Avoid crash for stss sync sample number 0 am: 5c364997 am: e77a32bd am:...

Avoid crash for stss sync sample number 0 am: 5c364997 am: e77a32bd am: ab28d49e  -s ours am: 73db408a am: 0bb0a8e1 am: 4d86bef7 am: 241f5feb am: a7cec618 am: d0221706 am: cbdc2b78 am: c9f14c34 am: 08bb4c4a am: f3bab7a1 am: 79f18237 am: 143d1a15 am: ab00350d
am: a1689708

Change-Id: I09d565c2eb57f3201438d428ab745e80d543dd3c