static int GetBufferSize(XtStream stream, int frames)
{
XtFormat format = stream.GetFormat();
int sampleSize = XtAudio.GetSampleAttributes(format.mix.sample).size;
return(frames * format.inputs * sampleSize);
}
internal void OnCallback(XtStream stream, object input, object output, int frames,
double time, ulong position, bool timeValid, ulong error, object user)
{
if (error != 0)
{
onError(() => "Stream callback error: " + XtPrint.ErrorToString(error));
return;
}
XtFormat format = stream.GetFormat();
bool interleaved = stream.IsInterleaved();
OnCallback(format, interleaved, stream.IsRaw(), input, output, frames);
processed += frames;
if (processed < format.mix.rate * 3)
{
return;
}
processed = 0;
XtLatency latency = stream.GetLatency();
string formatString = "Stream {1}:{0}\tinput latency:{2}{0}\toutput latency:{3}{0}\t" +
"buffer frames:{4}{0}\tcurrent frames:{5}{0}\ttime:{6}{0}\tposition:{7}{0}\ttimeValid:{8}{0}\tuser:{9}.";
OnMessage(() => string.Format(formatString, Environment.NewLine, name, latency.input,
latency.output, stream.GetFrames(), frames, time, position, timeValid, user));
}
static void OnAggregate(XtStream stream, object input, object output, int frames, double time,
ulong position, bool timeValid, ulong error, object user)
{
XtFormat format = stream.GetFormat();
XtAttributes attrs = XtAudio.GetSampleAttributes(format.mix.sample);
if (frames > 0)
{
Buffer.BlockCopy((Array)input, 0, (Array)output, 0, frames * format.inputs * attrs.size);
}
}
internal XtSafeBuffer(XtStream stream, bool interleaved)
{
_stream = stream;
_interleaved = interleaved;
_format = stream.GetFormat();
_inputs = _format.channels.inputs;
_outputs = _format.channels.outputs;
_attrs = XtAudio.GetSampleAttributes(_format.mix.sample);
_input = CreateBuffer(_inputs);
_output = CreateBuffer(_outputs);
}
static unsafe void RenderNonInterleavedRaw(XtStream stream, object input, object output,
int frames, double time, ulong position, bool timeValid, ulong error, object user)
{
XtFormat format = stream.GetFormat();
for (int f = 0; f < frames; f++)
{
float sine = NextSine(format.mix.rate);
for (int c = 0; c < format.outputs; c++)
{
((float **)(IntPtr)output)[c][f] = sine;
}
}
}
static void RenderInterleaved(XtStream stream, object input, object output,
int frames, double time, ulong position, bool timeValid, ulong error, object user)
{
XtFormat format = stream.GetFormat();
for (int f = 0; f < frames; f++)
{
float sine = NextSine(format.mix.rate);
for (int c = 0; c < format.outputs; c++)
{
((float[])output)[f * format.outputs + c] = sine;
}
}
}
static void CaptureNonInterleaved(XtStream stream, object input, object output,
int frames, double time, ulong position, bool timeValid, ulong error, object user)
{
if (frames > 0)
{
Context ctx = (Context)user;
XtFormat format = stream.GetFormat();
int channels = format.inputs;
int sampleSize = XtAudio.GetSampleAttributes(format.mix.sample).size;
for (int f = 0; f < frames; f++)
{
for (int c = 0; c < channels; c++)
{
// Don't do this.
ctx.recording.Write(((byte[][])input)[c], f * sampleSize, sampleSize);
}
}
}
}
static unsafe void CaptureNonInterleavedRaw(XtStream stream, object input, object output,
int frames, double time, ulong position, bool timeValid, ulong error, object user)
{
if (frames > 0)
{
Context ctx = (Context)user;
XtFormat format = stream.GetFormat();
int channels = format.inputs;
int sampleSize = XtAudio.GetSampleAttributes(format.mix.sample).size;
for (int f = 0; f < frames; f++)
{
for (int c = 0; c < channels; c++)
{
IntPtr source = new IntPtr(&(((byte **)(IntPtr)input)[c][f * sampleSize]));
Marshal.Copy(source, ctx.intermediate, 0, sampleSize);
// Don't do this.
ctx.recording.Write(ctx.intermediate, 0, sampleSize);
}
}
}
}
private void OnStart(object sender, EventArgs ea)
{
try {
StreamType type = (StreamType)streamType.SelectedItem;
bool input = type == StreamType.Capture || type == StreamType.Duplex || type == StreamType.Latency;
bool output = type == StreamType.Render || type == StreamType.Duplex || type == StreamType.Latency;
XtDevice inputDevice = ((DeviceView)this.inputDevice.SelectedItem).device;
XtDevice outputDevice = ((DeviceView)this.outputDevice.SelectedItem).device;
XtDevice secondaryInputDevice = ((DeviceView)this.secondaryInput.SelectedItem).device;
XtDevice secondaryOutputDevice = ((DeviceView)this.secondaryOutput.SelectedItem).device;
if (input && inputDevice == null)
{
MessageBox.Show(this,
"Select an input device.",
"Invalid input device.");
return;
}
if (output && outputDevice == null)
{
MessageBox.Show(this,
"Select an output device.",
"Invalid output device.");
return;
}
if (type == StreamType.Duplex && outputDevice != inputDevice)
{
MessageBox.Show(this,
"For duplex operation, input and output device must be the same.",
"Invalid duplex device.");
return;
}
if (type == StreamType.Aggregate &&
(inputDevice == null && secondaryInputDevice == null ||
outputDevice == null && secondaryOutputDevice == null))
{
MessageBox.Show(this,
"For aggregate operation, select at least 1 input and 1 output device.",
"Invalid aggregate device.");
return;
}
XRunCallback xRunCallback = new XRunCallback(AddMessage);
XtFormat inputFormat = GetFormat(false);
inputFormat.inputs = (int)channelCount.SelectedItem;
if (input && inputChannels.SelectedItems.Count > 0 && inputChannels.SelectedItems.Count != inputFormat.inputs)
{
MessageBox.Show(this,
"Selected either 0 input channels or a number equal to the selected format's channels.",
"Invalid input channel mask.");
return;
}
for (int c = 0; c < inputChannels.SelectedItems.Count; c++)
{
inputFormat.inMask |= (1UL << ((ChannelView)inputChannels.SelectedItems[c]).index);
}
XtFormat outputFormat = GetFormat(true);
if (output && outputChannels.SelectedItems.Count > 0 && outputChannels.SelectedItems.Count != outputFormat.outputs)
{
MessageBox.Show(this,
"Selected either 0 output channels or a number equal to the selected format's channels.",
"Invalid output channel mask.");
return;
}
for (int c = 0; c < outputChannels.SelectedItems.Count; c++)
{
outputFormat.outMask |= (1UL << ((ChannelView)outputChannels.SelectedItems[c]).index);
}
if (type == StreamType.Capture)
{
captureFile = new FileStream("xt-audio.raw", FileMode.Create, FileAccess.Write);
CaptureCallback callback = new CaptureCallback(OnStreamError, AddMessage, captureFile);
inputStream = inputDevice.OpenStream(inputFormat, streamInterleaved.Checked, streamRaw.Checked,
bufferSize.Value, callback.OnCallback, xRunCallback.OnCallback, "capture-user-data");
callback.Init(inputStream.GetFormat(), inputStream.GetFrames());
inputStream.Start();
}
else if (type == StreamType.Render)
{
RenderCallback callback = new RenderCallback(OnStreamError, AddMessage);
outputStream = outputDevice.OpenStream(outputFormat, streamInterleaved.Checked, streamRaw.Checked,
bufferSize.Value, callback.OnCallback, xRunCallback.OnCallback, "render-user-data");
outputStream.Start();
}
else if (type == StreamType.Duplex)
{
XtFormat duplexFormat = inputFormat;
duplexFormat.outputs = outputFormat.outputs;
duplexFormat.outMask = outputFormat.outMask;
FullDuplexCallback callback = new FullDuplexCallback(OnStreamError, AddMessage);
outputStream = outputDevice.OpenStream(duplexFormat, streamInterleaved.Checked, streamRaw.Checked,
bufferSize.Value, callback.OnCallback, xRunCallback.OnCallback, "duplex-user-data");
outputStream.Start();
}
else if (type == StreamType.Aggregate)
{
List <XtDevice> devices = new List <XtDevice>();
List <double> bufferSizes = new List <double>();
List <XtChannels> channels = new List <XtChannels>();
if (inputDevice != null)
{
devices.Add(inputDevice);
bufferSizes.Add(bufferSize.Value);
channels.Add(new XtChannels(inputFormat.inputs, inputFormat.inMask, 0, 0));
}
if (outputDevice != null)
{
devices.Add(outputDevice);
bufferSizes.Add(bufferSize.Value);
channels.Add(new XtChannels(0, 0, outputFormat.outputs, outputFormat.outMask));
}
if (secondaryInputDevice != null)
{
devices.Add(secondaryInputDevice);
bufferSizes.Add(bufferSize.Value);
channels.Add(new XtChannels(inputFormat.inputs, inputFormat.inMask, 0, 0));
}
if (secondaryOutputDevice != null)
{
devices.Add(secondaryOutputDevice);
bufferSizes.Add(bufferSize.Value);
channels.Add(new XtChannels(0, 0, outputFormat.outputs, outputFormat.outMask));
}
XtDevice[] devicesArray = devices.ToArray();
double[] bufferSizesArray = bufferSizes.ToArray();
XtChannels[] channelsArray = channels.ToArray();
XtDevice master = outputMaster.Checked ?
(outputDevice != null ? outputDevice :
secondaryOutputDevice != null ? secondaryOutputDevice :
inputDevice != null ? inputDevice : secondaryInputDevice) :
(inputDevice != null ? inputDevice :
secondaryInputDevice != null ? secondaryInputDevice :
outputDevice != null ? outputDevice : secondaryOutputDevice);
AggregateCallback streamCallback = new AggregateCallback(OnStreamError, AddMessage);
outputStream = ((XtService)service.SelectedItem).AggregateStream(devicesArray, channelsArray,
bufferSizesArray, devicesArray.Length, outputFormat.mix, streamInterleaved.Checked, streamRaw.Checked,
master, streamCallback.OnCallback, xRunCallback.OnCallback, "aggregate-user-data");
streamCallback.Init(outputStream.GetFrames());
outputStream.Start();
}
else if (inputDevice == outputDevice)
{
XtFormat duplexFormat = inputFormat;
duplexFormat.outputs = outputFormat.outputs;
duplexFormat.outMask = outputFormat.outMask;
LatencyCallback callback = new LatencyCallback(OnStreamError, AddMessage);
outputStream = outputDevice.OpenStream(duplexFormat, streamInterleaved.Checked, streamRaw.Checked,
bufferSize.Value, callback.OnCallback, xRunCallback.OnCallback, "latency-user-data");
outputStream.Start();
}
else
{
XtDevice[] devices = new XtDevice[] { inputDevice, outputDevice };
double[] bufferSizes = new double[] { bufferSize.Value, bufferSize.Value };
XtChannels[] channels = new XtChannels[] {
new XtChannels(inputFormat.inputs, inputFormat.inMask, 0, 0),
new XtChannels(0, 0, outputFormat.outputs, outputFormat.outMask)
};
XtDevice master = outputMaster.Checked ? outputDevice : inputDevice;
LatencyCallback callback = new LatencyCallback(OnStreamError, AddMessage);
outputStream = ((XtService)service.SelectedItem).AggregateStream(devices, channels,
bufferSizes, devices.Length, outputFormat.mix, streamInterleaved.Checked, streamRaw.Checked,
master, callback.OnCallback, xRunCallback.OnCallback, "latency-user-data");
outputStream.Start();
}
stop.Enabled = true;
panel.Enabled = false;
start.Enabled = false;
streamRaw.Enabled = false;
bufferSize.Enabled = false;
streamType.Enabled = false;
outputMaster.Enabled = false;
secondaryInput.Enabled = false;
secondaryOutput.Enabled = false;
streamInterleaved.Enabled = false;
} catch (XtException e) {
Stop();
MessageBox.Show(this, e.ToString(), "Failed to start stream.", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
object Start()
{
StreamType type = (StreamType)_streamType.SelectedItem;
bool input = type == StreamType.Capture || type == StreamType.Duplex;
bool output = type == StreamType.Render || type == StreamType.Duplex;
var inputInfo = _input._device.SelectedItem as DeviceInfo;
var outputInfo = _output._device.SelectedItem as DeviceInfo;
XtDevice inputDevice = inputInfo?.Device;
XtDevice outputDevice = outputInfo?.Device;
XtDevice secondaryInputDevice = (_secondaryInput.SelectedItem as DeviceInfo).Device;
XtDevice secondaryOutputDevice = (_secondaryOutput.SelectedItem as DeviceInfo).Device;
bool anyInput = inputDevice != null || secondaryInputDevice != null;
bool anyOutput = outputDevice != null || secondaryOutputDevice != null;
string duplexMessage = "For duplex operation, input and output device must be the same.";
string aggregateMessage = "For aggregate operation, select at least 1 input and 1 output device.";
if (input && inputDevice == null)
{
return(MessageBox.Show(this, "Select an input device.", "Invalid input device."));
}
if (output && outputDevice == null)
{
return(MessageBox.Show(this, "Select an output device.", "Invalid output device."));
}
if (type == StreamType.Duplex && inputInfo.Id != outputInfo.Id)
{
return(MessageBox.Show(this, duplexMessage, "Invalid duplex device."));
}
if (type == StreamType.Aggregate && (!anyInput || !anyOutput))
{
return(MessageBox.Show(this, aggregateMessage, "Invalid aggregate device."));
}
var state = _logXRuns.CheckState;
XtSystem system = (XtSystem)_system.SelectedItem;
OnXRun onXRunWrapper = new OnXRun(AddMessage);
bool doLogXRuns = state == CheckState.Checked || (state == CheckState.Indeterminate && system != XtSystem.JACK);
XtOnXRun onXRun = doLogXRuns ? onXRunWrapper.Callback : (XtOnXRun)null;
XtFormat inputFormat = GetFormat(false).Value;
var inputSelection = _input._channels.SelectedItems;
inputFormat.channels.inputs = (int)_channelCount.SelectedItem;
string inputChannelMessage = "Selected either 0 input channels or a number equal to the selected format's channels.";
if (input && inputSelection.Count > 0 && inputSelection.Count != inputFormat.channels.inputs)
{
return(MessageBox.Show(this, inputChannelMessage, "Invalid input channel mask."));
}
for (int c = 0; c < inputSelection.Count; c++)
{
inputFormat.channels.inMask |= (1UL << ((ChannelInfo)inputSelection[c]).Index);
}
XtFormat outputFormat = GetFormat(true).Value;
var outputSelection = _output._channels.SelectedItems;
outputFormat.channels.outputs = (int)_channelCount.SelectedItem;
string outputChannelMessage = "Selected either 0 output channels or a number equal to the selected format's channels.";
if (output && outputSelection.Count > 0 && outputSelection.Count != outputFormat.channels.outputs)
{
return(MessageBox.Show(this, outputChannelMessage, "Invalid output channel mask."));
}
for (int c = 0; c < outputSelection.Count; c++)
{
outputFormat.channels.outMask |= (1UL << ((ChannelInfo)outputSelection[c]).Index);
}
int buffer = _bufferSize.Value;
bool native = _streamNative.Checked;
bool interleaved = _streamInterleaved.Checked;
var @params = new OnBufferParams(interleaved, native, AddMessage);
if (type == StreamType.Capture)
{
@params.Name = "Capture";
_captureFile = new FileStream("xt-audio.raw", FileMode.Create, FileAccess.Write);
OnCapture callback = new OnCapture(@params, _captureFile);
var streamParams = new XtStreamParams(interleaved, callback.Callback, onXRun, OnRunning);
var deviceParams = new XtDeviceStreamParams(in streamParams, in inputFormat, buffer);
_stream = inputDevice.OpenStream(in deviceParams, "capture-user-data");
callback.Init(_stream.GetFormat(), _stream.GetFrames());
_safeBuffer = XtSafeBuffer.Register(_stream, interleaved);
_stream.Start();
}
else if (type == StreamType.Render)
{
@params.Name = "Render";
OnRender callback = new OnRender(@params);
var streamParams = new XtStreamParams(interleaved, callback.Callback, onXRun, OnRunning);
var deviceParams = new XtDeviceStreamParams(in streamParams, in outputFormat, buffer);
_stream = outputDevice.OpenStream(in deviceParams, "render-user-data");
_safeBuffer = XtSafeBuffer.Register(_stream, interleaved);
_stream.Start();
}
else if (type == StreamType.Duplex)
{
@params.Name = "Duplex";
XtFormat duplexFormat = inputFormat;
duplexFormat.channels.outputs = outputFormat.channels.outputs;
duplexFormat.channels.outMask = outputFormat.channels.outMask;
OnFullDuplex callback = new OnFullDuplex(@params);
var streamParams = new XtStreamParams(interleaved, callback.Callback, onXRun, OnRunning);
var deviceParams = new XtDeviceStreamParams(in streamParams, in duplexFormat, buffer);
_stream = outputDevice.OpenStream(in deviceParams, "duplex-user-data");
_safeBuffer = XtSafeBuffer.Register(_stream, interleaved);
_stream.Start();
}
else if (type == StreamType.Aggregate)
{
@params.Name = "Aggregate";
var devices = new List <XtAggregateDeviceParams>();
XtDevice master = _outputMaster.Checked ? (outputDevice ?? secondaryOutputDevice) : (inputDevice ?? secondaryInputDevice);
if (inputDevice != null)
{
devices.Add(new XtAggregateDeviceParams(inputDevice, inputFormat.channels, buffer));
}
if (outputDevice != null)
{
devices.Add(new XtAggregateDeviceParams(outputDevice, outputFormat.channels, buffer));
}
if (secondaryInputDevice != null)
{
devices.Add(new XtAggregateDeviceParams(secondaryInputDevice, inputFormat.channels, buffer));
}
if (secondaryOutputDevice != null)
{
devices.Add(new XtAggregateDeviceParams(secondaryOutputDevice, outputFormat.channels, buffer));
}
OnAggregate streamCallback = new OnAggregate(@params);
var streamParams = new XtStreamParams(interleaved, streamCallback.Callback, onXRun, OnRunning);
var aggregateParams = new XtAggregateStreamParams(in streamParams, devices.ToArray(), devices.Count, outputFormat.mix, master);
_stream = _platform.GetService(system).AggregateStream(in aggregateParams, "aggregate-user-data");
streamCallback.Init(_stream.GetFrames());
_safeBuffer = XtSafeBuffer.Register(_stream, interleaved);
_stream.Start();
}
return(null);
}