75 lines
3.1 KiB
C
75 lines
3.1 KiB
C
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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_FRAMERATE_H
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#define AVFILTER_FRAMERATE_H
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#include "scene_sad.h"
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#include "avfilter.h"
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#define BLEND_FUNC_PARAMS const uint8_t *src1, ptrdiff_t src1_linesize, \
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const uint8_t *src2, ptrdiff_t src2_linesize, \
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uint8_t *dst, ptrdiff_t dst_linesize, \
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ptrdiff_t width, ptrdiff_t height, \
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int factor1, int factor2, int half
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#define BLEND_FACTOR_DEPTH(n) (n-1)
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typedef void (*blend_func)(BLEND_FUNC_PARAMS);
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typedef struct FrameRateContext {
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const AVClass *class;
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// parameters
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AVRational dest_frame_rate; ///< output frames per second
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int flags; ///< flags affecting frame rate conversion algorithm
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double scene_score; ///< score that denotes a scene change has happened
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int interp_start; ///< start of range to apply linear interpolation
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int interp_end; ///< end of range to apply linear interpolation
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int line_size[4]; ///< bytes of pixel data per line for each plane
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int height[4]; ///< height of each plane
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int vsub;
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AVRational srce_time_base; ///< timebase of source
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AVRational dest_time_base; ///< timebase of destination
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ff_scene_sad_fn sad; ///< Sum of the absolute difference function (scene detect only)
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double prev_mafd; ///< previous MAFD (scene detect only)
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int blend_factor_max;
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int bitdepth;
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AVFrame *work;
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AVFrame *f0; ///< last frame
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AVFrame *f1; ///< current frame
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int64_t pts0; ///< last frame pts in dest_time_base
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int64_t pts1; ///< current frame pts in dest_time_base
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int64_t delta; ///< pts1 to pts0 delta
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double score; ///< scene change score (f0 to f1)
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int flush; ///< 1 if the filter is being flushed
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int64_t start_pts; ///< pts of the first output frame
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int64_t n; ///< output frame counter
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blend_func blend;
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} FrameRateContext;
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void ff_framerate_init(FrameRateContext *s);
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void ff_framerate_init_x86(FrameRateContext *s);
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#endif /* AVFILTER_FRAMERATE_H */
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