Stop SoundPool decode if NdkMediaCodec returns null buffers
Stop SoundPool decode if NdkMediaCodec returns null buffers

Also increase error checking.

Bug: 27346228
Change-Id: Ib94505f852344298f88a3fdcbd65ca8031084188

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base