libavcodec/msmpeg4.c:850: error: Uninitialized Value
  The value read from extquant was never initialized.

libavcodec/msmpeg4.c:850:13: 
848.             put_bits(&s->pb, 8 + extrabits, level);
849.         else if(extrabits > 0)//== VC1 && s->qscale<=2
850.             put_bits(&s->pb, extrabits, extquant);
                 ^
851. 
852.         if (level != 0) {
