libavformat/mpeg.c:505: error: Uninitialized Value
  The value read from dvdaudio_substream_type was never initialized.

libavformat/mpeg.c:505:9: 
503.         type = CODEC_TYPE_AUDIO;
504.         switch(dvdaudio_substream_type & 0xe0) {
505.         case 0xa0:  codec_id = CODEC_ID_PCM_DVD;
             ^
506.                     break;
507.         case 0x80:  if((dvdaudio_substream_type & 0xf8) == 0x88)
