public MainForm()
{
InitializeComponent();
buffer = new Byte[512];
audio = new RtAudio();
//audio1 = new RtAudio();
mixer = new RtStreamMixer();
// Setup Test Logging
EventLoggerManager.TraceLoggingEvent += new LoggingEventHandler(EventLoggerManager_TraceLoggingEvent);
EventLoggerManager.DebugLoggingEvent += new LoggingEventHandler(EventLoggerManager_DebugLoggingEvent);
EventLoggerManager.InfoLoggingEvent += new LoggingEventHandler(EventLoggerManager_InfoLoggingEvent);
EventLoggerManager.WarnLoggingEvent += new LoggingEventHandler(EventLoggerManager_WarnLoggingEvent);
EventLoggerManager.ErrorLoggingEvent += new LoggingEventHandler(EventLoggerManager_ErrorLoggingEvent);
EventLoggerManager.CriticalLoggingEvent += new LoggingEventHandler(EventLoggerManager_CriticalLoggingEvent);
List <RtAudio.Api> compileApis = RtAudio.getCompiledApi();
// List the currently compiled APIs.
logger.Debug("Compiled Apis:");
foreach (RtAudio.Api api in compileApis)
{
//Console.WriteLine(" {0}", api.ToString());
logger.Debug(String.Format(" {0}", api.ToString()));
} // end foreach
// Enumerate Devices
uint deviceCount = audio.getDeviceCount();
//Console.WriteLine("Device Count: {0}", deviceCount);
logger.Debug(String.Format("Device Count: {0}", deviceCount));
//Console.WriteLine("Found Devices:");
logger.Debug("Found Devices:");
for (uint idx = 0; deviceCount > idx; idx++)
{
RtAudio.DeviceInfo info = audio.getDeviceInfo(idx);
//Console.WriteLine("ID {1}: {0}:", info.name, idx);
//Console.WriteLine(" InputChannels: {0}", info.inputChannels);
//Console.WriteLine(" OutputChannels: {0}", info.outputChannels);
//Console.WriteLine(" DuplexChannels: {0}", info.duplexChannels);
logger.Debug(String.Format("ID {1}: {0}:", info.name, idx));
logger.Debug(String.Format(" InputChannels: {0}", info.inputChannels));
logger.Debug(String.Format(" OutputChannels: {0}", info.outputChannels));
logger.Debug(String.Format(" DuplexChannels: {0}", info.duplexChannels));
if (info.inputChannels > 0)
{
inputCombo.Items.Add(info.name);
inputCombo.SelectedIndex = 0;
} // end if
if (info.outputChannels > 0)
{
outputCombo.Items.Add(info.name);
outputCombo.SelectedIndex = 0;
} // end if
} // end for
}
private void startLoopback_Click(object sender, EventArgs e)
{
if (streamRunning == false)
{
int inputID = 0, outputID = 0;
string selectedInput = inputCombo.SelectedItem as String;
string selectedOutput = outputCombo.SelectedItem as String;
for (int idx = 0; audio.getDeviceCount() > idx; idx++)
{
RtAudio.DeviceInfo info = audio.getDeviceInfo((uint)idx);
if (info.name.Contains(selectedInput))
{
inputID = idx;
} // end if
if (info.name.Contains(selectedOutput))
{
outputID = idx;
} // end if
} // end for
RtAudio.StreamParameters inputParams = new RtAudio.StreamParameters();
inputParams.deviceId = (uint)inputID;
inputParams.nChannels = 2;
RtAudio.StreamParameters outputParams = new RtAudio.StreamParameters();
outputParams.deviceId = (uint)outputID;
outputParams.nChannels = 2;
RtAudio.StreamOptions options = new RtAudio.StreamOptions();
options.priority = (int)RtAudioStreamFlags.RTAUDIO_SCHEDULE_REALTIME;
options.flags = (int)RtAudioStreamFlags.RTAUDIO_MINIMIZE_LATENCY;
//uint frames = 512;
//audio.openStream(null, inputParams, RtAudioFormat.RTAUDIO_SINT8, 44100, 256, loopbackCallback, null, options);
//audio1.openStream(outputParams, null, RtAudioFormat.RTAUDIO_SINT8, 44100, 256, loopbackCallback1, null, options);
/*duplexStream = new RtDuplexStream(RtAudioFormat.RTAUDIO_SINT32, 2, 44100, 32, 256);
* duplexStream.selectInputDevice((int)inputID);
* duplexStream.selectOutputDevice((int)outputID);
* duplexStream.Open();
* duplexStream.Start();*/
inputStream = new RtInputStream(RtAudioFormat.RTAUDIO_FLOAT32, 2, 44100, 32, 512);
inputStream.Format.options = options;
inputStream.selectInputDevice(inputID);
inputStream.Name = "FooBar";
inputStream2 = new RtInputStream(RtAudioFormat.RTAUDIO_FLOAT32, 2, 44100, 32, 512);
inputStream2.Format.options = options;
inputStream2.selectInputDevice(0);
inputStream2.Name = "FooBar 2";
//inputStream.callbackFired +=new EventHandler(inputStream_callbackFired);
outputStream = new RtOutputStream(RtAudioFormat.RTAUDIO_FLOAT32, 2, 44100, 32, 512);
outputStream.Format.options = options;
outputStream.selectOutputDevice(outputID);
mixer.AddInputStream(inputStream, 1.0f, -1.0f);
mixer.AddInputStream(inputStream2, 1.0f, 1.0f);
mixer.SetOutputStream(outputStream);
mixer.Start();
//outputStream.callbackFired += new EventHandler(inputStream_callbackFired);
//inputStream.Open();
//outputStream.Open();
//inputStream.Start();
//outputStream.Start();
// Change button text
startLoopback.Text = "Stop Loopback";
streamRunning = true;
// Start the stream
//audio.startStream();
//audio1.startStream();
}
else
{
mixer.Stop();
//audio.stopStream();
//audio.closeStream();
streamRunning = false;
//duplexStream.Stop();
//duplexStream.Abort();
startLoopback.Text = "Start Loopback";
} // end if
}
