header_size = avio_rl32(pb);
avio_skip(pb, 8); /* sample count */
sample_rate = av_int2double(avio_rl64(pb));
st->codec->channels = avio_rl32(pb);
comment_size = avio_rl32(pb);
} else {
header_size = avio_rl32(pb);
avio_skip(pb, 8); /* sample count */
sample_rate = av_int2double(avio_rl64(pb));
st->codec->channels = avio_rl32(pb);
comment_size = avio_rl32(pb);
} else {