libavformat/mpeg.c:380: error: Uninitialized Value
  The value read from c was never initialized.

libavformat/mpeg.c:380:14: 
378.         avio_seek(s->pb, header_len, SEEK_CUR);
379.     }
380.     else if( c!= 0xf )
                  ^
381.         goto redo;
382. 
