tree 1160b438f34032222a1b6b1311aa2b9325f0649e
parent 62245376a75832aa06626f30a00006dc19ddfddd
author Martin Puryear <mpuryear@google.com> 1565997066 +0000
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> 1565997066 +0000

[e2e] Adjust audio timestamp handling

To increase consistency in the audio-related e2e tests, this CL
changes how the facade configures its virtual_audio output and input
devices -- specifically setting any simulated FIFO depth or external
delay to zero.

To enable more specific timestamp checking, it also adds completion
handlers for Start and Stop. The Start and PositionNotify completion
events are timestamped by the driver, so we should be able to use
these timestamps (on top of PositionNotify event 'time-of-arrival')
to discern between driver-related delays and delays in notification
delivery.

The CL also fixes up some log messages and comments.

Test: test-code only, change to logging behavior

Bug: 8587
Bug: 13693

Change-Id: I56811271427af55478f5626609c6028aaff751c2