st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
st->codecpar->channels = avio_rl32(s->pb);
st->codecpar->sample_rate = avio_rl32(s->pb);
+ if (st->codecpar->sample_rate <= 0)
+ return AVERROR_INVALIDDATA;
codec = avio_rl32(s->pb);
align = avio_rl32(s->pb);
avio_skip(s->pb, 4);