libavcodec/metasound.c:316: error: Uninitialized Value
  The value read from isampf was never initialized.

libavcodec/metasound.c:316:5: 
314.         tctx->mtab = &ff_metasound_mode0806s;
315.         break;
316.     case (1 << 16) + ( 8 << 8) +  8:
         ^
317.         tctx->mtab = &ff_metasound_mode0808;
318.         break;
