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121 lines
2.5 KiB
121 lines
2.5 KiB
/* |
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* Copyright (c) 2015 Kieran Kunhya |
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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_CFHD_H |
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#define AVCODEC_CFHD_H |
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#include <stdint.h> |
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#include "libavutil/avassert.h" |
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#include "avcodec.h" |
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#include "bytestream.h" |
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#include "get_bits.h" |
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#include "vlc.h" |
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#define VLC_BITS 9 |
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#define SUBBAND_COUNT 10 |
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typedef struct CFHD_RL_VLC_ELEM { |
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int16_t level; |
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int8_t len; |
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uint16_t run; |
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} CFHD_RL_VLC_ELEM; |
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#define DWT_LEVELS 3 |
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typedef struct SubBand { |
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int level; |
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int orientation; |
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ptrdiff_t stride; |
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int a_width; |
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int width; |
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int a_height; |
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int height; |
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int pshift; |
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int quant; |
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uint8_t *ibuf; |
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} SubBand; |
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typedef struct Plane { |
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int width; |
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int height; |
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ptrdiff_t stride; |
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int16_t *idwt_buf; |
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int16_t *idwt_tmp; |
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/* TODO: merge this into SubBand structure */ |
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int16_t *subband[SUBBAND_COUNT]; |
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int16_t *l_h[8]; |
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SubBand band[DWT_LEVELS][4]; |
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} Plane; |
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typedef struct Peak { |
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int level; |
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int offset; |
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GetByteContext base; |
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} Peak; |
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typedef struct CFHDContext { |
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AVCodecContext *avctx; |
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CFHD_RL_VLC_ELEM table_9_rl_vlc[2088]; |
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VLC vlc_9; |
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CFHD_RL_VLC_ELEM table_18_rl_vlc[4572]; |
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VLC vlc_18; |
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GetBitContext gb; |
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int coded_width; |
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int coded_height; |
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int cropped_height; |
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enum AVPixelFormat coded_format; |
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int progressive; |
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int a_width; |
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int a_height; |
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int a_format; |
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int bpc; // bits per channel/component |
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int channel_cnt; |
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int subband_cnt; |
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int channel_num; |
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uint8_t lowpass_precision; |
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uint16_t quantisation; |
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int wavelet_depth; |
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int pshift; |
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int codebook; |
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int difference_coding; |
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int subband_num; |
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int level; |
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int subband_num_actual; |
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uint8_t prescale_shift[3]; |
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Plane plane[4]; |
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Peak peak; |
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} CFHDContext; |
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int ff_cfhd_init_vlcs(CFHDContext *s); |
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#endif /* AVCODEC_CFHD_H */
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