コード例 #1
0
    void DirectShowMovieTexture::loadMovie(
        const Ogre::String& moviePath, bool horizontalMirroring)
    {
        HRESULT hr;
 
        // log it!
        Ogre::LogManager::getSingletonPtr()->logMessage(
            Ogre::String("[DSHOW] Loading movie named '")+
            moviePath+"'.");
 
        // destroy previous movie objects (if any)
        unloadMovie();
 
        // create filter graph and get interfaces
        hr=CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER,
            IID_IGraphBuilder, (void**) &dsdata->pGraph);
        if (FAILED(hr)) throw("[DSHOW] Error in creating graph");
 
        hr=dsdata->pGraph->QueryInterface(IID_IMediaControl, (void**) & dsdata->pControl);
        if (FAILED(hr)) throw("[DSHOW] Error in querying media control");
 
        hr=dsdata->pGraph->QueryInterface(IID_IMediaEvent, (void**) & dsdata->pEvent);
        if (FAILED(hr)) throw("[DSHOW] Error in querying media event");
 
        hr=dsdata->pGraph->QueryInterface(IID_IMediaSeeking, (void**) & dsdata->pSeeking);
        if (FAILED(hr)) throw("[DSHOW] Error in querying seeking interface");
 
        // create sample grabber
        hr=CoCreateInstance(CLSID_SampleGrabber, NULL, CLSCTX_INPROC_SERVER,
            IID_IBaseFilter, (void**)&dsdata->pGrabberF);
        if (FAILED(hr)) throw("[DSHOW] Error in creating sample grabber");
 
        // add sample grabber to the graph
        hr=dsdata->pGraph->AddFilter(dsdata->pGrabberF, L"Sample Grabber");
        if (FAILED(hr)) throw("[DSHOW] Error in adding sample grabber to the graph");
 
        // get sample grabber object
        dsdata->pGrabberF->QueryInterface(IID_ISampleGrabber,
            (void**)&dsdata->pGrabber);
 
        // set sample grabber media type
        AM_MEDIA_TYPE mt;
        ZeroMemory(&mt, sizeof(AM_MEDIA_TYPE));
        mt.majortype = MEDIATYPE_Video;
        mt.subtype = MEDIASUBTYPE_RGB24;
        mt.formattype = FORMAT_VideoInfo;
        hr=dsdata->pGrabber->SetMediaType(&mt);
        if (FAILED(hr)) throw("[DSHOW] Error in setting sample grabber media type");
 
                //--------------- Seregvan's modification 
        IBaseFilter* srcFilter; 
        WCHAR* filepath = util_convertCStringToWString(moviePath.c_str());    
        hr = dsdata->pGraph->AddSourceFilter(filepath, L"Source", &srcFilter); 
        if(FAILED(hr)) throw ("[DSHOW] Unsupported media type!"); 
 
        // Connect the src and grabber 
        hr = ConnectFilters(dsdata->pGraph, srcFilter, dsdata->pGrabberF); 
        if(FAILED(hr)) throw ("[DSHOW] Unsupported media type!"); 
 
        IBaseFilter * render;
        hr = CoCreateInstance(CLSID_NullRenderer, NULL, CLSCTX_INPROC_SERVER, IID_IBaseFilter, (void**)&render);
        if(FAILED(hr)) throw ("[DSHOW] Unsupported media type!"); 
 
        dsdata->pGraph->AddFilter(render, L"Render");
 
        hr = ConnectFilters(dsdata->pGraph, dsdata->pGrabberF, render); 
        if(FAILED(hr)) throw ("[DSHOW] Can't create render!"); 
 
        //--------------- End of modification
 
        // open the file!
        filepath=util_convertCStringToWString(moviePath.c_str());
        hr=dsdata->pGraph->RenderFile(filepath, NULL);
        if (FAILED(hr)) throw("[DSHOW] Error opening video file!");
 
        // disable auto show
        // (wouldn't be needed if we used the null renderer)
        hr=dsdata->pGraph->QueryInterface(IID_IVideoWindow, (void**) & dsdata->pWindow);
        if (FAILED(hr)) throw("[DSHOW] Error getting video window interface");
        dsdata->pWindow->put_AutoShow(OAFALSE);
 
        // get video information
        AM_MEDIA_TYPE mtt;
        hr=dsdata->pGrabber->GetConnectedMediaType(&mtt);
        if (FAILED(hr)) throw("[DSHOW] Error getting connected media type info");
 
        VIDEOINFOHEADER *vih = (VIDEOINFOHEADER*) mtt.pbFormat;
        dsdata->videoWidth=vih->bmiHeader.biWidth;
        dsdata->videoHeight=vih->bmiHeader.biHeight;
        // microsoft's help version of free media type
        if (mtt.cbFormat != 0)
        {
            CoTaskMemFree((PVOID)mtt.pbFormat);
            mtt.cbFormat = 0;
            mtt.pbFormat = NULL;
        }
        if (mtt.pUnk != NULL)
        {
            mtt.pUnk->Release();
            mtt.pUnk = NULL;
        }
 
        // log it
        Ogre::LogManager::getSingletonPtr()->logMessage(
            Ogre::String("[DSHOW] -> This movie has dimensions: ")+
            Ogre::StringConverter::toString(dsdata->videoWidth)+"x"+
            Ogre::StringConverter::toString(dsdata->videoHeight)+".");
 
        // set sampling options
        dsdata->pGrabber->SetOneShot(FALSE);
        dsdata->pGrabber->SetBufferSamples(TRUE);
 
        // set some basic data
        mHorizontalMirroring=horizontalMirroring;
 
        // clean the texture, so that it's ready for rendering this video
        cleanTextureContents();
    }
コード例 #2
0
	void DirectShowMovieTexture::loadMovie(
		const Ogre::String& moviePath, bool horizontalMirroring)
	{
		HRESULT hr;

		// log it!
		Ogre::LogManager::getSingletonPtr()->logMessage(
			Ogre::String("[DSHOW] Loading movie named '")+
			moviePath+"'.");

		// destroy previous movie objects (if any)
		unloadMovie();

		// create filter graph and get interfaces
		hr=CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER,
			IID_IGraphBuilder, (void**) &dsdata->pGraph);
		if (FAILED(hr)) throw("[DSHOW] Error in creating graph");

		hr=dsdata->pGraph->QueryInterface(IID_IMediaControl, (void**) & dsdata->pControl);
		if (FAILED(hr)) throw("[DSHOW] Error in querying media control");

		hr=dsdata->pGraph->QueryInterface(IID_IMediaEvent, (void**) & dsdata->pEvent);
		if (FAILED(hr)) throw("[DSHOW] Error in querying media event");

		hr=dsdata->pGraph->QueryInterface(IID_IMediaSeeking, (void**) & dsdata->pSeeking);
		if (FAILED(hr)) throw("[DSHOW] Error in querying seeking interface");

		// create sample grabber
		hr=CoCreateInstance(CLSID_SampleGrabber, NULL, CLSCTX_INPROC_SERVER,
			IID_IBaseFilter, (void**)&dsdata->pGrabberF);
		if (FAILED(hr)) throw("[DSHOW] Error in creating sample grabber");

		// add sample grabber to the graph
		hr=dsdata->pGraph->AddFilter(dsdata->pGrabberF, L"Sample Grabber");
		if (FAILED(hr)) throw("[DSHOW] Error in adding sample grabber to the graph");

		// get sample grabber object
		dsdata->pGrabberF->QueryInterface(IID_ISampleGrabber,
			(void**)&dsdata->pGrabber);

		// set sample grabber media type
		AM_MEDIA_TYPE mt;
		ZeroMemory(&mt, sizeof(AM_MEDIA_TYPE));
		mt.majortype = MEDIATYPE_Video;
		mt.subtype = MEDIASUBTYPE_RGB24;
		mt.formattype = FORMAT_VideoInfo;
		hr=dsdata->pGrabber->SetMediaType(&mt);
		if (FAILED(hr)) throw("[DSHOW] Error in setting sample grabber media type");

		// open the file!
		WCHAR* filepath=util_convertCStringToWString(moviePath.c_str());
		hr=dsdata->pGraph->RenderFile(L"C:\Users\Harry\Desktop\Ogre_Framework\bin\welcome.avi", NULL);
		if (FAILED(hr)) throw("[DSHOW] Error opening video file!");

		// disable auto show
		// (wouldn't be needed if we used the null renderer)
		hr=dsdata->pGraph->QueryInterface(IID_IVideoWindow, (void**) & dsdata->pWindow);
		if (FAILED(hr)) throw("[DSHOW] Error getting video window interface");
		dsdata->pWindow->put_AutoShow(OAFALSE);

		// get video information
		AM_MEDIA_TYPE mtt;
		hr=dsdata->pGrabber->GetConnectedMediaType(&mtt);

		if (FAILED(hr)) throw("[DSHOW] Error getting connected media type info");

		VIDEOINFOHEADER *vih = (VIDEOINFOHEADER*) mtt.pbFormat;
		dsdata->videoWidth=vih->bmiHeader.biWidth;
		dsdata->videoHeight=vih->bmiHeader.biHeight;


		ResetSize(dsdata->videoWidth,dsdata->videoHeight);
		//纹理的创建现在修改到了这里,原来在构造函数中
		//放在这里可以根据视频的大小来生成纹理的大小
		//这样可以让视频完全平铺到面片上
		mTexture=Ogre::TextureManager::getSingleton().createManual(
			"DirectShowManualTexture",// name
			Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
			Ogre::TEX_TYPE_2D,// texture type
			mTexWidth,
			mTexHeight,
			0,// number of mipmaps
			Ogre::PF_BYTE_BGRA,// pixel format
			Ogre::TU_DYNAMIC_WRITE_ONLY_DISCARDABLE// usage
			);

		// microsoft's help version of free media type
		if (mtt.cbFormat != 0)
		{
			CoTaskMemFree((PVOID)mtt.pbFormat);
			mtt.cbFormat = 0;
			mtt.pbFormat = NULL;
		}
		if (mtt.pUnk != NULL)
		{
			mtt.pUnk->Release();
			mtt.pUnk = NULL;
		}

		// log it
		Ogre::LogManager::getSingletonPtr()->logMessage(
			Ogre::String("[DSHOW] -> This movie has dimensions: ")+
			Ogre::StringConverter::toString(dsdata->videoWidth)+"x"+
			Ogre::StringConverter::toString(dsdata->videoHeight)+".");


		// set sampling options
		dsdata->pGrabber->SetOneShot(FALSE);
		dsdata->pGrabber->SetBufferSamples(TRUE);

		// set some basic data
		mHorizontalMirroring=horizontalMirroring;

		// clean the texture, so that it's ready for rendering this video
		cleanTextureContents();
	}