id3v2_read_internal 1042 libavformat/id3v2.c     id3v2_read_internal(pb, metadata, NULL, magic, extra_meta, 0);
id3v2_read_internal 1048 libavformat/id3v2.c     id3v2_read_internal(s->pb, &s->metadata, s, magic, extra_meta, max_search_size);