Decoder: Increased allocation and added checks in sei parsing. am: f2b70d3537 am: 8d32a711ac am: a0827a3bb1 am: cd831159ce am: 2a3efcfcde am: 013d98b763 am: 48d8b5bbc9
am: ccc5298ffb

Change-Id: I83547b11f6da1c33f0ac304690924eacc2ba2920