public override void Release()
{
Marshal.FreeHGlobal(this.pwfx_free);
Marshal.Release(this.pdsb8);
Marshal.Release(this.pds8);
//Marshal.ReleaseComObject(this.dsb8);
//Marshal.ReleaseComObject(this.ds8);
Marshal.FinalReleaseComObject(this.dsb8);
Marshal.FinalReleaseComObject(this.ds8);
this.pwfx_free = IntPtr.Zero;
this.pdsb8 = IntPtr.Zero;
this.pds8 = IntPtr.Zero;
this.dsb8 = null;
this.ds8 = null;
foreach (var item in notifyHwnd_close)
{
Win32API.CloseHandle(item);
}
this.notifyHwnd_close = null;
this.rgdsbpn = null;
base.Release();
}
public int Release()
{
Marshal.FreeHGlobal(this.pwfx_free);
Marshal.Release(this.pdsb8);
Marshal.Release(this.pds8);
//Marshal.ReleaseComObject(this.dsb8);
//Marshal.ReleaseComObject(this.ds8);
Marshal.FinalReleaseComObject(this.dsb8);
Marshal.FinalReleaseComObject(this.ds8);
this.pwfx_free = IntPtr.Zero;
this.pdsb8 = IntPtr.Zero;
this.pds8 = IntPtr.Zero;
this.dsb8 = null;
this.ds8 = null;
foreach (var item in notifyHwnd_close)
{
DSLibNatives.CloseHandle(item);
}
this.notifyHwnd_close = null;
return((int)DSERR.DS_OK);
}
public int Release()
{
if (!this.isInit)
{
return(LibErrors.SUCCESS);
}
this.isInit = false;
Marshal.FreeHGlobal(this.pwfx_free);
Marshal.Release(this.pdsb8);
Marshal.Release(this.pds8);
//Marshal.ReleaseComObject(this.dsb8);
//Marshal.ReleaseComObject(this.ds8);
Marshal.FinalReleaseComObject(this.dsb8);
Marshal.FinalReleaseComObject(this.ds8);
this.pwfx_free = IntPtr.Zero;
this.pdsb8 = IntPtr.Zero;
this.pds8 = IntPtr.Zero;
this.dsb8 = null;
this.ds8 = null;
foreach (var item in notifyHwnd_close)
{
LibNatives.CloseHandle(item);
}
this.notifyHwnd_close = null;
this.rgdsbpn = null;
return(LibErrors.SUCCESS);
}
public override bool Close()
{
int dsErr = this.dsb8.Stop();
if (dsErr != DSERR.DS_OK)
{
logger.ErrorFormat("Stop失败, DSERR = {0}", dsErr);
}
Marshal.FreeHGlobal(this.pwfx_free);
Marshal.Release(this.pdsb8);
Marshal.Release(this.pds8);
//Marshal.ReleaseComObject(this.dsb8);
//Marshal.ReleaseComObject(this.ds8);
Marshal.FinalReleaseComObject(this.dsb8);
Marshal.FinalReleaseComObject(this.ds8);
this.pwfx_free = IntPtr.Zero;
this.pdsb8 = IntPtr.Zero;
this.pds8 = IntPtr.Zero;
this.dsb8 = null;
this.ds8 = null;
return(true);
}
private bool CreateIDirectSound8()
{
uint error = Win32API.DirectSoundCreate8(IntPtr.Zero, out this.pds8, IntPtr.Zero);
if (error != DSERR.DS_OK)
{
logger.ErrorFormat("DirectSoundCreate8失败, DSERR = {0}", error);
return(false);
}
this.ds8 = Marshal.GetObjectForIUnknown(this.pds8) as IDirectSound8;
if ((error = this.ds8.SetCooperativeLevel(Win32API.GetDesktopWindow(), DSSCL.DSSCL_NORMAL)) != DSERR.DS_OK)
{
logger.ErrorFormat("SetCooperativeLevel失败, DSERR = {0}", error);
return(false);
}
return(true);
}
//public int Pause()
//{
// return DSERR.DS_OK;
//}
//public int Restore()
//{
// return DSERR.DS_OK;
//}
#endregion
#region 实例方法
private bool CreateIDirectSound8(IntPtr hwnd, out uint dsErr)
{
dsErr = DSLibNatives.DirectSoundCreate8(IntPtr.Zero, out this.pds8, IntPtr.Zero);
if (dsErr != DSERR.DS_OK)
{
DSLibUtils.PrintLog("DirectSoundCreate8失败, DSERR = {0}", dsErr);
return(false);
}
this.ds8 = Marshal.GetObjectForIUnknown(this.pds8) as IDirectSound8;
dsErr = this.ds8.SetCooperativeLevel(hwnd, (int)DSSCL.DSSCL_NORMAL);
if (dsErr != DSERR.DS_OK)
{
DSLibUtils.PrintLog("SetCooperativeLevel失败, DSERR = {0}", dsErr);
return(false);
}
return(true);
}
DirectSoundCreate8(Guid *lpcGuidDevice, out IDirectSound8 ppDS8, IntPtr pUnkOuter);
public static extern void DirectSoundCreate8(Guid *lpcGuidDevice, out IDirectSound8 ppDS8, IntPtr pUnkOuter);
public static extern void DirectSoundCreate8(Guid* lpcGuidDevice, out IDirectSound8 ppDS8, IntPtr pUnkOuter);
public override bool Open(WaveFormat af)
{
this.windowHandle = GetDesktopWindow();
this.audioFormat = af;
#region 创建DirectSound对象
int dsErr = DirectSoundHelper.DirectSoundCreate8(IntPtr.Zero, out this.pds8, IntPtr.Zero);
if (dsErr != DSERR.DS_OK)
{
logger.ErrorFormat("DirectSoundCreate8失败, DSERR = {0}", dsErr);
return(false);
}
this.ds8 = Marshal.GetObjectForIUnknown(this.pds8) as IDirectSound8;
dsErr = this.ds8.SetCooperativeLevel(this.windowHandle, DSSCL.DSSCL_NORMAL);
if (dsErr != DSERR.DS_OK)
{
logger.ErrorFormat("SetCooperativeLevel失败, DSERR = {0}", dsErr);
return(false);
}
#endregion
#region 创建音频缓冲区对象
this.wfx = new WAVEFORMATEX()
{
nChannels = (short)this.audioFormat.Channel,
nSamplesPerSec = this.audioFormat.SamplesPerSec,
wBitsPerSample = (short)this.audioFormat.BitsPerSample,
nBlockAlign = (short)this.audioFormat.BlockAlign,
nAvgBytesPerSec = this.audioFormat.AvgBytesPerSec,
cbSize = 0,
wFormatTag = DirectSoundHelper.WAVE_FORMAT_PCM
};
this.pwfx_free = Utils.StructureToPtr(this.wfx);
this.dsbd = new DSBUFFERDESC()
{
dwSize = Marshal.SizeOf(typeof(DSBUFFERDESC)),
dwFlags = DSBCAPS.DSBCAPS_CTRLPOSITIONNOTIFY | DSBCAPS.DSBCAPS_GETCURRENTPOSITION2 | DSBCAPS.DSBCAPS_GLOBALFOCUS | DSBCAPS.DSBCAPS_CTRLVOLUME,
lpwfxFormat = this.pwfx_free,
guid3DAlgorithm = new GUID(),
dwBufferBytes = audioFormat.AvgBytesPerSec,
dwReserved = 0
};
this.buffer_size = audioFormat.AvgBytesPerSec;
this.min_free_space = this.wfx.nBlockAlign;
IntPtr pdsb;
dsErr = this.ds8.CreateSoundBuffer(ref this.dsbd, out pdsb, IntPtr.Zero);
if (dsErr != DSERR.DS_OK)
{
logger.ErrorFormat("CreateSoundBuffer失败, DSERR = {0}", dsErr);
return(false);
}
Guid iid_dsb8 = new Guid(IID.IID_IDirectSoundBuffer8);
Marshal.QueryInterface(pdsb, ref iid_dsb8, out this.pdsb8);
Marshal.Release(pdsb);
this.dsb8 = Marshal.GetObjectForIUnknown(this.pdsb8) as IDirectSoundBuffer8;
#endregion
return(true);
}
