Get audio device names on OS X too.

src/CMakeLists.txt

@@ -860,6 +860,7 @@ optional_source(APPLE
     core/mac_startup.mm
     core/scoped_nsautorelease_pool.mm
     devices/macdevicelister.mm
+    engines/osxdevicefinder.cpp
     networkremote/bonjour.mm
     ui/globalshortcutgrabber.mm
     ui/macscreensaver.cpp
@@ -1302,6 +1303,7 @@ if (APPLE)
     ${GROWL}
     /System/Library/Frameworks/AppKit.framework
     /System/Library/Frameworks/Carbon.framework
+    /System/Library/Frameworks/CoreAudio.framework
     /System/Library/Frameworks/DiskArbitration.framework
     /System/Library/Frameworks/Foundation.framework
     /System/Library/Frameworks/IOKit.framework

src/engines/devicefinder.cpp

@@ -20,3 +20,16 @@
 DeviceFinder::DeviceFinder(const QString& gstreamer_sink)
     : gstreamer_sink_(gstreamer_sink) {
 }
+
+QString DeviceFinder::GuessIconName(const QString& description) const {
+  QString description_lower = description.toLower();
+  if (description_lower.contains("headset")) {
+    return "audio-headset";
+  }
+
+  if (description_lower.contains("headphone")) {
+    return "audio-headphones";
+  }
+
+  return "audio-card";
+}

src/engines/devicefinder.h

@@ -18,15 +18,15 @@
 #ifndef DEVICEFINDER_H
 #define DEVICEFINDER_H
 
-#include <QIcon>
 #include <QStringList>
+#include <QVariant>
 
 // Finds audio output devices that can be used with a given gstreamer sink.
 class DeviceFinder {
  public:
   struct Device {
     // The value to set as the "device" gstreamer property.
-    QString name;
+    QVariant device_property_value;
 
     // A human readable description of the device.
     QString description;
@@ -35,6 +35,8 @@ class DeviceFinder {
     QString icon_name;
   };
 
+  virtual ~DeviceFinder() {}
+
   // The name of the gstreamer sink element that devices found by this class
   // can be used with.
   QString gstreamer_sink() const { return gstreamer_sink_; }
@@ -49,6 +51,8 @@ class DeviceFinder {
  protected:
   explicit DeviceFinder(const QString& gstreamer_sink);
 
+  QString GuessIconName(const QString& description) const;
+
  private:
   QString gstreamer_sink_;
 };

src/engines/gstengine.cpp

@@ -54,6 +54,10 @@
 #include "engines/pulsedevicefinder.h"
 #endif
 
+#ifdef Q_OS_DARWIN
+#include "engines/osxdevicefinder.h"
+#endif
+
 using std::shared_ptr;
 using std::vector;
 
@@ -127,6 +131,9 @@ void GstEngine::InitialiseGstreamer() {
 #ifdef HAVE_LIBPULSE
   device_finders.append(new PulseDeviceFinder);
 #endif
+#ifdef Q_OS_DARWIN
+  device_finders.append(new OsxDeviceFinder);
+#endif
 
   for (DeviceFinder* finder : device_finders) {
     if (!plugin_names.contains(finder->gstreamer_sink())) {
@@ -153,7 +160,7 @@ void GstEngine::ReloadSettings() {
   s.beginGroup(kSettingsGroup);
 
   sink_ = s.value("sink", kAutoSink).toString();
-  device_ = s.value("device").toString();
+  device_ = s.value("device");
 
   if (sink_.isEmpty()) sink_ = kAutoSink;
 
@@ -831,7 +838,7 @@ GstEngine::OutputDetailsList GstEngine::GetOutputsList() const {
       output.description = device.description;
       output.icon_name = device.icon_name;
       output.gstreamer_plugin_name = finder->gstreamer_sink();
-      output.device_name = device.name;
+      output.device_property_value = device.device_property_value;
       ret.append(output);
     }
   }

src/engines/gstengine.h

@@ -62,7 +62,7 @@ class GstEngine : public Engine::Base, public BufferConsumer {
     QString icon_name;
 
     QString gstreamer_plugin_name;
-    QString device_name;
+    QVariant device_property_value;
   };
   typedef QList<OutputDetails> OutputDetailsList;
 
@@ -181,7 +181,7 @@ class GstEngine : public Engine::Base, public BufferConsumer {
   QFuture<void> initialising_;
 
   QString sink_;
-  QString device_;
+  QVariant device_;
 
   std::shared_ptr<GstEnginePipeline> current_pipeline_;
   std::shared_ptr<GstEnginePipeline> fadeout_pipeline_;

src/engines/gstenginepipeline.cpp

@@ -94,7 +94,7 @@ GstEnginePipeline::GstEnginePipeline(GstEngine* engine)
 }
 
 void GstEnginePipeline::set_output_device(const QString& sink,
-                                          const QString& device) {
+                                          const QVariant& device) {
   sink_ = sink;
   device_ = device;
 }
@@ -221,10 +221,23 @@ bool GstEnginePipeline::Init() {
   // Create the sink
   if (!(audiosink_ = engine_->CreateElement(sink_, audiobin_))) return false;
 
-  if (g_object_class_find_property(G_OBJECT_CLASS(audiosink_), "device") &&
+  if (g_object_class_find_property(G_OBJECT_GET_CLASS(audiosink_), "device") &&
-      !device_.isEmpty()) {
+      !device_.toString().isEmpty()) {
-    g_object_set(G_OBJECT(audiosink_), "device", device_.toUtf8().constData(),
+    switch (device_.type()) {
-                 nullptr);
+      case QVariant::Int:
+        g_object_set(G_OBJECT(audiosink_),
+                     "device", device_.toInt(),
+                     nullptr);
+        break;
+      case QVariant::String:
+        g_object_set(G_OBJECT(audiosink_),
+                     "device", device_.toString().toUtf8().constData(),
+                     nullptr);
+        break;
+      default:
+        qLog(Warning) << "Unknown device type" << device_;
+        break;
+    }
   }
 
   // Create all the other elements

src/engines/gstenginepipeline.h

@@ -50,7 +50,7 @@ class GstEnginePipeline : public QObject {
   int id() const { return id_; }
 
   // Call these setters before Init
-  void set_output_device(const QString& sink, const QString& device);
+  void set_output_device(const QString& sink, const QVariant& device);
   void set_replaygain(bool enabled, int mode, float preamp, bool compression);
   void set_buffer_duration_nanosec(qint64 duration_nanosec);
   void set_mono_playback(bool enabled);
@@ -184,7 +184,7 @@ signals:
   // General settings for the pipeline
   bool valid_;
   QString sink_;
-  QString device_;
+  QVariant device_;
 
   // These get called when there is a new audio buffer available
   QList<BufferConsumer*> buffer_consumers_;

src/engines/osxdevicefinder.cpp

@@ -0,0 +1,115 @@
+/* This file is part of Clementine.
+   Copyright 2014, David Sansome <me@davidsansome.com>
+   
+   Clementine is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+   
+   Clementine is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with Clementine.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <memory>
+
+#include <CoreAudio/AudioHardware.h>
+
+#include "osxdevicefinder.h"
+#include "core/logging.h"
+#include "core/scoped_cftyperef.h"
+
+namespace {
+
+template <typename T>
+std::unique_ptr<T> GetProperty(const AudioDeviceID& device_id,
+                               const AudioObjectPropertyAddress& address,
+                               UInt32* size_bytes_out = nullptr) {
+  UInt32 size_bytes = 0;
+  OSStatus status = AudioObjectGetPropertyDataSize(
+      device_id, &address, 0, NULL, &size_bytes);
+  if (status != kAudioHardwareNoError) {
+    qLog(Warning) << "AudioObjectGetPropertyDataSize failed:" << status;
+    return std::unique_ptr<T>();
+  }
+
+  std::unique_ptr<T> ret(reinterpret_cast<T*>(malloc(size_bytes)));
+
+  status = AudioObjectGetPropertyData(device_id,
+                                      &address,
+                                      0,
+                                      NULL,
+                                      &size_bytes,
+                                      ret.get());
+  if (status != kAudioHardwareNoError) {
+    qLog(Warning) << "AudioObjectGetPropertyData failed:" << status;
+    return std::unique_ptr<T>();
+  }
+
+  if (size_bytes_out) {
+    *size_bytes_out = size_bytes;
+  }
+
+  return ret;
+}
+
+}  // namespace
+
+
+OsxDeviceFinder::OsxDeviceFinder()
+    : DeviceFinder("osxaudiosink") {
+}
+
+QList<DeviceFinder::Device> OsxDeviceFinder::ListDevices() {
+  QList<Device> ret;
+
+  AudioObjectPropertyAddress address = {
+    kAudioHardwarePropertyDevices,
+    kAudioObjectPropertyScopeGlobal,
+    kAudioObjectPropertyElementMaster
+  };
+
+  UInt32 device_size_bytes = 0;
+  std::unique_ptr<AudioDeviceID> devices =
+      GetProperty<AudioDeviceID>(
+          kAudioObjectSystemObject, address, &device_size_bytes);
+  if (!devices.get()) {
+    return ret;
+  }
+  const int device_count = device_size_bytes / sizeof(AudioDeviceID);
+
+  address.mScope = kAudioDevicePropertyScopeOutput;
+  for (UInt32 i = 0; i < device_count; ++i) {
+    const AudioDeviceID id = devices.get()[i];
+
+    // Query device name
+    address.mSelector = kAudioDevicePropertyDeviceNameCFString;
+    std::unique_ptr<CFStringRef> device_name =
+        GetProperty<CFStringRef>(id, address);
+    ScopedCFTypeRef<CFStringRef> scoped_device_name(*device_name.get());
+    if (!device_name.get()) {
+      continue;
+    }
+
+    // Determine if the device is an output device (it is an output device if
+    // it has output channels)
+    address.mSelector = kAudioDevicePropertyStreamConfiguration;
+    std::unique_ptr<AudioBufferList> buffer_list =
+        GetProperty<AudioBufferList>(id, address);
+    if (!buffer_list.get() || buffer_list->mNumberBuffers == 0) {
+      continue;
+    }
+
+    Device dev;
+    dev.description = QString::fromUtf8(
+        CFStringGetCStringPtr(*device_name, CFStringGetSystemEncoding()));
+    dev.device_property_value = id;
+    dev.icon_name = GuessIconName(dev.description);
+    ret.append(dev);
+  }
+  return ret;
+}

src/engines/osxdevicefinder.h

@@ -0,0 +1,31 @@
+/* This file is part of Clementine.
+   Copyright 2014, David Sansome <me@davidsansome.com>
+   
+   Clementine is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+   
+   Clementine is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with Clementine.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef OSXDEVICEFINDER_H
+#define OSXDEVICEFINDER_H
+
+#include "engines/devicefinder.h"
+
+class OsxDeviceFinder : public DeviceFinder {
+ public:
+  OsxDeviceFinder();
+
+  virtual bool Initialise() { return true; }
+  virtual QList<Device> ListDevices();
+};
+
+#endif // OSXDEVICEFINDER_H

src/engines/pulsedevicefinder.cpp

@@ -109,7 +109,7 @@ void PulseDeviceFinder::GetSinkInfoCallback(pa_context* c,
 
   if (info) {
     Device dev;
-    dev.name = QString::fromUtf8(info->name);
+    dev.device_property_value = QString::fromUtf8(info->name);
     dev.description = QString::fromUtf8(info->description);
     dev.icon_name = QString::fromUtf8(
         pa_proplist_gets(info->proplist, "device.icon_name"));

src/ui/playbacksettingspage.cpp

@@ -88,7 +88,7 @@ void PlaybackSettingsPage::Load() {
         ui_->gst_output->itemData(i).value<GstEngine::OutputDetails>();
 
     if (details.gstreamer_plugin_name == sink &&
-        details.device_name == device) {
+        details.device_property_value == device) {
       ui_->gst_output->setCurrentIndex(i);
       break;
     }
@@ -128,7 +128,7 @@ void PlaybackSettingsPage::Save() {
 
   s.beginGroup(GstEngine::kSettingsGroup);
   s.setValue("sink", details.gstreamer_plugin_name);
-  s.setValue("device", details.device_name);
+  s.setValue("device", details.device_property_value);
   s.setValue("rgenabled", ui_->replaygain->isChecked());
   s.setValue("rgmode", ui_->replaygain_mode->currentIndex());
   s.setValue("rgpreamp", float(ui_->replaygain_preamp->value()) / 10 - 15);