FFmpeg
postprocess_internal.h
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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 
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  */
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) */
141 
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 
172 
174 } PPContext;
175 
176 
177 static inline void linecpy(void *dest, const void *src, int lines, int stride) {
178  if (stride > 0) {
179  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 }
184 
185 #endif /* POSTPROC_POSTPROCESS_INTERNAL_H */
const AVClass * av_class
info on struct for av_log
int chromMode
activates filters for chrominance
uint8_t * tempDst
Temporary buffers for handling the last row(s)
Convenience header that includes libavutil&#39;s core.
int8_t * forcedQPTable
uint8_t
int minAllowedY
for brightness correction
int qpStride
size of qp buffers (needed to realloc them if needed)
uint64_t * yHistogram
luma histogram.
#define DECLARE_ALIGNED(n, t, v)
Declare a variable that is aligned in memory.
Definition: mem.h:117
#define src
Definition: vp8dsp.c:255
int minLumQuality
minimum quality to turn luminance filtering on
int error
non zero on error
static void linecpy(void *dest, const void *src, int lines, int stride)
int forcedQuant
quantizer if FORCE_QUANT is used
int maxAllowedY
for brightness correction
int32_t
int minChromQuality
minimum quality to turn chrominance filtering on
int lumMode
activates filters for luminance
external API header
Postprocessing mode.
int8_t * stdQPTable
used to fix MPEG2 style qscale
uint8_t * tempBlocks
used for the horizontal code
Describe the class of an AVClass context structure.
Definition: log.h:67
Rational number (pair of numerator and denominator).
Definition: rational.h:58
const char * shortName
AVRational maxClippedThreshold
amount of "black" you are willing to lose to get a brightness-corrected picture
int chromDefault
is chrominance filtering on by default if this filter is manually activated
GLint GLenum GLboolean GLsizei stride
Definition: opengl_enc.c:104
uint8_t * deintTemp
const char * longName
int mask
Bitmask to turn this filter on.
Postprocessing filter.
postprocess context.
int stride
size of some buffers (needed to realloc them if needed)
int8_t * nonBQPTable