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C++ IPin::QueryDirection方法代码示例

本文整理汇总了C++中IPin::QueryDirection方法的典型用法代码示例。如果您正苦于以下问题：C++ IPin::QueryDirection方法的具体用法？C++ IPin::QueryDirection怎么用？C++ IPin::QueryDirection使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类IPin的用法示例。


在下文中一共展示了IPin::QueryDirection方法的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: FindPin

void FindPin(IBaseFilter* baseFilter, PIN_DIRECTION direction, int pinNumber, IPin** destPin) 
{
    IEnumPins *enumPins = 0;

    *destPin = NULL;

    if (SUCCEEDED(baseFilter->EnumPins(&enumPins))) {
        ULONG numFound;
        IPin* tmpPin;

        while (SUCCEEDED(enumPins->Next(1, &tmpPin, &numFound))) {
            PIN_DIRECTION pinDirection;

            tmpPin->QueryDirection(&pinDirection);
            if (pinDirection == direction) {
                if (pinNumber == 0) {
                    // Return the pin's interface
                    *destPin = tmpPin;
                    break;
                }
                pinNumber--;
            }
            tmpPin->Release();
        }
    }

	if (enumPins)
	{
		enumPins->Release();
	}
}
开发者ID:gaoyakun，项目名称:atom3d，代码行数:31，代码来源:dshow_movieplayer.cpp

示例2: while

// Function name	: CVMR9Graph::GetPin
// Description	    : return the desired pin
// Return type		: IPin* 
// Argument         : IBaseFilter *pFilter
// Argument         : PIN_DIRECTION PinDir
IPin* CVMR9Graph::GetPin(IBaseFilter *pFilter, PIN_DIRECTION PinDir)
{
    BOOL       bFound = FALSE;
    IEnumPins  *pEnum;
    IPin       *pPin;

    pFilter->EnumPins(&pEnum);
    while(pEnum->Next(1, &pPin, 0) == S_OK) {
        PIN_DIRECTION PinDirThis;
        pPin->QueryDirection(&PinDirThis);
        if (PinDir == PinDirThis)
        {
            IPin *pTmp = 0;
            if (SUCCEEDED(pPin->ConnectedTo(&pTmp)))  // Already connected, not the pin we want.
            {
                pTmp->Release();
            }
            else  // Unconnected, this is the pin we want.
            {
              bFound = true;
              break;
            }
        }
        pPin->Release();
    }
    pEnum->Release();

    return (bFound ? pPin : 0);
}
开发者ID:smarinel，项目名称:ags-web，代码行数:34，代码来源:acwavi3d.cpp

示例3: FindPinByDirection

IPin* FindPinByDirection(IBaseFilter* pFilter, PIN_DIRECTION Criteria)
{
    IPin* pPin = 0;
    IEnumPins* pEnum = 0;
    ULONG ul = 0;
    PIN_DIRECTION TempDir;

    pFilter->EnumPins(&pEnum);
    if(!pEnum) return 0;

    while(1)
    {
        pEnum->Next(1, &pPin, &ul);
        if(ul != 1)
        {
            pPin = 0;
            break;
        }

        // Examine this pin.
        pPin->QueryDirection(&TempDir);
        if(TempDir == Criteria)
        {
            break;
        }

        pPin->Release();
    }

    SAFE_RELEASE(pEnum);

    return pPin;
}
开发者ID:thenfour，项目名称:LoveLine，代码行数:33，代码来源:AudioPlayer.cpp

示例4: GetUnconnectedPin

HRESULT GetUnconnectedPin(IBaseFilter *pFilter, PIN_DIRECTION PinDir, IPin **ppPin)
{
    *ppPin = 0;
    IEnumPins *pEnum = 0;
    IPin *pPin = 0;
    HRESULT hr = pFilter->EnumPins(&pEnum);
    if (FAILED(hr))
    {
        return hr;
    }
    while (pEnum->Next(1, &pPin, NULL) == S_OK)
    {
        PIN_DIRECTION ThisPinDir;
        pPin->QueryDirection(&ThisPinDir);
        if (ThisPinDir == PinDir)
        {
            IPin *pTmp = 0;
            hr = pPin->ConnectedTo(&pTmp);
            if (SUCCEEDED(hr))
            {
                pTmp->Release();
            }
            else 
            {
                pEnum->Release();
                *ppPin = pPin;
                return S_OK;
            }
        }
        pPin->Release();
    }
    pEnum->Release();

    return E_FAIL;
}
开发者ID:d-zenju，项目名称:aws，代码行数:35，代码来源:f_ds_vfile.cpp

示例5: GetPin

HRESULT CDirSoundSource::GetPin( IBaseFilter * pFilter, PIN_DIRECTION dirrequired, int iNum, CComPtr<IPin> &pin)
{
    CComPtr< IEnumPins > pEnum;
    pin = NULL;
    HRESULT hr = pFilter->EnumPins(&pEnum);
    if(FAILED(hr)) 
        return hr;

    ULONG ulFound;
    IPin *pPin;
    hr = E_FAIL;

    while(S_OK == pEnum->Next(1, &pPin, &ulFound))
    {
        PIN_DIRECTION pindir = (PIN_DIRECTION)3;
        pPin->QueryDirection(&pindir);
        if(pindir == dirrequired)
        {
            if(iNum == 0)
            {
                pin = pPin;
                // Found requested pin, so clear error
                hr = S_OK;
                break;
            }
            iNum--;
        } 

        pPin->Release();
    } 

    return hr;
}
开发者ID:adanalig，项目名称:Project2，代码行数:33，代码来源:DirSoundSource.cpp

示例6: GetUnconnectedPin

// helper functions
HRESULT GetUnconnectedPin(IBaseFilter *pFilter,PIN_DIRECTION PinDir, IPin **ppPin)
{
	*ppPin = 0;
	IEnumPins *pEnum = 0;
	IPin *pPin = 0;
	HRESULT hr = pFilter->EnumPins(&pEnum);
	if (FAILED(hr))
	{
		return hr;
	}
	while (pEnum->Next(1, &pPin, NULL) == S_OK)
	{
		PIN_DIRECTION ThisPinDir;
		pPin->QueryDirection(&ThisPinDir);
		if (ThisPinDir == PinDir)
		{
			IPin *pTmp = 0;
			hr = pPin->ConnectedTo(&pTmp);
			if (SUCCEEDED(hr))  // Already connected, not the pin we want.
			{
				pTmp->Release();
			}
			else  // Unconnected, this is the pin we want.
			{
				pEnum->Release();
				*ppPin = pPin;
				return S_OK;
			}
		}
		pPin->Release();
	}
	pEnum->Release();
	// Did not find a matching pin.
	return E_FAIL;
}
开发者ID:my12doom，项目名称:personalProjects，代码行数:36，代码来源:my12doom's+3dv+demuxerDlg.cpp

示例7: GetPin

IPin* EMTestVideoOut::GetPin(IBaseFilter *pFilter, PIN_DIRECTION PinDir)
{
    BOOL       bFound = FALSE;
    IEnumPins  *pEnum;
    IPin       *pPin;
	bool		FoundIt = false;
    pFilter->EnumPins(&pEnum);
    while(pEnum->Next(1, &pPin, 0) == S_OK)
    {
        PIN_DIRECTION PinDirThis;
        pPin->QueryDirection(&PinDirThis);
        if (bFound = (PinDir == PinDirThis))
		{
//			MessageBox(NULL, "Found Matching PIN_DIRECTION", "Looking for a PIN", MB_OK);
			FoundIt = true;
            break;
		}
        pPin->Release();
//			MessageBox(NULL, "Found A Non Matching PIN_DIRECTION", "Looking for a PIN", MB_OK);
    }
//	if(!FoundIt)
//			MessageBox(NULL, "DIDN'T FIND A MATCHING PIN", "WARNING WARNING!!!", MB_OK);
    pEnum->Release();
    return (bFound ? pPin : 0);  
}
开发者ID:Barrett17，项目名称:libvodoo，代码行数:25，代码来源:EMTestVideoOut.cpp

示例8: GetOutPin

IPin * GetOutPin( IBaseFilter * pFilter, int PinNum )
{
    IEnumPins * pEnum = 0;
    HRESULT hr = pFilter->EnumPins( &pEnum );
    pEnum->Reset( );
    ULONG Fetched;
    do
    {
        Fetched = 0;
        IPin * pPin = 0;
        pEnum->Next( 1, &pPin, &Fetched );
        if( Fetched )
        {
            PIN_DIRECTION pd;
            pPin->QueryDirection( &pd);
            pPin->Release( );
            if( pd == PINDIR_OUTPUT )
            {
                if( PinNum == 0 )
                {
                    pEnum->Release( );
                    return pPin;
                }
                PinNum--;
            }
        }
    }
    while( Fetched );
    pEnum->Release( );
    return NULL;
}
开发者ID:RaymondLiao，项目名称:elektronika，代码行数:31，代码来源:dxsend.cpp

示例9: qWarning

IBaseFilter *DirectShowPlayerService::getConnected(
        IBaseFilter *filter, PIN_DIRECTION direction) const
{
    IBaseFilter *connected = 0;

    IEnumPins *pins = 0;

    if (SUCCEEDED(filter->EnumPins(&pins))) {
        for (IPin *pin = 0; pins->Next(1, &pin, 0) == S_OK; pin->Release()) {
            PIN_DIRECTION dir;
            if (SUCCEEDED(pin->QueryDirection(&dir)) && dir == direction) {
                IPin *peer = 0;
                if (SUCCEEDED(pin->ConnectedTo(&peer))) {
                    PIN_INFO info;

                    if (SUCCEEDED(peer->QueryPinInfo(&info))) {
                        if (connected) {
                            qWarning("DirectShowPlayerService::getConnected: "
                                "Multiple connected filters");
                            connected->Release();
                        }
                        connected = info.pFilter;
                    }
                    peer->Release();
                }
            }
        }
        pins->Release();
    }
    return connected;
}
开发者ID:KDE，项目名称:android-qt-mobility，代码行数:31，代码来源:directshowplayerservice.cpp

示例10: GetPinCountForOneType

	HRESULT GetPinCountForOneType(IUnknown* pUnk, PIN_DIRECTION direction, LPDWORD pPinCount)
	{
		(*pPinCount) = 0;
		IBaseFilter* pBaseFilter = NULL;
		HRESULT hr = pUnk->QueryInterface(IID_IBaseFilter, (VOID**)&pBaseFilter);
		if (SUCCEEDED(hr))
		{
			IEnumPins* pEnumPins = NULL;
			hr = pBaseFilter->EnumPins(&pEnumPins);
			if (SUCCEEDED(hr))
			{
				pEnumPins->Reset();
				if (SUCCEEDED(hr))
				{
					IPin* pPin = NULL;
					BOOL bFound = FALSE;
					DWORD dwFetched = 0;
					while (((pEnumPins->Next(1, &pPin, &dwFetched)) == S_OK) && !bFound)
					{
						PIN_DIRECTION fetchedDir;
						hr = pPin->QueryDirection(&fetchedDir);
						if (SUCCEEDED(hr) && (fetchedDir == direction))
						{
							(*pPinCount)++;
						}
						pPin->Release();
					}
				}
				pEnumPins->Release();
			}
			pBaseFilter->Release();
		}
		return hr;
	}
开发者ID:wyrover，项目名称:HiVideo2，代码行数:34，代码来源:DShowUtils.cpp

示例11: GetAMConfigForSinglePin

	HRESULT GetAMConfigForSinglePin(IUnknown* pUnk, PIN_DIRECTION direction, IAMStreamConfig** ppConfig)
	{
		IBaseFilter* pBaseFilter = NULL;
		HRESULT hr = pUnk->QueryInterface(IID_IBaseFilter, (void**)&pBaseFilter);
		if (SUCCEEDED(hr))
		{
			IEnumPins* pEnumPins = NULL;
			hr = pBaseFilter->EnumPins(&pEnumPins);
			if (SUCCEEDED(hr))
			{
				pEnumPins->Reset();
				if (SUCCEEDED(hr))
				{
					IPin* pPin = NULL;
					BOOL bFound = FALSE;
					while (((pEnumPins->Next(1, &pPin, NULL)) == S_OK) && !bFound)
					{
						PIN_DIRECTION fetchedDir;
						hr = pPin->QueryDirection(&fetchedDir);
						if (SUCCEEDED(hr) && (fetchedDir == direction))
						{
							hr = pPin->QueryInterface(IID_IAMStreamConfig, (void**)ppConfig);
							bFound = SUCCEEDED(hr);
						}
						pPin->Release();
					}
				}
				pEnumPins->Release();
			}
			pBaseFilter->Release();
		}
		return hr;
	}
开发者ID:wyrover，项目名称:HiVideo2，代码行数:33，代码来源:DShowUtils.cpp

示例12: while

gboolean
gst_dshow_get_pin_from_filter (IBaseFilter * filter, PIN_DIRECTION pindir,
    IPin ** pin)
{
  gboolean ret = FALSE;
  IEnumPins *enumpins = NULL;
  IPin *pintmp = NULL;
  HRESULT hres;
  *pin = NULL;

  hres = filter->EnumPins (&enumpins);
  if (FAILED (hres)) {
    return ret;
  }

  while (enumpins->Next (1, &pintmp, NULL) == S_OK) {
    PIN_DIRECTION pindirtmp;
    hres = pintmp->QueryDirection (&pindirtmp);
    if (hres == S_OK && pindir == pindirtmp) {
      *pin = pintmp;
      ret = TRUE;
      break;
    }
    pintmp->Release ();
  }
  enumpins->Release ();

  return ret;
}
开发者ID:0p1pp1，项目名称:gst-plugins-bad，代码行数:29，代码来源:gstdshow.cpp

示例13: get_pin

	HRESULT win_webcam_utils::get_pin(IBaseFilter * filter, PIN_DIRECTION dirrequired, int num, IPin **pin)
	{
		CComPtr<IEnumPins> enum_pin;
		*pin = nullptr;

		HRESULT res = filter->EnumPins(&enum_pin);
		if (S_OK != res)
		{
			return res;
		}

		ULONG found;
		IPin *pPin;
		res = E_FAIL;

		while (S_OK == enum_pin->Next(1, &pPin, &found))
		{
			PIN_DIRECTION pindir = (PIN_DIRECTION)3;

			pPin->QueryDirection(&pindir);
			if (pindir == dirrequired)
			{
				if (num == 0)
				{
					*pin = pPin;  // Return the pin's interface
					res = S_OK;      // Found requested pin, so clear error
					break;
				}
				num--;
			}
			pPin->Release();
		}
		return res;
	}
开发者ID:robcio83，项目名称:libwebcam，代码行数:34，代码来源:win_webcam_utils.cpp

示例14: GetPin

//-----------------------------------------------------------------------------
// GetPin
// Find the pin of the specified format type on the given filter
// This method leaves an outstanding reference on the pin if successful
HRESULT CDSUtils::GetPin(IBaseFilter* pFilter, const GUID* pFormat, PIN_DIRECTION PinDir, IPin** ppPin)
{
	HRESULT hr = S_OK;

	if (pFilter && pFormat && ppPin)
	{
		CComPtr<IEnumPins> pIEnumPins = NULL;
		hr = pFilter->EnumPins(&pIEnumPins);
		if (SUCCEEDED(hr))
		{
			// find the pin with the specified format
			IPin* pIPin = NULL;
			while (S_OK == pIEnumPins->Next(1, &pIPin, NULL))
			{
				// match the pin direction
				PIN_DIRECTION pinDir;
				pIPin->QueryDirection(&pinDir);
				if (pinDir == PinDir)
				{
					// match pin direction check the first media type returned from the upstream pin
					CComPtr<IEnumMediaTypes> pIEnumMT = NULL;
					hr = pIPin->EnumMediaTypes(&pIEnumMT);
					if (SUCCEEDED(hr))
					{
						AM_MEDIA_TYPE* pmt = NULL;
						hr = pIEnumMT->Next(1, &pmt, NULL);
						if (S_OK == hr)
						{
							if (pmt->majortype == *pFormat)
							{
								// found the pin with the specified format
								*ppPin = pIPin;
								DeleteMediaType(pmt);
								break;
							}
							else
							{
								DeleteMediaType(pmt);
							}
						}
					}
				}
				SAFE_RELEASE(pIPin);
			}

			if (NULL == *ppPin)
			{
				// failed to find the named pin
				hr = E_FAIL;
			}
		}
	}
	else
	{
		hr = E_INVALIDARG;
	}

	return hr;
}
开发者ID:MattHung，项目名称:sage-graphics，代码行数:63，代码来源:Utils.cpp

示例15: GetNextFilter

HRESULT CDShowUtility::GetNextFilter(IBaseFilter *pFilter, PIN_DIRECTION Dir, IBaseFilter **ppNext)
{
    if (!pFilter || !ppNext)
    {
        return E_POINTER;
    }

    IEnumPins *pEnum = NULL;
    IPin *pPin = 0;
    HRESULT hr = pFilter->EnumPins(&pEnum);
    if (FAILED(hr))
    {
        return hr;
    }

    while (S_OK == pEnum->Next(1, &pPin, 0))
    {
        // see if this pin matches the specified direction
        PIN_DIRECTION ThisPinDir;
        hr = pPin->QueryDirection(&ThisPinDir);
        if (FAILED(hr))
        {
            // something strange happened 
            hr = E_UNEXPECTED;
            pPin->Release();
            break;
        }

        if (ThisPinDir == Dir)
        {
            // check if the pin is connected to another pin
            IPin *pPinNext = NULL;

            if (SUCCEEDED(hr))
            {
                // get the filter that owns that pin
                PIN_INFO PinInfo;
                hr = pPinNext->QueryPinInfo(&PinInfo);
                pPinNext->Release();
                pEnum->Release();
                if (FAILED(hr) || PinInfo.pFilter == NULL)
                {
                    // Something strange happened 
                    return E_UNEXPECTED;
                }

                // This is the filter we're looking for 
                *ppNext = PinInfo.pFilter;
                return S_OK;
            }
        }

        pPin->Release();
    }
    pEnum->Release();

    return hr;
}
开发者ID:moon-sky，项目名称:fishjam-template-library，代码行数:58，代码来源:DShowUtility.cpp


注：本文中的IPin::QueryDirection方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。