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