stream->codec->codec_type = AVMEDIA_TYPE_VIDEO;
stream->codec->codec_id = CODEC_ID_BETHSOFTVID;
stream->codec->width = avio_rl16(pb);
stream->codec->codec_type = AVMEDIA_TYPE_VIDEO;
stream->codec->codec_id = CODEC_ID_BETHSOFTVID;
stream->codec->width = avio_rl16(pb);