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();
}
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();
}