private void AddVideoRenderer()
{
int hr;
_videoRender = (IBaseFilter) new VideoMixingRenderer();
Debug.Assert(_videoRender != null);
hr = _graphBuilder.AddFilter(_videoRender, "VMR7");
DsError.ThrowExceptionForHR(hr);
// Configure the video renderer
if (_hostControl != null)
{
IVMRFilterConfig vmrFilterConfig = (IVMRFilterConfig)_videoRender;
hr = vmrFilterConfig.SetRenderingMode(VMRMode.Windowless);
DsError.ThrowExceptionForHR(hr);
_vmrWindowlessControl = (IVMRWindowlessControl)_videoRender;
hr = _vmrWindowlessControl.SetAspectRatioMode(VMRAspectRatioMode.LetterBox);
DsError.ThrowExceptionForHR(hr);
hr = _vmrWindowlessControl.SetVideoClippingWindow(_hostControl.Handle);
DsError.ThrowExceptionForHR(hr);
ResizeMoveHandler(null, null);
_hostControl.Paint += new PaintEventHandler(PaintHandler);
_hostControl.Resize += new EventHandler(ResizeMoveHandler);
_hostControl.Move += new EventHandler(ResizeMoveHandler);
}
else
{
throw new Exception("Host control not specified");
}
}
protected override void CloseInterfaces()
{
_pVMRFilterConfig = null;
_pVMRWindowlessControl = null; // they will be released when pBaseFilter is released
base.CloseInterfaces(); // release pBaseFilter
}
/// <summary>
/// Add VMR7 filter to graph and configure it
/// </summary>
/// <param name="graphBuilder"></param>
public void AddVMR7(IGraphBuilder graphBuilder)
{
Log.Info("VMR7Helper:AddVMR7");
if (vmr7intialized)
{
return;
}
VMR7Filter = (IBaseFilter) new VideoMixingRenderer();
if (VMR7Filter == null)
{
Error.SetError("Unable to play movie", "VMR7 is not installed");
Log.Error("VMR7Helper:Failed to get instance of VMR7 ");
return;
}
int hr;
IVMRFilterConfig config = VMR7Filter as IVMRFilterConfig;
if (config != null)
{
hr = config.SetNumberOfStreams(1);
if (hr != 0)
{
Log.Error("VMR7Helper:Failed to set number of streams:0x{0:X}", hr);
DirectShowUtil.ReleaseComObject(VMR7Filter);
VMR7Filter = null;
return;
}
}
hr = graphBuilder.AddFilter(VMR7Filter, "Video Mixing Renderer");
if (hr != 0)
{
Error.SetError("Unable to play movie", "Unable to initialize VMR7");
Log.Error("VMR7Helper:Failed to add VMR7 to filtergraph");
DirectShowUtil.ReleaseComObject(VMR7Filter);
VMR7Filter = null;
return;
}
m_graphBuilder = graphBuilder;
m_mixerBitmap = VMR7Filter as IVMRMixerBitmap;
quality = VMR7Filter as IQualProp;
g_vmr7 = this;
vmr7intialized = true;
}
protected override void Initialize(IGraphBuilder pGraphBuilder, IntPtr hMediaWindow)
{
// QUERY the VMR interfaces
try
{
_pVMRFilterConfig = (IVMRFilterConfig)BaseFilter;
_pVMRFilterConfig.SetRenderingMode(VMRMode.VMRMode_Windowless);
_pVMRWindowlessControl = (IVMRWindowlessControl)BaseFilter;
_pVMRWindowlessControl.SetVideoClippingWindow(hMediaWindow);
_pVMRWindowlessControl.SetAspectRatioMode(VMR_ASPECT_RATIO_MODE.VMR_ARMODE_NONE);
}
catch (Exception e)
{
throw new FilterGraphBuilderException(GraphBuilderError.ConfigureVMR, e);
}
}
public void DoTests()
{
try
{
BuildGraph(testFile, out this.graphBuilder, out this.vmr7Filter);
this.vmrConfig = this.vmr7Filter as IVMRFilterConfig;
TestNumberOfStreams();
TestRenderingMode();
TestRenderingPrefs();
TestSetImageCompositor();
}
finally
{
Marshal.ReleaseComObject(this.vmr7Filter);
Marshal.ReleaseComObject(this.graphBuilder);
}
}
protected void AddVideoRender()
{
int hr;
_videoRender = (IBaseFilter) new VideoMixingRenderer();
hr = _graphBuilder.AddFilter(_videoRender, "VMR");
DsError.ThrowExceptionForHR(hr);
// Configure the video renderer
IVMRFilterConfig vmrFilterConfig = (IVMRFilterConfig)_videoRender;
hr = vmrFilterConfig.SetRenderingMode(VMRMode.Windowless);
DsError.ThrowExceptionForHR(hr);
_windowlessControl = (IVMRWindowlessControl)_videoRender;
hr = _windowlessControl.SetAspectRatioMode(VMRAspectRatioMode.LetterBox);
DsError.ThrowExceptionForHR(hr);
NotifyPropertyChanged("VideoRender");
}
public void BuildGraph()
{
int hr = 0;
graphBuilder = (IFilterGraph2) new FilterGraph();
rot = new DsROTEntry(graphBuilder);
vmr = (IBaseFilter) new VideoMixingRenderer();
IVMRFilterConfig filterConfig = (IVMRFilterConfig)vmr;
hr = filterConfig.SetNumberOfStreams(2);
DsError.ThrowExceptionForHR(hr);
// Put the VMR7 in Renderless mode
hr = filterConfig.SetRenderingMode(VMRMode.Renderless);
DsError.ThrowExceptionForHR(hr);
surfaceAllocatorNotify = (IVMRSurfaceAllocatorNotify)vmr;
hr = surfaceAllocatorNotify.AdviseSurfaceAllocator(cookie, this);
DsError.ThrowExceptionForHR(hr);
defaultAllocatorPresenter = (IVMRSurfaceAllocator)Activator.CreateInstance(Type.GetTypeFromCLSID(VMRClsId.AllocPresenter));
form = new Form();
form.Show();
hr = (defaultAllocatorPresenter as IVMRWindowlessControl).SetVideoClippingWindow(form.Handle);
DsError.ThrowExceptionForHR(hr);
hr = this.AdviseNotify(surfaceAllocatorNotify);
DsError.ThrowExceptionForHR(hr);
hr = graphBuilder.AddFilter(vmr, "VMR");
hr = graphBuilder.RenderFile(@"..\..\..\Resources\foo.avi", null);
DsError.ThrowExceptionForHR(hr);
}
public void BuildGraph()
{
int hr = 0;
graphBuilder = (IFilterGraph2) new FilterGraph();
rot = new DsROTEntry(graphBuilder);
vmr = (IBaseFilter) new VideoMixingRenderer();
IVMRFilterConfig filterConfig = (IVMRFilterConfig)vmr;
hr = filterConfig.SetNumberOfStreams(2);
DsError.ThrowExceptionForHR(hr);
// Set the custom compositor
hr = filterConfig.SetImageCompositor(this);
DsError.ThrowExceptionForHR(hr);
IVMRMixerControl mixerControl = (IVMRMixerControl)vmr;
// In COLORREF, colors are coded in ABGR format
hr = mixerControl.SetBackgroundClr(backgroundColorABGR);
DsError.ThrowExceptionForHR(hr);
hr = graphBuilder.AddFilter(vmr, "VMR");
DsError.ThrowExceptionForHR(hr);
// The 2 VMR pins must be connected...
hr = graphBuilder.RenderFile(@"..\..\..\Resources\foo.avi", null);
DsError.ThrowExceptionForHR(hr);
hr = graphBuilder.RenderFile(@"..\..\..\Resources\foo.avi", null);
DsError.ThrowExceptionForHR(hr);
hr = (graphBuilder as IMediaControl).Run();
DsError.ThrowExceptionForHR(hr);
}
public void DoTests()
{
int hr = 0;
IVMRFilterConfig vmrConfig = null;
DsROTEntry ROT = null;
this.Show();
try
{
// Just build the graph with unconnected source filter and VMR7
BuildGraph(testFile, out this.graphBuilder, out this.sourceFilter, out this.vmr7Filter);
// VMR7 need to be placed in Windowless mode before connecting it to the rest of the graph
vmrConfig = this.vmr7Filter as IVMRFilterConfig;
hr = vmrConfig.SetRenderingMode(VMRMode.Windowless);
Marshal.ThrowExceptionForHR(hr);
this.vmrWndConfig = this.vmr7Filter as IVMRWindowlessControl;
TestSetVideoClippingWindow();
TestAspectRatioMode();
TestBorderColor();
TestColorKey();
TestGetMaxIdealVideoSize();
TestGetMinIdealVideoSize();
// Connect source filter with the VMR7
ConnectGraph(ref this.graphBuilder, ref this.sourceFilter, ref this.vmr7Filter);
ROT = new DsROTEntry(this.graphBuilder);
// Run the graph to test other methods
this.mediaControl = this.graphBuilder as IMediaControl;
hr = this.mediaControl.Run();
Marshal.ThrowExceptionForHR(hr);
this.timer = new System.Windows.Forms.Timer();
this.timer.Interval = 2000;
this.timer.Enabled = true;
this.timer.Tick += new EventHandler(DoTestsPart2);
this.timer.Start();
this.isPlaying = true;
TestVideoPosition();
Application.Run(this);
}
finally
{
if (ROT != null)
{
ROT.Dispose();
}
if (this.mediaControl != null)
{
this.mediaControl.Stop();
}
Marshal.ReleaseComObject(this.vmr7Filter);
Marshal.ReleaseComObject(this.sourceFilter);
Marshal.ReleaseComObject(this.graphBuilder);
}
}
