tree c08282e0055babba4efbcae85c08d1c40647dbc1
parent 7755cdd69690ccbb42c6fd47b3e9c4594d4ade82
author James Dong <jdong@google.com> 1283540515 -0700
committer James Dong <jdong@google.com> 1283540515 -0700

Not all audio source has the drift time information

Change-Id: I74e502376348ca4a6ffaa7492bed35c1355e7e62