public override void Start()
{
if (moduleInfo.Args().Length == 0 || moduleInfo.Args()[0].Equals(""))
{
ListAvailableCameras();
return;
}
cameraStr = moduleInfo.Args()[0];
_frameSource = FindConnectedCamera(cameraStr);
if (_frameSource != null)
{
InitCamera(_frameSource);
}
else
{
logger.Log("Camera matching {0} not found", cameraStr);
ListAvailableCameras();
logger.Log("Will keep looking");
}
cameraSearchTimer = new Timer(PeriodicCameraSearch, null, (int) SearchPeriod.TotalMilliseconds, (int) SearchPeriod.TotalMilliseconds);
imageServer = new WebFileServer(moduleInfo.BinaryDir(), moduleInfo.BaseURL(), logger);
}
private void InitCamera(CameraFrameSource frameSource)
{
logger.Log("Init-ing camera {0}", _frameSource.Camera.ToString());
//add the camera service port if we haven't done that already
if (cameraPort == null)
{
VPortInfo pInfo = GetPortInfoFromPlatform("webcam - " + cameraStr);
List<VRole> roles = new List<VRole>() { RoleCamera.Instance };
cameraPort = InitPort(pInfo);
BindRoles(cameraPort, roles, OnOperationInvoke);
RegisterPortWithPlatform(cameraPort);
}
SafeThread worker = new SafeThread(delegate() { GetVideo(); }, "DriverWebCam-GetVideo", logger);
worker.Start();
}
private void setFrameSource(CameraFrameSource cameraFrameSource)
{
if (_frameSource == cameraFrameSource)
return;
_frameSource = cameraFrameSource;
}
public override void Start()
{
if (moduleInfo.Args().Length == 0 || moduleInfo.Args()[0].Equals(""))
{
ListAvailableCameras();
return;
}
string cameraStr = moduleInfo.Args()[0];
foreach (Camera camera in CameraService.AvailableCameras)
{
//if (camera.ToString().ToLower().Contains(cameraStr))
//{
// _frameSource = new CameraFrameSource(camera);
// break;
//}
if (cameraStr.ToLower().Contains(camera.ToString().ToLower()))
{
_frameSource = new CameraFrameSource(camera);
break;
}
}
if (_frameSource == null)
{
logger.Log("Camera matching {0} not found", cameraStr);
ListAvailableCameras();
return;
}
logger.Log("Will use camera {0}", _frameSource.Camera.ToString());
//add the camera service port
VPortInfo pInfo = GetPortInfoFromPlatform("webcam - " + cameraStr);
List<VRole> roles = new List<VRole>() {RoleCamera.Instance};
cameraPort = InitPort(pInfo);
BindRoles(cameraPort, roles, OnOperationInvoke);
RegisterPortWithPlatform(cameraPort);
worker = new SafeThread(delegate()
{
GetVideo();
}, "DriverWebCam-GetVideo", logger);
worker.Start();
imageServer = new WebFileServer(moduleInfo.BinaryDir(), moduleInfo.BaseURL(), logger);
}
private void PeriodicCameraSearch(object state)
{
try
{
//search only if we haven't received a frame in a while
if (DateTime.Now - _latestFrameTime > SearchPeriod)
{
if (cameraPort != null)
{
ForgetCamera();
}
_frameSource = FindConnectedCamera(cameraStr);
if (_frameSource != null)
{
InitCamera(_frameSource);
}
}
}
catch (Exception e)
{
logger.Log("Exception during camera search: " + e.ToString());
}
}
private void ForgetCamera()
{
DeregisterPortWithPlatform(cameraPort);
cameraPort = null;
if (_frameSource != null && _frameSource.Camera != null)
_frameSource.Camera.Dispose();
_frameSource = null;
}
