libavcodec/ffv1.c:1379: error: Uninitialized Value
  The value read from context_count was never initialized.

libavcodec/ffv1.c:1379:13: 
1377.                 av_freep(&p->vlc_state);
1378.             }
1379.             p->context_count= context_count;
                  ^
1380.         }
1381.     }
