commit ae4b6ecfbcbea56cca160715a2ef710d8d87a40f
author Eric Laurent <elaurent@google.com> Tue Jan 15 18:34:38 2019 -0800
committer Eric Laurent <elaurent@google.com> Wed Jan 16 09:52:55 2019 -0800
tree 124f24314b3f95b48a47dc8cc6f4ab0a6a0cc88e
parent 96024c18126150259ba123ef48d180c6e0a2cf7e

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: Ieb159ea82a7b81acf762506a44e24ec80111609f