1/* 2 * Copyright (C) 2001-2002 Michael Niedermayer (michaelni@gmx.at) 3 * 4 * This file is part of FFmpeg. 5 * 6 * FFmpeg is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * FFmpeg is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with FFmpeg; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19 */ 20 21/** 22 * @file libpostproc/postprocess_internal.h 23 * internal api header. 24 */ 25 26#ifndef POSTPROC_POSTPROCESS_INTERNAL_H 27#define POSTPROC_POSTPROCESS_INTERNAL_H 28 29#include <string.h> 30#include "libavutil/avutil.h" 31#include "postprocess.h" 32 33#define V_DEBLOCK 0x01 34#define H_DEBLOCK 0x02 35#define DERING 0x04 36#define LEVEL_FIX 0x08 ///< Brightness & Contrast 37 38#define LUM_V_DEBLOCK V_DEBLOCK // 1 39#define LUM_H_DEBLOCK H_DEBLOCK // 2 40#define CHROM_V_DEBLOCK (V_DEBLOCK<<4) // 16 41#define CHROM_H_DEBLOCK (H_DEBLOCK<<4) // 32 42#define LUM_DERING DERING // 4 43#define CHROM_DERING (DERING<<4) // 64 44#define LUM_LEVEL_FIX LEVEL_FIX // 8 45#define CHROM_LEVEL_FIX (LEVEL_FIX<<4) // 128 (not implemented yet) 46 47// Experimental vertical filters 48#define V_X1_FILTER 0x0200 // 512 49#define V_A_DEBLOCK 0x0400 50 51// Experimental horizontal filters 52#define H_X1_FILTER 0x2000 // 8192 53#define H_A_DEBLOCK 0x4000 54 55/// select between full y range (255-0) or standart one (234-16) 56#define FULL_Y_RANGE 0x8000 // 32768 57 58//Deinterlacing Filters 59#define LINEAR_IPOL_DEINT_FILTER 0x10000 // 65536 60#define LINEAR_BLEND_DEINT_FILTER 0x20000 // 131072 61#define CUBIC_BLEND_DEINT_FILTER 0x8000 // (not implemented yet) 62#define CUBIC_IPOL_DEINT_FILTER 0x40000 // 262144 63#define MEDIAN_DEINT_FILTER 0x80000 // 524288 64#define FFMPEG_DEINT_FILTER 0x400000 65#define LOWPASS5_DEINT_FILTER 0x800000 66 67#define TEMP_NOISE_FILTER 0x100000 68#define FORCE_QUANT 0x200000 69 70//use if you want a faster postprocessing code 71//cannot differentiate between chroma & luma filters (both on or both off) 72//obviously the -pp option on the command line has no effect except turning the here selected 73//filters on 74//#define COMPILE_TIME_MODE 0x77 75 76static inline int CLIP(int a){ 77 if(a&256) return ((a)>>31)^(-1); 78 else return a; 79} 80/** 81 * Postprocessng filter. 82 */ 83struct PPFilter{ 84 const char *shortName; 85 const char *longName; 86 int chromDefault; ///< is chrominance filtering on by default if this filter is manually activated 87 int minLumQuality; ///< minimum quality to turn luminance filtering on 88 int minChromQuality; ///< minimum quality to turn chrominance filtering on 89 int mask; ///< Bitmask to turn this filter on 90}; 91 92/** 93 * Postprocessng mode. 94 */ 95typedef struct PPMode{ 96 int lumMode; ///< acivates filters for luminance 97 int chromMode; ///< acivates filters for chrominance 98 int error; ///< non zero on error 99 100 int minAllowedY; ///< for brigtness correction 101 int maxAllowedY; ///< for brihtness correction 102 float maxClippedThreshold; ///< amount of "black" u r willing to loose to get a brightness corrected picture 103 104 int maxTmpNoise[3]; ///< for Temporal Noise Reducing filter (Maximal sum of abs differences) 105 106 int baseDcDiff; 107 int flatnessThreshold; 108 109 int forcedQuant; ///< quantizer if FORCE_QUANT is used 110} PPMode; 111 112/** 113 * postprocess context. 114 */ 115typedef struct PPContext{ 116 /** 117 * info on struct for av_log 118 */ 119 const AVClass *av_class; 120 121 uint8_t *tempBlocks; ///<used for the horizontal code 122 123 /** 124 * luma histogram. 125 * we need 64bit here otherwise we'll going to have a problem 126 * after watching a black picture for 5 hours 127 */ 128 uint64_t *yHistogram; 129 130 DECLARE_ALIGNED(8, uint64_t, packedYOffset); 131 DECLARE_ALIGNED(8, uint64_t, packedYScale); 132 133 /** Temporal noise reducing buffers */ 134 uint8_t *tempBlurred[3]; 135 int32_t *tempBlurredPast[3]; 136 137 /** Temporary buffers for handling the last row(s) */ 138 uint8_t *tempDst; 139 uint8_t *tempSrc; 140 141 uint8_t *deintTemp; 142 143 DECLARE_ALIGNED(8, uint64_t, pQPb); 144 DECLARE_ALIGNED(8, uint64_t, pQPb2); 145 146 DECLARE_ALIGNED(8, uint64_t, mmxDcOffset[64]); 147 DECLARE_ALIGNED(8, uint64_t, mmxDcThreshold[64]); 148 149 QP_STORE_T *stdQPTable; ///< used to fix MPEG2 style qscale 150 QP_STORE_T *nonBQPTable; 151 QP_STORE_T *forcedQPTable; 152 153 int QP; 154 int nonBQP; 155 156 int frameNum; 157 158 int cpuCaps; 159 160 int qpStride; ///<size of qp buffers (needed to realloc them if needed) 161 int stride; ///<size of some buffers (needed to realloc them if needed) 162 163 int hChromaSubSample; 164 int vChromaSubSample; 165 166 PPMode ppMode; 167} PPContext; 168 169 170static inline void linecpy(void *dest, const void *src, int lines, int stride) { 171 if (stride > 0) { 172 memcpy(dest, src, lines*stride); 173 } else { 174 memcpy((uint8_t*)dest+(lines-1)*stride, (const uint8_t*)src+(lines-1)*stride, -lines*stride); 175 } 176} 177 178#endif /* POSTPROC_POSTPROCESS_INTERNAL_H */ 179