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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 | #if CONFIG_OPENCL | |
30 | #include "libavutil/opencl.h" | |
31 | #endif | |
32 | ||
33 | ||
34 | enum SearchMethod { | |
35 | EXHAUSTIVE, ///< Search all possible positions | |
36 | SMART_EXHAUSTIVE, ///< Search most possible positions (faster) | |
37 | SEARCH_COUNT | |
38 | }; | |
39 | ||
40 | typedef struct { | |
41 | int x; ///< Horizontal shift | |
42 | int y; ///< Vertical shift | |
43 | } IntMotionVector; | |
44 | ||
45 | typedef struct { | |
46 | double x; ///< Horizontal shift | |
47 | double y; ///< Vertical shift | |
48 | } MotionVector; | |
49 | ||
50 | typedef struct { | |
51 | MotionVector vec; ///< 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 | #define MAX_R 64 | |
75 | ||
76 | typedef struct { | |
77 | const AVClass *class; | |
78 | int counts[2*MAX_R+1][2*MAX_R+1]; /// < Scratch buffer for motion search | |
79 | double *angles; ///< Scratch buffer for block angles | |
80 | unsigned angles_size; | |
81 | AVFrame *ref; ///< Previous frame | |
82 | int rx; ///< Maximum horizontal shift | |
83 | int ry; ///< Maximum vertical shift | |
84 | int edge; ///< Edge fill method | |
85 | int blocksize; ///< Size of blocks to compare | |
86 | int contrast; ///< Contrast threshold | |
87 | int search; ///< Motion search method | |
88 | av_pixelutils_sad_fn sad; ///< Sum of the absolute difference function | |
89 | Transform last; ///< Transform from last frame | |
90 | int refcount; ///< Number of reference frames (defines averaging window) | |
91 | FILE *fp; | |
92 | Transform avg; | |
93 | int cw; ///< Crop motion search to this box | |
94 | int ch; | |
95 | int cx; | |
96 | int cy; | |
97 | char *filename; ///< Motion search detailed log filename | |
98 | int opencl; | |
99 | #if CONFIG_OPENCL | |
100 | DeshakeOpenclContext opencl_ctx; | |
101 | #endif | |
102 | int (* transform)(AVFilterContext *ctx, int width, int height, int cw, int ch, | |
103 | const float *matrix_y, const float *matrix_uv, enum InterpolateMethod interpolate, | |
104 | enum FillMethod fill, AVFrame *in, AVFrame *out); | |
105 | } DeshakeContext; | |
106 | ||
107 | #endif /* AVFILTER_DESHAKE_H */ |