本文整理汇总了C#中IBaseFilter.GetPin方法的典型用法代码示例。如果您正苦于以下问题：C# IBaseFilter.GetPin方法的具体用法？C# IBaseFilter.GetPin怎么用？C# IBaseFilter.GetPin使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类IBaseFilter的用法示例。
在下文中一共展示了IBaseFilter.GetPin方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: RunWorker
void RunWorker()
{
try
{
graph = Activator.CreateInstance(Type.GetTypeFromCLSID(FilterGraph)) as IGraphBuilder;
sourceObject = FilterInfo.CreateFilter(deviceMoniker);
grabber = Activator.CreateInstance(Type.GetTypeFromCLSID(SampleGrabber)) as ISampleGrabber;
grabberObject = grabber as IBaseFilter;
graph.AddFilter(sourceObject, "source");
graph.AddFilter(grabberObject, "grabber");
using (AMMediaType mediaType = new AMMediaType())
{
mediaType.MajorType = MediaTypes.Video;
mediaType.SubType = MediaSubTypes.RGB32;
grabber.SetMediaType(mediaType);
if (graph.Connect(sourceObject.GetPin(PinDirection.Output, 0), grabberObject.GetPin(PinDirection.Input, 0)) >= 0)
{
if (grabber.GetConnectedMediaType(mediaType) == 0)
{
VideoInfoHeader header = (VideoInfoHeader)Marshal.PtrToStructure(mediaType.FormatPtr, typeof(VideoInfoHeader));
capGrabber.Width = header.BmiHeader.Width;
capGrabber.Height = header.BmiHeader.Height;
}
}
graph.Render(grabberObject.GetPin(PinDirection.Output, 0));
grabber.SetBufferSamples(false);
grabber.SetOneShot(false);
grabber.SetCallback(capGrabber, 1);
IVideoWindow wnd = (IVideoWindow)graph;
wnd.put_AutoShow(false);
wnd = null;
control = (IMediaControl)graph;
control.Run();
while (!stopSignal.WaitOne(0, true))
{
Thread.Sleep(10);
}
control.StopWhenReady();
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex);
}
finally
{
graph = null;
sourceObject = null;
grabberObject = null;
grabber = null;
capGrabber = null;
control = null;
}
}示例2: RunWorker
/// <summary>
/// Worker thread that captures the images
/// </summary>
private void RunWorker()
{
try
{
// Create the main graph
m_igrphbldGraph = Activator.CreateInstance(Type.GetTypeFromCLSID(FilterGraph)) as IGraphBuilder;
// Create the webcam source
m_sourceObject = FilterInfo.CreateFilter(m_sMonikerString);
// Create the grabber
m_isplGrabber = Activator.CreateInstance(Type.GetTypeFromCLSID(SampleGrabber)) as ISampleGrabber;
m_grabberObject = m_isplGrabber as IBaseFilter;
// Add the source and grabber to the main graph
m_igrphbldGraph.AddFilter(m_sourceObject, "source");
m_igrphbldGraph.AddFilter(m_grabberObject, "grabber");
using (AMMediaType mediaType = new AMMediaType())
{
mediaType.MajorType = MediaTypes.Video;
mediaType.SubType = MediaSubTypes.RGB32;
m_isplGrabber.SetMediaType(mediaType);
if (m_igrphbldGraph.Connect(m_sourceObject.GetPin(PinDirection.Output, 0), m_grabberObject.GetPin(PinDirection.Input, 0)) >= 0)
{
if (m_isplGrabber.GetConnectedMediaType(mediaType) == 0)
{
// During startup, this code can be too fast, so try at least 3 times
int retryCount = 0;
bool succeeded = false;
while ((retryCount < 3) && !succeeded)
{
// Tried again
retryCount++;
try
{
// Retrieve the grabber information
VideoInfoHeader header = (VideoInfoHeader)Marshal.PtrToStructure(mediaType.FormatPtr, typeof(VideoInfoHeader));
m_grbrCapGrabber.Width = header.BmiHeader.Width;
m_grbrCapGrabber.Height = header.BmiHeader.Height;
// Succeeded
succeeded = true;
}
catch (Exception retryException)
{
// Trace
Trace.TraceInformation("Failed to retrieve the grabber information, tried {0} time(s)", retryCount);
// Sleep
Thread.Sleep(50);
}
}
}
}
m_igrphbldGraph.Render(m_grabberObject.GetPin(PinDirection.Output, 0));
m_isplGrabber.SetBufferSamples(false);
m_isplGrabber.SetOneShot(false);
m_isplGrabber.SetCallback(m_grbrCapGrabber, 1);
// Get the video window
IVideoWindow wnd = (IVideoWindow)m_igrphbldGraph;
wnd.put_AutoShow(false);
wnd = null;
// Create the control and run
m_imedctrlControl = (IMediaControl)m_igrphbldGraph;
m_imedctrlControl.Run();
// Wait for the stop signal
while (!m_rstevStopSignal.WaitOne(0, true))
{
Thread.Sleep(10);
}
// Stop when ready
// _control.StopWhenReady();
m_imedctrlControl.Stop();
// Wait a bit... It apparently takes some time to stop IMediaControl
Thread.Sleep(1000);
}
}
catch (Exception ex)
{
// Trace
Trace.WriteLine(ex);
}
finally
{
// Clean up
this.Release();
}
}示例3: Init
/// <summary>
/// Worker thread that captures the images
/// </summary>
private void Init()
{
try
{
log.Trace("Start worker thread");
// Create the main graph
_graph = Activator.CreateInstance(Type.GetTypeFromCLSID(FilterGraph)) as IGraphBuilder;
// Create the webcam source
_sourceObject = FilterInfo.CreateFilter(_monikerString);
// Create the grabber
_grabber = Activator.CreateInstance(Type.GetTypeFromCLSID(SampleGrabber)) as ISampleGrabber;
_grabberObject = _grabber as IBaseFilter;
// Add the source and grabber to the main graph
_graph.AddFilter(_sourceObject, "source");
_graph.AddFilter(_grabberObject, "grabber");
using (AMMediaType mediaType = new AMMediaType())
{
mediaType.MajorType = MediaTypes.Video;
mediaType.SubType = MediaSubTypes.RGB32;
_grabber.SetMediaType(mediaType);
if (_graph.Connect(_sourceObject.GetPin(PinDirection.Output, 0), _grabberObject.GetPin(PinDirection.Input, 0)) >= 0)
{
if (_grabber.GetConnectedMediaType(mediaType) == 0)
{
// During startup, this code can be too fast, so try at least 3 times
int retryCount = 0;
bool succeeded = false;
while ((retryCount < 3) && !succeeded)
{
// Tried again
retryCount++;
try
{
// Retrieve the grabber information
VideoInfoHeader header = (VideoInfoHeader)Marshal.PtrToStructure(mediaType.FormatPtr, typeof(VideoInfoHeader));
_capGrabber.Width = header.BmiHeader.Width;
_capGrabber.Height = header.BmiHeader.Height;
// Succeeded
succeeded = true;
}
catch
{
// Trace
log.InfoFormat("Failed to retrieve the grabber information, tried {0} time(s)", retryCount);
// Sleep
Thread.Sleep(50);
}
}
}
}
_graph.Render(_grabberObject.GetPin(PinDirection.Output, 0));
_grabber.SetBufferSamples(false);
_grabber.SetOneShot(false);
_grabber.SetCallback(_capGrabber, 1);
log.Trace("_grabber set up");
// Get the video window
IVideoWindow wnd = (IVideoWindow)_graph;
wnd.put_AutoShow(false);
wnd = null;
// Create the control and run
_control = (IMediaControl)_graph;
_control.Run();
log.Trace("control runs");
// Wait for the stop signal
//while (!_stopSignal.WaitOne(0, true))
//{
// Thread.Sleep(10);
//}
}
}catch (Exception ex)
{
// Trace
log.Debug(ex);
Release();
}
}