audio macOS: choose audio device

Use audio device from jami preferences(before was system
default audio device).

Change-Id: I97f0bd46cabdd389d1a48fd0dce51682fc34bb5c

src/media/audio/coreaudio/osx/corelayer.cpp

@@ -96,6 +96,13 @@ CoreLayer::initAudioLayerIO()
     // 5) Profit...
     JAMI_DBG("INIT AUDIO IO");
 
+    //get capture divice
+    auto captureList = getDeviceList(true);
+    auto inputDeviceID = captureList[indexIn_].id_;
+    //get playback device
+    auto playbackList = getDeviceList(false);
+    auto playbackDeviceID = playbackList[indexOut_].id_;
+
     AudioUnitScope outputBus = 0;
     AudioUnitScope inputBus = 1;
     AudioComponentDescription desc = {0};
@@ -115,9 +122,27 @@ CoreLayer::initAudioLayerIO()
 
     checkErr(AudioComponentInstanceNew(comp, &ioUnit_));
 
+    //set capture device
+    UInt32 size = sizeof(inputDeviceID);
+    AudioUnitSetProperty(ioUnit_,
+                         kAudioOutputUnitProperty_CurrentDevice,
+                         kAudioUnitScope_Global,
+                         inputBus,
+                         &inputDeviceID,
+                         size);
+
+    //set playback device
+    size = sizeof(playbackDeviceID);
+    AudioUnitSetProperty(ioUnit_,
+                         kAudioOutputUnitProperty_CurrentDevice,
+                         kAudioUnitScope_Global,
+                         outputBus,
+                         &playbackDeviceID,
+                         size);
+
     // Set stream format
     AudioStreamBasicDescription info;
-    UInt32 size = sizeof(info);
+    size = sizeof(info);
     checkErr(AudioUnitGetProperty(ioUnit_,
             kAudioUnitProperty_StreamFormat,
             kAudioUnitScope_Output,