| /* | |
| * Copyright (C) 2013 Wei Gao <[email protected]> | |
| * Copyright (C) 2013 Lenny Wang | |
| * | |
| * This file is part of FFmpeg. | |
| * | |
| * FFmpeg is free software; you can redistribute it and/or | |
| * modify it under the terms of the GNU Lesser General Public | |
| * License as published by the Free Software Foundation; either | |
| * version 2.1 of the License, or (at your option) any later version. | |
| * | |
| * FFmpeg is distributed in the hope that it will be useful, | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| * Lesser General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU Lesser General Public | |
| * License along with FFmpeg; if not, write to the Free Software | |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| */ | |
| enum SearchMethod { | |
| EXHAUSTIVE, ///< Search all possible positions | |
| SMART_EXHAUSTIVE, ///< Search most possible positions (faster) | |
| SEARCH_COUNT | |
| }; | |
| typedef struct IntMotionVector { | |
| int x; ///< Horizontal shift | |
| int y; ///< Vertical shift | |
| } IntMotionVector; | |
| typedef struct MotionVector { | |
| double x; ///< Horizontal shift | |
| double y; ///< Vertical shift | |
| } MotionVector; | |
| typedef struct Transform { | |
| MotionVector vec; ///< Motion vector | |
| double angle; ///< Angle of rotation | |
| double zoom; ///< Zoom percentage | |
| } Transform; | |
| typedef struct DeshakeContext { | |
| const AVClass *class; | |
| int counts[2*MAX_R+1][2*MAX_R+1]; /// < Scratch buffer for motion search | |
| double *angles; ///< Scratch buffer for block angles | |
| unsigned angles_size; | |
| AVFrame *ref; ///< Previous frame | |
| int rx; ///< Maximum horizontal shift | |
| int ry; ///< Maximum vertical shift | |
| int edge; ///< Edge fill method | |
| int blocksize; ///< Size of blocks to compare | |
| int contrast; ///< Contrast threshold | |
| int search; ///< Motion search method | |
| av_pixelutils_sad_fn sad; ///< Sum of the absolute difference function | |
| Transform last; ///< Transform from last frame | |
| int refcount; ///< Number of reference frames (defines averaging window) | |
| FILE *fp; | |
| Transform avg; | |
| int cw; ///< Crop motion search to this box | |
| int ch; | |
| int cx; | |
| int cy; | |
| char *filename; ///< Motion search detailed log filename | |
| int opencl; | |
| 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); | |
| } DeshakeContext; | |