private unsafe static int AirSpyHFSamplesAvailable(airspyhf_transfer *data)
{
int length = data->sample_count;
Complex *samples = data->samples;
ulong num = data->dropped_samples;
IntPtr ctx = data->ctx;
GCHandle gCHandle = GCHandle.FromIntPtr(ctx);
if (!gCHandle.IsAllocated)
{
return(-1);
}
AirspyHFDevice airspyHFDevice = (AirspyHFDevice)gCHandle.Target;
if (airspyHFDevice._decimationStages > 0)
{
int num2 = 1 << airspyHFDevice._decimationStages;
if (airspyHFDevice._ddc == null || airspyHFDevice._ddc.DecimationRatio != num2)
{
airspyHFDevice._ddc = new DownConverter((double)airspyHFDevice._deviceSampleRate, num2);
}
airspyHFDevice._ddc.Frequency = airspyHFDevice._ifShift;
length = airspyHFDevice._ddc.Process(samples, length);
num >>= airspyHFDevice._decimationStages;
}
airspyHFDevice.OnComplexSamplesAvailable(samples, length, num);
return(0);
}
public void Open()
{
this._device = new AirspyHFDevice();
this._device.DecimationStages = this._decimationStages;
this._device.Frequency = (uint)this._frequency;
this._gui.Device = this._device;
this._device.SamplesAvailable += this.Device_SamplesAvailable;
}
public void Close()
{
if (this._device != null)
{
this._gui.Device = null;
this._device.SamplesAvailable -= this.Device_SamplesAvailable;
this._device.Dispose();
this._device = null;
}
}