am 9784b406: am 49029189: am 30b72fcf: am 0773dc37: am 768a8fb4: am f0e1fb59: am 4a492bf2: Fix integer underflow in covr MPEG4 processing

* commit '9784b406e4da2fd34d975033722f87e496ba3ea4':
  Fix integer underflow in covr MPEG4 processing