FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libpostproc/postprocess_internal.h
Date: 2024-11-20 23:03:26
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Lines: 4 5 80.0%
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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 "libavutil/intmath.h"
32 #include "libavutil/log.h"
33 #include "libavutil/mem_internal.h"
34 #include "postprocess.h"
35
36 #define V_DEBLOCK 0x01
37 #define H_DEBLOCK 0x02
38 #define DERING 0x04
39 #define LEVEL_FIX 0x08 ///< Brightness & Contrast
40
41 #define LUM_V_DEBLOCK V_DEBLOCK // 1
42 #define LUM_H_DEBLOCK H_DEBLOCK // 2
43 #define CHROM_V_DEBLOCK (V_DEBLOCK<<4) // 16
44 #define CHROM_H_DEBLOCK (H_DEBLOCK<<4) // 32
45 #define LUM_DERING DERING // 4
46 #define CHROM_DERING (DERING<<4) // 64
47 #define LUM_LEVEL_FIX LEVEL_FIX // 8
48 #define CHROM_LEVEL_FIX (LEVEL_FIX<<4) // 128 (not implemented yet)
49
50 // Experimental vertical filters
51 #define V_X1_FILTER 0x0200 // 512
52 #define V_A_DEBLOCK 0x0400
53
54 // Experimental horizontal filters
55 #define H_X1_FILTER 0x2000 // 8192
56 #define H_A_DEBLOCK 0x4000
57
58 /// select between full y range (255-0) or standard one (234-16)
59 #define FULL_Y_RANGE 0x8000 // 32768
60
61 //Deinterlacing Filters
62 #define LINEAR_IPOL_DEINT_FILTER 0x10000 // 65536
63 #define LINEAR_BLEND_DEINT_FILTER 0x20000 // 131072
64 #define CUBIC_BLEND_DEINT_FILTER 0x8000 // (not implemented yet)
65 #define CUBIC_IPOL_DEINT_FILTER 0x40000 // 262144
66 #define MEDIAN_DEINT_FILTER 0x80000 // 524288
67 #define FFMPEG_DEINT_FILTER 0x400000
68 #define LOWPASS5_DEINT_FILTER 0x800000
69
70 #define TEMP_NOISE_FILTER 0x100000
71 #define FORCE_QUANT 0x200000
72 #define BITEXACT 0x1000000
73 #define VISUALIZE 0x2000000
74
75 //use if you want a faster postprocessing code
76 //cannot differentiate between chroma & luma filters (both on or both off)
77 //obviously the -pp option on the command line has no effect except turning the here selected
78 //filters on
79 //#define COMPILE_TIME_MODE 0x77
80
81 /**
82 * Postprocessing filter.
83 */
84 struct PPFilter{
85 const char *shortName;
86 const char *longName;
87 int chromDefault; ///< is chrominance filtering on by default if this filter is manually activated
88 int minLumQuality; ///< minimum quality to turn luminance filtering on
89 int minChromQuality; ///< minimum quality to turn chrominance filtering on
90 int mask; ///< Bitmask to turn this filter on
91 };
92
93 /**
94 * Postprocessing mode.
95 */
96 typedef struct PPMode{
97 int lumMode; ///< activates filters for luminance
98 int chromMode; ///< activates filters for chrominance
99 int error; ///< non zero on error
100
101 int minAllowedY; ///< for brightness correction
102 int maxAllowedY; ///< for brightness correction
103 AVRational maxClippedThreshold; ///< amount of "black" you are willing to lose to get a brightness-corrected picture
104
105 int maxTmpNoise[3]; ///< for Temporal Noise Reducing filter (Maximal sum of abs differences)
106
107 int baseDcDiff;
108 int flatnessThreshold;
109
110 int forcedQuant; ///< quantizer if FORCE_QUANT is used
111 } PPMode;
112
113 /**
114 * postprocess context.
115 */
116 typedef struct PPContext{
117 /**
118 * info on struct for av_log
119 */
120 const AVClass *av_class;
121
122 uint8_t *tempBlocks; ///<used for the horizontal code
123
124 /**
125 * luma histogram.
126 * we need 64bit here otherwise we'll going to have a problem
127 * after watching a black picture for 5 hours
128 */
129 uint64_t *yHistogram;
130
131 DECLARE_ALIGNED(8, uint64_t, packedYOffset);
132 DECLARE_ALIGNED(8, uint64_t, packedYScale);
133
134 /** Temporal noise reducing buffers */
135 uint8_t *tempBlurred[3];
136 int32_t *tempBlurredPast[3];
137
138 /** Temporary buffers for handling the last row(s) */
139 uint8_t *tempDst;
140 uint8_t *tempSrc;
141
142 uint8_t *deintTemp;
143
144 DECLARE_ALIGNED(8, uint64_t, pQPb);
145 DECLARE_ALIGNED(8, uint64_t, pQPb2);
146
147 DECLARE_ALIGNED(32, uint64_t, pQPb_block)[4];
148 DECLARE_ALIGNED(32, uint64_t, pQPb2_block)[4];
149
150 DECLARE_ALIGNED(32, uint64_t, mmxDcOffset)[64];
151 DECLARE_ALIGNED(32, uint64_t, mmxDcThreshold)[64];
152
153 int8_t *stdQPTable; ///< used to fix MPEG2 style qscale
154 int8_t *nonBQPTable;
155 int8_t *forcedQPTable;
156
157 int QP;
158 int nonBQP;
159
160 DECLARE_ALIGNED(32, int, QP_block)[4];
161 DECLARE_ALIGNED(32, int, nonBQP_block)[4];
162
163 int frameNum;
164
165 int cpuCaps;
166
167 int qpStride; ///<size of qp buffers (needed to realloc them if needed)
168 int stride; ///<size of some buffers (needed to realloc them if needed)
169
170 int hChromaSubSample;
171 int vChromaSubSample;
172
173 PPMode ppMode;
174 } PPContext;
175
176
177 480 static inline void linecpy(void *dest, const void *src, int lines, int stride) {
178
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 480 if (stride > 0) {
179 480 memcpy(dest, src, lines*stride);
180 } else {
181 ✗ memcpy((uint8_t*)dest+(lines-1)*stride, (const uint8_t*)src+(lines-1)*stride, -lines*stride);
182 }
183 480 }
184
185 #endif /* POSTPROC_POSTPROCESS_INTERNAL_H */
186