4. Directshow VMR-9

Directshow VMR-9

  • X

    Hallo @ all

    ich versuche grade mit DirectShow und der VMR-9 ein avi im windowless mode azuspielen. Ich kanns zwar schon abspielen aber es sieht leider nicht ganz so toll aus, den wenn es angezeigt wird habe ich artefakteim Bild. Mit MPEG klappt es wird alles korrekt angezeigt nur beim avi macht er in der mitte so komische artefakte. Hier mal mein Code:

    VMR9NormalizedRect *r;
IVMRWindowlessControl9 *pWC;
IVMRMixerControl9 *pMix;
IGraphBuilder *pGB;
IBaseFilter *pVmr;
IVMRFilterConfig9 *pConfig;
IMediaControl *pMC;
IMediaSeeking *pMS;

	CoInitialize(NULL);

    // initialize video coordinates with normal values
    r = new VMR9NormalizedRect;
    r->left = 0;
    r->top = 0;
    r->right = 1;
    r->bottom = 1;

    pWC = NULL;
    pMix = NULL;
    pGB = NULL;
    pVmr = NULL;
    pConfig = NULL;
    pMC = NULL;
    pMS = NULL;

	ICaptureGraphBuilder2 *pCaptureGraphBuilder2;
    // create an instance of the Filter Graph Manager
    CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC, 
        IID_IGraphBuilder, (void **)&pGB);
    // create an instance of the VMR9 filter
    CoCreateInstance(CLSID_VideoMixingRenderer9, NULL, CLSCTX_INPROC_SERVER,
        IID_IBaseFilter, (void**)&pVmr);
    // add the VMR9 filter to the Graph Manager
    pGB->AddFilter(pVmr, L"Video");    
    // get a pointer to the IVMRFilterConfig9 interface
    pVmr->QueryInterface(IID_IVMRFilterConfig9, (void**)&pConfig);
    // make sure VMR9 is in windowless mode
    pConfig->SetRenderingMode(VMR9Mode_Windowless);
    // get a pointer to the IVMRWindowlessControl9 interface 
    pVmr->QueryInterface(IID_IVMRWindowlessControl9, (void**)&pWC);
    // explicitly convert System::Drawing::Rectangle type to RECT type

	pWC->SetVideoClippingWindow(m_hWnd);
    // set destination rectangle for the video
    long lWidth, lHeight;
	pWC->GetNativeVideoSize(&lWidth, &lHeight, NULL, NULL); 
	pWC->SetVideoPosition(CRect(0,0,lWidth,lHeight), CRect(10,10,200,200));

    // specify the container window that the video should be clipped to    

    // IVMRMixerControl manipulates video streams
    pVmr->QueryInterface(IID_IVMRMixerControl9, (void**)&pMix);
    // IMediaSeeking seeks to a position in the video stream
    pGB->QueryInterface(IID_IMediaSeeking, (void **)&pMS);
    // IMediaControl controls flow of data through the graph
    pGB->QueryInterface(IID_IMediaControl, (void **)&pMC);

	IBaseFilter *pSource;
	pGB->AddSourceFilter(L"c:\\test.avi", L"Source", &pSource);
	// Create GraphBuilder, CaptureGraphBuilder2
	CoCreateInstance(CLSID_CaptureGraphBuilder2, NULL, CLSCTX_INPROC_SERVER, 
	IID_ICaptureGraphBuilder2, 
	(LPVOID *)&pCaptureGraphBuilder2);

	// Set FilterGraph for CaptureGraphBuilder2
	pCaptureGraphBuilder2->SetFiltergraph(pGB);

	// Build Graph
	pCaptureGraphBuilder2->RenderStream(0, 0, pSource, 0, pVmr);
	// Start playing
//
//	pGB->RenderFile(L"C:\\Movie\\DRS\\DRS.MPG",0);
	pMC->Run();

    jemand von euch ne idee was los ist????

    0
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