本文整理汇总了C#中IMediaControl.StopWhenReady方法的典型用法代码示例。如果您正苦于以下问题：C# IMediaControl.StopWhenReady方法的具体用法？C# IMediaControl.StopWhenReady怎么用？C# IMediaControl.StopWhenReady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IMediaControl的用法示例。
在下文中一共展示了IMediaControl.StopWhenReady方法的2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
/// <summary>
/// Worker thread that captures the images
/// </summary>
private void RunWorker()
{
try
{
// 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 (Exception)
{
// Trace
Trace.TraceInformation(
"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);
// Get the video window
IVideoWindow wnd = (IVideoWindow) Graph;
wnd.put_AutoShow(false);
wnd = null;
// Create the control and run
Control = (IMediaControl) Graph;
Control.Run();
// Wait for the stop signal
while (!StopSignal.WaitOne(0, true))
{
Thread.Sleep(10);
}
// Stop when ready
Control.StopWhenReady();
}
}
catch (Exception ex)
{
// Trace
Trace.WriteLine(ex);
}
finally
{
// Clean up
Release();
}
}示例2: 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;
}
}