Make the av_class member of PPContext a poiner to constant AVClass.
[libav.git] / libpostproc / postprocess_internal.h
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c41d972d 1/*
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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 */
c41d972d 20
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21/**
22 * @file postprocess_internal.h
23 * internal api header.
24 */
25
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26#ifndef FFMPEG_POSTPROCESS_INTERNAL_H
27#define FFMPEG_POSTPROCESS_INTERNAL_H
699b3f99 28
6ab6c7c3 29#include "avutil.h"
53eecfde 30#include "postprocess.h"
6ab6c7c3 31
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32#define V_DEBLOCK 0x01
33#define H_DEBLOCK 0x02
34#define DERING 0x04
35#define LEVEL_FIX 0x08 ///< Brightness & Contrast
36
37#define LUM_V_DEBLOCK V_DEBLOCK // 1
38#define LUM_H_DEBLOCK H_DEBLOCK // 2
39#define CHROM_V_DEBLOCK (V_DEBLOCK<<4) // 16
40#define CHROM_H_DEBLOCK (H_DEBLOCK<<4) // 32
41#define LUM_DERING DERING // 4
42#define CHROM_DERING (DERING<<4) // 64
43#define LUM_LEVEL_FIX LEVEL_FIX // 8
44#define CHROM_LEVEL_FIX (LEVEL_FIX<<4) // 128 (not implemented yet)
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45
46// Experimental vertical filters
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47#define V_X1_FILTER 0x0200 // 512
48#define V_A_DEBLOCK 0x0400
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49
50// Experimental horizontal filters
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51#define H_X1_FILTER 0x2000 // 8192
52#define H_A_DEBLOCK 0x4000
c41d972d 53
b304569a 54/// select between full y range (255-0) or standart one (234-16)
bb270c08 55#define FULL_Y_RANGE 0x8000 // 32768
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56
57//Deinterlacing Filters
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58#define LINEAR_IPOL_DEINT_FILTER 0x10000 // 65536
59#define LINEAR_BLEND_DEINT_FILTER 0x20000 // 131072
60#define CUBIC_BLEND_DEINT_FILTER 0x8000 // (not implemented yet)
61#define CUBIC_IPOL_DEINT_FILTER 0x40000 // 262144
62#define MEDIAN_DEINT_FILTER 0x80000 // 524288
63#define FFMPEG_DEINT_FILTER 0x400000
64#define LOWPASS5_DEINT_FILTER 0x800000
c41d972d 65
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66#define TEMP_NOISE_FILTER 0x100000
67#define FORCE_QUANT 0x200000
c41d972d 68
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69#if ( defined(__PIC__) || defined(__pic__) ) && ! defined(PIC)
70# define PIC
71#endif
72
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73//use if you want a faster postprocessing code
74//cannot differentiate between chroma & luma filters (both on or both off)
75//obviously the -pp option on the command line has no effect except turning the here selected
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76//filters on
77//#define COMPILE_TIME_MODE 0x77
78
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79#if 1
80static inline int CLIP(int a){
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81 if(a&256) return ((a)>>31)^(-1);
82 else return a;
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83}
84//#define CLIP(a) (((a)&256) ? ((a)>>31)^(-1) : (a))
85#elif 0
86#define CLIP(a) clip_tab[a]
87#else
88#define CLIP(a) (a)
89#endif
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90/**
91 * Postprocessng filter.
92 */
c41d972d 93struct PPFilter{
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94 const char *shortName;
95 const char *longName;
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96 int chromDefault; ///< is chrominance filtering on by default if this filter is manually activated
97 int minLumQuality; ///< minimum quality to turn luminance filtering on
98 int minChromQuality; ///< minimum quality to turn chrominance filtering on
99 int mask; ///< Bitmask to turn this filter on
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100};
101
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102/**
103 * Postprocessng mode.
104 */
c41d972d 105typedef struct PPMode{
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106 int lumMode; ///< acivates filters for luminance
107 int chromMode; ///< acivates filters for chrominance
108 int error; ///< non zero on error
c41d972d 109
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110 int minAllowedY; ///< for brigtness correction
111 int maxAllowedY; ///< for brihtness correction
112 float maxClippedThreshold; ///< amount of "black" u r willing to loose to get a brightness corrected picture
c41d972d 113
bb270c08 114 int maxTmpNoise[3]; ///< for Temporal Noise Reducing filter (Maximal sum of abs differences)
c41d972d 115
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116 int baseDcDiff;
117 int flatnessThreshold;
c41d972d 118
bb270c08 119 int forcedQuant; ///< quantizer if FORCE_QUANT is used
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120} PPMode;
121
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122/**
123 * postprocess context.
124 */
c41d972d 125typedef struct PPContext{
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126 /**
127 * info on struct for av_log
128 */
31bfd6f3 129 const AVClass *av_class;
e7becfb2 130
bb270c08 131 uint8_t *tempBlocks; ///<used for the horizontal code
c41d972d 132
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133 /**
134 * luma histogram.
135 * we need 64bit here otherwise we'll going to have a problem
136 * after watching a black picture for 5 hours
137 */
138 uint64_t *yHistogram;
c41d972d 139
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140 DECLARE_ALIGNED(8, uint64_t, packedYOffset);
141 DECLARE_ALIGNED(8, uint64_t, packedYScale);
c41d972d 142
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143 /** Temporal noise reducing buffers */
144 uint8_t *tempBlured[3];
145 int32_t *tempBluredPast[3];
c41d972d 146
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147 /** Temporary buffers for handling the last row(s) */
148 uint8_t *tempDst;
149 uint8_t *tempSrc;
c41d972d 150
bb270c08 151 uint8_t *deintTemp;
c41d972d 152
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153 DECLARE_ALIGNED(8, uint64_t, pQPb);
154 DECLARE_ALIGNED(8, uint64_t, pQPb2);
c41d972d 155
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156 DECLARE_ALIGNED(8, uint64_t, mmxDcOffset[64]);
157 DECLARE_ALIGNED(8, uint64_t, mmxDcThreshold[64]);
88c0bc7e 158
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159 QP_STORE_T *stdQPTable; ///< used to fix MPEG2 style qscale
160 QP_STORE_T *nonBQPTable;
161 QP_STORE_T *forcedQPTable;
88c0bc7e 162
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163 int QP;
164 int nonBQP;
c41d972d 165
bb270c08 166 int frameNum;
115329f1 167
bb270c08 168 int cpuCaps;
115329f1 169
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170 int qpStride; ///<size of qp buffers (needed to realloc them if needed)
171 int stride; ///<size of some buffers (needed to realloc them if needed)
115329f1 172
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173 int hChromaSubSample;
174 int vChromaSubSample;
c41d972d 175
bb270c08 176 PPMode ppMode;
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177} PPContext;
178
0426af31 179
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180static inline void linecpy(void *dest, void *src, int lines, int stride)
181{
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182 if (stride > 0) {
183 memcpy(dest, src, lines*stride);
184 } else {
185 memcpy(dest+(lines-1)*stride, src+(lines-1)*stride, -lines*stride);
186 }
655f688d 187}
699b3f99 188
5b21bdab 189#endif /* FFMPEG_POSTPROCESS_INTERNAL_H */