public Audio(int inputChannels, int outputChannels, int frequency, uint framesPerBuffer,
PortAudio.PaStreamCallbackDelegate paStreamCallback)
{
log("Initializing...");
this.inputChannels = inputChannels;
this.outputChannels = outputChannels;
this.frequency = frequency;
this.framesPerBuffer = framesPerBuffer;
this.paStreamCallback = paStreamCallback;
if (errorCheck("Initialize",PortAudio.Pa_Initialize())) {
this.disposed = true;
// if Pa_Initialize() returns an error code,
// Pa_Terminate() should NOT be called.
throw new Exception("Can't initialize audio");
}
int apiCount = PortAudio.Pa_GetHostApiCount();
for (int i = 0; i < apiCount; i++) {
PortAudio.PaHostApiInfo availableApiInfo = PortAudio.Pa_GetHostApiInfo(i);
log("available API index: " + i + "\n" + availableApiInfo.ToString());
}
this.hostApi = apiSelect();
log("selected Host API: " + this.hostApi);
this.apiInfo = PortAudio.Pa_GetHostApiInfo(this.hostApi);
this.inputDeviceInfo = PortAudio.Pa_GetDeviceInfo(apiInfo.defaultInputDevice);
this.outputDeviceInfo = PortAudio.Pa_GetDeviceInfo(apiInfo.defaultOutputDevice);
log("input device:\n" + inputDeviceInfo.ToString());
log("output device:\n" + outputDeviceInfo.ToString());
}
private IntPtr streamOpen(int inputDevice, int inputChannels,
int outputDevice, int outputChannels,
int sampleRate, uint framesPerBuffer)
{
IntPtr stream = new IntPtr();
IntPtr data = new IntPtr(0);
PortAudio.PaStreamParameters inputParams = new PortAudio.PaStreamParameters();
inputParams.channelCount = inputChannels;
inputParams.device = inputDevice;
inputParams.sampleFormat = PortAudio.PaSampleFormat.paFloat32;
inputParams.suggestedLatency = this.inputDeviceInfo.defaultLowInputLatency;
PortAudio.PaStreamParameters outputParams = new PortAudio.PaStreamParameters();
outputParams.channelCount = outputChannels;
outputParams.device = outputDevice;
outputParams.sampleFormat = PortAudio.PaSampleFormat.paFloat32;
outputParams.suggestedLatency = this.outputDeviceInfo.defaultLowOutputLatency;
errorCheck("OpenDefaultStream", PortAudio.Pa_OpenStream(
out stream,
ref inputParams,
ref outputParams,
sampleRate,
framesPerBuffer,
PortAudio.PaStreamFlags.paNoFlag,
this.paStreamCallback,
data));
return(stream);
}
private PortAudio.PaStreamCallbackResult myPaStreamCallback(
IntPtr input,
IntPtr output,
uint frameCount,
ref PortAudio.PaStreamCallbackTimeInfo timeInfo,
PortAudio.PaStreamCallbackFlags statusFlags,
IntPtr userData)
{
float[] mBuffer = new float[frameCount];
for (int i = 0; i < frameCount; i++)
{
for (int j = 0; j < MAX_CHANELS; j++)
{
float f = 0;
if (_channels[j].TryDequeue(out f))
{
mBuffer[i] = mBuffer[i] + f;
}
}
}
Marshal.Copy(mBuffer, 0, output, (int)frameCount);
return PortAudio.PaStreamCallbackResult.paContinue;
}
void ASIODeviceControlLoad(object sender, EventArgs e)
{
int deviceCount = PortAudio.Pa_GetDeviceCount();
Console.WriteLine("Device count: " + paHostApiInfo.deviceCount + " default input device: " + paHostApiInfo.defaultInputDevice);
deviceComboBox.Items.Clear();
for (int i = 0; i < deviceCount; i++)
{
PortAudio.PaDeviceInfo paDeviceInfo = PortAudio.Pa_GetDeviceInfo(i);
PortAudio.PaHostApiInfo paHostApi = PortAudio.Pa_GetHostApiInfo(paDeviceInfo.hostApi);
if (paHostApi.type == PortAudio.PaHostApiTypeId.paASIO)
{
Console.WriteLine("\n#" + i + "\n" + paDeviceInfo);
if (paDeviceInfo.maxOutputChannels > 0)
{
deviceComboBox.Items.Add(new DeviceItem(i, paDeviceInfo));
if (i == paHostApiInfo.defaultOutputDevice)
{
deviceComboBox.SelectedIndex = deviceComboBox.Items.Count - 1;
}
}
}
}
bufferSizeComboBox.Items.Clear();
int bufferSize = 256;
while (bufferSize < 44100 / 2)
{
bufferSizeComboBox.Items.Add(bufferSize);
bufferSize *= 2;
}
bufferSizeComboBox.SelectedIndex = 2;
}
internal unsafe PortAudio.PaStreamCallbackResult CallBack(IntPtr inputBuffer, IntPtr outputBuffer,
uint framesPerBuffer, ref PortAudio.PaStreamCallbackTimeInfo timeInfo,
PortAudio.PaStreamCallbackFlags statusFlags, IntPtr userData)
{
CallBack(framesPerBuffer, (float*)outputBuffer.ToPointer());
return PortAudio.PaStreamCallbackResult.paContinue;
}
public PortAudio.PaStreamCallbackResult myPaStreamCallback(
IntPtr input,
IntPtr output,
uint frameCount,
ref PortAudio.PaStreamCallbackTimeInfo timeInfo,
PortAudio.PaStreamCallbackFlags statusFlags,
IntPtr userData)
{
try {
// log("Callback called");
// log("time: " + timeInfo.currentTime
// + " " + timeInfo.inputBufferAdcTime
// + " " + timeInfo.outputBufferDacTime);
// log("statusFlags: "+statusFlags);
if (callbackBuffer.Length < frameCount*2)
callbackBuffer = new float[frameCount*2];
for (int j = 0; j < frameCount*2; j++)
callbackBuffer[j] = (float) Math.Sin((double)(callbackPos++)/20.0);
Marshal.Copy(callbackBuffer, 0, output, (int)frameCount*2);
} catch (Exception e) {
Console.WriteLine(e.ToString());
}
return PortAudio.PaStreamCallbackResult.paContinue;
}
public HostApiItem(PortAudio.PaHostApiInfo hostApiInfo, IUpdatableControl updatableControl)
{
this.hostApiInfo = hostApiInfo;
int deviceCount = PortAudio.Pa_GetDeviceCount();
int selectedHostApiDeviceCount = 0;
for (int i = 0; i < deviceCount; i++) {
PortAudio.PaDeviceInfo paDeviceInfo = PortAudio.Pa_GetDeviceInfo(i);
PortAudio.PaHostApiInfo paHostApi = PortAudio.Pa_GetHostApiInfo(paDeviceInfo.hostApi);
if (paHostApi.type == hostApiInfo.type) { selectedHostApiDeviceCount++; }
}
if (selectedHostApiDeviceCount > 0) {
switch(hostApiInfo.type) {
case PortAudio.PaHostApiTypeId.paMME:
hostApiDeviceControl = new MMEDeviceControl(hostApiInfo, updatableControl);
break;
case PortAudio.PaHostApiTypeId.paDirectSound:
hostApiDeviceControl = new DirectSoundDeviceControl(hostApiInfo, updatableControl);
break;
case PortAudio.PaHostApiTypeId.paASIO:
hostApiDeviceControl = new ASIODeviceControl(hostApiInfo, updatableControl);
break;
case PortAudio.PaHostApiTypeId.paALSA:
hostApiDeviceControl = new ALSADeviceControl(hostApiInfo, updatableControl);
break;
}
} else {
hostApiDeviceControl = new NoDevicesDeviceControl(hostApiInfo, updatableControl);
}
}
public Audio(int inputChannels, int outputChannels, int frequency, uint framesPerBuffer,
PortAudio.PaStreamCallbackDelegate paStreamCallback)
{
log("Initializing...");
this.inputChannels = inputChannels;
this.outputChannels = outputChannels;
this.frequency = frequency;
this.framesPerBuffer = framesPerBuffer;
this.paStreamCallback = paStreamCallback;
if (errorCheck("Initialize", PortAudio.Pa_Initialize()))
{
this.disposed = true;
// if Pa_Initialize() returns an error code,
// Pa_Terminate() should NOT be called.
throw new Exception("Can't initialize audio");
}
int apiCount = PortAudio.Pa_GetHostApiCount();
for (int i = 0; i < apiCount; i++)
{
PortAudio.PaHostApiInfo availableApiInfo = PortAudio.Pa_GetHostApiInfo(i);
log("available API index: " + i + "\n" + availableApiInfo.ToString());
}
this.hostApi = apiSelect();
log("selected Host API: " + this.hostApi);
this.apiInfo = PortAudio.Pa_GetHostApiInfo(this.hostApi);
this.inputDeviceInfo = PortAudio.Pa_GetDeviceInfo(apiInfo.defaultInputDevice);
this.outputDeviceInfo = PortAudio.Pa_GetDeviceInfo(apiInfo.defaultOutputDevice);
log("input device:\n" + inputDeviceInfo.ToString());
log("output device:\n" + outputDeviceInfo.ToString());
}
public MMEDeviceControl(PortAudio.PaHostApiInfo paHostApiInfo, IUpdatableControl updatableControl)
{
//
// The InitializeComponent() call is required for Windows Forms designer support.
//
InitializeComponent();
//
// TODO: Add constructor code after the InitializeComponent() call.
//
this.paHostApiInfo = paHostApiInfo;
this.updatableControl = updatableControl;
}
/*
* private void streamWrite(IntPtr stream, float[] buffer) {
* errorCheck("WriteStream",PortAudio.Pa_WriteStream(
* stream,buffer,(uint)(buffer.Length/2)));
* }
*/
private void Dispose(bool disposing)
{
if (!this.disposed)
{
if (disposing)
{
// Dispose here any managed resources
}
// Dispose here any unmanaged resources
log("Terminating...");
errorCheck("Terminate", PortAudio.Pa_Terminate());
}
this.disposed = true;
}
private int apiSelect()
{
int selectedHostApi = PortAudio.Pa_GetDefaultHostApi();
int apiCount = PortAudio.Pa_GetHostApiCount();
for (int i = 0; i < apiCount; i++)
{
PortAudio.PaHostApiInfo apiInfo = PortAudio.Pa_GetHostApiInfo(i);
if ((apiInfo.type == PortAudio.PaHostApiTypeId.paDirectSound) ||
(apiInfo.type == PortAudio.PaHostApiTypeId.paALSA))
{
selectedHostApi = i;
}
}
return(selectedHostApi);
}
public HostApiItem(PortAudio.PaHostApiInfo hostApiInfo, IUpdatableControl updatableControl)
{
this.hostApiInfo = hostApiInfo;
int deviceCount = PortAudio.Pa_GetDeviceCount();
int selectedHostApiDeviceCount = 0;
for (int i = 0; i < deviceCount; i++)
{
PortAudio.PaDeviceInfo paDeviceInfo = PortAudio.Pa_GetDeviceInfo(i);
PortAudio.PaHostApiInfo paHostApi = PortAudio.Pa_GetHostApiInfo(paDeviceInfo.hostApi);
if (paHostApi.type == hostApiInfo.type)
{
selectedHostApiDeviceCount++;
}
}
if (selectedHostApiDeviceCount > 0)
{
switch (hostApiInfo.type)
{
case PortAudio.PaHostApiTypeId.paMME:
hostApiDeviceControl = new MMEDeviceControl(hostApiInfo, updatableControl);
break;
case PortAudio.PaHostApiTypeId.paDirectSound:
hostApiDeviceControl = new DirectSoundDeviceControl(hostApiInfo, updatableControl);
break;
case PortAudio.PaHostApiTypeId.paASIO:
hostApiDeviceControl = new ASIODeviceControl(hostApiInfo, updatableControl);
break;
case PortAudio.PaHostApiTypeId.paALSA:
hostApiDeviceControl = new ALSADeviceControl(hostApiInfo, updatableControl);
break;
}
}
else
{
hostApiDeviceControl = new NoDevicesDeviceControl(hostApiInfo, updatableControl);
}
}
public PortAudio.PaStreamCallbackResult recordCallback(
IntPtr input,
IntPtr output,
uint frameCount,
ref PortAudio.PaStreamCallbackTimeInfo timeInfo,
PortAudio.PaStreamCallbackFlags statusFlags,
IntPtr userData)
{
try
{
float[] callbackBuffer = new float[frameCount];
Marshal.Copy(input, callbackBuffer, 0, (int)frameCount);
samplesDelegate(callbackBuffer);
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
return PortAudio.PaStreamCallbackResult.paContinue;
}
private bool errorCheck(String action, PortAudio.PaError errorCode)
{
if (errorCode != PortAudio.PaError.paNoError)
{
log(action + " error: " + PortAudio.Pa_GetErrorText(errorCode));
if (errorCode == PortAudio.PaError.paUnanticipatedHostError)
{
PortAudio.PaHostErrorInfo errorInfo = PortAudio.Pa_GetLastHostErrorInfo();
log("- Host error API type: " + errorInfo.hostApiType);
log("- Host error code: " + errorInfo.errorCode);
log("- Host error text: " + errorInfo.errorText);
}
return(true);
}
else
{
log(action + " OK");
return(false);
}
}
void AudioSettingsControlLoad(object sender, EventArgs e)
{
driverTypeComboBox.Items.Clear();
int hostApiCount = PortAudio.Pa_GetHostApiCount();
for (int i = 0; i < hostApiCount; i++)
{
PortAudio.PaHostApiInfo hostApiInfo = PortAudio.Pa_GetHostApiInfo(i);
if (hostApiInfo.type != PortAudio.PaHostApiTypeId.paInDevelopment)
{
driverTypeComboBox.Items.Add(new HostApiItem(hostApiInfo, this));
}
}
driverTypeComboBox.SelectedIndex = PortAudio.Pa_GetDefaultHostApi();
sampleRateComboBox.Items.Clear();
sampleRateComboBox.Items.Add(192000);
sampleRateComboBox.Items.Add(176400);
sampleRateComboBox.Items.Add(96000);
sampleRateComboBox.Items.Add(88200);
sampleRateComboBox.Items.Add(48000);
sampleRateComboBox.Items.Add(44100);
sampleRateComboBox.Items.Add(38400);
sampleRateComboBox.Items.Add(37800);
sampleRateComboBox.Items.Add(32000);
sampleRateComboBox.Items.Add(24000);
sampleRateComboBox.Items.Add(22050);
sampleRateComboBox.Items.Add(19200);
sampleRateComboBox.Items.Add(18900);
sampleRateComboBox.Items.Add(16000);
sampleRateComboBox.Items.Add(12000);
sampleRateComboBox.Items.Add(11025);
sampleRateComboBox.Items.Add(9600);
sampleRateComboBox.Items.Add(8000);
sampleRateComboBox.SelectedIndex = 5;
update();
}
public PortAudio.PaStreamCallbackResult myPaStreamCallback(
IntPtr input,
IntPtr output,
uint frameCount,
ref PortAudio.PaStreamCallbackTimeInfo timeInfo,
PortAudio.PaStreamCallbackFlags statusFlags,
IntPtr userData)
{
try
{
frameCount *= 4;
if (frameCount > 0 && input != IntPtr.Zero)
{
byte[] _recbuffer = new byte[frameCount];
byte[] _leftBuffer = new byte[frameCount / 2];
byte[] _rightBuffer = new byte[frameCount / 2];
// copy from managed to unmanaged memory
Marshal.Copy(input, _recbuffer, 0, (int)frameCount);
// copy into left/right Buffer
for (int i = 0; i < frameCount / 2; i++)
{
_leftBuffer[i] = _recbuffer[i * 2 - (i % 2)];
_rightBuffer[i] = _recbuffer[i * 2 - (i % 2) + 2];
}
for (int i = 0; i < _recHandle.Length; i++)
{
if (new IntPtr(i) == userData)
{
if (_DeviceConfig[i].Inputs[0].PlayerChannel1 > 0)
_Buffer[_DeviceConfig[i].Inputs[0].PlayerChannel1 - 1].ProcessNewBuffer(_leftBuffer);
if (_DeviceConfig[i].Inputs[0].PlayerChannel2 > 0)
_Buffer[_DeviceConfig[i].Inputs[0].PlayerChannel2 - 1].ProcessNewBuffer(_rightBuffer);
break;
}
}
}
}
catch (Exception e)
{
CLog.LogError("Error on Stream Callback: " + e.ToString());
}
return PortAudio.PaStreamCallbackResult.paContinue;
}
public DeviceItem(int deviceIndex, PortAudio.PaDeviceInfo deviceInfo)
{
this.deviceIndex = deviceIndex;
this.deviceInfo = deviceInfo;
}
private void streamStop(IntPtr stream)
{
errorCheck("StopStream", PortAudio.Pa_StopStream(stream));
}
/*
* private IntPtr streamOpen(int inputChannels,int outputChannels,
* int sampleRate, uint framesPerBuffer) {
* IntPtr stream = new IntPtr();
* IntPtr data = new IntPtr(0);
* errorCheck("OpenDefaultStream",PortAudio.Pa_OpenDefaultStream(
* out stream,
* inputChannels,
* outputChannels,
* (uint) PortAudio.PaSampleFormat.paFloat32,
* sampleRate,
* framesPerBuffer,
* this.paStreamCallback,
* data));
* return stream;
* }
*/
private void streamClose(IntPtr stream)
{
errorCheck("CloseStream", PortAudio.Pa_CloseStream(stream));
}
private void OutputError(PortAudio.PaErrorCode err)
{
SendErrorMsg(PortAudio.Pa_GetErrorText(err));
}
void DeviceSettingsButtonClick(object sender, EventArgs e)
{
DeviceItem deviceItem = (DeviceItem)deviceComboBox.Items[deviceComboBox.SelectedIndex];
PortAudio.PaAsio_ShowControlPanel(deviceItem.DeviceIndex, new IntPtr(this.Handle.ToInt64()));
}
private bool errorCheck(String action, PortAudio.PaError errorCode)
{
if (errorCode != PortAudio.PaError.paNoError) {
log(action + " error: " + PortAudio.Pa_GetErrorText(errorCode));
if (errorCode == PortAudio.PaError.paUnanticipatedHostError) {
PortAudio.PaHostErrorInfo errorInfo = PortAudio.Pa_GetLastHostErrorInfo();
log("- Host error API type: " + errorInfo.hostApiType);
log("- Host error code: " + errorInfo.errorCode);
log("- Host error text: " + errorInfo.errorText);
}
return true;
} else {
log(action + " OK");
return false;
}
}
private bool errorCheck(String action, PortAudio.PaError errorCode)
{
if (errorCode != PortAudio.PaError.paNoError)
{
if (errorCode == PortAudio.PaError.paStreamIsNotStopped)
return false;
CLog.LogError(action + " error: " + PortAudio.Pa_GetErrorText(errorCode));
if (errorCode == PortAudio.PaError.paUnanticipatedHostError)
{
PortAudio.PaHostErrorInfo errorInfo = PortAudio.Pa_GetLastHostErrorInfo();
CLog.LogError("- Host error API type: " + errorInfo.hostApiType);
CLog.LogError("- Host error code: " + errorInfo.errorCode);
CLog.LogError("- Host error text: " + errorInfo.errorText);
}
return true;
}
return false;
}
private PortAudio.PaStreamCallbackResult _PaStreamCallback(
IntPtr input,
IntPtr output,
uint frameCount,
ref PortAudio.PaStreamCallbackTimeInfo timeInfo,
PortAudio.PaStreamCallbackFlags statusFlags,
IntPtr userData)
{
byte[] buf = new byte[frameCount * _ByteCount];
if (_Paused)
{
try
{
Marshal.Copy(buf, 0, output, (int)frameCount * _ByteCount);
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
return PortAudio.PaStreamCallbackResult.paContinue;
}
lock (_LockData)
{
if (_NoMoreData || _data.BytesNotRead >= buf.Length)
{
_data.Read(ref buf);
byte[] b = new byte[2];
for (int i = 0; i < buf.Length; i += _ByteCount)
{
b[0] = buf[i];
b[1] = buf[i + 1];
b = BitConverter.GetBytes((Int16)(BitConverter.ToInt16(b, 0) * _Volume * _VolumeMax));
buf[i] = b[0];
buf[i + 1] = b[1];
if (_ByteCount == 4)
{
b[0] = buf[i + 2];
b[1] = buf[i + 3];
b = BitConverter.GetBytes((Int16)(BitConverter.ToInt16(b, 0) * _Volume * _VolumeMax));
buf[i + 2] = b[0];
buf[i + 3] = b[1];
}
}
}
if (_data.BytesNotRead < BUFSIZE - 10000L)
{
EventDecode.Set();
_waiting = false;
}
else
_waiting = true;
float latency = buf.Length / _BytesPerSecond + CConfig.AudioLatency/1000f;
float time = _TimeCode - _data.BytesNotRead / _BytesPerSecond - latency;
if (!_NoMoreData)
_CurrentTime = _SyncTimer.Update(time);
}
try
{
Marshal.Copy(buf, 0, output, (int)frameCount * _ByteCount);
}
catch (Exception e)
{
CLog.LogError("Error PortAudio.StreamCallback: " + e.Message);
}
return PortAudio.PaStreamCallbackResult.paContinue;
}