public override bool Read()
{
lock (SampleBufferLock)
{
int read = InputStream.Read(InBuffer, 0, InBuffer.Length);
if (read != InBuffer.Length)
{
SamplesRead = 0;
return(false);
}
ForwardData(InBuffer);
if (InternalOversampling > 1)
{
ByteUtil.SamplesFromBinary(InBuffer, OversampleI, OversampleQ, DataFormat, InvertedSpectrum);
IOversampler.Resample(OversampleI, ref SourceSamplesI);
QOversampler.Resample(OversampleQ, ref SourceSamplesQ);
}
else
{
ByteUtil.SamplesFromBinary(InBuffer, SourceSamplesI, SourceSamplesQ, DataFormat, InvertedSpectrum);
}
SamplesRead = SourceSamplesI.Length;
SaveData();
}
return(true);
}
public override bool Read()
{
/* buffer overrun? */
if (ShmemChannel.Length > ShmemChannel.bufferSize * 0.9f)
{
BufferOverrun = true;
}
/* in case we should use some other input buffer */
if (NextInBufferAvailable)
{
NextInBufferAvailable = false;
InBuffer = NextInBuffer;
}
/* when the rate has changed */
if (ShmemChannel.Rate != 0 && InputSamplingRate != ShmemChannel.Rate / 2)
{
ForceInputRate(ShmemChannel.Rate / 2);
}
int read = ShmemChannel.Read(InBuffer, 0, InBuffer.Length);
if (TraceReads)
{
Log.AddMessage("ShmemSamplesource", "Read Block: " + read + "/" + InBuffer.Length + " (" + ShmemChannel.Length + " available)");
}
/* in case buffer size has changed meanwhile, return */
if (NextInBufferAvailable)
{
SamplesRead = 0;
return(true);
}
/* seems we have timed out */
if (read == 0)
{
SamplesRead = 0;
return(false);
}
/* in case we could not read enough bytes, return */
if (read != InBuffer.Length)
{
SamplesRead = 0;
return(false);
}
lock (SampleBufferLock)
{
if (InternalOversampling != 1)
{
ByteUtil.SamplesFromBinary(InBuffer, OversampleI, OversampleQ, DataFormat, InvertedSpectrum);
IOversampler.Resample(OversampleI, ref SourceSamplesI);
QOversampler.Resample(OversampleQ, ref SourceSamplesQ);
}
else
{
ByteUtil.SamplesFromBinary(InBuffer, SourceSamplesI, SourceSamplesQ, DataFormat, InvertedSpectrum);
}
SamplesRead = SourceSamplesI.Length;
SaveData();
}
return(true);
}