/* * 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 */