tree f9acecd72a2a7e1b99ef65e88b844c629381e4d6
parent 5afd2bd02ae44d5a38f9e560047723ddab176405
author Eric Laurent <elaurent@google.com> 1315337775 -0700
committer Eric Laurent <elaurent@google.com> 1315345040 -0700

Issue 5247986: Battery drain due to audio wakelock

The problem occurs when activating or deactivating A2DP connection
while SoudPool has a channel active. This can happen quite frequently now
that the UI sound effects are enabled by default.
If PCM data is remaining in the AudioTrack buffer when it is restroyed and
re-created on the new AudioFlinger output thread, this data is flushed.
As a consequence, no underrun or request for new data callback is sent to
SoundPool and the sound channel remains active for ever as the end of the
sample is never detected.

Change-Id: I13e0c11e4ce3f83bff7f58d347ca814b6a86712b