HRESULT ConfigureVMR9(HWND window)
{
assert(g_graph != NULL);
HRESULT hr = S_OK;
RECT rect;
SmartPtr<IVMRFilterConfig9> filterConfig;
// Create the VMR-9.
FAIL_RET( CoCreateInstance(CLSID_VideoMixingRenderer9, NULL, CLSCTX_INPROC_SERVER, IID_IBaseFilter, (void**)&g_filter) );
// Configure the VMR-9.
// Set the maximum number of video streams, and set windowless mode.
FAIL_RET( g_filter->QueryInterface(IID_IVMRFilterConfig9, reinterpret_cast<void**>(&filterConfig)) );
FAIL_RET( filterConfig->SetNumberOfStreams( MAX_VIDEO_STREAMS ) );
FAIL_RET( filterConfig->SetRenderingMode( VMR9Mode_Windowless ) );
FAIL_RET( g_filter->QueryInterface(IID_IVMRWindowlessControl9, reinterpret_cast<void**>(&g_windowlessControl)) );
FAIL_RET( g_windowlessControl->SetVideoClippingWindow( window ) );
GetClientRect( window, & rect );
FAIL_RET( g_windowlessControl->SetVideoPosition(NULL, & rect) );
// Set the custom compositor on the VMR-9.
g_compositor.Attach( new CMyCompositor9() );
FAIL_RET( filterConfig->SetImageCompositor( g_compositor ));
// Add the VMR-9 to the filter graph.
FAIL_RET( g_graph->AddFilter(g_filter, L"Video Mixing Renderer 9") );
return hr;
}
HRESULT StartGraph(HWND window)
{
// Clear DirectShow interfaces (COM smart pointers)
CloseGraph(window);
SmartPtr<IVMRFilterConfig9> filterConfig;
BSTR path = GetMoviePath();
if( ! path )
{
return E_FAIL;
}
HRESULT hr;
hr = CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER, IID_IGraphBuilder, (void**)&g_graph);
if (SUCCEEDED(hr))
{
hr = CoCreateInstance(CLSID_VideoMixingRenderer9, NULL, CLSCTX_INPROC_SERVER, IID_IBaseFilter, (void**)&g_filter);
}
if (SUCCEEDED(hr))
{
hr = g_filter->QueryInterface(IID_IVMRFilterConfig9, reinterpret_cast<void**>(&filterConfig));
}
if (SUCCEEDED(hr))
{
hr = filterConfig->SetRenderingMode( VMR9Mode_Renderless );
}
if (SUCCEEDED(hr))
{
hr = filterConfig->SetNumberOfStreams(2);
}
if (SUCCEEDED(hr))
{
hr = SetAllocatorPresenter( g_filter, window );
}
if (SUCCEEDED(hr))
{
hr = g_graph->AddFilter(g_filter, L"Video Mixing Renderer 9");
}
if (SUCCEEDED(hr))
{
hr = g_graph->QueryInterface(IID_IMediaControl, reinterpret_cast<void**>(&g_mediaControl));
}
if (SUCCEEDED(hr))
{
hr = g_graph->RenderFile( path, NULL );
}
if (SUCCEEDED(hr))
{
hr = g_mediaControl->Run();
}
SysFreeString(path);
return hr;
}