/* * Copyright (C) 2013 Wei Gao <weigao@multicorewareinc.com> * 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 */ #ifndef AVFILTER_DESHAKE_H #define AVFILTER_DESHAKE_H #include "config.h" #include "avfilter.h" #include "transform.h" #include "libavutil/pixelutils.h" 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; #define MAX_R 64 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; #endif /* AVFILTER_DESHAKE_H */