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@ -1,116 +0,0 @@ |
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/*
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVCODEC_AVFFT_H |
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#define AVCODEC_AVFFT_H |
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/**
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* @file |
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* @ingroup lavc_fft |
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* FFT functions |
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*/ |
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/**
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* @defgroup lavc_fft FFT functions |
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* @ingroup lavc_misc |
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* |
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* @{ |
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*/ |
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typedef float FFTSample; |
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typedef struct FFTComplex { |
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FFTSample re, im; |
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} FFTComplex; |
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typedef struct FFTContext FFTContext; |
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/**
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* Set up a complex FFT. |
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* @param nbits log2 of the length of the input array |
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* @param inverse if 0 perform the forward transform, if 1 perform the inverse |
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*/ |
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FFTContext *av_fft_init(int nbits, int inverse); |
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/**
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* Do the permutation needed BEFORE calling ff_fft_calc(). |
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*/ |
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void av_fft_permute(FFTContext *s, FFTComplex *z); |
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/**
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* Do a complex FFT with the parameters defined in av_fft_init(). The |
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* input data must be permuted before. No 1.0/sqrt(n) normalization is done. |
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*/ |
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void av_fft_calc(FFTContext *s, FFTComplex *z); |
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void av_fft_end(FFTContext *s); |
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FFTContext *av_mdct_init(int nbits, int inverse, double scale); |
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void av_imdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input); |
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void av_imdct_half(FFTContext *s, FFTSample *output, const FFTSample *input); |
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void av_mdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input); |
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void av_mdct_end(FFTContext *s); |
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/* Real Discrete Fourier Transform */ |
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enum RDFTransformType { |
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DFT_R2C, |
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IDFT_C2R, |
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IDFT_R2C, |
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DFT_C2R, |
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}; |
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typedef struct RDFTContext RDFTContext; |
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/**
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* Set up a real FFT. |
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* @param nbits log2 of the length of the input array |
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* @param trans the type of transform |
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*/ |
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RDFTContext *av_rdft_init(int nbits, enum RDFTransformType trans); |
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void av_rdft_calc(RDFTContext *s, FFTSample *data); |
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void av_rdft_end(RDFTContext *s); |
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/* Discrete Cosine Transform */ |
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typedef struct DCTContext DCTContext; |
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enum DCTTransformType { |
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DCT_II = 0, |
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DCT_III, |
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DCT_I, |
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DST_I, |
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}; |
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/**
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* Set up DCT. |
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* @param nbits size of the input array: |
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* (1 << nbits) for DCT-II, DCT-III and DST-I |
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* (1 << nbits) + 1 for DCT-I |
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* |
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* @note the first element of the input of DST-I is ignored |
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*/ |
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DCTContext *av_dct_init(int nbits, enum DCTTransformType type); |
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void av_dct_calc(DCTContext *s, FFTSample *data); |
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void av_dct_end (DCTContext *s); |
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/**
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* @} |
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*/ |
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#endif /* AVCODEC_AVFFT_H */ |
@ -1,95 +0,0 @@ |
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/*
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* DXVA2 HW acceleration |
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* |
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* copyright (c) 2009 Laurent Aimar |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVCODEC_DXVA_H |
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#define AVCODEC_DXVA_H |
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/**
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* @file |
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* @ingroup lavc_codec_hwaccel_dxva2 |
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* Public libavcodec DXVA2 header. |
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*/ |
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#if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0600 |
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#undef _WIN32_WINNT |
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#endif |
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#if !defined(_WIN32_WINNT) |
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#define _WIN32_WINNT 0x0600 |
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#endif |
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#include <stdint.h> |
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#include <d3d9.h> |
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#include <dxva2api.h> |
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/**
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* @defgroup lavc_codec_hwaccel_dxva2 DXVA2 |
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* @ingroup lavc_codec_hwaccel |
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* |
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* @{ |
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*/ |
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#define FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG 1 ///< Work around for DXVA2 and old UVD/UVD+ ATI video cards
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/**
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* This structure is used to provides the necessary configurations and data |
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* to the DXVA2 FFmpeg HWAccel implementation. |
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* |
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* The application must make it available as AVCodecContext.hwaccel_context. |
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*/ |
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struct dxva_context { |
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/**
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* DXVA2 decoder object |
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*/ |
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IDirectXVideoDecoder *decoder; |
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/**
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* DXVA2 configuration used to create the decoder |
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*/ |
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const DXVA2_ConfigPictureDecode *cfg; |
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/**
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* The number of surface in the surface array |
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*/ |
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unsigned surface_count; |
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/**
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* The array of Direct3D surfaces used to create the decoder |
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*/ |
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LPDIRECT3DSURFACE9 *surface; |
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/**
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* A bit field configuring the workarounds needed for using the decoder |
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*/ |
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uint64_t workaround; |
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/**
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* Private to the FFmpeg AVHWAccel implementation |
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*/ |
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unsigned report_id; |
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}; |
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/**
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* @} |
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*/ |
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#endif /* AVCODEC_DXVA_H */ |
@ -1,397 +0,0 @@ |
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/*
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVCODEC_OLD_CODEC_IDS_H |
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#define AVCODEC_OLD_CODEC_IDS_H |
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#include "libavutil/common.h" |
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/*
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* This header exists to prevent new codec IDs from being accidentally added to |
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* the deprecated list. |
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* Do not include it directly. It will be removed on next major bump |
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* |
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* Do not add new items to this list. Use the AVCodecID enum instead. |
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*/ |
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CODEC_ID_NONE = AV_CODEC_ID_NONE, |
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/* video codecs */ |
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CODEC_ID_MPEG1VIDEO, |
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CODEC_ID_MPEG2VIDEO, ///< preferred ID for MPEG-1/2 video decoding
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CODEC_ID_MPEG2VIDEO_XVMC, |
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CODEC_ID_H261, |
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CODEC_ID_H263, |
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CODEC_ID_RV10, |
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CODEC_ID_RV20, |
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CODEC_ID_MJPEG, |
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CODEC_ID_MJPEGB, |
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CODEC_ID_LJPEG, |
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CODEC_ID_SP5X, |
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CODEC_ID_JPEGLS, |
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CODEC_ID_MPEG4, |
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CODEC_ID_RAWVIDEO, |
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CODEC_ID_MSMPEG4V1, |
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CODEC_ID_MSMPEG4V2, |
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CODEC_ID_MSMPEG4V3, |
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CODEC_ID_WMV1, |
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CODEC_ID_WMV2, |
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CODEC_ID_H263P, |
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CODEC_ID_H263I, |
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CODEC_ID_FLV1, |
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CODEC_ID_SVQ1, |
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CODEC_ID_SVQ3, |
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CODEC_ID_DVVIDEO, |
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CODEC_ID_HUFFYUV, |
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CODEC_ID_CYUV, |
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CODEC_ID_H264, |
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CODEC_ID_INDEO3, |
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CODEC_ID_VP3, |
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CODEC_ID_THEORA, |
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CODEC_ID_ASV1, |
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CODEC_ID_ASV2, |
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CODEC_ID_FFV1, |
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CODEC_ID_4XM, |
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CODEC_ID_VCR1, |
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CODEC_ID_CLJR, |
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CODEC_ID_MDEC, |
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CODEC_ID_ROQ, |
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CODEC_ID_INTERPLAY_VIDEO, |
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CODEC_ID_XAN_WC3, |
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CODEC_ID_XAN_WC4, |
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CODEC_ID_RPZA, |
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CODEC_ID_CINEPAK, |
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CODEC_ID_WS_VQA, |
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CODEC_ID_MSRLE, |
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CODEC_ID_MSVIDEO1, |
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CODEC_ID_IDCIN, |
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CODEC_ID_8BPS, |
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CODEC_ID_SMC, |
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CODEC_ID_FLIC, |
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CODEC_ID_TRUEMOTION1, |
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CODEC_ID_VMDVIDEO, |
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CODEC_ID_MSZH, |
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CODEC_ID_ZLIB, |
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CODEC_ID_QTRLE, |
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CODEC_ID_TSCC, |
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CODEC_ID_ULTI, |
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CODEC_ID_QDRAW, |
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CODEC_ID_VIXL, |
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CODEC_ID_QPEG, |
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CODEC_ID_PNG, |
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CODEC_ID_PPM, |
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CODEC_ID_PBM, |
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CODEC_ID_PGM, |
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CODEC_ID_PGMYUV, |
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CODEC_ID_PAM, |
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CODEC_ID_FFVHUFF, |
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CODEC_ID_RV30, |
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CODEC_ID_RV40, |
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CODEC_ID_VC1, |
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CODEC_ID_WMV3, |
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CODEC_ID_LOCO, |
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CODEC_ID_WNV1, |
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CODEC_ID_AASC, |
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CODEC_ID_INDEO2, |
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CODEC_ID_FRAPS, |
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CODEC_ID_TRUEMOTION2, |
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CODEC_ID_BMP, |
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CODEC_ID_CSCD, |
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CODEC_ID_MMVIDEO, |
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CODEC_ID_ZMBV, |
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CODEC_ID_AVS, |
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CODEC_ID_SMACKVIDEO, |
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CODEC_ID_NUV, |
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CODEC_ID_KMVC, |
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CODEC_ID_FLASHSV, |
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CODEC_ID_CAVS, |
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CODEC_ID_JPEG2000, |
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CODEC_ID_VMNC, |
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CODEC_ID_VP5, |
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CODEC_ID_VP6, |
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CODEC_ID_VP6F, |
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CODEC_ID_TARGA, |
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CODEC_ID_DSICINVIDEO, |
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CODEC_ID_TIERTEXSEQVIDEO, |
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CODEC_ID_TIFF, |
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CODEC_ID_GIF, |
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CODEC_ID_DXA, |
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CODEC_ID_DNXHD, |
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CODEC_ID_THP, |
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CODEC_ID_SGI, |
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CODEC_ID_C93, |
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CODEC_ID_BETHSOFTVID, |
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CODEC_ID_PTX, |
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CODEC_ID_TXD, |
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CODEC_ID_VP6A, |
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CODEC_ID_AMV, |
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CODEC_ID_VB, |
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CODEC_ID_PCX, |
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CODEC_ID_SUNRAST, |
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CODEC_ID_INDEO4, |
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CODEC_ID_INDEO5, |
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CODEC_ID_MIMIC, |
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CODEC_ID_RL2, |
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CODEC_ID_ESCAPE124, |
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CODEC_ID_DIRAC, |
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CODEC_ID_BFI, |
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CODEC_ID_CMV, |
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CODEC_ID_MOTIONPIXELS, |
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CODEC_ID_TGV, |
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CODEC_ID_TGQ, |
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CODEC_ID_TQI, |
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CODEC_ID_AURA, |
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CODEC_ID_AURA2, |
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CODEC_ID_V210X, |
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CODEC_ID_TMV, |
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CODEC_ID_V210, |
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CODEC_ID_DPX, |
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CODEC_ID_MAD, |
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CODEC_ID_FRWU, |
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CODEC_ID_FLASHSV2, |
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CODEC_ID_CDGRAPHICS, |
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CODEC_ID_R210, |
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CODEC_ID_ANM, |
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CODEC_ID_BINKVIDEO, |
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CODEC_ID_IFF_ILBM, |
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CODEC_ID_IFF_BYTERUN1, |
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CODEC_ID_KGV1, |
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CODEC_ID_YOP, |
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CODEC_ID_VP8, |
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CODEC_ID_PICTOR, |
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CODEC_ID_ANSI, |
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CODEC_ID_A64_MULTI, |
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CODEC_ID_A64_MULTI5, |
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CODEC_ID_R10K, |
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CODEC_ID_MXPEG, |
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CODEC_ID_LAGARITH, |
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CODEC_ID_PRORES, |
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CODEC_ID_JV, |
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CODEC_ID_DFA, |
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CODEC_ID_WMV3IMAGE, |
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CODEC_ID_VC1IMAGE, |
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CODEC_ID_UTVIDEO, |
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CODEC_ID_BMV_VIDEO, |
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CODEC_ID_VBLE, |
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CODEC_ID_DXTORY, |
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CODEC_ID_V410, |
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CODEC_ID_XWD, |
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CODEC_ID_CDXL, |
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CODEC_ID_XBM, |
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CODEC_ID_ZEROCODEC, |
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CODEC_ID_MSS1, |
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CODEC_ID_MSA1, |
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CODEC_ID_TSCC2, |
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CODEC_ID_MTS2, |
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CODEC_ID_CLLC, |
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CODEC_ID_Y41P = MKBETAG('Y','4','1','P'), |
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CODEC_ID_ESCAPE130 = MKBETAG('E','1','3','0'), |
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CODEC_ID_EXR = MKBETAG('0','E','X','R'), |
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CODEC_ID_AVRP = MKBETAG('A','V','R','P'), |
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CODEC_ID_G2M = MKBETAG( 0 ,'G','2','M'), |
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CODEC_ID_AVUI = MKBETAG('A','V','U','I'), |
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CODEC_ID_AYUV = MKBETAG('A','Y','U','V'), |
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CODEC_ID_V308 = MKBETAG('V','3','0','8'), |
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CODEC_ID_V408 = MKBETAG('V','4','0','8'), |
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CODEC_ID_YUV4 = MKBETAG('Y','U','V','4'), |
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CODEC_ID_SANM = MKBETAG('S','A','N','M'), |
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CODEC_ID_PAF_VIDEO = MKBETAG('P','A','F','V'), |
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CODEC_ID_SNOW = AV_CODEC_ID_SNOW, |
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/* various PCM "codecs" */ |
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CODEC_ID_FIRST_AUDIO = 0x10000, ///< A dummy id pointing at the start of audio codecs
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CODEC_ID_PCM_S16LE = 0x10000, |
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CODEC_ID_PCM_S16BE, |
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CODEC_ID_PCM_U16LE, |
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CODEC_ID_PCM_U16BE, |
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CODEC_ID_PCM_S8, |
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CODEC_ID_PCM_U8, |
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CODEC_ID_PCM_MULAW, |
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CODEC_ID_PCM_ALAW, |
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CODEC_ID_PCM_S32LE, |
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CODEC_ID_PCM_S32BE, |
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CODEC_ID_PCM_U32LE, |
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CODEC_ID_PCM_U32BE, |
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CODEC_ID_PCM_S24LE, |
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CODEC_ID_PCM_S24BE, |
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CODEC_ID_PCM_U24LE, |
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CODEC_ID_PCM_U24BE, |
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CODEC_ID_PCM_S24DAUD, |
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CODEC_ID_PCM_ZORK, |
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CODEC_ID_PCM_S16LE_PLANAR, |
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CODEC_ID_PCM_DVD, |
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CODEC_ID_PCM_F32BE, |
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CODEC_ID_PCM_F32LE, |
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CODEC_ID_PCM_F64BE, |
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CODEC_ID_PCM_F64LE, |
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CODEC_ID_PCM_BLURAY, |
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CODEC_ID_PCM_LXF, |
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CODEC_ID_S302M, |
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CODEC_ID_PCM_S8_PLANAR, |
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|
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/* various ADPCM codecs */ |
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CODEC_ID_ADPCM_IMA_QT = 0x11000, |
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CODEC_ID_ADPCM_IMA_WAV, |
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CODEC_ID_ADPCM_IMA_DK3, |
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CODEC_ID_ADPCM_IMA_DK4, |
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CODEC_ID_ADPCM_IMA_WS, |
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CODEC_ID_ADPCM_IMA_SMJPEG, |
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CODEC_ID_ADPCM_MS, |
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CODEC_ID_ADPCM_4XM, |
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CODEC_ID_ADPCM_XA, |
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CODEC_ID_ADPCM_ADX, |
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CODEC_ID_ADPCM_EA, |
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CODEC_ID_ADPCM_G726, |
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CODEC_ID_ADPCM_CT, |
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CODEC_ID_ADPCM_SWF, |
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CODEC_ID_ADPCM_YAMAHA, |
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CODEC_ID_ADPCM_SBPRO_4, |
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CODEC_ID_ADPCM_SBPRO_3, |
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CODEC_ID_ADPCM_SBPRO_2, |
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CODEC_ID_ADPCM_THP, |
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CODEC_ID_ADPCM_IMA_AMV, |
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CODEC_ID_ADPCM_EA_R1, |
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CODEC_ID_ADPCM_EA_R3, |
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CODEC_ID_ADPCM_EA_R2, |
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CODEC_ID_ADPCM_IMA_EA_SEAD, |
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CODEC_ID_ADPCM_IMA_EA_EACS, |
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CODEC_ID_ADPCM_EA_XAS, |
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CODEC_ID_ADPCM_EA_MAXIS_XA, |
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CODEC_ID_ADPCM_IMA_ISS, |
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CODEC_ID_ADPCM_G722, |
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CODEC_ID_ADPCM_IMA_APC, |
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CODEC_ID_VIMA = MKBETAG('V','I','M','A'), |
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|
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/* AMR */ |
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CODEC_ID_AMR_NB = 0x12000, |
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CODEC_ID_AMR_WB, |
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|
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/* RealAudio codecs*/ |
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CODEC_ID_RA_144 = 0x13000, |
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CODEC_ID_RA_288, |
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|
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/* various DPCM codecs */ |
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CODEC_ID_ROQ_DPCM = 0x14000, |
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CODEC_ID_INTERPLAY_DPCM, |
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CODEC_ID_XAN_DPCM, |
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CODEC_ID_SOL_DPCM, |
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|
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/* audio codecs */ |
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CODEC_ID_MP2 = 0x15000, |
||||
CODEC_ID_MP3, ///< preferred ID for decoding MPEG audio layer 1, 2 or 3
|
||||
CODEC_ID_AAC, |
||||
CODEC_ID_AC3, |
||||
CODEC_ID_DTS, |
||||
CODEC_ID_VORBIS, |
||||
CODEC_ID_DVAUDIO, |
||||
CODEC_ID_WMAV1, |
||||
CODEC_ID_WMAV2, |
||||
CODEC_ID_MACE3, |
||||
CODEC_ID_MACE6, |
||||
CODEC_ID_VMDAUDIO, |
||||
CODEC_ID_FLAC, |
||||
CODEC_ID_MP3ADU, |
||||
CODEC_ID_MP3ON4, |
||||
CODEC_ID_SHORTEN, |
||||
CODEC_ID_ALAC, |
||||
CODEC_ID_WESTWOOD_SND1, |
||||
CODEC_ID_GSM, ///< as in Berlin toast format
|
||||
CODEC_ID_QDM2, |
||||
CODEC_ID_COOK, |
||||
CODEC_ID_TRUESPEECH, |
||||
CODEC_ID_TTA, |
||||
CODEC_ID_SMACKAUDIO, |
||||
CODEC_ID_QCELP, |
||||
CODEC_ID_WAVPACK, |
||||
CODEC_ID_DSICINAUDIO, |
||||
CODEC_ID_IMC, |
||||
CODEC_ID_MUSEPACK7, |
||||
CODEC_ID_MLP, |
||||
CODEC_ID_GSM_MS, /* as found in WAV */ |
||||
CODEC_ID_ATRAC3, |
||||
CODEC_ID_VOXWARE, |
||||
CODEC_ID_APE, |
||||
CODEC_ID_NELLYMOSER, |
||||
CODEC_ID_MUSEPACK8, |
||||
CODEC_ID_SPEEX, |
||||
CODEC_ID_WMAVOICE, |
||||
CODEC_ID_WMAPRO, |
||||
CODEC_ID_WMALOSSLESS, |
||||
CODEC_ID_ATRAC3P, |
||||
CODEC_ID_EAC3, |
||||
CODEC_ID_SIPR, |
||||
CODEC_ID_MP1, |
||||
CODEC_ID_TWINVQ, |
||||
CODEC_ID_TRUEHD, |
||||
CODEC_ID_MP4ALS, |
||||
CODEC_ID_ATRAC1, |
||||
CODEC_ID_BINKAUDIO_RDFT, |
||||
CODEC_ID_BINKAUDIO_DCT, |
||||
CODEC_ID_AAC_LATM, |
||||
CODEC_ID_QDMC, |
||||
CODEC_ID_CELT, |
||||
CODEC_ID_G723_1, |
||||
CODEC_ID_G729, |
||||
CODEC_ID_8SVX_EXP, |
||||
CODEC_ID_8SVX_FIB, |
||||
CODEC_ID_BMV_AUDIO, |
||||
CODEC_ID_RALF, |
||||
CODEC_ID_IAC, |
||||
CODEC_ID_ILBC, |
||||
CODEC_ID_FFWAVESYNTH = MKBETAG('F','F','W','S'), |
||||
CODEC_ID_SONIC = MKBETAG('S','O','N','C'), |
||||
CODEC_ID_SONIC_LS = MKBETAG('S','O','N','L'), |
||||
CODEC_ID_PAF_AUDIO = MKBETAG('P','A','F','A'), |
||||
CODEC_ID_OPUS = MKBETAG('O','P','U','S'), |
||||
|
||||
/* subtitle codecs */ |
||||
CODEC_ID_FIRST_SUBTITLE = 0x17000, ///< A dummy ID pointing at the start of subtitle codecs.
|
||||
CODEC_ID_DVD_SUBTITLE = 0x17000, |
||||
CODEC_ID_DVB_SUBTITLE, |
||||
CODEC_ID_TEXT, ///< raw UTF-8 text
|
||||
CODEC_ID_XSUB, |
||||
CODEC_ID_SSA, |
||||
CODEC_ID_MOV_TEXT, |
||||
CODEC_ID_HDMV_PGS_SUBTITLE, |
||||
CODEC_ID_DVB_TELETEXT, |
||||
CODEC_ID_SRT, |
||||
CODEC_ID_MICRODVD = MKBETAG('m','D','V','D'), |
||||
CODEC_ID_EIA_608 = MKBETAG('c','6','0','8'), |
||||
CODEC_ID_JACOSUB = MKBETAG('J','S','U','B'), |
||||
CODEC_ID_SAMI = MKBETAG('S','A','M','I'), |
||||
CODEC_ID_REALTEXT = MKBETAG('R','T','X','T'), |
||||
CODEC_ID_SUBVIEWER = MKBETAG('S','u','b','V'), |
||||
|
||||
/* other specific kind of codecs (generally used for attachments) */ |
||||
CODEC_ID_FIRST_UNKNOWN = 0x18000, ///< A dummy ID pointing at the start of various fake codecs.
|
||||
CODEC_ID_TTF = 0x18000, |
||||
CODEC_ID_BINTEXT = MKBETAG('B','T','X','T'), |
||||
CODEC_ID_XBIN = MKBETAG('X','B','I','N'), |
||||
CODEC_ID_IDF = MKBETAG( 0 ,'I','D','F'), |
||||
CODEC_ID_OTF = MKBETAG( 0 ,'O','T','F'), |
||||
|
||||
CODEC_ID_PROBE = 0x19000, ///< codec_id is not known (like CODEC_ID_NONE) but lavf should attempt to identify it
|
||||
|
||||
CODEC_ID_MPEG2TS = 0x20000, /**< _FAKE_ codec to indicate a raw MPEG-2 TS
|
||||
* stream (only used by libavformat) */ |
||||
CODEC_ID_MPEG4SYSTEMS = 0x20001, /**< _FAKE_ codec to indicate a MPEG-4 Systems
|
||||
* stream (only used by libavformat) */ |
||||
CODEC_ID_FFMETADATA = 0x21000, ///< Dummy codec for streams containing only metadata information.
|
||||
|
||||
#endif /* AVCODEC_OLD_CODEC_IDS_H */ |
@ -1,173 +0,0 @@ |
||||
/*
|
||||
* Video Acceleration API (shared data between FFmpeg and the video player) |
||||
* HW decode acceleration for MPEG-2, MPEG-4, H.264 and VC-1 |
||||
* |
||||
* Copyright (C) 2008-2009 Splitted-Desktop Systems |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVCODEC_VAAPI_H |
||||
#define AVCODEC_VAAPI_H |
||||
|
||||
/**
|
||||
* @file |
||||
* @ingroup lavc_codec_hwaccel_vaapi |
||||
* Public libavcodec VA API header. |
||||
*/ |
||||
|
||||
#include <stdint.h> |
||||
|
||||
/**
|
||||
* @defgroup lavc_codec_hwaccel_vaapi VA API Decoding |
||||
* @ingroup lavc_codec_hwaccel |
||||
* @{ |
||||
*/ |
||||
|
||||
/**
|
||||
* This structure is used to share data between the FFmpeg library and |
||||
* the client video application. |
||||
* This shall be zero-allocated and available as |
||||
* AVCodecContext.hwaccel_context. All user members can be set once |
||||
* during initialization or through each AVCodecContext.get_buffer() |
||||
* function call. In any case, they must be valid prior to calling |
||||
* decoding functions. |
||||
*/ |
||||
struct vaapi_context { |
||||
/**
|
||||
* Window system dependent data |
||||
* |
||||
* - encoding: unused |
||||
* - decoding: Set by user |
||||
*/ |
||||
void *display; |
||||
|
||||
/**
|
||||
* Configuration ID |
||||
* |
||||
* - encoding: unused |
||||
* - decoding: Set by user |
||||
*/ |
||||
uint32_t config_id; |
||||
|
||||
/**
|
||||
* Context ID (video decode pipeline) |
||||
* |
||||
* - encoding: unused |
||||
* - decoding: Set by user |
||||
*/ |
||||
uint32_t context_id; |
||||
|
||||
/**
|
||||
* VAPictureParameterBuffer ID |
||||
* |
||||
* - encoding: unused |
||||
* - decoding: Set by libavcodec |
||||
*/ |
||||
uint32_t pic_param_buf_id; |
||||
|
||||
/**
|
||||
* VAIQMatrixBuffer ID |
||||
* |
||||
* - encoding: unused |
||||
* - decoding: Set by libavcodec |
||||
*/ |
||||
uint32_t iq_matrix_buf_id; |
||||
|
||||
/**
|
||||
* VABitPlaneBuffer ID (for VC-1 decoding) |
||||
* |
||||
* - encoding: unused |
||||
* - decoding: Set by libavcodec |
||||
*/ |
||||
uint32_t bitplane_buf_id; |
||||
|
||||
/**
|
||||
* Slice parameter/data buffer IDs |
||||
* |
||||
* - encoding: unused |
||||
* - decoding: Set by libavcodec |
||||
*/ |
||||
uint32_t *slice_buf_ids; |
||||
|
||||
/**
|
||||
* Number of effective slice buffer IDs to send to the HW |
||||
* |
||||
* - encoding: unused |
||||
* - decoding: Set by libavcodec |
||||
*/ |
||||
unsigned int n_slice_buf_ids; |
||||
|
||||
/**
|
||||
* Size of pre-allocated slice_buf_ids |
||||
* |
||||
* - encoding: unused |
||||
* - decoding: Set by libavcodec |
||||
*/ |
||||
unsigned int slice_buf_ids_alloc; |
||||
|
||||
/**
|
||||
* Pointer to VASliceParameterBuffers |
||||
* |
||||
* - encoding: unused |
||||
* - decoding: Set by libavcodec |
||||
*/ |
||||
void *slice_params; |
||||
|
||||
/**
|
||||
* Size of a VASliceParameterBuffer element |
||||
* |
||||
* - encoding: unused |
||||
* - decoding: Set by libavcodec |
||||
*/ |
||||
unsigned int slice_param_size; |
||||
|
||||
/**
|
||||
* Size of pre-allocated slice_params |
||||
* |
||||
* - encoding: unused |
||||
* - decoding: Set by libavcodec |
||||
*/ |
||||
unsigned int slice_params_alloc; |
||||
|
||||
/**
|
||||
* Number of slices currently filled in |
||||
* |
||||
* - encoding: unused |
||||
* - decoding: Set by libavcodec |
||||
*/ |
||||
unsigned int slice_count; |
||||
|
||||
/**
|
||||
* Pointer to slice data buffer base |
||||
* - encoding: unused |
||||
* - decoding: Set by libavcodec |
||||
*/ |
||||
const uint8_t *slice_data; |
||||
|
||||
/**
|
||||
* Current size of slice data |
||||
* |
||||
* - encoding: unused |
||||
* - decoding: Set by libavcodec |
||||
*/ |
||||
uint32_t slice_data_size; |
||||
}; |
||||
|
||||
/* @} */ |
||||
|
||||
#endif /* AVCODEC_VAAPI_H */ |
@ -1,162 +0,0 @@ |
||||
/*
|
||||
* VDA HW acceleration |
||||
* |
||||
* copyright (c) 2011 Sebastien Zwickert |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVCODEC_VDA_H |
||||
#define AVCODEC_VDA_H |
||||
|
||||
/**
|
||||
* @file |
||||
* @ingroup lavc_codec_hwaccel_vda |
||||
* Public libavcodec VDA header. |
||||
*/ |
||||
|
||||
#include <stdint.h> |
||||
|
||||
// emmintrin.h is unable to compile with -std=c99 -Werror=missing-prototypes
|
||||
// http://openradar.appspot.com/8026390
|
||||
#undef __GNUC_STDC_INLINE__ |
||||
|
||||
#define Picture QuickdrawPicture |
||||
#include <VideoDecodeAcceleration/VDADecoder.h> |
||||
#undef Picture |
||||
|
||||
#include "libavcodec/version.h" |
||||
|
||||
/**
|
||||
* @defgroup lavc_codec_hwaccel_vda VDA |
||||
* @ingroup lavc_codec_hwaccel |
||||
* |
||||
* @{ |
||||
*/ |
||||
|
||||
/**
|
||||
* This structure is used to provide the necessary configurations and data |
||||
* to the VDA FFmpeg HWAccel implementation. |
||||
* |
||||
* The application must make it available as AVCodecContext.hwaccel_context. |
||||
*/ |
||||
struct vda_context { |
||||
/**
|
||||
* VDA decoder object. |
||||
* |
||||
* - encoding: unused |
||||
* - decoding: Set/Unset by libavcodec. |
||||
*/ |
||||
VDADecoder decoder; |
||||
|
||||
/**
|
||||
* The Core Video pixel buffer that contains the current image data. |
||||
* |
||||
* encoding: unused |
||||
* decoding: Set by libavcodec. Unset by user. |
||||
*/ |
||||
CVPixelBufferRef cv_buffer; |
||||
|
||||
/**
|
||||
* Use the hardware decoder in synchronous mode. |
||||
* |
||||
* encoding: unused |
||||
* decoding: Set by user. |
||||
*/ |
||||
int use_sync_decoding; |
||||
|
||||
/**
|
||||
* The frame width. |
||||
* |
||||
* - encoding: unused |
||||
* - decoding: Set/Unset by user. |
||||
*/ |
||||
int width; |
||||
|
||||
/**
|
||||
* The frame height. |
||||
* |
||||
* - encoding: unused |
||||
* - decoding: Set/Unset by user. |
||||
*/ |
||||
int height; |
||||
|
||||
/**
|
||||
* The frame format. |
||||
* |
||||
* - encoding: unused |
||||
* - decoding: Set/Unset by user. |
||||
*/ |
||||
int format; |
||||
|
||||
/**
|
||||
* The pixel format for output image buffers. |
||||
* |
||||
* - encoding: unused |
||||
* - decoding: Set/Unset by user. |
||||
*/ |
||||
OSType cv_pix_fmt_type; |
||||
|
||||
/**
|
||||
* The current bitstream buffer. |
||||
* |
||||
* - encoding: unused |
||||
* - decoding: Set/Unset by libavcodec. |
||||
*/ |
||||
uint8_t *priv_bitstream; |
||||
|
||||
/**
|
||||
* The current size of the bitstream. |
||||
* |
||||
* - encoding: unused |
||||
* - decoding: Set/Unset by libavcodec. |
||||
*/ |
||||
int priv_bitstream_size; |
||||
|
||||
/**
|
||||
* The reference size used for fast reallocation. |
||||
* |
||||
* - encoding: unused |
||||
* - decoding: Set/Unset by libavcodec. |
||||
*/ |
||||
int priv_allocated_size; |
||||
|
||||
/**
|
||||
* Use av_buffer to manage buffer. |
||||
* When the flag is set, the CVPixelBuffers returned by the decoder will |
||||
* be released automatically, so you have to retain them if necessary. |
||||
* Not setting this flag may cause memory leak. |
||||
* |
||||
* encoding: unused |
||||
* decoding: Set by user. |
||||
*/ |
||||
int use_ref_buffer; |
||||
}; |
||||
|
||||
/** Create the video decoder. */ |
||||
int ff_vda_create_decoder(struct vda_context *vda_ctx, |
||||
uint8_t *extradata, |
||||
int extradata_size); |
||||
|
||||
/** Destroy the video decoder. */ |
||||
int ff_vda_destroy_decoder(struct vda_context *vda_ctx); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVCODEC_VDA_H */ |
@ -1,159 +0,0 @@ |
||||
/*
|
||||
* The Video Decode and Presentation API for UNIX (VDPAU) is used for |
||||
* hardware-accelerated decoding of MPEG-1/2, H.264 and VC-1. |
||||
* |
||||
* Copyright (C) 2008 NVIDIA |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVCODEC_VDPAU_H |
||||
#define AVCODEC_VDPAU_H |
||||
|
||||
/**
|
||||
* @file |
||||
* @ingroup lavc_codec_hwaccel_vdpau |
||||
* Public libavcodec VDPAU header. |
||||
*/ |
||||
|
||||
|
||||
/**
|
||||
* @defgroup lavc_codec_hwaccel_vdpau VDPAU Decoder and Renderer |
||||
* @ingroup lavc_codec_hwaccel |
||||
* |
||||
* VDPAU hardware acceleration has two modules |
||||
* - VDPAU decoding |
||||
* - VDPAU presentation |
||||
* |
||||
* The VDPAU decoding module parses all headers using FFmpeg |
||||
* parsing mechanisms and uses VDPAU for the actual decoding. |
||||
* |
||||
* As per the current implementation, the actual decoding |
||||
* and rendering (API calls) are done as part of the VDPAU |
||||
* presentation (vo_vdpau.c) module. |
||||
* |
||||
* @{ |
||||
*/ |
||||
|
||||
#include <vdpau/vdpau.h> |
||||
#include <vdpau/vdpau_x11.h> |
||||
#include "libavutil/avconfig.h" |
||||
|
||||
union FFVdpPictureInfo { |
||||
VdpPictureInfoH264 h264; |
||||
VdpPictureInfoMPEG1Or2 mpeg; |
||||
VdpPictureInfoVC1 vc1; |
||||
VdpPictureInfoMPEG4Part2 mpeg4; |
||||
}; |
||||
|
||||
/**
|
||||
* This structure is used to share data between the libavcodec library and |
||||
* the client video application. |
||||
* The user shall zero-allocate the structure and make it available as |
||||
* AVCodecContext.hwaccel_context. Members can be set by the user once |
||||
* during initialization or through each AVCodecContext.get_buffer() |
||||
* function call. In any case, they must be valid prior to calling |
||||
* decoding functions. |
||||
*/ |
||||
typedef struct AVVDPAUContext { |
||||
/**
|
||||
* VDPAU decoder handle |
||||
* |
||||
* Set by user. |
||||
*/ |
||||
VdpDecoder decoder; |
||||
|
||||
/**
|
||||
* VDPAU decoder render callback |
||||
* |
||||
* Set by the user. |
||||
*/ |
||||
VdpDecoderRender *render; |
||||
|
||||
/**
|
||||
* VDPAU picture information |
||||
* |
||||
* Set by libavcodec. |
||||
*/ |
||||
union FFVdpPictureInfo info; |
||||
|
||||
/**
|
||||
* Allocated size of the bitstream_buffers table. |
||||
* |
||||
* Set by libavcodec. |
||||
*/ |
||||
int bitstream_buffers_allocated; |
||||
|
||||
/**
|
||||
* Useful bitstream buffers in the bitstream buffers table. |
||||
* |
||||
* Set by libavcodec. |
||||
*/ |
||||
int bitstream_buffers_used; |
||||
|
||||
/**
|
||||
* Table of bitstream buffers. |
||||
* The user is responsible for freeing this buffer using av_freep(). |
||||
* |
||||
* Set by libavcodec. |
||||
*/ |
||||
VdpBitstreamBuffer *bitstream_buffers; |
||||
} AVVDPAUContext; |
||||
|
||||
|
||||
/** @brief The videoSurface is used for rendering. */ |
||||
#define FF_VDPAU_STATE_USED_FOR_RENDER 1 |
||||
|
||||
/**
|
||||
* @brief The videoSurface is needed for reference/prediction. |
||||
* The codec manipulates this. |
||||
*/ |
||||
#define FF_VDPAU_STATE_USED_FOR_REFERENCE 2 |
||||
|
||||
/**
|
||||
* @brief This structure is used as a callback between the FFmpeg |
||||
* decoder (vd_) and presentation (vo_) module. |
||||
* This is used for defining a video frame containing surface, |
||||
* picture parameter, bitstream information etc which are passed |
||||
* between the FFmpeg decoder and its clients. |
||||
*/ |
||||
struct vdpau_render_state { |
||||
VdpVideoSurface surface; ///< Used as rendered surface, never changed.
|
||||
|
||||
int state; ///< Holds FF_VDPAU_STATE_* values.
|
||||
|
||||
#if AV_HAVE_INCOMPATIBLE_LIBAV_ABI |
||||
/** picture parameter information for all supported codecs */ |
||||
union FFVdpPictureInfo info; |
||||
#endif |
||||
|
||||
/** Describe size/location of the compressed video data.
|
||||
Set to 0 when freeing bitstream_buffers. */ |
||||
int bitstream_buffers_allocated; |
||||
int bitstream_buffers_used; |
||||
/** The user is responsible for freeing this buffer using av_freep(). */ |
||||
VdpBitstreamBuffer *bitstream_buffers; |
||||
|
||||
#if !AV_HAVE_INCOMPATIBLE_LIBAV_ABI |
||||
/** picture parameter information for all supported codecs */ |
||||
union FFVdpPictureInfo info; |
||||
#endif |
||||
}; |
||||
|
||||
/* @}*/ |
||||
|
||||
#endif /* AVCODEC_VDPAU_H */ |
@ -1,95 +0,0 @@ |
||||
/*
|
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVCODEC_VERSION_H |
||||
#define AVCODEC_VERSION_H |
||||
|
||||
/**
|
||||
* @file |
||||
* @ingroup libavc |
||||
* Libavcodec version macros. |
||||
*/ |
||||
|
||||
#include "libavutil/avutil.h" |
||||
|
||||
#define LIBAVCODEC_VERSION_MAJOR 55 |
||||
#define LIBAVCODEC_VERSION_MINOR 18 |
||||
#define LIBAVCODEC_VERSION_MICRO 102 |
||||
|
||||
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \ |
||||
LIBAVCODEC_VERSION_MINOR, \
|
||||
LIBAVCODEC_VERSION_MICRO) |
||||
#define LIBAVCODEC_VERSION AV_VERSION(LIBAVCODEC_VERSION_MAJOR, \ |
||||
LIBAVCODEC_VERSION_MINOR, \
|
||||
LIBAVCODEC_VERSION_MICRO) |
||||
#define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT |
||||
|
||||
#define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION) |
||||
|
||||
/**
|
||||
* FF_API_* defines may be placed below to indicate public API that will be |
||||
* dropped at a future version bump. The defines themselves are not part of |
||||
* the public API and may change, break or disappear at any time. |
||||
*/ |
||||
|
||||
#ifndef FF_API_REQUEST_CHANNELS |
||||
#define FF_API_REQUEST_CHANNELS (LIBAVCODEC_VERSION_MAJOR < 56) |
||||
#endif |
||||
#ifndef FF_API_ALLOC_CONTEXT |
||||
#define FF_API_ALLOC_CONTEXT (LIBAVCODEC_VERSION_MAJOR < 55) |
||||
#endif |
||||
#ifndef FF_API_AVCODEC_OPEN |
||||
#define FF_API_AVCODEC_OPEN (LIBAVCODEC_VERSION_MAJOR < 55) |
||||
#endif |
||||
#ifndef FF_API_OLD_DECODE_AUDIO |
||||
#define FF_API_OLD_DECODE_AUDIO (LIBAVCODEC_VERSION_MAJOR < 56) |
||||
#endif |
||||
#ifndef FF_API_OLD_TIMECODE |
||||
#define FF_API_OLD_TIMECODE (LIBAVCODEC_VERSION_MAJOR < 55) |
||||
#endif |
||||
|
||||
#ifndef FF_API_OLD_ENCODE_AUDIO |
||||
#define FF_API_OLD_ENCODE_AUDIO (LIBAVCODEC_VERSION_MAJOR < 56) |
||||
#endif |
||||
#ifndef FF_API_OLD_ENCODE_VIDEO |
||||
#define FF_API_OLD_ENCODE_VIDEO (LIBAVCODEC_VERSION_MAJOR < 56) |
||||
#endif |
||||
#ifndef FF_API_CODEC_ID |
||||
#define FF_API_CODEC_ID (LIBAVCODEC_VERSION_MAJOR < 56) |
||||
#endif |
||||
#ifndef FF_API_AVCODEC_RESAMPLE |
||||
#define FF_API_AVCODEC_RESAMPLE (LIBAVCODEC_VERSION_MAJOR < 56) |
||||
#endif |
||||
#ifndef FF_API_DEINTERLACE |
||||
#define FF_API_DEINTERLACE (LIBAVCODEC_VERSION_MAJOR < 56) |
||||
#endif |
||||
#ifndef FF_API_DESTRUCT_PACKET |
||||
#define FF_API_DESTRUCT_PACKET (LIBAVCODEC_VERSION_MAJOR < 56) |
||||
#endif |
||||
#ifndef FF_API_GET_BUFFER |
||||
#define FF_API_GET_BUFFER (LIBAVCODEC_VERSION_MAJOR < 56) |
||||
#endif |
||||
#ifndef FF_API_MISSING_SAMPLE |
||||
#define FF_API_MISSING_SAMPLE (LIBAVCODEC_VERSION_MAJOR < 56) |
||||
#endif |
||||
#ifndef FF_API_LOWRES |
||||
#define FF_API_LOWRES (LIBAVCODEC_VERSION_MAJOR < 56) |
||||
#endif |
||||
|
||||
#endif /* AVCODEC_VERSION_H */ |
@ -1,168 +0,0 @@ |
||||
/*
|
||||
* Copyright (C) 2003 Ivan Kalvachev |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVCODEC_XVMC_H |
||||
#define AVCODEC_XVMC_H |
||||
|
||||
/**
|
||||
* @file |
||||
* @ingroup lavc_codec_hwaccel_xvmc |
||||
* Public libavcodec XvMC header. |
||||
*/ |
||||
|
||||
#include <X11/extensions/XvMC.h> |
||||
|
||||
#include "avcodec.h" |
||||
|
||||
/**
|
||||
* @defgroup lavc_codec_hwaccel_xvmc XvMC |
||||
* @ingroup lavc_codec_hwaccel |
||||
* |
||||
* @{ |
||||
*/ |
||||
|
||||
#define AV_XVMC_ID 0x1DC711C0 /**< special value to ensure that regular pixel routines haven't corrupted the struct |
||||
the number is 1337 speak for the letters IDCT MCo (motion compensation) */ |
||||
|
||||
struct xvmc_pix_fmt { |
||||
/** The field contains the special constant value AV_XVMC_ID.
|
||||
It is used as a test that the application correctly uses the API, |
||||
and that there is no corruption caused by pixel routines. |
||||
- application - set during initialization |
||||
- libavcodec - unchanged |
||||
*/ |
||||
int xvmc_id; |
||||
|
||||
/** Pointer to the block array allocated by XvMCCreateBlocks().
|
||||
The array has to be freed by XvMCDestroyBlocks(). |
||||
Each group of 64 values represents one data block of differential |
||||
pixel information (in MoCo mode) or coefficients for IDCT. |
||||
- application - set the pointer during initialization |
||||
- libavcodec - fills coefficients/pixel data into the array |
||||
*/ |
||||
short* data_blocks; |
||||
|
||||
/** Pointer to the macroblock description array allocated by
|
||||
XvMCCreateMacroBlocks() and freed by XvMCDestroyMacroBlocks(). |
||||
- application - set the pointer during initialization |
||||
- libavcodec - fills description data into the array |
||||
*/ |
||||
XvMCMacroBlock* mv_blocks; |
||||
|
||||
/** Number of macroblock descriptions that can be stored in the mv_blocks
|
||||
array. |
||||
- application - set during initialization |
||||
- libavcodec - unchanged |
||||
*/ |
||||
int allocated_mv_blocks; |
||||
|
||||
/** Number of blocks that can be stored at once in the data_blocks array.
|
||||
- application - set during initialization |
||||
- libavcodec - unchanged |
||||
*/ |
||||
int allocated_data_blocks; |
||||
|
||||
/** Indicate that the hardware would interpret data_blocks as IDCT
|
||||
coefficients and perform IDCT on them. |
||||
- application - set during initialization |
||||
- libavcodec - unchanged |
||||
*/ |
||||
int idct; |
||||
|
||||
/** In MoCo mode it indicates that intra macroblocks are assumed to be in
|
||||
unsigned format; same as the XVMC_INTRA_UNSIGNED flag. |
||||
- application - set during initialization |
||||
- libavcodec - unchanged |
||||
*/ |
||||
int unsigned_intra; |
||||
|
||||
/** Pointer to the surface allocated by XvMCCreateSurface().
|
||||
It has to be freed by XvMCDestroySurface() on application exit. |
||||
It identifies the frame and its state on the video hardware. |
||||
- application - set during initialization |
||||
- libavcodec - unchanged |
||||
*/ |
||||
XvMCSurface* p_surface; |
||||
|
||||
/** Set by the decoder before calling ff_draw_horiz_band(),
|
||||
needed by the XvMCRenderSurface function. */ |
||||
//@{
|
||||
/** Pointer to the surface used as past reference
|
||||
- application - unchanged |
||||
- libavcodec - set |
||||
*/ |
||||
XvMCSurface* p_past_surface; |
||||
|
||||
/** Pointer to the surface used as future reference
|
||||
- application - unchanged |
||||
- libavcodec - set |
||||
*/ |
||||
XvMCSurface* p_future_surface; |
||||
|
||||
/** top/bottom field or frame
|
||||
- application - unchanged |
||||
- libavcodec - set |
||||
*/ |
||||
unsigned int picture_structure; |
||||
|
||||
/** XVMC_SECOND_FIELD - 1st or 2nd field in the sequence
|
||||
- application - unchanged |
||||
- libavcodec - set |
||||
*/ |
||||
unsigned int flags; |
||||
//}@
|
||||
|
||||
/** Number of macroblock descriptions in the mv_blocks array
|
||||
that have already been passed to the hardware. |
||||
- application - zeroes it on get_buffer(). |
||||
A successful ff_draw_horiz_band() may increment it |
||||
with filled_mb_block_num or zero both. |
||||
- libavcodec - unchanged |
||||
*/ |
||||
int start_mv_blocks_num; |
||||
|
||||
/** Number of new macroblock descriptions in the mv_blocks array (after
|
||||
start_mv_blocks_num) that are filled by libavcodec and have to be |
||||
passed to the hardware. |
||||
- application - zeroes it on get_buffer() or after successful |
||||
ff_draw_horiz_band(). |
||||
- libavcodec - increment with one of each stored MB |
||||
*/ |
||||
int filled_mv_blocks_num; |
||||
|
||||
/** Number of the next free data block; one data block consists of
|
||||
64 short values in the data_blocks array. |
||||
All blocks before this one have already been claimed by placing their |
||||
position into the corresponding block description structure field, |
||||
that are part of the mv_blocks array. |
||||
- application - zeroes it on get_buffer(). |
||||
A successful ff_draw_horiz_band() may zero it together |
||||
with start_mb_blocks_num. |
||||
- libavcodec - each decoded macroblock increases it by the number |
||||
of coded blocks it contains. |
||||
*/ |
||||
int next_free_data_block_num; |
||||
}; |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVCODEC_XVMC_H */ |
@ -1,69 +0,0 @@ |
||||
/*
|
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVDEVICE_AVDEVICE_H |
||||
#define AVDEVICE_AVDEVICE_H |
||||
|
||||
#include "version.h" |
||||
|
||||
/**
|
||||
* @file |
||||
* @ingroup lavd |
||||
* Main libavdevice API header |
||||
*/ |
||||
|
||||
/**
|
||||
* @defgroup lavd Special devices muxing/demuxing library |
||||
* @{ |
||||
* Libavdevice is a complementary library to @ref libavf "libavformat". It |
||||
* provides various "special" platform-specific muxers and demuxers, e.g. for |
||||
* grabbing devices, audio capture and playback etc. As a consequence, the |
||||
* (de)muxers in libavdevice are of the AVFMT_NOFILE type (they use their own |
||||
* I/O functions). The filename passed to avformat_open_input() often does not |
||||
* refer to an actually existing file, but has some special device-specific |
||||
* meaning - e.g. for x11grab it is the display name. |
||||
* |
||||
* To use libavdevice, simply call avdevice_register_all() to register all |
||||
* compiled muxers and demuxers. They all use standard libavformat API. |
||||
* @} |
||||
*/ |
||||
|
||||
#include "libavformat/avformat.h" |
||||
|
||||
/**
|
||||
* Return the LIBAVDEVICE_VERSION_INT constant. |
||||
*/ |
||||
unsigned avdevice_version(void); |
||||
|
||||
/**
|
||||
* Return the libavdevice build-time configuration. |
||||
*/ |
||||
const char *avdevice_configuration(void); |
||||
|
||||
/**
|
||||
* Return the libavdevice license. |
||||
*/ |
||||
const char *avdevice_license(void); |
||||
|
||||
/**
|
||||
* Initialize libavdevice and register all the input and output devices. |
||||
* @warning This function is not thread safe. |
||||
*/ |
||||
void avdevice_register_all(void); |
||||
|
||||
#endif /* AVDEVICE_AVDEVICE_H */ |
@ -1,50 +0,0 @@ |
||||
/*
|
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVDEVICE_VERSION_H |
||||
#define AVDEVICE_VERSION_H |
||||
|
||||
/**
|
||||
* @file |
||||
* @ingroup lavd |
||||
* Libavdevice version macros |
||||
*/ |
||||
|
||||
#include "libavutil/avutil.h" |
||||
|
||||
#define LIBAVDEVICE_VERSION_MAJOR 55 |
||||
#define LIBAVDEVICE_VERSION_MINOR 3 |
||||
#define LIBAVDEVICE_VERSION_MICRO 100 |
||||
|
||||
#define LIBAVDEVICE_VERSION_INT AV_VERSION_INT(LIBAVDEVICE_VERSION_MAJOR, \ |
||||
LIBAVDEVICE_VERSION_MINOR, \
|
||||
LIBAVDEVICE_VERSION_MICRO) |
||||
#define LIBAVDEVICE_VERSION AV_VERSION(LIBAVDEVICE_VERSION_MAJOR, \ |
||||
LIBAVDEVICE_VERSION_MINOR, \
|
||||
LIBAVDEVICE_VERSION_MICRO) |
||||
#define LIBAVDEVICE_BUILD LIBAVDEVICE_VERSION_INT |
||||
|
||||
#define LIBAVDEVICE_IDENT "Lavd" AV_STRINGIFY(LIBAVDEVICE_VERSION) |
||||
|
||||
/**
|
||||
* FF_API_* defines may be placed below to indicate public API that will be |
||||
* dropped at a future version bump. The defines themselves are not part of |
||||
* the public API and may change, break or disappear at any time. |
||||
*/ |
||||
|
||||
#endif /* AVDEVICE_VERSION_H */ |
File diff suppressed because it is too large
Load Diff
@ -1,481 +0,0 @@ |
||||
/*
|
||||
* copyright (c) 2001 Fabrice Bellard |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
#ifndef AVFORMAT_AVIO_H |
||||
#define AVFORMAT_AVIO_H |
||||
|
||||
/**
|
||||
* @file |
||||
* @ingroup lavf_io |
||||
* Buffered I/O operations |
||||
*/ |
||||
|
||||
#include <stdint.h> |
||||
|
||||
#include "libavutil/common.h" |
||||
#include "libavutil/dict.h" |
||||
#include "libavutil/log.h" |
||||
|
||||
#include "libavformat/version.h" |
||||
|
||||
|
||||
#define AVIO_SEEKABLE_NORMAL 0x0001 /**< Seeking works like for a local file */ |
||||
|
||||
/**
|
||||
* Callback for checking whether to abort blocking functions. |
||||
* AVERROR_EXIT is returned in this case by the interrupted |
||||
* function. During blocking operations, callback is called with |
||||
* opaque as parameter. If the callback returns 1, the |
||||
* blocking operation will be aborted. |
||||
* |
||||
* No members can be added to this struct without a major bump, if |
||||
* new elements have been added after this struct in AVFormatContext |
||||
* or AVIOContext. |
||||
*/ |
||||
typedef struct AVIOInterruptCB { |
||||
int (*callback)(void*); |
||||
void *opaque; |
||||
} AVIOInterruptCB; |
||||
|
||||
/**
|
||||
* Bytestream IO Context. |
||||
* New fields can be added to the end with minor version bumps. |
||||
* Removal, reordering and changes to existing fields require a major |
||||
* version bump. |
||||
* sizeof(AVIOContext) must not be used outside libav*. |
||||
* |
||||
* @note None of the function pointers in AVIOContext should be called |
||||
* directly, they should only be set by the client application |
||||
* when implementing custom I/O. Normally these are set to the |
||||
* function pointers specified in avio_alloc_context() |
||||
*/ |
||||
typedef struct AVIOContext { |
||||
/**
|
||||
* A class for private options. |
||||
* |
||||
* If this AVIOContext is created by avio_open2(), av_class is set and |
||||
* passes the options down to protocols. |
||||
* |
||||
* If this AVIOContext is manually allocated, then av_class may be set by |
||||
* the caller. |
||||
* |
||||
* warning -- this field can be NULL, be sure to not pass this AVIOContext |
||||
* to any av_opt_* functions in that case. |
||||
*/ |
||||
const AVClass *av_class; |
||||
unsigned char *buffer; /**< Start of the buffer. */ |
||||
int buffer_size; /**< Maximum buffer size */ |
||||
unsigned char *buf_ptr; /**< Current position in the buffer */ |
||||
unsigned char *buf_end; /**< End of the data, may be less than
|
||||
buffer+buffer_size if the read function returned |
||||
less data than requested, e.g. for streams where |
||||
no more data has been received yet. */ |
||||
void *opaque; /**< A private pointer, passed to the read/write/seek/...
|
||||
functions. */ |
||||
int (*read_packet)(void *opaque, uint8_t *buf, int buf_size); |
||||
int (*write_packet)(void *opaque, uint8_t *buf, int buf_size); |
||||
int64_t (*seek)(void *opaque, int64_t offset, int whence); |
||||
int64_t pos; /**< position in the file of the current buffer */ |
||||
int must_flush; /**< true if the next seek should flush */ |
||||
int eof_reached; /**< true if eof reached */ |
||||
int write_flag; /**< true if open for writing */ |
||||
int max_packet_size; |
||||
unsigned long checksum; |
||||
unsigned char *checksum_ptr; |
||||
unsigned long (*update_checksum)(unsigned long checksum, const uint8_t *buf, unsigned int size); |
||||
int error; /**< contains the error code or 0 if no error happened */ |
||||
/**
|
||||
* Pause or resume playback for network streaming protocols - e.g. MMS. |
||||
*/ |
||||
int (*read_pause)(void *opaque, int pause); |
||||
/**
|
||||
* Seek to a given timestamp in stream with the specified stream_index. |
||||
* Needed for some network streaming protocols which don't support seeking |
||||
* to byte position. |
||||
*/ |
||||
int64_t (*read_seek)(void *opaque, int stream_index, |
||||
int64_t timestamp, int flags); |
||||
/**
|
||||
* A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable. |
||||
*/ |
||||
int seekable; |
||||
|
||||
/**
|
||||
* max filesize, used to limit allocations |
||||
* This field is internal to libavformat and access from outside is not allowed. |
||||
*/ |
||||
int64_t maxsize; |
||||
|
||||
/**
|
||||
* avio_read and avio_write should if possible be satisfied directly |
||||
* instead of going through a buffer, and avio_seek will always |
||||
* call the underlying seek function directly. |
||||
*/ |
||||
int direct; |
||||
|
||||
/**
|
||||
* Bytes read statistic |
||||
* This field is internal to libavformat and access from outside is not allowed. |
||||
*/ |
||||
int64_t bytes_read; |
||||
|
||||
/**
|
||||
* seek statistic |
||||
* This field is internal to libavformat and access from outside is not allowed. |
||||
*/ |
||||
int seek_count; |
||||
|
||||
/**
|
||||
* writeout statistic |
||||
* This field is internal to libavformat and access from outside is not allowed. |
||||
*/ |
||||
int writeout_count; |
||||
} AVIOContext; |
||||
|
||||
/* unbuffered I/O */ |
||||
|
||||
/**
|
||||
* Return AVIO_FLAG_* access flags corresponding to the access permissions |
||||
* of the resource in url, or a negative value corresponding to an |
||||
* AVERROR code in case of failure. The returned access flags are |
||||
* masked by the value in flags. |
||||
* |
||||
* @note This function is intrinsically unsafe, in the sense that the |
||||
* checked resource may change its existence or permission status from |
||||
* one call to another. Thus you should not trust the returned value, |
||||
* unless you are sure that no other processes are accessing the |
||||
* checked resource. |
||||
*/ |
||||
int avio_check(const char *url, int flags); |
||||
|
||||
/**
|
||||
* Allocate and initialize an AVIOContext for buffered I/O. It must be later |
||||
* freed with av_free(). |
||||
* |
||||
* @param buffer Memory block for input/output operations via AVIOContext. |
||||
* The buffer must be allocated with av_malloc() and friends. |
||||
* @param buffer_size The buffer size is very important for performance. |
||||
* For protocols with fixed blocksize it should be set to this blocksize. |
||||
* For others a typical size is a cache page, e.g. 4kb. |
||||
* @param write_flag Set to 1 if the buffer should be writable, 0 otherwise. |
||||
* @param opaque An opaque pointer to user-specific data. |
||||
* @param read_packet A function for refilling the buffer, may be NULL. |
||||
* @param write_packet A function for writing the buffer contents, may be NULL. |
||||
* The function may not change the input buffers content. |
||||
* @param seek A function for seeking to specified byte position, may be NULL. |
||||
* |
||||
* @return Allocated AVIOContext or NULL on failure. |
||||
*/ |
||||
AVIOContext *avio_alloc_context( |
||||
unsigned char *buffer, |
||||
int buffer_size, |
||||
int write_flag, |
||||
void *opaque, |
||||
int (*read_packet)(void *opaque, uint8_t *buf, int buf_size), |
||||
int (*write_packet)(void *opaque, uint8_t *buf, int buf_size), |
||||
int64_t (*seek)(void *opaque, int64_t offset, int whence)); |
||||
|
||||
void avio_w8(AVIOContext *s, int b); |
||||
void avio_write(AVIOContext *s, const unsigned char *buf, int size); |
||||
void avio_wl64(AVIOContext *s, uint64_t val); |
||||
void avio_wb64(AVIOContext *s, uint64_t val); |
||||
void avio_wl32(AVIOContext *s, unsigned int val); |
||||
void avio_wb32(AVIOContext *s, unsigned int val); |
||||
void avio_wl24(AVIOContext *s, unsigned int val); |
||||
void avio_wb24(AVIOContext *s, unsigned int val); |
||||
void avio_wl16(AVIOContext *s, unsigned int val); |
||||
void avio_wb16(AVIOContext *s, unsigned int val); |
||||
|
||||
/**
|
||||
* Write a NULL-terminated string. |
||||
* @return number of bytes written. |
||||
*/ |
||||
int avio_put_str(AVIOContext *s, const char *str); |
||||
|
||||
/**
|
||||
* Convert an UTF-8 string to UTF-16LE and write it. |
||||
* @return number of bytes written. |
||||
*/ |
||||
int avio_put_str16le(AVIOContext *s, const char *str); |
||||
|
||||
/**
|
||||
* Passing this as the "whence" parameter to a seek function causes it to |
||||
* return the filesize without seeking anywhere. Supporting this is optional. |
||||
* If it is not supported then the seek function will return <0. |
||||
*/ |
||||
#define AVSEEK_SIZE 0x10000 |
||||
|
||||
/**
|
||||
* Oring this flag as into the "whence" parameter to a seek function causes it to |
||||
* seek by any means (like reopening and linear reading) or other normally unreasonable |
||||
* means that can be extremely slow. |
||||
* This may be ignored by the seek code. |
||||
*/ |
||||
#define AVSEEK_FORCE 0x20000 |
||||
|
||||
/**
|
||||
* fseek() equivalent for AVIOContext. |
||||
* @return new position or AVERROR. |
||||
*/ |
||||
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence); |
||||
|
||||
/**
|
||||
* Skip given number of bytes forward |
||||
* @return new position or AVERROR. |
||||
*/ |
||||
int64_t avio_skip(AVIOContext *s, int64_t offset); |
||||
|
||||
/**
|
||||
* ftell() equivalent for AVIOContext. |
||||
* @return position or AVERROR. |
||||
*/ |
||||
static av_always_inline int64_t avio_tell(AVIOContext *s) |
||||
{ |
||||
return avio_seek(s, 0, SEEK_CUR); |
||||
} |
||||
|
||||
/**
|
||||
* Get the filesize. |
||||
* @return filesize or AVERROR |
||||
*/ |
||||
int64_t avio_size(AVIOContext *s); |
||||
|
||||
/**
|
||||
* feof() equivalent for AVIOContext. |
||||
* @return non zero if and only if end of file |
||||
*/ |
||||
int url_feof(AVIOContext *s); |
||||
|
||||
/** @warning currently size is limited */ |
||||
int avio_printf(AVIOContext *s, const char *fmt, ...) av_printf_format(2, 3); |
||||
|
||||
/**
|
||||
* Force flushing of buffered data to the output s. |
||||
* |
||||
* Force the buffered data to be immediately written to the output, |
||||
* without to wait to fill the internal buffer. |
||||
*/ |
||||
void avio_flush(AVIOContext *s); |
||||
|
||||
/**
|
||||
* Read size bytes from AVIOContext into buf. |
||||
* @return number of bytes read or AVERROR |
||||
*/ |
||||
int avio_read(AVIOContext *s, unsigned char *buf, int size); |
||||
|
||||
/**
|
||||
* @name Functions for reading from AVIOContext |
||||
* @{ |
||||
* |
||||
* @note return 0 if EOF, so you cannot use it if EOF handling is |
||||
* necessary |
||||
*/ |
||||
int avio_r8 (AVIOContext *s); |
||||
unsigned int avio_rl16(AVIOContext *s); |
||||
unsigned int avio_rl24(AVIOContext *s); |
||||
unsigned int avio_rl32(AVIOContext *s); |
||||
uint64_t avio_rl64(AVIOContext *s); |
||||
unsigned int avio_rb16(AVIOContext *s); |
||||
unsigned int avio_rb24(AVIOContext *s); |
||||
unsigned int avio_rb32(AVIOContext *s); |
||||
uint64_t avio_rb64(AVIOContext *s); |
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
/**
|
||||
* Read a string from pb into buf. The reading will terminate when either |
||||
* a NULL character was encountered, maxlen bytes have been read, or nothing |
||||
* more can be read from pb. The result is guaranteed to be NULL-terminated, it |
||||
* will be truncated if buf is too small. |
||||
* Note that the string is not interpreted or validated in any way, it |
||||
* might get truncated in the middle of a sequence for multi-byte encodings. |
||||
* |
||||
* @return number of bytes read (is always <= maxlen). |
||||
* If reading ends on EOF or error, the return value will be one more than |
||||
* bytes actually read. |
||||
*/ |
||||
int avio_get_str(AVIOContext *pb, int maxlen, char *buf, int buflen); |
||||
|
||||
/**
|
||||
* Read a UTF-16 string from pb and convert it to UTF-8. |
||||
* The reading will terminate when either a null or invalid character was |
||||
* encountered or maxlen bytes have been read. |
||||
* @return number of bytes read (is always <= maxlen) |
||||
*/ |
||||
int avio_get_str16le(AVIOContext *pb, int maxlen, char *buf, int buflen); |
||||
int avio_get_str16be(AVIOContext *pb, int maxlen, char *buf, int buflen); |
||||
|
||||
|
||||
/**
|
||||
* @name URL open modes |
||||
* The flags argument to avio_open must be one of the following |
||||
* constants, optionally ORed with other flags. |
||||
* @{ |
||||
*/ |
||||
#define AVIO_FLAG_READ 1 /**< read-only */ |
||||
#define AVIO_FLAG_WRITE 2 /**< write-only */ |
||||
#define AVIO_FLAG_READ_WRITE (AVIO_FLAG_READ|AVIO_FLAG_WRITE) /**< read-write pseudo flag */ |
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
/**
|
||||
* Use non-blocking mode. |
||||
* If this flag is set, operations on the context will return |
||||
* AVERROR(EAGAIN) if they can not be performed immediately. |
||||
* If this flag is not set, operations on the context will never return |
||||
* AVERROR(EAGAIN). |
||||
* Note that this flag does not affect the opening/connecting of the |
||||
* context. Connecting a protocol will always block if necessary (e.g. on |
||||
* network protocols) but never hang (e.g. on busy devices). |
||||
* Warning: non-blocking protocols is work-in-progress; this flag may be |
||||
* silently ignored. |
||||
*/ |
||||
#define AVIO_FLAG_NONBLOCK 8 |
||||
|
||||
/**
|
||||
* Use direct mode. |
||||
* avio_read and avio_write should if possible be satisfied directly |
||||
* instead of going through a buffer, and avio_seek will always |
||||
* call the underlying seek function directly. |
||||
*/ |
||||
#define AVIO_FLAG_DIRECT 0x8000 |
||||
|
||||
/**
|
||||
* Create and initialize a AVIOContext for accessing the |
||||
* resource indicated by url. |
||||
* @note When the resource indicated by url has been opened in |
||||
* read+write mode, the AVIOContext can be used only for writing. |
||||
* |
||||
* @param s Used to return the pointer to the created AVIOContext. |
||||
* In case of failure the pointed to value is set to NULL. |
||||
* @param flags flags which control how the resource indicated by url |
||||
* is to be opened |
||||
* @return 0 in case of success, a negative value corresponding to an |
||||
* AVERROR code in case of failure |
||||
*/ |
||||
int avio_open(AVIOContext **s, const char *url, int flags); |
||||
|
||||
/**
|
||||
* Create and initialize a AVIOContext for accessing the |
||||
* resource indicated by url. |
||||
* @note When the resource indicated by url has been opened in |
||||
* read+write mode, the AVIOContext can be used only for writing. |
||||
* |
||||
* @param s Used to return the pointer to the created AVIOContext. |
||||
* In case of failure the pointed to value is set to NULL. |
||||
* @param flags flags which control how the resource indicated by url |
||||
* is to be opened |
||||
* @param int_cb an interrupt callback to be used at the protocols level |
||||
* @param options A dictionary filled with protocol-private options. On return |
||||
* this parameter will be destroyed and replaced with a dict containing options |
||||
* that were not found. May be NULL. |
||||
* @return 0 in case of success, a negative value corresponding to an |
||||
* AVERROR code in case of failure |
||||
*/ |
||||
int avio_open2(AVIOContext **s, const char *url, int flags, |
||||
const AVIOInterruptCB *int_cb, AVDictionary **options); |
||||
|
||||
/**
|
||||
* Close the resource accessed by the AVIOContext s and free it. |
||||
* This function can only be used if s was opened by avio_open(). |
||||
* |
||||
* The internal buffer is automatically flushed before closing the |
||||
* resource. |
||||
* |
||||
* @return 0 on success, an AVERROR < 0 on error. |
||||
* @see avio_closep |
||||
*/ |
||||
int avio_close(AVIOContext *s); |
||||
|
||||
/**
|
||||
* Close the resource accessed by the AVIOContext *s, free it |
||||
* and set the pointer pointing to it to NULL. |
||||
* This function can only be used if s was opened by avio_open(). |
||||
* |
||||
* The internal buffer is automatically flushed before closing the |
||||
* resource. |
||||
* |
||||
* @return 0 on success, an AVERROR < 0 on error. |
||||
* @see avio_close |
||||
*/ |
||||
int avio_closep(AVIOContext **s); |
||||
|
||||
|
||||
/**
|
||||
* Open a write only memory stream. |
||||
* |
||||
* @param s new IO context |
||||
* @return zero if no error. |
||||
*/ |
||||
int avio_open_dyn_buf(AVIOContext **s); |
||||
|
||||
/**
|
||||
* Return the written size and a pointer to the buffer. The buffer |
||||
* must be freed with av_free(). |
||||
* Padding of FF_INPUT_BUFFER_PADDING_SIZE is added to the buffer. |
||||
* |
||||
* @param s IO context |
||||
* @param pbuffer pointer to a byte buffer |
||||
* @return the length of the byte buffer |
||||
*/ |
||||
int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer); |
||||
|
||||
/**
|
||||
* Iterate through names of available protocols. |
||||
* |
||||
* @param opaque A private pointer representing current protocol. |
||||
* It must be a pointer to NULL on first iteration and will |
||||
* be updated by successive calls to avio_enum_protocols. |
||||
* @param output If set to 1, iterate over output protocols, |
||||
* otherwise over input protocols. |
||||
* |
||||
* @return A static string containing the name of current protocol or NULL |
||||
*/ |
||||
const char *avio_enum_protocols(void **opaque, int output); |
||||
|
||||
/**
|
||||
* Pause and resume playing - only meaningful if using a network streaming |
||||
* protocol (e.g. MMS). |
||||
* @param pause 1 for pause, 0 for resume |
||||
*/ |
||||
int avio_pause(AVIOContext *h, int pause); |
||||
|
||||
/**
|
||||
* Seek to a given timestamp relative to some component stream. |
||||
* Only meaningful if using a network streaming protocol (e.g. MMS.). |
||||
* @param stream_index The stream index that the timestamp is relative to. |
||||
* If stream_index is (-1) the timestamp should be in AV_TIME_BASE |
||||
* units from the beginning of the presentation. |
||||
* If a stream_index >= 0 is used and the protocol does not support |
||||
* seeking based on component streams, the call will fail. |
||||
* @param timestamp timestamp in AVStream.time_base units |
||||
* or if there is no stream specified then in AV_TIME_BASE units. |
||||
* @param flags Optional combination of AVSEEK_FLAG_BACKWARD, AVSEEK_FLAG_BYTE |
||||
* and AVSEEK_FLAG_ANY. The protocol may silently ignore |
||||
* AVSEEK_FLAG_BACKWARD and AVSEEK_FLAG_ANY, but AVSEEK_FLAG_BYTE will |
||||
* fail if used and not supported. |
||||
* @return >= 0 on success |
||||
* @see AVInputFormat::read_seek |
||||
*/ |
||||
int64_t avio_seek_time(AVIOContext *h, int stream_index, |
||||
int64_t timestamp, int flags); |
||||
|
||||
#endif /* AVFORMAT_AVIO_H */ |
@ -1,82 +0,0 @@ |
||||
/*
|
||||
* Version macros. |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVFORMAT_VERSION_H |
||||
#define AVFORMAT_VERSION_H |
||||
|
||||
/**
|
||||
* @file |
||||
* @ingroup libavf |
||||
* Libavformat version macros |
||||
*/ |
||||
|
||||
#include "libavutil/avutil.h" |
||||
|
||||
#define LIBAVFORMAT_VERSION_MAJOR 55 |
||||
#define LIBAVFORMAT_VERSION_MINOR 12 |
||||
#define LIBAVFORMAT_VERSION_MICRO 100 |
||||
|
||||
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \ |
||||
LIBAVFORMAT_VERSION_MINOR, \
|
||||
LIBAVFORMAT_VERSION_MICRO) |
||||
#define LIBAVFORMAT_VERSION AV_VERSION(LIBAVFORMAT_VERSION_MAJOR, \ |
||||
LIBAVFORMAT_VERSION_MINOR, \
|
||||
LIBAVFORMAT_VERSION_MICRO) |
||||
#define LIBAVFORMAT_BUILD LIBAVFORMAT_VERSION_INT |
||||
|
||||
#define LIBAVFORMAT_IDENT "Lavf" AV_STRINGIFY(LIBAVFORMAT_VERSION) |
||||
|
||||
/**
|
||||
* FF_API_* defines may be placed below to indicate public API that will be |
||||
* dropped at a future version bump. The defines themselves are not part of |
||||
* the public API and may change, break or disappear at any time. |
||||
*/ |
||||
|
||||
#ifndef FF_API_OLD_AVIO |
||||
#define FF_API_OLD_AVIO (LIBAVFORMAT_VERSION_MAJOR < 55) |
||||
#endif |
||||
#ifndef FF_API_PKT_DUMP |
||||
#define FF_API_PKT_DUMP (LIBAVFORMAT_VERSION_MAJOR < 54) |
||||
#endif |
||||
#ifndef FF_API_ALLOC_OUTPUT_CONTEXT |
||||
#define FF_API_ALLOC_OUTPUT_CONTEXT (LIBAVFORMAT_VERSION_MAJOR < 56) |
||||
#endif |
||||
#ifndef FF_API_FORMAT_PARAMETERS |
||||
#define FF_API_FORMAT_PARAMETERS (LIBAVFORMAT_VERSION_MAJOR < 56) |
||||
#endif |
||||
#ifndef FF_API_NEW_STREAM |
||||
#define FF_API_NEW_STREAM (LIBAVFORMAT_VERSION_MAJOR < 56) |
||||
#endif |
||||
#ifndef FF_API_SET_PTS_INFO |
||||
#define FF_API_SET_PTS_INFO (LIBAVFORMAT_VERSION_MAJOR < 56) |
||||
#endif |
||||
#ifndef FF_API_CLOSE_INPUT_FILE |
||||
#define FF_API_CLOSE_INPUT_FILE (LIBAVFORMAT_VERSION_MAJOR < 56) |
||||
#endif |
||||
#ifndef FF_API_READ_PACKET |
||||
#define FF_API_READ_PACKET (LIBAVFORMAT_VERSION_MAJOR < 56) |
||||
#endif |
||||
#ifndef FF_API_ASS_SSA |
||||
#define FF_API_ASS_SSA (LIBAVFORMAT_VERSION_MAJOR < 56) |
||||
#endif |
||||
#ifndef FF_API_R_FRAME_RATE |
||||
#define FF_API_R_FRAME_RATE 1 |
||||
#endif |
||||
#endif /* AVFORMAT_VERSION_H */ |
@ -1,52 +0,0 @@ |
||||
/*
|
||||
* copyright (c) 2006 Mans Rullgard |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_ADLER32_H |
||||
#define AVUTIL_ADLER32_H |
||||
|
||||
#include <stdint.h> |
||||
#include "attributes.h" |
||||
|
||||
/**
|
||||
* @defgroup lavu_adler32 Adler32 |
||||
* @ingroup lavu_crypto |
||||
* @{ |
||||
*/ |
||||
|
||||
/**
|
||||
* Calculate the Adler32 checksum of a buffer. |
||||
* |
||||
* Passing the return value to a subsequent av_adler32_update() call |
||||
* allows the checksum of multiple buffers to be calculated as though |
||||
* they were concatenated. |
||||
* |
||||
* @param adler initial checksum value |
||||
* @param buf pointer to input buffer |
||||
* @param len size of input buffer |
||||
* @return updated checksum |
||||
*/ |
||||
unsigned long av_adler32_update(unsigned long adler, const uint8_t *buf, |
||||
unsigned int len) av_pure; |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_ADLER32_H */ |
@ -1,65 +0,0 @@ |
||||
/*
|
||||
* copyright (c) 2007 Michael Niedermayer <michaelni@gmx.at> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_AES_H |
||||
#define AVUTIL_AES_H |
||||
|
||||
#include <stdint.h> |
||||
|
||||
#include "attributes.h" |
||||
#include "version.h" |
||||
|
||||
/**
|
||||
* @defgroup lavu_aes AES |
||||
* @ingroup lavu_crypto |
||||
* @{ |
||||
*/ |
||||
|
||||
extern const int av_aes_size; |
||||
|
||||
struct AVAES; |
||||
|
||||
/**
|
||||
* Allocate an AVAES context. |
||||
*/ |
||||
struct AVAES *av_aes_alloc(void); |
||||
|
||||
/**
|
||||
* Initialize an AVAES context. |
||||
* @param key_bits 128, 192 or 256 |
||||
* @param decrypt 0 for encryption, 1 for decryption |
||||
*/ |
||||
int av_aes_init(struct AVAES *a, const uint8_t *key, int key_bits, int decrypt); |
||||
|
||||
/**
|
||||
* Encrypt or decrypt a buffer using a previously initialized context. |
||||
* @param count number of 16 byte blocks |
||||
* @param dst destination array, can be equal to src |
||||
* @param src source array, can be equal to dst |
||||
* @param iv initialization vector for CBC mode, if NULL then ECB will be used |
||||
* @param decrypt 0 for encryption, 1 for decryption |
||||
*/ |
||||
void av_aes_crypt(struct AVAES *a, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_AES_H */ |
@ -1,154 +0,0 @@ |
||||
/*
|
||||
* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
/**
|
||||
* @file |
||||
* Macro definitions for various function/variable attributes |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_ATTRIBUTES_H |
||||
#define AVUTIL_ATTRIBUTES_H |
||||
|
||||
#ifdef __GNUC__ |
||||
# define AV_GCC_VERSION_AT_LEAST(x,y) (__GNUC__ > x || __GNUC__ == x && __GNUC_MINOR__ >= y) |
||||
#else |
||||
# define AV_GCC_VERSION_AT_LEAST(x,y) 0 |
||||
#endif |
||||
|
||||
#ifndef av_always_inline |
||||
#if AV_GCC_VERSION_AT_LEAST(3,1) |
||||
# define av_always_inline __attribute__((always_inline)) inline |
||||
#elif defined(_MSC_VER) |
||||
# define av_always_inline __forceinline |
||||
#else |
||||
# define av_always_inline inline |
||||
#endif |
||||
#endif |
||||
|
||||
#ifndef av_extern_inline |
||||
#if defined(__ICL) && __ICL >= 1210 || defined(__GNUC_STDC_INLINE__) |
||||
# define av_extern_inline extern inline |
||||
#else |
||||
# define av_extern_inline inline |
||||
#endif |
||||
#endif |
||||
|
||||
#if AV_GCC_VERSION_AT_LEAST(3,1) |
||||
# define av_noinline __attribute__((noinline)) |
||||
#else |
||||
# define av_noinline |
||||
#endif |
||||
|
||||
#if AV_GCC_VERSION_AT_LEAST(3,1) |
||||
# define av_pure __attribute__((pure)) |
||||
#else |
||||
# define av_pure |
||||
#endif |
||||
|
||||
#ifndef av_restrict |
||||
#define av_restrict restrict |
||||
#endif |
||||
|
||||
#if AV_GCC_VERSION_AT_LEAST(2,6) |
||||
# define av_const __attribute__((const)) |
||||
#else |
||||
# define av_const |
||||
#endif |
||||
|
||||
#if AV_GCC_VERSION_AT_LEAST(4,3) |
||||
# define av_cold __attribute__((cold)) |
||||
#else |
||||
# define av_cold |
||||
#endif |
||||
|
||||
#if AV_GCC_VERSION_AT_LEAST(4,1) |
||||
# define av_flatten __attribute__((flatten)) |
||||
#else |
||||
# define av_flatten |
||||
#endif |
||||
|
||||
#if AV_GCC_VERSION_AT_LEAST(3,1) |
||||
# define attribute_deprecated __attribute__((deprecated)) |
||||
#else |
||||
# define attribute_deprecated |
||||
#endif |
||||
|
||||
/**
|
||||
* Disable warnings about deprecated features |
||||
* This is useful for sections of code kept for backward compatibility and |
||||
* scheduled for removal. |
||||
*/ |
||||
#ifndef AV_NOWARN_DEPRECATED |
||||
#if AV_GCC_VERSION_AT_LEAST(4,6) |
||||
# define AV_NOWARN_DEPRECATED(code) \ |
||||
_Pragma("GCC diagnostic push") \
|
||||
_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") \
|
||||
code \
|
||||
_Pragma("GCC diagnostic pop") |
||||
#else |
||||
# define AV_NOWARN_DEPRECATED(code) code |
||||
#endif |
||||
#endif |
||||
|
||||
|
||||
#if defined(__GNUC__) |
||||
# define av_unused __attribute__((unused)) |
||||
#else |
||||
# define av_unused |
||||
#endif |
||||
|
||||
/**
|
||||
* Mark a variable as used and prevent the compiler from optimizing it |
||||
* away. This is useful for variables accessed only from inline |
||||
* assembler without the compiler being aware. |
||||
*/ |
||||
#if AV_GCC_VERSION_AT_LEAST(3,1) |
||||
# define av_used __attribute__((used)) |
||||
#else |
||||
# define av_used |
||||
#endif |
||||
|
||||
#if AV_GCC_VERSION_AT_LEAST(3,3) |
||||
# define av_alias __attribute__((may_alias)) |
||||
#else |
||||
# define av_alias |
||||
#endif |
||||
|
||||
#if defined(__GNUC__) && !defined(__INTEL_COMPILER) && !defined(__clang__) |
||||
# define av_uninit(x) x=x |
||||
#else |
||||
# define av_uninit(x) x |
||||
#endif |
||||
|
||||
#ifdef __GNUC__ |
||||
# define av_builtin_constant_p __builtin_constant_p |
||||
# define av_printf_format(fmtpos, attrpos) __attribute__((__format__(__printf__, fmtpos, attrpos))) |
||||
#else |
||||
# define av_builtin_constant_p(x) 0 |
||||
# define av_printf_format(fmtpos, attrpos) |
||||
#endif |
||||
|
||||
#if AV_GCC_VERSION_AT_LEAST(2,5) |
||||
# define av_noreturn __attribute__((noreturn)) |
||||
#else |
||||
# define av_noreturn |
||||
#endif |
||||
|
||||
#endif /* AVUTIL_ATTRIBUTES_H */ |
@ -1,149 +0,0 @@ |
||||
/*
|
||||
* Audio FIFO |
||||
* Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com> |
||||
* |
||||
* This file is part of Libav. |
||||
* |
||||
* Libav is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* Libav is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with Libav; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
/**
|
||||
* @file |
||||
* Audio FIFO Buffer |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_AUDIO_FIFO_H |
||||
#define AVUTIL_AUDIO_FIFO_H |
||||
|
||||
#include "avutil.h" |
||||
#include "fifo.h" |
||||
#include "samplefmt.h" |
||||
|
||||
/**
|
||||
* @addtogroup lavu_audio |
||||
* @{ |
||||
*/ |
||||
|
||||
/**
|
||||
* Context for an Audio FIFO Buffer. |
||||
* |
||||
* - Operates at the sample level rather than the byte level. |
||||
* - Supports multiple channels with either planar or packed sample format. |
||||
* - Automatic reallocation when writing to a full buffer. |
||||
*/ |
||||
typedef struct AVAudioFifo AVAudioFifo; |
||||
|
||||
/**
|
||||
* Free an AVAudioFifo. |
||||
* |
||||
* @param af AVAudioFifo to free |
||||
*/ |
||||
void av_audio_fifo_free(AVAudioFifo *af); |
||||
|
||||
/**
|
||||
* Allocate an AVAudioFifo. |
||||
* |
||||
* @param sample_fmt sample format |
||||
* @param channels number of channels |
||||
* @param nb_samples initial allocation size, in samples |
||||
* @return newly allocated AVAudioFifo, or NULL on error |
||||
*/ |
||||
AVAudioFifo *av_audio_fifo_alloc(enum AVSampleFormat sample_fmt, int channels, |
||||
int nb_samples); |
||||
|
||||
/**
|
||||
* Reallocate an AVAudioFifo. |
||||
* |
||||
* @param af AVAudioFifo to reallocate |
||||
* @param nb_samples new allocation size, in samples |
||||
* @return 0 if OK, or negative AVERROR code on failure |
||||
*/ |
||||
int av_audio_fifo_realloc(AVAudioFifo *af, int nb_samples); |
||||
|
||||
/**
|
||||
* Write data to an AVAudioFifo. |
||||
* |
||||
* The AVAudioFifo will be reallocated automatically if the available space |
||||
* is less than nb_samples. |
||||
* |
||||
* @see enum AVSampleFormat |
||||
* The documentation for AVSampleFormat describes the data layout. |
||||
* |
||||
* @param af AVAudioFifo to write to |
||||
* @param data audio data plane pointers |
||||
* @param nb_samples number of samples to write |
||||
* @return number of samples actually written, or negative AVERROR |
||||
* code on failure. If successful, the number of samples |
||||
* actually written will always be nb_samples. |
||||
*/ |
||||
int av_audio_fifo_write(AVAudioFifo *af, void **data, int nb_samples); |
||||
|
||||
/**
|
||||
* Read data from an AVAudioFifo. |
||||
* |
||||
* @see enum AVSampleFormat |
||||
* The documentation for AVSampleFormat describes the data layout. |
||||
* |
||||
* @param af AVAudioFifo to read from |
||||
* @param data audio data plane pointers |
||||
* @param nb_samples number of samples to read |
||||
* @return number of samples actually read, or negative AVERROR code |
||||
* on failure. The number of samples actually read will not |
||||
* be greater than nb_samples, and will only be less than |
||||
* nb_samples if av_audio_fifo_size is less than nb_samples. |
||||
*/ |
||||
int av_audio_fifo_read(AVAudioFifo *af, void **data, int nb_samples); |
||||
|
||||
/**
|
||||
* Drain data from an AVAudioFifo. |
||||
* |
||||
* Removes the data without reading it. |
||||
* |
||||
* @param af AVAudioFifo to drain |
||||
* @param nb_samples number of samples to drain |
||||
* @return 0 if OK, or negative AVERROR code on failure |
||||
*/ |
||||
int av_audio_fifo_drain(AVAudioFifo *af, int nb_samples); |
||||
|
||||
/**
|
||||
* Reset the AVAudioFifo buffer. |
||||
* |
||||
* This empties all data in the buffer. |
||||
* |
||||
* @param af AVAudioFifo to reset |
||||
*/ |
||||
void av_audio_fifo_reset(AVAudioFifo *af); |
||||
|
||||
/**
|
||||
* Get the current number of samples in the AVAudioFifo available for reading. |
||||
* |
||||
* @param af the AVAudioFifo to query |
||||
* @return number of samples available for reading |
||||
*/ |
||||
int av_audio_fifo_size(AVAudioFifo *af); |
||||
|
||||
/**
|
||||
* Get the current number of samples in the AVAudioFifo available for writing. |
||||
* |
||||
* @param af the AVAudioFifo to query |
||||
* @return number of samples available for writing |
||||
*/ |
||||
int av_audio_fifo_space(AVAudioFifo *af); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_AUDIO_FIFO_H */ |
@ -1,6 +0,0 @@ |
||||
|
||||
#include "version.h" |
||||
|
||||
#if FF_API_AUDIOCONVERT |
||||
#include "channel_layout.h" |
||||
#endif |
@ -1,66 +0,0 @@ |
||||
/*
|
||||
* copyright (c) 2010 Michael Niedermayer <michaelni@gmx.at> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
/**
|
||||
* @file |
||||
* simple assert() macros that are a bit more flexible than ISO C assert(). |
||||
* @author Michael Niedermayer <michaelni@gmx.at> |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_AVASSERT_H |
||||
#define AVUTIL_AVASSERT_H |
||||
|
||||
#include <stdlib.h> |
||||
#include "avutil.h" |
||||
#include "log.h" |
||||
|
||||
/**
|
||||
* assert() equivalent, that is always enabled. |
||||
*/ |
||||
#define av_assert0(cond) do { \ |
||||
if (!(cond)) { \
|
||||
av_log(NULL, AV_LOG_PANIC, "Assertion %s failed at %s:%d\n", \
|
||||
AV_STRINGIFY(cond), __FILE__, __LINE__); \
|
||||
abort(); \
|
||||
} \
|
||||
} while (0) |
||||
|
||||
|
||||
/**
|
||||
* assert() equivalent, that does not lie in speed critical code. |
||||
* These asserts() thus can be enabled without fearing speedloss. |
||||
*/ |
||||
#if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 0 |
||||
#define av_assert1(cond) av_assert0(cond) |
||||
#else |
||||
#define av_assert1(cond) ((void)0) |
||||
#endif |
||||
|
||||
|
||||
/**
|
||||
* assert() equivalent, that does lie in speed critical code. |
||||
*/ |
||||
#if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 1 |
||||
#define av_assert2(cond) av_assert0(cond) |
||||
#else |
||||
#define av_assert2(cond) ((void)0) |
||||
#endif |
||||
|
||||
#endif /* AVUTIL_AVASSERT_H */ |
@ -1,8 +0,0 @@ |
||||
/* Generated by ffconf */ |
||||
#ifndef AVUTIL_AVCONFIG_H |
||||
#define AVUTIL_AVCONFIG_H |
||||
#define AV_HAVE_BIGENDIAN 0 |
||||
#define AV_HAVE_FAST_UNALIGNED 1 |
||||
#define AV_HAVE_INCOMPATIBLE_LIBAV_ABI 0 |
||||
#define AV_HAVE_INCOMPATIBLE_FORK_ABI 0 |
||||
#endif /* AVUTIL_AVCONFIG_H */ |
@ -1,302 +0,0 @@ |
||||
/*
|
||||
* Copyright (c) 2007 Mans Rullgard |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_AVSTRING_H |
||||
#define AVUTIL_AVSTRING_H |
||||
|
||||
#include <stddef.h> |
||||
#include "attributes.h" |
||||
|
||||
/**
|
||||
* @addtogroup lavu_string |
||||
* @{ |
||||
*/ |
||||
|
||||
/**
|
||||
* Return non-zero if pfx is a prefix of str. If it is, *ptr is set to |
||||
* the address of the first character in str after the prefix. |
||||
* |
||||
* @param str input string |
||||
* @param pfx prefix to test |
||||
* @param ptr updated if the prefix is matched inside str |
||||
* @return non-zero if the prefix matches, zero otherwise |
||||
*/ |
||||
int av_strstart(const char *str, const char *pfx, const char **ptr); |
||||
|
||||
/**
|
||||
* Return non-zero if pfx is a prefix of str independent of case. If |
||||
* it is, *ptr is set to the address of the first character in str |
||||
* after the prefix. |
||||
* |
||||
* @param str input string |
||||
* @param pfx prefix to test |
||||
* @param ptr updated if the prefix is matched inside str |
||||
* @return non-zero if the prefix matches, zero otherwise |
||||
*/ |
||||
int av_stristart(const char *str, const char *pfx, const char **ptr); |
||||
|
||||
/**
|
||||
* Locate the first case-independent occurrence in the string haystack |
||||
* of the string needle. A zero-length string needle is considered to |
||||
* match at the start of haystack. |
||||
* |
||||
* This function is a case-insensitive version of the standard strstr(). |
||||
* |
||||
* @param haystack string to search in |
||||
* @param needle string to search for |
||||
* @return pointer to the located match within haystack |
||||
* or a null pointer if no match |
||||
*/ |
||||
char *av_stristr(const char *haystack, const char *needle); |
||||
|
||||
/**
|
||||
* Locate the first occurrence of the string needle in the string haystack |
||||
* where not more than hay_length characters are searched. A zero-length |
||||
* string needle is considered to match at the start of haystack. |
||||
* |
||||
* This function is a length-limited version of the standard strstr(). |
||||
* |
||||
* @param haystack string to search in |
||||
* @param needle string to search for |
||||
* @param hay_length length of string to search in |
||||
* @return pointer to the located match within haystack |
||||
* or a null pointer if no match |
||||
*/ |
||||
char *av_strnstr(const char *haystack, const char *needle, size_t hay_length); |
||||
|
||||
/**
|
||||
* Copy the string src to dst, but no more than size - 1 bytes, and |
||||
* null-terminate dst. |
||||
* |
||||
* This function is the same as BSD strlcpy(). |
||||
* |
||||
* @param dst destination buffer |
||||
* @param src source string |
||||
* @param size size of destination buffer |
||||
* @return the length of src |
||||
* |
||||
* @warning since the return value is the length of src, src absolutely |
||||
* _must_ be a properly 0-terminated string, otherwise this will read beyond |
||||
* the end of the buffer and possibly crash. |
||||
*/ |
||||
size_t av_strlcpy(char *dst, const char *src, size_t size); |
||||
|
||||
/**
|
||||
* Append the string src to the string dst, but to a total length of |
||||
* no more than size - 1 bytes, and null-terminate dst. |
||||
* |
||||
* This function is similar to BSD strlcat(), but differs when |
||||
* size <= strlen(dst). |
||||
* |
||||
* @param dst destination buffer |
||||
* @param src source string |
||||
* @param size size of destination buffer |
||||
* @return the total length of src and dst |
||||
* |
||||
* @warning since the return value use the length of src and dst, these |
||||
* absolutely _must_ be a properly 0-terminated strings, otherwise this |
||||
* will read beyond the end of the buffer and possibly crash. |
||||
*/ |
||||
size_t av_strlcat(char *dst, const char *src, size_t size); |
||||
|
||||
/**
|
||||
* Append output to a string, according to a format. Never write out of |
||||
* the destination buffer, and always put a terminating 0 within |
||||
* the buffer. |
||||
* @param dst destination buffer (string to which the output is |
||||
* appended) |
||||
* @param size total size of the destination buffer |
||||
* @param fmt printf-compatible format string, specifying how the |
||||
* following parameters are used |
||||
* @return the length of the string that would have been generated |
||||
* if enough space had been available |
||||
*/ |
||||
size_t av_strlcatf(char *dst, size_t size, const char *fmt, ...) av_printf_format(3, 4); |
||||
|
||||
/**
|
||||
* Print arguments following specified format into a large enough auto |
||||
* allocated buffer. It is similar to GNU asprintf(). |
||||
* @param fmt printf-compatible format string, specifying how the |
||||
* following parameters are used. |
||||
* @return the allocated string |
||||
* @note You have to free the string yourself with av_free(). |
||||
*/ |
||||
char *av_asprintf(const char *fmt, ...) av_printf_format(1, 2); |
||||
|
||||
/**
|
||||
* Convert a number to a av_malloced string. |
||||
*/ |
||||
char *av_d2str(double d); |
||||
|
||||
/**
|
||||
* Unescape the given string until a non escaped terminating char, |
||||
* and return the token corresponding to the unescaped string. |
||||
* |
||||
* The normal \ and ' escaping is supported. Leading and trailing |
||||
* whitespaces are removed, unless they are escaped with '\' or are |
||||
* enclosed between ''. |
||||
* |
||||
* @param buf the buffer to parse, buf will be updated to point to the |
||||
* terminating char |
||||
* @param term a 0-terminated list of terminating chars |
||||
* @return the malloced unescaped string, which must be av_freed by |
||||
* the user, NULL in case of allocation failure |
||||
*/ |
||||
char *av_get_token(const char **buf, const char *term); |
||||
|
||||
/**
|
||||
* Split the string into several tokens which can be accessed by |
||||
* successive calls to av_strtok(). |
||||
* |
||||
* A token is defined as a sequence of characters not belonging to the |
||||
* set specified in delim. |
||||
* |
||||
* On the first call to av_strtok(), s should point to the string to |
||||
* parse, and the value of saveptr is ignored. In subsequent calls, s |
||||
* should be NULL, and saveptr should be unchanged since the previous |
||||
* call. |
||||
* |
||||
* This function is similar to strtok_r() defined in POSIX.1. |
||||
* |
||||
* @param s the string to parse, may be NULL |
||||
* @param delim 0-terminated list of token delimiters, must be non-NULL |
||||
* @param saveptr user-provided pointer which points to stored |
||||
* information necessary for av_strtok() to continue scanning the same |
||||
* string. saveptr is updated to point to the next character after the |
||||
* first delimiter found, or to NULL if the string was terminated |
||||
* @return the found token, or NULL when no token is found |
||||
*/ |
||||
char *av_strtok(char *s, const char *delim, char **saveptr); |
||||
|
||||
/**
|
||||
* Locale-independent conversion of ASCII isdigit. |
||||
*/ |
||||
int av_isdigit(int c); |
||||
|
||||
/**
|
||||
* Locale-independent conversion of ASCII isgraph. |
||||
*/ |
||||
int av_isgraph(int c); |
||||
|
||||
/**
|
||||
* Locale-independent conversion of ASCII isspace. |
||||
*/ |
||||
int av_isspace(int c); |
||||
|
||||
/**
|
||||
* Locale-independent conversion of ASCII characters to uppercase. |
||||
*/ |
||||
static inline int av_toupper(int c) |
||||
{ |
||||
if (c >= 'a' && c <= 'z') |
||||
c ^= 0x20; |
||||
return c; |
||||
} |
||||
|
||||
/**
|
||||
* Locale-independent conversion of ASCII characters to lowercase. |
||||
*/ |
||||
static inline int av_tolower(int c) |
||||
{ |
||||
if (c >= 'A' && c <= 'Z') |
||||
c ^= 0x20; |
||||
return c; |
||||
} |
||||
|
||||
/**
|
||||
* Locale-independent conversion of ASCII isxdigit. |
||||
*/ |
||||
int av_isxdigit(int c); |
||||
|
||||
/**
|
||||
* Locale-independent case-insensitive compare. |
||||
* @note This means only ASCII-range characters are case-insensitive |
||||
*/ |
||||
int av_strcasecmp(const char *a, const char *b); |
||||
|
||||
/**
|
||||
* Locale-independent case-insensitive compare. |
||||
* @note This means only ASCII-range characters are case-insensitive |
||||
*/ |
||||
int av_strncasecmp(const char *a, const char *b, size_t n); |
||||
|
||||
|
||||
/**
|
||||
* Thread safe basename. |
||||
* @param path the path, on DOS both \ and / are considered separators. |
||||
* @return pointer to the basename substring. |
||||
*/ |
||||
const char *av_basename(const char *path); |
||||
|
||||
/**
|
||||
* Thread safe dirname. |
||||
* @param path the path, on DOS both \ and / are considered separators. |
||||
* @return the path with the separator replaced by the string terminator or ".". |
||||
* @note the function may change the input string. |
||||
*/ |
||||
const char *av_dirname(char *path); |
||||
|
||||
enum AVEscapeMode { |
||||
AV_ESCAPE_MODE_AUTO, ///< Use auto-selected escaping mode.
|
||||
AV_ESCAPE_MODE_BACKSLASH, ///< Use backslash escaping.
|
||||
AV_ESCAPE_MODE_QUOTE, ///< Use single-quote escaping.
|
||||
}; |
||||
|
||||
/**
|
||||
* Consider spaces special and escape them even in the middle of the |
||||
* string. |
||||
* |
||||
* This is equivalent to adding the whitespace characters to the special |
||||
* characters lists, except it is guaranteed to use the exact same list |
||||
* of whitespace characters as the rest of libavutil. |
||||
*/ |
||||
#define AV_ESCAPE_FLAG_WHITESPACE 0x01 |
||||
|
||||
/**
|
||||
* Escape only specified special characters. |
||||
* Without this flag, escape also any characters that may be considered |
||||
* special by av_get_token(), such as the single quote. |
||||
*/ |
||||
#define AV_ESCAPE_FLAG_STRICT 0x02 |
||||
|
||||
/**
|
||||
* Escape string in src, and put the escaped string in an allocated |
||||
* string in *dst, which must be freed with av_free(). |
||||
* |
||||
* @param dst pointer where an allocated string is put |
||||
* @param src string to escape, must be non-NULL |
||||
* @param special_chars string containing the special characters which |
||||
* need to be escaped, can be NULL |
||||
* @param mode escape mode to employ, see AV_ESCAPE_MODE_* macros. |
||||
* Any unknown value for mode will be considered equivalent to |
||||
* AV_ESCAPE_MODE_BACKSLASH, but this behaviour can change without |
||||
* notice. |
||||
* @param flags flags which control how to escape, see AV_ESCAPE_FLAG_ macros |
||||
* @return the length of the allocated string, or a negative error code in case of error |
||||
* @see av_bprint_escape() |
||||
*/ |
||||
int av_escape(char **dst, const char *src, const char *special_chars, |
||||
enum AVEscapeMode mode, int flags); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_AVSTRING_H */ |
@ -1,314 +0,0 @@ |
||||
/*
|
||||
* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_AVUTIL_H |
||||
#define AVUTIL_AVUTIL_H |
||||
|
||||
/**
|
||||
* @file |
||||
* external API header |
||||
*/ |
||||
|
||||
/**
|
||||
* @mainpage |
||||
* |
||||
* @section ffmpeg_intro Introduction |
||||
* |
||||
* This document describes the usage of the different libraries |
||||
* provided by FFmpeg. |
||||
* |
||||
* @li @ref libavc "libavcodec" encoding/decoding library |
||||
* @li @ref lavfi "libavfilter" graph-based frame editing library |
||||
* @li @ref libavf "libavformat" I/O and muxing/demuxing library |
||||
* @li @ref lavd "libavdevice" special devices muxing/demuxing library |
||||
* @li @ref lavu "libavutil" common utility library |
||||
* @li @ref lswr "libswresample" audio resampling, format conversion and mixing |
||||
* @li @ref lpp "libpostproc" post processing library |
||||
* @li @ref lsws "libswscale" color conversion and scaling library |
||||
* |
||||
* @section ffmpeg_versioning Versioning and compatibility |
||||
* |
||||
* Each of the FFmpeg libraries contains a version.h header, which defines a |
||||
* major, minor and micro version number with the |
||||
* <em>LIBRARYNAME_VERSION_{MAJOR,MINOR,MICRO}</em> macros. The major version |
||||
* number is incremented with backward incompatible changes - e.g. removing |
||||
* parts of the public API, reordering public struct members, etc. The minor |
||||
* version number is incremented for backward compatible API changes or major |
||||
* new features - e.g. adding a new public function or a new decoder. The micro |
||||
* version number is incremented for smaller changes that a calling program |
||||
* might still want to check for - e.g. changing behavior in a previously |
||||
* unspecified situation. |
||||
* |
||||
* FFmpeg guarantees backward API and ABI compatibility for each library as long |
||||
* as its major version number is unchanged. This means that no public symbols |
||||
* will be removed or renamed. Types and names of the public struct members and |
||||
* values of public macros and enums will remain the same (unless they were |
||||
* explicitly declared as not part of the public API). Documented behavior will |
||||
* not change. |
||||
* |
||||
* In other words, any correct program that works with a given FFmpeg snapshot |
||||
* should work just as well without any changes with any later snapshot with the |
||||
* same major versions. This applies to both rebuilding the program against new |
||||
* FFmpeg versions or to replacing the dynamic FFmpeg libraries that a program |
||||
* links against. |
||||
* |
||||
* However, new public symbols may be added and new members may be appended to |
||||
* public structs whose size is not part of public ABI (most public structs in |
||||
* FFmpeg). New macros and enum values may be added. Behavior in undocumented |
||||
* situations may change slightly (and be documented). All those are accompanied |
||||
* by an entry in doc/APIchanges and incrementing either the minor or micro |
||||
* version number. |
||||
*/ |
||||
|
||||
/**
|
||||
* @defgroup lavu Common utility functions |
||||
* |
||||
* @brief |
||||
* libavutil contains the code shared across all the other FFmpeg |
||||
* libraries |
||||
* |
||||
* @note In order to use the functions provided by avutil you must include |
||||
* the specific header. |
||||
* |
||||
* @{ |
||||
* |
||||
* @defgroup lavu_crypto Crypto and Hashing |
||||
* |
||||
* @{ |
||||
* @} |
||||
* |
||||
* @defgroup lavu_math Maths |
||||
* @{ |
||||
* |
||||
* @} |
||||
* |
||||
* @defgroup lavu_string String Manipulation |
||||
* |
||||
* @{ |
||||
* |
||||
* @} |
||||
* |
||||
* @defgroup lavu_mem Memory Management |
||||
* |
||||
* @{ |
||||
* |
||||
* @} |
||||
* |
||||
* @defgroup lavu_data Data Structures |
||||
* @{ |
||||
* |
||||
* @} |
||||
* |
||||
* @defgroup lavu_audio Audio related |
||||
* |
||||
* @{ |
||||
* |
||||
* @} |
||||
* |
||||
* @defgroup lavu_error Error Codes |
||||
* |
||||
* @{ |
||||
* |
||||
* @} |
||||
* |
||||
* @defgroup lavu_misc Other |
||||
* |
||||
* @{ |
||||
* |
||||
* @defgroup lavu_internal Internal |
||||
* |
||||
* Not exported functions, for internal usage only |
||||
* |
||||
* @{ |
||||
* |
||||
* @} |
||||
*/ |
||||
|
||||
|
||||
/**
|
||||
* @addtogroup lavu_ver |
||||
* @{ |
||||
*/ |
||||
|
||||
/**
|
||||
* Return the LIBAVUTIL_VERSION_INT constant. |
||||
*/ |
||||
unsigned avutil_version(void); |
||||
|
||||
/**
|
||||
* Return the libavutil build-time configuration. |
||||
*/ |
||||
const char *avutil_configuration(void); |
||||
|
||||
/**
|
||||
* Return the libavutil license. |
||||
*/ |
||||
const char *avutil_license(void); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
/**
|
||||
* @addtogroup lavu_media Media Type |
||||
* @brief Media Type |
||||
*/ |
||||
|
||||
enum AVMediaType { |
||||
AVMEDIA_TYPE_UNKNOWN = -1, ///< Usually treated as AVMEDIA_TYPE_DATA
|
||||
AVMEDIA_TYPE_VIDEO, |
||||
AVMEDIA_TYPE_AUDIO, |
||||
AVMEDIA_TYPE_DATA, ///< Opaque data information usually continuous
|
||||
AVMEDIA_TYPE_SUBTITLE, |
||||
AVMEDIA_TYPE_ATTACHMENT, ///< Opaque data information usually sparse
|
||||
AVMEDIA_TYPE_NB |
||||
}; |
||||
|
||||
/**
|
||||
* Return a string describing the media_type enum, NULL if media_type |
||||
* is unknown. |
||||
*/ |
||||
const char *av_get_media_type_string(enum AVMediaType media_type); |
||||
|
||||
/**
|
||||
* @defgroup lavu_const Constants |
||||
* @{ |
||||
* |
||||
* @defgroup lavu_enc Encoding specific |
||||
* |
||||
* @note those definition should move to avcodec |
||||
* @{ |
||||
*/ |
||||
|
||||
#define FF_LAMBDA_SHIFT 7 |
||||
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT) |
||||
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
|
||||
#define FF_LAMBDA_MAX (256*128-1) |
||||
|
||||
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
|
||||
|
||||
/**
|
||||
* @} |
||||
* @defgroup lavu_time Timestamp specific |
||||
* |
||||
* FFmpeg internal timebase and timestamp definitions |
||||
* |
||||
* @{ |
||||
*/ |
||||
|
||||
/**
|
||||
* @brief Undefined timestamp value |
||||
* |
||||
* Usually reported by demuxer that work on containers that do not provide |
||||
* either pts or dts. |
||||
*/ |
||||
|
||||
#define AV_NOPTS_VALUE ((int64_t)UINT64_C(0x8000000000000000)) |
||||
|
||||
/**
|
||||
* Internal time base represented as integer |
||||
*/ |
||||
|
||||
#define AV_TIME_BASE 1000000 |
||||
|
||||
/**
|
||||
* Internal time base represented as fractional value |
||||
*/ |
||||
|
||||
#define AV_TIME_BASE_Q (AVRational){1, AV_TIME_BASE} |
||||
|
||||
/**
|
||||
* @} |
||||
* @} |
||||
* @defgroup lavu_picture Image related |
||||
* |
||||
* AVPicture types, pixel formats and basic image planes manipulation. |
||||
* |
||||
* @{ |
||||
*/ |
||||
|
||||
enum AVPictureType { |
||||
AV_PICTURE_TYPE_NONE = 0, ///< Undefined
|
||||
AV_PICTURE_TYPE_I, ///< Intra
|
||||
AV_PICTURE_TYPE_P, ///< Predicted
|
||||
AV_PICTURE_TYPE_B, ///< Bi-dir predicted
|
||||
AV_PICTURE_TYPE_S, ///< S(GMC)-VOP MPEG4
|
||||
AV_PICTURE_TYPE_SI, ///< Switching Intra
|
||||
AV_PICTURE_TYPE_SP, ///< Switching Predicted
|
||||
AV_PICTURE_TYPE_BI, ///< BI type
|
||||
}; |
||||
|
||||
/**
|
||||
* Return a single letter to describe the given picture type |
||||
* pict_type. |
||||
* |
||||
* @param[in] pict_type the picture type @return a single character |
||||
* representing the picture type, '?' if pict_type is unknown |
||||
*/ |
||||
char av_get_picture_type_char(enum AVPictureType pict_type); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#include "common.h" |
||||
#include "error.h" |
||||
#include "version.h" |
||||
#include "mathematics.h" |
||||
#include "rational.h" |
||||
#include "intfloat_readwrite.h" |
||||
#include "log.h" |
||||
#include "pixfmt.h" |
||||
|
||||
/**
|
||||
* Return x default pointer in case p is NULL. |
||||
*/ |
||||
static inline void *av_x_if_null(const void *p, const void *x) |
||||
{ |
||||
return (void *)(intptr_t)(p ? p : x); |
||||
} |
||||
|
||||
/**
|
||||
* Compute the length of an integer list. |
||||
* |
||||
* @param elsize size in bytes of each list element (only 1, 2, 4 or 8) |
||||
* @param term list terminator (usually 0 or -1) |
||||
* @param list pointer to the list |
||||
* @return length of the list, in elements, not counting the terminator |
||||
*/ |
||||
unsigned av_int_list_length_for_size(unsigned elsize, |
||||
const void *list, uint64_t term) av_pure; |
||||
|
||||
/**
|
||||
* Compute the length of an integer list. |
||||
* |
||||
* @param term list terminator (usually 0 or -1) |
||||
* @param list pointer to the list |
||||
* @return length of the list, in elements, not counting the terminator |
||||
*/ |
||||
#define av_int_list_length(list, term) \ |
||||
av_int_list_length_for_size(sizeof(*(list)), list, term) |
||||
|
||||
/**
|
||||
* @} |
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_AVUTIL_H */ |
@ -1,67 +0,0 @@ |
||||
/*
|
||||
* Copyright (c) 2006 Ryan Martell. (rdm4@martellventures.com) |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_BASE64_H |
||||
#define AVUTIL_BASE64_H |
||||
|
||||
#include <stdint.h> |
||||
|
||||
/**
|
||||
* @defgroup lavu_base64 Base64 |
||||
* @ingroup lavu_crypto |
||||
* @{ |
||||
*/ |
||||
|
||||
|
||||
/**
|
||||
* Decode a base64-encoded string. |
||||
* |
||||
* @param out buffer for decoded data |
||||
* @param in null-terminated input string |
||||
* @param out_size size in bytes of the out buffer, must be at |
||||
* least 3/4 of the length of in |
||||
* @return number of bytes written, or a negative value in case of |
||||
* invalid input |
||||
*/ |
||||
int av_base64_decode(uint8_t *out, const char *in, int out_size); |
||||
|
||||
/**
|
||||
* Encode data to base64 and null-terminate. |
||||
* |
||||
* @param out buffer for encoded data |
||||
* @param out_size size in bytes of the out buffer (including the |
||||
* null terminator), must be at least AV_BASE64_SIZE(in_size) |
||||
* @param in input buffer containing the data to encode |
||||
* @param in_size size in bytes of the in buffer |
||||
* @return out or NULL in case of error |
||||
*/ |
||||
char *av_base64_encode(char *out, int out_size, const uint8_t *in, int in_size); |
||||
|
||||
/**
|
||||
* Calculate the output size needed to base64-encode x bytes to a |
||||
* null-terminated string. |
||||
*/ |
||||
#define AV_BASE64_SIZE(x) (((x)+2) / 3 * 4 + 1) |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_BASE64_H */ |
@ -1,77 +0,0 @@ |
||||
/*
|
||||
* Blowfish algorithm |
||||
* Copyright (c) 2012 Samuel Pitoiset |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_BLOWFISH_H |
||||
#define AVUTIL_BLOWFISH_H |
||||
|
||||
#include <stdint.h> |
||||
|
||||
/**
|
||||
* @defgroup lavu_blowfish Blowfish |
||||
* @ingroup lavu_crypto |
||||
* @{ |
||||
*/ |
||||
|
||||
#define AV_BF_ROUNDS 16 |
||||
|
||||
typedef struct AVBlowfish { |
||||
uint32_t p[AV_BF_ROUNDS + 2]; |
||||
uint32_t s[4][256]; |
||||
} AVBlowfish; |
||||
|
||||
/**
|
||||
* Initialize an AVBlowfish context. |
||||
* |
||||
* @param ctx an AVBlowfish context |
||||
* @param key a key |
||||
* @param key_len length of the key |
||||
*/ |
||||
void av_blowfish_init(struct AVBlowfish *ctx, const uint8_t *key, int key_len); |
||||
|
||||
/**
|
||||
* Encrypt or decrypt a buffer using a previously initialized context. |
||||
* |
||||
* @param ctx an AVBlowfish context |
||||
* @param xl left four bytes halves of input to be encrypted |
||||
* @param xr right four bytes halves of input to be encrypted |
||||
* @param decrypt 0 for encryption, 1 for decryption |
||||
*/ |
||||
void av_blowfish_crypt_ecb(struct AVBlowfish *ctx, uint32_t *xl, uint32_t *xr, |
||||
int decrypt); |
||||
|
||||
/**
|
||||
* Encrypt or decrypt a buffer using a previously initialized context. |
||||
* |
||||
* @param ctx an AVBlowfish context |
||||
* @param dst destination array, can be equal to src |
||||
* @param src source array, can be equal to dst |
||||
* @param count number of 8 byte blocks |
||||
* @param iv initialization vector for CBC mode, if NULL ECB will be used |
||||
* @param decrypt 0 for encryption, 1 for decryption |
||||
*/ |
||||
void av_blowfish_crypt(struct AVBlowfish *ctx, uint8_t *dst, const uint8_t *src, |
||||
int count, uint8_t *iv, int decrypt); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_BLOWFISH_H */ |
@ -1,200 +0,0 @@ |
||||
/*
|
||||
* Copyright (c) 2012 Nicolas George |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_BPRINT_H |
||||
#define AVUTIL_BPRINT_H |
||||
|
||||
#include "attributes.h" |
||||
#include "avstring.h" |
||||
|
||||
/**
|
||||
* Define a structure with extra padding to a fixed size |
||||
* This helps ensuring binary compatibility with future versions. |
||||
*/ |
||||
#define FF_PAD_STRUCTURE(size, ...) \ |
||||
__VA_ARGS__ \
|
||||
char reserved_padding[size - sizeof(struct { __VA_ARGS__ })]; |
||||
|
||||
/**
|
||||
* Buffer to print data progressively |
||||
* |
||||
* The string buffer grows as necessary and is always 0-terminated. |
||||
* The content of the string is never accessed, and thus is |
||||
* encoding-agnostic and can even hold binary data. |
||||
* |
||||
* Small buffers are kept in the structure itself, and thus require no |
||||
* memory allocation at all (unless the contents of the buffer is needed |
||||
* after the structure goes out of scope). This is almost as lightweight as |
||||
* declaring a local "char buf[512]". |
||||
* |
||||
* The length of the string can go beyond the allocated size: the buffer is |
||||
* then truncated, but the functions still keep account of the actual total |
||||
* length. |
||||
* |
||||
* In other words, buf->len can be greater than buf->size and records the |
||||
* total length of what would have been to the buffer if there had been |
||||
* enough memory. |
||||
* |
||||
* Append operations do not need to be tested for failure: if a memory |
||||
* allocation fails, data stop being appended to the buffer, but the length |
||||
* is still updated. This situation can be tested with |
||||
* av_bprint_is_complete(). |
||||
* |
||||
* The size_max field determines several possible behaviours: |
||||
* |
||||
* size_max = -1 (= UINT_MAX) or any large value will let the buffer be |
||||
* reallocated as necessary, with an amortized linear cost. |
||||
* |
||||
* size_max = 0 prevents writing anything to the buffer: only the total |
||||
* length is computed. The write operations can then possibly be repeated in |
||||
* a buffer with exactly the necessary size |
||||
* (using size_init = size_max = len + 1). |
||||
* |
||||
* size_max = 1 is automatically replaced by the exact size available in the |
||||
* structure itself, thus ensuring no dynamic memory allocation. The |
||||
* internal buffer is large enough to hold a reasonable paragraph of text, |
||||
* such as the current paragraph. |
||||
*/ |
||||
typedef struct AVBPrint { |
||||
FF_PAD_STRUCTURE(1024, |
||||
char *str; /**< string so far */ |
||||
unsigned len; /**< length so far */ |
||||
unsigned size; /**< allocated memory */ |
||||
unsigned size_max; /**< maximum allocated memory */ |
||||
char reserved_internal_buffer[1]; |
||||
) |
||||
} AVBPrint; |
||||
|
||||
/**
|
||||
* Convenience macros for special values for av_bprint_init() size_max |
||||
* parameter. |
||||
*/ |
||||
#define AV_BPRINT_SIZE_UNLIMITED ((unsigned)-1) |
||||
#define AV_BPRINT_SIZE_AUTOMATIC 1 |
||||
#define AV_BPRINT_SIZE_COUNT_ONLY 0 |
||||
|
||||
/**
|
||||
* Init a print buffer. |
||||
* |
||||
* @param buf buffer to init |
||||
* @param size_init initial size (including the final 0) |
||||
* @param size_max maximum size; |
||||
* 0 means do not write anything, just count the length; |
||||
* 1 is replaced by the maximum value for automatic storage; |
||||
* any large value means that the internal buffer will be |
||||
* reallocated as needed up to that limit; -1 is converted to |
||||
* UINT_MAX, the largest limit possible. |
||||
* Check also AV_BPRINT_SIZE_* macros. |
||||
*/ |
||||
void av_bprint_init(AVBPrint *buf, unsigned size_init, unsigned size_max); |
||||
|
||||
/**
|
||||
* Init a print buffer using a pre-existing buffer. |
||||
* |
||||
* The buffer will not be reallocated. |
||||
* |
||||
* @param buf buffer structure to init |
||||
* @param buffer byte buffer to use for the string data |
||||
* @param size size of buffer |
||||
*/ |
||||
void av_bprint_init_for_buffer(AVBPrint *buf, char *buffer, unsigned size); |
||||
|
||||
/**
|
||||
* Append a formatted string to a print buffer. |
||||
*/ |
||||
void av_bprintf(AVBPrint *buf, const char *fmt, ...) av_printf_format(2, 3); |
||||
|
||||
/**
|
||||
* Append char c n times to a print buffer. |
||||
*/ |
||||
void av_bprint_chars(AVBPrint *buf, char c, unsigned n); |
||||
|
||||
struct tm; |
||||
/**
|
||||
* Append a formatted date and time to a print buffer. |
||||
* |
||||
* param buf bprint buffer to use |
||||
* param fmt date and time format string, see strftime() |
||||
* param tm broken-down time structure to translate |
||||
* |
||||
* @note due to poor design of the standard strftime function, it may |
||||
* produce poor results if the format string expands to a very long text and |
||||
* the bprint buffer is near the limit stated by the size_max option. |
||||
*/ |
||||
void av_bprint_strftime(AVBPrint *buf, const char *fmt, const struct tm *tm); |
||||
|
||||
/**
|
||||
* Allocate bytes in the buffer for external use. |
||||
* |
||||
* @param[in] buf buffer structure |
||||
* @param[in] size required size |
||||
* @param[out] mem pointer to the memory area |
||||
* @param[out] actual_size size of the memory area after allocation; |
||||
* can be larger or smaller than size |
||||
*/ |
||||
void av_bprint_get_buffer(AVBPrint *buf, unsigned size, |
||||
unsigned char **mem, unsigned *actual_size); |
||||
|
||||
/**
|
||||
* Reset the string to "" but keep internal allocated data. |
||||
*/ |
||||
void av_bprint_clear(AVBPrint *buf); |
||||
|
||||
/**
|
||||
* Test if the print buffer is complete (not truncated). |
||||
* |
||||
* It may have been truncated due to a memory allocation failure |
||||
* or the size_max limit (compare size and size_max if necessary). |
||||
*/ |
||||
static inline int av_bprint_is_complete(AVBPrint *buf) |
||||
{ |
||||
return buf->len < buf->size; |
||||
} |
||||
|
||||
/**
|
||||
* Finalize a print buffer. |
||||
* |
||||
* The print buffer can no longer be used afterwards, |
||||
* but the len and size fields are still valid. |
||||
* |
||||
* @arg[out] ret_str if not NULL, used to return a permanent copy of the |
||||
* buffer contents, or NULL if memory allocation fails; |
||||
* if NULL, the buffer is discarded and freed |
||||
* @return 0 for success or error code (probably AVERROR(ENOMEM)) |
||||
*/ |
||||
int av_bprint_finalize(AVBPrint *buf, char **ret_str); |
||||
|
||||
/**
|
||||
* Escape the content in src and append it to dstbuf. |
||||
* |
||||
* @param dstbuf already inited destination bprint buffer |
||||
* @param src string containing the text to escape |
||||
* @param special_chars string containing the special characters which |
||||
* need to be escaped, can be NULL |
||||
* @param mode escape mode to employ, see AV_ESCAPE_MODE_* macros. |
||||
* Any unknown value for mode will be considered equivalent to |
||||
* AV_ESCAPE_MODE_BACKSLASH, but this behaviour can change without |
||||
* notice. |
||||
* @param flags flags which control how to escape, see AV_ESCAPE_FLAG_* macros |
||||
*/ |
||||
void av_bprint_escape(AVBPrint *dstbuf, const char *src, const char *special_chars, |
||||
enum AVEscapeMode mode, int flags); |
||||
|
||||
#endif /* AVUTIL_BPRINT_H */ |
@ -1,109 +0,0 @@ |
||||
/*
|
||||
* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
/**
|
||||
* @file |
||||
* byte swapping routines |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_BSWAP_H |
||||
#define AVUTIL_BSWAP_H |
||||
|
||||
#include <stdint.h> |
||||
#include "libavutil/avconfig.h" |
||||
#include "attributes.h" |
||||
|
||||
#ifdef HAVE_AV_CONFIG_H |
||||
|
||||
#include "config.h" |
||||
|
||||
#if ARCH_ARM |
||||
# include "arm/bswap.h" |
||||
#elif ARCH_AVR32 |
||||
# include "avr32/bswap.h" |
||||
#elif ARCH_BFIN |
||||
# include "bfin/bswap.h" |
||||
#elif ARCH_SH4 |
||||
# include "sh4/bswap.h" |
||||
#elif ARCH_X86 |
||||
# include "x86/bswap.h" |
||||
#endif |
||||
|
||||
#endif /* HAVE_AV_CONFIG_H */ |
||||
|
||||
#define AV_BSWAP16C(x) (((x) << 8 & 0xff00) | ((x) >> 8 & 0x00ff)) |
||||
#define AV_BSWAP32C(x) (AV_BSWAP16C(x) << 16 | AV_BSWAP16C((x) >> 16)) |
||||
#define AV_BSWAP64C(x) (AV_BSWAP32C(x) << 32 | AV_BSWAP32C((x) >> 32)) |
||||
|
||||
#define AV_BSWAPC(s, x) AV_BSWAP##s##C(x) |
||||
|
||||
#ifndef av_bswap16 |
||||
static av_always_inline av_const uint16_t av_bswap16(uint16_t x) |
||||
{ |
||||
x= (x>>8) | (x<<8); |
||||
return x; |
||||
} |
||||
#endif |
||||
|
||||
#ifndef av_bswap32 |
||||
static av_always_inline av_const uint32_t av_bswap32(uint32_t x) |
||||
{ |
||||
return AV_BSWAP32C(x); |
||||
} |
||||
#endif |
||||
|
||||
#ifndef av_bswap64 |
||||
static inline uint64_t av_const av_bswap64(uint64_t x) |
||||
{ |
||||
return (uint64_t)av_bswap32(x) << 32 | av_bswap32(x >> 32); |
||||
} |
||||
#endif |
||||
|
||||
// be2ne ... big-endian to native-endian
|
||||
// le2ne ... little-endian to native-endian
|
||||
|
||||
#if AV_HAVE_BIGENDIAN |
||||
#define av_be2ne16(x) (x) |
||||
#define av_be2ne32(x) (x) |
||||
#define av_be2ne64(x) (x) |
||||
#define av_le2ne16(x) av_bswap16(x) |
||||
#define av_le2ne32(x) av_bswap32(x) |
||||
#define av_le2ne64(x) av_bswap64(x) |
||||
#define AV_BE2NEC(s, x) (x) |
||||
#define AV_LE2NEC(s, x) AV_BSWAPC(s, x) |
||||
#else |
||||
#define av_be2ne16(x) av_bswap16(x) |
||||
#define av_be2ne32(x) av_bswap32(x) |
||||
#define av_be2ne64(x) av_bswap64(x) |
||||
#define av_le2ne16(x) (x) |
||||
#define av_le2ne32(x) (x) |
||||
#define av_le2ne64(x) (x) |
||||
#define AV_BE2NEC(s, x) AV_BSWAPC(s, x) |
||||
#define AV_LE2NEC(s, x) (x) |
||||
#endif |
||||
|
||||
#define AV_BE2NE16C(x) AV_BE2NEC(16, x) |
||||
#define AV_BE2NE32C(x) AV_BE2NEC(32, x) |
||||
#define AV_BE2NE64C(x) AV_BE2NEC(64, x) |
||||
#define AV_LE2NE16C(x) AV_LE2NEC(16, x) |
||||
#define AV_LE2NE32C(x) AV_LE2NEC(32, x) |
||||
#define AV_LE2NE64C(x) AV_LE2NEC(64, x) |
||||
|
||||
#endif /* AVUTIL_BSWAP_H */ |
@ -1,274 +0,0 @@ |
||||
/*
|
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
/**
|
||||
* @file |
||||
* @ingroup lavu_buffer |
||||
* refcounted data buffer API |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_BUFFER_H |
||||
#define AVUTIL_BUFFER_H |
||||
|
||||
#include <stdint.h> |
||||
|
||||
/**
|
||||
* @defgroup lavu_buffer AVBuffer |
||||
* @ingroup lavu_data |
||||
* |
||||
* @{ |
||||
* AVBuffer is an API for reference-counted data buffers. |
||||
* |
||||
* There are two core objects in this API -- AVBuffer and AVBufferRef. AVBuffer |
||||
* represents the data buffer itself; it is opaque and not meant to be accessed |
||||
* by the caller directly, but only through AVBufferRef. However, the caller may |
||||
* e.g. compare two AVBuffer pointers to check whether two different references |
||||
* are describing the same data buffer. AVBufferRef represents a single |
||||
* reference to an AVBuffer and it is the object that may be manipulated by the |
||||
* caller directly. |
||||
* |
||||
* There are two functions provided for creating a new AVBuffer with a single |
||||
* reference -- av_buffer_alloc() to just allocate a new buffer, and |
||||
* av_buffer_create() to wrap an existing array in an AVBuffer. From an existing |
||||
* reference, additional references may be created with av_buffer_ref(). |
||||
* Use av_buffer_unref() to free a reference (this will automatically free the |
||||
* data once all the references are freed). |
||||
* |
||||
* The convention throughout this API and the rest of FFmpeg is such that the |
||||
* buffer is considered writable if there exists only one reference to it (and |
||||
* it has not been marked as read-only). The av_buffer_is_writable() function is |
||||
* provided to check whether this is true and av_buffer_make_writable() will |
||||
* automatically create a new writable buffer when necessary. |
||||
* Of course nothing prevents the calling code from violating this convention, |
||||
* however that is safe only when all the existing references are under its |
||||
* control. |
||||
* |
||||
* @note Referencing and unreferencing the buffers is thread-safe and thus |
||||
* may be done from multiple threads simultaneously without any need for |
||||
* additional locking. |
||||
* |
||||
* @note Two different references to the same buffer can point to different |
||||
* parts of the buffer (i.e. their AVBufferRef.data will not be equal). |
||||
*/ |
||||
|
||||
/**
|
||||
* A reference counted buffer type. It is opaque and is meant to be used through |
||||
* references (AVBufferRef). |
||||
*/ |
||||
typedef struct AVBuffer AVBuffer; |
||||
|
||||
/**
|
||||
* A reference to a data buffer. |
||||
* |
||||
* The size of this struct is not a part of the public ABI and it is not meant |
||||
* to be allocated directly. |
||||
*/ |
||||
typedef struct AVBufferRef { |
||||
AVBuffer *buffer; |
||||
|
||||
/**
|
||||
* The data buffer. It is considered writable if and only if |
||||
* this is the only reference to the buffer, in which case |
||||
* av_buffer_is_writable() returns 1. |
||||
*/ |
||||
uint8_t *data; |
||||
/**
|
||||
* Size of data in bytes. |
||||
*/ |
||||
int size; |
||||
} AVBufferRef; |
||||
|
||||
/**
|
||||
* Allocate an AVBuffer of the given size using av_malloc(). |
||||
* |
||||
* @return an AVBufferRef of given size or NULL when out of memory |
||||
*/ |
||||
AVBufferRef *av_buffer_alloc(int size); |
||||
|
||||
/**
|
||||
* Same as av_buffer_alloc(), except the returned buffer will be initialized |
||||
* to zero. |
||||
*/ |
||||
AVBufferRef *av_buffer_allocz(int size); |
||||
|
||||
/**
|
||||
* Always treat the buffer as read-only, even when it has only one |
||||
* reference. |
||||
*/ |
||||
#define AV_BUFFER_FLAG_READONLY (1 << 0) |
||||
|
||||
/**
|
||||
* Create an AVBuffer from an existing array. |
||||
* |
||||
* If this function is successful, data is owned by the AVBuffer. The caller may |
||||
* only access data through the returned AVBufferRef and references derived from |
||||
* it. |
||||
* If this function fails, data is left untouched. |
||||
* @param data data array |
||||
* @param size size of data in bytes |
||||
* @param free a callback for freeing this buffer's data |
||||
* @param opaque parameter to be got for processing or passed to free |
||||
* @param flags a combination of AV_BUFFER_FLAG_* |
||||
* |
||||
* @return an AVBufferRef referring to data on success, NULL on failure. |
||||
*/ |
||||
AVBufferRef *av_buffer_create(uint8_t *data, int size, |
||||
void (*free)(void *opaque, uint8_t *data), |
||||
void *opaque, int flags); |
||||
|
||||
/**
|
||||
* Default free callback, which calls av_free() on the buffer data. |
||||
* This function is meant to be passed to av_buffer_create(), not called |
||||
* directly. |
||||
*/ |
||||
void av_buffer_default_free(void *opaque, uint8_t *data); |
||||
|
||||
/**
|
||||
* Create a new reference to an AVBuffer. |
||||
* |
||||
* @return a new AVBufferRef referring to the same AVBuffer as buf or NULL on |
||||
* failure. |
||||
*/ |
||||
AVBufferRef *av_buffer_ref(AVBufferRef *buf); |
||||
|
||||
/**
|
||||
* Free a given reference and automatically free the buffer if there are no more |
||||
* references to it. |
||||
* |
||||
* @param buf the reference to be freed. The pointer is set to NULL on return. |
||||
*/ |
||||
void av_buffer_unref(AVBufferRef **buf); |
||||
|
||||
/**
|
||||
* @return 1 if the caller may write to the data referred to by buf (which is |
||||
* true if and only if buf is the only reference to the underlying AVBuffer). |
||||
* Return 0 otherwise. |
||||
* A positive answer is valid until av_buffer_ref() is called on buf. |
||||
*/ |
||||
int av_buffer_is_writable(const AVBufferRef *buf); |
||||
|
||||
/**
|
||||
* @return the opaque parameter set by av_buffer_create. |
||||
*/ |
||||
void *av_buffer_get_opaque(const AVBufferRef *buf); |
||||
|
||||
int av_buffer_get_ref_count(const AVBufferRef *buf); |
||||
|
||||
/**
|
||||
* Create a writable reference from a given buffer reference, avoiding data copy |
||||
* if possible. |
||||
* |
||||
* @param buf buffer reference to make writable. On success, buf is either left |
||||
* untouched, or it is unreferenced and a new writable AVBufferRef is |
||||
* written in its place. On failure, buf is left untouched. |
||||
* @return 0 on success, a negative AVERROR on failure. |
||||
*/ |
||||
int av_buffer_make_writable(AVBufferRef **buf); |
||||
|
||||
/**
|
||||
* Reallocate a given buffer. |
||||
* |
||||
* @param buf a buffer reference to reallocate. On success, buf will be |
||||
* unreferenced and a new reference with the required size will be |
||||
* written in its place. On failure buf will be left untouched. *buf |
||||
* may be NULL, then a new buffer is allocated. |
||||
* @param size required new buffer size. |
||||
* @return 0 on success, a negative AVERROR on failure. |
||||
* |
||||
* @note the buffer is actually reallocated with av_realloc() only if it was |
||||
* initially allocated through av_buffer_realloc(NULL) and there is only one |
||||
* reference to it (i.e. the one passed to this function). In all other cases |
||||
* a new buffer is allocated and the data is copied. |
||||
*/ |
||||
int av_buffer_realloc(AVBufferRef **buf, int size); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
/**
|
||||
* @defgroup lavu_bufferpool AVBufferPool |
||||
* @ingroup lavu_data |
||||
* |
||||
* @{ |
||||
* AVBufferPool is an API for a lock-free thread-safe pool of AVBuffers. |
||||
* |
||||
* Frequently allocating and freeing large buffers may be slow. AVBufferPool is |
||||
* meant to solve this in cases when the caller needs a set of buffers of the |
||||
* same size (the most obvious use case being buffers for raw video or audio |
||||
* frames). |
||||
* |
||||
* At the beginning, the user must call av_buffer_pool_init() to create the |
||||
* buffer pool. Then whenever a buffer is needed, call av_buffer_pool_get() to |
||||
* get a reference to a new buffer, similar to av_buffer_alloc(). This new |
||||
* reference works in all aspects the same way as the one created by |
||||
* av_buffer_alloc(). However, when the last reference to this buffer is |
||||
* unreferenced, it is returned to the pool instead of being freed and will be |
||||
* reused for subsequent av_buffer_pool_get() calls. |
||||
* |
||||
* When the caller is done with the pool and no longer needs to allocate any new |
||||
* buffers, av_buffer_pool_uninit() must be called to mark the pool as freeable. |
||||
* Once all the buffers are released, it will automatically be freed. |
||||
* |
||||
* Allocating and releasing buffers with this API is thread-safe as long as |
||||
* either the default alloc callback is used, or the user-supplied one is |
||||
* thread-safe. |
||||
*/ |
||||
|
||||
/**
|
||||
* The buffer pool. This structure is opaque and not meant to be accessed |
||||
* directly. It is allocated with av_buffer_pool_init() and freed with |
||||
* av_buffer_pool_uninit(). |
||||
*/ |
||||
typedef struct AVBufferPool AVBufferPool; |
||||
|
||||
/**
|
||||
* Allocate and initialize a buffer pool. |
||||
* |
||||
* @param size size of each buffer in this pool |
||||
* @param alloc a function that will be used to allocate new buffers when the |
||||
* pool is empty. May be NULL, then the default allocator will be used |
||||
* (av_buffer_alloc()). |
||||
* @return newly created buffer pool on success, NULL on error. |
||||
*/ |
||||
AVBufferPool *av_buffer_pool_init(int size, AVBufferRef* (*alloc)(int size)); |
||||
|
||||
/**
|
||||
* Mark the pool as being available for freeing. It will actually be freed only |
||||
* once all the allocated buffers associated with the pool are released. Thus it |
||||
* is safe to call this function while some of the allocated buffers are still |
||||
* in use. |
||||
* |
||||
* @param pool pointer to the pool to be freed. It will be set to NULL. |
||||
* @see av_buffer_pool_can_uninit() |
||||
*/ |
||||
void av_buffer_pool_uninit(AVBufferPool **pool); |
||||
|
||||
/**
|
||||
* Allocate a new AVBuffer, reusing an old buffer from the pool when available. |
||||
* This function may be called simultaneously from multiple threads. |
||||
* |
||||
* @return a reference to the new buffer on success, NULL on error. |
||||
*/ |
||||
AVBufferRef *av_buffer_pool_get(AVBufferPool *pool); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_BUFFER_H */ |
@ -1,216 +0,0 @@ |
||||
/*
|
||||
* Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> |
||||
* Copyright (c) 2008 Peter Ross |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_CHANNEL_LAYOUT_H |
||||
#define AVUTIL_CHANNEL_LAYOUT_H |
||||
|
||||
#include <stdint.h> |
||||
|
||||
/**
|
||||
* @file |
||||
* audio channel layout utility functions |
||||
*/ |
||||
|
||||
/**
|
||||
* @addtogroup lavu_audio |
||||
* @{ |
||||
*/ |
||||
|
||||
/**
|
||||
* @defgroup channel_masks Audio channel masks |
||||
* |
||||
* A channel layout is a 64-bits integer with a bit set for every channel. |
||||
* The number of bits set must be equal to the number of channels. |
||||
* The value 0 means that the channel layout is not known. |
||||
* @note this data structure is not powerful enough to handle channels |
||||
* combinations that have the same channel multiple times, such as |
||||
* dual-mono. |
||||
* |
||||
* @{ |
||||
*/ |
||||
#define AV_CH_FRONT_LEFT 0x00000001 |
||||
#define AV_CH_FRONT_RIGHT 0x00000002 |
||||
#define AV_CH_FRONT_CENTER 0x00000004 |
||||
#define AV_CH_LOW_FREQUENCY 0x00000008 |
||||
#define AV_CH_BACK_LEFT 0x00000010 |
||||
#define AV_CH_BACK_RIGHT 0x00000020 |
||||
#define AV_CH_FRONT_LEFT_OF_CENTER 0x00000040 |
||||
#define AV_CH_FRONT_RIGHT_OF_CENTER 0x00000080 |
||||
#define AV_CH_BACK_CENTER 0x00000100 |
||||
#define AV_CH_SIDE_LEFT 0x00000200 |
||||
#define AV_CH_SIDE_RIGHT 0x00000400 |
||||
#define AV_CH_TOP_CENTER 0x00000800 |
||||
#define AV_CH_TOP_FRONT_LEFT 0x00001000 |
||||
#define AV_CH_TOP_FRONT_CENTER 0x00002000 |
||||
#define AV_CH_TOP_FRONT_RIGHT 0x00004000 |
||||
#define AV_CH_TOP_BACK_LEFT 0x00008000 |
||||
#define AV_CH_TOP_BACK_CENTER 0x00010000 |
||||
#define AV_CH_TOP_BACK_RIGHT 0x00020000 |
||||
#define AV_CH_STEREO_LEFT 0x20000000 ///< Stereo downmix.
|
||||
#define AV_CH_STEREO_RIGHT 0x40000000 ///< See AV_CH_STEREO_LEFT.
|
||||
#define AV_CH_WIDE_LEFT 0x0000000080000000ULL |
||||
#define AV_CH_WIDE_RIGHT 0x0000000100000000ULL |
||||
#define AV_CH_SURROUND_DIRECT_LEFT 0x0000000200000000ULL |
||||
#define AV_CH_SURROUND_DIRECT_RIGHT 0x0000000400000000ULL |
||||
#define AV_CH_LOW_FREQUENCY_2 0x0000000800000000ULL |
||||
|
||||
/** Channel mask value used for AVCodecContext.request_channel_layout
|
||||
to indicate that the user requests the channel order of the decoder output |
||||
to be the native codec channel order. */ |
||||
#define AV_CH_LAYOUT_NATIVE 0x8000000000000000ULL |
||||
|
||||
/**
|
||||
* @} |
||||
* @defgroup channel_mask_c Audio channel convenience macros |
||||
* @{ |
||||
* */ |
||||
#define AV_CH_LAYOUT_MONO (AV_CH_FRONT_CENTER) |
||||
#define AV_CH_LAYOUT_STEREO (AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT) |
||||
#define AV_CH_LAYOUT_2POINT1 (AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY) |
||||
#define AV_CH_LAYOUT_2_1 (AV_CH_LAYOUT_STEREO|AV_CH_BACK_CENTER) |
||||
#define AV_CH_LAYOUT_SURROUND (AV_CH_LAYOUT_STEREO|AV_CH_FRONT_CENTER) |
||||
#define AV_CH_LAYOUT_3POINT1 (AV_CH_LAYOUT_SURROUND|AV_CH_LOW_FREQUENCY) |
||||
#define AV_CH_LAYOUT_4POINT0 (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_CENTER) |
||||
#define AV_CH_LAYOUT_4POINT1 (AV_CH_LAYOUT_4POINT0|AV_CH_LOW_FREQUENCY) |
||||
#define AV_CH_LAYOUT_2_2 (AV_CH_LAYOUT_STEREO|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT) |
||||
#define AV_CH_LAYOUT_QUAD (AV_CH_LAYOUT_STEREO|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT) |
||||
#define AV_CH_LAYOUT_5POINT0 (AV_CH_LAYOUT_SURROUND|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT) |
||||
#define AV_CH_LAYOUT_5POINT1 (AV_CH_LAYOUT_5POINT0|AV_CH_LOW_FREQUENCY) |
||||
#define AV_CH_LAYOUT_5POINT0_BACK (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT) |
||||
#define AV_CH_LAYOUT_5POINT1_BACK (AV_CH_LAYOUT_5POINT0_BACK|AV_CH_LOW_FREQUENCY) |
||||
#define AV_CH_LAYOUT_6POINT0 (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_CENTER) |
||||
#define AV_CH_LAYOUT_6POINT0_FRONT (AV_CH_LAYOUT_2_2|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER) |
||||
#define AV_CH_LAYOUT_HEXAGONAL (AV_CH_LAYOUT_5POINT0_BACK|AV_CH_BACK_CENTER) |
||||
#define AV_CH_LAYOUT_6POINT1 (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_CENTER) |
||||
#define AV_CH_LAYOUT_6POINT1_BACK (AV_CH_LAYOUT_5POINT1_BACK|AV_CH_BACK_CENTER) |
||||
#define AV_CH_LAYOUT_6POINT1_FRONT (AV_CH_LAYOUT_6POINT0_FRONT|AV_CH_LOW_FREQUENCY) |
||||
#define AV_CH_LAYOUT_7POINT0 (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT) |
||||
#define AV_CH_LAYOUT_7POINT0_FRONT (AV_CH_LAYOUT_5POINT0|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER) |
||||
#define AV_CH_LAYOUT_7POINT1 (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT) |
||||
#define AV_CH_LAYOUT_7POINT1_WIDE (AV_CH_LAYOUT_5POINT1|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER) |
||||
#define AV_CH_LAYOUT_7POINT1_WIDE_BACK (AV_CH_LAYOUT_5POINT1_BACK|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER) |
||||
#define AV_CH_LAYOUT_OCTAGONAL (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_LEFT|AV_CH_BACK_CENTER|AV_CH_BACK_RIGHT) |
||||
#define AV_CH_LAYOUT_STEREO_DOWNMIX (AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT) |
||||
|
||||
enum AVMatrixEncoding { |
||||
AV_MATRIX_ENCODING_NONE, |
||||
AV_MATRIX_ENCODING_DOLBY, |
||||
AV_MATRIX_ENCODING_DPLII, |
||||
AV_MATRIX_ENCODING_NB |
||||
}; |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
/**
|
||||
* Return a channel layout id that matches name, or 0 if no match is found. |
||||
* |
||||
* name can be one or several of the following notations, |
||||
* separated by '+' or '|': |
||||
* - the name of an usual channel layout (mono, stereo, 4.0, quad, 5.0, |
||||
* 5.0(side), 5.1, 5.1(side), 7.1, 7.1(wide), downmix); |
||||
* - the name of a single channel (FL, FR, FC, LFE, BL, BR, FLC, FRC, BC, |
||||
* SL, SR, TC, TFL, TFC, TFR, TBL, TBC, TBR, DL, DR); |
||||
* - a number of channels, in decimal, optionally followed by 'c', yielding |
||||
* the default channel layout for that number of channels (@see |
||||
* av_get_default_channel_layout); |
||||
* - a channel layout mask, in hexadecimal starting with "0x" (see the |
||||
* AV_CH_* macros). |
||||
* |
||||
* Example: "stereo+FC" = "2+FC" = "2c+1c" = "0x7" |
||||
*/ |
||||
uint64_t av_get_channel_layout(const char *name); |
||||
|
||||
/**
|
||||
* Return a description of a channel layout. |
||||
* If nb_channels is <= 0, it is guessed from the channel_layout. |
||||
* |
||||
* @param buf put here the string containing the channel layout |
||||
* @param buf_size size in bytes of the buffer |
||||
*/ |
||||
void av_get_channel_layout_string(char *buf, int buf_size, int nb_channels, uint64_t channel_layout); |
||||
|
||||
struct AVBPrint; |
||||
/**
|
||||
* Append a description of a channel layout to a bprint buffer. |
||||
*/ |
||||
void av_bprint_channel_layout(struct AVBPrint *bp, int nb_channels, uint64_t channel_layout); |
||||
|
||||
/**
|
||||
* Return the number of channels in the channel layout. |
||||
*/ |
||||
int av_get_channel_layout_nb_channels(uint64_t channel_layout); |
||||
|
||||
/**
|
||||
* Return default channel layout for a given number of channels. |
||||
*/ |
||||
int64_t av_get_default_channel_layout(int nb_channels); |
||||
|
||||
/**
|
||||
* Get the index of a channel in channel_layout. |
||||
* |
||||
* @param channel a channel layout describing exactly one channel which must be |
||||
* present in channel_layout. |
||||
* |
||||
* @return index of channel in channel_layout on success, a negative AVERROR |
||||
* on error. |
||||
*/ |
||||
int av_get_channel_layout_channel_index(uint64_t channel_layout, |
||||
uint64_t channel); |
||||
|
||||
/**
|
||||
* Get the channel with the given index in channel_layout. |
||||
*/ |
||||
uint64_t av_channel_layout_extract_channel(uint64_t channel_layout, int index); |
||||
|
||||
/**
|
||||
* Get the name of a given channel. |
||||
* |
||||
* @return channel name on success, NULL on error. |
||||
*/ |
||||
const char *av_get_channel_name(uint64_t channel); |
||||
|
||||
/**
|
||||
* Get the description of a given channel. |
||||
* |
||||
* @param channel a channel layout with a single channel |
||||
* @return channel description on success, NULL on error |
||||
*/ |
||||
const char *av_get_channel_description(uint64_t channel); |
||||
|
||||
/**
|
||||
* Get the value and name of a standard channel layout. |
||||
* |
||||
* @param[in] index index in an internal list, starting at 0 |
||||
* @param[out] layout channel layout mask |
||||
* @param[out] name name of the layout |
||||
* @return 0 if the layout exists, |
||||
* <0 if index is beyond the limits |
||||
*/ |
||||
int av_get_standard_channel_layout(unsigned index, uint64_t *layout, |
||||
const char **name); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_CHANNEL_LAYOUT_H */ |
@ -1,459 +0,0 @@ |
||||
/*
|
||||
* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
/**
|
||||
* @file |
||||
* common internal and external API header |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_COMMON_H |
||||
#define AVUTIL_COMMON_H |
||||
|
||||
#include <errno.h> |
||||
#include <inttypes.h> |
||||
#include <limits.h> |
||||
#include <math.h> |
||||
#include <stdio.h> |
||||
#include <stdlib.h> |
||||
#include <string.h> |
||||
|
||||
#include "attributes.h" |
||||
#include "version.h" |
||||
#include "libavutil/avconfig.h" |
||||
|
||||
#if AV_HAVE_BIGENDIAN |
||||
# define AV_NE(be, le) (be) |
||||
#else |
||||
# define AV_NE(be, le) (le) |
||||
#endif |
||||
|
||||
//rounded division & shift
|
||||
#define RSHIFT(a,b) ((a) > 0 ? ((a) + ((1<<(b))>>1))>>(b) : ((a) + ((1<<(b))>>1)-1)>>(b)) |
||||
/* assume b>0 */ |
||||
#define ROUNDED_DIV(a,b) (((a)>0 ? (a) + ((b)>>1) : (a) - ((b)>>1))/(b)) |
||||
/* assume a>0 and b>0 */ |
||||
#define FF_CEIL_RSHIFT(a,b) (!av_builtin_constant_p(b) ? -((-(a)) >> (b)) \ |
||||
: ((a) + (1<<(b)) - 1) >> (b)) |
||||
#define FFUDIV(a,b) (((a)>0 ?(a):(a)-(b)+1) / (b)) |
||||
#define FFUMOD(a,b) ((a)-(b)*FFUDIV(a,b)) |
||||
#define FFABS(a) ((a) >= 0 ? (a) : (-(a))) |
||||
#define FFSIGN(a) ((a) > 0 ? 1 : -1) |
||||
|
||||
#define FFMAX(a,b) ((a) > (b) ? (a) : (b)) |
||||
#define FFMAX3(a,b,c) FFMAX(FFMAX(a,b),c) |
||||
#define FFMIN(a,b) ((a) > (b) ? (b) : (a)) |
||||
#define FFMIN3(a,b,c) FFMIN(FFMIN(a,b),c) |
||||
|
||||
#define FFSWAP(type,a,b) do{type SWAP_tmp= b; b= a; a= SWAP_tmp;}while(0) |
||||
#define FF_ARRAY_ELEMS(a) (sizeof(a) / sizeof((a)[0])) |
||||
#define FFALIGN(x, a) (((x)+(a)-1)&~((a)-1)) |
||||
|
||||
/* misc math functions */ |
||||
|
||||
/**
|
||||
* Reverse the order of the bits of an 8-bits unsigned integer. |
||||
*/ |
||||
#if FF_API_AV_REVERSE |
||||
extern attribute_deprecated const uint8_t av_reverse[256]; |
||||
#endif |
||||
|
||||
#ifdef HAVE_AV_CONFIG_H |
||||
# include "config.h" |
||||
# include "intmath.h" |
||||
#endif |
||||
|
||||
/* Pull in unguarded fallback defines at the end of this file. */ |
||||
#include "common.h" |
||||
|
||||
#ifndef av_log2 |
||||
av_const int av_log2(unsigned v); |
||||
#endif |
||||
|
||||
#ifndef av_log2_16bit |
||||
av_const int av_log2_16bit(unsigned v); |
||||
#endif |
||||
|
||||
/**
|
||||
* Clip a signed integer value into the amin-amax range. |
||||
* @param a value to clip |
||||
* @param amin minimum value of the clip range |
||||
* @param amax maximum value of the clip range |
||||
* @return clipped value |
||||
*/ |
||||
static av_always_inline av_const int av_clip_c(int a, int amin, int amax) |
||||
{ |
||||
#if defined(HAVE_AV_CONFIG_H) && defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2 |
||||
if (amin > amax) abort(); |
||||
#endif |
||||
if (a < amin) return amin; |
||||
else if (a > amax) return amax; |
||||
else return a; |
||||
} |
||||
|
||||
/**
|
||||
* Clip a signed 64bit integer value into the amin-amax range. |
||||
* @param a value to clip |
||||
* @param amin minimum value of the clip range |
||||
* @param amax maximum value of the clip range |
||||
* @return clipped value |
||||
*/ |
||||
static av_always_inline av_const int64_t av_clip64_c(int64_t a, int64_t amin, int64_t amax) |
||||
{ |
||||
#if defined(HAVE_AV_CONFIG_H) && defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2 |
||||
if (amin > amax) abort(); |
||||
#endif |
||||
if (a < amin) return amin; |
||||
else if (a > amax) return amax; |
||||
else return a; |
||||
} |
||||
|
||||
/**
|
||||
* Clip a signed integer value into the 0-255 range. |
||||
* @param a value to clip |
||||
* @return clipped value |
||||
*/ |
||||
static av_always_inline av_const uint8_t av_clip_uint8_c(int a) |
||||
{ |
||||
if (a&(~0xFF)) return (-a)>>31; |
||||
else return a; |
||||
} |
||||
|
||||
/**
|
||||
* Clip a signed integer value into the -128,127 range. |
||||
* @param a value to clip |
||||
* @return clipped value |
||||
*/ |
||||
static av_always_inline av_const int8_t av_clip_int8_c(int a) |
||||
{ |
||||
if ((a+0x80) & ~0xFF) return (a>>31) ^ 0x7F; |
||||
else return a; |
||||
} |
||||
|
||||
/**
|
||||
* Clip a signed integer value into the 0-65535 range. |
||||
* @param a value to clip |
||||
* @return clipped value |
||||
*/ |
||||
static av_always_inline av_const uint16_t av_clip_uint16_c(int a) |
||||
{ |
||||
if (a&(~0xFFFF)) return (-a)>>31; |
||||
else return a; |
||||
} |
||||
|
||||
/**
|
||||
* Clip a signed integer value into the -32768,32767 range. |
||||
* @param a value to clip |
||||
* @return clipped value |
||||
*/ |
||||
static av_always_inline av_const int16_t av_clip_int16_c(int a) |
||||
{ |
||||
if ((a+0x8000) & ~0xFFFF) return (a>>31) ^ 0x7FFF; |
||||
else return a; |
||||
} |
||||
|
||||
/**
|
||||
* Clip a signed 64-bit integer value into the -2147483648,2147483647 range. |
||||
* @param a value to clip |
||||
* @return clipped value |
||||
*/ |
||||
static av_always_inline av_const int32_t av_clipl_int32_c(int64_t a) |
||||
{ |
||||
if ((a+0x80000000u) & ~UINT64_C(0xFFFFFFFF)) return (a>>63) ^ 0x7FFFFFFF; |
||||
else return (int32_t)a; |
||||
} |
||||
|
||||
/**
|
||||
* Clip a signed integer to an unsigned power of two range. |
||||
* @param a value to clip |
||||
* @param p bit position to clip at |
||||
* @return clipped value |
||||
*/ |
||||
static av_always_inline av_const unsigned av_clip_uintp2_c(int a, int p) |
||||
{ |
||||
if (a & ~((1<<p) - 1)) return -a >> 31 & ((1<<p) - 1); |
||||
else return a; |
||||
} |
||||
|
||||
/**
|
||||
* Add two signed 32-bit values with saturation. |
||||
* |
||||
* @param a one value |
||||
* @param b another value |
||||
* @return sum with signed saturation |
||||
*/ |
||||
static av_always_inline int av_sat_add32_c(int a, int b) |
||||
{ |
||||
return av_clipl_int32((int64_t)a + b); |
||||
} |
||||
|
||||
/**
|
||||
* Add a doubled value to another value with saturation at both stages. |
||||
* |
||||
* @param a first value |
||||
* @param b value doubled and added to a |
||||
* @return sum with signed saturation |
||||
*/ |
||||
static av_always_inline int av_sat_dadd32_c(int a, int b) |
||||
{ |
||||
return av_sat_add32(a, av_sat_add32(b, b)); |
||||
} |
||||
|
||||
/**
|
||||
* Clip a float value into the amin-amax range. |
||||
* @param a value to clip |
||||
* @param amin minimum value of the clip range |
||||
* @param amax maximum value of the clip range |
||||
* @return clipped value |
||||
*/ |
||||
static av_always_inline av_const float av_clipf_c(float a, float amin, float amax) |
||||
{ |
||||
#if defined(HAVE_AV_CONFIG_H) && defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2 |
||||
if (amin > amax) abort(); |
||||
#endif |
||||
if (a < amin) return amin; |
||||
else if (a > amax) return amax; |
||||
else return a; |
||||
} |
||||
|
||||
/**
|
||||
* Clip a double value into the amin-amax range. |
||||
* @param a value to clip |
||||
* @param amin minimum value of the clip range |
||||
* @param amax maximum value of the clip range |
||||
* @return clipped value |
||||
*/ |
||||
static av_always_inline av_const double av_clipd_c(double a, double amin, double amax) |
||||
{ |
||||
#if defined(HAVE_AV_CONFIG_H) && defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2 |
||||
if (amin > amax) abort(); |
||||
#endif |
||||
if (a < amin) return amin; |
||||
else if (a > amax) return amax; |
||||
else return a; |
||||
} |
||||
|
||||
/** Compute ceil(log2(x)).
|
||||
* @param x value used to compute ceil(log2(x)) |
||||
* @return computed ceiling of log2(x) |
||||
*/ |
||||
static av_always_inline av_const int av_ceil_log2_c(int x) |
||||
{ |
||||
return av_log2((x - 1) << 1); |
||||
} |
||||
|
||||
/**
|
||||
* Count number of bits set to one in x |
||||
* @param x value to count bits of |
||||
* @return the number of bits set to one in x |
||||
*/ |
||||
static av_always_inline av_const int av_popcount_c(uint32_t x) |
||||
{ |
||||
x -= (x >> 1) & 0x55555555; |
||||
x = (x & 0x33333333) + ((x >> 2) & 0x33333333); |
||||
x = (x + (x >> 4)) & 0x0F0F0F0F; |
||||
x += x >> 8; |
||||
return (x + (x >> 16)) & 0x3F; |
||||
} |
||||
|
||||
/**
|
||||
* Count number of bits set to one in x |
||||
* @param x value to count bits of |
||||
* @return the number of bits set to one in x |
||||
*/ |
||||
static av_always_inline av_const int av_popcount64_c(uint64_t x) |
||||
{ |
||||
return av_popcount((uint32_t)x) + av_popcount(x >> 32); |
||||
} |
||||
|
||||
#define MKTAG(a,b,c,d) ((a) | ((b) << 8) | ((c) << 16) | ((unsigned)(d) << 24)) |
||||
#define MKBETAG(a,b,c,d) ((d) | ((c) << 8) | ((b) << 16) | ((unsigned)(a) << 24)) |
||||
|
||||
/**
|
||||
* Convert a UTF-8 character (up to 4 bytes) to its 32-bit UCS-4 encoded form. |
||||
* |
||||
* @param val Output value, must be an lvalue of type uint32_t. |
||||
* @param GET_BYTE Expression reading one byte from the input. |
||||
* Evaluated up to 7 times (4 for the currently |
||||
* assigned Unicode range). With a memory buffer |
||||
* input, this could be *ptr++. |
||||
* @param ERROR Expression to be evaluated on invalid input, |
||||
* typically a goto statement. |
||||
*/ |
||||
#define GET_UTF8(val, GET_BYTE, ERROR)\ |
||||
val= GET_BYTE;\
|
||||
{\
|
||||
uint32_t top = (val & 128) >> 1;\
|
||||
if ((val & 0xc0) == 0x80 || val >= 0xFE)\
|
||||
ERROR\
|
||||
while (val & top) {\
|
||||
int tmp= GET_BYTE - 128;\
|
||||
if(tmp>>6)\
|
||||
ERROR\
|
||||
val= (val<<6) + tmp;\
|
||||
top <<= 5;\
|
||||
}\
|
||||
val &= (top << 1) - 1;\
|
||||
} |
||||
|
||||
/**
|
||||
* Convert a UTF-16 character (2 or 4 bytes) to its 32-bit UCS-4 encoded form. |
||||
* |
||||
* @param val Output value, must be an lvalue of type uint32_t. |
||||
* @param GET_16BIT Expression returning two bytes of UTF-16 data converted |
||||
* to native byte order. Evaluated one or two times. |
||||
* @param ERROR Expression to be evaluated on invalid input, |
||||
* typically a goto statement. |
||||
*/ |
||||
#define GET_UTF16(val, GET_16BIT, ERROR)\ |
||||
val = GET_16BIT;\
|
||||
{\
|
||||
unsigned int hi = val - 0xD800;\
|
||||
if (hi < 0x800) {\
|
||||
val = GET_16BIT - 0xDC00;\
|
||||
if (val > 0x3FFU || hi > 0x3FFU)\
|
||||
ERROR\
|
||||
val += (hi<<10) + 0x10000;\
|
||||
}\
|
||||
}\
|
||||
|
||||
/**
|
||||
* @def PUT_UTF8(val, tmp, PUT_BYTE) |
||||
* Convert a 32-bit Unicode character to its UTF-8 encoded form (up to 4 bytes long). |
||||
* @param val is an input-only argument and should be of type uint32_t. It holds |
||||
* a UCS-4 encoded Unicode character that is to be converted to UTF-8. If |
||||
* val is given as a function it is executed only once. |
||||
* @param tmp is a temporary variable and should be of type uint8_t. It |
||||
* represents an intermediate value during conversion that is to be |
||||
* output by PUT_BYTE. |
||||
* @param PUT_BYTE writes the converted UTF-8 bytes to any proper destination. |
||||
* It could be a function or a statement, and uses tmp as the input byte. |
||||
* For example, PUT_BYTE could be "*output++ = tmp;" PUT_BYTE will be |
||||
* executed up to 4 times for values in the valid UTF-8 range and up to |
||||
* 7 times in the general case, depending on the length of the converted |
||||
* Unicode character. |
||||
*/ |
||||
#define PUT_UTF8(val, tmp, PUT_BYTE)\ |
||||
{\
|
||||
int bytes, shift;\
|
||||
uint32_t in = val;\
|
||||
if (in < 0x80) {\
|
||||
tmp = in;\
|
||||
PUT_BYTE\
|
||||
} else {\
|
||||
bytes = (av_log2(in) + 4) / 5;\
|
||||
shift = (bytes - 1) * 6;\
|
||||
tmp = (256 - (256 >> bytes)) | (in >> shift);\
|
||||
PUT_BYTE\
|
||||
while (shift >= 6) {\
|
||||
shift -= 6;\
|
||||
tmp = 0x80 | ((in >> shift) & 0x3f);\
|
||||
PUT_BYTE\
|
||||
}\
|
||||
}\
|
||||
} |
||||
|
||||
/**
|
||||
* @def PUT_UTF16(val, tmp, PUT_16BIT) |
||||
* Convert a 32-bit Unicode character to its UTF-16 encoded form (2 or 4 bytes). |
||||
* @param val is an input-only argument and should be of type uint32_t. It holds |
||||
* a UCS-4 encoded Unicode character that is to be converted to UTF-16. If |
||||
* val is given as a function it is executed only once. |
||||
* @param tmp is a temporary variable and should be of type uint16_t. It |
||||
* represents an intermediate value during conversion that is to be |
||||
* output by PUT_16BIT. |
||||
* @param PUT_16BIT writes the converted UTF-16 data to any proper destination |
||||
* in desired endianness. It could be a function or a statement, and uses tmp |
||||
* as the input byte. For example, PUT_BYTE could be "*output++ = tmp;" |
||||
* PUT_BYTE will be executed 1 or 2 times depending on input character. |
||||
*/ |
||||
#define PUT_UTF16(val, tmp, PUT_16BIT)\ |
||||
{\
|
||||
uint32_t in = val;\
|
||||
if (in < 0x10000) {\
|
||||
tmp = in;\
|
||||
PUT_16BIT\
|
||||
} else {\
|
||||
tmp = 0xD800 | ((in - 0x10000) >> 10);\
|
||||
PUT_16BIT\
|
||||
tmp = 0xDC00 | ((in - 0x10000) & 0x3FF);\
|
||||
PUT_16BIT\
|
||||
}\
|
||||
}\
|
||||
|
||||
|
||||
|
||||
#include "mem.h" |
||||
|
||||
#ifdef HAVE_AV_CONFIG_H |
||||
# include "internal.h" |
||||
#endif /* HAVE_AV_CONFIG_H */ |
||||
|
||||
#endif /* AVUTIL_COMMON_H */ |
||||
|
||||
/*
|
||||
* The following definitions are outside the multiple inclusion guard |
||||
* to ensure they are immediately available in intmath.h. |
||||
*/ |
||||
|
||||
#ifndef av_ceil_log2 |
||||
# define av_ceil_log2 av_ceil_log2_c |
||||
#endif |
||||
#ifndef av_clip |
||||
# define av_clip av_clip_c |
||||
#endif |
||||
#ifndef av_clip64 |
||||
# define av_clip64 av_clip64_c |
||||
#endif |
||||
#ifndef av_clip_uint8 |
||||
# define av_clip_uint8 av_clip_uint8_c |
||||
#endif |
||||
#ifndef av_clip_int8 |
||||
# define av_clip_int8 av_clip_int8_c |
||||
#endif |
||||
#ifndef av_clip_uint16 |
||||
# define av_clip_uint16 av_clip_uint16_c |
||||
#endif |
||||
#ifndef av_clip_int16 |
||||
# define av_clip_int16 av_clip_int16_c |
||||
#endif |
||||
#ifndef av_clipl_int32 |
||||
# define av_clipl_int32 av_clipl_int32_c |
||||
#endif |
||||
#ifndef av_clip_uintp2 |
||||
# define av_clip_uintp2 av_clip_uintp2_c |
||||
#endif |
||||
#ifndef av_sat_add32 |
||||
# define av_sat_add32 av_sat_add32_c |
||||
#endif |
||||
#ifndef av_sat_dadd32 |
||||
# define av_sat_dadd32 av_sat_dadd32_c |
||||
#endif |
||||
#ifndef av_clipf |
||||
# define av_clipf av_clipf_c |
||||
#endif |
||||
#ifndef av_clipd |
||||
# define av_clipd av_clipd_c |
||||
#endif |
||||
#ifndef av_popcount |
||||
# define av_popcount av_popcount_c |
||||
#endif |
||||
#ifndef av_popcount64 |
||||
# define av_popcount64 av_popcount64_c |
||||
#endif |
@ -1,113 +0,0 @@ |
||||
/*
|
||||
* Copyright (c) 2000, 2001, 2002 Fabrice Bellard |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_CPU_H |
||||
#define AVUTIL_CPU_H |
||||
|
||||
#include "attributes.h" |
||||
|
||||
#define AV_CPU_FLAG_FORCE 0x80000000 /* force usage of selected flags (OR) */ |
||||
|
||||
/* lower 16 bits - CPU features */ |
||||
#define AV_CPU_FLAG_MMX 0x0001 ///< standard MMX
|
||||
#define AV_CPU_FLAG_MMXEXT 0x0002 ///< SSE integer functions or AMD MMX ext
|
||||
#define AV_CPU_FLAG_MMX2 0x0002 ///< SSE integer functions or AMD MMX ext
|
||||
#define AV_CPU_FLAG_3DNOW 0x0004 ///< AMD 3DNOW
|
||||
#define AV_CPU_FLAG_SSE 0x0008 ///< SSE functions
|
||||
#define AV_CPU_FLAG_SSE2 0x0010 ///< PIV SSE2 functions
|
||||
#define AV_CPU_FLAG_SSE2SLOW 0x40000000 ///< SSE2 supported, but usually not faster
|
||||
#define AV_CPU_FLAG_3DNOWEXT 0x0020 ///< AMD 3DNowExt
|
||||
#define AV_CPU_FLAG_SSE3 0x0040 ///< Prescott SSE3 functions
|
||||
#define AV_CPU_FLAG_SSE3SLOW 0x20000000 ///< SSE3 supported, but usually not faster
|
||||
#define AV_CPU_FLAG_SSSE3 0x0080 ///< Conroe SSSE3 functions
|
||||
#define AV_CPU_FLAG_ATOM 0x10000000 ///< Atom processor, some SSSE3 instructions are slower
|
||||
#define AV_CPU_FLAG_SSE4 0x0100 ///< Penryn SSE4.1 functions
|
||||
#define AV_CPU_FLAG_SSE42 0x0200 ///< Nehalem SSE4.2 functions
|
||||
#define AV_CPU_FLAG_AVX 0x4000 ///< AVX functions: requires OS support even if YMM registers aren't used
|
||||
#define AV_CPU_FLAG_XOP 0x0400 ///< Bulldozer XOP functions
|
||||
#define AV_CPU_FLAG_FMA4 0x0800 ///< Bulldozer FMA4 functions
|
||||
// #if LIBAVUTIL_VERSION_MAJOR <52
|
||||
#define AV_CPU_FLAG_CMOV 0x1001000 ///< supports cmov instruction
|
||||
// #else
|
||||
// #define AV_CPU_FLAG_CMOV 0x1000 ///< supports cmov instruction
|
||||
// #endif
|
||||
|
||||
#define AV_CPU_FLAG_ALTIVEC 0x0001 ///< standard
|
||||
|
||||
#define AV_CPU_FLAG_ARMV5TE (1 << 0) |
||||
#define AV_CPU_FLAG_ARMV6 (1 << 1) |
||||
#define AV_CPU_FLAG_ARMV6T2 (1 << 2) |
||||
#define AV_CPU_FLAG_VFP (1 << 3) |
||||
#define AV_CPU_FLAG_VFPV3 (1 << 4) |
||||
#define AV_CPU_FLAG_NEON (1 << 5) |
||||
|
||||
/**
|
||||
* Return the flags which specify extensions supported by the CPU. |
||||
* The returned value is affected by av_force_cpu_flags() if that was used |
||||
* before. So av_get_cpu_flags() can easily be used in a application to |
||||
* detect the enabled cpu flags. |
||||
*/ |
||||
int av_get_cpu_flags(void); |
||||
|
||||
/**
|
||||
* Disables cpu detection and forces the specified flags. |
||||
* -1 is a special case that disables forcing of specific flags. |
||||
*/ |
||||
void av_force_cpu_flags(int flags); |
||||
|
||||
/**
|
||||
* Set a mask on flags returned by av_get_cpu_flags(). |
||||
* This function is mainly useful for testing. |
||||
* Please use av_force_cpu_flags() and av_get_cpu_flags() instead which are more flexible |
||||
* |
||||
* @warning this function is not thread safe. |
||||
*/ |
||||
attribute_deprecated void av_set_cpu_flags_mask(int mask); |
||||
|
||||
/**
|
||||
* Parse CPU flags from a string. |
||||
* |
||||
* The returned flags contain the specified flags as well as related unspecified flags. |
||||
* |
||||
* This function exists only for compatibility with libav. |
||||
* Please use av_parse_cpu_caps() when possible. |
||||
* @return a combination of AV_CPU_* flags, negative on error. |
||||
*/ |
||||
attribute_deprecated |
||||
int av_parse_cpu_flags(const char *s); |
||||
|
||||
/**
|
||||
* Parse CPU caps from a string and update the given AV_CPU_* flags based on that. |
||||
* |
||||
* @return negative on error. |
||||
*/ |
||||
int av_parse_cpu_caps(unsigned *flags, const char *s); |
||||
|
||||
/**
|
||||
* @return the number of logical CPU cores present. |
||||
*/ |
||||
int av_cpu_count(void); |
||||
|
||||
/* The following CPU-specific functions shall not be called directly. */ |
||||
int ff_get_cpu_flags_arm(void); |
||||
int ff_get_cpu_flags_ppc(void); |
||||
int ff_get_cpu_flags_x86(void); |
||||
|
||||
#endif /* AVUTIL_CPU_H */ |
@ -1,84 +0,0 @@ |
||||
/*
|
||||
* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_CRC_H |
||||
#define AVUTIL_CRC_H |
||||
|
||||
#include <stdint.h> |
||||
#include <stddef.h> |
||||
#include "attributes.h" |
||||
|
||||
/**
|
||||
* @defgroup lavu_crc32 CRC32 |
||||
* @ingroup lavu_crypto |
||||
* @{ |
||||
*/ |
||||
|
||||
typedef uint32_t AVCRC; |
||||
|
||||
typedef enum { |
||||
AV_CRC_8_ATM, |
||||
AV_CRC_16_ANSI, |
||||
AV_CRC_16_CCITT, |
||||
AV_CRC_32_IEEE, |
||||
AV_CRC_32_IEEE_LE, /*< reversed bitorder version of AV_CRC_32_IEEE */ |
||||
AV_CRC_MAX, /*< Not part of public API! Do not use outside libavutil. */ |
||||
}AVCRCId; |
||||
|
||||
/**
|
||||
* Initialize a CRC table. |
||||
* @param ctx must be an array of size sizeof(AVCRC)*257 or sizeof(AVCRC)*1024 |
||||
* @param le If 1, the lowest bit represents the coefficient for the highest |
||||
* exponent of the corresponding polynomial (both for poly and |
||||
* actual CRC). |
||||
* If 0, you must swap the CRC parameter and the result of av_crc |
||||
* if you need the standard representation (can be simplified in |
||||
* most cases to e.g. bswap16): |
||||
* av_bswap32(crc << (32-bits)) |
||||
* @param bits number of bits for the CRC |
||||
* @param poly generator polynomial without the x**bits coefficient, in the |
||||
* representation as specified by le |
||||
* @param ctx_size size of ctx in bytes |
||||
* @return <0 on failure |
||||
*/ |
||||
int av_crc_init(AVCRC *ctx, int le, int bits, uint32_t poly, int ctx_size); |
||||
|
||||
/**
|
||||
* Get an initialized standard CRC table. |
||||
* @param crc_id ID of a standard CRC |
||||
* @return a pointer to the CRC table or NULL on failure |
||||
*/ |
||||
const AVCRC *av_crc_get_table(AVCRCId crc_id); |
||||
|
||||
/**
|
||||
* Calculate the CRC of a block. |
||||
* @param crc CRC of previous blocks if any or initial value for CRC |
||||
* @return CRC updated with the data from the given block |
||||
* |
||||
* @see av_crc_init() "le" parameter |
||||
*/ |
||||
uint32_t av_crc(const AVCRC *ctx, uint32_t crc, |
||||
const uint8_t *buffer, size_t length) av_pure; |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_CRC_H */ |
@ -1,152 +0,0 @@ |
||||
/*
|
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
/**
|
||||
* @file |
||||
* Public dictionary API. |
||||
* @deprecated |
||||
* AVDictionary is provided for compatibility with libav. It is both in |
||||
* implementation as well as API inefficient. It does not scale and is |
||||
* extremely slow with large dictionaries. |
||||
* It is recommended that new code uses our tree container from tree.c/h |
||||
* where applicable, which uses AVL trees to achieve O(log n) performance. |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_DICT_H |
||||
#define AVUTIL_DICT_H |
||||
|
||||
/**
|
||||
* @addtogroup lavu_dict AVDictionary |
||||
* @ingroup lavu_data |
||||
* |
||||
* @brief Simple key:value store |
||||
* |
||||
* @{ |
||||
* Dictionaries are used for storing key:value pairs. To create |
||||
* an AVDictionary, simply pass an address of a NULL pointer to |
||||
* av_dict_set(). NULL can be used as an empty dictionary wherever |
||||
* a pointer to an AVDictionary is required. |
||||
* Use av_dict_get() to retrieve an entry or iterate over all |
||||
* entries and finally av_dict_free() to free the dictionary |
||||
* and all its contents. |
||||
* |
||||
* @code |
||||
* AVDictionary *d = NULL; // "create" an empty dictionary
|
||||
* av_dict_set(&d, "foo", "bar", 0); // add an entry
|
||||
* |
||||
* char *k = av_strdup("key"); // if your strings are already allocated,
|
||||
* char *v = av_strdup("value"); // you can avoid copying them like this
|
||||
* av_dict_set(&d, k, v, AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL); |
||||
* |
||||
* AVDictionaryEntry *t = NULL; |
||||
* while (t = av_dict_get(d, "", t, AV_DICT_IGNORE_SUFFIX)) { |
||||
* <....> // iterate over all entries in d
|
||||
* } |
||||
* |
||||
* av_dict_free(&d); |
||||
* @endcode |
||||
* |
||||
*/ |
||||
|
||||
#define AV_DICT_MATCH_CASE 1 |
||||
#define AV_DICT_IGNORE_SUFFIX 2 |
||||
#define AV_DICT_DONT_STRDUP_KEY 4 /**< Take ownership of a key that's been |
||||
allocated with av_malloc() and children. */ |
||||
#define AV_DICT_DONT_STRDUP_VAL 8 /**< Take ownership of a value that's been |
||||
allocated with av_malloc() and chilren. */ |
||||
#define AV_DICT_DONT_OVERWRITE 16 ///< Don't overwrite existing entries.
|
||||
#define AV_DICT_APPEND 32 /**< If the entry already exists, append to it. Note that no |
||||
delimiter is added, the strings are simply concatenated. */ |
||||
|
||||
typedef struct AVDictionaryEntry { |
||||
char *key; |
||||
char *value; |
||||
} AVDictionaryEntry; |
||||
|
||||
typedef struct AVDictionary AVDictionary; |
||||
|
||||
/**
|
||||
* Get a dictionary entry with matching key. |
||||
* |
||||
* @param prev Set to the previous matching element to find the next. |
||||
* If set to NULL the first matching element is returned. |
||||
* @param flags Allows case as well as suffix-insensitive comparisons. |
||||
* @return Found entry or NULL, changing key or value leads to undefined behavior. |
||||
*/ |
||||
AVDictionaryEntry * |
||||
av_dict_get(AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags); |
||||
|
||||
/**
|
||||
* Get number of entries in dictionary. |
||||
* |
||||
* @param m dictionary |
||||
* @return number of entries in dictionary |
||||
*/ |
||||
int av_dict_count(const AVDictionary *m); |
||||
|
||||
/**
|
||||
* Set the given entry in *pm, overwriting an existing entry. |
||||
* |
||||
* @param pm pointer to a pointer to a dictionary struct. If *pm is NULL |
||||
* a dictionary struct is allocated and put in *pm. |
||||
* @param key entry key to add to *pm (will be av_strduped depending on flags) |
||||
* @param value entry value to add to *pm (will be av_strduped depending on flags). |
||||
* Passing a NULL value will cause an existing entry to be deleted. |
||||
* @return >= 0 on success otherwise an error code <0 |
||||
*/ |
||||
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags); |
||||
|
||||
/**
|
||||
* Parse the key/value pairs list and add to a dictionary. |
||||
* |
||||
* @param key_val_sep a 0-terminated list of characters used to separate |
||||
* key from value |
||||
* @param pairs_sep a 0-terminated list of characters used to separate |
||||
* two pairs from each other |
||||
* @param flags flags to use when adding to dictionary. |
||||
* AV_DICT_DONT_STRDUP_KEY and AV_DICT_DONT_STRDUP_VAL |
||||
* are ignored since the key/value tokens will always |
||||
* be duplicated. |
||||
* @return 0 on success, negative AVERROR code on failure |
||||
*/ |
||||
int av_dict_parse_string(AVDictionary **pm, const char *str, |
||||
const char *key_val_sep, const char *pairs_sep, |
||||
int flags); |
||||
|
||||
/**
|
||||
* Copy entries from one AVDictionary struct into another. |
||||
* @param dst pointer to a pointer to a AVDictionary struct. If *dst is NULL, |
||||
* this function will allocate a struct for you and put it in *dst |
||||
* @param src pointer to source AVDictionary struct |
||||
* @param flags flags to use when setting entries in *dst |
||||
* @note metadata is read using the AV_DICT_IGNORE_SUFFIX flag |
||||
*/ |
||||
void av_dict_copy(AVDictionary **dst, AVDictionary *src, int flags); |
||||
|
||||
/**
|
||||
* Free all the memory allocated for an AVDictionary struct |
||||
* and all keys and values. |
||||
*/ |
||||
void av_dict_free(AVDictionary **m); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_DICT_H */ |
@ -1,117 +0,0 @@ |
||||
/*
|
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
/**
|
||||
* @file |
||||
* error code definitions |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_ERROR_H |
||||
#define AVUTIL_ERROR_H |
||||
|
||||
#include <errno.h> |
||||
#include <stddef.h> |
||||
|
||||
/**
|
||||
* @addtogroup lavu_error |
||||
* |
||||
* @{ |
||||
*/ |
||||
|
||||
|
||||
/* error handling */ |
||||
#if EDOM > 0 |
||||
#define AVERROR(e) (-(e)) ///< Returns a negative error code from a POSIX error code, to return from library functions.
|
||||
#define AVUNERROR(e) (-(e)) ///< Returns a POSIX error code from a library function error return value.
|
||||
#else |
||||
/* Some platforms have E* and errno already negated. */ |
||||
#define AVERROR(e) (e) |
||||
#define AVUNERROR(e) (e) |
||||
#endif |
||||
|
||||
#define FFERRTAG(a, b, c, d) (-(int)MKTAG(a, b, c, d)) |
||||
|
||||
#define AVERROR_BSF_NOT_FOUND FFERRTAG(0xF8,'B','S','F') ///< Bitstream filter not found
|
||||
#define AVERROR_BUG FFERRTAG( 'B','U','G','!') ///< Internal bug, also see AVERROR_BUG2
|
||||
#define AVERROR_BUFFER_TOO_SMALL FFERRTAG( 'B','U','F','S') ///< Buffer too small
|
||||
#define AVERROR_DECODER_NOT_FOUND FFERRTAG(0xF8,'D','E','C') ///< Decoder not found
|
||||
#define AVERROR_DEMUXER_NOT_FOUND FFERRTAG(0xF8,'D','E','M') ///< Demuxer not found
|
||||
#define AVERROR_ENCODER_NOT_FOUND FFERRTAG(0xF8,'E','N','C') ///< Encoder not found
|
||||
#define AVERROR_EOF FFERRTAG( 'E','O','F',' ') ///< End of file
|
||||
#define AVERROR_EXIT FFERRTAG( 'E','X','I','T') ///< Immediate exit was requested; the called function should not be restarted
|
||||
#define AVERROR_EXTERNAL FFERRTAG( 'E','X','T',' ') ///< Generic error in an external library
|
||||
#define AVERROR_FILTER_NOT_FOUND FFERRTAG(0xF8,'F','I','L') ///< Filter not found
|
||||
#define AVERROR_INVALIDDATA FFERRTAG( 'I','N','D','A') ///< Invalid data found when processing input
|
||||
#define AVERROR_MUXER_NOT_FOUND FFERRTAG(0xF8,'M','U','X') ///< Muxer not found
|
||||
#define AVERROR_OPTION_NOT_FOUND FFERRTAG(0xF8,'O','P','T') ///< Option not found
|
||||
#define AVERROR_PATCHWELCOME FFERRTAG( 'P','A','W','E') ///< Not yet implemented in FFmpeg, patches welcome
|
||||
#define AVERROR_PROTOCOL_NOT_FOUND FFERRTAG(0xF8,'P','R','O') ///< Protocol not found
|
||||
|
||||
#define AVERROR_STREAM_NOT_FOUND FFERRTAG(0xF8,'S','T','R') ///< Stream not found
|
||||
/**
|
||||
* This is semantically identical to AVERROR_BUG |
||||
* it has been introduced in Libav after our AVERROR_BUG and with a modified value. |
||||
*/ |
||||
#define AVERROR_BUG2 FFERRTAG( 'B','U','G',' ') |
||||
#define AVERROR_UNKNOWN FFERRTAG( 'U','N','K','N') ///< Unknown error, typically from an external library
|
||||
#define AVERROR_EXPERIMENTAL (-0x2bb2afa8) ///< Requested feature is flagged experimental. Set strict_std_compliance if you really want to use it.
|
||||
|
||||
#define AV_ERROR_MAX_STRING_SIZE 64 |
||||
|
||||
/**
|
||||
* Put a description of the AVERROR code errnum in errbuf. |
||||
* In case of failure the global variable errno is set to indicate the |
||||
* error. Even in case of failure av_strerror() will print a generic |
||||
* error message indicating the errnum provided to errbuf. |
||||
* |
||||
* @param errnum error code to describe |
||||
* @param errbuf buffer to which description is written |
||||
* @param errbuf_size the size in bytes of errbuf |
||||
* @return 0 on success, a negative value if a description for errnum |
||||
* cannot be found |
||||
*/ |
||||
int av_strerror(int errnum, char *errbuf, size_t errbuf_size); |
||||
|
||||
/**
|
||||
* Fill the provided buffer with a string containing an error string |
||||
* corresponding to the AVERROR code errnum. |
||||
* |
||||
* @param errbuf a buffer |
||||
* @param errbuf_size size in bytes of errbuf |
||||
* @param errnum error code to describe |
||||
* @return the buffer in input, filled with the error description |
||||
* @see av_strerror() |
||||
*/ |
||||
static inline char *av_make_error_string(char *errbuf, size_t errbuf_size, int errnum) |
||||
{ |
||||
av_strerror(errnum, errbuf, errbuf_size); |
||||
return errbuf; |
||||
} |
||||
|
||||
/**
|
||||
* Convenience macro, the return value should be used only directly in |
||||
* function arguments but never stand-alone. |
||||
*/ |
||||
#define av_err2str(errnum) \ |
||||
av_make_error_string((char[AV_ERROR_MAX_STRING_SIZE]){0}, AV_ERROR_MAX_STRING_SIZE, errnum) |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_ERROR_H */ |
@ -1,113 +0,0 @@ |
||||
/*
|
||||
* Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
/**
|
||||
* @file |
||||
* simple arithmetic expression evaluator |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_EVAL_H |
||||
#define AVUTIL_EVAL_H |
||||
|
||||
#include "avutil.h" |
||||
|
||||
typedef struct AVExpr AVExpr; |
||||
|
||||
/**
|
||||
* Parse and evaluate an expression. |
||||
* Note, this is significantly slower than av_expr_eval(). |
||||
* |
||||
* @param res a pointer to a double where is put the result value of |
||||
* the expression, or NAN in case of error |
||||
* @param s expression as a zero terminated string, for example "1+2^3+5*5+sin(2/3)" |
||||
* @param const_names NULL terminated array of zero terminated strings of constant identifiers, for example {"PI", "E", 0} |
||||
* @param const_values a zero terminated array of values for the identifiers from const_names |
||||
* @param func1_names NULL terminated array of zero terminated strings of funcs1 identifiers |
||||
* @param funcs1 NULL terminated array of function pointers for functions which take 1 argument |
||||
* @param func2_names NULL terminated array of zero terminated strings of funcs2 identifiers |
||||
* @param funcs2 NULL terminated array of function pointers for functions which take 2 arguments |
||||
* @param opaque a pointer which will be passed to all functions from funcs1 and funcs2 |
||||
* @param log_ctx parent logging context |
||||
* @return 0 in case of success, a negative value corresponding to an |
||||
* AVERROR code otherwise |
||||
*/ |
||||
int av_expr_parse_and_eval(double *res, const char *s, |
||||
const char * const *const_names, const double *const_values, |
||||
const char * const *func1_names, double (* const *funcs1)(void *, double), |
||||
const char * const *func2_names, double (* const *funcs2)(void *, double, double), |
||||
void *opaque, int log_offset, void *log_ctx); |
||||
|
||||
/**
|
||||
* Parse an expression. |
||||
* |
||||
* @param expr a pointer where is put an AVExpr containing the parsed |
||||
* value in case of successful parsing, or NULL otherwise. |
||||
* The pointed to AVExpr must be freed with av_expr_free() by the user |
||||
* when it is not needed anymore. |
||||
* @param s expression as a zero terminated string, for example "1+2^3+5*5+sin(2/3)" |
||||
* @param const_names NULL terminated array of zero terminated strings of constant identifiers, for example {"PI", "E", 0} |
||||
* @param func1_names NULL terminated array of zero terminated strings of funcs1 identifiers |
||||
* @param funcs1 NULL terminated array of function pointers for functions which take 1 argument |
||||
* @param func2_names NULL terminated array of zero terminated strings of funcs2 identifiers |
||||
* @param funcs2 NULL terminated array of function pointers for functions which take 2 arguments |
||||
* @param log_ctx parent logging context |
||||
* @return 0 in case of success, a negative value corresponding to an |
||||
* AVERROR code otherwise |
||||
*/ |
||||
int av_expr_parse(AVExpr **expr, const char *s, |
||||
const char * const *const_names, |
||||
const char * const *func1_names, double (* const *funcs1)(void *, double), |
||||
const char * const *func2_names, double (* const *funcs2)(void *, double, double), |
||||
int log_offset, void *log_ctx); |
||||
|
||||
/**
|
||||
* Evaluate a previously parsed expression. |
||||
* |
||||
* @param const_values a zero terminated array of values for the identifiers from av_expr_parse() const_names |
||||
* @param opaque a pointer which will be passed to all functions from funcs1 and funcs2 |
||||
* @return the value of the expression |
||||
*/ |
||||
double av_expr_eval(AVExpr *e, const double *const_values, void *opaque); |
||||
|
||||
/**
|
||||
* Free a parsed expression previously created with av_expr_parse(). |
||||
*/ |
||||
void av_expr_free(AVExpr *e); |
||||
|
||||
/**
|
||||
* Parse the string in numstr and return its value as a double. If |
||||
* the string is empty, contains only whitespaces, or does not contain |
||||
* an initial substring that has the expected syntax for a |
||||
* floating-point number, no conversion is performed. In this case, |
||||
* returns a value of zero and the value returned in tail is the value |
||||
* of numstr. |
||||
* |
||||
* @param numstr a string representing a number, may contain one of |
||||
* the International System number postfixes, for example 'K', 'M', |
||||
* 'G'. If 'i' is appended after the postfix, powers of 2 are used |
||||
* instead of powers of 10. The 'B' postfix multiplies the value for |
||||
* 8, and can be appended after another postfix or used alone. This |
||||
* allows using for example 'KB', 'MiB', 'G' and 'B' as postfix. |
||||
* @param tail if non-NULL puts here the pointer to the char next |
||||
* after the last parsed character |
||||
*/ |
||||
double av_strtod(const char *numstr, char **tail); |
||||
|
||||
#endif /* AVUTIL_EVAL_H */ |
@ -1,144 +0,0 @@ |
||||
/*
|
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
/**
|
||||
* @file |
||||
* a very simple circular buffer FIFO implementation |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_FIFO_H |
||||
#define AVUTIL_FIFO_H |
||||
|
||||
#include <stdint.h> |
||||
#include "avutil.h" |
||||
#include "attributes.h" |
||||
|
||||
typedef struct AVFifoBuffer { |
||||
uint8_t *buffer; |
||||
uint8_t *rptr, *wptr, *end; |
||||
uint32_t rndx, wndx; |
||||
} AVFifoBuffer; |
||||
|
||||
/**
|
||||
* Initialize an AVFifoBuffer. |
||||
* @param size of FIFO |
||||
* @return AVFifoBuffer or NULL in case of memory allocation failure |
||||
*/ |
||||
AVFifoBuffer *av_fifo_alloc(unsigned int size); |
||||
|
||||
/**
|
||||
* Free an AVFifoBuffer. |
||||
* @param f AVFifoBuffer to free |
||||
*/ |
||||
void av_fifo_free(AVFifoBuffer *f); |
||||
|
||||
/**
|
||||
* Reset the AVFifoBuffer to the state right after av_fifo_alloc, in particular it is emptied. |
||||
* @param f AVFifoBuffer to reset |
||||
*/ |
||||
void av_fifo_reset(AVFifoBuffer *f); |
||||
|
||||
/**
|
||||
* Return the amount of data in bytes in the AVFifoBuffer, that is the |
||||
* amount of data you can read from it. |
||||
* @param f AVFifoBuffer to read from |
||||
* @return size |
||||
*/ |
||||
int av_fifo_size(AVFifoBuffer *f); |
||||
|
||||
/**
|
||||
* Return the amount of space in bytes in the AVFifoBuffer, that is the |
||||
* amount of data you can write into it. |
||||
* @param f AVFifoBuffer to write into |
||||
* @return size |
||||
*/ |
||||
int av_fifo_space(AVFifoBuffer *f); |
||||
|
||||
/**
|
||||
* Feed data from an AVFifoBuffer to a user-supplied callback. |
||||
* @param f AVFifoBuffer to read from |
||||
* @param buf_size number of bytes to read |
||||
* @param func generic read function |
||||
* @param dest data destination |
||||
*/ |
||||
int av_fifo_generic_read(AVFifoBuffer *f, void *dest, int buf_size, void (*func)(void*, void*, int)); |
||||
|
||||
/**
|
||||
* Feed data from a user-supplied callback to an AVFifoBuffer. |
||||
* @param f AVFifoBuffer to write to |
||||
* @param src data source; non-const since it may be used as a |
||||
* modifiable context by the function defined in func |
||||
* @param size number of bytes to write |
||||
* @param func generic write function; the first parameter is src, |
||||
* the second is dest_buf, the third is dest_buf_size. |
||||
* func must return the number of bytes written to dest_buf, or <= 0 to |
||||
* indicate no more data available to write. |
||||
* If func is NULL, src is interpreted as a simple byte array for source data. |
||||
* @return the number of bytes written to the FIFO |
||||
*/ |
||||
int av_fifo_generic_write(AVFifoBuffer *f, void *src, int size, int (*func)(void*, void*, int)); |
||||
|
||||
/**
|
||||
* Resize an AVFifoBuffer. |
||||
* In case of reallocation failure, the old FIFO is kept unchanged. |
||||
* |
||||
* @param f AVFifoBuffer to resize |
||||
* @param size new AVFifoBuffer size in bytes |
||||
* @return <0 for failure, >=0 otherwise |
||||
*/ |
||||
int av_fifo_realloc2(AVFifoBuffer *f, unsigned int size); |
||||
|
||||
/**
|
||||
* Enlarge an AVFifoBuffer. |
||||
* In case of reallocation failure, the old FIFO is kept unchanged. |
||||
* The new fifo size may be larger than the requested size. |
||||
* |
||||
* @param f AVFifoBuffer to resize |
||||
* @param additional_space the amount of space in bytes to allocate in addition to av_fifo_size() |
||||
* @return <0 for failure, >=0 otherwise |
||||
*/ |
||||
int av_fifo_grow(AVFifoBuffer *f, unsigned int additional_space); |
||||
|
||||
/**
|
||||
* Read and discard the specified amount of data from an AVFifoBuffer. |
||||
* @param f AVFifoBuffer to read from |
||||
* @param size amount of data to read in bytes |
||||
*/ |
||||
void av_fifo_drain(AVFifoBuffer *f, int size); |
||||
|
||||
/**
|
||||
* Return a pointer to the data stored in a FIFO buffer at a certain offset. |
||||
* The FIFO buffer is not modified. |
||||
* |
||||
* @param f AVFifoBuffer to peek at, f must be non-NULL |
||||
* @param offs an offset in bytes, its absolute value must be less |
||||
* than the used buffer size or the returned pointer will |
||||
* point outside to the buffer data. |
||||
* The used buffer size can be checked with av_fifo_size(). |
||||
*/ |
||||
static inline uint8_t *av_fifo_peek2(const AVFifoBuffer *f, int offs) |
||||
{ |
||||
uint8_t *ptr = f->rptr + offs; |
||||
if (ptr >= f->end) |
||||
ptr = f->buffer + (ptr - f->end); |
||||
else if (ptr < f->buffer) |
||||
ptr = f->end - (f->buffer - ptr); |
||||
return ptr; |
||||
} |
||||
|
||||
#endif /* AVUTIL_FIFO_H */ |
@ -1,66 +0,0 @@ |
||||
/*
|
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_FILE_H |
||||
#define AVUTIL_FILE_H |
||||
|
||||
#include <stdint.h> |
||||
|
||||
#include "avutil.h" |
||||
|
||||
/**
|
||||
* @file |
||||
* Misc file utilities. |
||||
*/ |
||||
|
||||
/**
|
||||
* Read the file with name filename, and put its content in a newly |
||||
* allocated buffer or map it with mmap() when available. |
||||
* In case of success set *bufptr to the read or mmapped buffer, and |
||||
* *size to the size in bytes of the buffer in *bufptr. |
||||
* The returned buffer must be released with av_file_unmap(). |
||||
* |
||||
* @param log_offset loglevel offset used for logging |
||||
* @param log_ctx context used for logging |
||||
* @return a non negative number in case of success, a negative value |
||||
* corresponding to an AVERROR error code in case of failure |
||||
*/ |
||||
int av_file_map(const char *filename, uint8_t **bufptr, size_t *size, |
||||
int log_offset, void *log_ctx); |
||||
|
||||
/**
|
||||
* Unmap or free the buffer bufptr created by av_file_map(). |
||||
* |
||||
* @param size size in bytes of bufptr, must be the same as returned |
||||
* by av_file_map() |
||||
*/ |
||||
void av_file_unmap(uint8_t *bufptr, size_t size); |
||||
|
||||
/**
|
||||
* Wrapper to work around the lack of mkstemp() on mingw. |
||||
* Also, tries to create file in /tmp first, if possible. |
||||
* *prefix can be a character constant; *filename will be allocated internally. |
||||
* @return file descriptor of opened file (or -1 on error) |
||||
* and opened file name in **filename. |
||||
* @note On very old libcs it is necessary to set a secure umask before |
||||
* calling this, av_tempfile() can't call umask itself as it is used in |
||||
* libraries and could interfere with the calling application. |
||||
*/ |
||||
int av_tempfile(const char *prefix, char **filename, int log_offset, void *log_ctx); |
||||
|
||||
#endif /* AVUTIL_FILE_H */ |
@ -1,607 +0,0 @@ |
||||
/*
|
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_FRAME_H |
||||
#define AVUTIL_FRAME_H |
||||
|
||||
#include <stdint.h> |
||||
|
||||
#include "libavcodec/version.h" |
||||
|
||||
#include "avutil.h" |
||||
#include "buffer.h" |
||||
#include "dict.h" |
||||
#include "rational.h" |
||||
#include "samplefmt.h" |
||||
|
||||
enum AVFrameSideDataType { |
||||
/**
|
||||
* The data is the AVPanScan struct defined in libavcodec. |
||||
*/ |
||||
AV_FRAME_DATA_PANSCAN, |
||||
}; |
||||
|
||||
typedef struct AVFrameSideData { |
||||
enum AVFrameSideDataType type; |
||||
uint8_t *data; |
||||
int size; |
||||
AVDictionary *metadata; |
||||
} AVFrameSideData; |
||||
|
||||
/**
|
||||
* This structure describes decoded (raw) audio or video data. |
||||
* |
||||
* AVFrame must be allocated using av_frame_alloc(). Note that this only |
||||
* allocates the AVFrame itself, the buffers for the data must be managed |
||||
* through other means (see below). |
||||
* AVFrame must be freed with av_frame_free(). |
||||
* |
||||
* AVFrame is typically allocated once and then reused multiple times to hold |
||||
* different data (e.g. a single AVFrame to hold frames received from a |
||||
* decoder). In such a case, av_frame_unref() will free any references held by |
||||
* the frame and reset it to its original clean state before it |
||||
* is reused again. |
||||
* |
||||
* The data described by an AVFrame is usually reference counted through the |
||||
* AVBuffer API. The underlying buffer references are stored in AVFrame.buf / |
||||
* AVFrame.extended_buf. An AVFrame is considered to be reference counted if at |
||||
* least one reference is set, i.e. if AVFrame.buf[0] != NULL. In such a case, |
||||
* every single data plane must be contained in one of the buffers in |
||||
* AVFrame.buf or AVFrame.extended_buf. |
||||
* There may be a single buffer for all the data, or one separate buffer for |
||||
* each plane, or anything in between. |
||||
* |
||||
* sizeof(AVFrame) is not a part of the public ABI, so new fields may be added |
||||
* to the end with a minor bump. |
||||
* Similarly fields that are marked as to be only accessed by |
||||
* av_opt_ptr() can be reordered. This allows 2 forks to add fields |
||||
* without breaking compatibility with each other. |
||||
*/ |
||||
typedef struct AVFrame { |
||||
#define AV_NUM_DATA_POINTERS 8 |
||||
/**
|
||||
* pointer to the picture/channel planes. |
||||
* This might be different from the first allocated byte |
||||
* |
||||
* Some decoders access areas outside 0,0 - width,height, please |
||||
* see avcodec_align_dimensions2(). Some filters and swscale can read |
||||
* up to 16 bytes beyond the planes, if these filters are to be used, |
||||
* then 16 extra bytes must be allocated. |
||||
*/ |
||||
uint8_t *data[AV_NUM_DATA_POINTERS]; |
||||
|
||||
/**
|
||||
* For video, size in bytes of each picture line. |
||||
* For audio, size in bytes of each plane. |
||||
* |
||||
* For audio, only linesize[0] may be set. For planar audio, each channel |
||||
* plane must be the same size. |
||||
* |
||||
* For video the linesizes should be multiplies of the CPUs alignment |
||||
* preference, this is 16 or 32 for modern desktop CPUs. |
||||
* Some code requires such alignment other code can be slower without |
||||
* correct alignment, for yet other it makes no difference. |
||||
*/ |
||||
int linesize[AV_NUM_DATA_POINTERS]; |
||||
|
||||
/**
|
||||
* pointers to the data planes/channels. |
||||
* |
||||
* For video, this should simply point to data[]. |
||||
* |
||||
* For planar audio, each channel has a separate data pointer, and |
||||
* linesize[0] contains the size of each channel buffer. |
||||
* For packed audio, there is just one data pointer, and linesize[0] |
||||
* contains the total size of the buffer for all channels. |
||||
* |
||||
* Note: Both data and extended_data should always be set in a valid frame, |
||||
* but for planar audio with more channels that can fit in data, |
||||
* extended_data must be used in order to access all channels. |
||||
*/ |
||||
uint8_t **extended_data; |
||||
|
||||
/**
|
||||
* width and height of the video frame |
||||
*/ |
||||
int width, height; |
||||
|
||||
/**
|
||||
* number of audio samples (per channel) described by this frame |
||||
*/ |
||||
int nb_samples; |
||||
|
||||
/**
|
||||
* format of the frame, -1 if unknown or unset |
||||
* Values correspond to enum AVPixelFormat for video frames, |
||||
* enum AVSampleFormat for audio) |
||||
*/ |
||||
int format; |
||||
|
||||
/**
|
||||
* 1 -> keyframe, 0-> not |
||||
*/ |
||||
int key_frame; |
||||
|
||||
/**
|
||||
* Picture type of the frame. |
||||
*/ |
||||
enum AVPictureType pict_type; |
||||
|
||||
#if FF_API_AVFRAME_LAVC |
||||
attribute_deprecated |
||||
uint8_t *base[AV_NUM_DATA_POINTERS]; |
||||
#endif |
||||
|
||||
/**
|
||||
* Sample aspect ratio for the video frame, 0/1 if unknown/unspecified. |
||||
*/ |
||||
AVRational sample_aspect_ratio; |
||||
|
||||
/**
|
||||
* Presentation timestamp in time_base units (time when frame should be shown to user). |
||||
*/ |
||||
int64_t pts; |
||||
|
||||
/**
|
||||
* PTS copied from the AVPacket that was decoded to produce this frame. |
||||
*/ |
||||
int64_t pkt_pts; |
||||
|
||||
/**
|
||||
* DTS copied from the AVPacket that triggered returning this frame. (if frame threading isnt used) |
||||
* This is also the Presentation time of this AVFrame calculated from |
||||
* only AVPacket.dts values without pts values. |
||||
*/ |
||||
int64_t pkt_dts; |
||||
|
||||
/**
|
||||
* picture number in bitstream order |
||||
*/ |
||||
int coded_picture_number; |
||||
/**
|
||||
* picture number in display order |
||||
*/ |
||||
int display_picture_number; |
||||
|
||||
/**
|
||||
* quality (between 1 (good) and FF_LAMBDA_MAX (bad)) |
||||
*/ |
||||
int quality; |
||||
|
||||
#if FF_API_AVFRAME_LAVC |
||||
attribute_deprecated |
||||
int reference; |
||||
|
||||
/**
|
||||
* QP table |
||||
*/ |
||||
attribute_deprecated |
||||
int8_t *qscale_table; |
||||
/**
|
||||
* QP store stride |
||||
*/ |
||||
attribute_deprecated |
||||
int qstride; |
||||
|
||||
attribute_deprecated |
||||
int qscale_type; |
||||
|
||||
/**
|
||||
* mbskip_table[mb]>=1 if MB didn't change |
||||
* stride= mb_width = (width+15)>>4 |
||||
*/ |
||||
attribute_deprecated |
||||
uint8_t *mbskip_table; |
||||
|
||||
/**
|
||||
* motion vector table |
||||
* @code |
||||
* example: |
||||
* int mv_sample_log2= 4 - motion_subsample_log2; |
||||
* int mb_width= (width+15)>>4; |
||||
* int mv_stride= (mb_width << mv_sample_log2) + 1; |
||||
* motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y]; |
||||
* @endcode |
||||
*/ |
||||
attribute_deprecated |
||||
int16_t (*motion_val[2])[2]; |
||||
|
||||
/**
|
||||
* macroblock type table |
||||
* mb_type_base + mb_width + 2 |
||||
*/ |
||||
attribute_deprecated |
||||
uint32_t *mb_type; |
||||
|
||||
/**
|
||||
* DCT coefficients |
||||
*/ |
||||
attribute_deprecated |
||||
short *dct_coeff; |
||||
|
||||
/**
|
||||
* motion reference frame index |
||||
* the order in which these are stored can depend on the codec. |
||||
*/ |
||||
attribute_deprecated |
||||
int8_t *ref_index[2]; |
||||
#endif |
||||
|
||||
/**
|
||||
* for some private data of the user |
||||
*/ |
||||
void *opaque; |
||||
|
||||
/**
|
||||
* error |
||||
*/ |
||||
uint64_t error[AV_NUM_DATA_POINTERS]; |
||||
|
||||
#if FF_API_AVFRAME_LAVC |
||||
attribute_deprecated |
||||
int type; |
||||
#endif |
||||
|
||||
/**
|
||||
* When decoding, this signals how much the picture must be delayed. |
||||
* extra_delay = repeat_pict / (2*fps) |
||||
*/ |
||||
int repeat_pict; |
||||
|
||||
/**
|
||||
* The content of the picture is interlaced. |
||||
*/ |
||||
int interlaced_frame; |
||||
|
||||
/**
|
||||
* If the content is interlaced, is top field displayed first. |
||||
*/ |
||||
int top_field_first; |
||||
|
||||
/**
|
||||
* Tell user application that palette has changed from previous frame. |
||||
*/ |
||||
int palette_has_changed; |
||||
|
||||
#if FF_API_AVFRAME_LAVC |
||||
attribute_deprecated |
||||
int buffer_hints; |
||||
|
||||
/**
|
||||
* Pan scan. |
||||
*/ |
||||
attribute_deprecated |
||||
struct AVPanScan *pan_scan; |
||||
#endif |
||||
|
||||
/**
|
||||
* reordered opaque 64bit (generally an integer or a double precision float |
||||
* PTS but can be anything). |
||||
* The user sets AVCodecContext.reordered_opaque to represent the input at |
||||
* that time, |
||||
* the decoder reorders values as needed and sets AVFrame.reordered_opaque |
||||
* to exactly one of the values provided by the user through AVCodecContext.reordered_opaque |
||||
* @deprecated in favor of pkt_pts |
||||
*/ |
||||
int64_t reordered_opaque; |
||||
|
||||
#if FF_API_AVFRAME_LAVC |
||||
/**
|
||||
* @deprecated this field is unused |
||||
*/ |
||||
attribute_deprecated void *hwaccel_picture_private; |
||||
|
||||
attribute_deprecated |
||||
struct AVCodecContext *owner; |
||||
attribute_deprecated |
||||
void *thread_opaque; |
||||
|
||||
/**
|
||||
* log2 of the size of the block which a single vector in motion_val represents: |
||||
* (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2) |
||||
*/ |
||||
attribute_deprecated |
||||
uint8_t motion_subsample_log2; |
||||
#endif |
||||
|
||||
/**
|
||||
* Sample rate of the audio data. |
||||
*/ |
||||
int sample_rate; |
||||
|
||||
/**
|
||||
* Channel layout of the audio data. |
||||
*/ |
||||
uint64_t channel_layout; |
||||
|
||||
/**
|
||||
* AVBuffer references backing the data for this frame. If all elements of |
||||
* this array are NULL, then this frame is not reference counted. |
||||
* |
||||
* There may be at most one AVBuffer per data plane, so for video this array |
||||
* always contains all the references. For planar audio with more than |
||||
* AV_NUM_DATA_POINTERS channels, there may be more buffers than can fit in |
||||
* this array. Then the extra AVBufferRef pointers are stored in the |
||||
* extended_buf array. |
||||
*/ |
||||
AVBufferRef *buf[AV_NUM_DATA_POINTERS]; |
||||
|
||||
/**
|
||||
* For planar audio which requires more than AV_NUM_DATA_POINTERS |
||||
* AVBufferRef pointers, this array will hold all the references which |
||||
* cannot fit into AVFrame.buf. |
||||
* |
||||
* Note that this is different from AVFrame.extended_data, which always |
||||
* contains all the pointers. This array only contains the extra pointers, |
||||
* which cannot fit into AVFrame.buf. |
||||
* |
||||
* This array is always allocated using av_malloc() by whoever constructs |
||||
* the frame. It is freed in av_frame_unref(). |
||||
*/ |
||||
AVBufferRef **extended_buf; |
||||
/**
|
||||
* Number of elements in extended_buf. |
||||
*/ |
||||
int nb_extended_buf; |
||||
|
||||
AVFrameSideData **side_data; |
||||
int nb_side_data; |
||||
|
||||
/**
|
||||
* frame timestamp estimated using various heuristics, in stream time base |
||||
* Code outside libavcodec should access this field using: |
||||
* av_frame_get_best_effort_timestamp(frame) |
||||
* - encoding: unused |
||||
* - decoding: set by libavcodec, read by user. |
||||
*/ |
||||
int64_t best_effort_timestamp; |
||||
|
||||
/**
|
||||
* reordered pos from the last AVPacket that has been input into the decoder |
||||
* Code outside libavcodec should access this field using: |
||||
* av_frame_get_pkt_pos(frame) |
||||
* - encoding: unused |
||||
* - decoding: Read by user. |
||||
*/ |
||||
int64_t pkt_pos; |
||||
|
||||
/**
|
||||
* duration of the corresponding packet, expressed in |
||||
* AVStream->time_base units, 0 if unknown. |
||||
* Code outside libavcodec should access this field using: |
||||
* av_frame_get_pkt_duration(frame) |
||||
* - encoding: unused |
||||
* - decoding: Read by user. |
||||
*/ |
||||
int64_t pkt_duration; |
||||
|
||||
/**
|
||||
* metadata. |
||||
* Code outside libavcodec should access this field using: |
||||
* av_frame_get_metadata(frame) |
||||
* - encoding: Set by user. |
||||
* - decoding: Set by libavcodec. |
||||
*/ |
||||
AVDictionary *metadata; |
||||
|
||||
/**
|
||||
* decode error flags of the frame, set to a combination of |
||||
* FF_DECODE_ERROR_xxx flags if the decoder produced a frame, but there |
||||
* were errors during the decoding. |
||||
* Code outside libavcodec should access this field using: |
||||
* av_frame_get_decode_error_flags(frame) |
||||
* - encoding: unused |
||||
* - decoding: set by libavcodec, read by user. |
||||
*/ |
||||
int decode_error_flags; |
||||
#define FF_DECODE_ERROR_INVALID_BITSTREAM 1 |
||||
#define FF_DECODE_ERROR_MISSING_REFERENCE 2 |
||||
|
||||
/**
|
||||
* number of audio channels, only used for audio. |
||||
* Code outside libavcodec should access this field using: |
||||
* av_frame_get_channels(frame) |
||||
* - encoding: unused |
||||
* - decoding: Read by user. |
||||
*/ |
||||
int channels; |
||||
|
||||
/**
|
||||
* size of the corresponding packet containing the compressed |
||||
* frame. It must be accessed using av_frame_get_pkt_size() and |
||||
* av_frame_set_pkt_size(). |
||||
* It is set to a negative value if unknown. |
||||
* - encoding: unused |
||||
* - decoding: set by libavcodec, read by user. |
||||
*/ |
||||
int pkt_size; |
||||
|
||||
/**
|
||||
* Not to be accessed directly from outside libavutil |
||||
*/ |
||||
AVBufferRef *qp_table_buf; |
||||
} AVFrame; |
||||
|
||||
/**
|
||||
* Accessors for some AVFrame fields. |
||||
* The position of these field in the structure is not part of the ABI, |
||||
* they should not be accessed directly outside libavcodec. |
||||
*/ |
||||
int64_t av_frame_get_best_effort_timestamp(const AVFrame *frame); |
||||
void av_frame_set_best_effort_timestamp(AVFrame *frame, int64_t val); |
||||
int64_t av_frame_get_pkt_duration (const AVFrame *frame); |
||||
void av_frame_set_pkt_duration (AVFrame *frame, int64_t val); |
||||
int64_t av_frame_get_pkt_pos (const AVFrame *frame); |
||||
void av_frame_set_pkt_pos (AVFrame *frame, int64_t val); |
||||
int64_t av_frame_get_channel_layout (const AVFrame *frame); |
||||
void av_frame_set_channel_layout (AVFrame *frame, int64_t val); |
||||
int av_frame_get_channels (const AVFrame *frame); |
||||
void av_frame_set_channels (AVFrame *frame, int val); |
||||
int av_frame_get_sample_rate (const AVFrame *frame); |
||||
void av_frame_set_sample_rate (AVFrame *frame, int val); |
||||
AVDictionary *av_frame_get_metadata (const AVFrame *frame); |
||||
void av_frame_set_metadata (AVFrame *frame, AVDictionary *val); |
||||
int av_frame_get_decode_error_flags (const AVFrame *frame); |
||||
void av_frame_set_decode_error_flags (AVFrame *frame, int val); |
||||
int av_frame_get_pkt_size(const AVFrame *frame); |
||||
void av_frame_set_pkt_size(AVFrame *frame, int val); |
||||
AVDictionary **avpriv_frame_get_metadatap(AVFrame *frame); |
||||
int8_t *av_frame_get_qp_table(AVFrame *f, int *stride, int *type); |
||||
int av_frame_set_qp_table(AVFrame *f, AVBufferRef *buf, int stride, int type); |
||||
|
||||
/**
|
||||
* Allocate an AVFrame and set its fields to default values. The resulting |
||||
* struct must be freed using av_frame_free(). |
||||
* |
||||
* @return An AVFrame filled with default values or NULL on failure. |
||||
* |
||||
* @note this only allocates the AVFrame itself, not the data buffers. Those |
||||
* must be allocated through other means, e.g. with av_frame_get_buffer() or |
||||
* manually. |
||||
*/ |
||||
AVFrame *av_frame_alloc(void); |
||||
|
||||
/**
|
||||
* Free the frame and any dynamically allocated objects in it, |
||||
* e.g. extended_data. If the frame is reference counted, it will be |
||||
* unreferenced first. |
||||
* |
||||
* @param frame frame to be freed. The pointer will be set to NULL. |
||||
*/ |
||||
void av_frame_free(AVFrame **frame); |
||||
|
||||
/**
|
||||
* Setup a new reference to the data described by an given frame. |
||||
* |
||||
* Copy frame properties from src to dst and create a new reference for each |
||||
* AVBufferRef from src. |
||||
* |
||||
* If src is not reference counted, new buffers are allocated and the data is |
||||
* copied. |
||||
* |
||||
* @return 0 on success, a negative AVERROR on error |
||||
*/ |
||||
int av_frame_ref(AVFrame *dst, AVFrame *src); |
||||
|
||||
/**
|
||||
* Create a new frame that references the same data as src. |
||||
* |
||||
* This is a shortcut for av_frame_alloc()+av_frame_ref(). |
||||
* |
||||
* @return newly created AVFrame on success, NULL on error. |
||||
*/ |
||||
AVFrame *av_frame_clone(AVFrame *src); |
||||
|
||||
/**
|
||||
* Unreference all the buffers referenced by frame and reset the frame fields. |
||||
*/ |
||||
void av_frame_unref(AVFrame *frame); |
||||
|
||||
/**
|
||||
* Move everythnig contained in src to dst and reset src. |
||||
*/ |
||||
void av_frame_move_ref(AVFrame *dst, AVFrame *src); |
||||
|
||||
/**
|
||||
* Allocate new buffer(s) for audio or video data. |
||||
* |
||||
* The following fields must be set on frame before calling this function: |
||||
* - format (pixel format for video, sample format for audio) |
||||
* - width and height for video |
||||
* - nb_samples and channel_layout for audio |
||||
* |
||||
* This function will fill AVFrame.data and AVFrame.buf arrays and, if |
||||
* necessary, allocate and fill AVFrame.extended_data and AVFrame.extended_buf. |
||||
* For planar formats, one buffer will be allocated for each plane. |
||||
* |
||||
* @param frame frame in which to store the new buffers. |
||||
* @param align required buffer size alignment |
||||
* |
||||
* @return 0 on success, a negative AVERROR on error. |
||||
*/ |
||||
int av_frame_get_buffer(AVFrame *frame, int align); |
||||
|
||||
/**
|
||||
* Check if the frame data is writable. |
||||
* |
||||
* @return A positive value if the frame data is writable (which is true if and |
||||
* only if each of the underlying buffers has only one reference, namely the one |
||||
* stored in this frame). Return 0 otherwise. |
||||
* |
||||
* If 1 is returned the answer is valid until av_buffer_ref() is called on any |
||||
* of the underlying AVBufferRefs (e.g. through av_frame_ref() or directly). |
||||
* |
||||
* @see av_frame_make_writable(), av_buffer_is_writable() |
||||
*/ |
||||
int av_frame_is_writable(AVFrame *frame); |
||||
|
||||
/**
|
||||
* Ensure that the frame data is writable, avoiding data copy if possible. |
||||
* |
||||
* Do nothing if the frame is writable, allocate new buffers and copy the data |
||||
* if it is not. |
||||
* |
||||
* @return 0 on success, a negative AVERROR on error. |
||||
* |
||||
* @see av_frame_is_writable(), av_buffer_is_writable(), |
||||
* av_buffer_make_writable() |
||||
*/ |
||||
int av_frame_make_writable(AVFrame *frame); |
||||
|
||||
/**
|
||||
* Copy only "metadata" fields from src to dst. |
||||
* |
||||
* Metadata for the purpose of this function are those fields that do not affect |
||||
* the data layout in the buffers. E.g. pts, sample rate (for audio) or sample |
||||
* aspect ratio (for video), but not width/height or channel layout. |
||||
* Side data is also copied. |
||||
*/ |
||||
int av_frame_copy_props(AVFrame *dst, const AVFrame *src); |
||||
|
||||
/**
|
||||
* Get the buffer reference a given data plane is stored in. |
||||
* |
||||
* @param plane index of the data plane of interest in frame->extended_data. |
||||
* |
||||
* @return the buffer reference that contains the plane or NULL if the input |
||||
* frame is not valid. |
||||
*/ |
||||
AVBufferRef *av_frame_get_plane_buffer(AVFrame *frame, int plane); |
||||
|
||||
/**
|
||||
* Add a new side data to a frame. |
||||
* |
||||
* @param frame a frame to which the side data should be added |
||||
* @param type type of the added side data |
||||
* @param size size of the side data |
||||
* |
||||
* @return newly added side data on success, NULL on error |
||||
*/ |
||||
AVFrameSideData *av_frame_new_side_data(AVFrame *frame, |
||||
enum AVFrameSideDataType type, |
||||
int size); |
||||
|
||||
/**
|
||||
* @return a pointer to the side data of a given type on success, NULL if there |
||||
* is no side data with such type in this frame. |
||||
*/ |
||||
AVFrameSideData *av_frame_get_side_data(AVFrame *frame, |
||||
enum AVFrameSideDataType type); |
||||
|
||||
#endif /* AVUTIL_FRAME_H */ |
@ -1,99 +0,0 @@ |
||||
/*
|
||||
* Copyright (C) 2012 Martin Storsjo |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_HMAC_H |
||||
#define AVUTIL_HMAC_H |
||||
|
||||
#include <stdint.h> |
||||
|
||||
/**
|
||||
* @defgroup lavu_hmac HMAC |
||||
* @ingroup lavu_crypto |
||||
* @{ |
||||
*/ |
||||
|
||||
enum AVHMACType { |
||||
AV_HMAC_MD5, |
||||
AV_HMAC_SHA1, |
||||
AV_HMAC_SHA224 = 10, |
||||
AV_HMAC_SHA256, |
||||
AV_HMAC_SHA384, |
||||
AV_HMAC_SHA512, |
||||
}; |
||||
|
||||
typedef struct AVHMAC AVHMAC; |
||||
|
||||
/**
|
||||
* Allocate an AVHMAC context. |
||||
* @param type The hash function used for the HMAC. |
||||
*/ |
||||
AVHMAC *av_hmac_alloc(enum AVHMACType type); |
||||
|
||||
/**
|
||||
* Free an AVHMAC context. |
||||
* @param ctx The context to free, may be NULL |
||||
*/ |
||||
void av_hmac_free(AVHMAC *ctx); |
||||
|
||||
/**
|
||||
* Initialize an AVHMAC context with an authentication key. |
||||
* @param ctx The HMAC context |
||||
* @param key The authentication key |
||||
* @param keylen The length of the key, in bytes |
||||
*/ |
||||
void av_hmac_init(AVHMAC *ctx, const uint8_t *key, unsigned int keylen); |
||||
|
||||
/**
|
||||
* Hash data with the HMAC. |
||||
* @param ctx The HMAC context |
||||
* @param data The data to hash |
||||
* @param len The length of the data, in bytes |
||||
*/ |
||||
void av_hmac_update(AVHMAC *ctx, const uint8_t *data, unsigned int len); |
||||
|
||||
/**
|
||||
* Finish hashing and output the HMAC digest. |
||||
* @param ctx The HMAC context |
||||
* @param out The output buffer to write the digest into |
||||
* @param outlen The length of the out buffer, in bytes |
||||
* @return The number of bytes written to out, or a negative error code. |
||||
*/ |
||||
int av_hmac_final(AVHMAC *ctx, uint8_t *out, unsigned int outlen); |
||||
|
||||
/**
|
||||
* Hash an array of data with a key. |
||||
* @param ctx The HMAC context |
||||
* @param data The data to hash |
||||
* @param len The length of the data, in bytes |
||||
* @param key The authentication key |
||||
* @param keylen The length of the key, in bytes |
||||
* @param out The output buffer to write the digest into |
||||
* @param outlen The length of the out buffer, in bytes |
||||
* @return The number of bytes written to out, or a negative error code. |
||||
*/ |
||||
int av_hmac_calc(AVHMAC *ctx, const uint8_t *data, unsigned int len, |
||||
const uint8_t *key, unsigned int keylen, |
||||
uint8_t *out, unsigned int outlen); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_HMAC_H */ |
@ -1,200 +0,0 @@ |
||||
/*
|
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_IMGUTILS_H |
||||
#define AVUTIL_IMGUTILS_H |
||||
|
||||
/**
|
||||
* @file |
||||
* misc image utilities |
||||
* |
||||
* @addtogroup lavu_picture |
||||
* @{ |
||||
*/ |
||||
|
||||
#include "avutil.h" |
||||
#include "pixdesc.h" |
||||
|
||||
/**
|
||||
* Compute the max pixel step for each plane of an image with a |
||||
* format described by pixdesc. |
||||
* |
||||
* The pixel step is the distance in bytes between the first byte of |
||||
* the group of bytes which describe a pixel component and the first |
||||
* byte of the successive group in the same plane for the same |
||||
* component. |
||||
* |
||||
* @param max_pixsteps an array which is filled with the max pixel step |
||||
* for each plane. Since a plane may contain different pixel |
||||
* components, the computed max_pixsteps[plane] is relative to the |
||||
* component in the plane with the max pixel step. |
||||
* @param max_pixstep_comps an array which is filled with the component |
||||
* for each plane which has the max pixel step. May be NULL. |
||||
*/ |
||||
void av_image_fill_max_pixsteps(int max_pixsteps[4], int max_pixstep_comps[4], |
||||
const AVPixFmtDescriptor *pixdesc); |
||||
|
||||
/**
|
||||
* Compute the size of an image line with format pix_fmt and width |
||||
* width for the plane plane. |
||||
* |
||||
* @return the computed size in bytes |
||||
*/ |
||||
int av_image_get_linesize(enum AVPixelFormat pix_fmt, int width, int plane); |
||||
|
||||
/**
|
||||
* Fill plane linesizes for an image with pixel format pix_fmt and |
||||
* width width. |
||||
* |
||||
* @param linesizes array to be filled with the linesize for each plane |
||||
* @return >= 0 in case of success, a negative error code otherwise |
||||
*/ |
||||
int av_image_fill_linesizes(int linesizes[4], enum AVPixelFormat pix_fmt, int width); |
||||
|
||||
/**
|
||||
* Fill plane data pointers for an image with pixel format pix_fmt and |
||||
* height height. |
||||
* |
||||
* @param data pointers array to be filled with the pointer for each image plane |
||||
* @param ptr the pointer to a buffer which will contain the image |
||||
* @param linesizes the array containing the linesize for each |
||||
* plane, should be filled by av_image_fill_linesizes() |
||||
* @return the size in bytes required for the image buffer, a negative |
||||
* error code in case of failure |
||||
*/ |
||||
int av_image_fill_pointers(uint8_t *data[4], enum AVPixelFormat pix_fmt, int height, |
||||
uint8_t *ptr, const int linesizes[4]); |
||||
|
||||
/**
|
||||
* Allocate an image with size w and h and pixel format pix_fmt, and |
||||
* fill pointers and linesizes accordingly. |
||||
* The allocated image buffer has to be freed by using |
||||
* av_freep(&pointers[0]). |
||||
* |
||||
* @param align the value to use for buffer size alignment |
||||
* @return the size in bytes required for the image buffer, a negative |
||||
* error code in case of failure |
||||
*/ |
||||
int av_image_alloc(uint8_t *pointers[4], int linesizes[4], |
||||
int w, int h, enum AVPixelFormat pix_fmt, int align); |
||||
|
||||
/**
|
||||
* Copy image plane from src to dst. |
||||
* That is, copy "height" number of lines of "bytewidth" bytes each. |
||||
* The first byte of each successive line is separated by *_linesize |
||||
* bytes. |
||||
* |
||||
* bytewidth must be contained by both absolute values of dst_linesize |
||||
* and src_linesize, otherwise the function behavior is undefined. |
||||
* |
||||
* @param dst_linesize linesize for the image plane in dst |
||||
* @param src_linesize linesize for the image plane in src |
||||
*/ |
||||
void av_image_copy_plane(uint8_t *dst, int dst_linesize, |
||||
const uint8_t *src, int src_linesize, |
||||
int bytewidth, int height); |
||||
|
||||
/**
|
||||
* Copy image in src_data to dst_data. |
||||
* |
||||
* @param dst_linesizes linesizes for the image in dst_data |
||||
* @param src_linesizes linesizes for the image in src_data |
||||
*/ |
||||
void av_image_copy(uint8_t *dst_data[4], int dst_linesizes[4], |
||||
const uint8_t *src_data[4], const int src_linesizes[4], |
||||
enum AVPixelFormat pix_fmt, int width, int height); |
||||
|
||||
/**
|
||||
* Setup the data pointers and linesizes based on the specified image |
||||
* parameters and the provided array. |
||||
* |
||||
* The fields of the given image are filled in by using the src |
||||
* address which points to the image data buffer. Depending on the |
||||
* specified pixel format, one or multiple image data pointers and |
||||
* line sizes will be set. If a planar format is specified, several |
||||
* pointers will be set pointing to the different picture planes and |
||||
* the line sizes of the different planes will be stored in the |
||||
* lines_sizes array. Call with src == NULL to get the required |
||||
* size for the src buffer. |
||||
* |
||||
* To allocate the buffer and fill in the dst_data and dst_linesize in |
||||
* one call, use av_image_alloc(). |
||||
* |
||||
* @param dst_data data pointers to be filled in |
||||
* @param dst_linesizes linesizes for the image in dst_data to be filled in |
||||
* @param src buffer which will contain or contains the actual image data, can be NULL |
||||
* @param pix_fmt the pixel format of the image |
||||
* @param width the width of the image in pixels |
||||
* @param height the height of the image in pixels |
||||
* @param align the value used in src for linesize alignment |
||||
* @return the size in bytes required for src, a negative error code |
||||
* in case of failure |
||||
*/ |
||||
int av_image_fill_arrays(uint8_t *dst_data[4], int dst_linesize[4], |
||||
const uint8_t *src, |
||||
enum AVPixelFormat pix_fmt, int width, int height, int align); |
||||
|
||||
/**
|
||||
* Return the size in bytes of the amount of data required to store an |
||||
* image with the given parameters. |
||||
* |
||||
* @param[in] align the assumed linesize alignment |
||||
*/ |
||||
int av_image_get_buffer_size(enum AVPixelFormat pix_fmt, int width, int height, int align); |
||||
|
||||
/**
|
||||
* Copy image data from an image into a buffer. |
||||
* |
||||
* av_image_get_buffer_size() can be used to compute the required size |
||||
* for the buffer to fill. |
||||
* |
||||
* @param dst a buffer into which picture data will be copied |
||||
* @param dst_size the size in bytes of dst |
||||
* @param src_data pointers containing the source image data |
||||
* @param src_linesizes linesizes for the image in src_data |
||||
* @param pix_fmt the pixel format of the source image |
||||
* @param width the width of the source image in pixels |
||||
* @param height the height of the source image in pixels |
||||
* @param align the assumed linesize alignment for dst |
||||
* @return the number of bytes written to dst, or a negative value |
||||
* (error code) on error |
||||
*/ |
||||
int av_image_copy_to_buffer(uint8_t *dst, int dst_size, |
||||
const uint8_t * const src_data[4], const int src_linesize[4], |
||||
enum AVPixelFormat pix_fmt, int width, int height, int align); |
||||
|
||||
/**
|
||||
* Check if the given dimension of an image is valid, meaning that all |
||||
* bytes of the image can be addressed with a signed int. |
||||
* |
||||
* @param w the width of the picture |
||||
* @param h the height of the picture |
||||
* @param log_offset the offset to sum to the log level for logging with log_ctx |
||||
* @param log_ctx the parent logging context, it may be NULL |
||||
* @return >= 0 if valid, a negative error code otherwise |
||||
*/ |
||||
int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx); |
||||
|
||||
int avpriv_set_systematic_pal2(uint32_t pal[256], enum AVPixelFormat pix_fmt); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
|
||||
#endif /* AVUTIL_IMGUTILS_H */ |
@ -1,77 +0,0 @@ |
||||
/*
|
||||
* Copyright (c) 2011 Mans Rullgard |
||||
* |
||||
* This file is part of Libav. |
||||
* |
||||
* Libav is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* Libav is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with Libav; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_INTFLOAT_H |
||||
#define AVUTIL_INTFLOAT_H |
||||
|
||||
#include <stdint.h> |
||||
#include "attributes.h" |
||||
|
||||
union av_intfloat32 { |
||||
uint32_t i; |
||||
float f; |
||||
}; |
||||
|
||||
union av_intfloat64 { |
||||
uint64_t i; |
||||
double f; |
||||
}; |
||||
|
||||
/**
|
||||
* Reinterpret a 32-bit integer as a float. |
||||
*/ |
||||
static av_always_inline float av_int2float(uint32_t i) |
||||
{ |
||||
union av_intfloat32 v; |
||||
v.i = i; |
||||
return v.f; |
||||
} |
||||
|
||||
/**
|
||||
* Reinterpret a float as a 32-bit integer. |
||||
*/ |
||||
static av_always_inline uint32_t av_float2int(float f) |
||||
{ |
||||
union av_intfloat32 v; |
||||
v.f = f; |
||||
return v.i; |
||||
} |
||||
|
||||
/**
|
||||
* Reinterpret a 64-bit integer as a double. |
||||
*/ |
||||
static av_always_inline double av_int2double(uint64_t i) |
||||
{ |
||||
union av_intfloat64 v; |
||||
v.i = i; |
||||
return v.f; |
||||
} |
||||
|
||||
/**
|
||||
* Reinterpret a double as a 64-bit integer. |
||||
*/ |
||||
static av_always_inline uint64_t av_double2int(double f) |
||||
{ |
||||
union av_intfloat64 v; |
||||
v.f = f; |
||||
return v.i; |
||||
} |
||||
|
||||
#endif /* AVUTIL_INTFLOAT_H */ |
@ -1,40 +0,0 @@ |
||||
/*
|
||||
* copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_INTFLOAT_READWRITE_H |
||||
#define AVUTIL_INTFLOAT_READWRITE_H |
||||
|
||||
#include <stdint.h> |
||||
#include "attributes.h" |
||||
|
||||
/* IEEE 80 bits extended float */ |
||||
typedef struct AVExtFloat { |
||||
uint8_t exponent[2]; |
||||
uint8_t mantissa[8]; |
||||
} AVExtFloat; |
||||
|
||||
attribute_deprecated double av_int2dbl(int64_t v) av_const; |
||||
attribute_deprecated float av_int2flt(int32_t v) av_const; |
||||
attribute_deprecated double av_ext2dbl(const AVExtFloat ext) av_const; |
||||
attribute_deprecated int64_t av_dbl2int(double d) av_const; |
||||
attribute_deprecated int32_t av_flt2int(float d) av_const; |
||||
attribute_deprecated AVExtFloat av_dbl2ext(double d) av_const; |
||||
|
||||
#endif /* AVUTIL_INTFLOAT_READWRITE_H */ |
@ -1,621 +0,0 @@ |
||||
/*
|
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_INTREADWRITE_H |
||||
#define AVUTIL_INTREADWRITE_H |
||||
|
||||
#include <stdint.h> |
||||
#include "libavutil/avconfig.h" |
||||
#include "attributes.h" |
||||
#include "bswap.h" |
||||
|
||||
typedef union { |
||||
uint64_t u64; |
||||
uint32_t u32[2]; |
||||
uint16_t u16[4]; |
||||
uint8_t u8 [8]; |
||||
double f64; |
||||
float f32[2]; |
||||
} av_alias av_alias64; |
||||
|
||||
typedef union { |
||||
uint32_t u32; |
||||
uint16_t u16[2]; |
||||
uint8_t u8 [4]; |
||||
float f32; |
||||
} av_alias av_alias32; |
||||
|
||||
typedef union { |
||||
uint16_t u16; |
||||
uint8_t u8 [2]; |
||||
} av_alias av_alias16; |
||||
|
||||
/*
|
||||
* Arch-specific headers can provide any combination of |
||||
* AV_[RW][BLN](16|24|32|48|64) and AV_(COPY|SWAP|ZERO)(64|128) macros. |
||||
* Preprocessor symbols must be defined, even if these are implemented |
||||
* as inline functions. |
||||
*/ |
||||
|
||||
#ifdef HAVE_AV_CONFIG_H |
||||
|
||||
#include "config.h" |
||||
|
||||
#if ARCH_ARM |
||||
# include "arm/intreadwrite.h" |
||||
#elif ARCH_AVR32 |
||||
# include "avr32/intreadwrite.h" |
||||
#elif ARCH_MIPS |
||||
# include "mips/intreadwrite.h" |
||||
#elif ARCH_PPC |
||||
# include "ppc/intreadwrite.h" |
||||
#elif ARCH_TOMI |
||||
# include "tomi/intreadwrite.h" |
||||
#elif ARCH_X86 |
||||
# include "x86/intreadwrite.h" |
||||
#endif |
||||
|
||||
#endif /* HAVE_AV_CONFIG_H */ |
||||
|
||||
/*
|
||||
* Map AV_RNXX <-> AV_R[BL]XX for all variants provided by per-arch headers. |
||||
*/ |
||||
|
||||
#if AV_HAVE_BIGENDIAN |
||||
|
||||
# if defined(AV_RN16) && !defined(AV_RB16) |
||||
# define AV_RB16(p) AV_RN16(p) |
||||
# elif !defined(AV_RN16) && defined(AV_RB16) |
||||
# define AV_RN16(p) AV_RB16(p) |
||||
# endif |
||||
|
||||
# if defined(AV_WN16) && !defined(AV_WB16) |
||||
# define AV_WB16(p, v) AV_WN16(p, v) |
||||
# elif !defined(AV_WN16) && defined(AV_WB16) |
||||
# define AV_WN16(p, v) AV_WB16(p, v) |
||||
# endif |
||||
|
||||
# if defined(AV_RN24) && !defined(AV_RB24) |
||||
# define AV_RB24(p) AV_RN24(p) |
||||
# elif !defined(AV_RN24) && defined(AV_RB24) |
||||
# define AV_RN24(p) AV_RB24(p) |
||||
# endif |
||||
|
||||
# if defined(AV_WN24) && !defined(AV_WB24) |
||||
# define AV_WB24(p, v) AV_WN24(p, v) |
||||
# elif !defined(AV_WN24) && defined(AV_WB24) |
||||
# define AV_WN24(p, v) AV_WB24(p, v) |
||||
# endif |
||||
|
||||
# if defined(AV_RN32) && !defined(AV_RB32) |
||||
# define AV_RB32(p) AV_RN32(p) |
||||
# elif !defined(AV_RN32) && defined(AV_RB32) |
||||
# define AV_RN32(p) AV_RB32(p) |
||||
# endif |
||||
|
||||
# if defined(AV_WN32) && !defined(AV_WB32) |
||||
# define AV_WB32(p, v) AV_WN32(p, v) |
||||
# elif !defined(AV_WN32) && defined(AV_WB32) |
||||
# define AV_WN32(p, v) AV_WB32(p, v) |
||||
# endif |
||||
|
||||
# if defined(AV_RN48) && !defined(AV_RB48) |
||||
# define AV_RB48(p) AV_RN48(p) |
||||
# elif !defined(AV_RN48) && defined(AV_RB48) |
||||
# define AV_RN48(p) AV_RB48(p) |
||||
# endif |
||||
|
||||
# if defined(AV_WN48) && !defined(AV_WB48) |
||||
# define AV_WB48(p, v) AV_WN48(p, v) |
||||
# elif !defined(AV_WN48) && defined(AV_WB48) |
||||
# define AV_WN48(p, v) AV_WB48(p, v) |
||||
# endif |
||||
|
||||
# if defined(AV_RN64) && !defined(AV_RB64) |
||||
# define AV_RB64(p) AV_RN64(p) |
||||
# elif !defined(AV_RN64) && defined(AV_RB64) |
||||
# define AV_RN64(p) AV_RB64(p) |
||||
# endif |
||||
|
||||
# if defined(AV_WN64) && !defined(AV_WB64) |
||||
# define AV_WB64(p, v) AV_WN64(p, v) |
||||
# elif !defined(AV_WN64) && defined(AV_WB64) |
||||
# define AV_WN64(p, v) AV_WB64(p, v) |
||||
# endif |
||||
|
||||
#else /* AV_HAVE_BIGENDIAN */ |
||||
|
||||
# if defined(AV_RN16) && !defined(AV_RL16) |
||||
# define AV_RL16(p) AV_RN16(p) |
||||
# elif !defined(AV_RN16) && defined(AV_RL16) |
||||
# define AV_RN16(p) AV_RL16(p) |
||||
# endif |
||||
|
||||
# if defined(AV_WN16) && !defined(AV_WL16) |
||||
# define AV_WL16(p, v) AV_WN16(p, v) |
||||
# elif !defined(AV_WN16) && defined(AV_WL16) |
||||
# define AV_WN16(p, v) AV_WL16(p, v) |
||||
# endif |
||||
|
||||
# if defined(AV_RN24) && !defined(AV_RL24) |
||||
# define AV_RL24(p) AV_RN24(p) |
||||
# elif !defined(AV_RN24) && defined(AV_RL24) |
||||
# define AV_RN24(p) AV_RL24(p) |
||||
# endif |
||||
|
||||
# if defined(AV_WN24) && !defined(AV_WL24) |
||||
# define AV_WL24(p, v) AV_WN24(p, v) |
||||
# elif !defined(AV_WN24) && defined(AV_WL24) |
||||
# define AV_WN24(p, v) AV_WL24(p, v) |
||||
# endif |
||||
|
||||
# if defined(AV_RN32) && !defined(AV_RL32) |
||||
# define AV_RL32(p) AV_RN32(p) |
||||
# elif !defined(AV_RN32) && defined(AV_RL32) |
||||
# define AV_RN32(p) AV_RL32(p) |
||||
# endif |
||||
|
||||
# if defined(AV_WN32) && !defined(AV_WL32) |
||||
# define AV_WL32(p, v) AV_WN32(p, v) |
||||
# elif !defined(AV_WN32) && defined(AV_WL32) |
||||
# define AV_WN32(p, v) AV_WL32(p, v) |
||||
# endif |
||||
|
||||
# if defined(AV_RN48) && !defined(AV_RL48) |
||||
# define AV_RL48(p) AV_RN48(p) |
||||
# elif !defined(AV_RN48) && defined(AV_RL48) |
||||
# define AV_RN48(p) AV_RL48(p) |
||||
# endif |
||||
|
||||
# if defined(AV_WN48) && !defined(AV_WL48) |
||||
# define AV_WL48(p, v) AV_WN48(p, v) |
||||
# elif !defined(AV_WN48) && defined(AV_WL48) |
||||
# define AV_WN48(p, v) AV_WL48(p, v) |
||||
# endif |
||||
|
||||
# if defined(AV_RN64) && !defined(AV_RL64) |
||||
# define AV_RL64(p) AV_RN64(p) |
||||
# elif !defined(AV_RN64) && defined(AV_RL64) |
||||
# define AV_RN64(p) AV_RL64(p) |
||||
# endif |
||||
|
||||
# if defined(AV_WN64) && !defined(AV_WL64) |
||||
# define AV_WL64(p, v) AV_WN64(p, v) |
||||
# elif !defined(AV_WN64) && defined(AV_WL64) |
||||
# define AV_WN64(p, v) AV_WL64(p, v) |
||||
# endif |
||||
|
||||
#endif /* !AV_HAVE_BIGENDIAN */ |
||||
|
||||
/*
|
||||
* Define AV_[RW]N helper macros to simplify definitions not provided |
||||
* by per-arch headers. |
||||
*/ |
||||
|
||||
#if defined(__GNUC__) && !defined(__TI_COMPILER_VERSION__) |
||||
|
||||
union unaligned_64 { uint64_t l; } __attribute__((packed)) av_alias; |
||||
union unaligned_32 { uint32_t l; } __attribute__((packed)) av_alias; |
||||
union unaligned_16 { uint16_t l; } __attribute__((packed)) av_alias; |
||||
|
||||
# define AV_RN(s, p) (((const union unaligned_##s *) (p))->l) |
||||
# define AV_WN(s, p, v) ((((union unaligned_##s *) (p))->l) = (v)) |
||||
|
||||
#elif defined(__DECC) |
||||
|
||||
# define AV_RN(s, p) (*((const __unaligned uint##s##_t*)(p))) |
||||
# define AV_WN(s, p, v) (*((__unaligned uint##s##_t*)(p)) = (v)) |
||||
|
||||
#elif AV_HAVE_FAST_UNALIGNED |
||||
|
||||
# define AV_RN(s, p) (((const av_alias##s*)(p))->u##s) |
||||
# define AV_WN(s, p, v) (((av_alias##s*)(p))->u##s = (v)) |
||||
|
||||
#else |
||||
|
||||
#ifndef AV_RB16 |
||||
# define AV_RB16(x) \ |
||||
((((const uint8_t*)(x))[0] << 8) | \
|
||||
((const uint8_t*)(x))[1]) |
||||
#endif |
||||
#ifndef AV_WB16 |
||||
# define AV_WB16(p, darg) do { \ |
||||
unsigned d = (darg); \
|
||||
((uint8_t*)(p))[1] = (d); \
|
||||
((uint8_t*)(p))[0] = (d)>>8; \
|
||||
} while(0) |
||||
#endif |
||||
|
||||
#ifndef AV_RL16 |
||||
# define AV_RL16(x) \ |
||||
((((const uint8_t*)(x))[1] << 8) | \
|
||||
((const uint8_t*)(x))[0]) |
||||
#endif |
||||
#ifndef AV_WL16 |
||||
# define AV_WL16(p, darg) do { \ |
||||
unsigned d = (darg); \
|
||||
((uint8_t*)(p))[0] = (d); \
|
||||
((uint8_t*)(p))[1] = (d)>>8; \
|
||||
} while(0) |
||||
#endif |
||||
|
||||
#ifndef AV_RB32 |
||||
# define AV_RB32(x) \ |
||||
(((uint32_t)((const uint8_t*)(x))[0] << 24) | \
|
||||
(((const uint8_t*)(x))[1] << 16) | \
|
||||
(((const uint8_t*)(x))[2] << 8) | \
|
||||
((const uint8_t*)(x))[3]) |
||||
#endif |
||||
#ifndef AV_WB32 |
||||
# define AV_WB32(p, darg) do { \ |
||||
unsigned d = (darg); \
|
||||
((uint8_t*)(p))[3] = (d); \
|
||||
((uint8_t*)(p))[2] = (d)>>8; \
|
||||
((uint8_t*)(p))[1] = (d)>>16; \
|
||||
((uint8_t*)(p))[0] = (d)>>24; \
|
||||
} while(0) |
||||
#endif |
||||
|
||||
#ifndef AV_RL32 |
||||
# define AV_RL32(x) \ |
||||
(((uint32_t)((const uint8_t*)(x))[3] << 24) | \
|
||||
(((const uint8_t*)(x))[2] << 16) | \
|
||||
(((const uint8_t*)(x))[1] << 8) | \
|
||||
((const uint8_t*)(x))[0]) |
||||
#endif |
||||
#ifndef AV_WL32 |
||||
# define AV_WL32(p, darg) do { \ |
||||
unsigned d = (darg); \
|
||||
((uint8_t*)(p))[0] = (d); \
|
||||
((uint8_t*)(p))[1] = (d)>>8; \
|
||||
((uint8_t*)(p))[2] = (d)>>16; \
|
||||
((uint8_t*)(p))[3] = (d)>>24; \
|
||||
} while(0) |
||||
#endif |
||||
|
||||
#ifndef AV_RB64 |
||||
# define AV_RB64(x) \ |
||||
(((uint64_t)((const uint8_t*)(x))[0] << 56) | \
|
||||
((uint64_t)((const uint8_t*)(x))[1] << 48) | \
|
||||
((uint64_t)((const uint8_t*)(x))[2] << 40) | \
|
||||
((uint64_t)((const uint8_t*)(x))[3] << 32) | \
|
||||
((uint64_t)((const uint8_t*)(x))[4] << 24) | \
|
||||
((uint64_t)((const uint8_t*)(x))[5] << 16) | \
|
||||
((uint64_t)((const uint8_t*)(x))[6] << 8) | \
|
||||
(uint64_t)((const uint8_t*)(x))[7]) |
||||
#endif |
||||
#ifndef AV_WB64 |
||||
# define AV_WB64(p, darg) do { \ |
||||
uint64_t d = (darg); \
|
||||
((uint8_t*)(p))[7] = (d); \
|
||||
((uint8_t*)(p))[6] = (d)>>8; \
|
||||
((uint8_t*)(p))[5] = (d)>>16; \
|
||||
((uint8_t*)(p))[4] = (d)>>24; \
|
||||
((uint8_t*)(p))[3] = (d)>>32; \
|
||||
((uint8_t*)(p))[2] = (d)>>40; \
|
||||
((uint8_t*)(p))[1] = (d)>>48; \
|
||||
((uint8_t*)(p))[0] = (d)>>56; \
|
||||
} while(0) |
||||
#endif |
||||
|
||||
#ifndef AV_RL64 |
||||
# define AV_RL64(x) \ |
||||
(((uint64_t)((const uint8_t*)(x))[7] << 56) | \
|
||||
((uint64_t)((const uint8_t*)(x))[6] << 48) | \
|
||||
((uint64_t)((const uint8_t*)(x))[5] << 40) | \
|
||||
((uint64_t)((const uint8_t*)(x))[4] << 32) | \
|
||||
((uint64_t)((const uint8_t*)(x))[3] << 24) | \
|
||||
((uint64_t)((const uint8_t*)(x))[2] << 16) | \
|
||||
((uint64_t)((const uint8_t*)(x))[1] << 8) | \
|
||||
(uint64_t)((const uint8_t*)(x))[0]) |
||||
#endif |
||||
#ifndef AV_WL64 |
||||
# define AV_WL64(p, darg) do { \ |
||||
uint64_t d = (darg); \
|
||||
((uint8_t*)(p))[0] = (d); \
|
||||
((uint8_t*)(p))[1] = (d)>>8; \
|
||||
((uint8_t*)(p))[2] = (d)>>16; \
|
||||
((uint8_t*)(p))[3] = (d)>>24; \
|
||||
((uint8_t*)(p))[4] = (d)>>32; \
|
||||
((uint8_t*)(p))[5] = (d)>>40; \
|
||||
((uint8_t*)(p))[6] = (d)>>48; \
|
||||
((uint8_t*)(p))[7] = (d)>>56; \
|
||||
} while(0) |
||||
#endif |
||||
|
||||
#if AV_HAVE_BIGENDIAN |
||||
# define AV_RN(s, p) AV_RB##s(p) |
||||
# define AV_WN(s, p, v) AV_WB##s(p, v) |
||||
#else |
||||
# define AV_RN(s, p) AV_RL##s(p) |
||||
# define AV_WN(s, p, v) AV_WL##s(p, v) |
||||
#endif |
||||
|
||||
#endif /* HAVE_FAST_UNALIGNED */ |
||||
|
||||
#ifndef AV_RN16 |
||||
# define AV_RN16(p) AV_RN(16, p) |
||||
#endif |
||||
|
||||
#ifndef AV_RN32 |
||||
# define AV_RN32(p) AV_RN(32, p) |
||||
#endif |
||||
|
||||
#ifndef AV_RN64 |
||||
# define AV_RN64(p) AV_RN(64, p) |
||||
#endif |
||||
|
||||
#ifndef AV_WN16 |
||||
# define AV_WN16(p, v) AV_WN(16, p, v) |
||||
#endif |
||||
|
||||
#ifndef AV_WN32 |
||||
# define AV_WN32(p, v) AV_WN(32, p, v) |
||||
#endif |
||||
|
||||
#ifndef AV_WN64 |
||||
# define AV_WN64(p, v) AV_WN(64, p, v) |
||||
#endif |
||||
|
||||
#if AV_HAVE_BIGENDIAN |
||||
# define AV_RB(s, p) AV_RN##s(p) |
||||
# define AV_WB(s, p, v) AV_WN##s(p, v) |
||||
# define AV_RL(s, p) av_bswap##s(AV_RN##s(p)) |
||||
# define AV_WL(s, p, v) AV_WN##s(p, av_bswap##s(v)) |
||||
#else |
||||
# define AV_RB(s, p) av_bswap##s(AV_RN##s(p)) |
||||
# define AV_WB(s, p, v) AV_WN##s(p, av_bswap##s(v)) |
||||
# define AV_RL(s, p) AV_RN##s(p) |
||||
# define AV_WL(s, p, v) AV_WN##s(p, v) |
||||
#endif |
||||
|
||||
#define AV_RB8(x) (((const uint8_t*)(x))[0]) |
||||
#define AV_WB8(p, d) do { ((uint8_t*)(p))[0] = (d); } while(0) |
||||
|
||||
#define AV_RL8(x) AV_RB8(x) |
||||
#define AV_WL8(p, d) AV_WB8(p, d) |
||||
|
||||
#ifndef AV_RB16 |
||||
# define AV_RB16(p) AV_RB(16, p) |
||||
#endif |
||||
#ifndef AV_WB16 |
||||
# define AV_WB16(p, v) AV_WB(16, p, v) |
||||
#endif |
||||
|
||||
#ifndef AV_RL16 |
||||
# define AV_RL16(p) AV_RL(16, p) |
||||
#endif |
||||
#ifndef AV_WL16 |
||||
# define AV_WL16(p, v) AV_WL(16, p, v) |
||||
#endif |
||||
|
||||
#ifndef AV_RB32 |
||||
# define AV_RB32(p) AV_RB(32, p) |
||||
#endif |
||||
#ifndef AV_WB32 |
||||
# define AV_WB32(p, v) AV_WB(32, p, v) |
||||
#endif |
||||
|
||||
#ifndef AV_RL32 |
||||
# define AV_RL32(p) AV_RL(32, p) |
||||
#endif |
||||
#ifndef AV_WL32 |
||||
# define AV_WL32(p, v) AV_WL(32, p, v) |
||||
#endif |
||||
|
||||
#ifndef AV_RB64 |
||||
# define AV_RB64(p) AV_RB(64, p) |
||||
#endif |
||||
#ifndef AV_WB64 |
||||
# define AV_WB64(p, v) AV_WB(64, p, v) |
||||
#endif |
||||
|
||||
#ifndef AV_RL64 |
||||
# define AV_RL64(p) AV_RL(64, p) |
||||
#endif |
||||
#ifndef AV_WL64 |
||||
# define AV_WL64(p, v) AV_WL(64, p, v) |
||||
#endif |
||||
|
||||
#ifndef AV_RB24 |
||||
# define AV_RB24(x) \ |
||||
((((const uint8_t*)(x))[0] << 16) | \
|
||||
(((const uint8_t*)(x))[1] << 8) | \
|
||||
((const uint8_t*)(x))[2]) |
||||
#endif |
||||
#ifndef AV_WB24 |
||||
# define AV_WB24(p, d) do { \ |
||||
((uint8_t*)(p))[2] = (d); \
|
||||
((uint8_t*)(p))[1] = (d)>>8; \
|
||||
((uint8_t*)(p))[0] = (d)>>16; \
|
||||
} while(0) |
||||
#endif |
||||
|
||||
#ifndef AV_RL24 |
||||
# define AV_RL24(x) \ |
||||
((((const uint8_t*)(x))[2] << 16) | \
|
||||
(((const uint8_t*)(x))[1] << 8) | \
|
||||
((const uint8_t*)(x))[0]) |
||||
#endif |
||||
#ifndef AV_WL24 |
||||
# define AV_WL24(p, d) do { \ |
||||
((uint8_t*)(p))[0] = (d); \
|
||||
((uint8_t*)(p))[1] = (d)>>8; \
|
||||
((uint8_t*)(p))[2] = (d)>>16; \
|
||||
} while(0) |
||||
#endif |
||||
|
||||
#ifndef AV_RB48 |
||||
# define AV_RB48(x) \ |
||||
(((uint64_t)((const uint8_t*)(x))[0] << 40) | \
|
||||
((uint64_t)((const uint8_t*)(x))[1] << 32) | \
|
||||
((uint64_t)((const uint8_t*)(x))[2] << 24) | \
|
||||
((uint64_t)((const uint8_t*)(x))[3] << 16) | \
|
||||
((uint64_t)((const uint8_t*)(x))[4] << 8) | \
|
||||
(uint64_t)((const uint8_t*)(x))[5]) |
||||
#endif |
||||
#ifndef AV_WB48 |
||||
# define AV_WB48(p, darg) do { \ |
||||
uint64_t d = (darg); \
|
||||
((uint8_t*)(p))[5] = (d); \
|
||||
((uint8_t*)(p))[4] = (d)>>8; \
|
||||
((uint8_t*)(p))[3] = (d)>>16; \
|
||||
((uint8_t*)(p))[2] = (d)>>24; \
|
||||
((uint8_t*)(p))[1] = (d)>>32; \
|
||||
((uint8_t*)(p))[0] = (d)>>40; \
|
||||
} while(0) |
||||
#endif |
||||
|
||||
#ifndef AV_RL48 |
||||
# define AV_RL48(x) \ |
||||
(((uint64_t)((const uint8_t*)(x))[5] << 40) | \
|
||||
((uint64_t)((const uint8_t*)(x))[4] << 32) | \
|
||||
((uint64_t)((const uint8_t*)(x))[3] << 24) | \
|
||||
((uint64_t)((const uint8_t*)(x))[2] << 16) | \
|
||||
((uint64_t)((const uint8_t*)(x))[1] << 8) | \
|
||||
(uint64_t)((const uint8_t*)(x))[0]) |
||||
#endif |
||||
#ifndef AV_WL48 |
||||
# define AV_WL48(p, darg) do { \ |
||||
uint64_t d = (darg); \
|
||||
((uint8_t*)(p))[0] = (d); \
|
||||
((uint8_t*)(p))[1] = (d)>>8; \
|
||||
((uint8_t*)(p))[2] = (d)>>16; \
|
||||
((uint8_t*)(p))[3] = (d)>>24; \
|
||||
((uint8_t*)(p))[4] = (d)>>32; \
|
||||
((uint8_t*)(p))[5] = (d)>>40; \
|
||||
} while(0) |
||||
#endif |
||||
|
||||
/*
|
||||
* The AV_[RW]NA macros access naturally aligned data |
||||
* in a type-safe way. |
||||
*/ |
||||
|
||||
#define AV_RNA(s, p) (((const av_alias##s*)(p))->u##s) |
||||
#define AV_WNA(s, p, v) (((av_alias##s*)(p))->u##s = (v)) |
||||
|
||||
#ifndef AV_RN16A |
||||
# define AV_RN16A(p) AV_RNA(16, p) |
||||
#endif |
||||
|
||||
#ifndef AV_RN32A |
||||
# define AV_RN32A(p) AV_RNA(32, p) |
||||
#endif |
||||
|
||||
#ifndef AV_RN64A |
||||
# define AV_RN64A(p) AV_RNA(64, p) |
||||
#endif |
||||
|
||||
#ifndef AV_WN16A |
||||
# define AV_WN16A(p, v) AV_WNA(16, p, v) |
||||
#endif |
||||
|
||||
#ifndef AV_WN32A |
||||
# define AV_WN32A(p, v) AV_WNA(32, p, v) |
||||
#endif |
||||
|
||||
#ifndef AV_WN64A |
||||
# define AV_WN64A(p, v) AV_WNA(64, p, v) |
||||
#endif |
||||
|
||||
/*
|
||||
* The AV_COPYxxU macros are suitable for copying data to/from unaligned |
||||
* memory locations. |
||||
*/ |
||||
|
||||
#define AV_COPYU(n, d, s) AV_WN##n(d, AV_RN##n(s)); |
||||
|
||||
#ifndef AV_COPY16U |
||||
# define AV_COPY16U(d, s) AV_COPYU(16, d, s) |
||||
#endif |
||||
|
||||
#ifndef AV_COPY32U |
||||
# define AV_COPY32U(d, s) AV_COPYU(32, d, s) |
||||
#endif |
||||
|
||||
#ifndef AV_COPY64U |
||||
# define AV_COPY64U(d, s) AV_COPYU(64, d, s) |
||||
#endif |
||||
|
||||
#ifndef AV_COPY128U |
||||
# define AV_COPY128U(d, s) \ |
||||
do { \
|
||||
AV_COPY64U(d, s); \
|
||||
AV_COPY64U((char *)(d) + 8, (const char *)(s) + 8); \
|
||||
} while(0) |
||||
#endif |
||||
|
||||
/* Parameters for AV_COPY*, AV_SWAP*, AV_ZERO* must be
|
||||
* naturally aligned. They may be implemented using MMX, |
||||
* so emms_c() must be called before using any float code |
||||
* afterwards. |
||||
*/ |
||||
|
||||
#define AV_COPY(n, d, s) \ |
||||
(((av_alias##n*)(d))->u##n = ((const av_alias##n*)(s))->u##n) |
||||
|
||||
#ifndef AV_COPY16 |
||||
# define AV_COPY16(d, s) AV_COPY(16, d, s) |
||||
#endif |
||||
|
||||
#ifndef AV_COPY32 |
||||
# define AV_COPY32(d, s) AV_COPY(32, d, s) |
||||
#endif |
||||
|
||||
#ifndef AV_COPY64 |
||||
# define AV_COPY64(d, s) AV_COPY(64, d, s) |
||||
#endif |
||||
|
||||
#ifndef AV_COPY128 |
||||
# define AV_COPY128(d, s) \ |
||||
do { \
|
||||
AV_COPY64(d, s); \
|
||||
AV_COPY64((char*)(d)+8, (char*)(s)+8); \
|
||||
} while(0) |
||||
#endif |
||||
|
||||
#define AV_SWAP(n, a, b) FFSWAP(av_alias##n, *(av_alias##n*)(a), *(av_alias##n*)(b)) |
||||
|
||||
#ifndef AV_SWAP64 |
||||
# define AV_SWAP64(a, b) AV_SWAP(64, a, b) |
||||
#endif |
||||
|
||||
#define AV_ZERO(n, d) (((av_alias##n*)(d))->u##n = 0) |
||||
|
||||
#ifndef AV_ZERO16 |
||||
# define AV_ZERO16(d) AV_ZERO(16, d) |
||||
#endif |
||||
|
||||
#ifndef AV_ZERO32 |
||||
# define AV_ZERO32(d) AV_ZERO(32, d) |
||||
#endif |
||||
|
||||
#ifndef AV_ZERO64 |
||||
# define AV_ZERO64(d) AV_ZERO(64, d) |
||||
#endif |
||||
|
||||
#ifndef AV_ZERO128 |
||||
# define AV_ZERO128(d) \ |
||||
do { \
|
||||
AV_ZERO64(d); \
|
||||
AV_ZERO64((char*)(d)+8); \
|
||||
} while(0) |
||||
#endif |
||||
|
||||
#endif /* AVUTIL_INTREADWRITE_H */ |
@ -1,62 +0,0 @@ |
||||
/*
|
||||
* Lagged Fibonacci PRNG |
||||
* Copyright (c) 2008 Michael Niedermayer |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_LFG_H |
||||
#define AVUTIL_LFG_H |
||||
|
||||
typedef struct AVLFG { |
||||
unsigned int state[64]; |
||||
int index; |
||||
} AVLFG; |
||||
|
||||
void av_lfg_init(AVLFG *c, unsigned int seed); |
||||
|
||||
/**
|
||||
* Get the next random unsigned 32-bit number using an ALFG. |
||||
* |
||||
* Please also consider a simple LCG like state= state*1664525+1013904223, |
||||
* it may be good enough and faster for your specific use case. |
||||
*/ |
||||
static inline unsigned int av_lfg_get(AVLFG *c){ |
||||
c->state[c->index & 63] = c->state[(c->index-24) & 63] + c->state[(c->index-55) & 63]; |
||||
return c->state[c->index++ & 63]; |
||||
} |
||||
|
||||
/**
|
||||
* Get the next random unsigned 32-bit number using a MLFG. |
||||
* |
||||
* Please also consider av_lfg_get() above, it is faster. |
||||
*/ |
||||
static inline unsigned int av_mlfg_get(AVLFG *c){ |
||||
unsigned int a= c->state[(c->index-55) & 63]; |
||||
unsigned int b= c->state[(c->index-24) & 63]; |
||||
return c->state[c->index++ & 63] = 2*a*b+a+b; |
||||
} |
||||
|
||||
/**
|
||||
* Get the next two numbers generated by a Box-Muller Gaussian |
||||
* generator using the random numbers issued by lfg. |
||||
* |
||||
* @param out array where the two generated numbers are placed |
||||
*/ |
||||
void av_bmg_get(AVLFG *lfg, double out[2]); |
||||
|
||||
#endif /* AVUTIL_LFG_H */ |
@ -1,222 +0,0 @@ |
||||
/*
|
||||
* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_LOG_H |
||||
#define AVUTIL_LOG_H |
||||
|
||||
#include <stdarg.h> |
||||
#include "avutil.h" |
||||
#include "attributes.h" |
||||
|
||||
typedef enum { |
||||
AV_CLASS_CATEGORY_NA = 0, |
||||
AV_CLASS_CATEGORY_INPUT, |
||||
AV_CLASS_CATEGORY_OUTPUT, |
||||
AV_CLASS_CATEGORY_MUXER, |
||||
AV_CLASS_CATEGORY_DEMUXER, |
||||
AV_CLASS_CATEGORY_ENCODER, |
||||
AV_CLASS_CATEGORY_DECODER, |
||||
AV_CLASS_CATEGORY_FILTER, |
||||
AV_CLASS_CATEGORY_BITSTREAM_FILTER, |
||||
AV_CLASS_CATEGORY_SWSCALER, |
||||
AV_CLASS_CATEGORY_SWRESAMPLER, |
||||
AV_CLASS_CATEGORY_NB, ///< not part of ABI/API
|
||||
}AVClassCategory; |
||||
|
||||
struct AVOptionRanges; |
||||
|
||||
/**
|
||||
* Describe the class of an AVClass context structure. That is an |
||||
* arbitrary struct of which the first field is a pointer to an |
||||
* AVClass struct (e.g. AVCodecContext, AVFormatContext etc.). |
||||
*/ |
||||
typedef struct AVClass { |
||||
/**
|
||||
* The name of the class; usually it is the same name as the |
||||
* context structure type to which the AVClass is associated. |
||||
*/ |
||||
const char* class_name; |
||||
|
||||
/**
|
||||
* A pointer to a function which returns the name of a context |
||||
* instance ctx associated with the class. |
||||
*/ |
||||
const char* (*item_name)(void* ctx); |
||||
|
||||
/**
|
||||
* a pointer to the first option specified in the class if any or NULL |
||||
* |
||||
* @see av_set_default_options() |
||||
*/ |
||||
const struct AVOption *option; |
||||
|
||||
/**
|
||||
* LIBAVUTIL_VERSION with which this structure was created. |
||||
* This is used to allow fields to be added without requiring major |
||||
* version bumps everywhere. |
||||
*/ |
||||
|
||||
int version; |
||||
|
||||
/**
|
||||
* Offset in the structure where log_level_offset is stored. |
||||
* 0 means there is no such variable |
||||
*/ |
||||
int log_level_offset_offset; |
||||
|
||||
/**
|
||||
* Offset in the structure where a pointer to the parent context for |
||||
* logging is stored. For example a decoder could pass its AVCodecContext |
||||
* to eval as such a parent context, which an av_log() implementation |
||||
* could then leverage to display the parent context. |
||||
* The offset can be NULL. |
||||
*/ |
||||
int parent_log_context_offset; |
||||
|
||||
/**
|
||||
* Return next AVOptions-enabled child or NULL |
||||
*/ |
||||
void* (*child_next)(void *obj, void *prev); |
||||
|
||||
/**
|
||||
* Return an AVClass corresponding to the next potential |
||||
* AVOptions-enabled child. |
||||
* |
||||
* The difference between child_next and this is that |
||||
* child_next iterates over _already existing_ objects, while |
||||
* child_class_next iterates over _all possible_ children. |
||||
*/ |
||||
const struct AVClass* (*child_class_next)(const struct AVClass *prev); |
||||
|
||||
/**
|
||||
* Category used for visualization (like color) |
||||
* This is only set if the category is equal for all objects using this class. |
||||
* available since version (51 << 16 | 56 << 8 | 100) |
||||
*/ |
||||
AVClassCategory category; |
||||
|
||||
/**
|
||||
* Callback to return the category. |
||||
* available since version (51 << 16 | 59 << 8 | 100) |
||||
*/ |
||||
AVClassCategory (*get_category)(void* ctx); |
||||
|
||||
/**
|
||||
* Callback to return the supported/allowed ranges. |
||||
* available since version (52.12) |
||||
*/ |
||||
int (*query_ranges)(struct AVOptionRanges **, void *obj, const char *key, int flags); |
||||
} AVClass; |
||||
|
||||
/* av_log API */ |
||||
|
||||
#define AV_LOG_QUIET -8 |
||||
|
||||
/**
|
||||
* Something went really wrong and we will crash now. |
||||
*/ |
||||
#define AV_LOG_PANIC 0 |
||||
|
||||
/**
|
||||
* Something went wrong and recovery is not possible. |
||||
* For example, no header was found for a format which depends |
||||
* on headers or an illegal combination of parameters is used. |
||||
*/ |
||||
#define AV_LOG_FATAL 8 |
||||
|
||||
/**
|
||||
* Something went wrong and cannot losslessly be recovered. |
||||
* However, not all future data is affected. |
||||
*/ |
||||
#define AV_LOG_ERROR 16 |
||||
|
||||
/**
|
||||
* Something somehow does not look correct. This may or may not |
||||
* lead to problems. An example would be the use of '-vstrict -2'. |
||||
*/ |
||||
#define AV_LOG_WARNING 24 |
||||
|
||||
#define AV_LOG_INFO 32 |
||||
#define AV_LOG_VERBOSE 40 |
||||
|
||||
/**
|
||||
* Stuff which is only useful for libav* developers. |
||||
*/ |
||||
#define AV_LOG_DEBUG 48 |
||||
|
||||
#define AV_LOG_MAX_OFFSET (AV_LOG_DEBUG - AV_LOG_QUIET) |
||||
|
||||
/**
|
||||
* Send the specified message to the log if the level is less than or equal |
||||
* to the current av_log_level. By default, all logging messages are sent to |
||||
* stderr. This behavior can be altered by setting a different av_vlog callback |
||||
* function. |
||||
* |
||||
* @param avcl A pointer to an arbitrary struct of which the first field is a |
||||
* pointer to an AVClass struct. |
||||
* @param level The importance level of the message, lower values signifying |
||||
* higher importance. |
||||
* @param fmt The format string (printf-compatible) that specifies how |
||||
* subsequent arguments are converted to output. |
||||
* @see av_vlog |
||||
*/ |
||||
void av_log(void *avcl, int level, const char *fmt, ...) av_printf_format(3, 4); |
||||
|
||||
void av_vlog(void *avcl, int level, const char *fmt, va_list); |
||||
int av_log_get_level(void); |
||||
void av_log_set_level(int); |
||||
void av_log_set_callback(void (*)(void*, int, const char*, va_list)); |
||||
void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl); |
||||
const char* av_default_item_name(void* ctx); |
||||
AVClassCategory av_default_get_category(void *ptr); |
||||
|
||||
/**
|
||||
* Format a line of log the same way as the default callback. |
||||
* @param line buffer to receive the formated line |
||||
* @param line_size size of the buffer |
||||
* @param print_prefix used to store whether the prefix must be printed; |
||||
* must point to a persistent integer initially set to 1 |
||||
*/ |
||||
void av_log_format_line(void *ptr, int level, const char *fmt, va_list vl, |
||||
char *line, int line_size, int *print_prefix); |
||||
|
||||
/**
|
||||
* av_dlog macros |
||||
* Useful to print debug messages that shouldn't get compiled in normally. |
||||
*/ |
||||
|
||||
#ifdef DEBUG |
||||
# define av_dlog(pctx, ...) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__) |
||||
#else |
||||
# define av_dlog(pctx, ...) do { if (0) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__); } while (0) |
||||
#endif |
||||
|
||||
/**
|
||||
* Skip repeated messages, this requires the user app to use av_log() instead of |
||||
* (f)printf as the 2 would otherwise interfere and lead to |
||||
* "Last message repeated x times" messages below (f)printf messages with some |
||||
* bad luck. |
||||
* Also to receive the last, "last repeated" line if any, the user app must |
||||
* call av_log(NULL, AV_LOG_QUIET, "%s", ""); at the end |
||||
*/ |
||||
#define AV_LOG_SKIP_REPEATED 1 |
||||
void av_log_set_flags(int arg); |
||||
|
||||
#endif /* AVUTIL_LOG_H */ |
@ -1,66 +0,0 @@ |
||||
/*
|
||||
* LZO 1x decompression |
||||
* copyright (c) 2006 Reimar Doeffinger |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_LZO_H |
||||
#define AVUTIL_LZO_H |
||||
|
||||
/**
|
||||
* @defgroup lavu_lzo LZO |
||||
* @ingroup lavu_crypto |
||||
* |
||||
* @{ |
||||
*/ |
||||
|
||||
#include <stdint.h> |
||||
|
||||
/** @name Error flags returned by av_lzo1x_decode
|
||||
* @{ */ |
||||
/// end of the input buffer reached before decoding finished
|
||||
#define AV_LZO_INPUT_DEPLETED 1 |
||||
/// decoded data did not fit into output buffer
|
||||
#define AV_LZO_OUTPUT_FULL 2 |
||||
/// a reference to previously decoded data was wrong
|
||||
#define AV_LZO_INVALID_BACKPTR 4 |
||||
/// a non-specific error in the compressed bitstream
|
||||
#define AV_LZO_ERROR 8 |
||||
/** @} */ |
||||
|
||||
#define AV_LZO_INPUT_PADDING 8 |
||||
#define AV_LZO_OUTPUT_PADDING 12 |
||||
|
||||
/**
|
||||
* @brief Decodes LZO 1x compressed data. |
||||
* @param out output buffer |
||||
* @param outlen size of output buffer, number of bytes left are returned here |
||||
* @param in input buffer |
||||
* @param inlen size of input buffer, number of bytes left are returned here |
||||
* @return 0 on success, otherwise a combination of the error flags above |
||||
* |
||||
* Make sure all buffers are appropriately padded, in must provide |
||||
* AV_LZO_INPUT_PADDING, out must provide AV_LZO_OUTPUT_PADDING additional bytes. |
||||
*/ |
||||
int av_lzo1x_decode(void *out, int *outlen, const void *in, int *inlen); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_LZO_H */ |
@ -1,147 +0,0 @@ |
||||
/*
|
||||
* copyright (c) 2005-2012 Michael Niedermayer <michaelni@gmx.at> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_MATHEMATICS_H |
||||
#define AVUTIL_MATHEMATICS_H |
||||
|
||||
#include <stdint.h> |
||||
#include <math.h> |
||||
#include "attributes.h" |
||||
#include "rational.h" |
||||
#include "intfloat.h" |
||||
|
||||
#ifndef M_E |
||||
#define M_E 2.7182818284590452354 /* e */ |
||||
#endif |
||||
#ifndef M_LN2 |
||||
#define M_LN2 0.69314718055994530942 /* log_e 2 */ |
||||
#endif |
||||
#ifndef M_LN10 |
||||
#define M_LN10 2.30258509299404568402 /* log_e 10 */ |
||||
#endif |
||||
#ifndef M_LOG2_10 |
||||
#define M_LOG2_10 3.32192809488736234787 /* log_2 10 */ |
||||
#endif |
||||
#ifndef M_PHI |
||||
#define M_PHI 1.61803398874989484820 /* phi / golden ratio */ |
||||
#endif |
||||
#ifndef M_PI |
||||
#define M_PI 3.14159265358979323846 /* pi */ |
||||
#endif |
||||
#ifndef M_SQRT1_2 |
||||
#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */ |
||||
#endif |
||||
#ifndef M_SQRT2 |
||||
#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */ |
||||
#endif |
||||
#ifndef NAN |
||||
#define NAN av_int2float(0x7fc00000) |
||||
#endif |
||||
#ifndef INFINITY |
||||
#define INFINITY av_int2float(0x7f800000) |
||||
#endif |
||||
|
||||
/**
|
||||
* @addtogroup lavu_math |
||||
* @{ |
||||
*/ |
||||
|
||||
|
||||
enum AVRounding { |
||||
AV_ROUND_ZERO = 0, ///< Round toward zero.
|
||||
AV_ROUND_INF = 1, ///< Round away from zero.
|
||||
AV_ROUND_DOWN = 2, ///< Round toward -infinity.
|
||||
AV_ROUND_UP = 3, ///< Round toward +infinity.
|
||||
AV_ROUND_NEAR_INF = 5, ///< Round to nearest and halfway cases away from zero.
|
||||
AV_ROUND_PASS_MINMAX = 8192, ///< Flag to pass INT64_MIN/MAX through instead of rescaling, this avoids special cases for AV_NOPTS_VALUE
|
||||
}; |
||||
|
||||
/**
|
||||
* Return the greatest common divisor of a and b. |
||||
* If both a and b are 0 or either or both are <0 then behavior is |
||||
* undefined. |
||||
*/ |
||||
int64_t av_const av_gcd(int64_t a, int64_t b); |
||||
|
||||
/**
|
||||
* Rescale a 64-bit integer with rounding to nearest. |
||||
* A simple a*b/c isn't possible as it can overflow. |
||||
*/ |
||||
int64_t av_rescale(int64_t a, int64_t b, int64_t c) av_const; |
||||
|
||||
/**
|
||||
* Rescale a 64-bit integer with specified rounding. |
||||
* A simple a*b/c isn't possible as it can overflow. |
||||
* |
||||
* @return rescaled value a, or if AV_ROUND_PASS_MINMAX is set and a is |
||||
* INT64_MIN or INT64_MAX then a is passed through unchanged. |
||||
*/ |
||||
int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding) av_const; |
||||
|
||||
/**
|
||||
* Rescale a 64-bit integer by 2 rational numbers. |
||||
*/ |
||||
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq) av_const; |
||||
|
||||
/**
|
||||
* Rescale a 64-bit integer by 2 rational numbers with specified rounding. |
||||
* |
||||
* @return rescaled value a, or if AV_ROUND_PASS_MINMAX is set and a is |
||||
* INT64_MIN or INT64_MAX then a is passed through unchanged. |
||||
*/ |
||||
int64_t av_rescale_q_rnd(int64_t a, AVRational bq, AVRational cq, |
||||
enum AVRounding) av_const; |
||||
|
||||
/**
|
||||
* Compare 2 timestamps each in its own timebases. |
||||
* The result of the function is undefined if one of the timestamps |
||||
* is outside the int64_t range when represented in the others timebase. |
||||
* @return -1 if ts_a is before ts_b, 1 if ts_a is after ts_b or 0 if they represent the same position |
||||
*/ |
||||
int av_compare_ts(int64_t ts_a, AVRational tb_a, int64_t ts_b, AVRational tb_b); |
||||
|
||||
/**
|
||||
* Compare 2 integers modulo mod. |
||||
* That is we compare integers a and b for which only the least |
||||
* significant log2(mod) bits are known. |
||||
* |
||||
* @param mod must be a power of 2 |
||||
* @return a negative value if a is smaller than b |
||||
* a positive value if a is greater than b |
||||
* 0 if a equals b |
||||
*/ |
||||
int64_t av_compare_mod(uint64_t a, uint64_t b, uint64_t mod); |
||||
|
||||
/**
|
||||
* Rescale a timestamp while preserving known durations. |
||||
* |
||||
* @param in_ts Input timestamp |
||||
* @param in_tb Input timesbase |
||||
* @param fs_tb Duration and *last timebase |
||||
* @param duration duration till the next call |
||||
* @param out_tb Output timesbase |
||||
*/ |
||||
int64_t av_rescale_delta(AVRational in_tb, int64_t in_ts, AVRational fs_tb, int duration, int64_t *last, AVRational out_tb); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_MATHEMATICS_H */ |
@ -1,81 +0,0 @@ |
||||
/*
|
||||
* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_MD5_H |
||||
#define AVUTIL_MD5_H |
||||
|
||||
#include <stdint.h> |
||||
|
||||
#include "attributes.h" |
||||
#include "version.h" |
||||
|
||||
/**
|
||||
* @defgroup lavu_md5 MD5 |
||||
* @ingroup lavu_crypto |
||||
* @{ |
||||
*/ |
||||
|
||||
extern const int av_md5_size; |
||||
|
||||
struct AVMD5; |
||||
|
||||
/**
|
||||
* Allocate an AVMD5 context. |
||||
*/ |
||||
struct AVMD5 *av_md5_alloc(void); |
||||
|
||||
/**
|
||||
* Initialize MD5 hashing. |
||||
* |
||||
* @param ctx pointer to the function context (of size av_md5_size) |
||||
*/ |
||||
void av_md5_init(struct AVMD5 *ctx); |
||||
|
||||
/**
|
||||
* Update hash value. |
||||
* |
||||
* @param ctx hash function context |
||||
* @param src input data to update hash with |
||||
* @param len input data length |
||||
*/ |
||||
void av_md5_update(struct AVMD5 *ctx, const uint8_t *src, int len); |
||||
|
||||
/**
|
||||
* Finish hashing and output digest value. |
||||
* |
||||
* @param ctx hash function context |
||||
* @param dst buffer where output digest value is stored |
||||
*/ |
||||
void av_md5_final(struct AVMD5 *ctx, uint8_t *dst); |
||||
|
||||
/**
|
||||
* Hash an array of data. |
||||
* |
||||
* @param dst The output buffer to write the digest into |
||||
* @param src The data to hash |
||||
* @param len The length of the data, in bytes |
||||
*/ |
||||
void av_md5_sum(uint8_t *dst, const uint8_t *src, const int len); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_MD5_H */ |
@ -1,307 +0,0 @@ |
||||
/*
|
||||
* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
/**
|
||||
* @file |
||||
* memory handling functions |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_MEM_H |
||||
#define AVUTIL_MEM_H |
||||
|
||||
#include <limits.h> |
||||
#include <stdint.h> |
||||
|
||||
#include "attributes.h" |
||||
#include "error.h" |
||||
#include "avutil.h" |
||||
|
||||
/**
|
||||
* @addtogroup lavu_mem |
||||
* @{ |
||||
*/ |
||||
|
||||
|
||||
#if defined(__INTEL_COMPILER) && __INTEL_COMPILER < 1110 || defined(__SUNPRO_C) |
||||
#define DECLARE_ALIGNED(n,t,v) t __attribute__ ((aligned (n))) v |
||||
#define DECLARE_ASM_CONST(n,t,v) const t __attribute__ ((aligned (n))) v |
||||
#elif defined(__TI_COMPILER_VERSION__) |
||||
#define DECLARE_ALIGNED(n,t,v) \ |
||||
AV_PRAGMA(DATA_ALIGN(v,n)) \
|
||||
t __attribute__((aligned(n))) v |
||||
#define DECLARE_ASM_CONST(n,t,v) \ |
||||
AV_PRAGMA(DATA_ALIGN(v,n)) \
|
||||
static const t __attribute__((aligned(n))) v |
||||
#elif defined(__GNUC__) |
||||
#define DECLARE_ALIGNED(n,t,v) t __attribute__ ((aligned (n))) v |
||||
#define DECLARE_ASM_CONST(n,t,v) static const t av_used __attribute__ ((aligned (n))) v |
||||
#elif defined(_MSC_VER) |
||||
#define DECLARE_ALIGNED(n,t,v) __declspec(align(n)) t v |
||||
#define DECLARE_ASM_CONST(n,t,v) __declspec(align(n)) static const t v |
||||
#else |
||||
#define DECLARE_ALIGNED(n,t,v) t v |
||||
#define DECLARE_ASM_CONST(n,t,v) static const t v |
||||
#endif |
||||
|
||||
#if AV_GCC_VERSION_AT_LEAST(3,1) |
||||
#define av_malloc_attrib __attribute__((__malloc__)) |
||||
#else |
||||
#define av_malloc_attrib |
||||
#endif |
||||
|
||||
#if AV_GCC_VERSION_AT_LEAST(4,3) |
||||
#define av_alloc_size(...) __attribute__((alloc_size(__VA_ARGS__))) |
||||
#else |
||||
#define av_alloc_size(...) |
||||
#endif |
||||
|
||||
/**
|
||||
* Allocate a block of size bytes with alignment suitable for all |
||||
* memory accesses (including vectors if available on the CPU). |
||||
* @param size Size in bytes for the memory block to be allocated. |
||||
* @return Pointer to the allocated block, NULL if the block cannot |
||||
* be allocated. |
||||
* @see av_mallocz() |
||||
*/ |
||||
void *av_malloc(size_t size) av_malloc_attrib av_alloc_size(1); |
||||
|
||||
/**
|
||||
* Helper function to allocate a block of size * nmemb bytes with |
||||
* using av_malloc() |
||||
* @param nmemb Number of elements |
||||
* @param size Size of the single element |
||||
* @return Pointer to the allocated block, NULL if the block cannot |
||||
* be allocated. |
||||
* @see av_malloc() |
||||
*/ |
||||
av_alloc_size(1, 2) static inline void *av_malloc_array(size_t nmemb, size_t size) |
||||
{ |
||||
if (size <= 0 || nmemb >= INT_MAX / size) |
||||
return NULL; |
||||
return av_malloc(nmemb * size); |
||||
} |
||||
|
||||
/**
|
||||
* Allocate or reallocate a block of memory. |
||||
* If ptr is NULL and size > 0, allocate a new block. If |
||||
* size is zero, free the memory block pointed to by ptr. |
||||
* @param ptr Pointer to a memory block already allocated with |
||||
* av_malloc(z)() or av_realloc() or NULL. |
||||
* @param size Size in bytes for the memory block to be allocated or |
||||
* reallocated. |
||||
* @return Pointer to a newly reallocated block or NULL if the block |
||||
* cannot be reallocated or the function is used to free the memory block. |
||||
* @see av_fast_realloc() |
||||
*/ |
||||
void *av_realloc(void *ptr, size_t size) av_alloc_size(2); |
||||
|
||||
/**
|
||||
* Allocate or reallocate a block of memory. |
||||
* This function does the same thing as av_realloc, except: |
||||
* - It takes two arguments and checks the result of the multiplication for |
||||
* integer overflow. |
||||
* - It frees the input block in case of failure, thus avoiding the memory |
||||
* leak with the classic "buf = realloc(buf); if (!buf) return -1;". |
||||
*/ |
||||
void *av_realloc_f(void *ptr, size_t nelem, size_t elsize); |
||||
|
||||
/**
|
||||
* Allocate or reallocate an array. |
||||
* If ptr is NULL and nmemb > 0, allocate a new block. If |
||||
* nmemb is zero, free the memory block pointed to by ptr. |
||||
* @param ptr Pointer to a memory block already allocated with |
||||
* av_malloc(z)() or av_realloc() or NULL. |
||||
* @param nmemb Number of elements |
||||
* @param size Size of the single element |
||||
* @return Pointer to a newly reallocated block or NULL if the block |
||||
* cannot be reallocated or the function is used to free the memory block. |
||||
*/ |
||||
av_alloc_size(2, 3) void *av_realloc_array(void *ptr, size_t nmemb, size_t size); |
||||
|
||||
/**
|
||||
* Allocate or reallocate an array. |
||||
* If *ptr is NULL and nmemb > 0, allocate a new block. If |
||||
* nmemb is zero, free the memory block pointed to by ptr. |
||||
* @param ptr Pointer to a pointer to a memory block already allocated |
||||
* with av_malloc(z)() or av_realloc(), or pointer to a pointer to NULL. |
||||
* The pointer is updated on success, or freed on failure. |
||||
* @param nmemb Number of elements |
||||
* @param size Size of the single element |
||||
* @return Zero on success, an AVERROR error code on failure. |
||||
*/ |
||||
av_alloc_size(2, 3) int av_reallocp_array(void *ptr, size_t nmemb, size_t size); |
||||
|
||||
/**
|
||||
* Free a memory block which has been allocated with av_malloc(z)() or |
||||
* av_realloc(). |
||||
* @param ptr Pointer to the memory block which should be freed. |
||||
* @note ptr = NULL is explicitly allowed. |
||||
* @note It is recommended that you use av_freep() instead. |
||||
* @see av_freep() |
||||
*/ |
||||
void av_free(void *ptr); |
||||
|
||||
/**
|
||||
* Allocate a block of size bytes with alignment suitable for all |
||||
* memory accesses (including vectors if available on the CPU) and |
||||
* zero all the bytes of the block. |
||||
* @param size Size in bytes for the memory block to be allocated. |
||||
* @return Pointer to the allocated block, NULL if it cannot be allocated. |
||||
* @see av_malloc() |
||||
*/ |
||||
void *av_mallocz(size_t size) av_malloc_attrib av_alloc_size(1); |
||||
|
||||
/**
|
||||
* Allocate a block of nmemb * size bytes with alignment suitable for all |
||||
* memory accesses (including vectors if available on the CPU) and |
||||
* zero all the bytes of the block. |
||||
* The allocation will fail if nmemb * size is greater than or equal |
||||
* to INT_MAX. |
||||
* @param nmemb |
||||
* @param size |
||||
* @return Pointer to the allocated block, NULL if it cannot be allocated. |
||||
*/ |
||||
void *av_calloc(size_t nmemb, size_t size) av_malloc_attrib; |
||||
|
||||
/**
|
||||
* Helper function to allocate a block of size * nmemb bytes with |
||||
* using av_mallocz() |
||||
* @param nmemb Number of elements |
||||
* @param size Size of the single element |
||||
* @return Pointer to the allocated block, NULL if the block cannot |
||||
* be allocated. |
||||
* @see av_mallocz() |
||||
* @see av_malloc_array() |
||||
*/ |
||||
av_alloc_size(1, 2) static inline void *av_mallocz_array(size_t nmemb, size_t size) |
||||
{ |
||||
if (size <= 0 || nmemb >= INT_MAX / size) |
||||
return NULL; |
||||
return av_mallocz(nmemb * size); |
||||
} |
||||
|
||||
/**
|
||||
* Duplicate the string s. |
||||
* @param s string to be duplicated |
||||
* @return Pointer to a newly allocated string containing a |
||||
* copy of s or NULL if the string cannot be allocated. |
||||
*/ |
||||
char *av_strdup(const char *s) av_malloc_attrib; |
||||
|
||||
/**
|
||||
* Duplicate the buffer p. |
||||
* @param p buffer to be duplicated |
||||
* @return Pointer to a newly allocated buffer containing a |
||||
* copy of p or NULL if the buffer cannot be allocated. |
||||
*/ |
||||
void *av_memdup(const void *p, size_t size); |
||||
|
||||
/**
|
||||
* Free a memory block which has been allocated with av_malloc(z)() or |
||||
* av_realloc() and set the pointer pointing to it to NULL. |
||||
* @param ptr Pointer to the pointer to the memory block which should |
||||
* be freed. |
||||
* @see av_free() |
||||
*/ |
||||
void av_freep(void *ptr); |
||||
|
||||
/**
|
||||
* Add an element to a dynamic array. |
||||
* |
||||
* The array to grow is supposed to be an array of pointers to |
||||
* structures, and the element to add must be a pointer to an already |
||||
* allocated structure. |
||||
* |
||||
* The array is reallocated when its size reaches powers of 2. |
||||
* Therefore, the amortized cost of adding an element is constant. |
||||
* |
||||
* In case of success, the pointer to the array is updated in order to |
||||
* point to the new grown array, and the number pointed to by nb_ptr |
||||
* is incremented. |
||||
* In case of failure, the array is freed, *tab_ptr is set to NULL and |
||||
* *nb_ptr is set to 0. |
||||
* |
||||
* @param tab_ptr pointer to the array to grow |
||||
* @param nb_ptr pointer to the number of elements in the array |
||||
* @param elem element to add |
||||
* @see av_dynarray2_add() |
||||
*/ |
||||
void av_dynarray_add(void *tab_ptr, int *nb_ptr, void *elem); |
||||
|
||||
/**
|
||||
* Add an element of size elem_size to a dynamic array. |
||||
* |
||||
* The array is reallocated when its number of elements reaches powers of 2. |
||||
* Therefore, the amortized cost of adding an element is constant. |
||||
* |
||||
* In case of success, the pointer to the array is updated in order to |
||||
* point to the new grown array, and the number pointed to by nb_ptr |
||||
* is incremented. |
||||
* In case of failure, the array is freed, *tab_ptr is set to NULL and |
||||
* *nb_ptr is set to 0. |
||||
* |
||||
* @param tab_ptr pointer to the array to grow |
||||
* @param nb_ptr pointer to the number of elements in the array |
||||
* @param elem_size size in bytes of the elements in the array |
||||
* @param elem_data pointer to the data of the element to add. If NULL, the space of |
||||
* the new added element is not filled. |
||||
* @return pointer to the data of the element to copy in the new allocated space. |
||||
* If NULL, the new allocated space is left uninitialized." |
||||
* @see av_dynarray_add() |
||||
*/ |
||||
void *av_dynarray2_add(void **tab_ptr, int *nb_ptr, size_t elem_size, |
||||
const uint8_t *elem_data); |
||||
|
||||
/**
|
||||
* Multiply two size_t values checking for overflow. |
||||
* @return 0 if success, AVERROR(EINVAL) if overflow. |
||||
*/ |
||||
static inline int av_size_mult(size_t a, size_t b, size_t *r) |
||||
{ |
||||
size_t t = a * b; |
||||
/* Hack inspired from glibc: only try the division if nelem and elsize
|
||||
* are both greater than sqrt(SIZE_MAX). */ |
||||
if ((a | b) >= ((size_t)1 << (sizeof(size_t) * 4)) && a && t / a != b) |
||||
return AVERROR(EINVAL); |
||||
*r = t; |
||||
return 0; |
||||
} |
||||
|
||||
/**
|
||||
* Set the maximum size that may me allocated in one block. |
||||
*/ |
||||
void av_max_alloc(size_t max); |
||||
|
||||
/**
|
||||
* @brief deliberately overlapping memcpy implementation |
||||
* @param dst destination buffer |
||||
* @param back how many bytes back we start (the initial size of the overlapping window), must be > 0 |
||||
* @param cnt number of bytes to copy, must be >= 0 |
||||
* |
||||
* cnt > back is valid, this will copy the bytes we just copied, |
||||
* thus creating a repeating pattern with a period length of back. |
||||
*/ |
||||
void av_memcpy_backptr(uint8_t *dst, int back, int cnt); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_MEM_H */ |
@ -1,32 +0,0 @@ |
||||
/*
|
||||
* Copyright (C) 2013 Reimar Döffinger <Reimar.Doeffinger@gmx.de> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_MURMUR3_H |
||||
#define AVUTIL_MURMUR3_H |
||||
|
||||
#include <stdint.h> |
||||
|
||||
struct AVMurMur3 *av_murmur3_alloc(void); |
||||
void av_murmur3_init_seeded(struct AVMurMur3 *c, uint64_t seed); |
||||
void av_murmur3_init(struct AVMurMur3 *c); |
||||
void av_murmur3_update(struct AVMurMur3 *c, const uint8_t *src, int len); |
||||
void av_murmur3_final(struct AVMurMur3 *c, uint8_t dst[16]); |
||||
|
||||
#endif /* AVUTIL_MURMUR3_H */ |
@ -1,171 +0,0 @@ |
||||
/*
|
||||
* copyright (c) 2006-2012 Michael Niedermayer <michaelni@gmx.at> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_OLD_PIX_FMTS_H |
||||
#define AVUTIL_OLD_PIX_FMTS_H |
||||
|
||||
/*
|
||||
* This header exists to prevent new pixel formats from being accidentally added |
||||
* to the deprecated list. |
||||
* Do not include it directly. It will be removed on next major bump |
||||
* |
||||
* Do not add new items to this list. Use the AVPixelFormat enum instead. |
||||
*/ |
||||
PIX_FMT_NONE = AV_PIX_FMT_NONE, |
||||
PIX_FMT_YUV420P, ///< planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
|
||||
PIX_FMT_YUYV422, ///< packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
|
||||
PIX_FMT_RGB24, ///< packed RGB 8:8:8, 24bpp, RGBRGB...
|
||||
PIX_FMT_BGR24, ///< packed RGB 8:8:8, 24bpp, BGRBGR...
|
||||
PIX_FMT_YUV422P, ///< planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
|
||||
PIX_FMT_YUV444P, ///< planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
|
||||
PIX_FMT_YUV410P, ///< planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
|
||||
PIX_FMT_YUV411P, ///< planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
|
||||
PIX_FMT_GRAY8, ///< Y , 8bpp
|
||||
PIX_FMT_MONOWHITE, ///< Y , 1bpp, 0 is white, 1 is black, in each byte pixels are ordered from the msb to the lsb
|
||||
PIX_FMT_MONOBLACK, ///< Y , 1bpp, 0 is black, 1 is white, in each byte pixels are ordered from the msb to the lsb
|
||||
PIX_FMT_PAL8, ///< 8 bit with PIX_FMT_RGB32 palette
|
||||
PIX_FMT_YUVJ420P, ///< planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV420P and setting color_range
|
||||
PIX_FMT_YUVJ422P, ///< planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV422P and setting color_range
|
||||
PIX_FMT_YUVJ444P, ///< planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV444P and setting color_range
|
||||
PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing
|
||||
PIX_FMT_XVMC_MPEG2_IDCT, |
||||
PIX_FMT_UYVY422, ///< packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
|
||||
PIX_FMT_UYYVYY411, ///< packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3
|
||||
PIX_FMT_BGR8, ///< packed RGB 3:3:2, 8bpp, (msb)2B 3G 3R(lsb)
|
||||
PIX_FMT_BGR4, ///< packed RGB 1:2:1 bitstream, 4bpp, (msb)1B 2G 1R(lsb), a byte contains two pixels, the first pixel in the byte is the one composed by the 4 msb bits
|
||||
PIX_FMT_BGR4_BYTE, ///< packed RGB 1:2:1, 8bpp, (msb)1B 2G 1R(lsb)
|
||||
PIX_FMT_RGB8, ///< packed RGB 3:3:2, 8bpp, (msb)2R 3G 3B(lsb)
|
||||
PIX_FMT_RGB4, ///< packed RGB 1:2:1 bitstream, 4bpp, (msb)1R 2G 1B(lsb), a byte contains two pixels, the first pixel in the byte is the one composed by the 4 msb bits
|
||||
PIX_FMT_RGB4_BYTE, ///< packed RGB 1:2:1, 8bpp, (msb)1R 2G 1B(lsb)
|
||||
PIX_FMT_NV12, ///< planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (first byte U and the following byte V)
|
||||
PIX_FMT_NV21, ///< as above, but U and V bytes are swapped
|
||||
|
||||
PIX_FMT_ARGB, ///< packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
|
||||
PIX_FMT_RGBA, ///< packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
|
||||
PIX_FMT_ABGR, ///< packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
|
||||
PIX_FMT_BGRA, ///< packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
|
||||
|
||||
PIX_FMT_GRAY16BE, ///< Y , 16bpp, big-endian
|
||||
PIX_FMT_GRAY16LE, ///< Y , 16bpp, little-endian
|
||||
PIX_FMT_YUV440P, ///< planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
|
||||
PIX_FMT_YUVJ440P, ///< planar YUV 4:4:0 full scale (JPEG), deprecated in favor of PIX_FMT_YUV440P and setting color_range
|
||||
PIX_FMT_YUVA420P, ///< planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
|
||||
PIX_FMT_VDPAU_H264,///< H.264 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
|
||||
PIX_FMT_VDPAU_MPEG1,///< MPEG-1 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
|
||||
PIX_FMT_VDPAU_MPEG2,///< MPEG-2 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
|
||||
PIX_FMT_VDPAU_WMV3,///< WMV3 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
|
||||
PIX_FMT_VDPAU_VC1, ///< VC-1 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
|
||||
PIX_FMT_RGB48BE, ///< packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as big-endian
|
||||
PIX_FMT_RGB48LE, ///< packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as little-endian
|
||||
|
||||
PIX_FMT_RGB565BE, ///< packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), big-endian
|
||||
PIX_FMT_RGB565LE, ///< packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), little-endian
|
||||
PIX_FMT_RGB555BE, ///< packed RGB 5:5:5, 16bpp, (msb)1A 5R 5G 5B(lsb), big-endian, most significant bit to 0
|
||||
PIX_FMT_RGB555LE, ///< packed RGB 5:5:5, 16bpp, (msb)1A 5R 5G 5B(lsb), little-endian, most significant bit to 0
|
||||
|
||||
PIX_FMT_BGR565BE, ///< packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), big-endian
|
||||
PIX_FMT_BGR565LE, ///< packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), little-endian
|
||||
PIX_FMT_BGR555BE, ///< packed BGR 5:5:5, 16bpp, (msb)1A 5B 5G 5R(lsb), big-endian, most significant bit to 1
|
||||
PIX_FMT_BGR555LE, ///< packed BGR 5:5:5, 16bpp, (msb)1A 5B 5G 5R(lsb), little-endian, most significant bit to 1
|
||||
|
||||
PIX_FMT_VAAPI_MOCO, ///< HW acceleration through VA API at motion compensation entry-point, Picture.data[3] contains a vaapi_render_state struct which contains macroblocks as well as various fields extracted from headers
|
||||
PIX_FMT_VAAPI_IDCT, ///< HW acceleration through VA API at IDCT entry-point, Picture.data[3] contains a vaapi_render_state struct which contains fields extracted from headers
|
||||
PIX_FMT_VAAPI_VLD, ///< HW decoding through VA API, Picture.data[3] contains a vaapi_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
|
||||
|
||||
PIX_FMT_YUV420P16LE, ///< planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
|
||||
PIX_FMT_YUV420P16BE, ///< planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
|
||||
PIX_FMT_YUV422P16LE, ///< planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
|
||||
PIX_FMT_YUV422P16BE, ///< planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
|
||||
PIX_FMT_YUV444P16LE, ///< planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
|
||||
PIX_FMT_YUV444P16BE, ///< planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
|
||||
PIX_FMT_VDPAU_MPEG4, ///< MPEG4 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
|
||||
PIX_FMT_DXVA2_VLD, ///< HW decoding through DXVA2, Picture.data[3] contains a LPDIRECT3DSURFACE9 pointer
|
||||
|
||||
PIX_FMT_RGB444LE, ///< packed RGB 4:4:4, 16bpp, (msb)4A 4R 4G 4B(lsb), little-endian, most significant bits to 0
|
||||
PIX_FMT_RGB444BE, ///< packed RGB 4:4:4, 16bpp, (msb)4A 4R 4G 4B(lsb), big-endian, most significant bits to 0
|
||||
PIX_FMT_BGR444LE, ///< packed BGR 4:4:4, 16bpp, (msb)4A 4B 4G 4R(lsb), little-endian, most significant bits to 1
|
||||
PIX_FMT_BGR444BE, ///< packed BGR 4:4:4, 16bpp, (msb)4A 4B 4G 4R(lsb), big-endian, most significant bits to 1
|
||||
PIX_FMT_GRAY8A, ///< 8bit gray, 8bit alpha
|
||||
PIX_FMT_BGR48BE, ///< packed RGB 16:16:16, 48bpp, 16B, 16G, 16R, the 2-byte value for each R/G/B component is stored as big-endian
|
||||
PIX_FMT_BGR48LE, ///< packed RGB 16:16:16, 48bpp, 16B, 16G, 16R, the 2-byte value for each R/G/B component is stored as little-endian
|
||||
|
||||
//the following 10 formats have the disadvantage of needing 1 format for each bit depth, thus
|
||||
//If you want to support multiple bit depths, then using PIX_FMT_YUV420P16* with the bpp stored separately
|
||||
//is better
|
||||
PIX_FMT_YUV420P9BE, ///< planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
|
||||
PIX_FMT_YUV420P9LE, ///< planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
|
||||
PIX_FMT_YUV420P10BE,///< planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
|
||||
PIX_FMT_YUV420P10LE,///< planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
|
||||
PIX_FMT_YUV422P10BE,///< planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
|
||||
PIX_FMT_YUV422P10LE,///< planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
|
||||
PIX_FMT_YUV444P9BE, ///< planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
|
||||
PIX_FMT_YUV444P9LE, ///< planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
|
||||
PIX_FMT_YUV444P10BE,///< planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
|
||||
PIX_FMT_YUV444P10LE,///< planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
|
||||
PIX_FMT_YUV422P9BE, ///< planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
|
||||
PIX_FMT_YUV422P9LE, ///< planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
|
||||
PIX_FMT_VDA_VLD, ///< hardware decoding through VDA
|
||||
|
||||
#ifdef AV_PIX_FMT_ABI_GIT_MASTER |
||||
PIX_FMT_RGBA64BE, ///< packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is stored as big-endian
|
||||
PIX_FMT_RGBA64LE, ///< packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is stored as little-endian
|
||||
PIX_FMT_BGRA64BE, ///< packed RGBA 16:16:16:16, 64bpp, 16B, 16G, 16R, 16A, the 2-byte value for each R/G/B/A component is stored as big-endian
|
||||
PIX_FMT_BGRA64LE, ///< packed RGBA 16:16:16:16, 64bpp, 16B, 16G, 16R, 16A, the 2-byte value for each R/G/B/A component is stored as little-endian
|
||||
#endif |
||||
PIX_FMT_GBRP, ///< planar GBR 4:4:4 24bpp
|
||||
PIX_FMT_GBRP9BE, ///< planar GBR 4:4:4 27bpp, big endian
|
||||
PIX_FMT_GBRP9LE, ///< planar GBR 4:4:4 27bpp, little endian
|
||||
PIX_FMT_GBRP10BE, ///< planar GBR 4:4:4 30bpp, big endian
|
||||
PIX_FMT_GBRP10LE, ///< planar GBR 4:4:4 30bpp, little endian
|
||||
PIX_FMT_GBRP16BE, ///< planar GBR 4:4:4 48bpp, big endian
|
||||
PIX_FMT_GBRP16LE, ///< planar GBR 4:4:4 48bpp, little endian
|
||||
|
||||
#ifndef AV_PIX_FMT_ABI_GIT_MASTER |
||||
PIX_FMT_RGBA64BE=0x123, ///< packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is stored as big-endian
|
||||
PIX_FMT_RGBA64LE, ///< packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is stored as little-endian
|
||||
PIX_FMT_BGRA64BE, ///< packed RGBA 16:16:16:16, 64bpp, 16B, 16G, 16R, 16A, the 2-byte value for each R/G/B/A component is stored as big-endian
|
||||
PIX_FMT_BGRA64LE, ///< packed RGBA 16:16:16:16, 64bpp, 16B, 16G, 16R, 16A, the 2-byte value for each R/G/B/A component is stored as little-endian
|
||||
#endif |
||||
PIX_FMT_0RGB=0x123+4, ///< packed RGB 8:8:8, 32bpp, 0RGB0RGB...
|
||||
PIX_FMT_RGB0, ///< packed RGB 8:8:8, 32bpp, RGB0RGB0...
|
||||
PIX_FMT_0BGR, ///< packed BGR 8:8:8, 32bpp, 0BGR0BGR...
|
||||
PIX_FMT_BGR0, ///< packed BGR 8:8:8, 32bpp, BGR0BGR0...
|
||||
PIX_FMT_YUVA444P, ///< planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
|
||||
PIX_FMT_YUVA422P, ///< planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
|
||||
|
||||
PIX_FMT_YUV420P12BE, ///< planar YUV 4:2:0,18bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
|
||||
PIX_FMT_YUV420P12LE, ///< planar YUV 4:2:0,18bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
|
||||
PIX_FMT_YUV420P14BE, ///< planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
|
||||
PIX_FMT_YUV420P14LE, ///< planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
|
||||
PIX_FMT_YUV422P12BE, ///< planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
|
||||
PIX_FMT_YUV422P12LE, ///< planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
|
||||
PIX_FMT_YUV422P14BE, ///< planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
|
||||
PIX_FMT_YUV422P14LE, ///< planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
|
||||
PIX_FMT_YUV444P12BE, ///< planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
|
||||
PIX_FMT_YUV444P12LE, ///< planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
|
||||
PIX_FMT_YUV444P14BE, ///< planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
|
||||
PIX_FMT_YUV444P14LE, ///< planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
|
||||
PIX_FMT_GBRP12BE, ///< planar GBR 4:4:4 36bpp, big endian
|
||||
PIX_FMT_GBRP12LE, ///< planar GBR 4:4:4 36bpp, little endian
|
||||
PIX_FMT_GBRP14BE, ///< planar GBR 4:4:4 42bpp, big endian
|
||||
PIX_FMT_GBRP14LE, ///< planar GBR 4:4:4 42bpp, little endian
|
||||
|
||||
PIX_FMT_NB, ///< number of pixel formats, DO NOT USE THIS if you want to link with shared libav* because the number of formats might differ between versions
|
||||
#endif /* AVUTIL_OLD_PIX_FMTS_H */ |
@ -1,754 +0,0 @@ |
||||
/*
|
||||
* AVOptions |
||||
* copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_OPT_H |
||||
#define AVUTIL_OPT_H |
||||
|
||||
/**
|
||||
* @file |
||||
* AVOptions |
||||
*/ |
||||
|
||||
#include "rational.h" |
||||
#include "avutil.h" |
||||
#include "dict.h" |
||||
#include "log.h" |
||||
#include "pixfmt.h" |
||||
#include "samplefmt.h" |
||||
|
||||
/**
|
||||
* @defgroup avoptions AVOptions |
||||
* @ingroup lavu_data |
||||
* @{ |
||||
* AVOptions provide a generic system to declare options on arbitrary structs |
||||
* ("objects"). An option can have a help text, a type and a range of possible |
||||
* values. Options may then be enumerated, read and written to. |
||||
* |
||||
* @section avoptions_implement Implementing AVOptions |
||||
* This section describes how to add AVOptions capabilities to a struct. |
||||
* |
||||
* All AVOptions-related information is stored in an AVClass. Therefore |
||||
* the first member of the struct should be a pointer to an AVClass describing it. |
||||
* The option field of the AVClass must be set to a NULL-terminated static array |
||||
* of AVOptions. Each AVOption must have a non-empty name, a type, a default |
||||
* value and for number-type AVOptions also a range of allowed values. It must |
||||
* also declare an offset in bytes from the start of the struct, where the field |
||||
* associated with this AVOption is located. Other fields in the AVOption struct |
||||
* should also be set when applicable, but are not required. |
||||
* |
||||
* The following example illustrates an AVOptions-enabled struct: |
||||
* @code |
||||
* typedef struct test_struct { |
||||
* AVClass *class; |
||||
* int int_opt; |
||||
* char *str_opt; |
||||
* uint8_t *bin_opt; |
||||
* int bin_len; |
||||
* } test_struct; |
||||
* |
||||
* static const AVOption options[] = { |
||||
* { "test_int", "This is a test option of int type.", offsetof(test_struct, int_opt), |
||||
* AV_OPT_TYPE_INT, { .i64 = -1 }, INT_MIN, INT_MAX }, |
||||
* { "test_str", "This is a test option of string type.", offsetof(test_struct, str_opt), |
||||
* AV_OPT_TYPE_STRING }, |
||||
* { "test_bin", "This is a test option of binary type.", offsetof(test_struct, bin_opt), |
||||
* AV_OPT_TYPE_BINARY }, |
||||
* { NULL }, |
||||
* }; |
||||
* |
||||
* static const AVClass test_class = { |
||||
* .class_name = "test class", |
||||
* .item_name = av_default_item_name, |
||||
* .option = options, |
||||
* .version = LIBAVUTIL_VERSION_INT, |
||||
* }; |
||||
* @endcode |
||||
* |
||||
* Next, when allocating your struct, you must ensure that the AVClass pointer |
||||
* is set to the correct value. Then, av_opt_set_defaults() can be called to |
||||
* initialize defaults. After that the struct is ready to be used with the |
||||
* AVOptions API. |
||||
* |
||||
* When cleaning up, you may use the av_opt_free() function to automatically |
||||
* free all the allocated string and binary options. |
||||
* |
||||
* Continuing with the above example: |
||||
* |
||||
* @code |
||||
* test_struct *alloc_test_struct(void) |
||||
* { |
||||
* test_struct *ret = av_malloc(sizeof(*ret)); |
||||
* ret->class = &test_class; |
||||
* av_opt_set_defaults(ret); |
||||
* return ret; |
||||
* } |
||||
* void free_test_struct(test_struct **foo) |
||||
* { |
||||
* av_opt_free(*foo); |
||||
* av_freep(foo); |
||||
* } |
||||
* @endcode |
||||
* |
||||
* @subsection avoptions_implement_nesting Nesting |
||||
* It may happen that an AVOptions-enabled struct contains another |
||||
* AVOptions-enabled struct as a member (e.g. AVCodecContext in |
||||
* libavcodec exports generic options, while its priv_data field exports |
||||
* codec-specific options). In such a case, it is possible to set up the |
||||
* parent struct to export a child's options. To do that, simply |
||||
* implement AVClass.child_next() and AVClass.child_class_next() in the |
||||
* parent struct's AVClass. |
||||
* Assuming that the test_struct from above now also contains a |
||||
* child_struct field: |
||||
* |
||||
* @code |
||||
* typedef struct child_struct { |
||||
* AVClass *class; |
||||
* int flags_opt; |
||||
* } child_struct; |
||||
* static const AVOption child_opts[] = { |
||||
* { "test_flags", "This is a test option of flags type.", |
||||
* offsetof(child_struct, flags_opt), AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT_MIN, INT_MAX }, |
||||
* { NULL }, |
||||
* }; |
||||
* static const AVClass child_class = { |
||||
* .class_name = "child class", |
||||
* .item_name = av_default_item_name, |
||||
* .option = child_opts, |
||||
* .version = LIBAVUTIL_VERSION_INT, |
||||
* }; |
||||
* |
||||
* void *child_next(void *obj, void *prev) |
||||
* { |
||||
* test_struct *t = obj; |
||||
* if (!prev && t->child_struct) |
||||
* return t->child_struct; |
||||
* return NULL |
||||
* } |
||||
* const AVClass child_class_next(const AVClass *prev) |
||||
* { |
||||
* return prev ? NULL : &child_class; |
||||
* } |
||||
* @endcode |
||||
* Putting child_next() and child_class_next() as defined above into |
||||
* test_class will now make child_struct's options accessible through |
||||
* test_struct (again, proper setup as described above needs to be done on |
||||
* child_struct right after it is created). |
||||
* |
||||
* From the above example it might not be clear why both child_next() |
||||
* and child_class_next() are needed. The distinction is that child_next() |
||||
* iterates over actually existing objects, while child_class_next() |
||||
* iterates over all possible child classes. E.g. if an AVCodecContext |
||||
* was initialized to use a codec which has private options, then its |
||||
* child_next() will return AVCodecContext.priv_data and finish |
||||
* iterating. OTOH child_class_next() on AVCodecContext.av_class will |
||||
* iterate over all available codecs with private options. |
||||
* |
||||
* @subsection avoptions_implement_named_constants Named constants |
||||
* It is possible to create named constants for options. Simply set the unit |
||||
* field of the option the constants should apply to to a string and |
||||
* create the constants themselves as options of type AV_OPT_TYPE_CONST |
||||
* with their unit field set to the same string. |
||||
* Their default_val field should contain the value of the named |
||||
* constant. |
||||
* For example, to add some named constants for the test_flags option |
||||
* above, put the following into the child_opts array: |
||||
* @code |
||||
* { "test_flags", "This is a test option of flags type.", |
||||
* offsetof(child_struct, flags_opt), AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT_MIN, INT_MAX, "test_unit" }, |
||||
* { "flag1", "This is a flag with value 16", 0, AV_OPT_TYPE_CONST, { .i64 = 16 }, 0, 0, "test_unit" }, |
||||
* @endcode |
||||
* |
||||
* @section avoptions_use Using AVOptions |
||||
* This section deals with accessing options in an AVOptions-enabled struct. |
||||
* Such structs in FFmpeg are e.g. AVCodecContext in libavcodec or |
||||
* AVFormatContext in libavformat. |
||||
* |
||||
* @subsection avoptions_use_examine Examining AVOptions |
||||
* The basic functions for examining options are av_opt_next(), which iterates |
||||
* over all options defined for one object, and av_opt_find(), which searches |
||||
* for an option with the given name. |
||||
* |
||||
* The situation is more complicated with nesting. An AVOptions-enabled struct |
||||
* may have AVOptions-enabled children. Passing the AV_OPT_SEARCH_CHILDREN flag |
||||
* to av_opt_find() will make the function search children recursively. |
||||
* |
||||
* For enumerating there are basically two cases. The first is when you want to |
||||
* get all options that may potentially exist on the struct and its children |
||||
* (e.g. when constructing documentation). In that case you should call |
||||
* av_opt_child_class_next() recursively on the parent struct's AVClass. The |
||||
* second case is when you have an already initialized struct with all its |
||||
* children and you want to get all options that can be actually written or read |
||||
* from it. In that case you should call av_opt_child_next() recursively (and |
||||
* av_opt_next() on each result). |
||||
* |
||||
* @subsection avoptions_use_get_set Reading and writing AVOptions |
||||
* When setting options, you often have a string read directly from the |
||||
* user. In such a case, simply passing it to av_opt_set() is enough. For |
||||
* non-string type options, av_opt_set() will parse the string according to the |
||||
* option type. |
||||
* |
||||
* Similarly av_opt_get() will read any option type and convert it to a string |
||||
* which will be returned. Do not forget that the string is allocated, so you |
||||
* have to free it with av_free(). |
||||
* |
||||
* In some cases it may be more convenient to put all options into an |
||||
* AVDictionary and call av_opt_set_dict() on it. A specific case of this |
||||
* are the format/codec open functions in lavf/lavc which take a dictionary |
||||
* filled with option as a parameter. This allows to set some options |
||||
* that cannot be set otherwise, since e.g. the input file format is not known |
||||
* before the file is actually opened. |
||||
*/ |
||||
|
||||
enum AVOptionType{ |
||||
AV_OPT_TYPE_FLAGS, |
||||
AV_OPT_TYPE_INT, |
||||
AV_OPT_TYPE_INT64, |
||||
AV_OPT_TYPE_DOUBLE, |
||||
AV_OPT_TYPE_FLOAT, |
||||
AV_OPT_TYPE_STRING, |
||||
AV_OPT_TYPE_RATIONAL, |
||||
AV_OPT_TYPE_BINARY, ///< offset must point to a pointer immediately followed by an int for the length
|
||||
AV_OPT_TYPE_CONST = 128, |
||||
AV_OPT_TYPE_IMAGE_SIZE = MKBETAG('S','I','Z','E'), ///< offset must point to two consecutive integers
|
||||
AV_OPT_TYPE_PIXEL_FMT = MKBETAG('P','F','M','T'), |
||||
AV_OPT_TYPE_SAMPLE_FMT = MKBETAG('S','F','M','T'), |
||||
AV_OPT_TYPE_VIDEO_RATE = MKBETAG('V','R','A','T'), ///< offset must point to AVRational
|
||||
AV_OPT_TYPE_DURATION = MKBETAG('D','U','R',' '), |
||||
AV_OPT_TYPE_COLOR = MKBETAG('C','O','L','R'), |
||||
#if FF_API_OLD_AVOPTIONS |
||||
FF_OPT_TYPE_FLAGS = 0, |
||||
FF_OPT_TYPE_INT, |
||||
FF_OPT_TYPE_INT64, |
||||
FF_OPT_TYPE_DOUBLE, |
||||
FF_OPT_TYPE_FLOAT, |
||||
FF_OPT_TYPE_STRING, |
||||
FF_OPT_TYPE_RATIONAL, |
||||
FF_OPT_TYPE_BINARY, ///< offset must point to a pointer immediately followed by an int for the length
|
||||
FF_OPT_TYPE_CONST=128, |
||||
#endif |
||||
}; |
||||
|
||||
/**
|
||||
* AVOption |
||||
*/ |
||||
typedef struct AVOption { |
||||
const char *name; |
||||
|
||||
/**
|
||||
* short English help text |
||||
* @todo What about other languages? |
||||
*/ |
||||
const char *help; |
||||
|
||||
/**
|
||||
* The offset relative to the context structure where the option |
||||
* value is stored. It should be 0 for named constants. |
||||
*/ |
||||
int offset; |
||||
enum AVOptionType type; |
||||
|
||||
/**
|
||||
* the default value for scalar options |
||||
*/ |
||||
union { |
||||
int64_t i64; |
||||
double dbl; |
||||
const char *str; |
||||
/* TODO those are unused now */ |
||||
AVRational q; |
||||
} default_val; |
||||
double min; ///< minimum valid value for the option
|
||||
double max; ///< maximum valid value for the option
|
||||
|
||||
int flags; |
||||
#define AV_OPT_FLAG_ENCODING_PARAM 1 ///< a generic parameter which can be set by the user for muxing or encoding
|
||||
#define AV_OPT_FLAG_DECODING_PARAM 2 ///< a generic parameter which can be set by the user for demuxing or decoding
|
||||
#define AV_OPT_FLAG_METADATA 4 ///< some data extracted or inserted into the file like title, comment, ...
|
||||
#define AV_OPT_FLAG_AUDIO_PARAM 8 |
||||
#define AV_OPT_FLAG_VIDEO_PARAM 16 |
||||
#define AV_OPT_FLAG_SUBTITLE_PARAM 32 |
||||
#define AV_OPT_FLAG_FILTERING_PARAM (1<<16) ///< a generic parameter which can be set by the user for filtering
|
||||
//FIXME think about enc-audio, ... style flags
|
||||
|
||||
/**
|
||||
* The logical unit to which the option belongs. Non-constant |
||||
* options and corresponding named constants share the same |
||||
* unit. May be NULL. |
||||
*/ |
||||
const char *unit; |
||||
} AVOption; |
||||
|
||||
/**
|
||||
* A single allowed range of values, or a single allowed value. |
||||
*/ |
||||
typedef struct AVOptionRange { |
||||
const char *str; |
||||
double value_min, value_max; ///< For string ranges this represents the min/max length, for dimensions this represents the min/max pixel count
|
||||
double component_min, component_max; ///< For string this represents the unicode range for chars, 0-127 limits to ASCII
|
||||
int is_range; ///< if set to 1 the struct encodes a range, if set to 0 a single value
|
||||
} AVOptionRange; |
||||
|
||||
/**
|
||||
* List of AVOptionRange structs |
||||
*/ |
||||
typedef struct AVOptionRanges { |
||||
AVOptionRange **range; |
||||
int nb_ranges; |
||||
} AVOptionRanges; |
||||
|
||||
|
||||
#if FF_API_FIND_OPT |
||||
/**
|
||||
* Look for an option in obj. Look only for the options which |
||||
* have the flags set as specified in mask and flags (that is, |
||||
* for which it is the case that opt->flags & mask == flags). |
||||
* |
||||
* @param[in] obj a pointer to a struct whose first element is a |
||||
* pointer to an AVClass |
||||
* @param[in] name the name of the option to look for |
||||
* @param[in] unit the unit of the option to look for, or any if NULL |
||||
* @return a pointer to the option found, or NULL if no option |
||||
* has been found |
||||
* |
||||
* @deprecated use av_opt_find. |
||||
*/ |
||||
attribute_deprecated |
||||
const AVOption *av_find_opt(void *obj, const char *name, const char *unit, int mask, int flags); |
||||
#endif |
||||
|
||||
#if FF_API_OLD_AVOPTIONS |
||||
/**
|
||||
* Set the field of obj with the given name to value. |
||||
* |
||||
* @param[in] obj A struct whose first element is a pointer to an |
||||
* AVClass. |
||||
* @param[in] name the name of the field to set |
||||
* @param[in] val The value to set. If the field is not of a string |
||||
* type, then the given string is parsed. |
||||
* SI postfixes and some named scalars are supported. |
||||
* If the field is of a numeric type, it has to be a numeric or named |
||||
* scalar. Behavior with more than one scalar and +- infix operators |
||||
* is undefined. |
||||
* If the field is of a flags type, it has to be a sequence of numeric |
||||
* scalars or named flags separated by '+' or '-'. Prefixing a flag |
||||
* with '+' causes it to be set without affecting the other flags; |
||||
* similarly, '-' unsets a flag. |
||||
* @param[out] o_out if non-NULL put here a pointer to the AVOption |
||||
* found |
||||
* @param alloc this parameter is currently ignored |
||||
* @return 0 if the value has been set, or an AVERROR code in case of |
||||
* error: |
||||
* AVERROR_OPTION_NOT_FOUND if no matching option exists |
||||
* AVERROR(ERANGE) if the value is out of range |
||||
* AVERROR(EINVAL) if the value is not valid |
||||
* @deprecated use av_opt_set() |
||||
*/ |
||||
attribute_deprecated |
||||
int av_set_string3(void *obj, const char *name, const char *val, int alloc, const AVOption **o_out); |
||||
|
||||
attribute_deprecated const AVOption *av_set_double(void *obj, const char *name, double n); |
||||
attribute_deprecated const AVOption *av_set_q(void *obj, const char *name, AVRational n); |
||||
attribute_deprecated const AVOption *av_set_int(void *obj, const char *name, int64_t n); |
||||
|
||||
double av_get_double(void *obj, const char *name, const AVOption **o_out); |
||||
AVRational av_get_q(void *obj, const char *name, const AVOption **o_out); |
||||
int64_t av_get_int(void *obj, const char *name, const AVOption **o_out); |
||||
attribute_deprecated const char *av_get_string(void *obj, const char *name, const AVOption **o_out, char *buf, int buf_len); |
||||
attribute_deprecated const AVOption *av_next_option(void *obj, const AVOption *last); |
||||
#endif |
||||
|
||||
/**
|
||||
* Show the obj options. |
||||
* |
||||
* @param req_flags requested flags for the options to show. Show only the |
||||
* options for which it is opt->flags & req_flags. |
||||
* @param rej_flags rejected flags for the options to show. Show only the |
||||
* options for which it is !(opt->flags & req_flags). |
||||
* @param av_log_obj log context to use for showing the options |
||||
*/ |
||||
int av_opt_show2(void *obj, void *av_log_obj, int req_flags, int rej_flags); |
||||
|
||||
/**
|
||||
* Set the values of all AVOption fields to their default values. |
||||
* |
||||
* @param s an AVOption-enabled struct (its first member must be a pointer to AVClass) |
||||
*/ |
||||
void av_opt_set_defaults(void *s); |
||||
|
||||
#if FF_API_OLD_AVOPTIONS |
||||
attribute_deprecated |
||||
void av_opt_set_defaults2(void *s, int mask, int flags); |
||||
#endif |
||||
|
||||
/**
|
||||
* Parse the key/value pairs list in opts. For each key/value pair |
||||
* found, stores the value in the field in ctx that is named like the |
||||
* key. ctx must be an AVClass context, storing is done using |
||||
* AVOptions. |
||||
* |
||||
* @param opts options string to parse, may be NULL |
||||
* @param key_val_sep a 0-terminated list of characters used to |
||||
* separate key from value |
||||
* @param pairs_sep a 0-terminated list of characters used to separate |
||||
* two pairs from each other |
||||
* @return the number of successfully set key/value pairs, or a negative |
||||
* value corresponding to an AVERROR code in case of error: |
||||
* AVERROR(EINVAL) if opts cannot be parsed, |
||||
* the error code issued by av_set_string3() if a key/value pair |
||||
* cannot be set |
||||
*/ |
||||
int av_set_options_string(void *ctx, const char *opts, |
||||
const char *key_val_sep, const char *pairs_sep); |
||||
|
||||
/**
|
||||
* Parse the key-value pairs list in opts. For each key=value pair found, |
||||
* set the value of the corresponding option in ctx. |
||||
* |
||||
* @param ctx the AVClass object to set options on |
||||
* @param opts the options string, key-value pairs separated by a |
||||
* delimiter |
||||
* @param shorthand a NULL-terminated array of options names for shorthand |
||||
* notation: if the first field in opts has no key part, |
||||
* the key is taken from the first element of shorthand; |
||||
* then again for the second, etc., until either opts is |
||||
* finished, shorthand is finished or a named option is |
||||
* found; after that, all options must be named |
||||
* @param key_val_sep a 0-terminated list of characters used to separate |
||||
* key from value, for example '=' |
||||
* @param pairs_sep a 0-terminated list of characters used to separate |
||||
* two pairs from each other, for example ':' or ',' |
||||
* @return the number of successfully set key=value pairs, or a negative |
||||
* value corresponding to an AVERROR code in case of error: |
||||
* AVERROR(EINVAL) if opts cannot be parsed, |
||||
* the error code issued by av_set_string3() if a key/value pair |
||||
* cannot be set |
||||
* |
||||
* Options names must use only the following characters: a-z A-Z 0-9 - . / _ |
||||
* Separators must use characters distinct from option names and from each |
||||
* other. |
||||
*/ |
||||
int av_opt_set_from_string(void *ctx, const char *opts, |
||||
const char *const *shorthand, |
||||
const char *key_val_sep, const char *pairs_sep); |
||||
/**
|
||||
* Free all string and binary options in obj. |
||||
*/ |
||||
void av_opt_free(void *obj); |
||||
|
||||
/**
|
||||
* Check whether a particular flag is set in a flags field. |
||||
* |
||||
* @param field_name the name of the flag field option |
||||
* @param flag_name the name of the flag to check |
||||
* @return non-zero if the flag is set, zero if the flag isn't set, |
||||
* isn't of the right type, or the flags field doesn't exist. |
||||
*/ |
||||
int av_opt_flag_is_set(void *obj, const char *field_name, const char *flag_name); |
||||
|
||||
/**
|
||||
* Set all the options from a given dictionary on an object. |
||||
* |
||||
* @param obj a struct whose first element is a pointer to AVClass |
||||
* @param options options to process. This dictionary will be freed and replaced |
||||
* by a new one containing all options not found in obj. |
||||
* Of course this new dictionary needs to be freed by caller |
||||
* with av_dict_free(). |
||||
* |
||||
* @return 0 on success, a negative AVERROR if some option was found in obj, |
||||
* but could not be set. |
||||
* |
||||
* @see av_dict_copy() |
||||
*/ |
||||
int av_opt_set_dict(void *obj, struct AVDictionary **options); |
||||
|
||||
/**
|
||||
* Extract a key-value pair from the beginning of a string. |
||||
* |
||||
* @param ropts pointer to the options string, will be updated to |
||||
* point to the rest of the string (one of the pairs_sep |
||||
* or the final NUL) |
||||
* @param key_val_sep a 0-terminated list of characters used to separate |
||||
* key from value, for example '=' |
||||
* @param pairs_sep a 0-terminated list of characters used to separate |
||||
* two pairs from each other, for example ':' or ',' |
||||
* @param flags flags; see the AV_OPT_FLAG_* values below |
||||
* @param rkey parsed key; must be freed using av_free() |
||||
* @param rval parsed value; must be freed using av_free() |
||||
* |
||||
* @return >=0 for success, or a negative value corresponding to an |
||||
* AVERROR code in case of error; in particular: |
||||
* AVERROR(EINVAL) if no key is present |
||||
* |
||||
*/ |
||||
int av_opt_get_key_value(const char **ropts, |
||||
const char *key_val_sep, const char *pairs_sep, |
||||
unsigned flags, |
||||
char **rkey, char **rval); |
||||
|
||||
enum { |
||||
|
||||
/**
|
||||
* Accept to parse a value without a key; the key will then be returned |
||||
* as NULL. |
||||
*/ |
||||
AV_OPT_FLAG_IMPLICIT_KEY = 1, |
||||
}; |
||||
|
||||
/**
|
||||
* @defgroup opt_eval_funcs Evaluating option strings |
||||
* @{ |
||||
* This group of functions can be used to evaluate option strings |
||||
* and get numbers out of them. They do the same thing as av_opt_set(), |
||||
* except the result is written into the caller-supplied pointer. |
||||
* |
||||
* @param obj a struct whose first element is a pointer to AVClass. |
||||
* @param o an option for which the string is to be evaluated. |
||||
* @param val string to be evaluated. |
||||
* @param *_out value of the string will be written here. |
||||
* |
||||
* @return 0 on success, a negative number on failure. |
||||
*/ |
||||
int av_opt_eval_flags (void *obj, const AVOption *o, const char *val, int *flags_out); |
||||
int av_opt_eval_int (void *obj, const AVOption *o, const char *val, int *int_out); |
||||
int av_opt_eval_int64 (void *obj, const AVOption *o, const char *val, int64_t *int64_out); |
||||
int av_opt_eval_float (void *obj, const AVOption *o, const char *val, float *float_out); |
||||
int av_opt_eval_double(void *obj, const AVOption *o, const char *val, double *double_out); |
||||
int av_opt_eval_q (void *obj, const AVOption *o, const char *val, AVRational *q_out); |
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#define AV_OPT_SEARCH_CHILDREN 0x0001 /**< Search in possible children of the |
||||
given object first. */ |
||||
/**
|
||||
* The obj passed to av_opt_find() is fake -- only a double pointer to AVClass |
||||
* instead of a required pointer to a struct containing AVClass. This is |
||||
* useful for searching for options without needing to allocate the corresponding |
||||
* object. |
||||
*/ |
||||
#define AV_OPT_SEARCH_FAKE_OBJ 0x0002 |
||||
|
||||
/**
|
||||
* Look for an option in an object. Consider only options which |
||||
* have all the specified flags set. |
||||
* |
||||
* @param[in] obj A pointer to a struct whose first element is a |
||||
* pointer to an AVClass. |
||||
* Alternatively a double pointer to an AVClass, if |
||||
* AV_OPT_SEARCH_FAKE_OBJ search flag is set. |
||||
* @param[in] name The name of the option to look for. |
||||
* @param[in] unit When searching for named constants, name of the unit |
||||
* it belongs to. |
||||
* @param opt_flags Find only options with all the specified flags set (AV_OPT_FLAG). |
||||
* @param search_flags A combination of AV_OPT_SEARCH_*. |
||||
* |
||||
* @return A pointer to the option found, or NULL if no option |
||||
* was found. |
||||
* |
||||
* @note Options found with AV_OPT_SEARCH_CHILDREN flag may not be settable |
||||
* directly with av_set_string3(). Use special calls which take an options |
||||
* AVDictionary (e.g. avformat_open_input()) to set options found with this |
||||
* flag. |
||||
*/ |
||||
const AVOption *av_opt_find(void *obj, const char *name, const char *unit, |
||||
int opt_flags, int search_flags); |
||||
|
||||
/**
|
||||
* Look for an option in an object. Consider only options which |
||||
* have all the specified flags set. |
||||
* |
||||
* @param[in] obj A pointer to a struct whose first element is a |
||||
* pointer to an AVClass. |
||||
* Alternatively a double pointer to an AVClass, if |
||||
* AV_OPT_SEARCH_FAKE_OBJ search flag is set. |
||||
* @param[in] name The name of the option to look for. |
||||
* @param[in] unit When searching for named constants, name of the unit |
||||
* it belongs to. |
||||
* @param opt_flags Find only options with all the specified flags set (AV_OPT_FLAG). |
||||
* @param search_flags A combination of AV_OPT_SEARCH_*. |
||||
* @param[out] target_obj if non-NULL, an object to which the option belongs will be |
||||
* written here. It may be different from obj if AV_OPT_SEARCH_CHILDREN is present |
||||
* in search_flags. This parameter is ignored if search_flags contain |
||||
* AV_OPT_SEARCH_FAKE_OBJ. |
||||
* |
||||
* @return A pointer to the option found, or NULL if no option |
||||
* was found. |
||||
*/ |
||||
const AVOption *av_opt_find2(void *obj, const char *name, const char *unit, |
||||
int opt_flags, int search_flags, void **target_obj); |
||||
|
||||
/**
|
||||
* Iterate over all AVOptions belonging to obj. |
||||
* |
||||
* @param obj an AVOptions-enabled struct or a double pointer to an |
||||
* AVClass describing it. |
||||
* @param prev result of the previous call to av_opt_next() on this object |
||||
* or NULL |
||||
* @return next AVOption or NULL |
||||
*/ |
||||
const AVOption *av_opt_next(void *obj, const AVOption *prev); |
||||
|
||||
/**
|
||||
* Iterate over AVOptions-enabled children of obj. |
||||
* |
||||
* @param prev result of a previous call to this function or NULL |
||||
* @return next AVOptions-enabled child or NULL |
||||
*/ |
||||
void *av_opt_child_next(void *obj, void *prev); |
||||
|
||||
/**
|
||||
* Iterate over potential AVOptions-enabled children of parent. |
||||
* |
||||
* @param prev result of a previous call to this function or NULL |
||||
* @return AVClass corresponding to next potential child or NULL |
||||
*/ |
||||
const AVClass *av_opt_child_class_next(const AVClass *parent, const AVClass *prev); |
||||
|
||||
/**
|
||||
* @defgroup opt_set_funcs Option setting functions |
||||
* @{ |
||||
* Those functions set the field of obj with the given name to value. |
||||
* |
||||
* @param[in] obj A struct whose first element is a pointer to an AVClass. |
||||
* @param[in] name the name of the field to set |
||||
* @param[in] val The value to set. In case of av_opt_set() if the field is not |
||||
* of a string type, then the given string is parsed. |
||||
* SI postfixes and some named scalars are supported. |
||||
* If the field is of a numeric type, it has to be a numeric or named |
||||
* scalar. Behavior with more than one scalar and +- infix operators |
||||
* is undefined. |
||||
* If the field is of a flags type, it has to be a sequence of numeric |
||||
* scalars or named flags separated by '+' or '-'. Prefixing a flag |
||||
* with '+' causes it to be set without affecting the other flags; |
||||
* similarly, '-' unsets a flag. |
||||
* @param search_flags flags passed to av_opt_find2. I.e. if AV_OPT_SEARCH_CHILDREN |
||||
* is passed here, then the option may be set on a child of obj. |
||||
* |
||||
* @return 0 if the value has been set, or an AVERROR code in case of |
||||
* error: |
||||
* AVERROR_OPTION_NOT_FOUND if no matching option exists |
||||
* AVERROR(ERANGE) if the value is out of range |
||||
* AVERROR(EINVAL) if the value is not valid |
||||
*/ |
||||
int av_opt_set (void *obj, const char *name, const char *val, int search_flags); |
||||
int av_opt_set_int (void *obj, const char *name, int64_t val, int search_flags); |
||||
int av_opt_set_double(void *obj, const char *name, double val, int search_flags); |
||||
int av_opt_set_q (void *obj, const char *name, AVRational val, int search_flags); |
||||
int av_opt_set_bin (void *obj, const char *name, const uint8_t *val, int size, int search_flags); |
||||
int av_opt_set_image_size(void *obj, const char *name, int w, int h, int search_flags); |
||||
int av_opt_set_pixel_fmt (void *obj, const char *name, enum AVPixelFormat fmt, int search_flags); |
||||
int av_opt_set_sample_fmt(void *obj, const char *name, enum AVSampleFormat fmt, int search_flags); |
||||
int av_opt_set_video_rate(void *obj, const char *name, AVRational val, int search_flags); |
||||
|
||||
/**
|
||||
* Set a binary option to an integer list. |
||||
* |
||||
* @param obj AVClass object to set options on |
||||
* @param name name of the binary option |
||||
* @param val pointer to an integer list (must have the correct type with |
||||
* regard to the contents of the list) |
||||
* @param term list terminator (usually 0 or -1) |
||||
* @param flags search flags |
||||
*/ |
||||
#define av_opt_set_int_list(obj, name, val, term, flags) \ |
||||
(av_int_list_length(val, term) > INT_MAX / sizeof(*(val)) ? \
|
||||
AVERROR(EINVAL) : \
|
||||
av_opt_set_bin(obj, name, (const uint8_t *)(val), \
|
||||
av_int_list_length(val, term) * sizeof(*(val)), flags)) |
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
/**
|
||||
* @defgroup opt_get_funcs Option getting functions |
||||
* @{ |
||||
* Those functions get a value of the option with the given name from an object. |
||||
* |
||||
* @param[in] obj a struct whose first element is a pointer to an AVClass. |
||||
* @param[in] name name of the option to get. |
||||
* @param[in] search_flags flags passed to av_opt_find2. I.e. if AV_OPT_SEARCH_CHILDREN |
||||
* is passed here, then the option may be found in a child of obj. |
||||
* @param[out] out_val value of the option will be written here |
||||
* @return 0 on success, a negative error code otherwise |
||||
*/ |
||||
/**
|
||||
* @note the returned string will av_malloc()ed and must be av_free()ed by the caller |
||||
*/ |
||||
int av_opt_get (void *obj, const char *name, int search_flags, uint8_t **out_val); |
||||
int av_opt_get_int (void *obj, const char *name, int search_flags, int64_t *out_val); |
||||
int av_opt_get_double(void *obj, const char *name, int search_flags, double *out_val); |
||||
int av_opt_get_q (void *obj, const char *name, int search_flags, AVRational *out_val); |
||||
int av_opt_get_image_size(void *obj, const char *name, int search_flags, int *w_out, int *h_out); |
||||
int av_opt_get_pixel_fmt (void *obj, const char *name, int search_flags, enum AVPixelFormat *out_fmt); |
||||
int av_opt_get_sample_fmt(void *obj, const char *name, int search_flags, enum AVSampleFormat *out_fmt); |
||||
int av_opt_get_video_rate(void *obj, const char *name, int search_flags, AVRational *out_val); |
||||
/**
|
||||
* @} |
||||
*/ |
||||
/**
|
||||
* Gets a pointer to the requested field in a struct. |
||||
* This function allows accessing a struct even when its fields are moved or |
||||
* renamed since the application making the access has been compiled, |
||||
* |
||||
* @returns a pointer to the field, it can be cast to the correct type and read |
||||
* or written to. |
||||
*/ |
||||
void *av_opt_ptr(const AVClass *avclass, void *obj, const char *name); |
||||
|
||||
/**
|
||||
* Free an AVOptionRanges struct and set it to NULL. |
||||
*/ |
||||
void av_opt_freep_ranges(AVOptionRanges **ranges); |
||||
|
||||
/**
|
||||
* Get a list of allowed ranges for the given option. |
||||
* |
||||
* The returned list may depend on other fields in obj like for example profile. |
||||
* |
||||
* @param flags is a bitmask of flags, undefined flags should not be set and should be ignored |
||||
* AV_OPT_SEARCH_FAKE_OBJ indicates that the obj is a double pointer to a AVClass instead of a full instance |
||||
* |
||||
* The result must be freed with av_opt_freep_ranges. |
||||
* |
||||
* @return >= 0 on success, a negative errro code otherwise |
||||
*/ |
||||
int av_opt_query_ranges(AVOptionRanges **, void *obj, const char *key, int flags); |
||||
|
||||
/**
|
||||
* Get a default list of allowed ranges for the given option. |
||||
* |
||||
* This list is constructed without using the AVClass.query_ranges() callback |
||||
* and can be used as fallback from within the callback. |
||||
* |
||||
* @param flags is a bitmask of flags, undefined flags should not be set and should be ignored |
||||
* AV_OPT_SEARCH_FAKE_OBJ indicates that the obj is a double pointer to a AVClass instead of a full instance |
||||
* |
||||
* The result must be freed with av_opt_free_ranges. |
||||
* |
||||
* @return >= 0 on success, a negative errro code otherwise |
||||
*/ |
||||
int av_opt_query_ranges_default(AVOptionRanges **, void *obj, const char *key, int flags); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_OPT_H */ |
@ -1,174 +0,0 @@ |
||||
/*
|
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_PARSEUTILS_H |
||||
#define AVUTIL_PARSEUTILS_H |
||||
|
||||
#include <time.h> |
||||
|
||||
#include "rational.h" |
||||
|
||||
/**
|
||||
* @file |
||||
* misc parsing utilities |
||||
*/ |
||||
|
||||
/**
|
||||
* Parse str and store the parsed ratio in q. |
||||
* |
||||
* Note that a ratio with infinite (1/0) or negative value is |
||||
* considered valid, so you should check on the returned value if you |
||||
* want to exclude those values. |
||||
* |
||||
* The undefined value can be expressed using the "0:0" string. |
||||
* |
||||
* @param[in,out] q pointer to the AVRational which will contain the ratio |
||||
* @param[in] str the string to parse: it has to be a string in the format |
||||
* num:den, a float number or an expression |
||||
* @param[in] max the maximum allowed numerator and denominator |
||||
* @param[in] log_offset log level offset which is applied to the log |
||||
* level of log_ctx |
||||
* @param[in] log_ctx parent logging context |
||||
* @return >= 0 on success, a negative error code otherwise |
||||
*/ |
||||
int av_parse_ratio(AVRational *q, const char *str, int max, |
||||
int log_offset, void *log_ctx); |
||||
|
||||
#define av_parse_ratio_quiet(rate, str, max) \ |
||||
av_parse_ratio(rate, str, max, AV_LOG_MAX_OFFSET, NULL) |
||||
|
||||
/**
|
||||
* Parse str and put in width_ptr and height_ptr the detected values. |
||||
* |
||||
* @param[in,out] width_ptr pointer to the variable which will contain the detected |
||||
* width value |
||||
* @param[in,out] height_ptr pointer to the variable which will contain the detected |
||||
* height value |
||||
* @param[in] str the string to parse: it has to be a string in the format |
||||
* width x height or a valid video size abbreviation. |
||||
* @return >= 0 on success, a negative error code otherwise |
||||
*/ |
||||
int av_parse_video_size(int *width_ptr, int *height_ptr, const char *str); |
||||
|
||||
/**
|
||||
* Parse str and store the detected values in *rate. |
||||
* |
||||
* @param[in,out] rate pointer to the AVRational which will contain the detected |
||||
* frame rate |
||||
* @param[in] str the string to parse: it has to be a string in the format |
||||
* rate_num / rate_den, a float number or a valid video rate abbreviation |
||||
* @return >= 0 on success, a negative error code otherwise |
||||
*/ |
||||
int av_parse_video_rate(AVRational *rate, const char *str); |
||||
|
||||
/**
|
||||
* Put the RGBA values that correspond to color_string in rgba_color. |
||||
* |
||||
* @param color_string a string specifying a color. It can be the name of |
||||
* a color (case insensitive match) or a [0x|#]RRGGBB[AA] sequence, |
||||
* possibly followed by "@" and a string representing the alpha |
||||
* component. |
||||
* The alpha component may be a string composed by "0x" followed by an |
||||
* hexadecimal number or a decimal number between 0.0 and 1.0, which |
||||
* represents the opacity value (0x00/0.0 means completely transparent, |
||||
* 0xff/1.0 completely opaque). |
||||
* If the alpha component is not specified then 0xff is assumed. |
||||
* The string "random" will result in a random color. |
||||
* @param slen length of the initial part of color_string containing the |
||||
* color. It can be set to -1 if color_string is a null terminated string |
||||
* containing nothing else than the color. |
||||
* @return >= 0 in case of success, a negative value in case of |
||||
* failure (for example if color_string cannot be parsed). |
||||
*/ |
||||
int av_parse_color(uint8_t *rgba_color, const char *color_string, int slen, |
||||
void *log_ctx); |
||||
|
||||
/**
|
||||
* Parse timestr and return in *time a corresponding number of |
||||
* microseconds. |
||||
* |
||||
* @param timeval puts here the number of microseconds corresponding |
||||
* to the string in timestr. If the string represents a duration, it |
||||
* is the number of microseconds contained in the time interval. If |
||||
* the string is a date, is the number of microseconds since 1st of |
||||
* January, 1970 up to the time of the parsed date. If timestr cannot |
||||
* be successfully parsed, set *time to INT64_MIN. |
||||
|
||||
* @param timestr a string representing a date or a duration. |
||||
* - If a date the syntax is: |
||||
* @code |
||||
* [{YYYY-MM-DD|YYYYMMDD}[T|t| ]]{{HH:MM:SS[.m...]]]}|{HHMMSS[.m...]]]}}[Z] |
||||
* now |
||||
* @endcode |
||||
* If the value is "now" it takes the current time. |
||||
* Time is local time unless Z is appended, in which case it is |
||||
* interpreted as UTC. |
||||
* If the year-month-day part is not specified it takes the current |
||||
* year-month-day. |
||||
* - If a duration the syntax is: |
||||
* @code |
||||
* [-][HH:]MM:SS[.m...] |
||||
* [-]S+[.m...] |
||||
* @endcode |
||||
* @param duration flag which tells how to interpret timestr, if not |
||||
* zero timestr is interpreted as a duration, otherwise as a date |
||||
* @return 0 in case of success, a negative value corresponding to an |
||||
* AVERROR code otherwise |
||||
*/ |
||||
int av_parse_time(int64_t *timeval, const char *timestr, int duration); |
||||
|
||||
/**
|
||||
* Parse the input string p according to the format string fmt and |
||||
* store its results in the structure dt. |
||||
* This implementation supports only a subset of the formats supported |
||||
* by the standard strptime(). |
||||
* |
||||
* In particular it actually supports the parameters: |
||||
* - %H: the hour as a decimal number, using a 24-hour clock, in the |
||||
* range '00' through '23' |
||||
* - %J: hours as a decimal number, in the range '0' through INT_MAX |
||||
* - %M: the minute as a decimal number, using a 24-hour clock, in the |
||||
* range '00' through '59' |
||||
* - %S: the second as a decimal number, using a 24-hour clock, in the |
||||
* range '00' through '59' |
||||
* - %Y: the year as a decimal number, using the Gregorian calendar |
||||
* - %m: the month as a decimal number, in the range '1' through '12' |
||||
* - %d: the day of the month as a decimal number, in the range '1' |
||||
* through '31' |
||||
* - %%: a literal '%' |
||||
* |
||||
* @return a pointer to the first character not processed in this |
||||
* function call, or NULL in case the function fails to match all of |
||||
* the fmt string and therefore an error occurred |
||||
*/ |
||||
char *av_small_strptime(const char *p, const char *fmt, struct tm *dt); |
||||
|
||||
/**
|
||||
* Attempt to find a specific tag in a URL. |
||||
* |
||||
* syntax: '?tag1=val1&tag2=val2...'. Little URL decoding is done. |
||||
* Return 1 if found. |
||||
*/ |
||||
int av_find_info_tag(char *arg, int arg_size, const char *tag1, const char *info); |
||||
|
||||
/**
|
||||
* Convert the decomposed UTC time in tm to a time_t value. |
||||
*/ |
||||
time_t av_timegm(struct tm *tm); |
||||
|
||||
#endif /* AVUTIL_PARSEUTILS_H */ |
@ -1,289 +0,0 @@ |
||||
/*
|
||||
* pixel format descriptor |
||||
* Copyright (c) 2009 Michael Niedermayer <michaelni@gmx.at> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_PIXDESC_H |
||||
#define AVUTIL_PIXDESC_H |
||||
|
||||
#include <inttypes.h> |
||||
#include "pixfmt.h" |
||||
|
||||
typedef struct AVComponentDescriptor{ |
||||
uint16_t plane :2; ///< which of the 4 planes contains the component
|
||||
|
||||
/**
|
||||
* Number of elements between 2 horizontally consecutive pixels minus 1. |
||||
* Elements are bits for bitstream formats, bytes otherwise. |
||||
*/ |
||||
uint16_t step_minus1 :3; |
||||
|
||||
/**
|
||||
* Number of elements before the component of the first pixel plus 1. |
||||
* Elements are bits for bitstream formats, bytes otherwise. |
||||
*/ |
||||
uint16_t offset_plus1 :3; |
||||
uint16_t shift :3; ///< number of least significant bits that must be shifted away to get the value
|
||||
uint16_t depth_minus1 :4; ///< number of bits in the component minus 1
|
||||
}AVComponentDescriptor; |
||||
|
||||
/**
|
||||
* Descriptor that unambiguously describes how the bits of a pixel are |
||||
* stored in the up to 4 data planes of an image. It also stores the |
||||
* subsampling factors and number of components. |
||||
* |
||||
* @note This is separate of the colorspace (RGB, YCbCr, YPbPr, JPEG-style YUV |
||||
* and all the YUV variants) AVPixFmtDescriptor just stores how values |
||||
* are stored not what these values represent. |
||||
*/ |
||||
typedef struct AVPixFmtDescriptor{ |
||||
const char *name; |
||||
uint8_t nb_components; ///< The number of components each pixel has, (1-4)
|
||||
|
||||
/**
|
||||
* Amount to shift the luma width right to find the chroma width. |
||||
* For YV12 this is 1 for example. |
||||
* chroma_width = -((-luma_width) >> log2_chroma_w) |
||||
* The note above is needed to ensure rounding up. |
||||
* This value only refers to the chroma components. |
||||
*/ |
||||
uint8_t log2_chroma_w; ///< chroma_width = -((-luma_width )>>log2_chroma_w)
|
||||
|
||||
/**
|
||||
* Amount to shift the luma height right to find the chroma height. |
||||
* For YV12 this is 1 for example. |
||||
* chroma_height= -((-luma_height) >> log2_chroma_h) |
||||
* The note above is needed to ensure rounding up. |
||||
* This value only refers to the chroma components. |
||||
*/ |
||||
uint8_t log2_chroma_h; |
||||
uint8_t flags; |
||||
|
||||
/**
|
||||
* Parameters that describe how pixels are packed. |
||||
* If the format has 2 or 4 components, then alpha is last. |
||||
* If the format has 1 or 2 components, then luma is 0. |
||||
* If the format has 3 or 4 components, |
||||
* if the RGB flag is set then 0 is red, 1 is green and 2 is blue; |
||||
* otherwise 0 is luma, 1 is chroma-U and 2 is chroma-V. |
||||
*/ |
||||
AVComponentDescriptor comp[4]; |
||||
}AVPixFmtDescriptor; |
||||
|
||||
/**
|
||||
* Pixel format is big-endian. |
||||
*/ |
||||
#define AV_PIX_FMT_FLAG_BE (1 << 0) |
||||
/**
|
||||
* Pixel format has a palette in data[1], values are indexes in this palette. |
||||
*/ |
||||
#define AV_PIX_FMT_FLAG_PAL (1 << 1) |
||||
/**
|
||||
* All values of a component are bit-wise packed end to end. |
||||
*/ |
||||
#define AV_PIX_FMT_FLAG_BITSTREAM (1 << 2) |
||||
/**
|
||||
* Pixel format is an HW accelerated format. |
||||
*/ |
||||
#define AV_PIX_FMT_FLAG_HWACCEL (1 << 3) |
||||
/**
|
||||
* At least one pixel component is not in the first data plane. |
||||
*/ |
||||
#define AV_PIX_FMT_FLAG_PLANAR (1 << 4) |
||||
/**
|
||||
* The pixel format contains RGB-like data (as opposed to YUV/grayscale). |
||||
*/ |
||||
#define AV_PIX_FMT_FLAG_RGB (1 << 5) |
||||
/**
|
||||
* The pixel format is "pseudo-paletted". This means that FFmpeg treats it as |
||||
* paletted internally, but the palette is generated by the decoder and is not |
||||
* stored in the file. |
||||
*/ |
||||
#define AV_PIX_FMT_FLAG_PSEUDOPAL (1 << 6) |
||||
/**
|
||||
* The pixel format has an alpha channel. |
||||
*/ |
||||
#define AV_PIX_FMT_FLAG_ALPHA (1 << 7) |
||||
|
||||
#if FF_API_PIX_FMT |
||||
/**
|
||||
* @deprecate use the AV_PIX_FMT_FLAG_* flags |
||||
*/ |
||||
#define PIX_FMT_BE AV_PIX_FMT_FLAG_BE |
||||
#define PIX_FMT_PAL AV_PIX_FMT_FLAG_PAL |
||||
#define PIX_FMT_BITSTREAM AV_PIX_FMT_FLAG_BITSTREAM |
||||
#define PIX_FMT_HWACCEL AV_PIX_FMT_FLAG_HWACCEL |
||||
#define PIX_FMT_PLANAR AV_PIX_FMT_FLAG_PLANAR |
||||
#define PIX_FMT_RGB AV_PIX_FMT_FLAG_RGB |
||||
#define PIX_FMT_PSEUDOPAL AV_PIX_FMT_FLAG_PSEUDOPAL |
||||
#define PIX_FMT_ALPHA AV_PIX_FMT_FLAG_ALPHA |
||||
#endif |
||||
|
||||
#if FF_API_PIX_FMT_DESC |
||||
/**
|
||||
* The array of all the pixel format descriptors. |
||||
*/ |
||||
extern const AVPixFmtDescriptor av_pix_fmt_descriptors[]; |
||||
#endif |
||||
|
||||
/**
|
||||
* Read a line from an image, and write the values of the |
||||
* pixel format component c to dst. |
||||
* |
||||
* @param data the array containing the pointers to the planes of the image |
||||
* @param linesize the array containing the linesizes of the image |
||||
* @param desc the pixel format descriptor for the image |
||||
* @param x the horizontal coordinate of the first pixel to read |
||||
* @param y the vertical coordinate of the first pixel to read |
||||
* @param w the width of the line to read, that is the number of |
||||
* values to write to dst |
||||
* @param read_pal_component if not zero and the format is a paletted |
||||
* format writes the values corresponding to the palette |
||||
* component c in data[1] to dst, rather than the palette indexes in |
||||
* data[0]. The behavior is undefined if the format is not paletted. |
||||
*/ |
||||
void av_read_image_line(uint16_t *dst, const uint8_t *data[4], const int linesize[4], |
||||
const AVPixFmtDescriptor *desc, int x, int y, int c, int w, int read_pal_component); |
||||
|
||||
/**
|
||||
* Write the values from src to the pixel format component c of an |
||||
* image line. |
||||
* |
||||
* @param src array containing the values to write |
||||
* @param data the array containing the pointers to the planes of the |
||||
* image to write into. It is supposed to be zeroed. |
||||
* @param linesize the array containing the linesizes of the image |
||||
* @param desc the pixel format descriptor for the image |
||||
* @param x the horizontal coordinate of the first pixel to write |
||||
* @param y the vertical coordinate of the first pixel to write |
||||
* @param w the width of the line to write, that is the number of |
||||
* values to write to the image line |
||||
*/ |
||||
void av_write_image_line(const uint16_t *src, uint8_t *data[4], const int linesize[4], |
||||
const AVPixFmtDescriptor *desc, int x, int y, int c, int w); |
||||
|
||||
/**
|
||||
* Return the pixel format corresponding to name. |
||||
* |
||||
* If there is no pixel format with name name, then looks for a |
||||
* pixel format with the name corresponding to the native endian |
||||
* format of name. |
||||
* For example in a little-endian system, first looks for "gray16", |
||||
* then for "gray16le". |
||||
* |
||||
* Finally if no pixel format has been found, returns AV_PIX_FMT_NONE. |
||||
*/ |
||||
enum AVPixelFormat av_get_pix_fmt(const char *name); |
||||
|
||||
/**
|
||||
* Return the short name for a pixel format, NULL in case pix_fmt is |
||||
* unknown. |
||||
* |
||||
* @see av_get_pix_fmt(), av_get_pix_fmt_string() |
||||
*/ |
||||
const char *av_get_pix_fmt_name(enum AVPixelFormat pix_fmt); |
||||
|
||||
/**
|
||||
* Print in buf the string corresponding to the pixel format with |
||||
* number pix_fmt, or an header if pix_fmt is negative. |
||||
* |
||||
* @param buf the buffer where to write the string |
||||
* @param buf_size the size of buf |
||||
* @param pix_fmt the number of the pixel format to print the |
||||
* corresponding info string, or a negative value to print the |
||||
* corresponding header. |
||||
*/ |
||||
char *av_get_pix_fmt_string (char *buf, int buf_size, enum AVPixelFormat pix_fmt); |
||||
|
||||
/**
|
||||
* Return the number of bits per pixel used by the pixel format |
||||
* described by pixdesc. Note that this is not the same as the number |
||||
* of bits per sample. |
||||
* |
||||
* The returned number of bits refers to the number of bits actually |
||||
* used for storing the pixel information, that is padding bits are |
||||
* not counted. |
||||
*/ |
||||
int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc); |
||||
|
||||
/**
|
||||
* Return the number of bits per pixel for the pixel format |
||||
* described by pixdesc, including any padding or unused bits. |
||||
*/ |
||||
int av_get_padded_bits_per_pixel(const AVPixFmtDescriptor *pixdesc); |
||||
|
||||
/**
|
||||
* @return a pixel format descriptor for provided pixel format or NULL if |
||||
* this pixel format is unknown. |
||||
*/ |
||||
const AVPixFmtDescriptor *av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt); |
||||
|
||||
/**
|
||||
* Iterate over all pixel format descriptors known to libavutil. |
||||
* |
||||
* @param prev previous descriptor. NULL to get the first descriptor. |
||||
* |
||||
* @return next descriptor or NULL after the last descriptor |
||||
*/ |
||||
const AVPixFmtDescriptor *av_pix_fmt_desc_next(const AVPixFmtDescriptor *prev); |
||||
|
||||
/**
|
||||
* @return an AVPixelFormat id described by desc, or AV_PIX_FMT_NONE if desc |
||||
* is not a valid pointer to a pixel format descriptor. |
||||
*/ |
||||
enum AVPixelFormat av_pix_fmt_desc_get_id(const AVPixFmtDescriptor *desc); |
||||
|
||||
/**
|
||||
* Utility function to access log2_chroma_w log2_chroma_h from |
||||
* the pixel format AVPixFmtDescriptor. |
||||
* |
||||
* See avcodec_get_chroma_sub_sample() for a function that asserts a |
||||
* valid pixel format instead of returning an error code. |
||||
* Its recommanded that you use avcodec_get_chroma_sub_sample unless |
||||
* you do check the return code! |
||||
* |
||||
* @param[in] pix_fmt the pixel format |
||||
* @param[out] h_shift store log2_chroma_w |
||||
* @param[out] v_shift store log2_chroma_h |
||||
* |
||||
* @return 0 on success, AVERROR(ENOSYS) on invalid or unknown pixel format |
||||
*/ |
||||
int av_pix_fmt_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, |
||||
int *h_shift, int *v_shift); |
||||
|
||||
/**
|
||||
* @return number of planes in pix_fmt, a negative AVERROR if pix_fmt is not a |
||||
* valid pixel format. |
||||
*/ |
||||
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt); |
||||
|
||||
void ff_check_pixfmt_descriptors(void); |
||||
|
||||
/**
|
||||
* Utility function to swap the endianness of a pixel format. |
||||
* |
||||
* @param[in] pix_fmt the pixel format |
||||
* |
||||
* @return pixel format with swapped endianness if it exists, |
||||
* otherwise AV_PIX_FMT_NONE |
||||
*/ |
||||
enum AVPixelFormat av_pix_fmt_swap_endianness(enum AVPixelFormat pix_fmt); |
||||
|
||||
|
||||
#endif /* AVUTIL_PIXDESC_H */ |
@ -1,366 +0,0 @@ |
||||
/*
|
||||
* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_PIXFMT_H |
||||
#define AVUTIL_PIXFMT_H |
||||
|
||||
/**
|
||||
* @file |
||||
* pixel format definitions |
||||
* |
||||
*/ |
||||
|
||||
#include "libavutil/avconfig.h" |
||||
#include "libavutil/version.h" |
||||
|
||||
#define AVPALETTE_SIZE 1024 |
||||
#define AVPALETTE_COUNT 256 |
||||
|
||||
/**
|
||||
* Pixel format. |
||||
* |
||||
* @note |
||||
* PIX_FMT_RGB32 is handled in an endian-specific manner. An RGBA |
||||
* color is put together as: |
||||
* (A << 24) | (R << 16) | (G << 8) | B |
||||
* This is stored as BGRA on little-endian CPU architectures and ARGB on |
||||
* big-endian CPUs. |
||||
* |
||||
* @par |
||||
* When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized |
||||
* image data is stored in AVFrame.data[0]. The palette is transported in |
||||
* AVFrame.data[1], is 1024 bytes long (256 4-byte entries) and is |
||||
* formatted the same as in PIX_FMT_RGB32 described above (i.e., it is |
||||
* also endian-specific). Note also that the individual RGB palette |
||||
* components stored in AVFrame.data[1] should be in the range 0..255. |
||||
* This is important as many custom PAL8 video codecs that were designed |
||||
* to run on the IBM VGA graphics adapter use 6-bit palette components. |
||||
* |
||||
* @par |
||||
* For all the 8bit per pixel formats, an RGB32 palette is in data[1] like |
||||
* for pal8. This palette is filled in automatically by the function |
||||
* allocating the picture. |
||||
* |
||||
* @note |
||||
* Make sure that all newly added big-endian formats have pix_fmt & 1 == 1 |
||||
* and that all newly added little-endian formats have pix_fmt & 1 == 0. |
||||
* This allows simpler detection of big vs little-endian. |
||||
*/ |
||||
enum AVPixelFormat { |
||||
AV_PIX_FMT_NONE = -1, |
||||
AV_PIX_FMT_YUV420P, ///< planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
|
||||
AV_PIX_FMT_YUYV422, ///< packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
|
||||
AV_PIX_FMT_RGB24, ///< packed RGB 8:8:8, 24bpp, RGBRGB...
|
||||
AV_PIX_FMT_BGR24, ///< packed RGB 8:8:8, 24bpp, BGRBGR...
|
||||
AV_PIX_FMT_YUV422P, ///< planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
|
||||
AV_PIX_FMT_YUV444P, ///< planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
|
||||
AV_PIX_FMT_YUV410P, ///< planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
|
||||
AV_PIX_FMT_YUV411P, ///< planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
|
||||
AV_PIX_FMT_GRAY8, ///< Y , 8bpp
|
||||
AV_PIX_FMT_MONOWHITE, ///< Y , 1bpp, 0 is white, 1 is black, in each byte pixels are ordered from the msb to the lsb
|
||||
AV_PIX_FMT_MONOBLACK, ///< Y , 1bpp, 0 is black, 1 is white, in each byte pixels are ordered from the msb to the lsb
|
||||
AV_PIX_FMT_PAL8, ///< 8 bit with PIX_FMT_RGB32 palette
|
||||
AV_PIX_FMT_YUVJ420P, ///< planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV420P and setting color_range
|
||||
AV_PIX_FMT_YUVJ422P, ///< planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV422P and setting color_range
|
||||
AV_PIX_FMT_YUVJ444P, ///< planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV444P and setting color_range
|
||||
AV_PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing
|
||||
AV_PIX_FMT_XVMC_MPEG2_IDCT, |
||||
AV_PIX_FMT_UYVY422, ///< packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
|
||||
AV_PIX_FMT_UYYVYY411, ///< packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3
|
||||
AV_PIX_FMT_BGR8, ///< packed RGB 3:3:2, 8bpp, (msb)2B 3G 3R(lsb)
|
||||
AV_PIX_FMT_BGR4, ///< packed RGB 1:2:1 bitstream, 4bpp, (msb)1B 2G 1R(lsb), a byte contains two pixels, the first pixel in the byte is the one composed by the 4 msb bits
|
||||
AV_PIX_FMT_BGR4_BYTE, ///< packed RGB 1:2:1, 8bpp, (msb)1B 2G 1R(lsb)
|
||||
AV_PIX_FMT_RGB8, ///< packed RGB 3:3:2, 8bpp, (msb)2R 3G 3B(lsb)
|
||||
AV_PIX_FMT_RGB4, ///< packed RGB 1:2:1 bitstream, 4bpp, (msb)1R 2G 1B(lsb), a byte contains two pixels, the first pixel in the byte is the one composed by the 4 msb bits
|
||||
AV_PIX_FMT_RGB4_BYTE, ///< packed RGB 1:2:1, 8bpp, (msb)1R 2G 1B(lsb)
|
||||
AV_PIX_FMT_NV12, ///< planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (first byte U and the following byte V)
|
||||
AV_PIX_FMT_NV21, ///< as above, but U and V bytes are swapped
|
||||
|
||||
AV_PIX_FMT_ARGB, ///< packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
|
||||
AV_PIX_FMT_RGBA, ///< packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
|
||||
AV_PIX_FMT_ABGR, ///< packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
|
||||
AV_PIX_FMT_BGRA, ///< packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
|
||||
|
||||
AV_PIX_FMT_GRAY16BE, ///< Y , 16bpp, big-endian
|
||||
AV_PIX_FMT_GRAY16LE, ///< Y , 16bpp, little-endian
|
||||
AV_PIX_FMT_YUV440P, ///< planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
|
||||
AV_PIX_FMT_YUVJ440P, ///< planar YUV 4:4:0 full scale (JPEG), deprecated in favor of PIX_FMT_YUV440P and setting color_range
|
||||
AV_PIX_FMT_YUVA420P, ///< planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
|
||||
AV_PIX_FMT_VDPAU_H264,///< H.264 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
|
||||
AV_PIX_FMT_VDPAU_MPEG1,///< MPEG-1 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
|
||||
AV_PIX_FMT_VDPAU_MPEG2,///< MPEG-2 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
|
||||
AV_PIX_FMT_VDPAU_WMV3,///< WMV3 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
|
||||
AV_PIX_FMT_VDPAU_VC1, ///< VC-1 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
|
||||
AV_PIX_FMT_RGB48BE, ///< packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as big-endian
|
||||
AV_PIX_FMT_RGB48LE, ///< packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as little-endian
|
||||
|
||||
AV_PIX_FMT_RGB565BE, ///< packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), big-endian
|
||||
AV_PIX_FMT_RGB565LE, ///< packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), little-endian
|
||||
AV_PIX_FMT_RGB555BE, ///< packed RGB 5:5:5, 16bpp, (msb)1A 5R 5G 5B(lsb), big-endian, most significant bit to 0
|
||||
AV_PIX_FMT_RGB555LE, ///< packed RGB 5:5:5, 16bpp, (msb)1A 5R 5G 5B(lsb), little-endian, most significant bit to 0
|
||||
|
||||
AV_PIX_FMT_BGR565BE, ///< packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), big-endian
|
||||
AV_PIX_FMT_BGR565LE, ///< packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), little-endian
|
||||
AV_PIX_FMT_BGR555BE, ///< packed BGR 5:5:5, 16bpp, (msb)1A 5B 5G 5R(lsb), big-endian, most significant bit to 1
|
||||
AV_PIX_FMT_BGR555LE, ///< packed BGR 5:5:5, 16bpp, (msb)1A 5B 5G 5R(lsb), little-endian, most significant bit to 1
|
||||
|
||||
AV_PIX_FMT_VAAPI_MOCO, ///< HW acceleration through VA API at motion compensation entry-point, Picture.data[3] contains a vaapi_render_state struct which contains macroblocks as well as various fields extracted from headers
|
||||
AV_PIX_FMT_VAAPI_IDCT, ///< HW acceleration through VA API at IDCT entry-point, Picture.data[3] contains a vaapi_render_state struct which contains fields extracted from headers
|
||||
AV_PIX_FMT_VAAPI_VLD, ///< HW decoding through VA API, Picture.data[3] contains a vaapi_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
|
||||
|
||||
AV_PIX_FMT_YUV420P16LE, ///< planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
|
||||
AV_PIX_FMT_YUV420P16BE, ///< planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
|
||||
AV_PIX_FMT_YUV422P16LE, ///< planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
|
||||
AV_PIX_FMT_YUV422P16BE, ///< planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
|
||||
AV_PIX_FMT_YUV444P16LE, ///< planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
|
||||
AV_PIX_FMT_YUV444P16BE, ///< planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
|
||||
AV_PIX_FMT_VDPAU_MPEG4, ///< MPEG4 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
|
||||
AV_PIX_FMT_DXVA2_VLD, ///< HW decoding through DXVA2, Picture.data[3] contains a LPDIRECT3DSURFACE9 pointer
|
||||
|
||||
AV_PIX_FMT_RGB444LE, ///< packed RGB 4:4:4, 16bpp, (msb)4A 4R 4G 4B(lsb), little-endian, most significant bits to 0
|
||||
AV_PIX_FMT_RGB444BE, ///< packed RGB 4:4:4, 16bpp, (msb)4A 4R 4G 4B(lsb), big-endian, most significant bits to 0
|
||||
AV_PIX_FMT_BGR444LE, ///< packed BGR 4:4:4, 16bpp, (msb)4A 4B 4G 4R(lsb), little-endian, most significant bits to 1
|
||||
AV_PIX_FMT_BGR444BE, ///< packed BGR 4:4:4, 16bpp, (msb)4A 4B 4G 4R(lsb), big-endian, most significant bits to 1
|
||||
AV_PIX_FMT_GRAY8A, ///< 8bit gray, 8bit alpha
|
||||
AV_PIX_FMT_BGR48BE, ///< packed RGB 16:16:16, 48bpp, 16B, 16G, 16R, the 2-byte value for each R/G/B component is stored as big-endian
|
||||
AV_PIX_FMT_BGR48LE, ///< packed RGB 16:16:16, 48bpp, 16B, 16G, 16R, the 2-byte value for each R/G/B component is stored as little-endian
|
||||
|
||||
//the following 10 formats have the disadvantage of needing 1 format for each bit depth, thus
|
||||
//If you want to support multiple bit depths, then using AV_PIX_FMT_YUV420P16* with the bpp stored separately
|
||||
//is better
|
||||
AV_PIX_FMT_YUV420P9BE, ///< planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
|
||||
AV_PIX_FMT_YUV420P9LE, ///< planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
|
||||
AV_PIX_FMT_YUV420P10BE,///< planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
|
||||
AV_PIX_FMT_YUV420P10LE,///< planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
|
||||
AV_PIX_FMT_YUV422P10BE,///< planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
|
||||
AV_PIX_FMT_YUV422P10LE,///< planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
|
||||
AV_PIX_FMT_YUV444P9BE, ///< planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
|
||||
AV_PIX_FMT_YUV444P9LE, ///< planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
|
||||
AV_PIX_FMT_YUV444P10BE,///< planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
|
||||
AV_PIX_FMT_YUV444P10LE,///< planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
|
||||
AV_PIX_FMT_YUV422P9BE, ///< planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
|
||||
AV_PIX_FMT_YUV422P9LE, ///< planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
|
||||
AV_PIX_FMT_VDA_VLD, ///< hardware decoding through VDA
|
||||
|
||||
#ifdef AV_PIX_FMT_ABI_GIT_MASTER |
||||
AV_PIX_FMT_RGBA64BE, ///< packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is stored as big-endian
|
||||
AV_PIX_FMT_RGBA64LE, ///< packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is stored as little-endian
|
||||
AV_PIX_FMT_BGRA64BE, ///< packed RGBA 16:16:16:16, 64bpp, 16B, 16G, 16R, 16A, the 2-byte value for each R/G/B/A component is stored as big-endian
|
||||
AV_PIX_FMT_BGRA64LE, ///< packed RGBA 16:16:16:16, 64bpp, 16B, 16G, 16R, 16A, the 2-byte value for each R/G/B/A component is stored as little-endian
|
||||
#endif |
||||
AV_PIX_FMT_GBRP, ///< planar GBR 4:4:4 24bpp
|
||||
AV_PIX_FMT_GBRP9BE, ///< planar GBR 4:4:4 27bpp, big-endian
|
||||
AV_PIX_FMT_GBRP9LE, ///< planar GBR 4:4:4 27bpp, little-endian
|
||||
AV_PIX_FMT_GBRP10BE, ///< planar GBR 4:4:4 30bpp, big-endian
|
||||
AV_PIX_FMT_GBRP10LE, ///< planar GBR 4:4:4 30bpp, little-endian
|
||||
AV_PIX_FMT_GBRP16BE, ///< planar GBR 4:4:4 48bpp, big-endian
|
||||
AV_PIX_FMT_GBRP16LE, ///< planar GBR 4:4:4 48bpp, little-endian
|
||||
|
||||
/**
|
||||
* duplicated pixel formats for compatibility with libav. |
||||
* FFmpeg supports these formats since May 8 2012 and Jan 28 2012 (commits f9ca1ac7 and 143a5c55) |
||||
* Libav added them Oct 12 2012 with incompatible values (commit 6d5600e85) |
||||
*/ |
||||
AV_PIX_FMT_YUVA422P_LIBAV, ///< planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
|
||||
AV_PIX_FMT_YUVA444P_LIBAV, ///< planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
|
||||
|
||||
AV_PIX_FMT_YUVA420P9BE, ///< planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), big-endian
|
||||
AV_PIX_FMT_YUVA420P9LE, ///< planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), little-endian
|
||||
AV_PIX_FMT_YUVA422P9BE, ///< planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), big-endian
|
||||
AV_PIX_FMT_YUVA422P9LE, ///< planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), little-endian
|
||||
AV_PIX_FMT_YUVA444P9BE, ///< planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), big-endian
|
||||
AV_PIX_FMT_YUVA444P9LE, ///< planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), little-endian
|
||||
AV_PIX_FMT_YUVA420P10BE, ///< planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
|
||||
AV_PIX_FMT_YUVA420P10LE, ///< planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
|
||||
AV_PIX_FMT_YUVA422P10BE, ///< planar YUV 4:2:2 30bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
|
||||
AV_PIX_FMT_YUVA422P10LE, ///< planar YUV 4:2:2 30bpp, (1 Cr & Cb sample per 2x1 Y & A samples, little-endian)
|
||||
AV_PIX_FMT_YUVA444P10BE, ///< planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
|
||||
AV_PIX_FMT_YUVA444P10LE, ///< planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
|
||||
AV_PIX_FMT_YUVA420P16BE, ///< planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
|
||||
AV_PIX_FMT_YUVA420P16LE, ///< planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
|
||||
AV_PIX_FMT_YUVA422P16BE, ///< planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
|
||||
AV_PIX_FMT_YUVA422P16LE, ///< planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, little-endian)
|
||||
AV_PIX_FMT_YUVA444P16BE, ///< planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
|
||||
AV_PIX_FMT_YUVA444P16LE, ///< planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
|
||||
|
||||
AV_PIX_FMT_VDPAU, ///< HW acceleration through VDPAU, Picture.data[3] contains a VdpVideoSurface
|
||||
|
||||
AV_PIX_FMT_XYZ12LE, ///< packed XYZ 4:4:4, 36 bpp, (msb) 12X, 12Y, 12Z (lsb), the 2-byte value for each X/Y/Z is stored as little-endian, the 4 lower bits are set to 0
|
||||
AV_PIX_FMT_XYZ12BE, ///< packed XYZ 4:4:4, 36 bpp, (msb) 12X, 12Y, 12Z (lsb), the 2-byte value for each X/Y/Z is stored as big-endian, the 4 lower bits are set to 0
|
||||
|
||||
#ifndef AV_PIX_FMT_ABI_GIT_MASTER |
||||
AV_PIX_FMT_RGBA64BE=0x123, ///< packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is stored as big-endian
|
||||
AV_PIX_FMT_RGBA64LE, ///< packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is stored as little-endian
|
||||
AV_PIX_FMT_BGRA64BE, ///< packed RGBA 16:16:16:16, 64bpp, 16B, 16G, 16R, 16A, the 2-byte value for each R/G/B/A component is stored as big-endian
|
||||
AV_PIX_FMT_BGRA64LE, ///< packed RGBA 16:16:16:16, 64bpp, 16B, 16G, 16R, 16A, the 2-byte value for each R/G/B/A component is stored as little-endian
|
||||
#endif |
||||
AV_PIX_FMT_0RGB=0x123+4, ///< packed RGB 8:8:8, 32bpp, 0RGB0RGB...
|
||||
AV_PIX_FMT_RGB0, ///< packed RGB 8:8:8, 32bpp, RGB0RGB0...
|
||||
AV_PIX_FMT_0BGR, ///< packed BGR 8:8:8, 32bpp, 0BGR0BGR...
|
||||
AV_PIX_FMT_BGR0, ///< packed BGR 8:8:8, 32bpp, BGR0BGR0...
|
||||
AV_PIX_FMT_YUVA444P, ///< planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
|
||||
AV_PIX_FMT_YUVA422P, ///< planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
|
||||
|
||||
AV_PIX_FMT_YUV420P12BE, ///< planar YUV 4:2:0,18bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
|
||||
AV_PIX_FMT_YUV420P12LE, ///< planar YUV 4:2:0,18bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
|
||||
AV_PIX_FMT_YUV420P14BE, ///< planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
|
||||
AV_PIX_FMT_YUV420P14LE, ///< planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
|
||||
AV_PIX_FMT_YUV422P12BE, ///< planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
|
||||
AV_PIX_FMT_YUV422P12LE, ///< planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
|
||||
AV_PIX_FMT_YUV422P14BE, ///< planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
|
||||
AV_PIX_FMT_YUV422P14LE, ///< planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
|
||||
AV_PIX_FMT_YUV444P12BE, ///< planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
|
||||
AV_PIX_FMT_YUV444P12LE, ///< planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
|
||||
AV_PIX_FMT_YUV444P14BE, ///< planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
|
||||
AV_PIX_FMT_YUV444P14LE, ///< planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
|
||||
AV_PIX_FMT_GBRP12BE, ///< planar GBR 4:4:4 36bpp, big-endian
|
||||
AV_PIX_FMT_GBRP12LE, ///< planar GBR 4:4:4 36bpp, little-endian
|
||||
AV_PIX_FMT_GBRP14BE, ///< planar GBR 4:4:4 42bpp, big-endian
|
||||
AV_PIX_FMT_GBRP14LE, ///< planar GBR 4:4:4 42bpp, little-endian
|
||||
AV_PIX_FMT_GBRAP, ///< planar GBRA 4:4:4:4 32bpp
|
||||
AV_PIX_FMT_GBRAP16BE, ///< planar GBRA 4:4:4:4 64bpp, big-endian
|
||||
AV_PIX_FMT_GBRAP16LE, ///< planar GBRA 4:4:4:4 64bpp, little-endian
|
||||
AV_PIX_FMT_YUVJ411P, ///< planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor of PIX_FMT_YUV411P and setting color_range
|
||||
AV_PIX_FMT_NB, ///< number of pixel formats, DO NOT USE THIS if you want to link with shared libav* because the number of formats might differ between versions
|
||||
|
||||
#if FF_API_PIX_FMT |
||||
#include "old_pix_fmts.h" |
||||
#endif |
||||
}; |
||||
|
||||
#if AV_HAVE_INCOMPATIBLE_LIBAV_ABI |
||||
#define AV_PIX_FMT_YUVA422P AV_PIX_FMT_YUVA422P_LIBAV |
||||
#define AV_PIX_FMT_YUVA444P AV_PIX_FMT_YUVA444P_LIBAV |
||||
#endif |
||||
|
||||
|
||||
#define AV_PIX_FMT_Y400A AV_PIX_FMT_GRAY8A |
||||
#define AV_PIX_FMT_GBR24P AV_PIX_FMT_GBRP |
||||
|
||||
#if AV_HAVE_BIGENDIAN |
||||
# define AV_PIX_FMT_NE(be, le) AV_PIX_FMT_##be |
||||
#else |
||||
# define AV_PIX_FMT_NE(be, le) AV_PIX_FMT_##le |
||||
#endif |
||||
|
||||
#define AV_PIX_FMT_RGB32 AV_PIX_FMT_NE(ARGB, BGRA) |
||||
#define AV_PIX_FMT_RGB32_1 AV_PIX_FMT_NE(RGBA, ABGR) |
||||
#define AV_PIX_FMT_BGR32 AV_PIX_FMT_NE(ABGR, RGBA) |
||||
#define AV_PIX_FMT_BGR32_1 AV_PIX_FMT_NE(BGRA, ARGB) |
||||
#define AV_PIX_FMT_0RGB32 AV_PIX_FMT_NE(0RGB, BGR0) |
||||
#define AV_PIX_FMT_0BGR32 AV_PIX_FMT_NE(0BGR, RGB0) |
||||
|
||||
#define AV_PIX_FMT_GRAY16 AV_PIX_FMT_NE(GRAY16BE, GRAY16LE) |
||||
#define AV_PIX_FMT_RGB48 AV_PIX_FMT_NE(RGB48BE, RGB48LE) |
||||
#define AV_PIX_FMT_RGB565 AV_PIX_FMT_NE(RGB565BE, RGB565LE) |
||||
#define AV_PIX_FMT_RGB555 AV_PIX_FMT_NE(RGB555BE, RGB555LE) |
||||
#define AV_PIX_FMT_RGB444 AV_PIX_FMT_NE(RGB444BE, RGB444LE) |
||||
#define AV_PIX_FMT_BGR48 AV_PIX_FMT_NE(BGR48BE, BGR48LE) |
||||
#define AV_PIX_FMT_BGR565 AV_PIX_FMT_NE(BGR565BE, BGR565LE) |
||||
#define AV_PIX_FMT_BGR555 AV_PIX_FMT_NE(BGR555BE, BGR555LE) |
||||
#define AV_PIX_FMT_BGR444 AV_PIX_FMT_NE(BGR444BE, BGR444LE) |
||||
|
||||
#define AV_PIX_FMT_YUV420P9 AV_PIX_FMT_NE(YUV420P9BE , YUV420P9LE) |
||||
#define AV_PIX_FMT_YUV422P9 AV_PIX_FMT_NE(YUV422P9BE , YUV422P9LE) |
||||
#define AV_PIX_FMT_YUV444P9 AV_PIX_FMT_NE(YUV444P9BE , YUV444P9LE) |
||||
#define AV_PIX_FMT_YUV420P10 AV_PIX_FMT_NE(YUV420P10BE, YUV420P10LE) |
||||
#define AV_PIX_FMT_YUV422P10 AV_PIX_FMT_NE(YUV422P10BE, YUV422P10LE) |
||||
#define AV_PIX_FMT_YUV444P10 AV_PIX_FMT_NE(YUV444P10BE, YUV444P10LE) |
||||
#define AV_PIX_FMT_YUV420P12 AV_PIX_FMT_NE(YUV420P12BE, YUV420P12LE) |
||||
#define AV_PIX_FMT_YUV422P12 AV_PIX_FMT_NE(YUV422P12BE, YUV422P12LE) |
||||
#define AV_PIX_FMT_YUV444P12 AV_PIX_FMT_NE(YUV444P12BE, YUV444P12LE) |
||||
#define AV_PIX_FMT_YUV420P14 AV_PIX_FMT_NE(YUV420P14BE, YUV420P14LE) |
||||
#define AV_PIX_FMT_YUV422P14 AV_PIX_FMT_NE(YUV422P14BE, YUV422P14LE) |
||||
#define AV_PIX_FMT_YUV444P14 AV_PIX_FMT_NE(YUV444P14BE, YUV444P14LE) |
||||
#define AV_PIX_FMT_YUV420P16 AV_PIX_FMT_NE(YUV420P16BE, YUV420P16LE) |
||||
#define AV_PIX_FMT_YUV422P16 AV_PIX_FMT_NE(YUV422P16BE, YUV422P16LE) |
||||
#define AV_PIX_FMT_YUV444P16 AV_PIX_FMT_NE(YUV444P16BE, YUV444P16LE) |
||||
|
||||
#define AV_PIX_FMT_RGBA64 AV_PIX_FMT_NE(RGBA64BE, RGBA64LE) |
||||
#define AV_PIX_FMT_BGRA64 AV_PIX_FMT_NE(BGRA64BE, BGRA64LE) |
||||
#define AV_PIX_FMT_GBRP9 AV_PIX_FMT_NE(GBRP9BE , GBRP9LE) |
||||
#define AV_PIX_FMT_GBRP10 AV_PIX_FMT_NE(GBRP10BE, GBRP10LE) |
||||
#define AV_PIX_FMT_GBRP12 AV_PIX_FMT_NE(GBRP12BE, GBRP12LE) |
||||
#define AV_PIX_FMT_GBRP14 AV_PIX_FMT_NE(GBRP14BE, GBRP14LE) |
||||
#define AV_PIX_FMT_GBRP16 AV_PIX_FMT_NE(GBRP16BE, GBRP16LE) |
||||
|
||||
#define AV_PIX_FMT_YUVA420P9 AV_PIX_FMT_NE(YUVA420P9BE , YUVA420P9LE) |
||||
#define AV_PIX_FMT_YUVA422P9 AV_PIX_FMT_NE(YUVA422P9BE , YUVA422P9LE) |
||||
#define AV_PIX_FMT_YUVA444P9 AV_PIX_FMT_NE(YUVA444P9BE , YUVA444P9LE) |
||||
#define AV_PIX_FMT_YUVA420P10 AV_PIX_FMT_NE(YUVA420P10BE, YUVA420P10LE) |
||||
#define AV_PIX_FMT_YUVA422P10 AV_PIX_FMT_NE(YUVA422P10BE, YUVA422P10LE) |
||||
#define AV_PIX_FMT_YUVA444P10 AV_PIX_FMT_NE(YUVA444P10BE, YUVA444P10LE) |
||||
#define AV_PIX_FMT_YUVA420P16 AV_PIX_FMT_NE(YUVA420P16BE, YUVA420P16LE) |
||||
#define AV_PIX_FMT_YUVA422P16 AV_PIX_FMT_NE(YUVA422P16BE, YUVA422P16LE) |
||||
#define AV_PIX_FMT_YUVA444P16 AV_PIX_FMT_NE(YUVA444P16BE, YUVA444P16LE) |
||||
|
||||
#define AV_PIX_FMT_XYZ12 AV_PIX_FMT_NE(XYZ12BE, XYZ12LE) |
||||
|
||||
#if FF_API_PIX_FMT |
||||
#define PixelFormat AVPixelFormat |
||||
|
||||
#define PIX_FMT_Y400A AV_PIX_FMT_Y400A |
||||
#define PIX_FMT_GBR24P AV_PIX_FMT_GBR24P |
||||
|
||||
#define PIX_FMT_NE(be, le) AV_PIX_FMT_NE(be, le) |
||||
|
||||
#define PIX_FMT_RGB32 AV_PIX_FMT_RGB32 |
||||
#define PIX_FMT_RGB32_1 AV_PIX_FMT_RGB32_1 |
||||
#define PIX_FMT_BGR32 AV_PIX_FMT_BGR32 |
||||
#define PIX_FMT_BGR32_1 AV_PIX_FMT_BGR32_1 |
||||
#define PIX_FMT_0RGB32 AV_PIX_FMT_0RGB32 |
||||
#define PIX_FMT_0BGR32 AV_PIX_FMT_0BGR32 |
||||
|
||||
#define PIX_FMT_GRAY16 AV_PIX_FMT_GRAY16 |
||||
#define PIX_FMT_RGB48 AV_PIX_FMT_RGB48 |
||||
#define PIX_FMT_RGB565 AV_PIX_FMT_RGB565 |
||||
#define PIX_FMT_RGB555 AV_PIX_FMT_RGB555 |
||||
#define PIX_FMT_RGB444 AV_PIX_FMT_RGB444 |
||||
#define PIX_FMT_BGR48 AV_PIX_FMT_BGR48 |
||||
#define PIX_FMT_BGR565 AV_PIX_FMT_BGR565 |
||||
#define PIX_FMT_BGR555 AV_PIX_FMT_BGR555 |
||||
#define PIX_FMT_BGR444 AV_PIX_FMT_BGR444 |
||||
|
||||
#define PIX_FMT_YUV420P9 AV_PIX_FMT_YUV420P9 |
||||
#define PIX_FMT_YUV422P9 AV_PIX_FMT_YUV422P9 |
||||
#define PIX_FMT_YUV444P9 AV_PIX_FMT_YUV444P9 |
||||
#define PIX_FMT_YUV420P10 AV_PIX_FMT_YUV420P10 |
||||
#define PIX_FMT_YUV422P10 AV_PIX_FMT_YUV422P10 |
||||
#define PIX_FMT_YUV444P10 AV_PIX_FMT_YUV444P10 |
||||
#define PIX_FMT_YUV420P12 AV_PIX_FMT_YUV420P12 |
||||
#define PIX_FMT_YUV422P12 AV_PIX_FMT_YUV422P12 |
||||
#define PIX_FMT_YUV444P12 AV_PIX_FMT_YUV444P12 |
||||
#define PIX_FMT_YUV420P14 AV_PIX_FMT_YUV420P14 |
||||
#define PIX_FMT_YUV422P14 AV_PIX_FMT_YUV422P14 |
||||
#define PIX_FMT_YUV444P14 AV_PIX_FMT_YUV444P14 |
||||
#define PIX_FMT_YUV420P16 AV_PIX_FMT_YUV420P16 |
||||
#define PIX_FMT_YUV422P16 AV_PIX_FMT_YUV422P16 |
||||
#define PIX_FMT_YUV444P16 AV_PIX_FMT_YUV444P16 |
||||
|
||||
#define PIX_FMT_RGBA64 AV_PIX_FMT_RGBA64 |
||||
#define PIX_FMT_BGRA64 AV_PIX_FMT_BGRA64 |
||||
#define PIX_FMT_GBRP9 AV_PIX_FMT_GBRP9 |
||||
#define PIX_FMT_GBRP10 AV_PIX_FMT_GBRP10 |
||||
#define PIX_FMT_GBRP12 AV_PIX_FMT_GBRP12 |
||||
#define PIX_FMT_GBRP14 AV_PIX_FMT_GBRP14 |
||||
#define PIX_FMT_GBRP16 AV_PIX_FMT_GBRP16 |
||||
#endif |
||||
|
||||
#endif /* AVUTIL_PIXFMT_H */ |
@ -1,43 +0,0 @@ |
||||
/*
|
||||
* Copyright (c) 2009 Baptiste Coudurier <baptiste.coudurier@gmail.com> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_RANDOM_SEED_H |
||||
#define AVUTIL_RANDOM_SEED_H |
||||
|
||||
#include <stdint.h> |
||||
/**
|
||||
* @addtogroup lavu_crypto |
||||
* @{ |
||||
*/ |
||||
|
||||
/**
|
||||
* Get a seed to use in conjunction with random functions. |
||||
* This function tries to provide a good seed at a best effort bases. |
||||
* Its possible to call this function multiple times if more bits are needed. |
||||
* It can be quite slow, which is why it should only be used as seed for a faster |
||||
* PRNG. The quality of the seed depends on the platform. |
||||
*/ |
||||
uint32_t av_get_random_seed(void); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_RANDOM_SEED_H */ |
@ -1,155 +0,0 @@ |
||||
/*
|
||||
* rational numbers |
||||
* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
/**
|
||||
* @file |
||||
* rational numbers |
||||
* @author Michael Niedermayer <michaelni@gmx.at> |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_RATIONAL_H |
||||
#define AVUTIL_RATIONAL_H |
||||
|
||||
#include <stdint.h> |
||||
#include <limits.h> |
||||
#include "attributes.h" |
||||
|
||||
/**
|
||||
* @addtogroup lavu_math |
||||
* @{ |
||||
*/ |
||||
|
||||
/**
|
||||
* rational number numerator/denominator |
||||
*/ |
||||
typedef struct AVRational{ |
||||
int num; ///< numerator
|
||||
int den; ///< denominator
|
||||
} AVRational; |
||||
|
||||
/**
|
||||
* Compare two rationals. |
||||
* @param a first rational |
||||
* @param b second rational |
||||
* @return 0 if a==b, 1 if a>b, -1 if a<b, and INT_MIN if one of the |
||||
* values is of the form 0/0 |
||||
*/ |
||||
static inline int av_cmp_q(AVRational a, AVRational b){ |
||||
const int64_t tmp= a.num * (int64_t)b.den - b.num * (int64_t)a.den; |
||||
|
||||
if(tmp) return ((tmp ^ a.den ^ b.den)>>63)|1; |
||||
else if(b.den && a.den) return 0; |
||||
else if(a.num && b.num) return (a.num>>31) - (b.num>>31); |
||||
else return INT_MIN; |
||||
} |
||||
|
||||
/**
|
||||
* Convert rational to double. |
||||
* @param a rational to convert |
||||
* @return (double) a |
||||
*/ |
||||
static inline double av_q2d(AVRational a){ |
||||
return a.num / (double) a.den; |
||||
} |
||||
|
||||
/**
|
||||
* Reduce a fraction. |
||||
* This is useful for framerate calculations. |
||||
* @param dst_num destination numerator |
||||
* @param dst_den destination denominator |
||||
* @param num source numerator |
||||
* @param den source denominator |
||||
* @param max the maximum allowed for dst_num & dst_den |
||||
* @return 1 if exact, 0 otherwise |
||||
*/ |
||||
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max); |
||||
|
||||
/**
|
||||
* Multiply two rationals. |
||||
* @param b first rational |
||||
* @param c second rational |
||||
* @return b*c |
||||
*/ |
||||
AVRational av_mul_q(AVRational b, AVRational c) av_const; |
||||
|
||||
/**
|
||||
* Divide one rational by another. |
||||
* @param b first rational |
||||
* @param c second rational |
||||
* @return b/c |
||||
*/ |
||||
AVRational av_div_q(AVRational b, AVRational c) av_const; |
||||
|
||||
/**
|
||||
* Add two rationals. |
||||
* @param b first rational |
||||
* @param c second rational |
||||
* @return b+c |
||||
*/ |
||||
AVRational av_add_q(AVRational b, AVRational c) av_const; |
||||
|
||||
/**
|
||||
* Subtract one rational from another. |
||||
* @param b first rational |
||||
* @param c second rational |
||||
* @return b-c |
||||
*/ |
||||
AVRational av_sub_q(AVRational b, AVRational c) av_const; |
||||
|
||||
/**
|
||||
* Invert a rational. |
||||
* @param q value |
||||
* @return 1 / q |
||||
*/ |
||||
static av_always_inline AVRational av_inv_q(AVRational q) |
||||
{ |
||||
AVRational r = { q.den, q.num }; |
||||
return r; |
||||
} |
||||
|
||||
/**
|
||||
* Convert a double precision floating point number to a rational. |
||||
* inf is expressed as {1,0} or {-1,0} depending on the sign. |
||||
* |
||||
* @param d double to convert |
||||
* @param max the maximum allowed numerator and denominator |
||||
* @return (AVRational) d |
||||
*/ |
||||
AVRational av_d2q(double d, int max) av_const; |
||||
|
||||
/**
|
||||
* @return 1 if q1 is nearer to q than q2, -1 if q2 is nearer |
||||
* than q1, 0 if they have the same distance. |
||||
*/ |
||||
int av_nearer_q(AVRational q, AVRational q1, AVRational q2); |
||||
|
||||
/**
|
||||
* Find the nearest value in q_list to q. |
||||
* @param q_list an array of rationals terminated by {0, 0} |
||||
* @return the index of the nearest value found in the array |
||||
*/ |
||||
int av_find_nearest_q_idx(AVRational q, const AVRational* q_list); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_RATIONAL_H */ |
@ -1,75 +0,0 @@ |
||||
/*
|
||||
* Copyright (C) 2007 Michael Niedermayer <michaelni@gmx.at> |
||||
* Copyright (C) 2013 James Almer <jamrial@gmail.com> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_RIPEMD_H |
||||
#define AVUTIL_RIPEMD_H |
||||
|
||||
#include <stdint.h> |
||||
|
||||
#include "attributes.h" |
||||
#include "version.h" |
||||
|
||||
/**
|
||||
* @defgroup lavu_ripemd RIPEMD |
||||
* @ingroup lavu_crypto |
||||
* @{ |
||||
*/ |
||||
|
||||
extern const int av_ripemd_size; |
||||
|
||||
struct AVRIPEMD; |
||||
|
||||
/**
|
||||
* Allocate an AVRIPEMD context. |
||||
*/ |
||||
struct AVRIPEMD *av_ripemd_alloc(void); |
||||
|
||||
/**
|
||||
* Initialize RIPEMD hashing. |
||||
* |
||||
* @param context pointer to the function context (of size av_ripemd_size) |
||||
* @param bits number of bits in digest (128, 160, 256 or 320 bits) |
||||
* @return zero if initialization succeeded, -1 otherwise |
||||
*/ |
||||
int av_ripemd_init(struct AVRIPEMD* context, int bits); |
||||
|
||||
/**
|
||||
* Update hash value. |
||||
* |
||||
* @param context hash function context |
||||
* @param data input data to update hash with |
||||
* @param len input data length |
||||
*/ |
||||
void av_ripemd_update(struct AVRIPEMD* context, const uint8_t* data, unsigned int len); |
||||
|
||||
/**
|
||||
* Finish hashing and output digest value. |
||||
* |
||||
* @param context hash function context |
||||
* @param digest buffer where output digest value is stored |
||||
*/ |
||||
void av_ripemd_final(struct AVRIPEMD* context, uint8_t *digest); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_RIPEMD_H */ |
@ -1,256 +0,0 @@ |
||||
/*
|
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_SAMPLEFMT_H |
||||
#define AVUTIL_SAMPLEFMT_H |
||||
|
||||
#include <stdint.h> |
||||
|
||||
#include "avutil.h" |
||||
#include "attributes.h" |
||||
|
||||
/**
|
||||
* Audio Sample Formats |
||||
* |
||||
* @par |
||||
* The data described by the sample format is always in native-endian order. |
||||
* Sample values can be expressed by native C types, hence the lack of a signed |
||||
* 24-bit sample format even though it is a common raw audio data format. |
||||
* |
||||
* @par |
||||
* The floating-point formats are based on full volume being in the range |
||||
* [-1.0, 1.0]. Any values outside this range are beyond full volume level. |
||||
* |
||||
* @par |
||||
* The data layout as used in av_samples_fill_arrays() and elsewhere in FFmpeg |
||||
* (such as AVFrame in libavcodec) is as follows: |
||||
* |
||||
* For planar sample formats, each audio channel is in a separate data plane, |
||||
* and linesize is the buffer size, in bytes, for a single plane. All data |
||||
* planes must be the same size. For packed sample formats, only the first data |
||||
* plane is used, and samples for each channel are interleaved. In this case, |
||||
* linesize is the buffer size, in bytes, for the 1 plane. |
||||
*/ |
||||
enum AVSampleFormat { |
||||
AV_SAMPLE_FMT_NONE = -1, |
||||
AV_SAMPLE_FMT_U8, ///< unsigned 8 bits
|
||||
AV_SAMPLE_FMT_S16, ///< signed 16 bits
|
||||
AV_SAMPLE_FMT_S32, ///< signed 32 bits
|
||||
AV_SAMPLE_FMT_FLT, ///< float
|
||||
AV_SAMPLE_FMT_DBL, ///< double
|
||||
|
||||
AV_SAMPLE_FMT_U8P, ///< unsigned 8 bits, planar
|
||||
AV_SAMPLE_FMT_S16P, ///< signed 16 bits, planar
|
||||
AV_SAMPLE_FMT_S32P, ///< signed 32 bits, planar
|
||||
AV_SAMPLE_FMT_FLTP, ///< float, planar
|
||||
AV_SAMPLE_FMT_DBLP, ///< double, planar
|
||||
|
||||
AV_SAMPLE_FMT_NB ///< Number of sample formats. DO NOT USE if linking dynamically
|
||||
}; |
||||
|
||||
/**
|
||||
* Return the name of sample_fmt, or NULL if sample_fmt is not |
||||
* recognized. |
||||
*/ |
||||
const char *av_get_sample_fmt_name(enum AVSampleFormat sample_fmt); |
||||
|
||||
/**
|
||||
* Return a sample format corresponding to name, or AV_SAMPLE_FMT_NONE |
||||
* on error. |
||||
*/ |
||||
enum AVSampleFormat av_get_sample_fmt(const char *name); |
||||
|
||||
/**
|
||||
* Return the planar<->packed alternative form of the given sample format, or |
||||
* AV_SAMPLE_FMT_NONE on error. If the passed sample_fmt is already in the |
||||
* requested planar/packed format, the format returned is the same as the |
||||
* input. |
||||
*/ |
||||
enum AVSampleFormat av_get_alt_sample_fmt(enum AVSampleFormat sample_fmt, int planar); |
||||
|
||||
/**
|
||||
* Get the packed alternative form of the given sample format. |
||||
* |
||||
* If the passed sample_fmt is already in packed format, the format returned is |
||||
* the same as the input. |
||||
* |
||||
* @return the packed alternative form of the given sample format or |
||||
AV_SAMPLE_FMT_NONE on error. |
||||
*/ |
||||
enum AVSampleFormat av_get_packed_sample_fmt(enum AVSampleFormat sample_fmt); |
||||
|
||||
/**
|
||||
* Get the planar alternative form of the given sample format. |
||||
* |
||||
* If the passed sample_fmt is already in planar format, the format returned is |
||||
* the same as the input. |
||||
* |
||||
* @return the planar alternative form of the given sample format or |
||||
AV_SAMPLE_FMT_NONE on error. |
||||
*/ |
||||
enum AVSampleFormat av_get_planar_sample_fmt(enum AVSampleFormat sample_fmt); |
||||
|
||||
/**
|
||||
* Generate a string corresponding to the sample format with |
||||
* sample_fmt, or a header if sample_fmt is negative. |
||||
* |
||||
* @param buf the buffer where to write the string |
||||
* @param buf_size the size of buf |
||||
* @param sample_fmt the number of the sample format to print the |
||||
* corresponding info string, or a negative value to print the |
||||
* corresponding header. |
||||
* @return the pointer to the filled buffer or NULL if sample_fmt is |
||||
* unknown or in case of other errors |
||||
*/ |
||||
char *av_get_sample_fmt_string(char *buf, int buf_size, enum AVSampleFormat sample_fmt); |
||||
|
||||
#if FF_API_GET_BITS_PER_SAMPLE_FMT |
||||
/**
|
||||
* @deprecated Use av_get_bytes_per_sample() instead. |
||||
*/ |
||||
attribute_deprecated |
||||
int av_get_bits_per_sample_fmt(enum AVSampleFormat sample_fmt); |
||||
#endif |
||||
|
||||
/**
|
||||
* Return number of bytes per sample. |
||||
* |
||||
* @param sample_fmt the sample format |
||||
* @return number of bytes per sample or zero if unknown for the given |
||||
* sample format |
||||
*/ |
||||
int av_get_bytes_per_sample(enum AVSampleFormat sample_fmt); |
||||
|
||||
/**
|
||||
* Check if the sample format is planar. |
||||
* |
||||
* @param sample_fmt the sample format to inspect |
||||
* @return 1 if the sample format is planar, 0 if it is interleaved |
||||
*/ |
||||
int av_sample_fmt_is_planar(enum AVSampleFormat sample_fmt); |
||||
|
||||
/**
|
||||
* Get the required buffer size for the given audio parameters. |
||||
* |
||||
* @param[out] linesize calculated linesize, may be NULL |
||||
* @param nb_channels the number of channels |
||||
* @param nb_samples the number of samples in a single channel |
||||
* @param sample_fmt the sample format |
||||
* @param align buffer size alignment (0 = default, 1 = no alignment) |
||||
* @return required buffer size, or negative error code on failure |
||||
*/ |
||||
int av_samples_get_buffer_size(int *linesize, int nb_channels, int nb_samples, |
||||
enum AVSampleFormat sample_fmt, int align); |
||||
|
||||
/**
|
||||
* Fill plane data pointers and linesize for samples with sample |
||||
* format sample_fmt. |
||||
* |
||||
* The audio_data array is filled with the pointers to the samples data planes: |
||||
* for planar, set the start point of each channel's data within the buffer, |
||||
* for packed, set the start point of the entire buffer only. |
||||
* |
||||
* The value pointed to by linesize is set to the aligned size of each |
||||
* channel's data buffer for planar layout, or to the aligned size of the |
||||
* buffer for all channels for packed layout. |
||||
* |
||||
* The buffer in buf must be big enough to contain all the samples |
||||
* (use av_samples_get_buffer_size() to compute its minimum size), |
||||
* otherwise the audio_data pointers will point to invalid data. |
||||
* |
||||
* @see enum AVSampleFormat |
||||
* The documentation for AVSampleFormat describes the data layout. |
||||
* |
||||
* @param[out] audio_data array to be filled with the pointer for each channel |
||||
* @param[out] linesize calculated linesize, may be NULL |
||||
* @param buf the pointer to a buffer containing the samples |
||||
* @param nb_channels the number of channels |
||||
* @param nb_samples the number of samples in a single channel |
||||
* @param sample_fmt the sample format |
||||
* @param align buffer size alignment (0 = default, 1 = no alignment) |
||||
* @return >=0 on success or a negative error code on failure |
||||
* @todo return minimum size in bytes required for the buffer in case |
||||
* of success at the next bump |
||||
*/ |
||||
int av_samples_fill_arrays(uint8_t **audio_data, int *linesize, |
||||
const uint8_t *buf, |
||||
int nb_channels, int nb_samples, |
||||
enum AVSampleFormat sample_fmt, int align); |
||||
|
||||
/**
|
||||
* Allocate a samples buffer for nb_samples samples, and fill data pointers and |
||||
* linesize accordingly. |
||||
* The allocated samples buffer can be freed by using av_freep(&audio_data[0]) |
||||
* Allocated data will be initialized to silence. |
||||
* |
||||
* @see enum AVSampleFormat |
||||
* The documentation for AVSampleFormat describes the data layout. |
||||
* |
||||
* @param[out] audio_data array to be filled with the pointer for each channel |
||||
* @param[out] linesize aligned size for audio buffer(s), may be NULL |
||||
* @param nb_channels number of audio channels |
||||
* @param nb_samples number of samples per channel |
||||
* @param align buffer size alignment (0 = default, 1 = no alignment) |
||||
* @return >=0 on success or a negative error code on failure |
||||
* @todo return the size of the allocated buffer in case of success at the next bump |
||||
* @see av_samples_fill_arrays() |
||||
* @see av_samples_alloc_array_and_samples() |
||||
*/ |
||||
int av_samples_alloc(uint8_t **audio_data, int *linesize, int nb_channels, |
||||
int nb_samples, enum AVSampleFormat sample_fmt, int align); |
||||
|
||||
/**
|
||||
* Allocate a data pointers array, samples buffer for nb_samples |
||||
* samples, and fill data pointers and linesize accordingly. |
||||
* |
||||
* This is the same as av_samples_alloc(), but also allocates the data |
||||
* pointers array. |
||||
* |
||||
* @see av_samples_alloc() |
||||
*/ |
||||
int av_samples_alloc_array_and_samples(uint8_t ***audio_data, int *linesize, int nb_channels, |
||||
int nb_samples, enum AVSampleFormat sample_fmt, int align); |
||||
|
||||
/**
|
||||
* Copy samples from src to dst. |
||||
* |
||||
* @param dst destination array of pointers to data planes |
||||
* @param src source array of pointers to data planes |
||||
* @param dst_offset offset in samples at which the data will be written to dst |
||||
* @param src_offset offset in samples at which the data will be read from src |
||||
* @param nb_samples number of samples to be copied |
||||
* @param nb_channels number of audio channels |
||||
* @param sample_fmt audio sample format |
||||
*/ |
||||
int av_samples_copy(uint8_t **dst, uint8_t * const *src, int dst_offset, |
||||
int src_offset, int nb_samples, int nb_channels, |
||||
enum AVSampleFormat sample_fmt); |
||||
|
||||
/**
|
||||
* Fill an audio buffer with silence. |
||||
* |
||||
* @param audio_data array of pointers to data planes |
||||
* @param offset offset in samples at which to start filling |
||||
* @param nb_samples number of samples to fill |
||||
* @param nb_channels number of audio channels |
||||
* @param sample_fmt audio sample format |
||||
*/ |
||||
int av_samples_set_silence(uint8_t **audio_data, int offset, int nb_samples, |
||||
int nb_channels, enum AVSampleFormat sample_fmt); |
||||
|
||||
#endif /* AVUTIL_SAMPLEFMT_H */ |
@ -1,74 +0,0 @@ |
||||
/*
|
||||
* Copyright (C) 2007 Michael Niedermayer <michaelni@gmx.at> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_SHA_H |
||||
#define AVUTIL_SHA_H |
||||
|
||||
#include <stdint.h> |
||||
|
||||
#include "attributes.h" |
||||
#include "version.h" |
||||
|
||||
/**
|
||||
* @defgroup lavu_sha SHA |
||||
* @ingroup lavu_crypto |
||||
* @{ |
||||
*/ |
||||
|
||||
extern const int av_sha_size; |
||||
|
||||
struct AVSHA; |
||||
|
||||
/**
|
||||
* Allocate an AVSHA context. |
||||
*/ |
||||
struct AVSHA *av_sha_alloc(void); |
||||
|
||||
/**
|
||||
* Initialize SHA-1 or SHA-2 hashing. |
||||
* |
||||
* @param context pointer to the function context (of size av_sha_size) |
||||
* @param bits number of bits in digest (SHA-1 - 160 bits, SHA-2 224 or 256 bits) |
||||
* @return zero if initialization succeeded, -1 otherwise |
||||
*/ |
||||
int av_sha_init(struct AVSHA* context, int bits); |
||||
|
||||
/**
|
||||
* Update hash value. |
||||
* |
||||
* @param context hash function context |
||||
* @param data input data to update hash with |
||||
* @param len input data length |
||||
*/ |
||||
void av_sha_update(struct AVSHA* context, const uint8_t* data, unsigned int len); |
||||
|
||||
/**
|
||||
* Finish hashing and output digest value. |
||||
* |
||||
* @param context hash function context |
||||
* @param digest buffer where output digest value is stored |
||||
*/ |
||||
void av_sha_final(struct AVSHA* context, uint8_t *digest); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_SHA_H */ |
@ -1,75 +0,0 @@ |
||||
/*
|
||||
* Copyright (C) 2007 Michael Niedermayer <michaelni@gmx.at> |
||||
* Copyright (C) 2013 James Almer <jamrial@gmail.com> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_SHA512_H |
||||
#define AVUTIL_SHA512_H |
||||
|
||||
#include <stdint.h> |
||||
|
||||
#include "attributes.h" |
||||
#include "version.h" |
||||
|
||||
/**
|
||||
* @defgroup lavu_sha512 SHA512 |
||||
* @ingroup lavu_crypto |
||||
* @{ |
||||
*/ |
||||
|
||||
extern const int av_sha512_size; |
||||
|
||||
struct AVSHA512; |
||||
|
||||
/**
|
||||
* Allocate an AVSHA512 context. |
||||
*/ |
||||
struct AVSHA512 *av_sha512_alloc(void); |
||||
|
||||
/**
|
||||
* Initialize SHA-2 512 hashing. |
||||
* |
||||
* @param context pointer to the function context (of size av_sha512_size) |
||||
* @param bits number of bits in digest (224, 256, 384 or 512 bits) |
||||
* @return zero if initialization succeeded, -1 otherwise |
||||
*/ |
||||
int av_sha512_init(struct AVSHA512* context, int bits); |
||||
|
||||
/**
|
||||
* Update hash value. |
||||
* |
||||
* @param context hash function context |
||||
* @param data input data to update hash with |
||||
* @param len input data length |
||||
*/ |
||||
void av_sha512_update(struct AVSHA512* context, const uint8_t* data, unsigned int len); |
||||
|
||||
/**
|
||||
* Finish hashing and output digest value. |
||||
* |
||||
* @param context hash function context |
||||
* @param digest buffer where output digest value is stored |
||||
*/ |
||||
void av_sha512_final(struct AVSHA512* context, uint8_t *digest); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_SHA512_H */ |
@ -1,41 +0,0 @@ |
||||
/*
|
||||
* Copyright (c) 2000-2003 Fabrice Bellard |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_TIME_H |
||||
#define AVUTIL_TIME_H |
||||
|
||||
#include <stdint.h> |
||||
|
||||
/**
|
||||
* Get the current time in microseconds. |
||||
*/ |
||||
int64_t av_gettime(void); |
||||
|
||||
/**
|
||||
* Sleep for a period of time. Although the duration is expressed in |
||||
* microseconds, the actual delay may be rounded to the precision of the |
||||
* system timer. |
||||
* |
||||
* @param usec Number of microseconds to sleep. |
||||
* @return zero on success or (negative) error code. |
||||
*/ |
||||
int av_usleep(unsigned usec); |
||||
|
||||
#endif /* AVUTIL_TIME_H */ |
@ -1,140 +0,0 @@ |
||||
/*
|
||||
* Copyright (c) 2006 Smartjog S.A.S, Baptiste Coudurier <baptiste.coudurier@gmail.com> |
||||
* Copyright (c) 2011-2012 Smartjog S.A.S, Clément Bœsch <clement.boesch@smartjog.com> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
/**
|
||||
* @file |
||||
* Timecode helpers header |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_TIMECODE_H |
||||
#define AVUTIL_TIMECODE_H |
||||
|
||||
#include <stdint.h> |
||||
#include "rational.h" |
||||
|
||||
#define AV_TIMECODE_STR_SIZE 16 |
||||
|
||||
enum AVTimecodeFlag { |
||||
AV_TIMECODE_FLAG_DROPFRAME = 1<<0, ///< timecode is drop frame
|
||||
AV_TIMECODE_FLAG_24HOURSMAX = 1<<1, ///< timecode wraps after 24 hours
|
||||
AV_TIMECODE_FLAG_ALLOWNEGATIVE = 1<<2, ///< negative time values are allowed
|
||||
}; |
||||
|
||||
typedef struct { |
||||
int start; ///< timecode frame start (first base frame number)
|
||||
uint32_t flags; ///< flags such as drop frame, +24 hours support, ...
|
||||
AVRational rate; ///< frame rate in rational form
|
||||
unsigned fps; ///< frame per second; must be consistent with the rate field
|
||||
} AVTimecode; |
||||
|
||||
/**
|
||||
* Adjust frame number for NTSC drop frame time code. |
||||
* |
||||
* @param framenum frame number to adjust |
||||
* @param fps frame per second, 30 or 60 |
||||
* @return adjusted frame number |
||||
* @warning adjustment is only valid in NTSC 29.97 and 59.94 |
||||
*/ |
||||
int av_timecode_adjust_ntsc_framenum2(int framenum, int fps); |
||||
|
||||
/**
|
||||
* Convert frame number to SMPTE 12M binary representation. |
||||
* |
||||
* @param tc timecode data correctly initialized |
||||
* @param framenum frame number |
||||
* @return the SMPTE binary representation |
||||
* |
||||
* @note Frame number adjustment is automatically done in case of drop timecode, |
||||
* you do NOT have to call av_timecode_adjust_ntsc_framenum2(). |
||||
* @note The frame number is relative to tc->start. |
||||
* @note Color frame (CF), binary group flags (BGF) and biphase mark polarity |
||||
* correction (PC) bits are set to zero. |
||||
*/ |
||||
uint32_t av_timecode_get_smpte_from_framenum(const AVTimecode *tc, int framenum); |
||||
|
||||
/**
|
||||
* Load timecode string in buf. |
||||
* |
||||
* @param buf destination buffer, must be at least AV_TIMECODE_STR_SIZE long |
||||
* @param tc timecode data correctly initialized |
||||
* @param framenum frame number |
||||
* @return the buf parameter |
||||
* |
||||
* @note Timecode representation can be a negative timecode and have more than |
||||
* 24 hours, but will only be honored if the flags are correctly set. |
||||
* @note The frame number is relative to tc->start. |
||||
*/ |
||||
char *av_timecode_make_string(const AVTimecode *tc, char *buf, int framenum); |
||||
|
||||
/**
|
||||
* Get the timecode string from the SMPTE timecode format. |
||||
* |
||||
* @param buf destination buffer, must be at least AV_TIMECODE_STR_SIZE long |
||||
* @param tcsmpte the 32-bit SMPTE timecode |
||||
* @param prevent_df prevent the use of a drop flag when it is known the DF bit |
||||
* is arbitrary |
||||
* @return the buf parameter |
||||
*/ |
||||
char *av_timecode_make_smpte_tc_string(char *buf, uint32_t tcsmpte, int prevent_df); |
||||
|
||||
/**
|
||||
* Get the timecode string from the 25-bit timecode format (MPEG GOP format). |
||||
* |
||||
* @param buf destination buffer, must be at least AV_TIMECODE_STR_SIZE long |
||||
* @param tc25bit the 25-bits timecode |
||||
* @return the buf parameter |
||||
*/ |
||||
char *av_timecode_make_mpeg_tc_string(char *buf, uint32_t tc25bit); |
||||
|
||||
/**
|
||||
* Init a timecode struct with the passed parameters. |
||||
* |
||||
* @param log_ctx a pointer to an arbitrary struct of which the first field |
||||
* is a pointer to an AVClass struct (used for av_log) |
||||
* @param tc pointer to an allocated AVTimecode |
||||
* @param rate frame rate in rational form |
||||
* @param flags miscellaneous flags such as drop frame, +24 hours, ... |
||||
* (see AVTimecodeFlag) |
||||
* @param frame_start the first frame number |
||||
* @return 0 on success, AVERROR otherwise |
||||
*/ |
||||
int av_timecode_init(AVTimecode *tc, AVRational rate, int flags, int frame_start, void *log_ctx); |
||||
|
||||
/**
|
||||
* Parse timecode representation (hh:mm:ss[:;.]ff). |
||||
* |
||||
* @param log_ctx a pointer to an arbitrary struct of which the first field is a |
||||
* pointer to an AVClass struct (used for av_log). |
||||
* @param tc pointer to an allocated AVTimecode |
||||
* @param rate frame rate in rational form |
||||
* @param str timecode string which will determine the frame start |
||||
* @return 0 on success, AVERROR otherwise |
||||
*/ |
||||
int av_timecode_init_from_string(AVTimecode *tc, AVRational rate, const char *str, void *log_ctx); |
||||
|
||||
/**
|
||||
* Check if the timecode feature is available for the given frame rate |
||||
* |
||||
* @return 0 if supported, <0 otherwise |
||||
*/ |
||||
int av_timecode_check_frame_rate(AVRational rate); |
||||
|
||||
#endif /* AVUTIL_TIMECODE_H */ |
@ -1,74 +0,0 @@ |
||||
/*
|
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
/**
|
||||
* @file |
||||
* timestamp utils, mostly useful for debugging/logging purposes |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_TIMESTAMP_H |
||||
#define AVUTIL_TIMESTAMP_H |
||||
|
||||
#include "common.h" |
||||
|
||||
#define AV_TS_MAX_STRING_SIZE 32 |
||||
|
||||
/**
|
||||
* Fill the provided buffer with a string containing a timestamp |
||||
* representation. |
||||
* |
||||
* @param buf a buffer with size in bytes of at least AV_TS_MAX_STRING_SIZE |
||||
* @param ts the timestamp to represent |
||||
* @return the buffer in input |
||||
*/ |
||||
static inline char *av_ts_make_string(char *buf, int64_t ts) |
||||
{ |
||||
if (ts == AV_NOPTS_VALUE) snprintf(buf, AV_TS_MAX_STRING_SIZE, "NOPTS"); |
||||
else snprintf(buf, AV_TS_MAX_STRING_SIZE, "%"PRId64, ts); |
||||
return buf; |
||||
} |
||||
|
||||
/**
|
||||
* Convenience macro, the return value should be used only directly in |
||||
* function arguments but never stand-alone. |
||||
*/ |
||||
#define av_ts2str(ts) av_ts_make_string((char[AV_TS_MAX_STRING_SIZE]){0}, ts) |
||||
|
||||
/**
|
||||
* Fill the provided buffer with a string containing a timestamp time |
||||
* representation. |
||||
* |
||||
* @param buf a buffer with size in bytes of at least AV_TS_MAX_STRING_SIZE |
||||
* @param ts the timestamp to represent |
||||
* @param tb the timebase of the timestamp |
||||
* @return the buffer in input |
||||
*/ |
||||
static inline char *av_ts_make_time_string(char *buf, int64_t ts, AVRational *tb) |
||||
{ |
||||
if (ts == AV_NOPTS_VALUE) snprintf(buf, AV_TS_MAX_STRING_SIZE, "NOPTS"); |
||||
else snprintf(buf, AV_TS_MAX_STRING_SIZE, "%.6g", av_q2d(*tb) * ts); |
||||
return buf; |
||||
} |
||||
|
||||
/**
|
||||
* Convenience macro, the return value should be used only directly in |
||||
* function arguments but never stand-alone. |
||||
*/ |
||||
#define av_ts2timestr(ts, tb) av_ts_make_time_string((char[AV_TS_MAX_STRING_SIZE]){0}, ts, tb) |
||||
|
||||
#endif /* AVUTIL_TIMESTAMP_H */ |
@ -1,144 +0,0 @@ |
||||
/*
|
||||
* copyright (c) 2003 Fabrice Bellard |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_VERSION_H |
||||
#define AVUTIL_VERSION_H |
||||
|
||||
/**
|
||||
* @defgroup preproc_misc Preprocessor String Macros |
||||
* |
||||
* String manipulation macros |
||||
* |
||||
* @{ |
||||
*/ |
||||
|
||||
#define AV_STRINGIFY(s) AV_TOSTRING(s) |
||||
#define AV_TOSTRING(s) #s |
||||
|
||||
#define AV_GLUE(a, b) a ## b |
||||
#define AV_JOIN(a, b) AV_GLUE(a, b) |
||||
|
||||
#define AV_PRAGMA(s) _Pragma(#s) |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
/**
|
||||
* @defgroup version_utils Library Version Macros |
||||
* |
||||
* Useful to check and match library version in order to maintain |
||||
* backward compatibility. |
||||
* |
||||
* @{ |
||||
*/ |
||||
|
||||
#define AV_VERSION_INT(a, b, c) (a<<16 | b<<8 | c) |
||||
#define AV_VERSION_DOT(a, b, c) a ##.## b ##.## c |
||||
#define AV_VERSION(a, b, c) AV_VERSION_DOT(a, b, c) |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
|
||||
/**
|
||||
* @file |
||||
* @ingroup lavu |
||||
* Libavutil version macros |
||||
*/ |
||||
|
||||
/**
|
||||
* @defgroup lavu_ver Version and Build diagnostics |
||||
* |
||||
* Macros and function useful to check at compiletime and at runtime |
||||
* which version of libavutil is in use. |
||||
* |
||||
* @{ |
||||
*/ |
||||
|
||||
#define LIBAVUTIL_VERSION_MAJOR 52 |
||||
#define LIBAVUTIL_VERSION_MINOR 38 |
||||
#define LIBAVUTIL_VERSION_MICRO 100 |
||||
|
||||
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \ |
||||
LIBAVUTIL_VERSION_MINOR, \
|
||||
LIBAVUTIL_VERSION_MICRO) |
||||
#define LIBAVUTIL_VERSION AV_VERSION(LIBAVUTIL_VERSION_MAJOR, \ |
||||
LIBAVUTIL_VERSION_MINOR, \
|
||||
LIBAVUTIL_VERSION_MICRO) |
||||
#define LIBAVUTIL_BUILD LIBAVUTIL_VERSION_INT |
||||
|
||||
#define LIBAVUTIL_IDENT "Lavu" AV_STRINGIFY(LIBAVUTIL_VERSION) |
||||
|
||||
/**
|
||||
* @} |
||||
* |
||||
* @defgroup depr_guards Deprecation guards |
||||
* FF_API_* defines may be placed below to indicate public API that will be |
||||
* dropped at a future version bump. The defines themselves are not part of |
||||
* the public API and may change, break or disappear at any time. |
||||
* |
||||
* @{ |
||||
*/ |
||||
|
||||
#ifndef FF_API_GET_BITS_PER_SAMPLE_FMT |
||||
#define FF_API_GET_BITS_PER_SAMPLE_FMT (LIBAVUTIL_VERSION_MAJOR < 53) |
||||
#endif |
||||
#ifndef FF_API_FIND_OPT |
||||
#define FF_API_FIND_OPT (LIBAVUTIL_VERSION_MAJOR < 53) |
||||
#endif |
||||
#ifndef FF_API_OLD_AVOPTIONS |
||||
#define FF_API_OLD_AVOPTIONS (LIBAVUTIL_VERSION_MAJOR < 53) |
||||
#endif |
||||
#ifndef FF_API_PIX_FMT |
||||
#define FF_API_PIX_FMT (LIBAVUTIL_VERSION_MAJOR < 53) |
||||
#endif |
||||
#ifndef FF_API_CONTEXT_SIZE |
||||
#define FF_API_CONTEXT_SIZE (LIBAVUTIL_VERSION_MAJOR < 53) |
||||
#endif |
||||
#ifndef FF_API_PIX_FMT_DESC |
||||
#define FF_API_PIX_FMT_DESC (LIBAVUTIL_VERSION_MAJOR < 53) |
||||
#endif |
||||
#ifndef FF_API_AV_REVERSE |
||||
#define FF_API_AV_REVERSE (LIBAVUTIL_VERSION_MAJOR < 53) |
||||
#endif |
||||
#ifndef FF_API_AUDIOCONVERT |
||||
#define FF_API_AUDIOCONVERT (LIBAVUTIL_VERSION_MAJOR < 53) |
||||
#endif |
||||
#ifndef FF_API_CPU_FLAG_MMX2 |
||||
#define FF_API_CPU_FLAG_MMX2 (LIBAVUTIL_VERSION_MAJOR < 53) |
||||
#endif |
||||
#ifndef FF_API_SAMPLES_UTILS_RETURN_ZERO |
||||
#define FF_API_SAMPLES_UTILS_RETURN_ZERO (LIBAVUTIL_VERSION_MAJOR < 53) |
||||
#endif |
||||
#ifndef FF_API_LLS_PRIVATE |
||||
#define FF_API_LLS_PRIVATE (LIBAVUTIL_VERSION_MAJOR < 53) |
||||
#endif |
||||
#ifndef FF_API_AVFRAME_LAVC |
||||
#define FF_API_AVFRAME_LAVC (LIBAVUTIL_VERSION_MAJOR < 53) |
||||
#endif |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_VERSION_H */ |
||||
|
@ -1,62 +0,0 @@ |
||||
/*
|
||||
* A 32-bit implementation of the XTEA algorithm |
||||
* Copyright (c) 2012 Samuel Pitoiset |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef AVUTIL_XTEA_H |
||||
#define AVUTIL_XTEA_H |
||||
|
||||
#include <stdint.h> |
||||
|
||||
/**
|
||||
* @defgroup lavu_xtea XTEA |
||||
* @ingroup lavu_crypto |
||||
* @{ |
||||
*/ |
||||
|
||||
typedef struct AVXTEA { |
||||
uint32_t key[16]; |
||||
} AVXTEA; |
||||
|
||||
/**
|
||||
* Initialize an AVXTEA context. |
||||
* |
||||
* @param ctx an AVXTEA context |
||||
* @param key a key of 16 bytes used for encryption/decryption |
||||
*/ |
||||
void av_xtea_init(struct AVXTEA *ctx, const uint8_t key[16]); |
||||
|
||||
/**
|
||||
* Encrypt or decrypt a buffer using a previously initialized context. |
||||
* |
||||
* @param ctx an AVXTEA context |
||||
* @param dst destination array, can be equal to src |
||||
* @param src source array, can be equal to dst |
||||
* @param count number of 8 byte blocks |
||||
* @param iv initialization vector for CBC mode, if NULL then ECB will be used |
||||
* @param decrypt 0 for encryption, 1 for decryption |
||||
*/ |
||||
void av_xtea_crypt(struct AVXTEA *ctx, uint8_t *dst, const uint8_t *src, |
||||
int count, uint8_t *iv, int decrypt); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* AVUTIL_XTEA_H */ |
@ -1,362 +0,0 @@ |
||||
/*
|
||||
* Copyright (C) 2001-2011 Michael Niedermayer <michaelni@gmx.at> |
||||
* |
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef SWSCALE_SWSCALE_H |
||||
#define SWSCALE_SWSCALE_H |
||||
|
||||
/**
|
||||
* @file |
||||
* @ingroup lsws |
||||
* external API header |
||||
*/ |
||||
|
||||
/**
|
||||
* @defgroup lsws Libswscale |
||||
* @{ |
||||
*/ |
||||
|
||||
#include <stdint.h> |
||||
|
||||
#include "libavutil/avutil.h" |
||||
#include "libavutil/log.h" |
||||
#include "libavutil/pixfmt.h" |
||||
#include "version.h" |
||||
|
||||
/**
|
||||
* Return the LIBSWSCALE_VERSION_INT constant. |
||||
*/ |
||||
unsigned swscale_version(void); |
||||
|
||||
/**
|
||||
* Return the libswscale build-time configuration. |
||||
*/ |
||||
const char *swscale_configuration(void); |
||||
|
||||
/**
|
||||
* Return the libswscale license. |
||||
*/ |
||||
const char *swscale_license(void); |
||||
|
||||
/* values for the flags, the stuff on the command line is different */ |
||||
#define SWS_FAST_BILINEAR 1 |
||||
#define SWS_BILINEAR 2 |
||||
#define SWS_BICUBIC 4 |
||||
#define SWS_X 8 |
||||
#define SWS_POINT 0x10 |
||||
#define SWS_AREA 0x20 |
||||
#define SWS_BICUBLIN 0x40 |
||||
#define SWS_GAUSS 0x80 |
||||
#define SWS_SINC 0x100 |
||||
#define SWS_LANCZOS 0x200 |
||||
#define SWS_SPLINE 0x400 |
||||
|
||||
#define SWS_SRC_V_CHR_DROP_MASK 0x30000 |
||||
#define SWS_SRC_V_CHR_DROP_SHIFT 16 |
||||
|
||||
#define SWS_PARAM_DEFAULT 123456 |
||||
|
||||
#define SWS_PRINT_INFO 0x1000 |
||||
|
||||
//the following 3 flags are not completely implemented
|
||||
//internal chrominace subsampling info
|
||||
#define SWS_FULL_CHR_H_INT 0x2000 |
||||
//input subsampling info
|
||||
#define SWS_FULL_CHR_H_INP 0x4000 |
||||
#define SWS_DIRECT_BGR 0x8000 |
||||
#define SWS_ACCURATE_RND 0x40000 |
||||
#define SWS_BITEXACT 0x80000 |
||||
#define SWS_ERROR_DIFFUSION 0x800000 |
||||
|
||||
#if FF_API_SWS_CPU_CAPS |
||||
/**
|
||||
* CPU caps are autodetected now, those flags |
||||
* are only provided for API compatibility. |
||||
*/ |
||||
#define SWS_CPU_CAPS_MMX 0x80000000 |
||||
#define SWS_CPU_CAPS_MMXEXT 0x20000000 |
||||
#define SWS_CPU_CAPS_MMX2 0x20000000 |
||||
#define SWS_CPU_CAPS_3DNOW 0x40000000 |
||||
#define SWS_CPU_CAPS_ALTIVEC 0x10000000 |
||||
#define SWS_CPU_CAPS_BFIN 0x01000000 |
||||
#define SWS_CPU_CAPS_SSE2 0x02000000 |
||||
#endif |
||||
|
||||
#define SWS_MAX_REDUCE_CUTOFF 0.002 |
||||
|
||||
#define SWS_CS_ITU709 1 |
||||
#define SWS_CS_FCC 4 |
||||
#define SWS_CS_ITU601 5 |
||||
#define SWS_CS_ITU624 5 |
||||
#define SWS_CS_SMPTE170M 5 |
||||
#define SWS_CS_SMPTE240M 7 |
||||
#define SWS_CS_DEFAULT 5 |
||||
|
||||
/**
|
||||
* Return a pointer to yuv<->rgb coefficients for the given colorspace |
||||
* suitable for sws_setColorspaceDetails(). |
||||
* |
||||
* @param colorspace One of the SWS_CS_* macros. If invalid, |
||||
* SWS_CS_DEFAULT is used. |
||||
*/ |
||||
const int *sws_getCoefficients(int colorspace); |
||||
|
||||
// when used for filters they must have an odd number of elements
|
||||
// coeffs cannot be shared between vectors
|
||||
typedef struct SwsVector { |
||||
double *coeff; ///< pointer to the list of coefficients
|
||||
int length; ///< number of coefficients in the vector
|
||||
} SwsVector; |
||||
|
||||
// vectors can be shared
|
||||
typedef struct SwsFilter { |
||||
SwsVector *lumH; |
||||
SwsVector *lumV; |
||||
SwsVector *chrH; |
||||
SwsVector *chrV; |
||||
} SwsFilter; |
||||
|
||||
struct SwsContext; |
||||
|
||||
/**
|
||||
* Return a positive value if pix_fmt is a supported input format, 0 |
||||
* otherwise. |
||||
*/ |
||||
int sws_isSupportedInput(enum AVPixelFormat pix_fmt); |
||||
|
||||
/**
|
||||
* Return a positive value if pix_fmt is a supported output format, 0 |
||||
* otherwise. |
||||
*/ |
||||
int sws_isSupportedOutput(enum AVPixelFormat pix_fmt); |
||||
|
||||
/**
|
||||
* @param[in] pix_fmt the pixel format |
||||
* @return a positive value if an endianness conversion for pix_fmt is |
||||
* supported, 0 otherwise. |
||||
*/ |
||||
int sws_isSupportedEndiannessConversion(enum AVPixelFormat pix_fmt); |
||||
|
||||
/**
|
||||
* Allocate an empty SwsContext. This must be filled and passed to |
||||
* sws_init_context(). For filling see AVOptions, options.c and |
||||
* sws_setColorspaceDetails(). |
||||
*/ |
||||
struct SwsContext *sws_alloc_context(void); |
||||
|
||||
/**
|
||||
* Initialize the swscaler context sws_context. |
||||
* |
||||
* @return zero or positive value on success, a negative value on |
||||
* error |
||||
*/ |
||||
int sws_init_context(struct SwsContext *sws_context, SwsFilter *srcFilter, SwsFilter *dstFilter); |
||||
|
||||
/**
|
||||
* Free the swscaler context swsContext. |
||||
* If swsContext is NULL, then does nothing. |
||||
*/ |
||||
void sws_freeContext(struct SwsContext *swsContext); |
||||
|
||||
#if FF_API_SWS_GETCONTEXT |
||||
/**
|
||||
* Allocate and return an SwsContext. You need it to perform |
||||
* scaling/conversion operations using sws_scale(). |
||||
* |
||||
* @param srcW the width of the source image |
||||
* @param srcH the height of the source image |
||||
* @param srcFormat the source image format |
||||
* @param dstW the width of the destination image |
||||
* @param dstH the height of the destination image |
||||
* @param dstFormat the destination image format |
||||
* @param flags specify which algorithm and options to use for rescaling |
||||
* @return a pointer to an allocated context, or NULL in case of error |
||||
* @note this function is to be removed after a saner alternative is |
||||
* written |
||||
* @deprecated Use sws_getCachedContext() instead. |
||||
*/ |
||||
struct SwsContext *sws_getContext(int srcW, int srcH, enum AVPixelFormat srcFormat, |
||||
int dstW, int dstH, enum AVPixelFormat dstFormat, |
||||
int flags, SwsFilter *srcFilter, |
||||
SwsFilter *dstFilter, const double *param); |
||||
#endif |
||||
|
||||
/**
|
||||
* Scale the image slice in srcSlice and put the resulting scaled |
||||
* slice in the image in dst. A slice is a sequence of consecutive |
||||
* rows in an image. |
||||
* |
||||
* Slices have to be provided in sequential order, either in |
||||
* top-bottom or bottom-top order. If slices are provided in |
||||
* non-sequential order the behavior of the function is undefined. |
||||
* |
||||
* @param c the scaling context previously created with |
||||
* sws_getContext() |
||||
* @param srcSlice the array containing the pointers to the planes of |
||||
* the source slice |
||||
* @param srcStride the array containing the strides for each plane of |
||||
* the source image |
||||
* @param srcSliceY the position in the source image of the slice to |
||||
* process, that is the number (counted starting from |
||||
* zero) in the image of the first row of the slice |
||||
* @param srcSliceH the height of the source slice, that is the number |
||||
* of rows in the slice |
||||
* @param dst the array containing the pointers to the planes of |
||||
* the destination image |
||||
* @param dstStride the array containing the strides for each plane of |
||||
* the destination image |
||||
* @return the height of the output slice |
||||
*/ |
||||
int sws_scale(struct SwsContext *c, const uint8_t *const srcSlice[], |
||||
const int srcStride[], int srcSliceY, int srcSliceH, |
||||
uint8_t *const dst[], const int dstStride[]); |
||||
|
||||
/**
|
||||
* @param dstRange flag indicating the while-black range of the output (1=jpeg / 0=mpeg) |
||||
* @param srcRange flag indicating the while-black range of the input (1=jpeg / 0=mpeg) |
||||
* @param table the yuv2rgb coefficients describing the output yuv space, normally ff_yuv2rgb_coeffs[x] |
||||
* @param inv_table the yuv2rgb coefficients describing the input yuv space, normally ff_yuv2rgb_coeffs[x] |
||||
* @param brightness 16.16 fixed point brightness correction |
||||
* @param contrast 16.16 fixed point contrast correction |
||||
* @param saturation 16.16 fixed point saturation correction |
||||
* @return -1 if not supported |
||||
*/ |
||||
int sws_setColorspaceDetails(struct SwsContext *c, const int inv_table[4], |
||||
int srcRange, const int table[4], int dstRange, |
||||
int brightness, int contrast, int saturation); |
||||
|
||||
/**
|
||||
* @return -1 if not supported |
||||
*/ |
||||
int sws_getColorspaceDetails(struct SwsContext *c, int **inv_table, |
||||
int *srcRange, int **table, int *dstRange, |
||||
int *brightness, int *contrast, int *saturation); |
||||
|
||||
/**
|
||||
* Allocate and return an uninitialized vector with length coefficients. |
||||
*/ |
||||
SwsVector *sws_allocVec(int length); |
||||
|
||||
/**
|
||||
* Return a normalized Gaussian curve used to filter stuff |
||||
* quality = 3 is high quality, lower is lower quality. |
||||
*/ |
||||
SwsVector *sws_getGaussianVec(double variance, double quality); |
||||
|
||||
/**
|
||||
* Allocate and return a vector with length coefficients, all |
||||
* with the same value c. |
||||
*/ |
||||
SwsVector *sws_getConstVec(double c, int length); |
||||
|
||||
/**
|
||||
* Allocate and return a vector with just one coefficient, with |
||||
* value 1.0. |
||||
*/ |
||||
SwsVector *sws_getIdentityVec(void); |
||||
|
||||
/**
|
||||
* Scale all the coefficients of a by the scalar value. |
||||
*/ |
||||
void sws_scaleVec(SwsVector *a, double scalar); |
||||
|
||||
/**
|
||||
* Scale all the coefficients of a so that their sum equals height. |
||||
*/ |
||||
void sws_normalizeVec(SwsVector *a, double height); |
||||
void sws_convVec(SwsVector *a, SwsVector *b); |
||||
void sws_addVec(SwsVector *a, SwsVector *b); |
||||
void sws_subVec(SwsVector *a, SwsVector *b); |
||||
void sws_shiftVec(SwsVector *a, int shift); |
||||
|
||||
/**
|
||||
* Allocate and return a clone of the vector a, that is a vector |
||||
* with the same coefficients as a. |
||||
*/ |
||||
SwsVector *sws_cloneVec(SwsVector *a); |
||||
|
||||
/**
|
||||
* Print with av_log() a textual representation of the vector a |
||||
* if log_level <= av_log_level. |
||||
*/ |
||||
void sws_printVec2(SwsVector *a, AVClass *log_ctx, int log_level); |
||||
|
||||
void sws_freeVec(SwsVector *a); |
||||
|
||||
SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur, |
||||
float lumaSharpen, float chromaSharpen, |
||||
float chromaHShift, float chromaVShift, |
||||
int verbose); |
||||
void sws_freeFilter(SwsFilter *filter); |
||||
|
||||
/**
|
||||
* Check if context can be reused, otherwise reallocate a new one. |
||||
* |
||||
* If context is NULL, just calls sws_getContext() to get a new |
||||
* context. Otherwise, checks if the parameters are the ones already |
||||
* saved in context. If that is the case, returns the current |
||||
* context. Otherwise, frees context and gets a new context with |
||||
* the new parameters. |
||||
* |
||||
* Be warned that srcFilter and dstFilter are not checked, they |
||||
* are assumed to remain the same. |
||||
*/ |
||||
struct SwsContext *sws_getCachedContext(struct SwsContext *context, |
||||
int srcW, int srcH, enum AVPixelFormat srcFormat, |
||||
int dstW, int dstH, enum AVPixelFormat dstFormat, |
||||
int flags, SwsFilter *srcFilter, |
||||
SwsFilter *dstFilter, const double *param); |
||||
|
||||
/**
|
||||
* Convert an 8-bit paletted frame into a frame with a color depth of 32 bits. |
||||
* |
||||
* The output frame will have the same packed format as the palette. |
||||
* |
||||
* @param src source frame buffer |
||||
* @param dst destination frame buffer |
||||
* @param num_pixels number of pixels to convert |
||||
* @param palette array with [256] entries, which must match color arrangement (RGB or BGR) of src |
||||
*/ |
||||
void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette); |
||||
|
||||
/**
|
||||
* Convert an 8-bit paletted frame into a frame with a color depth of 24 bits. |
||||
* |
||||
* With the palette format "ABCD", the destination frame ends up with the format "ABC". |
||||
* |
||||
* @param src source frame buffer |
||||
* @param dst destination frame buffer |
||||
* @param num_pixels number of pixels to convert |
||||
* @param palette array with [256] entries, which must match color arrangement (RGB or BGR) of src |
||||
*/ |
||||
void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette); |
||||
|
||||
/**
|
||||
* Get the AVClass for swsContext. It can be used in combination with |
||||
* AV_OPT_SEARCH_FAKE_OBJ for examining options. |
||||
* |
||||
* @see av_opt_find(). |
||||
*/ |
||||
const AVClass *sws_get_class(void); |
||||
|
||||
/**
|
||||
* @} |
||||
*/ |
||||
|
||||
#endif /* SWSCALE_SWSCALE_H */ |
@ -1,59 +0,0 @@ |
||||
/*
|
||||
* This file is part of FFmpeg. |
||||
* |
||||
* FFmpeg is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU Lesser General Public |
||||
* License as published by the Free Software Foundation; either |
||||
* version 2.1 of the License, or (at your option) any later version. |
||||
* |
||||
* FFmpeg is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||||
* Lesser General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU Lesser General Public |
||||
* License along with FFmpeg; if not, write to the Free Software |
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||
*/ |
||||
|
||||
#ifndef SWSCALE_VERSION_H |
||||
#define SWSCALE_VERSION_H |
||||
|
||||
/**
|
||||
* @file |
||||
* swscale version macros |
||||
*/ |
||||
|
||||
#include "libavutil/avutil.h" |
||||
|
||||
#define LIBSWSCALE_VERSION_MAJOR 2 |
||||
#define LIBSWSCALE_VERSION_MINOR 3 |
||||
#define LIBSWSCALE_VERSION_MICRO 100 |
||||
|
||||
#define LIBSWSCALE_VERSION_INT AV_VERSION_INT(LIBSWSCALE_VERSION_MAJOR, \ |
||||
LIBSWSCALE_VERSION_MINOR, \
|
||||
LIBSWSCALE_VERSION_MICRO) |
||||
#define LIBSWSCALE_VERSION AV_VERSION(LIBSWSCALE_VERSION_MAJOR, \ |
||||
LIBSWSCALE_VERSION_MINOR, \
|
||||
LIBSWSCALE_VERSION_MICRO) |
||||
#define LIBSWSCALE_BUILD LIBSWSCALE_VERSION_INT |
||||
|
||||
#define LIBSWSCALE_IDENT "SwS" AV_STRINGIFY(LIBSWSCALE_VERSION) |
||||
|
||||
/**
|
||||
* FF_API_* defines may be placed below to indicate public API that will be |
||||
* dropped at a future version bump. The defines themselves are not part of |
||||
* the public API and may change, break or disappear at any time. |
||||
*/ |
||||
|
||||
#ifndef FF_API_SWS_GETCONTEXT |
||||
#define FF_API_SWS_GETCONTEXT (LIBSWSCALE_VERSION_MAJOR < 3) |
||||
#endif |
||||
#ifndef FF_API_SWS_CPU_CAPS |
||||
#define FF_API_SWS_CPU_CAPS (LIBSWSCALE_VERSION_MAJOR < 3) |
||||
#endif |
||||
#ifndef FF_API_SWS_FORMAT_NAME |
||||
#define FF_API_SWS_FORMAT_NAME (LIBSWSCALE_VERSION_MAJOR < 3) |
||||
#endif |
||||
|
||||
#endif /* SWSCALE_VERSION_H */ |
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Reference in new issue