private void GetChannelNames(RealtimeHostConfig config)
{
if (config == null)
{
InputNames = new string[0];
OutputNames = new string[0];
return;
}
var inputDeviceInfo = PortAudio.Pa_GetDeviceInfo(config.InputDeviceID);
var outputDeviceInfo = PortAudio.Pa_GetDeviceInfo(config.OutputDeviceID);
InputNames = Enumerable.Range(0, inputDeviceInfo.maxInputChannels)
.Select(ch =>
{
string chName = null;
PortAudio.PaAsio_GetInputChannelName((PortAudio.PaDeviceIndex)config.InputDeviceID, ch, ref chName);
return((ch + 1) + ": " + chName);
})
.ToArray();
OutputNames = Enumerable.Range(0, outputDeviceInfo.maxOutputChannels)
.Select(ch =>
{
string chName = null;
PortAudio.PaAsio_GetOutputChannelName((PortAudio.PaDeviceIndex)config.OutputDeviceID, ch, ref chName);
return((ch + 1) + ": " + chName);
})
.ToArray();
}
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;
}
public void Record()
{
IntPtr userdata = IntPtr.Zero; //intptr.zero is essentially just a null pointer
callbackDelegate = new PortAudio.PaStreamCallbackDelegate(myPaStreamCallback);
PortAudio.Pa_Initialize();
PortAudio.PaStreamParameters outputparams = new PortAudio.PaStreamParameters();
outputparams.channelCount = 1;
outputparams.sampleFormat = PortAudio.PaSampleFormat.paInt16;
outputparams.device = PortAudio.Pa_GetDefaultInputDevice();
outputparams.suggestedLatency = PortAudio.Pa_GetDeviceInfo(outputparams.device).defaultLowInputLatency;
outputparams.hostApiSpecificStreamInfo = IntPtr.Zero;
PortAudio.PaStreamParameters a = new PortAudio.PaStreamParameters(); //uninteresting output params cause i cant give it null
a.channelCount = 1;
a.sampleFormat = PortAudio.PaSampleFormat.paInt16;
a.device = PortAudio.Pa_GetDefaultOutputDevice();
a.suggestedLatency = PortAudio.Pa_GetDeviceInfo(a.device).defaultLowOutputLatency;
a.hostApiSpecificStreamInfo = IntPtr.Zero;
PortAudio.PaError error = PortAudio.Pa_OpenStream(out stream, ref outputparams, ref a, this.sampleRate,
(uint)NUM_SAMPLES, PortAudio.PaStreamFlags.paClipOff, callbackDelegate, IntPtr.Zero);
this.isRecording = true;
PortAudio.Pa_StartStream(stream);
Thread myThread = new Thread(new ThreadStart(record_loop));
myThread.Start();
}
public PortAudioPlayer(int channels, int frequency, uint framesPerBuffer,
PortAudio.PaStreamCallbackDelegate paStreamCallback)
{
log("Initializing...");
this.channels = channels;
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());
}
/// <summary>
/// Init PortAudio and list record devices
/// </summary>
/// <returns>true if success</returns>
public bool Init()
{
_Devices = new List <SRecordDevice>();
try
{
if (_initialized)
{
CloseAll();
}
if (errorCheck("Initialize", PortAudio.Pa_Initialize()))
{
return(false);
}
_initialized = true;
int hostAPI = apiSelect();
int numDevices = PortAudio.Pa_GetDeviceCount();
for (int i = 0; i < numDevices; i++)
{
PortAudio.PaDeviceInfo info = PortAudio.Pa_GetDeviceInfo(i);
if (info.hostApi == hostAPI && info.maxInputChannels > 0)
{
SRecordDevice dev = new SRecordDevice();
dev.ID = i;
dev.Name = info.name;
dev.Driver = info.name + i.ToString();
dev.Inputs = new List <SInput>();
SInput inp = new SInput();
inp.Name = "Default";
inp.Channels = info.maxInputChannels;
if (inp.Channels > 2)
{
inp.Channels = 2; //more are not supported in vocaluxe
}
dev.Inputs.Add(inp);
_Devices.Add(dev);
}
}
_recHandle = new IntPtr[_Devices.Count];
_myRecProc = new PortAudio.PaStreamCallbackDelegate(myPaStreamCallback);
_DeviceConfig = _Devices.ToArray();
}
catch (Exception e)
{
_initialized = false;
CLog.LogError("Error initializing PortAudio: " + e.Message);
return(false);
}
return(true);
}
public int Open(string FileName)
{
if (_FileOpened)
{
return(-1);
}
if (!System.IO.File.Exists(FileName))
{
return(-1);
}
if (_FileOpened)
{
return(-1);
}
_Decoder = new CAudioDecoderFFmpeg();
_Decoder.Init();
try
{
if (errorCheck("Initialize", PortAudio.Pa_Initialize()))
{
return(-1);
}
_Initialized = true;
int hostApi = apiSelect();
_apiInfo = PortAudio.Pa_GetHostApiInfo(hostApi);
_outputDeviceInfo = PortAudio.Pa_GetDeviceInfo(_apiInfo.defaultOutputDevice);
_paStreamCallback = new PortAudio.PaStreamCallbackDelegate(_PaStreamCallback);
if (_outputDeviceInfo.defaultLowOutputLatency < 0.1)
{
_outputDeviceInfo.defaultLowOutputLatency = 0.1;
}
}
catch (Exception)
{
_Initialized = false;
CLog.LogError("Error Init PortAudio Playback");
return(-1);
}
_FileName = FileName;
_Decoder.Open(FileName);
_Duration = _Decoder.GetLength();
FormatInfo format = _Decoder.GetFormatInfo();
_ByteCount = 2 * format.ChannelCount;
_BytesPerSecond = format.SamplesPerSecond * _ByteCount;
_CurrentTime = 0f;
_SyncTimer.Time = _CurrentTime;
AudioStreams stream = new AudioStreams(0);
IntPtr data = new IntPtr(0);
PortAudio.PaStreamParameters outputParams = new PortAudio.PaStreamParameters();
outputParams.channelCount = format.ChannelCount;
outputParams.device = _apiInfo.defaultOutputDevice;
outputParams.sampleFormat = PortAudio.PaSampleFormat.paInt16;
outputParams.suggestedLatency = _outputDeviceInfo.defaultLowOutputLatency;
errorCheck("OpenDefaultStream", PortAudio.Pa_OpenStream(
out _Ptr,
IntPtr.Zero,
ref outputParams,
format.SamplesPerSecond,
(uint)CConfig.AudioBufferSize,
PortAudio.PaStreamFlags.paNoFlag,
_paStreamCallback,
data));
stream.handle = _Ptr.ToInt32();
if (stream.handle != 0)
{
_Paused = true;
_waiting = true;
_FileOpened = true;
_data = new RingBuffer(BUFSIZE);
_NoMoreData = false;
_DecoderThread.Priority = ThreadPriority.Normal;
_DecoderThread.Name = Path.GetFileName(FileName);
_DecoderThread.Start();
return(stream.handle);
}
return(-1);
}
/// <summary>
/// Start Voice Capturing
/// </summary>
/// <param name="DeviceConfig"></param>
/// <returns></returns>
public bool Start(SRecordDevice[] DeviceConfig)
{
if (!_initialized)
{
return(false);
}
if (DeviceConfig == null)
{
return(false);
}
if (_recHandle == null)
{
return(false);
}
if (_recHandle.Length == 0)
{
return(false);
}
for (int i = 0; i < _Buffer.Length; i++)
{
_Buffer[i].Reset();
}
for (int i = 0; i < _recHandle.Length; i++)
{
_recHandle[i] = IntPtr.Zero;
}
_DeviceConfig = DeviceConfig;
bool[] active = new bool[DeviceConfig.Length];
for (int dev = 0; dev < DeviceConfig.Length; dev++)
{
active[dev] = false;
for (int inp = 0; inp < DeviceConfig[dev].Inputs.Count; inp++)
{
if (DeviceConfig[dev].Inputs[inp].PlayerChannel1 > 0 ||
DeviceConfig[dev].Inputs[inp].PlayerChannel2 > 0)
{
active[dev] = true;
}
}
}
bool result = true;
for (int i = 0; i < _recHandle.Length; i++)
{
if (active[i])
{
PortAudio.PaStreamParameters inputParams = new PortAudio.PaStreamParameters();
inputParams.channelCount = _DeviceConfig[i].Inputs[0].Channels;
inputParams.device = _DeviceConfig[i].ID;
inputParams.sampleFormat = PortAudio.PaSampleFormat.paInt16;
inputParams.suggestedLatency = PortAudio.Pa_GetDeviceInfo(_DeviceConfig[i].ID).defaultLowInputLatency;
if (errorCheck("OpenStream", PortAudio.Pa_OpenStream(
out _recHandle[i],
ref inputParams,
IntPtr.Zero,
44100,
882,
PortAudio.PaStreamFlags.paNoFlag,
_myRecProc,
new IntPtr(i))))
{
return(false);
}
if (errorCheck("Start Stream", PortAudio.Pa_StartStream(_recHandle[i])))
{
return(false);
}
}
}
return(result);
}
