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Diffstat (limited to 'libavfilter/deshake.h')
-rw-r--r-- | libavfilter/deshake.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/libavfilter/deshake.h b/libavfilter/deshake.h new file mode 100644 index 0000000..becd6c2 --- /dev/null +++ b/libavfilter/deshake.h @@ -0,0 +1,107 @@ +/* + * 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" +#if CONFIG_OPENCL +#include "libavutil/opencl.h" +#endif + + +enum SearchMethod { + EXHAUSTIVE, ///< Search all possible positions + SMART_EXHAUSTIVE, ///< Search most possible positions (faster) + SEARCH_COUNT +}; + +typedef struct { + int x; ///< Horizontal shift + int y; ///< Vertical shift +} IntMotionVector; + +typedef struct { + double x; ///< Horizontal shift + double y; ///< Vertical shift +} MotionVector; + +typedef struct { + MotionVector vec; ///< Motion vector + double angle; ///< Angle of rotation + double zoom; ///< Zoom percentage +} Transform; + +#if CONFIG_OPENCL + +typedef struct { + cl_command_queue command_queue; + cl_program program; + cl_kernel kernel_luma; + cl_kernel kernel_chroma; + int in_plane_size[8]; + int out_plane_size[8]; + int plane_num; + cl_mem cl_inbuf; + size_t cl_inbuf_size; + cl_mem cl_outbuf; + size_t cl_outbuf_size; +} DeshakeOpenclContext; + +#endif + +#define MAX_R 64 + +typedef struct { + 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; +#if CONFIG_OPENCL + DeshakeOpenclContext opencl_ctx; +#endif + 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 */ |