ff_mp4_read_descr_len 187 libavformat/cafdec.c pos += caf->bytes_per_packet ? caf->bytes_per_packet : ff_mp4_read_descr_len(pb); ff_mp4_read_descr_len 188 libavformat/cafdec.c st->duration += caf->frames_per_packet ? caf->frames_per_packet : ff_mp4_read_descr_len(pb); ff_mp4_read_descr_len 416 libavformat/isom.c len = ff_mp4_read_descr_len(pb); ff_mp4_read_descr_len 202 libavformat/isom.h int ff_mp4_read_descr_len(AVIOContext *pb);