How to use two input devices at the same time in Android 4.1.1?

Hi Emily,

did you checked those changes for the AudioPolicyManagerBase

https://android.googlesource.com/platform/hardware/libhardware_legacy/+/android-4.4_r0.7%5E2%5E!/

Regards,

Boyko

Hi, Boyko

Thanks your reply.

I tried to merge the AudioPolicyManagerBase and my test steps as follows:

1. execute VoIP apk and make voip call from Device1 to Device2,
2. during live call launch SoundRecorder.apk and give record,

In my test steps, the activeDesc->mInputSource != AUDIO_SOURCE_HOTWORD, the activeDesc->mInputSource == AUDIO_SOURCE_VOICE_COMMUNICATION, so I still get "startInput() input xx failed: other input already started" message, where do I need to set "InputSource = AUDIO_SOURCE_HOTWORD"?

+        // refuse 2 active AudioRecord clients at the same time except if the active input
+        // uses AUDIO_SOURCE_HOTWORD in which case it is closed.
+        audio_io_handle_t activeInput = getActiveInput();
+        if (!isVirtualInputDevice(inputDesc->mDevice) && activeInput != 0) {
+            AudioInputDescriptor *activeDesc = mInputs.valueFor(activeInput);
+            if (activeDesc->mInputSource == AUDIO_SOURCE_HOTWORD) {
+                ALOGW("startInput() preempting already started low-priority input %d", activeInput);
+                stopInput(activeInput);
+                releaseInput(activeInput);
+            } else {
+                ALOGW("startInput() input %d failed: other input already started..", input);
+                return INVALID_OPERATION;
+            }


Regards,
Emily