Reportedly FFmpeg fails to compile on Cygwin with vhook enabled, but FFserver
[libav.git] / libavcodec / 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
16 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17*/
18
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19/**
20 * @file postprocess_internal.h
21 * internal api header.
22 */
23
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24#define V_DEBLOCK 0x01
25#define H_DEBLOCK 0x02
26#define DERING 0x04
b304569a 27#define LEVEL_FIX 0x08 ///< Brightness & Contrast
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28
29#define LUM_V_DEBLOCK V_DEBLOCK // 1
30#define LUM_H_DEBLOCK H_DEBLOCK // 2
31#define CHROM_V_DEBLOCK (V_DEBLOCK<<4) // 16
32#define CHROM_H_DEBLOCK (H_DEBLOCK<<4) // 32
33#define LUM_DERING DERING // 4
34#define CHROM_DERING (DERING<<4) // 64
35#define LUM_LEVEL_FIX LEVEL_FIX // 8
36#define CHROM_LEVEL_FIX (LEVEL_FIX<<4) // 128 (not implemented yet)
37
38// Experimental vertical filters
39#define V_X1_FILTER 0x0200 // 512
12eebd26 40#define V_A_DEBLOCK 0x0400
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41
42// Experimental horizontal filters
43#define H_X1_FILTER 0x2000 // 8192
12eebd26 44#define H_A_DEBLOCK 0x4000
c41d972d 45
b304569a 46/// select between full y range (255-0) or standart one (234-16)
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47#define FULL_Y_RANGE 0x8000 // 32768
48
49//Deinterlacing Filters
50#define LINEAR_IPOL_DEINT_FILTER 0x10000 // 65536
51#define LINEAR_BLEND_DEINT_FILTER 0x20000 // 131072
52#define CUBIC_BLEND_DEINT_FILTER 0x8000 // (not implemented yet)
53#define CUBIC_IPOL_DEINT_FILTER 0x40000 // 262144
54#define MEDIAN_DEINT_FILTER 0x80000 // 524288
55#define FFMPEG_DEINT_FILTER 0x400000
134eb1e5 56#define LOWPASS5_DEINT_FILTER 0x800000
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57
58#define TEMP_NOISE_FILTER 0x100000
59#define FORCE_QUANT 0x200000
60
61//use if u want a faster postprocessing code
62//cant differentiate between chroma & luma filters (both on or both off)
63//obviosly the -pp option at the commandline has no effect except turning the here selected
64//filters on
65//#define COMPILE_TIME_MODE 0x77
66
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67#if 1
68static inline int CLIP(int a){
69 if(a&256) return ((a)>>31)^(-1);
70 else return a;
71}
72//#define CLIP(a) (((a)&256) ? ((a)>>31)^(-1) : (a))
73#elif 0
74#define CLIP(a) clip_tab[a]
75#else
76#define CLIP(a) (a)
77#endif
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78/**
79 * Postprocessng filter.
80 */
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81struct PPFilter{
82 char *shortName;
83 char *longName;
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84 int chromDefault; ///< is chrominance filtering on by default if this filter is manually activated
85 int minLumQuality; ///< minimum quality to turn luminance filtering on
86 int minChromQuality; ///< minimum quality to turn chrominance filtering on
87 int mask; ///< Bitmask to turn this filter on
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88};
89
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90/**
91 * Postprocessng mode.
92 */
c41d972d 93typedef struct PPMode{
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94 int lumMode; ///< acivates filters for luminance
95 int chromMode; ///< acivates filters for chrominance
96 int error; ///< non zero on error
c41d972d 97
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98 int minAllowedY; ///< for brigtness correction
99 int maxAllowedY; ///< for brihtness correction
100 float maxClippedThreshold; ///< amount of "black" u r willing to loose to get a brightness corrected picture
c41d972d 101
b304569a 102 int maxTmpNoise[3]; ///< for Temporal Noise Reducing filter (Maximal sum of abs differences)
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103
104 int baseDcDiff;
105 int flatnessThreshold;
106
b304569a 107 int forcedQuant; ///< quantizer if FORCE_QUANT is used
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108} PPMode;
109
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110/**
111 * postprocess context.
112 */
c41d972d 113typedef struct PPContext{
b304569a 114 uint8_t *tempBlocks; ///<used for the horizontal code
c41d972d 115
b304569a 116 /**
115329f1 117 * luma histogram.
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118 * we need 64bit here otherwise we'll going to have a problem
119 * after watching a black picture for 5 hours
120 */
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121 uint64_t *yHistogram;
122
123 uint64_t __attribute__((aligned(8))) packedYOffset;
124 uint64_t __attribute__((aligned(8))) packedYScale;
125
b304569a 126 /** Temporal noise reducing buffers */
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127 uint8_t *tempBlured[3];
128 int32_t *tempBluredPast[3];
129
b304569a 130 /** Temporary buffers for handling the last row(s) */
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131 uint8_t *tempDst;
132 uint8_t *tempSrc;
133
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134 uint8_t *deintTemp;
135
136 uint64_t __attribute__((aligned(8))) pQPb;
137 uint64_t __attribute__((aligned(8))) pQPb2;
138
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139 uint64_t __attribute__((aligned(8))) mmxDcOffset[64];
140 uint64_t __attribute__((aligned(8))) mmxDcThreshold[64];
88c0bc7e 141
0426af31 142 QP_STORE_T *stdQPTable; ///< used to fix MPEG2 style qscale
c41d972d 143 QP_STORE_T *nonBQPTable;
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144 QP_STORE_T *forcedQPTable;
145
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146 int QP;
147 int nonBQP;
148
149 int frameNum;
115329f1 150
c41d972d 151 int cpuCaps;
115329f1 152
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153 int qpStride; ///<size of qp buffers (needed to realloc them if needed)
154 int stride; ///<size of some buffers (needed to realloc them if needed)
115329f1 155
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156 int hChromaSubSample;
157 int vChromaSubSample;
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158
159 PPMode ppMode;
160} PPContext;
161
0426af31 162
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163static inline void linecpy(void *dest, void *src, int lines, int stride)
164{
165 if (stride > 0) {
166 memcpy(dest, src, lines*stride);
167 } else {
168 memcpy(dest+(lines-1)*stride, src+(lines-1)*stride, -lines*stride);
169 }
170}