commit ff080742276aab065fa6a093e93db1fe63579323
author Eric Laurent <elaurent@google.com> Tue Jan 15 18:31:49 2019 -0800
committer Eric Laurent <elaurent@google.com> Wed Jan 16 09:54:45 2019 -0800
tree 0ed5325332b50522e10d47b6b3baf95d29e3aa54
parent 9bed22a4b561e067a0e54cf07135b108c8fff8f3

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: Ia93550b278733ae9cc5cda731b014421002fde35