ff_mpeg4_get_video_packet_prefix_length  150 libavcodec/mpeg4video.h int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s);
ff_mpeg4_get_video_packet_prefix_length  158 libavcodec/mpeg4videodec.c             if (len >= ff_mpeg4_get_video_packet_prefix_length(s))
ff_mpeg4_get_video_packet_prefix_length  410 libavcodec/mpeg4videodec.c     if (len != ff_mpeg4_get_video_packet_prefix_length(s)) {
ff_mpeg4_get_video_packet_prefix_length 1386 libavcodec/mpeg4videoenc.c     put_bits(&s->pb, ff_mpeg4_get_video_packet_prefix_length(s), 0);