| 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 */ |