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[libav.git] / libpostproc / postprocess_internal.h
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1/*
2 Copyright (C) 2001-2002 Michael Niedermayer (michaelni@gmx.at)
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
5509bffa 16 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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17*/
18
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19/**
20 * @file postprocess_internal.h
21 * internal api header.
22 */
23
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24#include "avutil.h"
25
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26#define V_DEBLOCK 0x01
27#define H_DEBLOCK 0x02
28#define DERING 0x04
29#define LEVEL_FIX 0x08 ///< Brightness & Contrast
30
31#define LUM_V_DEBLOCK V_DEBLOCK // 1
32#define LUM_H_DEBLOCK H_DEBLOCK // 2
33#define CHROM_V_DEBLOCK (V_DEBLOCK<<4) // 16
34#define CHROM_H_DEBLOCK (H_DEBLOCK<<4) // 32
35#define LUM_DERING DERING // 4
36#define CHROM_DERING (DERING<<4) // 64
37#define LUM_LEVEL_FIX LEVEL_FIX // 8
38#define CHROM_LEVEL_FIX (LEVEL_FIX<<4) // 128 (not implemented yet)
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39
40// Experimental vertical filters
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41#define V_X1_FILTER 0x0200 // 512
42#define V_A_DEBLOCK 0x0400
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43
44// Experimental horizontal filters
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45#define H_X1_FILTER 0x2000 // 8192
46#define H_A_DEBLOCK 0x4000
c41d972d 47
b304569a 48/// select between full y range (255-0) or standart one (234-16)
bb270c08 49#define FULL_Y_RANGE 0x8000 // 32768
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50
51//Deinterlacing Filters
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52#define LINEAR_IPOL_DEINT_FILTER 0x10000 // 65536
53#define LINEAR_BLEND_DEINT_FILTER 0x20000 // 131072
54#define CUBIC_BLEND_DEINT_FILTER 0x8000 // (not implemented yet)
55#define CUBIC_IPOL_DEINT_FILTER 0x40000 // 262144
56#define MEDIAN_DEINT_FILTER 0x80000 // 524288
57#define FFMPEG_DEINT_FILTER 0x400000
58#define LOWPASS5_DEINT_FILTER 0x800000
c41d972d 59
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60#define TEMP_NOISE_FILTER 0x100000
61#define FORCE_QUANT 0x200000
c41d972d 62
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63#if ( defined(__PIC__) || defined(__pic__) ) && ! defined(PIC)
64# define PIC
65#endif
66
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67//use if u want a faster postprocessing code
68//cant differentiate between chroma & luma filters (both on or both off)
69//obviosly the -pp option at the commandline has no effect except turning the here selected
70//filters on
71//#define COMPILE_TIME_MODE 0x77
72
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73#if 1
74static inline int CLIP(int a){
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75 if(a&256) return ((a)>>31)^(-1);
76 else return a;
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77}
78//#define CLIP(a) (((a)&256) ? ((a)>>31)^(-1) : (a))
79#elif 0
80#define CLIP(a) clip_tab[a]
81#else
82#define CLIP(a) (a)
83#endif
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84/**
85 * Postprocessng filter.
86 */
c41d972d 87struct PPFilter{
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88 const char *shortName;
89 const char *longName;
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90 int chromDefault; ///< is chrominance filtering on by default if this filter is manually activated
91 int minLumQuality; ///< minimum quality to turn luminance filtering on
92 int minChromQuality; ///< minimum quality to turn chrominance filtering on
93 int mask; ///< Bitmask to turn this filter on
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94};
95
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96/**
97 * Postprocessng mode.
98 */
c41d972d 99typedef struct PPMode{
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100 int lumMode; ///< acivates filters for luminance
101 int chromMode; ///< acivates filters for chrominance
102 int error; ///< non zero on error
c41d972d 103
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104 int minAllowedY; ///< for brigtness correction
105 int maxAllowedY; ///< for brihtness correction
106 float maxClippedThreshold; ///< amount of "black" u r willing to loose to get a brightness corrected picture
c41d972d 107
bb270c08 108 int maxTmpNoise[3]; ///< for Temporal Noise Reducing filter (Maximal sum of abs differences)
c41d972d 109
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110 int baseDcDiff;
111 int flatnessThreshold;
c41d972d 112
bb270c08 113 int forcedQuant; ///< quantizer if FORCE_QUANT is used
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114} PPMode;
115
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116/**
117 * postprocess context.
118 */
c41d972d 119typedef struct PPContext{
bb270c08 120 uint8_t *tempBlocks; ///<used for the horizontal code
c41d972d 121
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122 /**
123 * luma histogram.
124 * we need 64bit here otherwise we'll going to have a problem
125 * after watching a black picture for 5 hours
126 */
127 uint64_t *yHistogram;
c41d972d 128
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129 DECLARE_ALIGNED(8, uint64_t, packedYOffset);
130 DECLARE_ALIGNED(8, uint64_t, packedYScale);
c41d972d 131
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132 /** Temporal noise reducing buffers */
133 uint8_t *tempBlured[3];
134 int32_t *tempBluredPast[3];
c41d972d 135
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136 /** Temporary buffers for handling the last row(s) */
137 uint8_t *tempDst;
138 uint8_t *tempSrc;
c41d972d 139
bb270c08 140 uint8_t *deintTemp;
c41d972d 141
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142 DECLARE_ALIGNED(8, uint64_t, pQPb);
143 DECLARE_ALIGNED(8, uint64_t, pQPb2);
c41d972d 144
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145 DECLARE_ALIGNED(8, uint64_t, mmxDcOffset[64]);
146 DECLARE_ALIGNED(8, uint64_t, mmxDcThreshold[64]);
88c0bc7e 147
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148 QP_STORE_T *stdQPTable; ///< used to fix MPEG2 style qscale
149 QP_STORE_T *nonBQPTable;
150 QP_STORE_T *forcedQPTable;
88c0bc7e 151
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152 int QP;
153 int nonBQP;
c41d972d 154
bb270c08 155 int frameNum;
115329f1 156
bb270c08 157 int cpuCaps;
115329f1 158
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159 int qpStride; ///<size of qp buffers (needed to realloc them if needed)
160 int stride; ///<size of some buffers (needed to realloc them if needed)
115329f1 161
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162 int hChromaSubSample;
163 int vChromaSubSample;
c41d972d 164
bb270c08 165 PPMode ppMode;
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166} PPContext;
167
0426af31 168
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169static inline void linecpy(void *dest, void *src, int lines, int stride)
170{
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171 if (stride > 0) {
172 memcpy(dest, src, lines*stride);
173 } else {
174 memcpy(dest+(lines-1)*stride, src+(lines-1)*stride, -lines*stride);
175 }
655f688d 176}