// New video device is selected
private void devicesCombo_SelectedIndexChanged( object sender, EventArgs e )
{
if ( videoDevices.Count != 0 )
{
videoDevice = new VideoCaptureDevice( videoDevices[devicesCombo.SelectedIndex].MonikerString );
EnumeratedSupportedFrameSizes( videoDevice );
}
}
// Open local video capture device
private void localVideoCaptureDeviceToolStripMenuItem_Click(object sender, EventArgs e)
{
VideoCaptureDeviceForm form = new VideoCaptureDeviceForm();
if (form.ShowDialog(this) == DialogResult.OK)
{
// create video source
VideoCaptureDevice videoSource = new VideoCaptureDevice(form.VideoDevice);
// open it
OpenVideoSource(videoSource);
}
}
private void btnSelectCamera_Click(object sender, EventArgs e)
{
VideoCaptureDeviceForm form = new VideoCaptureDeviceForm();
if (form.ShowDialog() == DialogResult.OK)
{
VideoCaptureDevice device = new VideoCaptureDevice(form.VideoDevice);
device.VideoResolution = selectResolution(device);
controller.Device = device;
controller.Start();
toolStripStatusLabel1.Text = "Initializing...";
}
}
private static VideoCapabilities selectResolution(VideoCaptureDevice device)
{
foreach (var cap in device.VideoCapabilities)
{
if (cap.FrameSize.Height == 240)
return cap;
if (cap.FrameSize.Width == 320)
return cap;
}
return device.VideoCapabilities.Last();
}
// Start cameras
private void StartCameras()
{
// create first video source
var videoSource1 = new VideoCaptureDevice(videoDevices[camera1Combo.SelectedIndex].MonikerString);
// videoSource1.DesiredFrameRate = 10;
videoSourcePlayer1.VideoSource = videoSource1;
videoSourcePlayer1.Start();
// create second video source
if (camera2Combo.Enabled == true)
{
System.Threading.Thread.Sleep(500);
var videoSource2 = new VideoCaptureDevice(videoDevices[camera2Combo.SelectedIndex].MonikerString);
// videoSource2.DesiredFrameRate = 10;
videoSourcePlayer2.VideoSource = videoSource2;
videoSourcePlayer2.Start();
}
// reset stop watch
stopWatch = null;
// start timer
timer.Start();
}
// Collect supported video and snapshot sizes
private void EnumeratedSupportedFrameSizes(VideoCaptureDevice videoDevice)
{
this.Cursor = Cursors.WaitCursor;
videoResolutionsCombo.Items.Clear();
snapshotResolutionsCombo.Items.Clear();
videoInputsCombo.Items.Clear();
videoCapabilitiesDictionary.Clear();
snapshotCapabilitiesDictionary.Clear();
try
{
// collect video capabilities
VideoCapabilities[] videoCapabilities = videoDevice.VideoCapabilities;
int videoResolutionIndex = 0;
foreach (VideoCapabilities capabilty in videoCapabilities)
{
string item = string.Format(
"{0} x {1}", capabilty.FrameSize.Width, capabilty.FrameSize.Height);
if (!videoResolutionsCombo.Items.Contains(item))
{
if (captureSize == capabilty.FrameSize)
{
videoResolutionIndex = videoResolutionsCombo.Items.Count;
}
videoResolutionsCombo.Items.Add(item);
}
if (!videoCapabilitiesDictionary.ContainsKey(item))
{
videoCapabilitiesDictionary.Add(item, capabilty);
}
}
if (videoCapabilities.Length == 0)
{
videoResolutionsCombo.Items.Add("Not supported");
}
videoResolutionsCombo.SelectedIndex = videoResolutionIndex;
if (configureSnapshots)
{
// collect snapshot capabilities
VideoCapabilities[] snapshotCapabilities = videoDevice.SnapshotCapabilities;
int snapshotResolutionIndex = 0;
foreach (VideoCapabilities capabilty in snapshotCapabilities)
{
string item = string.Format(
"{0} x {1}", capabilty.FrameSize.Width, capabilty.FrameSize.Height);
if (!snapshotResolutionsCombo.Items.Contains(item))
{
if (snapshotSize == capabilty.FrameSize)
{
snapshotResolutionIndex = snapshotResolutionsCombo.Items.Count;
}
snapshotResolutionsCombo.Items.Add(item);
snapshotCapabilitiesDictionary.Add(item, capabilty);
}
}
if (snapshotCapabilities.Length == 0)
{
snapshotResolutionsCombo.Items.Add("Not supported");
}
snapshotResolutionsCombo.SelectedIndex = snapshotResolutionIndex;
}
// get video inputs
availableVideoInputs = videoDevice.AvailableCrossbarVideoInputs;
int videoInputIndex = 0;
foreach (VideoInput input in availableVideoInputs)
{
string item = string.Format("{0}: {1}", input.Index, input.Type);
if ((input.Index == videoInput.Index) && (input.Type == videoInput.Type))
{
videoInputIndex = videoInputsCombo.Items.Count;
}
videoInputsCombo.Items.Add(item);
}
if (availableVideoInputs.Length == 0)
{
videoInputsCombo.Items.Add("Not supported");
}
videoInputsCombo.SelectedIndex = videoInputIndex;
}
finally
{
this.Cursor = Cursors.Default;
}
}
// Constructor
public Grabber(VideoCaptureDevice parent, bool snapshotMode, PixelFormat pixelFormat = PixelFormat.Format24bppRgb)
{
this.parent = parent;
this.snapshotMode = snapshotMode;
this.pixelFormat = pixelFormat;
}
// Collect supported video and snapshot sizes
private void EnumeratedSupportedFrameSizes( VideoCaptureDevice videoDevice )
{
this.Cursor = Cursors.WaitCursor;
videoResolutionsCombo.Items.Clear( );
snapshotResolutionsCombo.Items.Clear( );
try
{
videoCapabilities = videoDevice.VideoCapabilities;
snapshotCapabilities = videoDevice.SnapshotCapabilities;
foreach ( VideoCapabilities capabilty in videoCapabilities )
{
videoResolutionsCombo.Items.Add( string.Format( "{0} x {1}",
capabilty.FrameSize.Width, capabilty.FrameSize.Height ) );
}
foreach ( VideoCapabilities capabilty in snapshotCapabilities )
{
snapshotResolutionsCombo.Items.Add( string.Format( "{0} x {1}",
capabilty.FrameSize.Width, capabilty.FrameSize.Height ) );
}
if ( videoCapabilities.Length == 0 )
{
videoResolutionsCombo.Items.Add( "Not supported" );
}
if ( snapshotCapabilities.Length == 0 )
{
snapshotResolutionsCombo.Items.Add( "Not supported" );
}
videoResolutionsCombo.SelectedIndex = 0;
snapshotResolutionsCombo.SelectedIndex = 0;
}
finally
{
this.Cursor = Cursors.Default;
}
}