len = ff_mp4_read_descr(fc, pb, &tag);
if (tag == MP4DecSpecificDescrTag) {
av_log(fc, AV_LOG_TRACE, "Specific MPEG-4 header len=%d\n", len);
+ /* As per 14496-3:2009 9.D.2.2, No decSpecificInfo is defined
+ for MPEG-1 Audio or MPEG-2 Audio; MPEG-2 AAC excluded. */
+ if (object_type_id == 0x69 || object_type_id == 0x6b)
+ return 0;
if (!len || (uint64_t)len > (1<<30))
return AVERROR_INVALIDDATA;
if ((ret = ff_get_extradata(fc, st->codecpar, pb, len)) < 0)