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 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 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();
}
/// <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);
}
/// <summary>
/// Convenience method to safely open an output stream and log potential error
/// </summary>
/// <param name="stream"></param>
/// <param name="outputParameters"></param>
/// <param name="sampleRate"></param>
/// <param name="framesPerBuffer"></param>
/// <param name="streamFlags"></param>
/// <param name="streamCallback"></param>
/// <param name="userData"></param>
/// <returns>True on success</returns>
public bool OpenOutputStream(out IntPtr stream, ref PortAudio.PaStreamParameters?outputParameters,
double sampleRate, uint framesPerBuffer, PortAudio.PaStreamFlags streamFlags,
PortAudio.PaStreamCallbackDelegate streamCallback, IntPtr userData)
{
PortAudio.PaStreamParameters?inputParameters = null;
return
(!CheckError("OpenOutputStream",
OpenStream(out stream, ref inputParameters, ref outputParameters, sampleRate, framesPerBuffer, streamFlags, streamCallback, userData)));
}
/// <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 PortAudio.PaError OpenStream(out IntPtr stream, ref PortAudio.PaStreamParameters?inputParameters, ref PortAudio.PaStreamParameters?outputParameters,
double sampleRate, uint framesPerBuffer, PortAudio.PaStreamFlags streamFlags,
PortAudio.PaStreamCallbackDelegate streamCallback, IntPtr userData)
{
lock (_Mutex)
{
if (_Disposed)
{
throw new ObjectDisposedException("PortAudioHandle already disposed");
}
PortAudio.PaError res = PortAudio.Pa_OpenStream(out stream, ref inputParameters, ref outputParameters, sampleRate, framesPerBuffer, streamFlags, streamCallback,
userData);
if (res == PortAudio.PaError.paNoError)
{
_Streams.Add(stream);
}
return(res);
}
}
public void Play()
{
IntPtr userdata = IntPtr.Zero; //intptr.zero is essentially just a null pointer
callbackDelegate = new PortAudio.PaStreamCallbackDelegate(myPaStreamCallback);
PortAudio.Pa_Initialize();
uint sampleFormat = 0;
switch (bitDepth)
{
case 8:
sampleFormat = 16;
break;
case 16:
sampleFormat = 8;
break;
case 24:
sampleFormat = 4;
break;
case 32:
sampleFormat = 2;
break;
default:
Console.WriteLine("broken WAV");
break;
}
//not sure why framesPerBuffer is so strange.
PortAudio.PaError error = PortAudio.Pa_OpenDefaultStream(out stream, inputChannels, outputChannels, sampleFormat,
sampleRate / outputChannels, (uint)(NUM_SAMPLES / (frameSize * 2)), callbackDelegate, userdata);
PortAudio.Pa_StartStream(stream);
Thread myThread = new Thread(new ThreadStart(play_loop));
myThread.Start();
}
public void OpenStream()
{
if (Config == null)
{
throw new Exception("Configuration settings have not been applied. You must first configure the host");
}
if (StreamState != StreamState.Closed)
{
throw new Exception("Trying to Open a stream that does not have State: Closed. State is " + StreamState.ToString());
}
callbackDelegate = RealtimeCallback;
streamFinishedDelegate = StreamFinished;
var err = PortAudio.Pa_OpenStream(
out Config.Stream,
ref Config.inputParameters,
ref Config.outputParameters,
Samplerate,
BufferSize,
(PortAudio.PaStreamFlags.paClipOff | PortAudio.PaStreamFlags.paDitherOff),
callbackDelegate,
new IntPtr(0)
);
if (err != PortAudio.PaError.paNoError)
{
throw new Exception(PortAudio.Pa_GetErrorText(err));
}
err = PortAudio.Pa_SetStreamFinishedCallback(Config.Stream, streamFinishedDelegate);
if (err != PortAudio.PaError.paNoError)
{
throw new Exception(PortAudio.Pa_GetErrorText(err));
}
StreamState = StreamState.Open;
}
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);
}
private unsafe IntPtr OpenStream(SoundEffect soundEffect)
{
IntPtr stream;
PortAudio.PaStreamCallbackDelegate callback = new PortAudio.PaStreamCallbackDelegate(soundEffect.CallBack);
PortAudio.PaErrorCode errorCode = PortAudio.Pa_OpenDefaultStream(out stream, 0, 2, (uint)PortAudio.PaSampleFormat.paFloat32, 22000, 256, callback, IntPtr.Zero);
return stream;
}
public void OpenStream()
{
if (Config == null)
throw new Exception("Configuration settings have not been applied. You must first configure the host");
if (StreamState != StreamState.Closed)
throw new Exception("Trying to Open a stream that does not have State: Closed. State is " + StreamState.ToString());
callbackDelegate = RealtimeCallback;
streamFinishedDelegate = StreamFinished;
var err = PortAudio.Pa_OpenStream(
out Config.Stream,
ref Config.inputParameters,
ref Config.outputParameters,
Samplerate,
BufferSize,
(PortAudio.PaStreamFlags.paClipOff | PortAudio.PaStreamFlags.paDitherOff),
callbackDelegate,
new IntPtr(0)
);
if (err != PortAudio.PaError.paNoError)
throw new Exception(PortAudio.Pa_GetErrorText(err));
err = PortAudio.Pa_SetStreamFinishedCallback(Config.Stream, streamFinishedDelegate);
if (err != PortAudio.PaError.paNoError)
throw new Exception(PortAudio.Pa_GetErrorText(err));
StreamState = StreamState.Open;
}
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;
uint bufsize = (uint)CConfig.AudioBufferSize;
errorCheck("OpenDefaultStream", PortAudio.Pa_OpenStream(
out _Ptr,
IntPtr.Zero,
ref outputParams,
format.SamplesPerSecond,
bufsize,
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;
}
