libavcodec/mlpdec.c:1122: error: Uninitialized Value
  The value read from substream_data_len[_] was never initialized.

libavcodec/mlpdec.c:1122:13: 
1120. 
1121.         skip_bits(&gb, (-get_bits_count(&gb)) & 15);
1122.         if (substream_data_len[substr] * 8 - get_bits_count(&gb) >= 32 &&
                  ^
1123.             (show_bits_long(&gb, 32) == 0xd234d234 ||
1124.              show_bits_long(&gb, 20) == 0xd234e)) {
