libavcodec/metasound.c:343: error: Uninitialized Value
  The value read from isampf was never initialized.

libavcodec/metasound.c:343:5: 
341.         tctx->mtab = &ff_metasound_mode4440;
342.         break;
343.     case (2 << 16) + (44 << 8) + 40:
         ^
344.         tctx->mtab = &ff_metasound_mode4440s;
345.         break;
