ff_framesync_process_frame  298 libavfilter/framesync.c     if ((ret = ff_framesync_process_frame(fs, 1)) < 0)
ff_framesync_process_frame  302 libavfilter/framesync.c     if ((ret = ff_framesync_process_frame(fs, 0)) < 0)
ff_framesync_process_frame  312 libavfilter/framesync.c     if ((ret = ff_framesync_process_frame(fs, 0)) < 0)
ff_framesync_process_frame  324 libavfilter/framesync.c         if ((ret = ff_framesync_process_frame(fs, 0)) < 0)
ff_framesync_process_frame  276 libavfilter/framesync.h int ff_framesync_process_frame(FFFrameSync *fs, unsigned all);