| public static CreateFilter ( string filterMoniker ) : object | ||
| filterMoniker | string | Filter's moniker string. |
| Результат | object | |
public bool GetCameraPropertyRange(CameraControlProperty property, out int minValue, out int maxValue, out int stepSize, out int defaultValue, out CameraControlFlags controlFlags)
{
bool flag = true;
if (deviceMoniker == null || string.IsNullOrEmpty(deviceMoniker))
{
throw new ArgumentException("Video source is not specified.");
}
lock (sync)
{
object obj = null;
try
{
obj = FilterInfo.CreateFilter(deviceMoniker);
}
catch
{
throw new ApplicationException("Failed creating device object for moniker.");
}
if (!(obj is IAMCameraControl))
{
throw new NotSupportedException("The video source does not support camera control.");
}
IAMCameraControl iAMCameraControl = (IAMCameraControl)obj;
int range = iAMCameraControl.GetRange(property, out minValue, out maxValue, out stepSize, out defaultValue, out controlFlags);
flag = (range >= 0);
Marshal.ReleaseComObject(obj);
return(flag);
}
}
public void DisplayPropertyPage(IntPtr parentWindow)
{
if (deviceMoniker == null || deviceMoniker == string.Empty)
{
throw new ArgumentException("Video source is not specified.");
}
lock (sync)
{
if (IsRunning)
{
parentWindowForPropertyPage = parentWindow;
needToDisplayPropertyPage = true;
}
else
{
object obj = null;
try
{
obj = FilterInfo.CreateFilter(deviceMoniker);
}
catch
{
throw new ApplicationException("Failed creating device object for moniker.");
}
if (!(obj is ISpecifyPropertyPages))
{
throw new NotSupportedException("The video source does not support configuration property page.");
}
DisplayPropertyPage(parentWindow, obj);
Marshal.ReleaseComObject(obj);
}
}
}
/// <summary>
/// Display property window for the video capture device providing its configuration
/// capabilities.
/// </summary>
///
/// <param name="parentWindow">Handle of parent window.</param>
///
/// <remarks><para><note>If you pass parent window's handle to this method, then the
/// displayed property page will become modal window and none of the controls from the
/// parent window will be accessible. In order to make it modeless it is required
/// to pass <see cref="IntPtr.Zero"/> as parent window's handle.
/// </note></para>
/// </remarks>
///
/// <exception cref="NotSupportedException">The video source does not support configuration property page.</exception>
///
public void DisplayPropertyPage(IntPtr parentWindow)
{
// check source
if ((deviceMoniker == null) || (deviceMoniker == string.Empty))
{
throw new ArgumentException("Video source is not specified");
}
lock (this)
{
if (IsRunning)
{
// pass the request to backgroud thread if video source is running
parentWindowForPropertyPage = parentWindow;
needToDisplayPropertyPage = true;
return;
}
object tempSourceObject = null;
// create source device's object
try
{
tempSourceObject = FilterInfo.CreateFilter(deviceMoniker);
}
catch
{
throw new ApplicationException("Failed creating device object for moniker.");
}
if (!(tempSourceObject is ISpecifyPropertyPages))
{
throw new NotSupportedException("The video source does not support configuration property page.");
}
// retrieve ISpecifyPropertyPages interface of the device
ISpecifyPropertyPages pPropPages = (ISpecifyPropertyPages)tempSourceObject;
// get property pages from the property bag
CAUUID caGUID;
pPropPages.GetPages(out caGUID);
// get filter info
FilterInfo filterInfo = new FilterInfo(deviceMoniker);
// create and display the OlePropertyFrame form
Win32.OleCreatePropertyFrame(parentWindow, 0, 0, filterInfo.Name, 1, ref tempSourceObject, caGUID.cElems, caGUID.pElems, 0, 0, IntPtr.Zero);
// release COM objects
Marshal.FreeCoTaskMem(caGUID.pElems);
Marshal.ReleaseComObject(tempSourceObject);
}
}
/// <summary>
/// Gets the range and default value of a specified camera property.
/// </summary>
///
/// <param name="property">Specifies the property to query.</param>
/// <param name="minValue">Receives the minimum value of the property.</param>
/// <param name="maxValue">Receives the maximum value of the property.</param>
/// <param name="stepSize">Receives the step size for the property.</param>
/// <param name="defaultValue">Receives the default value of the property.</param>
/// <param name="controlFlags">Receives a member of the <see cref="CameraControlFlags"/> enumeration, indicating whether the property is controlled automatically or manually.</param>
///
/// <returns>Returns true on success or false otherwise.</returns>
///
/// <exception cref="ArgumentException">Video source is not specified - device moniker is not set.</exception>
/// <exception cref="ApplicationException">Failed creating device object for moniker.</exception>
/// <exception cref="NotSupportedException">The video source does not support camera control.</exception>
///
public bool GetVideoPropertyRange(VideoProcAmpProperty property, out int minValue, out int maxValue, out int stepSize, out int defaultValue, out VideoProcAmpFlags controlFlags)
{
bool ret = true;
// check if source was set
if ((deviceMoniker == null) || (string.IsNullOrEmpty(deviceMoniker)))
{
throw new ArgumentException("Video source is not specified.");
}
lock (sync)
{
object tempSourceObject = null;
// create source device's object
try
{
tempSourceObject = FilterInfo.CreateFilter(deviceMoniker);
}
catch
{
throw new ApplicationException("Failed creating device object for moniker.");
}
if (!(tempSourceObject is IAMVideoProcAmp))
{
throw new NotSupportedException("The video source does not support camera control.");
}
IAMVideoProcAmp pCamControl = (IAMVideoProcAmp)tempSourceObject;
int hr = pCamControl.GetRange(property, out minValue, out maxValue, out stepSize, out defaultValue, out controlFlags);
ret = (hr >= 0);
Marshal.ReleaseComObject(tempSourceObject);
}
return(ret);
}
private void WorkerThread(bool runGraph)
{
ReasonToFinishPlaying reason = ReasonToFinishPlaying.StoppedByUser;
bool flag = false;
Grabber grabber = new Grabber(this, snapshotMode: false);
Grabber grabber2 = new Grabber(this, snapshotMode: true);
object obj = null;
object obj2 = null;
object obj3 = null;
object obj4 = null;
object retInterface = null;
ICaptureGraphBuilder2 captureGraphBuilder = null;
IFilterGraph2 filterGraph = null;
IBaseFilter baseFilter = null;
IBaseFilter baseFilter2 = null;
IBaseFilter baseFilter3 = null;
ISampleGrabber sampleGrabber = null;
ISampleGrabber sampleGrabber2 = null;
IMediaControl mediaControl = null;
IAMVideoControl iAMVideoControl = null;
IMediaEventEx mediaEventEx = null;
IPin pin = null;
IAMCrossbar iAMCrossbar = null;
try
{
Type typeFromCLSID = Type.GetTypeFromCLSID(Clsid.CaptureGraphBuilder2);
if (typeFromCLSID == null)
{
throw new ApplicationException("Failed creating capture graph builder");
}
obj = Activator.CreateInstance(typeFromCLSID);
captureGraphBuilder = (ICaptureGraphBuilder2)obj;
typeFromCLSID = Type.GetTypeFromCLSID(Clsid.FilterGraph);
if (typeFromCLSID == null)
{
throw new ApplicationException("Failed creating filter graph");
}
obj2 = Activator.CreateInstance(typeFromCLSID);
filterGraph = (IFilterGraph2)obj2;
captureGraphBuilder.SetFiltergraph((IGraphBuilder)filterGraph);
sourceObject = FilterInfo.CreateFilter(deviceMoniker);
if (sourceObject == null)
{
throw new ApplicationException("Failed creating device object for moniker");
}
baseFilter = (IBaseFilter)sourceObject;
try
{
iAMVideoControl = (IAMVideoControl)sourceObject;
}
catch
{
}
typeFromCLSID = Type.GetTypeFromCLSID(Clsid.SampleGrabber);
if (typeFromCLSID == null)
{
throw new ApplicationException("Failed creating sample grabber");
}
obj3 = Activator.CreateInstance(typeFromCLSID);
sampleGrabber = (ISampleGrabber)obj3;
baseFilter2 = (IBaseFilter)obj3;
obj4 = Activator.CreateInstance(typeFromCLSID);
sampleGrabber2 = (ISampleGrabber)obj4;
baseFilter3 = (IBaseFilter)obj4;
filterGraph.AddFilter(baseFilter, "source");
filterGraph.AddFilter(baseFilter2, "grabber_video");
filterGraph.AddFilter(baseFilter3, "grabber_snapshot");
AMMediaType aMMediaType = new AMMediaType();
aMMediaType.MajorType = MediaType.Video;
aMMediaType.SubType = MediaSubType.RGB24;
sampleGrabber.SetMediaType(aMMediaType);
sampleGrabber2.SetMediaType(aMMediaType);
captureGraphBuilder.FindInterface(FindDirection.UpstreamOnly, Guid.Empty, baseFilter, typeof(IAMCrossbar).GUID, out retInterface);
if (retInterface != null)
{
iAMCrossbar = (IAMCrossbar)retInterface;
}
isCrossbarAvailable = (iAMCrossbar != null);
crossbarVideoInputs = ColletCrossbarVideoInputs(iAMCrossbar);
if (iAMVideoControl != null)
{
captureGraphBuilder.FindPin(sourceObject, PinDirection.Output, PinCategory.StillImage, MediaType.Video, unconnected: false, 0, out pin);
if (pin != null)
{
iAMVideoControl.GetCaps(pin, out VideoControlFlags flags);
flag = ((flags & VideoControlFlags.ExternalTriggerEnable) != 0);
}
}
sampleGrabber.SetBufferSamples(bufferThem: false);
sampleGrabber.SetOneShot(oneShot: false);
sampleGrabber.SetCallback(grabber, 1);
sampleGrabber2.SetBufferSamples(bufferThem: true);
sampleGrabber2.SetOneShot(oneShot: false);
sampleGrabber2.SetCallback(grabber2, 1);
GetPinCapabilitiesAndConfigureSizeAndRate(captureGraphBuilder, baseFilter, PinCategory.Capture, videoResolution, ref videoCapabilities);
if (flag)
{
GetPinCapabilitiesAndConfigureSizeAndRate(captureGraphBuilder, baseFilter, PinCategory.StillImage, snapshotResolution, ref snapshotCapabilities);
}
else
{
snapshotCapabilities = new VideoCapabilities[0];
}
lock (cacheVideoCapabilities)
{
if (videoCapabilities != null && !cacheVideoCapabilities.ContainsKey(deviceMoniker))
{
cacheVideoCapabilities.Add(deviceMoniker, videoCapabilities);
}
}
lock (cacheSnapshotCapabilities)
{
if (snapshotCapabilities != null && !cacheSnapshotCapabilities.ContainsKey(deviceMoniker))
{
cacheSnapshotCapabilities.Add(deviceMoniker, snapshotCapabilities);
}
}
if (runGraph)
{
captureGraphBuilder.RenderStream(PinCategory.Capture, MediaType.Video, baseFilter, null, baseFilter2);
if (sampleGrabber.GetConnectedMediaType(aMMediaType) == 0)
{
VideoInfoHeader videoInfoHeader = (VideoInfoHeader)Marshal.PtrToStructure(aMMediaType.FormatPtr, typeof(VideoInfoHeader));
grabber.Width = videoInfoHeader.BmiHeader.Width;
grabber.Height = videoInfoHeader.BmiHeader.Height;
aMMediaType.Dispose();
}
if (flag && provideSnapshots)
{
captureGraphBuilder.RenderStream(PinCategory.StillImage, MediaType.Video, baseFilter, null, baseFilter3);
if (sampleGrabber2.GetConnectedMediaType(aMMediaType) == 0)
{
VideoInfoHeader videoInfoHeader2 = (VideoInfoHeader)Marshal.PtrToStructure(aMMediaType.FormatPtr, typeof(VideoInfoHeader));
grabber2.Width = videoInfoHeader2.BmiHeader.Width;
grabber2.Height = videoInfoHeader2.BmiHeader.Height;
aMMediaType.Dispose();
}
}
mediaControl = (IMediaControl)obj2;
mediaEventEx = (IMediaEventEx)obj2;
mediaControl.Run();
if (flag && provideSnapshots)
{
startTime = DateTime.Now;
iAMVideoControl.SetMode(pin, VideoControlFlags.ExternalTriggerEnable);
}
do
{
if (mediaEventEx != null && mediaEventEx.GetEvent(out DsEvCode lEventCode, out IntPtr lParam, out IntPtr lParam2, 0) >= 0)
{
mediaEventEx.FreeEventParams(lEventCode, lParam, lParam2);
if (lEventCode == DsEvCode.DeviceLost)
{
reason = ReasonToFinishPlaying.DeviceLost;
break;
}
}
if (needToSetVideoInput)
{
needToSetVideoInput = false;
if (isCrossbarAvailable.Value)
{
SetCurrentCrossbarInput(iAMCrossbar, crossbarVideoInput);
crossbarVideoInput = GetCurrentCrossbarInput(iAMCrossbar);
}
}
if (needToSimulateTrigger)
{
needToSimulateTrigger = false;
if (flag && provideSnapshots)
{
iAMVideoControl.SetMode(pin, VideoControlFlags.Trigger);
}
}
if (needToDisplayPropertyPage)
{
needToDisplayPropertyPage = false;
DisplayPropertyPage(parentWindowForPropertyPage, sourceObject);
if (iAMCrossbar != null)
{
crossbarVideoInput = GetCurrentCrossbarInput(iAMCrossbar);
}
}
if (needToDisplayCrossBarPropertyPage)
{
needToDisplayCrossBarPropertyPage = false;
if (iAMCrossbar != null)
{
DisplayPropertyPage(parentWindowForPropertyPage, iAMCrossbar);
crossbarVideoInput = GetCurrentCrossbarInput(iAMCrossbar);
}
}
}while (!stopEvent.WaitOne(100, exitContext: false));
mediaControl.Stop();
}
}
catch (Exception ex)
{
if (this.VideoSourceError != null)
{
this.VideoSourceError(this, new VideoSourceErrorEventArgs(ex.Message));
}
}
finally
{
captureGraphBuilder = null;
filterGraph = null;
baseFilter = null;
mediaControl = null;
iAMVideoControl = null;
mediaEventEx = null;
pin = null;
iAMCrossbar = null;
baseFilter2 = null;
baseFilter3 = null;
sampleGrabber = null;
sampleGrabber2 = null;
if (obj2 != null)
{
Marshal.ReleaseComObject(obj2);
obj2 = null;
}
if (sourceObject != null)
{
Marshal.ReleaseComObject(sourceObject);
sourceObject = null;
}
if (obj3 != null)
{
Marshal.ReleaseComObject(obj3);
obj3 = null;
}
if (obj4 != null)
{
Marshal.ReleaseComObject(obj4);
obj4 = null;
}
if (obj != null)
{
Marshal.ReleaseComObject(obj);
obj = null;
}
if (retInterface != null)
{
Marshal.ReleaseComObject(retInterface);
retInterface = null;
}
}
if (this.PlayingFinished != null)
{
this.PlayingFinished(this, reason);
}
}
private void WorkerThread(bool runGraph)
{
// grabber
Grabber grabber = new Grabber(this);
// objects
object captureGraphObject = null;
object graphObject = null;
object grabberObject = null;
// interfaces
ICaptureGraphBuilder2 captureGraph = null;
IFilterGraph2 graph = null;
IBaseFilter sourceBase = null;
IBaseFilter grabberBase = null;
ISampleGrabber sampleGrabber = null;
IMediaControl mediaControl = null;
try
{
// get type of capture graph builder
Type type = Type.GetTypeFromCLSID(Clsid.CaptureGraphBuilder2);
if (type == null)
{
throw new ApplicationException("Failed creating capture graph builder");
}
// create capture graph builder
captureGraphObject = Activator.CreateInstance(type);
captureGraph = (ICaptureGraphBuilder2)captureGraphObject;
// get type of filter graph
type = Type.GetTypeFromCLSID(Clsid.FilterGraph);
if (type == null)
{
throw new ApplicationException("Failed creating filter graph");
}
// create filter graph
graphObject = Activator.CreateInstance(type);
graph = (IFilterGraph2)graphObject;
// set filter graph to the capture graph builder
captureGraph.SetFiltergraph((IGraphBuilder)graph);
// create source device's object
sourceObject = FilterInfo.CreateFilter(deviceMoniker);
if (sourceObject == null)
{
throw new ApplicationException("Failed creating device object for moniker");
}
// get base filter interface of source device
sourceBase = (IBaseFilter)sourceObject;
// get type of sample grabber
type = Type.GetTypeFromCLSID(Clsid.SampleGrabber);
if (type == null)
{
throw new ApplicationException("Failed creating sample grabber");
}
// create sample grabber
grabberObject = Activator.CreateInstance(type);
sampleGrabber = (ISampleGrabber)grabberObject;
grabberBase = (IBaseFilter)grabberObject;
// add source and grabber filters to graph
graph.AddFilter(sourceBase, "source");
graph.AddFilter(grabberBase, "grabber");
// set media type
AMMediaType mediaType = new AMMediaType( );
mediaType.MajorType = MediaType.Video;
mediaType.SubType = MediaSubType.RGB24;
sampleGrabber.SetMediaType(mediaType);
// configure sample grabber
sampleGrabber.SetBufferSamples(false);
sampleGrabber.SetOneShot(false);
sampleGrabber.SetCallback(grabber, 1);
// check if it is required to change capture settings
if ((desiredFrameRate != 0) || ((desiredFrameSize.Width != 0) && (desiredFrameSize.Height != 0)))
{
object streamConfigObject;
// get stream configuration object
captureGraph.FindInterface(PinCategory.Capture, MediaType.Video, sourceBase, typeof(IAMStreamConfig).GUID, out streamConfigObject);
if (streamConfigObject != null)
{
IAMStreamConfig streamConfig = (IAMStreamConfig)streamConfigObject;
if (videoCapabilities == null)
{
// get all video capabilities
try
{
videoCapabilities = AForge.Video.DirectShow.VideoCapabilities.FromStreamConfig(streamConfig);
}
catch
{
}
}
// get current format
streamConfig.GetFormat(out mediaType);
VideoInfoHeader infoHeader = (VideoInfoHeader)Marshal.PtrToStructure(mediaType.FormatPtr, typeof(VideoInfoHeader));
// change frame size if required
if ((desiredFrameSize.Width != 0) && (desiredFrameSize.Height != 0))
{
infoHeader.BmiHeader.Width = desiredFrameSize.Width;
infoHeader.BmiHeader.Height = desiredFrameSize.Height;
}
// change frame rate if required
if (desiredFrameRate != 0)
{
infoHeader.AverageTimePerFrame = 10000000 / desiredFrameRate;
}
// copy the media structure back
Marshal.StructureToPtr(infoHeader, mediaType.FormatPtr, false);
// set the new format
streamConfig.SetFormat(mediaType);
mediaType.Dispose( );
}
}
else
{
if (videoCapabilities == null)
{
object streamConfigObject;
// get stream configuration object
captureGraph.FindInterface(PinCategory.Capture, MediaType.Video, sourceBase, typeof(IAMStreamConfig).GUID, out streamConfigObject);
if (streamConfigObject != null)
{
IAMStreamConfig streamConfig = (IAMStreamConfig)streamConfigObject;
// get all video capabilities
try
{
videoCapabilities = AForge.Video.DirectShow.VideoCapabilities.FromStreamConfig(streamConfig);
}
catch
{
}
}
}
}
if (runGraph)
{
// render source device on sample grabber
captureGraph.RenderStream(PinCategory.Capture, MediaType.Video, sourceBase, null, grabberBase);
// get media type
if (sampleGrabber.GetConnectedMediaType(mediaType) == 0)
{
VideoInfoHeader vih = (VideoInfoHeader)Marshal.PtrToStructure(mediaType.FormatPtr, typeof(VideoInfoHeader));
grabber.Width = vih.BmiHeader.Width;
grabber.Height = vih.BmiHeader.Height;
mediaType.Dispose( );
}
// get media control
mediaControl = (IMediaControl)graphObject;
// run
mediaControl.Run( );
while (!stopEvent.WaitOne(0, true))
{
Thread.Sleep(100);
if (needToDisplayPropertyPage)
{
needToDisplayPropertyPage = false;
try
{
// retrieve ISpecifyPropertyPages interface of the device
ISpecifyPropertyPages pPropPages = (ISpecifyPropertyPages)sourceObject;
// get property pages from the property bag
CAUUID caGUID;
pPropPages.GetPages(out caGUID);
// get filter info
FilterInfo filterInfo = new FilterInfo(deviceMoniker);
// create and display the OlePropertyFrame
Win32.OleCreatePropertyFrame(parentWindowForPropertyPage, 0, 0, filterInfo.Name, 1, ref sourceObject, caGUID.cElems, caGUID.pElems, 0, 0, IntPtr.Zero);
// release COM objects
Marshal.FreeCoTaskMem(caGUID.pElems);
}
catch
{
}
}
}
mediaControl.StopWhenReady( );
}
}
catch (Exception exception)
{
// provide information to clients
if (VideoSourceError != null)
{
VideoSourceError(this, new VideoSourceErrorEventArgs(exception.Message));
}
}
finally
{
// release all objects
captureGraph = null;
graph = null;
sourceBase = null;
grabberBase = null;
sampleGrabber = null;
mediaControl = null;
if (graphObject != null)
{
Marshal.ReleaseComObject(graphObject);
graphObject = null;
}
if (sourceObject != null)
{
Marshal.ReleaseComObject(sourceObject);
sourceObject = null;
}
if (grabberObject != null)
{
Marshal.ReleaseComObject(grabberObject);
grabberObject = null;
}
if (captureGraphObject != null)
{
Marshal.ReleaseComObject(captureGraphObject);
captureGraphObject = null;
}
}
if (PlayingFinished != null)
{
PlayingFinished(this, ReasonToFinishPlaying.StoppedByUser);
}
}
// Token: 0x0600003F RID: 63 RVA: 0x00002D24 File Offset: 0x00000F24
private void WorkerThread(bool runGraph)
{
ReasonToFinishPlaying reason = ReasonToFinishPlaying.StoppedByUser;
bool flag = false;
VideoCaptureDevice.Grabber grabber = new VideoCaptureDevice.Grabber(this, false);
VideoCaptureDevice.Grabber grabber2 = new VideoCaptureDevice.Grabber(this, true);
object obj = null;
object obj2 = null;
object obj3 = null;
object obj4 = null;
object obj5 = null;
ICaptureGraphBuilder2 captureGraphBuilder = null;
IFilterGraph2 filterGraph = null;
IBaseFilter baseFilter = null;
IBaseFilter baseFilter2 = null;
IBaseFilter baseFilter3 = null;
ISampleGrabber sampleGrabber = null;
ISampleGrabber sampleGrabber2 = null;
IAMVideoControl iamvideoControl = null;
IPin pin = null;
IAMCrossbar iamcrossbar = null;
try
{
Type typeFromCLSID = Type.GetTypeFromCLSID(Clsid.CaptureGraphBuilder2);
if (typeFromCLSID == null)
{
throw new ApplicationException("Failed creating capture graph builder");
}
obj = Activator.CreateInstance(typeFromCLSID);
captureGraphBuilder = (ICaptureGraphBuilder2)obj;
Type typeFromCLSID2 = Type.GetTypeFromCLSID(Clsid.FilterGraph);
if (typeFromCLSID2 == null)
{
throw new ApplicationException("Failed creating filter graph");
}
obj2 = Activator.CreateInstance(typeFromCLSID2);
filterGraph = (IFilterGraph2)obj2;
captureGraphBuilder.SetFiltergraph((IGraphBuilder)filterGraph);
this.sourceObject1 = FilterInfo.CreateFilter(this.deviceMoniker1);
if (this.sourceObject1 == null)
{
throw new ApplicationException("Failed creating device object for moniker");
}
baseFilter = (IBaseFilter)this.sourceObject1;
try
{
iamvideoControl = (IAMVideoControl)this.sourceObject1;
}
catch
{
}
Type typeFromCLSID3 = Type.GetTypeFromCLSID(Clsid.SampleGrabber);
if (typeFromCLSID3 == null)
{
throw new ApplicationException("Failed creating sample grabber");
}
obj3 = Activator.CreateInstance(typeFromCLSID3);
sampleGrabber = (ISampleGrabber)obj3;
baseFilter2 = (IBaseFilter)obj3;
obj4 = Activator.CreateInstance(typeFromCLSID3);
sampleGrabber2 = (ISampleGrabber)obj4;
baseFilter3 = (IBaseFilter)obj4;
filterGraph.AddFilter(baseFilter, "source");
filterGraph.AddFilter(baseFilter2, "grabber_video");
filterGraph.AddFilter(baseFilter3, "grabber_snapshot");
AMMediaType ammediaType = new AMMediaType();
ammediaType.MajorType = MediaType.Video1;
ammediaType.SubType = MediaSubType.RGB24;
sampleGrabber.SetMediaType(ammediaType);
sampleGrabber2.SetMediaType(ammediaType);
captureGraphBuilder.FindInterface(FindDirection.UpstreamOnly, Guid.Empty, baseFilter, typeof(IAMCrossbar).GUID, out obj5);
if (obj5 != null)
{
iamcrossbar = (IAMCrossbar)obj5;
}
this.isCrossbarAvailable1 = new bool?(iamcrossbar != null);
this.crossbarVideoInputs1 = this.ColletCrossbarVideoInputs(iamcrossbar);
if (iamvideoControl != null)
{
captureGraphBuilder.FindPin(this.sourceObject1, PinDirection.Output, PinCategory.StillImage, MediaType.Video1, false, 0, out pin);
if (pin != null)
{
VideoControlFlags videoControlFlags;
iamvideoControl.GetCaps(pin, out videoControlFlags);
flag = ((videoControlFlags & VideoControlFlags.ExternalTriggerEnable) > (VideoControlFlags)0);
}
}
sampleGrabber.SetBufferSamples(false);
sampleGrabber.SetOneShot(false);
sampleGrabber.SetCallback(grabber, 1);
sampleGrabber2.SetBufferSamples(true);
sampleGrabber2.SetOneShot(false);
sampleGrabber2.SetCallback(grabber2, 1);
this.GetPinCapabilitiesAndConfigureSizeAndRate(captureGraphBuilder, baseFilter, PinCategory.Capture, this.videoResolution1, ref this.videoCapabilities1);
if (flag)
{
this.GetPinCapabilitiesAndConfigureSizeAndRate(captureGraphBuilder, baseFilter, PinCategory.StillImage, this.snapshotResolution1, ref this.snapshotCapabilities1);
}
else
{
this.snapshotCapabilities1 = new VideoCapabilities[0];
}
Dictionary <string, VideoCapabilities[]> obj6 = VideoCaptureDevice.cacheVideoCapabilities1;
lock (obj6)
{
if (this.videoCapabilities1 != null && !VideoCaptureDevice.cacheVideoCapabilities1.ContainsKey(this.deviceMoniker1))
{
VideoCaptureDevice.cacheVideoCapabilities1.Add(this.deviceMoniker1, this.videoCapabilities1);
}
}
obj6 = VideoCaptureDevice.cacheSnapshotCapabilities1;
lock (obj6)
{
if (this.snapshotCapabilities1 != null && !VideoCaptureDevice.cacheSnapshotCapabilities1.ContainsKey(this.deviceMoniker1))
{
VideoCaptureDevice.cacheSnapshotCapabilities1.Add(this.deviceMoniker1, this.snapshotCapabilities1);
}
}
if (runGraph)
{
captureGraphBuilder.RenderStream(PinCategory.Capture, MediaType.Video1, baseFilter, null, baseFilter2);
if (sampleGrabber.GetConnectedMediaType(ammediaType) == 0)
{
VideoInfoHeader videoInfoHeader = (VideoInfoHeader)Marshal.PtrToStructure(ammediaType.FormatPtr, typeof(VideoInfoHeader));
grabber.Width = videoInfoHeader.BmiHeader.Width;
grabber.Height = videoInfoHeader.BmiHeader.Height;
ammediaType.Dispose();
}
if (flag && this.provideSnapshots1)
{
captureGraphBuilder.RenderStream(PinCategory.StillImage, MediaType.Video1, baseFilter, null, baseFilter3);
if (sampleGrabber2.GetConnectedMediaType(ammediaType) == 0)
{
VideoInfoHeader videoInfoHeader2 = (VideoInfoHeader)Marshal.PtrToStructure(ammediaType.FormatPtr, typeof(VideoInfoHeader));
grabber2.Width = videoInfoHeader2.BmiHeader.Width;
grabber2.Height = videoInfoHeader2.BmiHeader.Height;
ammediaType.Dispose();
}
}
IMediaControl mediaControl = (IMediaControl)obj2;
IMediaEventEx mediaEventEx = (IMediaEventEx)obj2;
mediaControl.Run();
if (flag && this.provideSnapshots1)
{
this.startTime1 = DateTime.Now;
iamvideoControl.SetMode(pin, VideoControlFlags.ExternalTriggerEnable);
}
for (;;)
{
DsEvCode dsEvCode;
IntPtr lParam;
IntPtr lParam2;
if (mediaEventEx != null && mediaEventEx.GetEvent(out dsEvCode, out lParam, out lParam2, 0) >= 0)
{
mediaEventEx.FreeEventParams(dsEvCode, lParam, lParam2);
if (dsEvCode == DsEvCode.DeviceLost)
{
break;
}
}
if (this.needToSetVideoInput1)
{
this.needToSetVideoInput1 = false;
if (this.isCrossbarAvailable1.Value)
{
this.SetCurrentCrossbarInput(iamcrossbar, this.crossbarVideoInput1);
this.crossbarVideoInput1 = this.GetCurrentCrossbarInput(iamcrossbar);
}
}
if (this.needToSimulateTrigger1)
{
this.needToSimulateTrigger1 = false;
if (flag && this.provideSnapshots1)
{
iamvideoControl.SetMode(pin, VideoControlFlags.Trigger);
}
}
if (this.needToDisplayPropertyPage1)
{
this.needToDisplayPropertyPage1 = false;
this.DisplayPropertyPage(this.parentWindowForPropertyPage1, this.sourceObject1);
if (iamcrossbar != null)
{
this.crossbarVideoInput1 = this.GetCurrentCrossbarInput(iamcrossbar);
}
}
if (this.needToDisplayCrossBarPropertyPage1)
{
this.needToDisplayCrossBarPropertyPage1 = false;
if (iamcrossbar != null)
{
this.DisplayPropertyPage(this.parentWindowForPropertyPage1, iamcrossbar);
this.crossbarVideoInput1 = this.GetCurrentCrossbarInput(iamcrossbar);
}
}
if (this.stopEvent1.WaitOne(100, false))
{
goto IL_54E;
}
}
reason = ReasonToFinishPlaying.DeviceLost;
IL_54E:
mediaControl.Stop1();
}
}
catch (Exception ex)
{
if (this.VideoSourceError != null)
{
this.VideoSourceError(this, new VideoSourceErrorEventArgs(ex.Message));
}
}
finally
{
captureGraphBuilder = null;
filterGraph = null;
baseFilter = null;
iamvideoControl = null;
pin = null;
iamcrossbar = null;
baseFilter2 = null;
baseFilter3 = null;
sampleGrabber = null;
sampleGrabber2 = null;
if (obj2 != null)
{
Marshal.ReleaseComObject(obj2);
obj2 = null;
}
if (this.sourceObject1 != null)
{
Marshal.ReleaseComObject(this.sourceObject1);
this.sourceObject1 = null;
}
if (obj3 != null)
{
Marshal.ReleaseComObject(obj3);
obj3 = null;
}
if (obj4 != null)
{
Marshal.ReleaseComObject(obj4);
obj4 = null;
}
if (obj != null)
{
Marshal.ReleaseComObject(obj);
obj = null;
}
if (obj5 != null)
{
Marshal.ReleaseComObject(obj5);
obj5 = null;
}
}
if (this.PlayingFinished != null)
{
this.PlayingFinished(this, reason);
}
}
