mirror of https://github.com/FFmpeg/FFmpeg.git
This library does not fit into Libav as a whole and its code is just a maintenance burden. Furthermore it is now available as an external project, which completely obviates any reason to keep it around. URL: http://git.videolan.org/?p=libpostproc.gitpull/3/merge
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NAME = postproc
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FFLIBS = avutil
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HEADERS = postprocess.h
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OBJS = postprocess.o
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LIBPOSTPROC_$MAJOR { |
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global: postproc_*; pp_*; |
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local: *; |
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}; |
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/*
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* Copyright (C) 2001-2003 Michael Niedermayer (michaelni@gmx.at) |
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* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* Libav 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 |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with Libav; 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 POSTPROC_POSTPROCESS_H |
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#define POSTPROC_POSTPROCESS_H |
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/**
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* @file |
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* @brief |
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* external postprocessing API |
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*/ |
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#include "libavutil/avutil.h" |
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#define LIBPOSTPROC_VERSION_MAJOR 52 |
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#define LIBPOSTPROC_VERSION_MINOR 0 |
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#define LIBPOSTPROC_VERSION_MICRO 0 |
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#define LIBPOSTPROC_VERSION_INT AV_VERSION_INT(LIBPOSTPROC_VERSION_MAJOR, \ |
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LIBPOSTPROC_VERSION_MINOR, \
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LIBPOSTPROC_VERSION_MICRO) |
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#define LIBPOSTPROC_VERSION AV_VERSION(LIBPOSTPROC_VERSION_MAJOR, \ |
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LIBPOSTPROC_VERSION_MINOR, \
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LIBPOSTPROC_VERSION_MICRO) |
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#define LIBPOSTPROC_BUILD LIBPOSTPROC_VERSION_INT |
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#define LIBPOSTPROC_IDENT "postproc" AV_STRINGIFY(LIBPOSTPROC_VERSION) |
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/**
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* Return the LIBPOSTPROC_VERSION_INT constant. |
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*/ |
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unsigned postproc_version(void); |
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/**
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* Return the libpostproc build-time configuration. |
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*/ |
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const char *postproc_configuration(void); |
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/**
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* Return the libpostproc license. |
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*/ |
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const char *postproc_license(void); |
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#define PP_QUALITY_MAX 6 |
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#define QP_STORE_T int8_t |
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#include <inttypes.h> |
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typedef void pp_context; |
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typedef void pp_mode; |
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extern const char pp_help[]; ///< a simple help text
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void pp_postprocess(const uint8_t * src[3], const int srcStride[3], |
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uint8_t * dst[3], const int dstStride[3], |
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int horizontalSize, int verticalSize, |
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const QP_STORE_T *QP_store, int QP_stride, |
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pp_mode *mode, pp_context *ppContext, int pict_type); |
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/**
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* Return a pp_mode or NULL if an error occurred. |
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* |
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* @param name the string after "-pp" on the command line |
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* @param quality a number from 0 to PP_QUALITY_MAX |
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*/ |
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pp_mode *pp_get_mode_by_name_and_quality(const char *name, int quality); |
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void pp_free_mode(pp_mode *mode); |
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pp_context *pp_get_context(int width, int height, int flags); |
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void pp_free_context(pp_context *ppContext); |
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#define PP_CPU_CAPS_MMX 0x80000000 |
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#define PP_CPU_CAPS_MMX2 0x20000000 |
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#define PP_CPU_CAPS_3DNOW 0x40000000 |
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#define PP_CPU_CAPS_ALTIVEC 0x10000000 |
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#define PP_FORMAT 0x00000008 |
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#define PP_FORMAT_420 (0x00000011|PP_FORMAT) |
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#define PP_FORMAT_422 (0x00000001|PP_FORMAT) |
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#define PP_FORMAT_411 (0x00000002|PP_FORMAT) |
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#define PP_FORMAT_444 (0x00000000|PP_FORMAT) |
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#define PP_PICT_TYPE_QP2 0x00000010 ///< MPEG2 style QScale
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#endif /* POSTPROC_POSTPROCESS_H */ |
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@ -1,179 +0,0 @@ |
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/*
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* Copyright (C) 2001-2002 Michael Niedermayer (michaelni@gmx.at) |
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* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* Libav 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 |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with Libav; 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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/**
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* @file |
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* internal api header. |
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*/ |
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#ifndef POSTPROC_POSTPROCESS_INTERNAL_H |
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#define POSTPROC_POSTPROCESS_INTERNAL_H |
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#include <string.h> |
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#include "libavutil/avutil.h" |
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#include "libavutil/log.h" |
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#include "postprocess.h" |
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#define V_DEBLOCK 0x01 |
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#define H_DEBLOCK 0x02 |
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#define DERING 0x04 |
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#define LEVEL_FIX 0x08 ///< Brightness & Contrast
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#define LUM_V_DEBLOCK V_DEBLOCK // 1
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#define LUM_H_DEBLOCK H_DEBLOCK // 2
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#define CHROM_V_DEBLOCK (V_DEBLOCK<<4) // 16
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#define CHROM_H_DEBLOCK (H_DEBLOCK<<4) // 32
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#define LUM_DERING DERING // 4
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#define CHROM_DERING (DERING<<4) // 64
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#define LUM_LEVEL_FIX LEVEL_FIX // 8
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#define CHROM_LEVEL_FIX (LEVEL_FIX<<4) // 128 (not implemented yet)
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// Experimental vertical filters
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#define V_X1_FILTER 0x0200 // 512
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#define V_A_DEBLOCK 0x0400 |
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// Experimental horizontal filters
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#define H_X1_FILTER 0x2000 // 8192
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#define H_A_DEBLOCK 0x4000 |
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/// select between full y range (255-0) or standart one (234-16)
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#define FULL_Y_RANGE 0x8000 // 32768
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//Deinterlacing Filters
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#define LINEAR_IPOL_DEINT_FILTER 0x10000 // 65536
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#define LINEAR_BLEND_DEINT_FILTER 0x20000 // 131072
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#define CUBIC_BLEND_DEINT_FILTER 0x8000 // (not implemented yet)
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#define CUBIC_IPOL_DEINT_FILTER 0x40000 // 262144
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#define MEDIAN_DEINT_FILTER 0x80000 // 524288
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#define FFMPEG_DEINT_FILTER 0x400000 |
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#define LOWPASS5_DEINT_FILTER 0x800000 |
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#define TEMP_NOISE_FILTER 0x100000 |
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#define FORCE_QUANT 0x200000 |
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//use if you want a faster postprocessing code
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//cannot differentiate between chroma & luma filters (both on or both off)
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//obviously the -pp option on the command line has no effect except turning the here selected
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//filters on
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//#define COMPILE_TIME_MODE 0x77
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static inline int CLIP(int a){ |
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if(a&256) return ((a)>>31)^(-1); |
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else return a; |
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} |
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/**
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* Postprocessng filter. |
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*/ |
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struct PPFilter{ |
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const char *shortName; |
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const char *longName; |
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int chromDefault; ///< is chrominance filtering on by default if this filter is manually activated
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int minLumQuality; ///< minimum quality to turn luminance filtering on
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int minChromQuality; ///< minimum quality to turn chrominance filtering on
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int mask; ///< Bitmask to turn this filter on
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}; |
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/**
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* Postprocessng mode. |
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*/ |
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typedef struct PPMode{ |
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int lumMode; ///< acivates filters for luminance
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int chromMode; ///< acivates filters for chrominance
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int error; ///< non zero on error
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int minAllowedY; ///< for brigtness correction
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int maxAllowedY; ///< for brihtness correction
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float maxClippedThreshold; ///< amount of "black" you are willing to lose to get a brightness-corrected picture
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int maxTmpNoise[3]; ///< for Temporal Noise Reducing filter (Maximal sum of abs differences)
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int baseDcDiff; |
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int flatnessThreshold; |
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int forcedQuant; ///< quantizer if FORCE_QUANT is used
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} PPMode; |
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/**
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* postprocess context. |
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*/ |
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typedef struct PPContext{ |
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/**
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* info on struct for av_log |
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*/ |
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const AVClass *av_class; |
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uint8_t *tempBlocks; ///<used for the horizontal code
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/**
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* luma histogram. |
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* we need 64bit here otherwise we'll going to have a problem |
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* after watching a black picture for 5 hours |
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*/ |
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uint64_t *yHistogram; |
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DECLARE_ALIGNED(8, uint64_t, packedYOffset); |
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DECLARE_ALIGNED(8, uint64_t, packedYScale); |
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/** Temporal noise reducing buffers */ |
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uint8_t *tempBlurred[3]; |
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int32_t *tempBlurredPast[3]; |
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/** Temporary buffers for handling the last row(s) */ |
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uint8_t *tempDst; |
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uint8_t *tempSrc; |
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uint8_t *deintTemp; |
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DECLARE_ALIGNED(8, uint64_t, pQPb); |
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DECLARE_ALIGNED(8, uint64_t, pQPb2); |
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DECLARE_ALIGNED(8, uint64_t, mmxDcOffset)[64]; |
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DECLARE_ALIGNED(8, uint64_t, mmxDcThreshold)[64]; |
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QP_STORE_T *stdQPTable; ///< used to fix MPEG2 style qscale
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QP_STORE_T *nonBQPTable; |
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QP_STORE_T *forcedQPTable; |
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int QP; |
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int nonBQP; |
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int frameNum; |
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int cpuCaps; |
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int qpStride; ///<size of qp buffers (needed to realloc them if needed)
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int stride; ///<size of some buffers (needed to realloc them if needed)
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int hChromaSubSample; |
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int vChromaSubSample; |
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PPMode ppMode; |
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} PPContext; |
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static inline void linecpy(void *dest, const void *src, int lines, int stride) { |
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if (stride > 0) { |
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memcpy(dest, src, lines*stride); |
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} else { |
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memcpy((uint8_t*)dest+(lines-1)*stride, (const uint8_t*)src+(lines-1)*stride, -lines*stride); |
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} |
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} |
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#endif /* POSTPROC_POSTPROCESS_INTERNAL_H */ |
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