AUContext *au = s->priv_data;
int64_t file_size = avio_tell(pb);
- if (s->pb->seekable && file_size < INT32_MAX) {
+ if ((s->pb->seekable & AVIO_SEEKABLE_NORMAL) && file_size < INT32_MAX) {
/* update file size */
avio_seek(pb, 8, SEEK_SET);
avio_wb32(pb, (uint32_t)(file_size - au->header_size));