ff_subtitles_read_chunk  119 libavformat/mpsubdec.c             ff_subtitles_read_chunk(s->pb, &buf);
ff_subtitles_read_chunk  164 libavformat/subtitles.h void ff_subtitles_read_chunk(AVIOContext *pb, AVBPrint *buf);
ff_subtitles_read_chunk   84 libavformat/webvttdec.c         ff_subtitles_read_chunk(s->pb, &cue);