commit a3abb40c82892a47f38eaa81ca5f5e8821143460
author Carter Hsu <carterhsu@google.com> Tue Oct 26 11:11:20 2021 +0800
committer Carter Hsu <carterhsu@google.com> Wed Jan 19 17:54:03 2022 +0800
tree a3afea751da13d8ec55b855052f5878cd72ee8e2
parent 0783619c1fe1f6edbecb8afea8cb6bbedc8510c6

audio: add flag for the Ultrasound input source and content_type

Adding the AUDIO_OUTPUT_FLAG_ULTRASOUND and AUDIO_INPUT_FLAG_ULTRASOUND
for the Ultrasound playback and capture respectively.

If device supports the dedicated output or input for the Ultrasound
content or input source, then assign the Ultrasound track to the
specific Ultrasound output or input.

Bug: 200256985
Test: build pass
Signed-off-by: Carter Hsu <carterhsu@google.com>
Change-Id: I2b56b8ef72fbeed50f960fd41e6b992dbb4f8daa

services/audiopolicy/enginedefault/src/Engine.cpp

diff --git a/services/audiopolicy/enginedefault/src/Engine.cpp b/services/audiopolicy/enginedefault/src/Engine.cpp
index c73c17d..88d267f 100644
--- a/services/audiopolicy/enginedefault/src/Engine.cpp
+++ b/services/audiopolicy/enginedefault/src/Engine.cpp
@@ -460,6 +460,7 @@
         case AUDIO_SOURCE_HOTWORD:
         case AUDIO_SOURCE_CAMCORDER:
         case AUDIO_SOURCE_VOICE_PERFORMANCE:
+        case AUDIO_SOURCE_ULTRASOUND:
             inputSource = AUDIO_SOURCE_VOICE_COMMUNICATION;
             break;
         default:
@@ -586,6 +587,10 @@
         device = availableDevices.getDevice(
                 AUDIO_DEVICE_IN_ECHO_REFERENCE, String8(""), AUDIO_FORMAT_DEFAULT);
         break;
+    case AUDIO_SOURCE_ULTRASOUND:
+        device = availableDevices.getFirstExistingDevice({
+                AUDIO_DEVICE_IN_BUILTIN_MIC, AUDIO_DEVICE_IN_BACK_MIC});
+        break;
     default:
         ALOGW("getDeviceForInputSource() invalid input source %d", inputSource);
         break;