public AEDev(bool resetDevice = false)
{
IMMDevice _Device = null;
if (resetDevice)
{
_devId = "";
}
_realEnumerator = new _AEDeviceEnumerator() as IMMDeviceEnumerator;
try
{
if (String.IsNullOrEmpty(_devId))
{
Marshal.ThrowExceptionForHR(_realEnumerator.GetDefaultAudioEndpoint(0, 1, out _Device));
Marshal.ThrowExceptionForHR(_Device.GetId(out _devId));
}
else
{
Marshal.ThrowExceptionForHR(_realEnumerator.GetDevice(_devId, out _Device));
}
devstatus state;
Marshal.ThrowExceptionForHR(_Device.GetState(out state));
if (state != devstatus.DEVICE_STATE_ACTIVE)
{
throw new ApplicationException($"audio device is not active ({state.ToString()})");
}
_RealDevice = _Device;
object result;
Marshal.ThrowExceptionForHR(_RealDevice.Activate(ref IID_IAudioEndpointVolume, CTX.ALL, IntPtr.Zero, out result));
_AudioEndPointVolume = result as IAudioEndpointVolume;
_CallBack = new AudioEndpointVolumeCallback(this);
Marshal.ThrowExceptionForHR(_AudioEndPointVolume.RegisterControlChangeNotify(_CallBack));
}
catch (Exception)
{
// Catch if no device is found or changed device
try
{
Marshal.ThrowExceptionForHR(_realEnumerator.GetDefaultAudioEndpoint(0, 1, out _Device));
Marshal.ThrowExceptionForHR(_Device.GetId(out _devId));
devstatus state;
Marshal.ThrowExceptionForHR(_Device.GetState(out state));
if (state != devstatus.DEVICE_STATE_ACTIVE)
{
throw new ApplicationException($"audio device is not active ({state.ToString()})");
}
_RealDevice = _Device;
object result;
Marshal.ThrowExceptionForHR(_RealDevice.Activate(ref IID_IAudioEndpointVolume, CTX.ALL, IntPtr.Zero, out result));
_AudioEndPointVolume = result as IAudioEndpointVolume;
_CallBack = new AudioEndpointVolumeCallback(this);
Marshal.ThrowExceptionForHR(_AudioEndPointVolume.RegisterControlChangeNotify(_CallBack));
}
catch (Exception)
{
// Catch if no device is found
}
}
}
public string GetDeviceId(IMMDevice device)
{
string device_id = "";
device.GetId(out device_id);
return(device_id);
}
private void CacheDevice(IMMDevice mDevice)
{
if (!DeviceIsValid(mDevice))
{
return;
}
string id;
mDevice.GetId(out id);
var device = _deviceCache.FirstOrDefault(x => String.Equals(x.RealId, id, StringComparison.InvariantCultureIgnoreCase));
if (device != null)
{
return;
}
var lockAcquired = _lock.AcquireWriteLockNonReEntrant();
try
{
device = new CoreAudioDevice(mDevice, this);
_deviceCache.Add(device);
}
finally
{
if (lockAcquired)
{
_lock.ExitWriteLock();
}
}
}
public void IMMDeviceEnumerator_GetDevice()
{
int result = 0;
var enumerator = TestUtilities.CreateIMMDeviceEnumerator();
var allDevices = TestUtilities.CreateIMMDeviceCollection(EDataFlow.eAll, DEVICE_STATE_XXX.DEVICE_STATEMASK_ALL);
foreach (var device in allDevices)
{
// Get the device ID.
string deviceId = null;
result = device.GetId(out deviceId);
AssertCoreAudio.IsHResultOk(result);
Assert.IsNotNull(deviceId, "The device string is null.");
// Get the IMMDevice directly from the ID.
IMMDevice deviceFromId = null;
result = enumerator.GetDevice(deviceId, out deviceFromId);
AssertCoreAudio.IsHResultOk(result);
Assert.IsNotNull(deviceFromId, "The IMMDevice object is null.");
// Ensure the IDs of each device match.
string deviceId2 = null;
result = deviceFromId.GetId(out deviceId2);
AssertCoreAudio.IsHResultOk(result);
Assert.IsNotNull(deviceId2, "The device string is null.");
Assert.AreEqual(deviceId, deviceId2, "The device IDs are not equal.");
}
}
public AudioDevice(IAudioDeviceManager deviceManager, IMMDevice device, Dispatcher foregroundDispatcher)
{
_device = device;
_deviceManager = new WeakReference <IAudioDeviceManager>(deviceManager);
_dispatcher = foregroundDispatcher;
_id = device.GetId();
Trace.WriteLine($"AudioDevice Create {_id}");
if (_device.GetState() == DeviceState.ACTIVE)
{
_deviceVolume = device.Activate <IAudioEndpointVolume>();
_deviceVolume.RegisterControlChangeNotify(this);
_deviceVolume.GetMasterVolumeLevelScalar(out _volume);
_isMuted = _deviceVolume.GetMute() != 0;
_isRegistered = true;
_meter = device.Activate <IAudioMeterInformation>();
_channels = new AudioDeviceChannelCollection(_deviceVolume, _dispatcher);
_sessions = new AudioDeviceSessionCollection(this, _device, _dispatcher);
_sessionFilter = new FilteredCollectionChain <IAudioDeviceSession>(_sessions.Sessions, _dispatcher);
Groups = _sessionFilter.Items;
}
else
{
Groups = new ObservableCollection <IAudioDeviceSession>();
}
ReadProperties();
}
internal static string GetID(IMMDevice realDevice)
{
string result;
Marshal.ThrowExceptionForHR(realDevice.GetId(out result));
return(result);
}
public AudioDeviceSessionCollection(IAudioDevice parent, IMMDevice device)
{
Trace.WriteLine($"AudioDeviceSessionCollection Create dev={device.GetId()}");
_parent = new WeakReference <IAudioDevice>(parent);
_dispatcher = App.Current.Dispatcher;
Task.Factory.StartNew(() =>
{
try
{
_sessionManager = device.Activate <IAudioSessionManager2>();
_sessionManager.RegisterSessionNotification(this);
var enumerator = _sessionManager.GetSessionEnumerator();
int count = enumerator.GetCount();
for (int i = 0; i < count; i++)
{
CreateAndAddSession(enumerator.GetSession(i));
}
}
catch (Exception ex)
{
Trace.TraceError($"{ex}");
}
});
}
private CoreAudioDevice CacheDevice(IMMDevice mDevice)
{
if (!DeviceIsValid(mDevice))
{
return(null);
}
string id;
mDevice.GetId(out id);
var device = GetDevice(id);
if (device != null)
{
return(device);
}
var lockAcquired = _lock.AcquireWriteLockNonReEntrant();
try
{
device = new CoreAudioDevice(mDevice, this);
_deviceCache.Add(device);
return(device);
}
finally
{
if (lockAcquired)
{
_lock.ExitWriteLock();
}
}
}
public AEDev()
{
IMMDevice _Device = null;
if (String.IsNullOrEmpty(_devId))
{
Marshal.ThrowExceptionForHR(_realEnumerator.GetDefaultAudioEndpoint(0, 1, out _Device));
Marshal.ThrowExceptionForHR(_Device.GetId(out _devId));
}
else
{
Marshal.ThrowExceptionForHR(_realEnumerator.GetDevice(_devId, out _Device));
}
devstatus state;
Marshal.ThrowExceptionForHR(_Device.GetState(out state));
if (state != devstatus.DEVICE_STATE_ACTIVE)
{
throw new ApplicationException(String.Format("audio device is not active ({0})", state.ToString()));
}
_RealDevice = _Device;
object result;
Marshal.ThrowExceptionForHR(_RealDevice.Activate(ref IID_IAudioEndpointVolume, CTX.ALL, IntPtr.Zero, out result));
_AudioEndPointVolume = result as IAudioEndpointVolume;
_CallBack = new AudioEndpointVolumeCallback(this);
Marshal.ThrowExceptionForHR(_AudioEndPointVolume.RegisterControlChangeNotify(_CallBack));
}
internal MMDevice(IMMDevice realDevice)
{
_RealDevice = realDevice;
GetPropertyInformation();
Marshal.ThrowExceptionForHR(_RealDevice.GetId(out _id));
IMMEndpoint ep = _RealDevice as IMMEndpoint;
Marshal.ThrowExceptionForHR(ep.GetDataFlow(out _dataFlow));
Marshal.ThrowExceptionForHR(_RealDevice.GetState(out _state));
if (_PropertyStore.Contains(PKEY.PKEY_DeviceInterface_FriendlyName))
{
_friendlyName = (string)_PropertyStore[PKEY.PKEY_DeviceInterface_FriendlyName].Value;
}
if (_PropertyStore.Contains(PKEY.PKEY_DeviceInterface_Icon))
{
var iconPath = (string)_PropertyStore[PKEY.PKEY_DeviceInterface_Icon].Value;
_icon = DeviceIconHelper.GetIconByPath(iconPath);
}
if (_PropertyStore.Contains(PKEY.PKEY_DeviceInterface_RealName))
{
var nameValue = _PropertyStore[PKEY.PKEY_DeviceInterface_RealName].Value;
if (nameValue is string s)
{
_realName = s;
}
}
}
internal MMDevice(IMMDevice realDevice)
{
Marshal.ThrowExceptionForHR(realDevice.GetId(out _Id));
_RealDevice = realDevice;
GetProperty();
}
private AudioDeviceList GetAudioDeviceList()
{
string id;
IMMDevice speakers = AudioUtilities.GetCurrentSpeakers();
speakers.GetId(out id);
//get active playback devices, make sure we mark which one is the current default playback device
return(new AudioDeviceList(AudioUtilities.GetAllActiveSpeakers().Select(d => new AudioDevice(d, d.Id == id))));
}
// Lists all devices, and for each device all processes that are currently playing sound using that device
public static List <SoundInfoDevice> getSoundInfo()
{
List <SoundInfoDevice> soundInfoDevices = new List <SoundInfoDevice>();
DeviceEnumerator enumerator = new DeviceEnumerator();
IMMDeviceEnumerator deviceEnumerator = (IMMDeviceEnumerator)enumerator;
IMMDeviceCollection deviceCollection = deviceEnumerator.EnumAudioEndpoints(EDataFlow.eRender, DeviceStatemask.DEVICE_STATE_ACTIVE);
uint deviceCount = deviceCollection.GetCount();
for (uint i = 0; i < deviceCount; i++)
{
SoundInfoDevice soundInfoDevice = new SoundInfoDevice();
soundInfoDevices.Add(soundInfoDevice);
IMMDevice device = deviceCollection.Item(i);
string deviceId = device.GetId();
soundInfoDevice.ID = deviceId;
IMMPropertyStore propertyStore = device.OpenPropertyStore(ProperyStoreMode.STGM_READ);
PropertyKey propertyKeyDeviceDesc = new PropertyKey();
propertyKeyDeviceDesc.fmtid = new Guid(0xa45c254e, 0xdf1c, 0x4efd, 0x80, 0x20, 0x67, 0xd1, 0x46, 0xa8, 0x50, 0xe0);
propertyKeyDeviceDesc.pid = 2;
PropVariant deviceNamePtr = propertyStore.GetValue(ref propertyKeyDeviceDesc);
string deviceName = Marshal.PtrToStringUni(deviceNamePtr.pszVal);
soundInfoDevice.name = deviceName;
Guid guidAudioSessionManager2 = new Guid("77AA99A0-1BD6-484F-8BC7-2C654C9A9B6F");
IAudioSessionManager2 audioSessionManager = (IAudioSessionManager2)device.Activate(ref guidAudioSessionManager2, (int)ClsCtx.CLSCTX_ALL, IntPtr.Zero);
IAudioSessionEnumerator sessionEnumerator = audioSessionManager.GetSessionEnumerator();
int sessionCount = sessionEnumerator.GetCount();
for (int j = 0; j < sessionCount; j++)
{
IAudioSessionControl audioSessionControl = sessionEnumerator.GetSession(j);
IAudioSessionControl2 audioSessionControl2 = (IAudioSessionControl2)audioSessionControl;
AudioSessionState state = audioSessionControl.GetState();
if (state == AudioSessionState.AudioSessionStateActive)
{
SoundInfoSession soundInfoSession = new SoundInfoSession();
soundInfoDevice.sessions.Add(soundInfoSession);
string displayName = audioSessionControl.GetDisplayName();
string iconPath = audioSessionControl.GetIconPath();
int processId = audioSessionControl2.GetProcessId();
string processName = Process.GetProcessById(processId).MainWindowTitle;
soundInfoSession.pid = processId;
soundInfoSession.windowName = processName;
}
}
}
return(soundInfoDevices);
}
private static string GetDefaultDeviceId(IMMDeviceEnumerator deviceEnumerator, DataFlows dataFlow, DeviceRoles role)
{
IMMDevice _device = null;
Marshal.ThrowExceptionForHR(deviceEnumerator.GetDefaultAudioEndpoint(dataFlow, role, out _device));
string ID;
Marshal.ThrowExceptionForHR(_device.GetId(out ID));
return(ID);
}
internal AudioDevice(IMMDevice device)
{
_device = device;
string id;
_device.GetId(out id);
this.DeviceId = id;
IPropertyStore ips;
_device.OpenPropertyStore(StorageAccessMode.Read, out ips);
var pk = PropertyKeys.DeviceFriendlyName;
PropertyVariant val;
ips.GetValue(ref pk, out val);
this.Name = val.Value.ToString();
}
void RefreshDevices()
{
lock (this)
{
IMMDeviceCollection IMMDeviceCollection;
_IMMDeviceEnumerator.EnumAudioEndpoints(EDataFlow.eRender, 0xF, out IMMDeviceCollection);
uint deviceCount = 0;
IMMDeviceCollection.GetCount(out deviceCount);
for (uint n = 0; n < deviceCount; n++)
{
IMMDevice IMMDevice;
IMMDeviceCollection.Item(n, out IMMDevice);
string uid = "";
IMMDevice.GetId(out uid);
if (!_PlaybackDevices.ContainsKey(uid))
{
_PlaybackDevices.Add(uid, new PlaybackDevice_WindowsCoreApi(IMMDevice));
}
}
{
IMMDevice Default;
_IMMDeviceEnumerator.GetDefaultAudioEndpoint(EDataFlow.eRender, 0x0, out Default);
string uid = "";
Default.GetId(out uid);
if (!_PlaybackDevices.ContainsKey(uid))
{
_PlaybackDevices.Add(uid, new PlaybackDevice_WindowsCoreApi(Default));
}
_PlaybackDevices[uid]._Default = true;
}
_IMMDeviceEnumerator.EnumAudioEndpoints(EDataFlow.eCapture, 0xF, out IMMDeviceCollection);
deviceCount = 0;
IMMDeviceCollection.GetCount(out deviceCount);
for (uint n = 0; n < deviceCount; n++)
{
IMMDevice IMMDevice;
IMMDeviceCollection.Item(n, out IMMDevice);
string uid = "";
IMMDevice.GetId(out uid);
if (!_RecordingDevices.ContainsKey(uid))
{
_RecordingDevices.Add(uid, new RecordingDevice_WindowsCoreApi(IMMDevice));
}
}
}
}
/// <summary>
/// Gets the friendly name of the specified device.
/// </summary>
/// <param name="device">The <see cref="IMMDevice"/> interface of the device.</param>
/// <returns>The friendly name of the device.</returns>
internal static string GetDeviceFriendlyName(IMMDevice device)
{
string deviceId = device.GetId();
IPropertyStore propertyStore = device.OpenPropertyStore(StgmRead);
PropVariant friendlyNameProperty = propertyStore.GetValue(PKeyDeviceFriendlyName);
Marshal.ReleaseComObject(propertyStore);
string friendlyName = (string)friendlyNameProperty.Value;
friendlyNameProperty.Clear();
return(friendlyName);
}
internal AudioDevice(IMMDevice device)
{
_device = device;
string id;
_device.GetId(out id);
this.DeviceId = id;
IPropertyStore ips;
_device.OpenPropertyStore(StorageAccessMode.Read, out ips);
var pk = PropertyKeys.DeviceFriendlyName;
PropertyVariant val;
ips.GetValue(ref pk, out val);
this.Name = val.Value.ToString();
}
private static bool DeviceIsValid(IMMDevice device)
{
try
{
string id;
EDeviceState state;
device.GetId(out id);
device.GetState(out state);
return(true);
}
catch
{
return(false);
}
}
internal MMDevice(IMMDevice realDevice)
{
_RealDevice = realDevice;
GetPropertyInformation();
Marshal.ThrowExceptionForHR(_RealDevice.GetId(out _id));
IMMEndpoint ep = _RealDevice as IMMEndpoint;
Marshal.ThrowExceptionForHR(ep.GetDataFlow(out _dataFlow));
Marshal.ThrowExceptionForHR(_RealDevice.GetState(out _state));
if (_PropertyStore.Contains(PKEY.PKEY_DeviceInterface_FriendlyName))
_friendlyName = (string)_PropertyStore[PKEY.PKEY_DeviceInterface_FriendlyName].Value;
}
public IAudioDevice GetDefaultDevice(ERole eRole = ERole.eMultimedia)
{
IMMDevice device = null;
try
{
device = _enumerator.GetDefaultAudioEndpoint(Flow, ERole.eMultimedia);
}
catch (Exception ex) when(ex.Is(HRESULT.ERROR_NOT_FOUND))
{
// Expected.
}
_devices.TryFind(device.GetId(), out var dev);
return(dev);
}
private static AudioDevice CreateDevice(IMMDevice dev)
{
if (dev == null)
{
return(null);
}
string id;
dev.GetId(out id);
DEVICE_STATE state;
dev.GetState(out state);
Dictionary <string, object> properties = new Dictionary <string, object>();
IPropertyStore store;
dev.OpenPropertyStore(STGM.STGM_READ, out store);
if (store != null)
{
int propCount;
store.GetCount(out propCount);
for (int j = 0; j < propCount; j++)
{
PROPERTYKEY pk;
if (store.GetAt(j, out pk) == 0)
{
PROPVARIANT value = new PROPVARIANT();
int hr = store.GetValue(ref pk, ref value);
object v = value.GetValue();
try
{
if (value.vt != VARTYPE.VT_BLOB) // for some reason, this fails?
{
PropVariantClear(ref value);
}
}
catch
{
}
string name = pk.ToString();
properties[name] = v;
}
}
}
return(new AudioDevice(id, (AudioDeviceState)state, properties));
}
private void LoadProperties(IMMDevice device)
{
ComThread.Assert();
//Load values
Marshal.ThrowExceptionForHR(device.GetId(out _realId));
Marshal.ThrowExceptionForHR(device.GetState(out _state));
// ReSharper disable once SuspiciousTypeConversion.Global
var ep = device as IMMEndpoint;
if (ep != null)
{
ep.GetDataFlow(out _dataFlow);
}
GetPropertyInformation(device);
}
internal MMDevice(IMMDevice realDevice)
{
_RealDevice = realDevice;
GetPropertyInformation();
Marshal.ThrowExceptionForHR(_RealDevice.GetId(out _id));
IMMEndpoint ep = _RealDevice as IMMEndpoint;
Marshal.ThrowExceptionForHR(ep.GetDataFlow(out _dataFlow));
Marshal.ThrowExceptionForHR(_RealDevice.GetState(out _state));
if (_PropertyStore.Contains(PKEY.PKEY_DeviceInterface_FriendlyName))
{
_friendlyName = (string)_PropertyStore[PKEY.PKEY_DeviceInterface_FriendlyName].Value;
}
}
public AudioDevice(IMMDevice device)
{
_device = device;
_dispatcher = App.Current.Dispatcher;
_id = device.GetId();
Trace.WriteLine($"AudioDevice Create {_id}");
_deviceVolume = device.Activate <IAudioEndpointVolume>();
_deviceVolume.RegisterControlChangeNotify(this);
_meter = device.Activate <IAudioMeterInformation>();
_sessions = new AudioDeviceSessionCollection(this, _device);
_deviceVolume.GetMasterVolumeLevelScalar(out _volume);
_isMuted = _deviceVolume.GetMute() != 0;
ReadDisplayName();
}
private static AudioDevice CreateDevice(IMMDevice dev)
{
if (dev == null)
return null;
string id;
dev.GetId(out id);
DEVICE_STATE state;
dev.GetState(out state);
Dictionary<string, object> properties = new Dictionary<string, object>();
IPropertyStore store;
dev.OpenPropertyStore(STGM.STGM_READ, out store);
if (store != null)
{
int propCount;
store.GetCount(out propCount);
for (int j = 0; j < propCount; j++)
{
PROPERTYKEY pk;
if (store.GetAt(j, out pk) == 0)
{
PROPVARIANT value = new PROPVARIANT();
int hr = store.GetValue(ref pk, ref value);
object v = value.GetValue();
try
{
if (value.vt != VARTYPE.VT_BLOB) // for some reason, this fails?
{
PropVariantClear(ref value);
}
}
catch
{
}
string name = pk.ToString();
properties[name] = v;
}
}
}
return new AudioDevice(id, (AudioDeviceState)state, properties);
}
public AudioDeviceSessionCollection(IAudioDevice parent, IMMDevice device, Dispatcher foregroundDispatcher)
{
_parent = new WeakReference <IAudioDevice>(parent);
_dispatcher = foregroundDispatcher;
try
{
_sessionManager = device.Activate <IAudioSessionManager2>();
_sessionManager.RegisterSessionNotification(this);
var enumerator = _sessionManager.GetSessionEnumerator();
int count = enumerator.GetCount();
for (int i = 0; i < count; i++)
{
CreateAndAddSession(enumerator.GetSession(i));
}
}
catch (Exception ex)
{
Trace.WriteLine($"AudioDeviceSessionCollection Create dev={device.GetId()} {ex}");
}
}
private void QueryDefaultCommunicationsDevice()
{
Trace.WriteLine("AudioDeviceManager QueryDefaultCommunicationsDevice");
IMMDevice device = null;
try
{
device = _enumerator.GetDefaultAudioEndpoint(EDataFlow.eRender, ERole.eCommunications);
}
catch (Exception ex) when(ex.Is(Error.ERROR_NOT_FOUND))
{
// Expected.
}
string newDeviceId = device?.GetId();
var currentDeviceId = _defaultCommunicationsDevice?.Id;
if (currentDeviceId != newDeviceId)
{
FindDevice(newDeviceId, out _defaultCommunicationsDevice);
}
}
public string GetDefaultDevice(EDataFlow dataFlow, ERole role)
{
IMMDevice device = null;
try
{
_realEnumerator.GetDefaultAudioEndpoint(dataFlow, role, out device);
string devId;
device.GetId(out devId);
return(devId);
}
catch (Exception)
{
return(null);
}
finally
{
if (device != null)
{
Marshal.ReleaseComObject(device);
}
}
}
private void QueryDefaultPlaybackDevice()
{
Trace.WriteLine("AudioDeviceManager QueryDefaultPlaybackDevice");
IMMDevice device = null;
try
{
device = _enumerator.GetDefaultAudioEndpoint(EDataFlow.eRender, ERole.eMultimedia);
}
catch (Exception ex) when(ex.Is(Error.ERROR_NOT_FOUND))
{
// Expected.
}
string newDeviceId = device?.GetId();
var currentDeviceId = _defaultPlaybackDevice?.Id;
if (currentDeviceId != newDeviceId)
{
_devices.TryFind(newDeviceId, out _defaultPlaybackDevice);
DefaultChanged?.Invoke(this, _defaultPlaybackDevice);
}
}
private void LoadProperties(IMMDevice device)
{
ComThread.Assert();
//Load values
Marshal.ThrowExceptionForHR(device.GetId(out _realId));
Marshal.ThrowExceptionForHR(device.GetState(out _state));
// ReSharper disable once SuspiciousTypeConversion.Global
var ep = device as IMMEndpoint;
if (ep != null)
ep.GetDataFlow(out _dataFlow);
GetPropertyInformation(device);
}
