av_log(s, AV_LOG_DEBUG, "'\n");
} else if (len == 4 && type == 3 && !strncmp(key, "Duration", tlen)) {
st->duration = avio_rb32(pb);
av_log(s, AV_LOG_DEBUG, "'\n");
} else if (len == 4 && type == 3 && !strncmp(key, "Duration", tlen)) {
st->duration = avio_rb32(pb);