public void CanPlayBuffers() { using (var dsound = CreateDirectSound8()) { dsound.SetCooperativeLevel(DSUtils.GetDesktopWindow(), DSCooperativeLevelType.DSSCL_NORMAL); WaveFormat waveFormat = new WaveFormat(44100, 16, 2); using (var primaryBuffer = new DirectSoundPrimaryBuffer(dsound)) using (var secondaryBuffer = new DirectSoundSecondaryBuffer(dsound, waveFormat, (int)waveFormat.MillisecondsToBytes(10000))) { primaryBuffer.Play(DSBPlayFlags.DSBPLAY_LOOPING); var caps = secondaryBuffer.BufferCaps; var data = GenerateData(caps.dwBufferBytes / 2, waveFormat); if (secondaryBuffer.Write(data, 0, data.Length)) { secondaryBuffer.Play(DSBPlayFlags.DSBPLAY_LOOPING); } else { Assert.Fail("Could not write data."); } Thread.Sleep(1); } } }
private void InitializeInternal() { //Use Desktophandle as default handle IntPtr handle = DSUtils.GetDesktopWindow(); IntPtr pdsound; DirectSoundException.Try(NativeMethods.DirectSoundCreate8(ref _device, out pdsound, IntPtr.Zero), "DSInterop", "DirectSoundCreate8"); _directSound = new DirectSound8(pdsound); _directSound.SetCooperativeLevel(handle, DSCooperativeLevelType.DSSCL_NORMAL); //use normal as default if (!_directSound.SupportsFormat(_source.WaveFormat)) { if (_source.WaveFormat.WaveFormatTag == AudioEncoding.IeeeFloat) _source = _source.ToSampleSource().ToWaveSource(16); if (_directSound.SupportsFormat(new WaveFormat(_source.WaveFormat.SampleRate, 16, _source.WaveFormat.Channels, _source.WaveFormat.WaveFormatTag))) _source = _source.ToSampleSource().ToWaveSource(16); else if (_directSound.SupportsFormat(new WaveFormat(_source.WaveFormat.SampleRate, 8, _source.WaveFormat.Channels, _source.WaveFormat.WaveFormatTag))) _source = _source.ToSampleSource().ToWaveSource(8); else throw new InvalidOperationException("Invalid WaveFormat. WaveFormat specified by parameter {_source} is not supported by this DirectSound-Device."); if (!_directSound.SupportsFormat(_source.WaveFormat)) throw new InvalidOperationException("Invalid WaveFormat. WaveFormat specified by parameter {_source} is not supported by this DirectSound-Device."); } WaveFormat waveFormat = _source.WaveFormat; int bufferSize = (int)waveFormat.MillisecondsToBytes(_latency); _primaryBuffer = new DirectSoundPrimaryBuffer(_directSound); _secondaryBuffer = new DirectSoundSecondaryBuffer(_directSound, waveFormat, bufferSize); }
private void CleanupRessources() { if (_directSoundNotify != null) { _directSoundNotify.Dispose(); _directSoundNotify = null; } if (_secondaryBuffer != null) { _secondaryBuffer.Stop(); _secondaryBuffer.Dispose(); _secondaryBuffer = null; } if (_primaryBuffer != null) { _primaryBuffer.Stop(); _primaryBuffer.Dispose(); _primaryBuffer = null; } if (_directSound != null) { _directSound.Dispose(); _directSound = null; } //_isInitialized = false; }