libavformat/mpeg.c:302: error: Uninitialized Value
  The value read from c was never initialized.

libavformat/mpeg.c:302:9: 
300.             break;
301.     }
302.     if ((c & 0xc0) == 0x40) {
             ^
303.         /* buffer scale & size */
304.         get_byte(s->pb);
