From 66725f5f1b48d7247cb246c590095603d0909bed Mon Sep 17 00:00:00 2001
From: amerhifi <amer@highfidelity.io>
Date: Tue, 17 Sep 2019 07:50:22 -0700
Subject: [PATCH]  working on swapping default devices on system change

---
 interface/src/scripting/AudioDevices.cpp      |  2 ++
 libraries/audio-client/src/AudioClient.cpp    | 28 +++++++++++++++++--
 .../audio-client/src/HifiAudioDeviceInfo.h    |  2 +-
 3 files changed, 28 insertions(+), 4 deletions(-)

diff --git a/interface/src/scripting/AudioDevices.cpp b/interface/src/scripting/AudioDevices.cpp
index 7e31d36f7d..b7c2d1e973 100644
--- a/interface/src/scripting/AudioDevices.cpp
+++ b/interface/src/scripting/AudioDevices.cpp
@@ -121,6 +121,8 @@ AudioDeviceList::~AudioDeviceList() {
     // store the selected device
     foreach(std::shared_ptr<AudioDevice> adevice, _devices) {
         if (adevice->selectedDesktop) {
+            qDebug() << "AMER ----> " << adevice->info.getId();
+            qDebug() << " AMER-------------> " << adevice->info.deviceName();
             settingDesktop.set(adevice->info.deviceName());
         }
         if (adevice->selectedHMD) {
diff --git a/libraries/audio-client/src/AudioClient.cpp b/libraries/audio-client/src/AudioClient.cpp
index 4f5edef1b8..a926865025 100644
--- a/libraries/audio-client/src/AudioClient.cpp
+++ b/libraries/audio-client/src/AudioClient.cpp
@@ -119,6 +119,31 @@ void AudioClient::checkDevices() {
     auto inputDevices = getAvailableDevices(QAudio::AudioInput);
     auto outputDevices = getAvailableDevices(QAudio::AudioOutput);
 
+    {
+        Lock lock(_deviceMutex);
+        //is the current device the default selected device?
+        if (_inputDeviceInfo.isDefault() && _inputDeviceInfo == _defaultInputDevice) {
+            auto defInput = defaultAudioDeviceForMode(QAudio::AudioInput);
+            
+            //Has the default device changed
+            if (_defaultInputDevice.getDevice() != defInput.getDevice()) {
+                qDebug() << "Changing Current Default device  " << _defaultInputDevice.getAudioDeviceName();
+                _defaultInputDevice.setDevice(defInput.getDevice());
+                qDebug() << "NEW Default device  " << _defaultInputDevice.getAudioDeviceName();
+                QMetaObject::invokeMethod(this, "switchInputToAudioDevice", Qt::QueuedConnection, Q_ARG(HifiAudioDeviceInfo, _defaultInputDevice));
+            }
+        }
+
+        if (_outputDeviceInfo.isDefault() && _inputDeviceInfo == _defaultInputDevice) {
+            auto defOutput = defaultAudioDeviceForMode(QAudio::AudioOutput);
+
+            if (_defaultOutputDevice.getDevice() != defOutput.getDevice()) {
+                _defaultOutputDevice.setDevice(defOutput.getDevice());
+                QMetaObject::invokeMethod(this, "switchOutputToAudioDevice", Qt::QueuedConnection, Q_ARG(HifiAudioDeviceInfo, _defaultOutputDevice));
+            }
+        }
+    }
+
     //add the pseudo device to the list of devices
     inputDevices.push_front(_defaultInputDevice);
     outputDevices.push_front(_defaultOutputDevice);
@@ -342,19 +367,16 @@ AudioClient::AudioClient() :
 
     connect(&_receivedAudioStream, &InboundAudioStream::mismatchedAudioCodec, this, &AudioClient::handleMismatchAudioFormat);
 
-
     _defaultOutputDevice = defaultAudioDeviceForMode(QAudio::AudioOutput);
     _defaultOutputDevice.setDeviceName("Default audio (recommended)");
     _defaultOutputDevice.setIsDefault(true);
     _defaultOutputDevice.setMode(QAudio::AudioOutput);
- 
 
     _defaultInputDevice = defaultAudioDeviceForMode(QAudio::AudioInput);
     _defaultInputDevice.setDeviceName("Default microphone (recommended)");
     _defaultInputDevice.setIsDefault(true);
     _defaultInputDevice.setMode(QAudio::AudioInput);
  
-
     // initialize wasapi; if getAvailableDevices is called from the CheckDevicesThread before this, it will crash
     getAvailableDevices(QAudio::AudioInput);
     getAvailableDevices(QAudio::AudioOutput);
diff --git a/libraries/audio-client/src/HifiAudioDeviceInfo.h b/libraries/audio-client/src/HifiAudioDeviceInfo.h
index e044562a35..2647235e15 100644
--- a/libraries/audio-client/src/HifiAudioDeviceInfo.h
+++ b/libraries/audio-client/src/HifiAudioDeviceInfo.h
@@ -36,7 +36,7 @@ public:
     }
     void setDevice(QAudioDeviceInfo devInfo);
     void setId(QString name);
-   
+    QString getAudioDeviceName() { return _audioDeviceInfo.deviceName(); }
     QString getId() const { return _uniqueId; }
     QAudioDeviceInfo getDevice() const { return _audioDeviceInfo; }
     QString deviceName() const { return _deviceName; }