private void SendPulse()
{
var shortSamples = new short[audioFormat.BytesPerFrame / 2];
for (int i = 0; i < shortSamples.Length; i++)
{
shortSamples[i] = oscillator.GetNextSample();
}
var byteSamples = new byte[audioFormat.BytesPerFrame];
Buffer.BlockCopy(shortSamples, 0, byteSamples, 0, byteSamples.Length);
lastPulseSentAt = DateTime.Now;
lastFrame = byteSamples;
}
protected override void OnSamples(long sampleTime, long sampleDuration, byte[] sampleData)
{
try
{
// Raise an event if we managed to successfully capture data.
if (!dataReceived)
{
dataReceived = true;
if (CaptureSuccessful != null)
{
CaptureSuccessful(this, new EventArgs());
}
}
RootAudioContext.Resampler.Write(sampleData);
bool moreFrames;
do
{
if (RootAudioContext.Resampler.Read(RootAudioContext.ResampleBuffer, out moreFrames))
{
// Hack to create single-tone signal - I'm sure there are better places to do this. So sue me.
if (UseGeneratedTone)
{
for (int i = 0; i < RootAudioContext.ResampleBuffer.Length; i++)
{
short nextSample = oscillator.GetNextSample();
RootAudioContext.ResampleBuffer[i] = (byte)nextSample;
RootAudioContext.ResampleBuffer[++i] = (byte)(nextSample >> 8);
}
}
var resetEvents = new AutoResetEvent[AudioControllers.Count];
for (int i = 0; i < AudioControllers.Count; i++)
{
// Throw the actual encoding and sending out onto a separate thread, so we can take advantage of multiple processors.
resetEvents[i] = new AutoResetEvent(false);
ThreadPool.QueueUserWorkItem(obj =>
{
var index = (int)obj;
try
{
var copy = new byte[RootAudioContext.ResampleBuffer.Length];
Buffer.BlockCopy(RootAudioContext.ResampleBuffer, 0, copy, 0, RootAudioContext.ResampleBuffer.Length);
var submitCtx = AudioContexts[index];
AudioControllers[index].SubmitRecordedFrame(submitCtx, copy);
}
catch (Exception ex)
{
ClientLogger.Debug(ex.ToString);
}
finally
{
resetEvents[index].Set();
}
}, i);
}
WaitHandle.WaitAll(resetEvents);
}
} while (moreFrames);
}
catch (Exception ex)
{
ClientLogger.Debug(ex.Message);
}
}
