// 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);
}
}
