public void CopyIconTest ()
{
TestRuntime.AssertXcodeVersion (12, TestRuntime.MinorXcode12APIMismatch);
AudioComponentDescription cd = new AudioComponentDescription () {
ComponentType = AudioComponentType.Output,
#if MONOMAC
#if NET
ComponentSubType = AudioUnitSubType.VoiceProcessingIO,
#else
ComponentSubType = (int)AudioUnitSubType.VoiceProcessingIO,
#endif
#else
#if NET
ComponentSubType = (AudioUnitSubType) AudioTypeOutput.Remote,
#else
ComponentSubType = 0x72696f63, // Remote_IO
#endif
#endif
ComponentManufacturer = AudioComponentManufacturerType.Apple
};
AudioComponent component = AudioComponent.FindComponent (ref cd);
Assert.DoesNotThrow ( () => {
var icon = component.CopyIcon (); // ensuring that the manual binding does not throw, we do not care about the result
});
}
public void DisposeMethodTest ()
{
// Test case from bxc #5410
// Create instance of AudioUnit object
AudioComponentDescription cd = new AudioComponentDescription () {
ComponentType = AudioComponentType.Output,
#if MONOMAC
#if NET
ComponentSubType = AudioUnitSubType.VoiceProcessingIO,
#else
ComponentSubType = (int)AudioUnitSubType.VoiceProcessingIO,
#endif
#else
#if NET
ComponentSubType = (AudioUnitSubType) AudioTypeOutput.Remote,
#else
ComponentSubType = 0x72696f63, // Remote_IO
#endif
#endif
ComponentManufacturer = AudioComponentManufacturerType.Apple
};
AudioComponent component = AudioComponent.FindComponent (ref cd);
var audioUnit = component.CreateAudioUnit ();
audioUnit.Dispose ();
}
public void GetSetNullComponentList()
{
TestRuntime.AssertXcodeVersion(9, 0);
var types = new List <AudioTypeOutput> {
AudioTypeOutput.Generic, AudioTypeOutput.Remote, AudioTypeOutput.VoiceProcessingIO
};
foreach (var t in types)
{
var resources = new ResourceUsageInfo();
resources.IOKitUserClient = new string[] { "CustomUserClient1" };
resources.MachLookUpGlobalName = new string[] { "MachServiceName1" };
resources.NetworkClient = false;
resources.TemporaryExceptionReadWrite = false;
var componentInfo = new AudioComponentInfo();
componentInfo.Type = t.ToString();
componentInfo.Subtype = "XMPL";
componentInfo.Name = "XMPL";
componentInfo.Version = 1;
componentInfo.ResourceUsage = resources;
var component = AudioComponent.FindComponent(t);
if (component == null)
{
continue;
}
//monotouchtests does not have permissions to deal with the hwd.
Assert.Throws <ArgumentNullException> (() => component.ComponentList = null);
}
}
void prepareAudioUnit()
{
// creating an AudioComponentDescription of the RemoteIO AudioUnit
AudioComponentDescription cd = new AudioComponentDescription()
{
componentType = AudioComponentDescription.AudioComponentType.kAudioUnitType_Output,
componentSubType = AudioComponentDescription.AudioComponentSubType.kAudioUnitSubType_RemoteIO,
componentManufacturer = AudioComponentDescription.AudioComponentManufacturerType.kAudioUnitManufacturer_Apple,
componentFlags = 0,
componentFlagsMask = 0
};
// Getting AudioComponent using the audio component description
_audioComponent = AudioComponent.FindComponent(cd);
// creating an audio unit instance
_audioUnit = AudioUnit.CreateInstance(_audioComponent);
// setting audio format
_audioUnit.SetAudioFormat(_dstFormat,
AudioUnit.AudioUnitScopeType.kAudioUnitScope_Input,
0 // Remote Output
);
// setting callback method
_audioUnit.RenderCallback += new EventHandler <AudioUnitEventArgs>(_audioUnit_RenderCallback);
_audioUnit.Initialize();
}
void prepareAudioUnit()
{
// Creating AudioComponentDescription instance of RemoteIO Audio Unit
AudioComponentDescription cd = new AudioComponentDescription()
{
componentType = AudioComponentDescription.AudioComponentType.kAudioUnitType_Output,
componentSubType = AudioComponentDescription.AudioComponentSubType.kAudioUnitSubType_RemoteIO,
componentManufacturer = AudioComponentDescription.AudioComponentManufacturerType.kAudioUnitManufacturer_Apple,
componentFlags = 0,
componentFlagsMask = 0
};
// Getting AudioComponent from the description
_component = AudioComponent.FindComponent(cd);
// Getting Audiounit
_audioUnit = AudioUnit.CreateInstance(_component);
// setting AudioStreamBasicDescription
int AudioUnitSampleTypeSize;
if (MonoTouch.ObjCRuntime.Runtime.Arch == MonoTouch.ObjCRuntime.Arch.SIMULATOR)
{
AudioUnitSampleTypeSize = sizeof(float);
}
else
{
AudioUnitSampleTypeSize = sizeof(int);
}
AudioStreamBasicDescription audioFormat = new AudioStreamBasicDescription()
{
SampleRate = _sampleRate,
Format = AudioFormatType.LinearPCM,
//kAudioFormatFlagsAudioUnitCanonical = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagsNativeEndian | kAudioFormatFlagIsPacked | kAudioFormatFlagIsNonInterleaved | (kAudioUnitSampleFractionBits << kLinearPCMFormatFlagsSampleFractionShift),
FormatFlags = (AudioFormatFlags)((int)AudioFormatFlags.IsSignedInteger | (int)AudioFormatFlags.IsPacked | (int)AudioFormatFlags.IsNonInterleaved | (int)(kAudioUnitSampleFractionBits << (int)AudioFormatFlags.LinearPCMSampleFractionShift)),
ChannelsPerFrame = 2,
BytesPerPacket = AudioUnitSampleTypeSize,
BytesPerFrame = AudioUnitSampleTypeSize,
FramesPerPacket = 1,
BitsPerChannel = 8 * AudioUnitSampleTypeSize,
Reserved = 0
};
_audioUnit.SetAudioFormat(audioFormat, AudioUnit.AudioUnitScopeType.kAudioUnitScope_Input, 0);
// setting callback
/*
* if (MonoTouch.ObjCRuntime.Runtime.Arch == MonoTouch.ObjCRuntime.Arch.SIMULATOR)
* _audioUnit.RenderCallback += new EventHandler<AudioUnitEventArgs>(simulator_callback);
* else
* _audioUnit.RenderCallback += new EventHandler<AudioUnitEventArgs>(device_callback);
* */
_audioUnit.RenderCallback += new EventHandler <AudioUnitEventArgs>(device_callback);
}
/// <summary>
/// Builds the audio graph, initializes the mixer.
/// </summary>
protected void BuildAUGraph()
{
Graph = new AUGraph();
// use splitter sub-type to create file writer tap
// output unit. output to default audio device
int outputNode = Graph.AddNode(AudioComponentDescription.CreateOutput(AudioTypeOutput.Default));
// mixer unit
//int mixerNode = Graph.AddNode(AudioComponentDescription.CreateMixer(AudioTypeMixer.MultiChannel));
//var mixerDesc = AudioComponentDescription.CreateMixer(AudioTypeMixer.MultiChannel);
MixerNode = AudioComponent.FindComponent(AudioTypeMixer.MultiChannel).CreateAudioUnit();
// connect the mixer's output to the output's input
//if (Graph.ConnnectNodeInput(mixerNode, 0, outputNode, 0) != AUGraphError.OK)
//{
// throw new ApplicationException();
//}
// open the graph
if (Graph.TryOpen() != 0)
{
throw new ApplicationException();
}
Graph.SetNodeInputCallback(outputNode, 0, OutputRenderDelegate);
Output = Graph.GetNodeInfo(outputNode);
//MixerNode = Graph.GetNodeInfo(mixerNode);
// must set ouput volume because it defaults to 0
MixerNode.SetParameter(AudioUnitParameterType.MultiChannelMixerVolume, 1, AudioUnitScopeType.Output, 0);
//MixerNode.SetMaximumFramesPerSlice(4096, AudioUnitScopeType.Global);
ConfigureMixerInputs();
AudioStreamBasicDescription desc;
// set output stream format
desc = MixerNode.GetAudioFormat(AudioUnitScopeType.Output);
desc.SampleRate = Metronome.SampleRate;
if (MixerNode.SetFormat(desc, AudioUnitScopeType.Output) != AudioUnitStatus.OK)
{
throw new ApplicationException();
}
// now that we;ve set everything up we can initialize the graph, this will aslo validate the connections
if (Graph.Initialize() != AUGraphError.OK)
{
throw new ApplicationException();
}
MixerNode.Initialize();
}
public Audio(DisposableI parent)
: base(parent)
{
#if OSX
component = AudioComponent.FindComponent(AudioTypeOutput.Default);
#else
component = AudioComponent.FindComponent(AudioTypeOutput.Remote);
#endif
if (component == null)
{
Debug.ThrowError("Audio", "Failed to find AudioComponent");
}
}
void prepareAudioUnit()
{
// Updated for deprecated AudioSession
var session = AVAudioSession.SharedInstance();
NSError error;
if (session == null)
{
var alert = new UIAlertView("Session error", "Unable to create audio session", null, "Cancel");
alert.Show();
alert.Clicked += delegate
{
alert.DismissWithClickedButtonIndex(0, true);
return;
};
}
session.SetActive(true);
session.SetCategory(AVAudioSessionCategory.PlayAndRecord);
session.SetPreferredIOBufferDuration(0.005, out error);
// Getting AudioComponent Remote output
_audioComponent = AudioComponent.FindComponent(AudioTypeOutput.Remote);
// creating an audio unit instance
_audioUnit = new AudioUnit(_audioComponent);
// turning on microphone
_audioUnit.SetEnableIO(true,
AudioUnitScopeType.Input,
1 // Remote Input
);
// setting audio format
_audioUnit.SetAudioFormat(_dstFormat,
AudioUnitScopeType.Input,
0 // Remote Output
);
var format = AudioStreamBasicDescription.CreateLinearPCM(_sampleRate, bitsPerChannel: 32);
format.FormatFlags = AudioStreamBasicDescription.AudioFormatFlagsNativeFloat;
_audioUnit.SetAudioFormat(format, AudioUnitScopeType.Output, 1);
// setting callback method
_audioUnit.SetRenderCallback(_audioUnit_RenderCallback, AudioUnitScopeType.Global);
_audioUnit.Initialize();
_audioUnit.Start();
}
public void DisposeMethodTest()
{
// Test case from bxc #5410
// Create instance of AudioUnit object
AudioComponentDescription cd = new AudioComponentDescription()
{
ComponentType = AudioComponentType.Output,
ComponentSubType = 0x72696f63, // Remote_IO
ComponentManufacturer = AudioComponentManufacturerType.Apple
};
AudioComponent component = AudioComponent.FindComponent(ref cd);
var audioUnit = component.CreateAudioUnit();
audioUnit.Dispose();
}
void prepareAudioUnit()
{
// AudioSession
AudioSession.Initialize();
AudioSession.SetActive(true);
AudioSession.Category = AudioSessionCategory.PlayAndRecord;
AudioSession.PreferredHardwareIOBufferDuration = 0.005f;
// creating an AudioComponentDescription of the RemoteIO AudioUnit
AudioComponentDescription cd = new AudioComponentDescription()
{
componentType = AudioComponentDescription.AudioComponentType.kAudioUnitType_Output,
componentSubType = AudioComponentDescription.AudioComponentSubType.kAudioUnitSubType_RemoteIO,
componentManufacturer = AudioComponentDescription.AudioComponentManufacturerType.kAudioUnitManufacturer_Apple,
componentFlags = 0,
componentFlagsMask = 0
};
// Getting AudioComponent using the audio component description
_audioComponent = AudioComponent.FindComponent(cd);
// creating an audio unit instance
_audioUnit = AudioUnit.CreateInstance(_audioComponent);
// turning on microphone
_audioUnit.SetEnableIO(true,
AudioUnit.AudioUnitScopeType.kAudioUnitScope_Input,
1 // Remote Input
);
// setting audio format
_audioUnit.SetAudioFormat(_dstFormat,
AudioUnit.AudioUnitScopeType.kAudioUnitScope_Input,
0 // Remote Output
);
_audioUnit.SetAudioFormat(AudioUnitUtils.AUCanonicalASBD(_sampleRate, 2),
AudioUnit.AudioUnitScopeType.kAudioUnitScope_Output,
1 // Remote input
);
// setting callback method
_audioUnit.RenderCallback += new EventHandler <AudioUnitEventArgs>(_audioUnit_RenderCallback);
_audioUnit.Initialize();
_audioUnit.Start();
}
void PrepareAudioUnit()
{
// All iPhones and iPads have microphones, but early iPod touches did not
if (!AudioSession.AudioInputAvailable)
{
var noInputAlert = new UIAlertView("No audio input", "No audio input device is currently attached", null, "Ok");
noInputAlert.Show();
return;
}
// Getting AudioComponent Remote output
audioComponent = AudioComponent.FindComponent(AudioTypeOutput.Remote);
CheckValue(audioComponent);
// creating an audio unit instance
audioUnit = new AudioUnit.AudioUnit(audioComponent);
AudioUnitStatus status;
status = audioUnit.SetEnableIO(true, AudioUnitScopeType.Input, 1);
CheckStatus(status);
status = audioUnit.SetEnableIO(true, AudioUnitScopeType.Output, 0);
CheckStatus(status);
dstFormat = new AudioStreamBasicDescription {
SampleRate = AudioSession.CurrentHardwareSampleRate,
Format = AudioFormatType.LinearPCM,
FormatFlags = AudioFormatFlags.IsSignedInteger | AudioFormatFlags.IsNonInterleaved,
BytesPerPacket = 4,
FramesPerPacket = 1,
BytesPerFrame = 4,
ChannelsPerFrame = 2,
BitsPerChannel = 16
};
audioUnit.SetAudioFormat(dstFormat, AudioUnitScopeType.Input, 0);
audioUnit.SetAudioFormat(dstFormat, AudioUnitScopeType.Output, 1);
status = audioUnit.SetRenderCallback(RenderCallback, AudioUnitScopeType.Input, 0);
CheckStatus(status);
}
void prepareAudioUnit()
{
// Creating AudioComponentDescription instance of RemoteIO Audio Unit
var cd = new AudioComponentDescription()
{
componentType = AudioComponentDescription.AudioComponentType.kAudioUnitType_Output,
componentSubType = AudioComponentDescription.AudioComponentSubType.kAudioUnitSubType_RemoteIO,
componentManufacturer = AudioComponentDescription.AudioComponentManufacturerType.kAudioUnitManufacturer_Apple,
componentFlags = 0,
componentFlagsMask = 0
};
// Getting AudioComponent from the description
_component = AudioComponent.FindComponent(cd);
// Getting Audiounit
_audioUnit = AudioUnit.CreateInstance(_component);
// turning on microphone
_audioUnit.SetEnableIO(true,
AudioUnit.AudioUnitScopeType.kAudioUnitScope_Input,
1 // Remote Input
);
// setting AudioStreamBasicDescription
var audioFormat = AudioUnitUtils.AUCanonicalASBD(44100.0, 2);
_audioUnit.SetAudioFormat(audioFormat,
AudioUnit.AudioUnitScopeType.kAudioUnitScope_Input,
0 // Remote output
);
_audioUnit.SetAudioFormat(audioFormat,
AudioUnit.AudioUnitScopeType.kAudioUnitScope_Output,
1 // Remote input
);
// setting callback
_audioUnit.RenderCallback += new EventHandler <AudioUnitEventArgs>(_audioUnit_RenderCallback);
// initialize
_audioUnit.Initialize();
}
void CreateAudioUnit()
{
if (_audioUnit != null)
{
_audioUnit.Dispose();
_audioUnit = null;
}
ResetFormat(2);
var audioUnit = new AudioUnit.AudioUnit(AudioComponent.FindComponent(AudioTypeOutput.Remote));
if (_numInputChannels > 0)
{
audioUnit.SetEnableIO(true, AudioUnitScopeType.Input, 1);
}
audioUnit.SetRenderCallback(AudioUnit_RenderCallback, AudioUnitScopeType.Input);
AudioUnitStatus status;
status = audioUnit.SetFormat(_format, AudioUnitScopeType.Input, 0);
if (status != AudioUnitStatus.OK)
{
throw new Exception("Could not initialize audio unit: " + status);
}
status = audioUnit.SetFormat(_format, AudioUnitScopeType.Output, 1);
if (status != AudioUnitStatus.OK)
{
throw new Exception("Could not initialize audio unit: " + status);
}
var osStatus = audioUnit.Initialize();
if (osStatus != 0)
{
throw new Exception("Could not initialize audio unit: " + osStatus);
}
_audioUnit = audioUnit;
}
public void Callbacks()
{
var audioComponent = AudioComponent.FindComponent(AudioTypeOutput.VoiceProcessingIO);
using var audioUnit = new global::AudioUnit.AudioUnit(audioComponent);
var rv = audioUnit.SetInputCallback(InputCallback, AudioUnitScopeType.Input, 1);
if (rv == AudioUnitStatus.CannotDoInCurrentContext)
{
Assert.Ignore("Can't set input callback"); // No microphone? In a VM? This seems to happen often on bots.
}
Assert.AreEqual(AudioUnitStatus.OK, rv, "SetInputCallback");
Assert.AreEqual(AudioUnitStatus.OK, audioUnit.Initialize(), "Initialize");
try {
Assert.AreEqual(AudioUnitStatus.OK, audioUnit.Start(), "Start");
Assert.IsTrue(inputCallbackEvent.WaitOne(TimeSpan.FromSeconds(1)), "No input callback for 1 second");
} finally {
Assert.AreEqual(AudioUnitStatus.OK, audioUnit.Stop(), "Stop");
}
}
public void GetSetComponentList()
{
TestRuntime.AssertXcodeVersion(9, 0);
#if !MONOMAC
var types = new List <AudioTypeOutput> {
AudioTypeOutput.Generic, AudioTypeOutput.Remote, AudioTypeOutput.VoiceProcessingIO
};
#else
var types = new List <AudioTypeOutput> {
AudioTypeOutput.Generic, AudioTypeOutput.Default, AudioTypeOutput.HAL, AudioTypeOutput.System, AudioTypeOutput.VoiceProcessingIO
};
#endif
foreach (var t in types)
{
var resources = new ResourceUsageInfo();
resources.IOKitUserClient = new string[] { "CustomUserClient1" };
resources.MachLookUpGlobalName = new string[] { "MachServiceName1" };
resources.NetworkClient = false;
resources.TemporaryExceptionReadWrite = false;
var componentInfo = new AudioComponentInfo();
componentInfo.Type = t.ToString();
componentInfo.Subtype = "XMPL";
componentInfo.Name = "XMPL";
componentInfo.Version = 1;
componentInfo.ResourceUsage = resources;
var component = AudioComponent.FindComponent(t);
if (component == null)
{
continue;
}
var l = component.ComponentList;
Assert.IsNull(l, "List is not null.");
l = new AudioComponentInfo[] { componentInfo };
//monotouchtests does not have permissions to deal with the hwd.
Assert.Throws <InvalidOperationException> (() => component.ComponentList = l);
}
}
void prepareAudioUnit()
{
// AudioSession
AudioSession.Initialize();
AudioSession.SetActive(true);
AudioSession.Category = AudioSessionCategory.PlayAndRecord;
AudioSession.PreferredHardwareIOBufferDuration = 0.005f;
// Getting AudioComponent Remote output
_audioComponent = AudioComponent.FindComponent(AudioTypeOutput.Remote);
// creating an audio unit instance
_audioUnit = new AudioUnit(_audioComponent);
// turning on microphone
_audioUnit.SetEnableIO(true,
AudioUnitScopeType.Input,
1 // Remote Input
);
// setting audio format
_audioUnit.SetAudioFormat(_dstFormat,
AudioUnitScopeType.Input,
0 // Remote Output
);
var format = AudioStreamBasicDescription.CreateLinearPCM(_sampleRate, bitsPerChannel: 32);
format.FormatFlags = AudioStreamBasicDescription.AudioFormatFlagsAudioUnitCanonical;
_audioUnit.SetAudioFormat(format, AudioUnitScopeType.Output, 1);
// setting callback method
_audioUnit.SetRenderCallback(_audioUnit_RenderCallback, AudioUnitScopeType.Global);
_audioUnit.Initialize();
_audioUnit.Start();
}
void prepareAudioUnit()
{
// AudioSession
AudioSession.Initialize();
AudioSession.SetActive(true);
AudioSession.Category = AudioSessionCategory.PlayAndRecord;
AudioSession.PreferredHardwareIOBufferDuration = 0.01f;
// Creating AudioComponentDescription instance of RemoteIO Audio Unit
var cd = new AudioComponentDescription()
{
componentType = AudioComponentDescription.AudioComponentType.kAudioUnitType_Output,
componentSubType = AudioComponentDescription.AudioComponentSubType.kAudioUnitSubType_RemoteIO,
componentManufacturer = AudioComponentDescription.AudioComponentManufacturerType.kAudioUnitManufacturer_Apple,
componentFlags = 0,
componentFlagsMask = 0
};
// Getting AudioComponent from the description
_component = AudioComponent.FindComponent(cd);
// Getting Audiounit
_audioUnit = AudioUnit.CreateInstance(_component);
// turning on microphone
_audioUnit.SetEnableIO(true,
AudioUnit.AudioUnitScopeType.kAudioUnitScope_Input,
1 // Remote Input
);
// setting AudioStreamBasicDescription
int AudioUnitSampleTypeSize = (MonoTouch.ObjCRuntime.Runtime.Arch == MonoTouch.ObjCRuntime.Arch.SIMULATOR) ? sizeof(float) : sizeof(uint);
AudioStreamBasicDescription audioFormat = new AudioStreamBasicDescription()
{
SampleRate = _sampleRate,
Format = AudioFormatType.LinearPCM,
//kAudioFormatFlagsAudioUnitCanonical = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagsNativeEndian | kAudioFormatFlagIsPacked | kAudioFormatFlagIsNonInterleaved | (kAudioUnitSampleFractionBits << kLinearPCMFormatFlagsSampleFractionShift),
FormatFlags = (AudioFormatFlags)((int)AudioFormatFlags.IsSignedInteger | (int)AudioFormatFlags.IsPacked | (int)AudioFormatFlags.IsNonInterleaved | (int)(kAudioUnitSampleFractionBits << (int)AudioFormatFlags.LinearPCMSampleFractionShift)),
ChannelsPerFrame = 2,
BytesPerPacket = AudioUnitSampleTypeSize,
BytesPerFrame = AudioUnitSampleTypeSize,
FramesPerPacket = 1,
BitsPerChannel = 8 * AudioUnitSampleTypeSize,
Reserved = 0
};
_audioUnit.SetAudioFormat(audioFormat,
AudioUnit.AudioUnitScopeType.kAudioUnitScope_Input,
0 // Remote output
);
_audioUnit.SetAudioFormat(audioFormat,
AudioUnit.AudioUnitScopeType.kAudioUnitScope_Output,
1 // Remote input
);
// setting callback
/*
* if (MonoTouch.ObjCRuntime.Runtime.Arch == MonoTouch.ObjCRuntime.Arch.SIMULATOR)
* _audioUnit.RenderCallback += new EventHandler<AudioUnitEventArgs>(simulator_callback);
* else
* _audioUnit.RenderCallback += new EventHandler<AudioUnitEventArgs>(device_callback);
*/
_audioUnit.RenderCallback += new EventHandler <AudioUnitEventArgs>(_callback);
// initialize
_audioUnit.Initialize();
}
public void InitAudio()
{
var session = AVAudioSession.SharedInstance();
NSError error;
if (session == null)
{
var alert = new UIAlertView("Session error", "Unable to create audio session", null, "Cancel");
alert.Show();
alert.Clicked += delegate
{
alert.DismissWithClickedButtonIndex(0, true);
return;
};
}
session.SetActive(false);
session.SetCategory(AVAudioSessionCategory.Playback, AVAudioSessionCategoryOptions.AllowBluetooth | AVAudioSessionCategoryOptions.DefaultToSpeaker | AVAudioSessionCategoryOptions.DuckOthers); //Neded so we can listen to remote events
notification = AVAudioSession.Notifications.ObserveInterruption((sender, args) => {
/* Handling audio interuption here */
if (args.InterruptionType == AVAudioSessionInterruptionType.Began)
{
if (_audioUnit != null && _audioUnit.IsPlaying)
{
_audioUnit.Stop();
}
}
System.Diagnostics.Debug.WriteLine("Notification: {0}", args.Notification);
System.Diagnostics.Debug.WriteLine("InterruptionType: {0}", args.InterruptionType);
System.Diagnostics.Debug.WriteLine("Option: {0}", args.Option);
});
var opts = session.CategoryOptions;
session.SetPreferredIOBufferDuration(0.01, out error);
session.SetActive(true);
_audioFormat = AudioStreamBasicDescription.CreateLinearPCM(_sampleRate, bitsPerChannel: 32);
_audioFormat.FormatFlags |= AudioFormatFlags.IsNonInterleaved | AudioFormatFlags.IsFloat;
_audioComponent = AudioComponent.FindComponent(AudioTypeOutput.Remote);
// creating an audio unit instance
_audioUnit = new AudioUnit.AudioUnit(_audioComponent);
// setting audio format
_audioUnit.SetAudioFormat(_audioFormat,
AudioUnitScopeType.Input,
0 // Remote Output
);
//_audioFormat.FormatFlags = AudioStreamBasicDescription.AudioFormatFlagsNativeFloat;
_audioUnit.SetAudioFormat(_audioFormat, AudioUnitScopeType.Output, 1);
// setting callback method
_audioUnit.SetRenderCallback(_audioUnit_RenderCallback, AudioUnitScopeType.Global);
_audioUnit.Initialize();
_audioUnit.Stop();
}
