public ViewGenerator(SavedViewData info, int bufferSize, float sampleRate)
{
//Set
this.info = info;
this.bufferSize = bufferSize;
//Configure offset
mutator = new DownConverter(1);
mutator.SampleRate = sampleRate;
mutator.Frequency = info.offset;
//Configure decimator
decimator = new ComplexDecimator(sampleRate, sampleRate / info.decimation, (int)info.decimation);
sampleRate /= info.decimation;
//Get component list and image size
components = info.CreateComponents(sampleRate, out width, out height);
//Find out what workers are required
foreach (var c in components)
{
fftRequired = fftRequired || c.RequiresFft;
demodulatorRequired = demodulatorRequired || c.RequiresAudio;
}
//Create these workers
if (fftRequired)
{
fft = new FFTProcessorComplex(info.fftSize);
}
if (demodulatorRequired)
{
//Set up decimator
audioDecimationRate = DecimationUtil.CalculateDecimationRate(sampleRate, info.audioBandwidth, out audioOutputRate);
audioDecimator = new ComplexDecimator(sampleRate, info.audioBandwidth, audioDecimationRate);
//Set up demodulator
demodulator = new WbFmDemodulator();
demodulator.Configure(bufferSize, audioOutputRate);
}
//Initialize all
foreach (var c in components)
{
c.Init(info, fft, demodulator);
}
//Create buffers
iqBuffer = UnsafeBuffer.Create(bufferSize, sizeof(Complex));
iqPtr = (Complex *)iqBuffer;
}
protected override void PrepareBenchmark(int sampleRate, int bufferSize)
{
//Create buffers
iqBuffer = UnsafeBuffer.Create(bufferSize, out iqBufferPtr);
audioABuffer = UnsafeBuffer.Create(bufferSize, out audioABufferPtr);
audioBBuffer = UnsafeBuffer.Create(bufferSize, out audioBBufferPtr);
//Create IQ decimator
decimator = ComplexDecimator.CalculateDecimator(sampleRate, bandwidth, 15, bandwidth * 0.05f, out float decimatedIqRate);
//Create demodulator
demod = new WbFmDemodulator();
demod.Configure(bufferSize, sampleRate, DecimationUtil.CalculateDecimationRate(decimatedIqRate, outputRateTarget, out float actualOutputRate));
demod.UseRds();
}
