libavcodec/dca.c:1505: error: Uninitialized Value
  The value read from extensions_mask was never initialized.

libavcodec/dca.c:1505:14: 
1503.     else if (extensions_mask & DCA_EXT_EXSS_XBR)
1504.         s->profile = FF_PROFILE_DTS_HD_HRA;
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)
