FFmpeg
deshake.h
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1 /*
2  * Copyright (C) 2013 Wei Gao <weigao@multicorewareinc.com>
3  * Copyright (C) 2013 Lenny Wang
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #ifndef AVFILTER_DESHAKE_H
23 #define AVFILTER_DESHAKE_H
24 
25 #include "config.h"
26 #include "avfilter.h"
27 #include "transform.h"
28 #include "libavutil/pixelutils.h"
29 
30 
32  EXHAUSTIVE, ///< Search all possible positions
33  SMART_EXHAUSTIVE, ///< Search most possible positions (faster)
35 };
36 
37 typedef struct IntMotionVector {
38  int x; ///< Horizontal shift
39  int y; ///< Vertical shift
41 
42 typedef struct MotionVector {
43  double x; ///< Horizontal shift
44  double y; ///< Vertical shift
45 } MotionVector;
46 
47 typedef struct Transform {
48  MotionVector vec; ///< Motion vector
49  double angle; ///< Angle of rotation
50  double zoom; ///< Zoom percentage
51 } Transform;
52 
53 #define MAX_R 64
54 
55 typedef struct DeshakeContext {
56  const AVClass *class;
57  int counts[2*MAX_R+1][2*MAX_R+1]; /// < Scratch buffer for motion search
58  double *angles; ///< Scratch buffer for block angles
59  unsigned angles_size;
60  AVFrame *ref; ///< Previous frame
61  int rx; ///< Maximum horizontal shift
62  int ry; ///< Maximum vertical shift
63  int edge; ///< Edge fill method
64  int blocksize; ///< Size of blocks to compare
65  int contrast; ///< Contrast threshold
66  int search; ///< Motion search method
67  av_pixelutils_sad_fn sad; ///< Sum of the absolute difference function
68  Transform last; ///< Transform from last frame
69  int refcount; ///< Number of reference frames (defines averaging window)
70  FILE *fp;
72  int cw; ///< Crop motion search to this box
73  int ch;
74  int cx;
75  int cy;
76  char *filename; ///< Motion search detailed log filename
77  int opencl;
78  int (* transform)(AVFilterContext *ctx, int width, int height, int cw, int ch,
79  const float *matrix_y, const float *matrix_uv, enum InterpolateMethod interpolate,
80  enum FillMethod fill, AVFrame *in, AVFrame *out);
82 
83 #endif /* AVFILTER_DESHAKE_H */
MAX_R
#define MAX_R
Definition: deshake.h:53
SMART_EXHAUSTIVE
@ SMART_EXHAUSTIVE
Search most possible positions (faster)
Definition: deshake.h:33
DeshakeContext::ry
int ry
Maximum vertical shift.
Definition: deshake.h:62
out
FILE * out
Definition: movenc.c:54
IntMotionVector::y
int y
Vertical shift.
Definition: deshake.h:39
SearchMethod
SearchMethod
Definition: deshake.h:31
MotionVector::x
double x
Horizontal shift.
Definition: deshake.h:43
av_pixelutils_sad_fn
int(* av_pixelutils_sad_fn)(const uint8_t *src1, ptrdiff_t stride1, const uint8_t *src2, ptrdiff_t stride2)
Sum of abs(src1[x] - src2[x])
Definition: pixelutils.h:29
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:303
DeshakeContext::angles_size
unsigned angles_size
Definition: deshake.h:59
DeshakeContext::transform
int(* transform)(AVFilterContext *ctx, int width, int height, int cw, int ch, const float *matrix_y, const float *matrix_uv, enum InterpolateMethod interpolate, enum FillMethod fill, AVFrame *in, AVFrame *out)
Definition: deshake.h:78
InterpolateMethod
InterpolateMethod
Definition: transform.h:39
DeshakeContext::blocksize
int blocksize
Size of blocks to compare.
Definition: deshake.h:64
DeshakeContext::last
Transform last
Transform from last frame.
Definition: deshake.h:68
DeshakeContext::ch
int ch
Definition: deshake.h:73
DeshakeContext::opencl
int opencl
Definition: deshake.h:77
Transform::vec
MotionVector vec
Motion vector.
Definition: deshake.h:48
width
#define width
DeshakeContext::refcount
int refcount
Number of reference frames (defines averaging window)
Definition: deshake.h:69
DeshakeContext::avg
Transform avg
Definition: deshake.h:71
Transform::zoom
double zoom
Zoom percentage.
Definition: deshake.h:50
DeshakeContext::ref
AVFrame * ref
Previous frame.
Definition: deshake.h:60
ctx
AVFormatContext * ctx
Definition: movenc.c:48
DeshakeContext::filename
char * filename
Motion search detailed log filename.
Definition: deshake.h:76
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
DeshakeContext::cx
int cx
Definition: deshake.h:74
DeshakeContext::cw
int cw
Crop motion search to this box.
Definition: deshake.h:72
MotionVector::y
double y
Vertical shift.
Definition: deshake.h:44
DeshakeContext::counts
int counts[2 *MAX_R+1][2 *MAX_R+1]
Definition: deshake.h:57
pixelutils.h
DeshakeContext::angles
double * angles
< Scratch buffer for motion search
Definition: deshake.h:58
height
#define height
MotionVector
Definition: agm.c:56
interpolate
static void interpolate(float *out, float v1, float v2, int size)
Definition: twinvq.c:84
SEARCH_COUNT
@ SEARCH_COUNT
Definition: deshake.h:34
DeshakeContext::contrast
int contrast
Contrast threshold.
Definition: deshake.h:65
Transform::angle
double angle
Angle of rotation.
Definition: deshake.h:49
DeshakeContext::search
int search
Motion search method.
Definition: deshake.h:66
EXHAUSTIVE
@ EXHAUSTIVE
Search all possible positions.
Definition: deshake.h:32
transform.h
DeshakeContext::edge
int edge
Edge fill method.
Definition: deshake.h:63
Transform
Definition: deshake.h:47
avfilter.h
DeshakeContext::fp
FILE * fp
Definition: deshake.h:70
AVFilterContext
An instance of a filter.
Definition: avfilter.h:386
DeshakeContext::rx
int rx
Maximum horizontal shift.
Definition: deshake.h:61
FillMethod
FillMethod
Definition: transform.h:51
DeshakeContext
Definition: deshake.h:55
DeshakeContext::cy
int cy
Definition: deshake.h:75
int
int
Definition: ffmpeg_filter.c:156
IntMotionVector::x
int x
Horizontal shift.
Definition: deshake.h:38
IntMotionVector
Definition: deshake.h:37
DeshakeContext::sad
av_pixelutils_sad_fn sad
Sum of the absolute difference function.
Definition: deshake.h:67