Statistics
| Branch: | Revision:

ffmpeg / libpostproc / postprocess_internal.h @ 699b3f99

History | View | Annotate | Download (5.96 KB)

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