void play_movie( HWND hwnd )
{
IGraphBuilder *pGraph;
IMediaControl *pMediaControl;
IMediaEvent *pEvent;
IBasicVideo *pBasic;
IVideoWindow *pVidWin = NULL;
RECT grc;
long width, height;
CoInitialize(NULL);
// Create the filter graph manager and query for interfaces.
CoCreateInstance(
CLSID_FilterGraph,
NULL,
CLSCTX_INPROC_SERVER,
IID_IGraphBuilder,
(void **)&pGraph);
pGraph->QueryInterface(IID_IVideoWindow, (void **)&pVidWin);
pGraph->QueryInterface(IID_IMediaControl, (void **)&pMediaControl);
pGraph->QueryInterface(IID_IMediaEvent, (void **)&pEvent);
pGraph->QueryInterface(IID_IBasicVideo, (void**)&pBasic );
// Build the graph. IMPORTANT: Change string to a file on your system.
pGraph->RenderFile(L"e:\\alpha\\running.avi", NULL);
pBasic->GetVideoSize( &width, &height );
printf( "video frames are %d x %d\n", width, height );
pVidWin->put_Owner((OAHWND)hwnd);
pVidWin->put_WindowStyle(WS_CHILD | WS_CLIPSIBLINGS);
GetClientRect( hwnd, &grc );
pVidWin->SetWindowPosition(10, 10, width, height);
printf( "window is %d x %d\n", grc.right, grc.bottom );
// Run the graph.
pMediaControl->Run();
// Wait for completion.
long evCode;
pEvent->WaitForCompletion(INFINITE, &evCode);
pVidWin->put_Visible(OAFALSE);
pVidWin->put_Owner(NULL);
// Clean up.
pBasic->Release();
pVidWin->Release();
pMediaControl->Release();
pEvent->Release();
pGraph->Release();
CoUninitialize();
}
void Video::play( char *fileName, DWORD )
{
WCHAR wPath[100];
HRESULT hr;
IMediaControl *pMC;
if(!init_success)
return;
MultiByteToWideChar( CP_ACP, 0, fileName, -1, wPath, 100 );
if( (hr = pGraph->RenderFile(wPath, NULL)) == 0)
{
// use full screen video interface
// try to change display mode
IVideoWindow *iVideoWindow = NULL;
if( (hr = pGraph->QueryInterface(IID_IVideoWindow, (void **) &iVideoWindow)) == 0)
{
#ifdef CREATE_DUMMY_WINDOW
if(hwnd)
{
HRESULT hr2 = iVideoWindow->put_MessageDrain((OAHWND) hwnd);
hr2 = 0;
}
#endif
#ifdef FULL_SCREEN_VIDEO
IFilter *iFilter;
if( pGraph->FindFilterByName(L"Video Renderer", &iFilter) == 0)
{
IBasicVideo *iBasicVideo;
if( iFilter->QueryInterface(IID_IBasicVideo, (void **)&iBasicVideo) == 0)
{
IFullScreenVideo *iFullScreenVideo;
IDirectDrawVideo *iDirectDrawVideo;
if( iFilter->QueryInterface(IID_IFullScreenVideo, (void **)&iFullScreenVideo) == 0)
{
iFullScreenVideo->Release();
}
else if( iFilter->QueryInterface(IID_IDirectDrawVideo, (void **)&iDirectDrawVideo) == 0)
{
HRESULT hr2;
hr2 = iDirectDrawVideo->UseWhenFullScreen(OATRUE);
iDirectDrawVideo->Release();
}
iBasicVideo->Release();
}
iFilter->Release();
}
hr=iVideoWindow->put_FullScreenMode(OATRUE);
#endif
/* // code to find all filter in the filter graph
{
IEnumFilters *iEnumFilters;
pGraph->EnumFilters(&iEnumFilters);
ULONG filterCount = 16;
IFilter *iFilters[16];
iEnumFilters->Next(filterCount, iFilters, &filterCount);
for( ULONG j = 0; j < filterCount; ++j )
{
FILTER_INFO filterInfo;
iFilters[j]->QueryFilterInfo(&filterInfo);
filterInfo.pGraph->Release();
iFilters[j]->Release();
}
iEnumFilters->Release();
}*/
iVideoWindow->HideCursor(OATRUE);
iVideoWindow->put_Visible( OAFALSE );
iVideoWindow->put_AutoShow( OAFALSE );
LONG windowStyle;
iVideoWindow->get_WindowStyle( &windowStyle);
windowStyle &= ~WS_BORDER & ~WS_CAPTION & ~WS_SIZEBOX & ~WS_THICKFRAME &
~WS_HSCROLL & ~WS_VSCROLL & ~WS_VISIBLE;
iVideoWindow->put_WindowStyle( windowStyle);
}
else
iVideoWindow = NULL;
if( (hr = pGraph->QueryInterface(IID_IMediaControl, (void **) &pMC)) == 0)
{
pMC->Run(); // sometimes it returns 1, but still ok
state = PLAYING;
pMC->Release();
}
if( iVideoWindow )
{
iVideoWindow->put_Visible( OAFALSE );
LONG windowStyle;
iVideoWindow->get_WindowStyle( &windowStyle);
windowStyle &= ~WS_BORDER & ~WS_CAPTION & ~WS_SIZEBOX & ~WS_THICKFRAME &
~WS_HSCROLL & ~WS_VSCROLL & ~WS_VISIBLE;
iVideoWindow->put_WindowStyle( windowStyle);
LONG maxWidth;
LONG maxHeight;
hr=iVideoWindow->GetMaxIdealImageSize( &maxWidth, &maxHeight);
#ifdef FULL_SCREEN_VIDEO
#else
iVideoWindow->put_BorderColor( RGB(0,0,0) );
iVideoWindow->put_WindowState(SW_MAXIMIZE);
IBaseFilter *iFilter;
if( pGraph->FindFilterByName((const WCHAR *)L"Video Renderer", &iFilter) == 0)
{
IBasicVideo *iBasicVideo;
if( iFilter->QueryInterface(IID_IBasicVideo, (void **)&iBasicVideo) == 0)
{
LONG screenWidth;
LONG screenHeight;
LONG videoWidth;
LONG videoHeight;
if( iVideoWindow->get_Width(&screenWidth) == 0 &&
iVideoWindow->get_Height(&screenHeight) == 0 &&
iBasicVideo->GetVideoSize(&videoWidth, &videoHeight) == 0)
{
// zoom in by 2 if possible
if( screenWidth >= videoWidth * 2 &&
screenHeight >= videoHeight * 2)
{
videoWidth *= 2;
videoHeight *= 2;
}
// center the video client area
iBasicVideo->SetDestinationPosition(
(screenWidth-videoWidth)/2, (screenHeight-videoHeight)/2,
videoWidth, videoHeight);
}
iBasicVideo->Release();
}
iFilter->Release();
}
#endif
iVideoWindow->HideCursor(OATRUE);
iVideoWindow->SetWindowForeground(OATRUE);
}
if(iVideoWindow)
{
iVideoWindow->Release();
iVideoWindow = NULL;
}
}
if( hr && !skip_on_fail_flag)
err.run("video.play error %d", hr );
}
