Make ffmpeg better support pic - from Diego Pettenò <flameeyes@gentoo.org>
[libav.git] / libpostproc / postprocess_internal.h
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 /**
20 * @file postprocess_internal.h
21 * internal api header.
22 */
23
24 #define V_DEBLOCK 0x01
25 #define H_DEBLOCK 0x02
26 #define DERING 0x04
27 #define LEVEL_FIX 0x08 ///< Brightness & Contrast
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
40 #define V_A_DEBLOCK 0x0400
41
42 // Experimental horizontal filters
43 #define H_X1_FILTER 0x2000 // 8192
44 #define H_A_DEBLOCK 0x4000
45
46 /// select between full y range (255-0) or standart one (234-16)
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
56 #define LOWPASS5_DEINT_FILTER 0x800000
57
58 #define TEMP_NOISE_FILTER 0x100000
59 #define FORCE_QUANT 0x200000
60
61 #if ( defined(__PIC__) || defined(__pic__) ) && ! defined(PIC)
62 # define PIC
63 #endif
64
65 //use if u want a faster postprocessing code
66 //cant differentiate between chroma & luma filters (both on or both off)
67 //obviosly the -pp option at the commandline has no effect except turning the here selected
68 //filters on
69 //#define COMPILE_TIME_MODE 0x77
70
71 #if 1
72 static inline int CLIP(int a){
73 if(a&256) return ((a)>>31)^(-1);
74 else return a;
75 }
76 //#define CLIP(a) (((a)&256) ? ((a)>>31)^(-1) : (a))
77 #elif 0
78 #define CLIP(a) clip_tab[a]
79 #else
80 #define CLIP(a) (a)
81 #endif
82 /**
83 * Postprocessng filter.
84 */
85 struct PPFilter{
86 const char *shortName;
87 const char *longName;
88 int chromDefault; ///< is chrominance filtering on by default if this filter is manually activated
89 int minLumQuality; ///< minimum quality to turn luminance filtering on
90 int minChromQuality; ///< minimum quality to turn chrominance filtering on
91 int mask; ///< Bitmask to turn this filter on
92 };
93
94 /**
95 * Postprocessng mode.
96 */
97 typedef struct PPMode{
98 int lumMode; ///< acivates filters for luminance
99 int chromMode; ///< acivates filters for chrominance
100 int error; ///< non zero on error
101
102 int minAllowedY; ///< for brigtness correction
103 int maxAllowedY; ///< for brihtness correction
104 float maxClippedThreshold; ///< amount of "black" u r willing to loose to get a brightness corrected picture
105
106 int maxTmpNoise[3]; ///< for Temporal Noise Reducing filter (Maximal sum of abs differences)
107
108 int baseDcDiff;
109 int flatnessThreshold;
110
111 int forcedQuant; ///< quantizer if FORCE_QUANT is used
112 } PPMode;
113
114 /**
115 * postprocess context.
116 */
117 typedef struct PPContext{
118 uint8_t *tempBlocks; ///<used for the horizontal code
119
120 /**
121 * luma histogram.
122 * we need 64bit here otherwise we'll going to have a problem
123 * after watching a black picture for 5 hours
124 */
125 uint64_t *yHistogram;
126
127 uint64_t __attribute__((aligned(8))) packedYOffset;
128 uint64_t __attribute__((aligned(8))) packedYScale;
129
130 /** Temporal noise reducing buffers */
131 uint8_t *tempBlured[3];
132 int32_t *tempBluredPast[3];
133
134 /** Temporary buffers for handling the last row(s) */
135 uint8_t *tempDst;
136 uint8_t *tempSrc;
137
138 uint8_t *deintTemp;
139
140 uint64_t __attribute__((aligned(8))) pQPb;
141 uint64_t __attribute__((aligned(8))) pQPb2;
142
143 uint64_t __attribute__((aligned(8))) mmxDcOffset[64];
144 uint64_t __attribute__((aligned(8))) mmxDcThreshold[64];
145
146 QP_STORE_T *stdQPTable; ///< used to fix MPEG2 style qscale
147 QP_STORE_T *nonBQPTable;
148 QP_STORE_T *forcedQPTable;
149
150 int QP;
151 int nonBQP;
152
153 int frameNum;
154
155 int cpuCaps;
156
157 int qpStride; ///<size of qp buffers (needed to realloc them if needed)
158 int stride; ///<size of some buffers (needed to realloc them if needed)
159
160 int hChromaSubSample;
161 int vChromaSubSample;
162
163 PPMode ppMode;
164 } PPContext;
165
166
167 static inline void linecpy(void *dest, void *src, int lines, int stride)
168 {
169 if (stride > 0) {
170 memcpy(dest, src, lines*stride);
171 } else {
172 memcpy(dest+(lines-1)*stride, src+(lines-1)*stride, -lines*stride);
173 }
174 }