84 lines
3.0 KiB
C
84 lines
3.0 KiB
C
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/*
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* Copyright (C) 2013 Wei Gao <weigao@multicorewareinc.com>
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* Copyright (C) 2013 Lenny Wang
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVFILTER_DESHAKE_H
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#define AVFILTER_DESHAKE_H
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#include "config.h"
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#include "avfilter.h"
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#include "transform.h"
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#include "libavutil/pixelutils.h"
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enum SearchMethod {
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EXHAUSTIVE, ///< Search all possible positions
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SMART_EXHAUSTIVE, ///< Search most possible positions (faster)
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SEARCH_COUNT
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};
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typedef struct IntMotionVector {
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int x; ///< Horizontal shift
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int y; ///< Vertical shift
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} IntMotionVector;
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typedef struct MotionVector {
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double x; ///< Horizontal shift
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double y; ///< Vertical shift
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} MotionVector;
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typedef struct Transform {
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MotionVector vec; ///< Motion vector
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double angle; ///< Angle of rotation
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double zoom; ///< Zoom percentage
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} Transform;
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#define MAX_R 64
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typedef struct DeshakeContext {
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const AVClass *class;
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int counts[2*MAX_R+1][2*MAX_R+1]; /// < Scratch buffer for motion search
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double *angles; ///< Scratch buffer for block angles
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unsigned angles_size;
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AVFrame *ref; ///< Previous frame
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int rx; ///< Maximum horizontal shift
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int ry; ///< Maximum vertical shift
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int edge; ///< Edge fill method
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int blocksize; ///< Size of blocks to compare
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int contrast; ///< Contrast threshold
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int search; ///< Motion search method
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av_pixelutils_sad_fn sad; ///< Sum of the absolute difference function
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Transform last; ///< Transform from last frame
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int refcount; ///< Number of reference frames (defines averaging window)
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FILE *fp;
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Transform avg;
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int cw; ///< Crop motion search to this box
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int ch;
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int cx;
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int cy;
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char *filename; ///< Motion search detailed log filename
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int opencl;
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int (* transform)(AVFilterContext *ctx, int width, int height, int cw, int ch,
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const float *matrix_y, const float *matrix_uv, enum InterpolateMethod interpolate,
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enum FillMethod fill, AVFrame *in, AVFrame *out);
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} DeshakeContext;
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#endif /* AVFILTER_DESHAKE_H */
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