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_mode4432;
315.         break;
316.     case (2 << 16) + (44 << 8) + 48:
         ^
317.         tctx->mtab = &ff_metasound_mode4448s;
318.         break;
