private void btnFormat_Click(object sender, EventArgs e)
{
DataFormatDialog dlg = new DataFormatDialog();
dlg.SamplingRate = SamplingRate;
dlg.SampleFormat = SampleFormat;
if (dlg.ShowDialog() == DialogResult.OK)
{
SampleFormat = dlg.SampleFormat;
_SampleSource.DataFormat = SampleFormat;
_SampleSource.ForceInputRate(dlg.SamplingRate);
NetShmemSink.Rate = dlg.SamplingRate * 2;
}
}
public FileSampleSource(string fileName, int oversampling) : base(oversampling)
{
SourceName = fileName;
switch (WaveFileReader.EstimateType(fileName))
{
case eFileType.CFile:
/* USRP has an inverted spectrum */
InvertedSpectrum = true;
DataFormat = ByteUtil.eSampleFormat.Direct32BitIQFloat64k;
/* calculate sampling rate from USRPs decimation rate */
CFileDecimationDialog dec = new CFileDecimationDialog();
dec.EstimateDecimation(fileName);
dec.ShowDialog();
if (dec.Decimation < 1)
{
dec.Decimation = 1;
}
InputSamplingRate = (double)dec.ClockRate / dec.Decimation;
InputStream = new WaveFileReader(fileName, eFileType.CFile);
break;
case eFileType.RawIQ:
InvertedSpectrum = false;
DataFormatDialog dlg = new DataFormatDialog();
dlg.SampleFormat = ByteUtil.eSampleFormat.Direct16BitIQFixedPointLE;
dlg.EstimateDetails(fileName);
dlg.ShowDialog();
InputSamplingRate = dlg.SamplingRate;
DataFormat = dlg.SampleFormat;
InputStream = new WaveFileReader(fileName, eFileType.RawIQ);
break;
case eFileType.Rtsa:
InvertedSpectrum = false;
InputStream = new RtsaFileReader(fileName);
InputSamplingRate = InputStream.SamplingRate;
DataFormat = ByteUtil.eSampleFormat.Direct32BitIQFloat;
break;
case eFileType.WAV:
InputStream = new WaveFileReader(fileName, eFileType.WAV);
InputSamplingRate = InputStream.SamplingRate;
DataFormat = ByteUtil.eSampleFormat.Direct16BitIQFixedPointLE;
break;
case eFileType.CSV:
InputStream = new CsvFileReader(fileName);
InputSamplingRate = InputStream.SamplingRate;
DataFormat = ByteUtil.eSampleFormat.Direct32BitIQFloat;
break;
case eFileType.Unknown:
return;
}
AllocateBuffers();
}
