am 905aae46: am 11c88f66: am 2796ba1c: am a555788d: am 0e33cb2d: am e4ccf3a1: am 3329a19b: am c87faed6: Fix integer underflow in covr MPEG4 processing

* commit '905aae465fa88d6d793c670c08c360900c6cb3f7':
  Fix integer underflow in covr MPEG4 processing