FFmpeg
Main Page
Related Pages
Modules
Namespaces
Data Structures
Files
Examples
File List
Globals
All
Data Structures
Namespaces
Files
Functions
Variables
Typedefs
Enumerations
Enumerator
Macros
Groups
Pages
libpostproc
postprocess_internal.h
Go to the documentation of this file.
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 "
postprocess.h
"
34
35
#define V_DEBLOCK 0x01
36
#define H_DEBLOCK 0x02
37
#define DERING 0x04
38
#define LEVEL_FIX 0x08
///< Brightness & Contrast
39
40
#define LUM_V_DEBLOCK V_DEBLOCK // 1
41
#define LUM_H_DEBLOCK H_DEBLOCK // 2
42
#define CHROM_V_DEBLOCK (V_DEBLOCK<<4) // 16
43
#define CHROM_H_DEBLOCK (H_DEBLOCK<<4) // 32
44
#define LUM_DERING DERING // 4
45
#define CHROM_DERING (DERING<<4) // 64
46
#define LUM_LEVEL_FIX LEVEL_FIX // 8
47
#define CHROM_LEVEL_FIX (LEVEL_FIX<<4) // 128 (not implemented yet)
48
49
// Experimental vertical filters
50
#define V_X1_FILTER 0x0200 // 512
51
#define V_A_DEBLOCK 0x0400
52
53
// Experimental horizontal filters
54
#define H_X1_FILTER 0x2000 // 8192
55
#define H_A_DEBLOCK 0x4000
56
57
/// select between full y range (255-0) or standard one (234-16)
58
#define FULL_Y_RANGE 0x8000 // 32768
59
60
//Deinterlacing Filters
61
#define LINEAR_IPOL_DEINT_FILTER 0x10000 // 65536
62
#define LINEAR_BLEND_DEINT_FILTER 0x20000 // 131072
63
#define CUBIC_BLEND_DEINT_FILTER 0x8000 // (not implemented yet)
64
#define CUBIC_IPOL_DEINT_FILTER 0x40000 // 262144
65
#define MEDIAN_DEINT_FILTER 0x80000 // 524288
66
#define FFMPEG_DEINT_FILTER 0x400000
67
#define LOWPASS5_DEINT_FILTER 0x800000
68
69
#define TEMP_NOISE_FILTER 0x100000
70
#define FORCE_QUANT 0x200000
71
#define BITEXACT 0x1000000
72
73
//use if you want a faster postprocessing code
74
//cannot differentiate between chroma & luma filters (both on or both off)
75
//obviously the -pp option on the command line has no effect except turning the here selected
76
//filters on
77
//#define COMPILE_TIME_MODE 0x77
78
79
#define CLIP av_clip_uint8
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
float
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
(8, uint64_t,
mmxDcOffset
)[64];
148
DECLARE_ALIGNED
(8, uint64_t,
mmxDcThreshold
)[64];
149
150
QP_STORE_T
*
stdQPTable
;
///< used to fix MPEG2 style qscale
151
QP_STORE_T
*
nonBQPTable
;
152
QP_STORE_T
*
forcedQPTable
;
153
154
int
QP
;
155
int
nonBQP
;
156
157
int
frameNum
;
158
159
int
cpuCaps
;
160
161
int
qpStride
;
///<size of qp buffers (needed to realloc them if needed)
162
int
stride
;
///<size of some buffers (needed to realloc them if needed)
163
164
int
hChromaSubSample
;
165
int
vChromaSubSample
;
166
167
PPMode
ppMode
;
168
}
PPContext
;
169
170
171
static
inline
void
linecpy
(
void
*dest,
const
void
*
src
,
int
lines,
int
stride
) {
172
if
(stride > 0) {
173
memcpy(dest, src, lines*stride);
174
}
else
{
175
memcpy((
uint8_t
*)dest+(lines-1)*stride, (
const
uint8_t
*)src+(lines-1)*stride, -lines*stride);
176
}
177
}
178
179
#endif
/* POSTPROC_POSTPROCESS_INTERNAL_H */
Generated on Sat Jan 25 2014 19:52:07 for FFmpeg by
1.8.2