public WaveIn(int Device, WAVEFORMATEX Format, int BufferSize)
{
Log.Global.WriteLine(MessageType.Info, "Opening wave in device '{0}'.", Device);
// Construct waveIn
MmException.CheckThrow(Winmm.waveInOpen(out waveIn, Device, ref Format, IntPtr.Zero, IntPtr.Zero, WaveInOpenFlags.CALLBACK_NULL));
// Create buffers.
buffers = new List <InBuffer>();
for (int i = 0; i < 4; ++i)
{
InBuffer b = new InBuffer(waveIn, Format, BufferSize);
b.Record();
buffers.Add(b);
}
MmException.CheckThrow(Winmm.waveInStart(waveIn));
}
private void Proc()
{
Thread.CurrentThread.Name = "WaveAudio Stream";
try
{
Log.Global.WriteLine(MessageType.Info, "Entering streaming thread");
EventWaitHandle[] events = waveIn.Select(i => i.Callback).Concat(waveOut.Select(i => i.Callback)).ToArray();
Audio.SampleBuffer[] input = new Audio.SampleBuffer[waveIn.Length];
Audio.SampleBuffer[] output = new Audio.SampleBuffer[waveOut.Length];
while (!stop)
{
// TODO: Why can't we use this?
//if (!WaitHandle.WaitAll(events, 100))
// continue;
// Read from the inputs.
for (int i = 0; i < waveIn.Length; ++i)
{
InBuffer b = waveIn[i].GetBuffer();
if (b == null)
{
return;
}
using (Audio.RawLock l = new Audio.RawLock(b.Samples, false, true))
ConvertSamples(b.Data, format, l, l.Count);
b.Record();
input[i] = b.Samples;
}
// Get an available buffer from the outputs.
for (int i = 0; i < waveOut.Length; ++i)
{
OutBuffer b = waveOut[i].GetBuffer();
if (b == null)
{
return;
}
output[i] = b.Samples;
}
// Call the callback.
callback(buffer, input, output, format.nSamplesPerSec);
// Play the results.
for (int i = 0; i < output.Length; ++i)
{
OutBuffer b = (OutBuffer)output[i].Tag;
using (Audio.RawLock l = new Audio.RawLock(b.Samples, true, false))
ConvertSamples(l, b.Data, format, l.Count);
b.Play();
}
}
}
catch (Exception Ex)
{
Log.Global.WriteLine(MessageType.Error, "Unhandled exception on streaming thread '{0}': {1}", Ex.GetType().FullName, Ex.ToString());
}
Log.Global.WriteLine(MessageType.Info, "Exiting streaming thread");
}
private void Proc()
{
Thread.CurrentThread.Name = "WaveAudio Stream";
try
{
Log.Global.WriteLine(MessageType.Info, "Entering streaming thread");
Audio.SampleBuffer[] input = new Audio.SampleBuffer[waveIn.Length];
Audio.SampleBuffer[] output = new Audio.SampleBuffer[waveOut.Length];
while (!stop)
{
// Read from the inputs.
for (int i = 0; i < waveIn.Length; ++i)
{
InBuffer b = null;
do
{
b = waveIn[i].GetBuffer();
} while (b == null && !stop);
if (b != null)
{
ConvertSamples(b.Data, format, b.Samples.Raw, b.Samples.Count);
b.Record();
input[i] = b.Samples;
}
}
// Get an available buffer from the outputs.
for (int i = 0; i < waveOut.Length; ++i)
{
OutBuffer b = null;
do
{
b = waveOut[i].GetBuffer();
} while (b == null && !stop);
if (b != null)
{
output[i] = b.Samples;
}
}
if (!stop)
{
Debug.Assert(input.All(i => i != null));
Debug.Assert(output.All(i => i != null));
// Call the callback.
callback(buffer, input, output, format.nSamplesPerSec);
// Play the results.
for (int i = 0; i < output.Length; ++i)
{
OutBuffer b = (OutBuffer)output[i].Tag;
ConvertSamples(b.Samples.Raw, b.Data, format, b.Samples.Count);
b.Play();
}
}
}
}
catch (Exception Ex)
{
Log.Global.WriteLine(MessageType.Error, "Unhandled exception on streaming thread '{0}': {1}", Ex.GetType().FullName, Ex.ToString());
}
Log.Global.WriteLine(MessageType.Info, "Exiting streaming thread");
}
