private void Form1_Load(object sender, EventArgs e)
{
//Add all entries to the pie graph to start off with
for (int i = 0; i < 32; i++)
{
rdsGroupChart.Series["Groups"].Points.AddXY("", 0);
rdsGroupChart.Series["Groups"].Points[i].IsVisibleInLegend = false;
}
//Configure table
rdsHistory.Columns.Add(GenerateColumn("PI", 40));
rdsHistory.Columns.Add(GenerateColumn("Group", 50));
rdsHistory.Columns.Add(GenerateColumn("Description", -1));
//Create buffers
iqBuffer = UnsafeBuffer.Create(BUFFER_SIZE, out iqBufferPtr);
audioBuffer = UnsafeBuffer.Create(BUFFER_SIZE, out audioBufferPtr);
//Open USB device
usb = new LibUSBProvider();
device = AirSpyDevice.OpenDevice(usb);
//Configure radio
device.SetLinearGain(gain.Value / 100f);
device.CenterFrequency = (long)(freq.Value * 1000000);
device.SampleRate = 3000000;
device.StartRx();
//Create filter
var filterBuilder = new LowPassFilterBuilder(device.SampleRate, BANDWIDTH / 2)
.SetAutomaticTapCount(BANDWIDTH * 0.1f, 50)
.SetWindow();
filter = ComplexFirFilter.CreateFirFilter(filterBuilder, filterBuilder.GetDecimation(out float decimatedSampleRate));
//Create FM and RDS
fm = new WbFmDemodulator();
fm.Configure(BUFFER_SIZE, decimatedSampleRate, 48000);
fm.OnStereoDetected += Fm_OnStereoDetected;
fm.OnRdsDetected += Fm_OnRdsDetected;
rds = new RdsClient();
fm.OnRdsFrameEmitted += (ulong frame) => rds.ProcessFrame(frame);
//Bind RDS client commands
rds.ProgramService.OnPartialTextReceived += ProgramService_OnPartialTextReceived;
rds.PiCode.OnPiCodeChanged += PiCode_OnPiCodeChanged;
rds.ProgramType.OnCategoryChanged += ProgramType_OnCategoryChanged;
rds.RadioText.OnPartialTextReceived += RadioText_OnPartialTextReceived;
rds.OnCommand += Rds_OnCommand;
//Create worker thread
worker = new Thread(WorkerThread);
worker.IsBackground = true;
worker.Start();
}
static void Main(string[] args)
{
LibUSBProvider provider = new LibUSBProvider();
var testd = provider.FindDevices(0x1d50, 0x60a1)[0];
testd.OpenDevice();
var b = new LibSDR.Components.IO.USB.UsbBuffer(512);
int testr = testd.BulkTransfer(LibSDR.Components.IO.USB.UsbTransferDirection.READ, 0x01, b, 1000);
AirSpyDevice device = AirSpyDevice.OpenDevice(provider);
device.StartRx();
device.SampleRate = 10000000;
//device.SampleRate = 3000000;
if (true)
{
device.CenterFrequency = 93700000;
device.SetLinearGain(6 / 21f);
}
else
{
device.CenterFrequency = 144430000;
device.SetLinearGain(2 / 21f);
}
test = new WavFileWriter(new FileStream("F:\\test.wav", FileMode.Create), (int)device.SampleRate, 2, LibSDR.Components.IO.SampleFormat.Short16, 1 << 16);
UnsafeBuffer buffer = UnsafeBuffer.Create(1 << 16, out Complex * bufferPtr);
while (true)
{
int read = device.Read(bufferPtr, 1 << 16, 1000);
test.Write(bufferPtr, read);
test.FinalizeFile();
}
}