am 7e2d436f: am 06880580: am 9784b406: am 49029189: am 30b72fcf: am 0773dc37: am 768a8fb4: am f0e1fb59: am 4a492bf2: Fix integer underflow in covr MPEG4 processing

* commit '7e2d436ff3338e42df5f31cf2aea4d0d19886b0c':
  Fix integer underflow in covr MPEG4 processing