tree c7bbba24c59dae14562a7de5e85a5e013c5c5223
parent 8ed6a4bba41ab8c707e141a210666d60dc4d170d
author henrika <henrika@chromium.org> 1427450183 +0100
committer henrika <henrika@chromium.org> 1427450195 +0000

Adding playout volume control to WebRtcAudioTrack.java.

Also adds a framework for an AudioManager to be used by both sides (playout and recording).
This initial implementation only does very simple tasks like setting up the correct audio
mode (needed for correct volume behavior). Note that this CL is mainly about modifying
the volume. The added AudioManager is only a place holder for future work. I could have
done the same parts in the WebRtcAudioTrack class but feel that it is better to move these
parts to an AudioManager already at this stage.

The AudioManager supports Init() where actual audio changes are done (set audio mode etc.)
but it can also be used a simple "construct-and-store-audio-parameters" unit, which is the
case here. Hence, the AM now serves as the center for getting audio parameters and then inject
these into playout and recording sides. Previously, both sides acquired their own parameters
and that is more error prone.

BUG=NONE
TEST=AudioDeviceTest
R=perkj@webrtc.org, phoglund@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/45829004

Cr-Commit-Position: refs/heads/master@{#8875}