private void ProcessAdded(ObservableProcess process)
{
if (process == null)
{
throw new ArgumentNullException(nameof(process));
}
while (applicationDevicePreferences == null)
{
Task.Delay(250);
}
SharedModels.ApplicationDevicePreference applicationDevicePreference = applicationDevicePreferences.Applications.FirstOrDefault(x => x.Name == process.ProcessName);
if (applicationDevicePreference == null)
{
applicationDevicePreference = new SharedModels.ApplicationDevicePreference();
}
AudioInterface preferredRender = GetApplicationDevicePreference(DataFlow.Render, applicationDevicePreference, process);
if (preferredRender != null)
{
ChangeDefaultApplicationDevice(preferredRender, process);
}
AudioInterface preferredCapture = GetApplicationDevicePreference(DataFlow.Capture, applicationDevicePreference, process);
if (preferredCapture != null)
{
ChangeDefaultApplicationDevice(preferredCapture, process);
}
}
private void CheckApplicationDeviceChanges()
{
foreach (ObservableProcess process in ProcessCollection.Processes)
{
AudioInterface windowsPreferredRender = GetDefaultApplicationDevice(DataFlow.Render, process);
AudioInterface windowsPreferredCapture = GetDefaultApplicationDevice(DataFlow.Capture, process);
SharedModels.ApplicationDevicePreference applicationDevicePreference = applicationDevicePreferences.Applications.FirstOrDefault(x => x.Name == process.ProcessName);
string preferredRenderId = applicationDevicePreference?.Devices?.RenderDeviceId;
string preferredCaptureId = applicationDevicePreference?.Devices?.CaptureDeviceId;
bool windowsThinksDefault = windowsPreferredRender == null && windowsPreferredCapture == null;
bool noPreferences = preferredRenderId == null && preferredCaptureId == null;
// There is agreement that this process uses the default devices.
if (noPreferences && windowsThinksDefault)
{
continue;
}
// Windows doesn't think this process uses the default device and we don't have any preferences for the process.
if (applicationDevicePreference == default && !windowsThinksDefault)
{
ChangeDefaultApplicationDevice(windowsPreferredRender, process);
ChangeDefaultApplicationDevice(windowsPreferredCapture, process);
}
// Windows doesn't think this process uses the default device. We agree, but we disagree on the preferred audio device.
else if (!windowsThinksDefault)
{
bool changeNeeded = preferredRenderId != windowsPreferredRender?.ID;
changeNeeded = changeNeeded || preferredCaptureId != windowsPreferredCapture?.ID;
if (changeNeeded)
{
Trace.WriteLine($"Preference conflict detected between Windows Settings and Stream Controller for process {process.ProcessName}.");
}
if (process.AudioDeviceTogglingNeeded)
{
ToggleDefaultApplicationDevice(process);
process.AudioDeviceTogglingNeeded = false;
}
}
// Windows thinks the process uses the default device. We disagree and are waiting for the process to make a sound.
else if (windowsThinksDefault)
{
EarTrumpet.DataModel.WindowsAudio.Internal.AudioPolicyConfig audioPolicyConfig;
if (preferredRenderId != null)
{
audioPolicyConfig = new EarTrumpet.DataModel.WindowsAudio.Internal.AudioPolicyConfig(DataFlow.Render);
audioPolicyConfig.SetDefaultEndPoint(preferredRenderId, process.Id);
}
if (preferredCaptureId != null)
{
audioPolicyConfig = new EarTrumpet.DataModel.WindowsAudio.Internal.AudioPolicyConfig(DataFlow.Capture);
audioPolicyConfig.SetDefaultEndPoint(preferredCaptureId, process.Id);
}
}
}
}
private void AddApplicationDevicePreference(ObservableProcess process, AudioInterface audioInterface)
{
SharedModels.ApplicationDevicePreference applicationDevicePreference = applicationDevicePreferences.Applications.FirstOrDefault(x => x.Name == process.ProcessName);
if (applicationDevicePreference == default)
{
applicationDevicePreference = new SharedModels.ApplicationDevicePreference()
{
Name = process.ProcessName,
Devices = new SharedModels.DefaultDevicePreference()
};
applicationDevicePreferences.Applications.Add(applicationDevicePreference);
}
_ = audioInterface.DataFlow switch
{
DataFlow.Render => applicationDevicePreference.Devices.RenderDeviceId = audioInterface.ID,
DataFlow.Capture => applicationDevicePreference.Devices.CaptureDeviceId = audioInterface.ID,
_ => null
};
jsonDataDirty = true;
}
private void RemoveOldApplicationDevicePreference(ObservableProcess process, AudioInterface audioInterface)
{
SharedModels.ApplicationDevicePreference applicationDevicePreference = applicationDevicePreferences.Applications.FirstOrDefault(x => x.Name == process.ProcessName);
if (applicationDevicePreference == default)
{
return;
}
string previousPreferredInterface = null;
switch (audioInterface.DataFlow)
{
case DataFlow.Render:
previousPreferredInterface = applicationDevicePreference.Devices.RenderDeviceId;
applicationDevicePreference.Devices.RenderDeviceId = null;
break;
case DataFlow.Capture:
previousPreferredInterface = applicationDevicePreference.Devices.CaptureDeviceId;
applicationDevicePreference.Devices.CaptureDeviceId = null;
break;
default:
return;
}
if (applicationDevicePreference.Devices.RenderDeviceId == null && applicationDevicePreference.Devices.CaptureDeviceId == null)
{
applicationDevicePreferences.Applications.Remove(applicationDevicePreference);
}
SharedModels.DeviceApplicationPreference deviceApplicationPreference = deviceApplicationPreferences.Devices.FirstOrDefault(x => x.Id == previousPreferredInterface);
if (deviceApplicationPreference == default)
{
return;
}
deviceApplicationPreference.Applications.Remove(process.ProcessName);
if (deviceApplicationPreference.Applications.Count == 0)
{
deviceApplicationPreferences.Devices.Remove(deviceApplicationPreference);
}
}
private AudioInterface GetApplicationDevicePreference(DataFlow dataFlow, SharedModels.ApplicationDevicePreference applicationDevicePreference, ObservableProcess process)
{
string preferredInterfaceId = dataFlow switch
{
DataFlow.Render => applicationDevicePreference?.Devices?.RenderDeviceId,
DataFlow.Capture => applicationDevicePreference?.Devices?.CaptureDeviceId,
_ => null
};
if (preferredInterfaceId != null)
{
return(GetAudioInterfaceById(preferredInterfaceId));
}
AudioInterface audioInterface = GetDefaultApplicationDevice(dataFlow, process);
if (audioInterface != null)
{
RemoveOldApplicationDevicePreference(process, audioInterface);
AddApplicationDevicePreference(process, audioInterface);
AddDeviceApplicationPreference(audioInterface, process);
return(audioInterface);
}
return(null);
}