public override void StopSource()
{
quitNum++;
isActive = false;
if (webCam != null)
{
webCam.Stop();
webCam = null;
}
}
public override bool StartSource(string preferedCameraMoniker)
{
quitNum++;
if (WebCam.CameraCount > 0)
{
SetupProfile();
MultipleCameraSelector mcs = new MultipleCameraSelector(cameraTitles, WebCam.AvailableWebCamMonikers);
mcs.ShowDialog();
string[] cameraSelections = mcs.SelectedCameras;
if (cameraSelections == null)
{
return(false);
}
frames = new Bitmap[cameraSelections.Length];
videoSizes = new Size[cameraSelections.Length];
for (int i = 0; i < cameraSelections.Length; i++)
{
frames[i] = null;
videoSizes[i] = Size.Empty;
}
cameraWatch = new Thread(new ThreadStart(CameraWatcher));
cameraWatch.Start();
webCams = new WebCam[cameraSelections.Length];
for (int i = 0; i < webCams.Length; i++)
{
webCams[i] = new WebCam(cameraSelections[i], parentForm);
webCams[i].CaptureDeviceVideoInputSizeDetermined += new VideoInputSizeDetermined(CMSMultipleWebcamSource_CaptureDeviceVideoInputSizeDetermined);
webCams[i].NewFrame += new WebCamEventHandler(CMSMultipleWebcamSource_NewFrame);
webCams[i].Start();
}
return(true);
}
else
{
return(false);
}
}
public override bool StartSource(string preferedCameraMoniker)
{
lock (mutex)
{
quitNum++;
isActive = true;
cameraWatch = new Thread(new ThreadStart(CameraWatcher));
cameraWatch.Start();
if (webCam != null)
{
webCam.Stop();
webCam = null;
}
if (WebCam.CameraCount > 0)
{
if (preferedCameraMoniker != null && preferedCameraMoniker.Length > 0 &&
WebCam.GetFilter(preferedCameraMoniker) == null)
{
preferedCameraMoniker = null;
}
if (WebCam.CameraCount == 1)
{
preferedCameraMoniker = WebCam.AvailableWebCamMonikers[0].Moniker;
}
else if (preferedCameraMoniker == null || preferedCameraMoniker.Length == 0)
{
CameraSelector cs = new CameraSelector(WebCam.AvailableWebCamMonikers);
cs.ShowDialog();
preferedCameraMoniker = cs.SelectedCamera;
}
webCam = new WebCam(preferedCameraMoniker, parentForm);
webCam.CaptureDeviceVideoInputSizeDetermined += videoInputSizeDeterminedFunc;
webCam.NewFrame += new WebCamEventHandler(webCam_NewFrame);
webCam.Start();
cameraCount = WebCam.CameraCount;
currentMonikor = preferedCameraMoniker;
return(true);
}
return(false);
}
}
private void CameraWatcher()
{
bool firstTime = true;
int lastCount = 0;
int curQuitNum = quitNum;
try
{
while (curQuitNum == quitNum)
{
if (isActive)
{
bool bCameraLost = false;
bool bCameraFound = false;
int count;
lock (mutex)
{
if (firstTime)
{
firstTime = false;
lastCount = WebCam.CameraCount;
}
count = WebCam.CameraCount;
if (count < lastCount)
{
if (count > 0)
{
bool sourceStillPluggedIn = false;
foreach (WebCamDescription monikor in WebCam.AvailableWebCamMonikers)
{
if (monikor.Moniker.Equals(currentMonikor))
{
sourceStillPluggedIn = true;
break;
}
}
if (sourceStillPluggedIn)
{
Thread.Sleep(500);
continue;
}
}
if (webCam != null)
{
webCam.Stop();
webCam = null;
}
bCameraLost = true;
}
else if (lastCount == 0 && count > 0)
{
bCameraFound = true;
}
}
if (bCameraLost)
{
CameraLostFunc(count > 0);
}
if (bCameraFound)
{
CameraFoundFunc();
}
lastCount = count;
}
else
{
firstTime = true;
}
Thread.Sleep(500);
}
}
catch (Exception e)
{
}
}
