internal PaStream(
IntPtr stream, StreamCallbackContainer streamCallbackContainer,
PaSampleFormat inputSampleFormat, PaSampleFormat outputSampleFormat,
int numInputChannels, int numOutputChannels)
{
this.stream = stream;
this.streamCallbackContainer = streamCallbackContainer;
}
public PaStream OpenStream(
PaStreamParameters?inputParameters, PaStreamParameters?outputParameters,
double sampleRate, int framesPerBuffer, PaStreamFlags streamFlags,
PaStreamCallback streamCallback, object userData)
{
var streamCallbackContainer = new StreamCallbackContainer(
streamCallback,
inputParameters.HasValue ? inputParameters.Value.sampleFormat : 0,
outputParameters.HasValue ? outputParameters.Value.sampleFormat : 0,
inputParameters.HasValue ? inputParameters.Value.channelCount : 0,
outputParameters.HasValue ? outputParameters.Value.channelCount : 0,
userData);
IntPtr stream;
unsafe
{
PaStreamParameters inputParametersTemp, outputParametersTemp;
IntPtr inputParametersPtr = IntPtr.Zero;
if (inputParameters.HasValue)
{
inputParametersPtr = new IntPtr(&inputParametersTemp);
Marshal.StructureToPtr <PaStreamParameters>(inputParameters.Value, inputParametersPtr, false);
}
IntPtr outputParametersPtr = IntPtr.Zero;
if (outputParameters.HasValue)
{
outputParametersPtr = new IntPtr(&outputParametersTemp);
Marshal.StructureToPtr <PaStreamParameters>(outputParameters.Value, outputParametersPtr, false);
}
PaErrorException.ThrowIfError(Pa_OpenStream(
new IntPtr(&stream),
inputParametersPtr, outputParametersPtr,
sampleRate, (unsigned_long_t)framesPerBuffer, streamFlags,
streamCallbackContainer.Callback, IntPtr.Zero));
}
return(new PaStream(
stream, streamCallbackContainer,
inputParameters.HasValue ? inputParameters.Value.sampleFormat : 0,
outputParameters.HasValue ? outputParameters.Value.sampleFormat : 0,
inputParameters.HasValue ? inputParameters.Value.channelCount : 0,
outputParameters.HasValue ? outputParameters.Value.channelCount : 0));
}
public PaStream OpenDefaultStream(
int numInputChannels, int numOutputChannels, PaSampleFormat sampleFormat,
double sampleRate, int framesPerBuffer, PaStreamFlags streamFlags,
PaStreamCallback streamCallback, object userData)
{
var streamCallbackContainer = new StreamCallbackContainer(
streamCallback,
sampleFormat, sampleFormat,
numInputChannels, numOutputChannels, userData);
IntPtr stream;
unsafe
{
PaErrorException.ThrowIfError(Pa_OpenDefaultStream(
new IntPtr(&stream),
numInputChannels, numOutputChannels, sampleFormat,
sampleRate, (unsigned_long_t)framesPerBuffer, streamFlags,
streamCallbackContainer.Callback, IntPtr.Zero));
}
return(new PaStream(stream, streamCallbackContainer));
}
internal PaStream(IntPtr stream, StreamCallbackContainer streamCallbackContainer)
{
this.stream = stream;
this.streamCallbackContainer = streamCallbackContainer;
}