1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
/*
* Copyright (C) 2001-2002 Michael Niedermayer (michaelni@gmx.at)
*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* internal api header.
*/
#ifndef POSTPROC_POSTPROCESS_INTERNAL_H
#define POSTPROC_POSTPROCESS_INTERNAL_H
#include <string.h>
#include "libavutil/avutil.h"
#include "libavutil/log.h"
#include "postprocess.h"
#define V_DEBLOCK 0x01
#define H_DEBLOCK 0x02
#define DERING 0x04
#define LEVEL_FIX 0x08 ///< Brightness & Contrast
#define LUM_V_DEBLOCK V_DEBLOCK // 1
#define LUM_H_DEBLOCK H_DEBLOCK // 2
#define CHROM_V_DEBLOCK (V_DEBLOCK<<4) // 16
#define CHROM_H_DEBLOCK (H_DEBLOCK<<4) // 32
#define LUM_DERING DERING // 4
#define CHROM_DERING (DERING<<4) // 64
#define LUM_LEVEL_FIX LEVEL_FIX // 8
#define CHROM_LEVEL_FIX (LEVEL_FIX<<4) // 128 (not implemented yet)
// Experimental vertical filters
#define V_X1_FILTER 0x0200 // 512
#define V_A_DEBLOCK 0x0400
// Experimental horizontal filters
#define H_X1_FILTER 0x2000 // 8192
#define H_A_DEBLOCK 0x4000
/// select between full y range (255-0) or standart one (234-16)
#define FULL_Y_RANGE 0x8000 // 32768
//Deinterlacing Filters
#define LINEAR_IPOL_DEINT_FILTER 0x10000 // 65536
#define LINEAR_BLEND_DEINT_FILTER 0x20000 // 131072
#define CUBIC_BLEND_DEINT_FILTER 0x8000 // (not implemented yet)
#define CUBIC_IPOL_DEINT_FILTER 0x40000 // 262144
#define MEDIAN_DEINT_FILTER 0x80000 // 524288
#define FFMPEG_DEINT_FILTER 0x400000
#define LOWPASS5_DEINT_FILTER 0x800000
#define TEMP_NOISE_FILTER 0x100000
#define FORCE_QUANT 0x200000
//use if you want a faster postprocessing code
//cannot differentiate between chroma & luma filters (both on or both off)
//obviously the -pp option on the command line has no effect except turning the here selected
//filters on
//#define COMPILE_TIME_MODE 0x77
static inline int CLIP(int a){
if(a&256) return ((a)>>31)^(-1);
else return a;
}
/**
* Postprocessng filter.
*/
struct PPFilter{
const char *shortName;
const char *longName;
int chromDefault; ///< is chrominance filtering on by default if this filter is manually activated
int minLumQuality; ///< minimum quality to turn luminance filtering on
int minChromQuality; ///< minimum quality to turn chrominance filtering on
int mask; ///< Bitmask to turn this filter on
};
/**
* Postprocessng mode.
*/
typedef struct PPMode{
int lumMode; ///< acivates filters for luminance
int chromMode; ///< acivates filters for chrominance
int error; ///< non zero on error
int minAllowedY; ///< for brigtness correction
int maxAllowedY; ///< for brihtness correction
float maxClippedThreshold; ///< amount of "black" you are willing to lose to get a brightness-corrected picture
int maxTmpNoise[3]; ///< for Temporal Noise Reducing filter (Maximal sum of abs differences)
int baseDcDiff;
int flatnessThreshold;
int forcedQuant; ///< quantizer if FORCE_QUANT is used
} PPMode;
/**
* postprocess context.
*/
typedef struct PPContext{
/**
* info on struct for av_log
*/
const AVClass *av_class;
uint8_t *tempBlocks; ///<used for the horizontal code
/**
* luma histogram.
* we need 64bit here otherwise we'll going to have a problem
* after watching a black picture for 5 hours
*/
uint64_t *yHistogram;
DECLARE_ALIGNED(8, uint64_t, packedYOffset);
DECLARE_ALIGNED(8, uint64_t, packedYScale);
/** Temporal noise reducing buffers */
uint8_t *tempBlurred[3];
int32_t *tempBlurredPast[3];
/** Temporary buffers for handling the last row(s) */
uint8_t *tempDst;
uint8_t *tempSrc;
uint8_t *deintTemp;
DECLARE_ALIGNED(8, uint64_t, pQPb);
DECLARE_ALIGNED(8, uint64_t, pQPb2);
DECLARE_ALIGNED(8, uint64_t, mmxDcOffset)[64];
DECLARE_ALIGNED(8, uint64_t, mmxDcThreshold)[64];
QP_STORE_T *stdQPTable; ///< used to fix MPEG2 style qscale
QP_STORE_T *nonBQPTable;
QP_STORE_T *forcedQPTable;
int QP;
int nonBQP;
int frameNum;
int cpuCaps;
int qpStride; ///<size of qp buffers (needed to realloc them if needed)
int stride; ///<size of some buffers (needed to realloc them if needed)
int hChromaSubSample;
int vChromaSubSample;
PPMode ppMode;
} PPContext;
static inline void linecpy(void *dest, const void *src, int lines, int stride) {
if (stride > 0) {
memcpy(dest, src, lines*stride);
} else {
memcpy((uint8_t*)dest+(lines-1)*stride, (const uint8_t*)src+(lines-1)*stride, -lines*stride);
}
}
#endif /* POSTPROC_POSTPROCESS_INTERNAL_H */
|
