1 files changed, 13 insertions, 0 deletions
diff --git a/audio/AudioPolicyManagerBase.cpp b/audio/AudioPolicyManagerBase.cpp
index 56ec96e..01fb48f 100644
--- a/audio/AudioPolicyManagerBase.cpp
+++ b/audio/AudioPolicyManagerBase.cpp
@@ -969,6 +969,13 @@ status_t AudioPolicyManagerBase::startInput(audio_io_handle_t input)
     if ((newDevice != AUDIO_DEVICE_NONE) && (newDevice != inputDesc->mDevice)) {
         inputDesc->mDevice = newDevice;
     }
+
+    // automatically enable the remote submix output when input is started
+    if (audio_is_remote_submix_device(inputDesc->mDevice)) {
+        setDeviceConnectionState(AUDIO_DEVICE_OUT_REMOTE_SUBMIX,
+                AudioSystem::DEVICE_STATE_AVAILABLE, AUDIO_REMOTE_SUBMIX_DEVICE_ADDRESS);
+    }
+
     AudioParameter param = AudioParameter();
     param.addInt(String8(AudioParameter::keyRouting), (int)inputDesc->mDevice);
 
@@ -995,6 +1002,12 @@ status_t AudioPolicyManagerBase::stopInput(audio_io_handle_t input)
         ALOGW("stopInput() input %d already stopped", input);
         return INVALID_OPERATION;
     } else {
+        // automatically disable the remote submix output when input is stopped
+        if (audio_is_remote_submix_device(inputDesc->mDevice)) {
+            setDeviceConnectionState(AUDIO_DEVICE_OUT_REMOTE_SUBMIX,
+                    AudioSystem::DEVICE_STATE_UNAVAILABLE, AUDIO_REMOTE_SUBMIX_DEVICE_ADDRESS);
+        }
+
         AudioParameter param = AudioParameter();
         param.addInt(String8(AudioParameter::keyRouting), 0);
         mpClientInterface->setParameters(input, param.toString());