public static void Init()
{
try
{
var src = ConvertToUInt("dOut");
uint theRunLoop = 0;
var property = new AudioObjectPropertyAddress(
kAudioHardwarePropertyDefaultOutputDevice,
(uint)AudioObjectPropertyScope.Global,
(uint)AudioObjectPropertyElement.Master);
AudioObjectAddPropertyListener(1, ref property, OutputDidChange, IntPtr.Zero);
//var defaultDevice = GetCurrentOutputDevice();
//// var name = GetDeviceName (defaultDevice);
//var sourceId = GetDeviceSourceId(defaultDevice);
//// var trasnport = ConvertToString (GetDeviceProperty (defaultDevice, AudioDevicePropertyTransportType));
//var theAddress = new AudioObjectPropertyAddress(
// AudioDevicePropertyDataSource,
// (uint)AudioObjectPropertyScope.Output,
// (uint)AudioObjectPropertyElement.Master);
//AudioObjectAddPropertyListener(1, ref theAddress, OutputDidChange, IntPtr.Zero);
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
}
static extern int AudioObjectSetPropertyData(
uint inObjectID,
ref AudioObjectPropertyAddress inAddress,
ref uint inQualifierDataSize,
ref IntPtr inQualifierData,
ref uint ioDataSize,
ref uint inData
);
public static uint GetDeviceId(uint deviceId)
{
uint dataSourceId;
uint size = (uint)Marshal.SizeOf(typeof(uint));
var theAddress = new AudioObjectPropertyAddress(
AudioDevicePropertyDataSource,
(uint)AudioObjectPropertyScope.Output,
(uint)AudioObjectPropertyElement.Master);
uint inQualifierDataSize = 0;
IntPtr inQualifierData = IntPtr.Zero;
var err = AudioObjectGetPropertyData(deviceId, ref theAddress, ref inQualifierDataSize, ref inQualifierData, ref size, out dataSourceId);
//if (err != 0)
//throw new AudioUnitException((int)err);
return(dataSourceId);
}
static bool SetDeviceProperty(AudioObjectPropertyAddress theAddress, uint deviceId, uint data)
{
uint dataSourceId = data;
uint size = (uint)Marshal.SizeOf(typeof(UInt64));
uint inQualifierDataSize = 0;
IntPtr inQualifierData = IntPtr.Zero;
var err = AudioObjectSetPropertyData(deviceId, ref theAddress, ref inQualifierDataSize, ref inQualifierData, ref size, ref dataSourceId);
if (err != 0)
{
var error = new NSError(NSError.OsStatusErrorDomain, err);
Console.WriteLine(error);
return(false);
}
return(true);;
}
public static uint GetDeviceProperty(uint deviceId, uint property)
{
uint dataSourceId;
uint size = (uint)Marshal.SizeOf(typeof(UInt64));
var theAddress = new AudioObjectPropertyAddress(
property,
(uint)AudioObjectPropertyScope.Output,
(uint)AudioObjectPropertyElement.Master);
uint inQualifierDataSize = 0;
IntPtr inQualifierData = IntPtr.Zero;
var err = AudioObjectGetPropertyData(deviceId, ref theAddress, ref inQualifierDataSize, ref inQualifierData, ref size, out dataSourceId);
if (err != 0)
{
var error = new NSError(NSError.OsStatusErrorDomain, err);
Console.WriteLine(error);
}
return(dataSourceId);
}
public static uint GetCurrentOutputDevice()
{
uint outputDevice;
uint size = (uint)Marshal.SizeOf(typeof(uint));
var theAddress = new AudioObjectPropertyAddress(
AudioObjectPropertySelector.DefaultSystemOutputDevice,
AudioObjectPropertyScope.Global,
AudioObjectPropertyElement.Master);
uint inQualifierDataSize = 0;
IntPtr inQualifierData = IntPtr.Zero;
var err = AudioObjectGetPropertyData(1, ref theAddress, ref inQualifierDataSize, ref inQualifierData, ref size, out outputDevice);
if (err != 0)
{
var status = (AudioUnitStatus)err;
Console.WriteLine(status);
}
return(outputDevice);
}
static extern int AudioObjectAddPropertyListener(uint inObjectID,
ref AudioObjectPropertyAddress inAddress,
OutputChange callback, IntPtr clientData);
static void OutputDidChange(uint inObjectID, uint inNumberAddresses, AudioObjectPropertyAddress inAddresses, IntPtr clientData)
{
Console.WriteLine("Output Changed");
OutputChanged?.Invoke();
}
