C++ (Cpp) IsVideoPin Examples

Example #1

File: SampleCGB.cpp Project: bai-lu-sz/KineCT

HRESULT 
ISampleCaptureGraphBuilder::FindVideoPin( 
                                IBaseFilter *pFilter, 
                                IPin **ppPin  )
{
    if( !pFilter )
    {
        return E_POINTER;
    }

    SmartPtr<IEnumPins> pEnumPins;
    HRESULT hr = pFilter->EnumPins( &pEnumPins );
    if( FAILED( hr ) )
    {
        return hr;
    }

    SmartPtr<IPin>   pTempPin;
    ULONG           fetched;
    hr = pEnumPins->Reset( );

    while( pTempPin.Release(), S_OK == pEnumPins->Next( 1, &pTempPin, &fetched ) )
    {
        if( IsVideoPin( pTempPin ) )
        {
            (*ppPin) = pTempPin.Detach();
            return S_OK;
        }
    }
    return E_FAIL;
}

Example #2

File: SampleCGB.cpp Project: bai-lu-sz/KineCT

//
//  search the encoder that has this special medium
//  video == TRUE -- look for a video pin
//  video == FALSE -- look for a audio pin  
//
HRESULT ISampleCaptureGraphBuilder::FindPin( 
            IBaseFilter *pFilter, 
            const REGPINMEDIUM& regPinMedium, 
            PIN_DIRECTION direction, 
            BOOL video,             
            IPin **ppPin)
{
    if( !pFilter )
    {
        return E_POINTER;
    }

    SmartPtr<IEnumPins> pEnumPins;
    HRESULT hr = pFilter->EnumPins( &pEnumPins );
    if( FAILED( hr ) )
    {
        return hr;
    }
    
    SmartPtr<IPin>   pTempPin;
    ULONG           fetched;
    REGPINMEDIUM    regPinMediumTemp;
    PIN_DIRECTION   dir;

    hr = pEnumPins->Reset( );
    while( pTempPin.Release(), S_OK == pEnumPins->Next( 1, &pTempPin, &fetched ) )
    {
        ASSERT( pTempPin );

        hr = pTempPin->QueryDirection( &dir );
        if( FAILED( hr ) || dir != direction )
        {
            continue;
        }

        hr = GetMedium( pTempPin, regPinMediumTemp );
        if( FAILED( hr ) )
        {
            continue;
        }

        if( !IsVideoPin( pTempPin ) )
        {
            continue;
        }

        if( ::IsEqualGUID( regPinMediumTemp.clsMedium, regPinMedium.clsMedium  ) &&
            regPinMediumTemp.dw1 == regPinMedium.dw1 )
        {
            (*ppPin) = pTempPin.Detach();
            return S_OK;
        }
    }

    return E_FAIL;
}

Example #3

File: SampleCGB.cpp Project: Forlearngit/VisitorManager

HRESULT CSampleCGB::FindVideoPin( IBaseFilter *pFilter, IPin **ppPin )
{
	if(!pFilter)return E_POINTER;

	SmartPtr<IEnumPins> pEnumPins;
	HRESULT hr = pFilter->EnumPins(&pEnumPins);
	if(FAILED(hr))return hr;

	SmartPtr<IPin> pTempPin;
	ULONG cFetched;
	hr = pEnumPins->Reset();
	if(FAILED(hr))return hr;

	while(pTempPin.Release(),S_OK == pEnumPins->Next(1,&pTempPin,&cFetched))
	{
		if(IsVideoPin(pTempPin))
		{
			*ppPin = pTempPin.Detach();
			return S_OK;
		}
	}
	return E_FAIL;
}