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