private void CloseWaveInDevice()
{
if (this.waveInHandle == IntPtr.Zero)
{
return;
}
WaveInterop.waveInReset(this.waveInHandle);
if (this.buffers != null)
{
for (int i = 0; i < this.buffers.Length; i++)
{
this.buffers[i].Dispose();
}
this.buffers = null;
}
WaveInterop.waveInClose(this.waveInHandle);
this.waveInHandle = IntPtr.Zero;
}
public void StopRecording()
{
if (this.recording)
{
this.recording = false;
MmException.Try(WaveInterop.waveInStop(this.waveInHandle), "waveInStop");
for (int i = 0; i < this.buffers.Length; i++)
{
int num = (i + this.lastReturnedBufferIndex + 1) % this.buffers.Length;
WaveInBuffer waveInBuffer = this.buffers[num];
if (waveInBuffer.Done)
{
this.RaiseDataAvailable(waveInBuffer);
}
}
this.RaiseRecordingStopped(null);
}
}
public WaveOutBuffer(IntPtr hWaveOut, int bufferSize, IWaveProvider bufferFillStream, object waveOutLock)
{
this.bufferSize = bufferSize;
this.buffer = new byte[bufferSize];
this.hBuffer = GCHandle.Alloc(this.buffer, GCHandleType.Pinned);
this.hWaveOut = hWaveOut;
this.waveStream = bufferFillStream;
this.waveOutLock = waveOutLock;
this.header = new WaveHeader();
this.hHeader = GCHandle.Alloc(this.header, GCHandleType.Pinned);
this.header.dataBuffer = this.hBuffer.AddrOfPinnedObject();
this.header.bufferLength = bufferSize;
this.header.loops = 1;
this.hThis = GCHandle.Alloc(this);
this.header.userData = (IntPtr)this.hThis;
lock (waveOutLock)
{
MmException.Try(WaveInterop.waveOutPrepareHeader(hWaveOut, this.header, Marshal.SizeOf(this.header)), "waveOutPrepareHeader");
}
}
protected void Dispose(bool disposing)
{
if (this.waveInHandle != IntPtr.Zero)
{
WaveInterop.waveInUnprepareHeader(this.waveInHandle, this.header, Marshal.SizeOf(this.header));
this.waveInHandle = IntPtr.Zero;
}
if (this.hHeader.IsAllocated)
{
this.hHeader.Free();
}
if (this.hBuffer.IsAllocated)
{
this.hBuffer.Free();
}
if (this.hThis.IsAllocated)
{
this.hThis.Free();
}
}
/// <summary>
/// Stop and reset the WaveOut device
/// </summary>
public void Stop()
{
if (playbackState != PlaybackState.Stopped)
{
// in the call to waveOutReset with function callbacks
// some drivers will block here until OnDone is called
// for every buffer
playbackState = PlaybackState.Stopped; // set this here to avoid a problem with some drivers whereby
MmResult result;
lock (waveOutLock)
{
result = WaveInterop.waveOutReset(hWaveOut);
}
if (result != MmResult.NoError)
{
throw new MmException(result, "waveOutReset");
}
callbackEvent.Set(); // give the thread a kick, make sure we exit
}
}
public static void SetWaveOutVolume(float value, IntPtr hWaveOut, object lockObject)
{
if (value < 0)
{
throw new ArgumentOutOfRangeException(nameof(value), "Volume must be between 0.0 and 1.0");
}
if (value > 1)
{
throw new ArgumentOutOfRangeException(nameof(value), "Volume must be between 0.0 and 1.0");
}
float left = value;
float right = value;
int stereoVolume = (int)(left * 0xFFFF) + ((int)(right * 0xFFFF) << 16);
MmResult result;
lock (lockObject)
{
result = WaveInterop.waveOutSetVolume(hWaveOut, stereoVolume);
}
MmException.Try(result, "waveOutSetVolume");
}
protected void Dispose(bool disposing)
{
if (this.hHeader.IsAllocated)
{
this.hHeader.Free();
}
if (this.hBuffer.IsAllocated)
{
this.hBuffer.Free();
}
if (this.hThis.IsAllocated)
{
this.hThis.Free();
}
if (this.hWaveOut != IntPtr.Zero)
{
object obj = this.waveOutLock;
lock (obj)
{
WaveInterop.waveOutUnprepareHeader(this.hWaveOut, this.header, Marshal.SizeOf(this.header));
}
this.hWaveOut = IntPtr.Zero;
}
}
public void Reuse()
{
MmException.Try(WaveInterop.waveInUnprepareHeader(this.waveInHandle, this.header, Marshal.SizeOf(this.header)), "waveUnprepareHeader");
MmException.Try(WaveInterop.waveInPrepareHeader(this.waveInHandle, this.header, Marshal.SizeOf(this.header)), "waveInPrepareHeader");
MmException.Try(WaveInterop.waveInAddBuffer(this.waveInHandle, this.header, Marshal.SizeOf(this.header)), "waveInAddBuffer");
}
private void OpenWaveInDevice()
{
this.CloseWaveInDevice();
MmException.Try(WaveInterop.waveInOpenWindow(out this.waveInHandle, (IntPtr)this.DeviceNumber, this.WaveFormat, this.callbackEvent.SafeWaitHandle.DangerousGetHandle(), IntPtr.Zero, WaveInterop.WaveInOutOpenFlags.CallbackEvent), "waveInOpen");
this.CreateBuffers();
}
public void StopRecording()
{
this.recording = false;
this.callbackEvent.Set();
MmException.Try(WaveInterop.waveInStop(this.waveInHandle), "waveInStop");
}