unsafe protected override void OnDispose()
{
DirectSoundWorld.criticalSection.Enter();
if (captureBuffer != null)
{
IDirectSoundCaptureBuffer.Release(captureBuffer);
captureBuffer = null;
}
if (soundCapture != null)
{
IDirectSoundCapture8.Release(soundCapture);
soundCapture = null;
}
DirectSoundWorld.criticalSection.Leave();
base.OnDispose();
}
unsafe public DirectCaptureSound(SoundMode mode, int channels, int frequency, int bufferSize)
{
SoundMode newMode = mode | SoundMode.Loop | SoundMode.Software;
int hr;
if (DirectSoundWorld.Instance.recordDriverIndex == -1)
{
DirectSoundWorld.Warning("Recording failed. No active device.");
return;
}
GUID deviceGuid = DirectSoundWorld.Instance.recordDriverGuids[
DirectSoundWorld.Instance.recordDriverIndex];
//soundCapture
void */*IDirectSoundCapture8*/ tempSoundCapture;
hr = DSound.DirectSoundCaptureCreate(&deviceGuid, out tempSoundCapture, null);
if (Wrapper.FAILED(hr))
{
DirectSoundWorld.Warning("DirectSoundCaptureCreate", hr);
return;
}
soundCapture = (IDirectSoundCapture8 *)tempSoundCapture;
//waveFormat
waveFormat = (WAVEFORMATEX *)NativeUtils.Alloc(NativeMemoryAllocationType.SoundAndVideo,
sizeof(WAVEFORMATEX));
NativeUtils.ZeroMemory((IntPtr)waveFormat, sizeof(WAVEFORMATEX));
waveFormat->wFormatTag = DSound.WAVE_FORMAT_PCM;
waveFormat->nChannels = (ushort)channels;
waveFormat->nSamplesPerSec = (uint)frequency;
waveFormat->wBitsPerSample = 16;
waveFormat->nBlockAlign = (ushort)((waveFormat->nChannels * waveFormat->wBitsPerSample) / 8);
waveFormat->nAvgBytesPerSec = waveFormat->nSamplesPerSec * waveFormat->nBlockAlign;
//captureBuffer
DSCBUFFERDESC bufferDesc = new DSCBUFFERDESC();
//ZeroMemory( &bufferDesc, sizeof( DSCBUFFERDESC ) );
bufferDesc.dwSize = (uint)sizeof(DSCBUFFERDESC);
bufferDesc.dwBufferBytes = (uint)bufferSize;
bufferDesc.lpwfxFormat = waveFormat;
void */*IDirectSoundCaptureBuffer*/ tempCaptureBuffer;
hr = IDirectSoundCapture8.CreateCaptureBuffer(soundCapture,
ref bufferDesc, out tempCaptureBuffer, null);
if (Wrapper.FAILED(hr))
{
DirectSoundWorld.Warning("CreateCaptureBuffer", hr);
IDirectSoundCapture8.Release(soundCapture);
soundCapture = null;
return;
}
captureBuffer = (IDirectSoundCaptureBuffer *)tempCaptureBuffer;
//get bufferSize
DSCBCAPS bufferCaps = new DSCBCAPS();
//ZeroMemory( &bufferCaps, sizeof( DSCBCAPS ) );
bufferCaps.dwSize = (uint)sizeof(DSCBCAPS);
IDirectSoundCaptureBuffer.GetCaps(captureBuffer, ref bufferCaps);
this.bufferSize = (int)bufferCaps.dwBufferBytes;
Init(null, newMode, 100000.0f, channels, frequency);
}
