libavcodec/dca.c:1507: error: Uninitialized Value
  The value read from extensions_mask was never initialized.

libavcodec/dca.c:1507:14: 
1505.     else if (extensions_mask & DCA_EXT_EXSS_X96)
1506.         s->profile = FF_PROFILE_DTS_96_24;
1507.     else if (extensions_mask & DCA_EXT_EXSS_XXCH)
                   ^
1508.         s->profile = FFMAX(s->profile, FF_PROFILE_DTS_ES);
1509. 
