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

services/audioflinger/Threads.cpp

diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index 989e6eb..607d2d1 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -494,6 +494,8 @@
     case AUDIO_SOURCE_VOICE_COMMUNICATION:  return "voice communication";
     case AUDIO_SOURCE_REMOTE_SUBMIX:        return "remote submix";
     case AUDIO_SOURCE_UNPROCESSED:          return "unprocessed";
+    case AUDIO_SOURCE_VOICE_PERFORMANCE:    return "voice performance";
+    case AUDIO_SOURCE_ECHO_REFERENCE:       return "echo reference";
     case AUDIO_SOURCE_FM_TUNER:             return "FM tuner";
     case AUDIO_SOURCE_HOTWORD:              return "hotword";
     default:                                return "unknown";