commit 084338d3afda674fb54d54235700d8f848ae98be
author Eric Laurent <elaurent@google.com> Tue Jan 15 18:26:06 2019 -0800
committer Eric Laurent <elaurent@google.com> Wed Jan 16 09:55:24 2019 -0800
tree 69a9748842c84cfa74e7ea4d1a3d8726c05fc960
parent b2b06aa2023b8368eef5fe051e6b989fbf35013d

add new audio sources for audio capture

This commit adds the following audio capture sources:
- AUDIO_SOURCE_VOICE_PERFORMANCE: for real time live performances like Karaoke.
- AUDIO_SOURCE_ECHO_REFERENCE: for capturing the reference signal to suppress by an echo
canceller. Protected by privileged permission CAPTURE_AUDIO_OUTPUT.

Also added device AUDIO_DEVICE_IN_ECHO_REFERENCE selected when the requested
capture source is AUDIO_SOURCE_ECHO_REFERENCE.

Bug: 118203066
Test: CTS tests for audio capture
Change-Id: I78ff0394db280d1efa261ec955da67b0205124ac