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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 "libavcodec/dsputil.h"
28 #include "transform.h"
29 #if CONFIG_OPENCL
30 #include "libavutil/opencl.h"
31 #endif
32 
33 
35  EXHAUSTIVE, ///< Search all possible positions
36  SMART_EXHAUSTIVE, ///< Search most possible positions (faster)
38 };
39 
40 typedef struct {
41  int x; ///< Horizontal shift
42  int y; ///< Vertical shift
44 
45 typedef struct {
46  double x; ///< Horizontal shift
47  double y; ///< Vertical shift
48 } MotionVector;
49 
50 typedef struct {
51  MotionVector vector; ///< Motion vector
52  double angle; ///< Angle of rotation
53  double zoom; ///< Zoom percentage
54 } Transform;
55 
56 #if CONFIG_OPENCL
57 
58 typedef struct {
59  cl_command_queue command_queue;
60  cl_program program;
61  cl_kernel kernel_luma;
62  cl_kernel kernel_chroma;
63  int in_plane_size[8];
64  int out_plane_size[8];
65  int plane_num;
66  cl_mem cl_inbuf;
67  size_t cl_inbuf_size;
68  cl_mem cl_outbuf;
69  size_t cl_outbuf_size;
70 } DeshakeOpenclContext;
71 
72 #endif
73 
74 typedef struct {
75  const AVClass *class;
76  AVFrame *ref; ///< Previous frame
77  int rx; ///< Maximum horizontal shift
78  int ry; ///< Maximum vertical shift
79  int edge; ///< Edge fill method
80  int blocksize; ///< Size of blocks to compare
81  int contrast; ///< Contrast threshold
82  int search; ///< Motion search method
84  DSPContext c; ///< Context providing optimized SAD methods
85  Transform last; ///< Transform from last frame
86  int refcount; ///< Number of reference frames (defines averaging window)
87  FILE *fp;
89  int cw; ///< Crop motion search to this box
90  int ch;
91  int cx;
92  int cy;
93  char *filename; ///< Motion search detailed log filename
94  int opencl;
95 #if CONFIG_OPENCL
96  DeshakeOpenclContext opencl_ctx;
97 #endif
98  int (* transform)(AVFilterContext *ctx, int width, int height, int cw, int ch,
99  const float *matrix_y, const float *matrix_uv, enum InterpolateMethod interpolate,
100  enum FillMethod fill, AVFrame *in, AVFrame *out);
102 
103 #endif /* AVFILTER_DESHAKE_H */