libavcodec/metasound.c:313: error: Uninitialized Value
  The value read from isampf was never initialized.

libavcodec/metasound.c:313:5: 
311.         tctx->mtab = &ff_metasound_mode0806;
312.         break;
313.     case (2 << 16) + ( 8 << 8) +  6:
         ^
314.         tctx->mtab = &ff_metasound_mode0806s;
315.         break;
