libavcodec/h264.c:4354: error: Uninitialized Value
  The value read from context_count was never initialized.

libavcodec/h264.c:4354:9: 
4352.     }
4353.     if (context_count)
4354.         execute_decode_slices(h, context_count);
              ^
4355.     return buf_index;
4356. }
