tag = bytestream2_get_le32(&p);
st->codec->codec_id = ff_codec_get_id(ff_codec_bmp_tags, tag);
st->codec->codec_tag = tag;
+ if (st->codec->codec_id == AV_CODEC_ID_MPEG4)
+ st->need_parsing = AVSTREAM_PARSE_HEADERS;
} else if (bytestream2_peek_byte(&p) == 't') {
st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
st->codec->codec_id = AV_CODEC_ID_TEXT;