am 8d60fc3e: am 338bbf53: am fd334e34: am 03d539a7: am a5b9055d: am f1ce97dd: Fix integer overflow when handling MPEG4 tx3g atom

* commit '8d60fc3e3ecd4d7c2b18f25962f0ea42f3644ebd':
  Fix integer overflow when handling MPEG4 tx3g atom