/// <summary>
/// Connects pins of graph
/// </summary>
private void GraphBuilding_ConnectPins()
{
// Pins used in graph
IPin pinSourceCapture = null;
IPin pinSampleGrabberInput = null;
int hr = 0;
try
{
// Collect pins
//pinSourceCapture = DsFindPin.ByCategory(DX.CaptureFilter, PinCategory.Capture, 0);
pinSourceCapture = DsFindPin.ByDirection(DX.CaptureFilter, PinDirection.Output, 0);
pinSampleGrabberInput = DsFindPin.ByDirection(DX.SampleGrabberFilter, PinDirection.Input, 0);
// Connect source to tee splitter
hr = DX.FilterGraph.Connect(pinSourceCapture, pinSampleGrabberInput);
DsError.ThrowExceptionForHR(hr);
}
catch
{
throw;
}
finally
{
CameraHelpers.SafeReleaseComObject(pinSourceCapture);
pinSourceCapture = null;
CameraHelpers.SafeReleaseComObject(pinSampleGrabberInput);
pinSampleGrabberInput = null;
}
}
/// <summary>
/// Adds video source filter to the filter graph.
/// </summary>
private void GraphBuilding_AddFilter_Source()
{
int hr = 0;
DX.CaptureFilter = null;
hr = DX.FilterGraph.AddSourceFilterForMoniker(_Moniker, null, "Source Filter", out DX.CaptureFilter);
DsError.ThrowExceptionForHR(hr);
_ResolutionList = CameraHelpers.GetResolutionsAvailable(DX.CaptureFilter);
}
/// <summary>
/// Displays property page for filter's pin output.
/// </summary>
/// <param name="hwndOwner">The window handler for to make it parent of property page.</param>
public void DisplayPropertyPage_SourcePinOutput(IntPtr hwndOwner)
{
IPin pinSourceCapture = null;
try
{
pinSourceCapture = DsFindPin.ByDirection(DX.CaptureFilter, PinDirection.Output, 0);
CameraHelpers.DisplayPropertyPagePin(pinSourceCapture, hwndOwner);
}
catch (Exception)
{
throw;
}
finally
{
CameraHelpers.SafeReleaseComObject(pinSourceCapture);
pinSourceCapture = null;
}
}
// ====================================================================
#region Graph building stuff
/// <summary>
/// Sets the Framerate, and video size.
/// </summary>
private void GraphBuilding_SetSourceParams()
{
// Pins used in graph
IPin pinSourceCapture = null;
try
{
// Collect pins
//pinSourceCapture = DsFindPin.ByCategory(DX.CaptureFilter, PinCategory.Capture, 0);
pinSourceCapture = DsFindPin.ByDirection(DX.CaptureFilter, PinDirection.Output, 0);
CameraHelpers.SetSourceParams(pinSourceCapture, _Resolution);
}
catch
{
throw;
}
finally
{
CameraHelpers.SafeReleaseComObject(pinSourceCapture);
pinSourceCapture = null;
}
}
/// <summary>
/// Returns available resolutions with RGB color system for device moniker.
/// </summary>
/// <param name="moniker">Moniker (device identification) of camera.</param>
/// <returns>List of resolutions with RGB color system of device</returns>
public static ResolutionList GetResolutionList(IMoniker moniker)
{
return(CameraHelpers.GetResolutionList(moniker));
}
// ====================================================================
#region Public Static functions
/// <summary>
/// Returns Moniker (device identification) of camera from device index.
/// </summary>
/// <param name="iDeviceIndex">Index (Zero-based) in list of available devices with VideoInputDevice filter category.</param>
/// <returns>Moniker (device identification) of device</returns>
public static IMoniker GetDeviceMoniker(int iDeviceNum)
{
return(CameraHelpers.GetDeviceMoniker(iDeviceNum));
}
// ====================================================================
#region Property pages (various settings dialogs)
/// <summary>
/// Displays property page for device.
/// </summary>
/// <param name="moniker">Moniker (device identification) of camera.</param>
/// <param name="hwndOwner">The window handler for to make it parent of property page.</param>
/// <seealso cref="Moniker"/>
public static void DisplayPropertyPage_Device(IMoniker moniker, IntPtr hwndOwner)
{
CameraHelpers.DisplayPropertyPage_Device(moniker, hwndOwner);
}
/// <summary>
/// Displays property page for capture filter.
/// </summary>
/// <param name="hwndOwner">The window handler for to make it parent of property page.</param>
public void DisplayPropertyPage_CaptureFilter(IntPtr hwndOwner)
{
CameraHelpers.DisplayPropertyPageFilter(DX.CaptureFilter, hwndOwner);
}