Update lavu minor and add APIchanges entry after r24174 (add bswap.h
[libav.git] / libpostproc / postprocess_internal.h
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
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
76 static inline int CLIP(int a){
77 if(a&256) return ((a)>>31)^(-1);
78 else return a;
79 }
80 /**
81 * Postprocessng filter.
82 */
83 struct 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 */
95 typedef 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 */
115 typedef 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
170 static 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 */