public virtual bool UsingDVDecoder { get; }
Public Overridable ReadOnly Property UsingDVDecoder As Boolean
public:
virtual property bool UsingDVDecoder {
bool get();
}
true if the DV decoder is being used; false, otherwise.
If the DV decoder is used, you can change the size of the preview using the DVDecoderResolution property.
using Leadtools;
using Leadtools.Multimedia;
using LeadtoolsMultimediaExamples.Fixtures;
public bool _result = false;
public CaptureCtrlForm _form = new CaptureCtrlForm();
public void UsingDVDecoderExample()
{
// reference the capture control
CaptureCtrl capturectrl = _form.CaptureCtrl;
// output file
string outFile = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_UsingDVDecoderExample.avi");
try
{
// set the video capture device, use your capture device name here
if (capturectrl.VideoDevices["USB"] == null)
throw new Exception("No USB video device available");
capturectrl.VideoDevices["USB"].Selected = true;
// try to find a USB audio device
if (capturectrl.AudioDevices["USB"] == null)
throw new Exception("No USB audio device available");
capturectrl.AudioDevices["USB"].Selected = true;
// set the video and audio compressors
capturectrl.VideoCompressors.DVVideo.Selected = true;
capturectrl.AudioCompressors.AC3.Selected = true;
// set the target output file and format
capturectrl.TargetFile = outFile;
// set the target output format
capturectrl.TargetFormat = TargetFormatType.DVSDAVI;
// check to see whether we have a video compressor dialog and show it
if (capturectrl.HasDialog(CaptureDlg.VideoCompressor))
capturectrl.ShowDialog(CaptureDlg.VideoCompressor, _form);
// check whether we can capture video and audio
if (capturectrl.IsModeAvailable(CaptureMode.VideoAndAudio))
{
// ready the capture graph
capturectrl.ReadyCapture(CaptureMode.VideoAndAudio | CaptureMode.InhibitRun);
// check to see whether we are using the DVDecoder
if (capturectrl.UsingDVDecoder)
{
// set the DV resolution to full
capturectrl.DVDecoderResolution = DVResolution.Full;
// set the result
_result = true;
}
capturectrl.FrameRate = 5; // 5 frames per second
capturectrl.UseFrameRate = true;
capturectrl.TimeLimit = 10; // just 10 seconds of capture time
capturectrl.UseTimeLimit = true;
// start the capture process
capturectrl.StartCapture(CaptureMode.VideoAndAudio);
}
// we'll loop on the state and pump messages for this example.
// but you should not need to if running from a Windows Forms application.
while (capturectrl.State == CaptureState.Running)
Application.DoEvents();
}
catch (Exception)
{
_result = false;
}
}
static class LEAD_VARS
{
public const string MediaDir = @"C:\LEADTOOLS21\Media";
}
Imports Leadtools
Imports Leadtools.Multimedia
Imports LeadtoolsMultimediaExamples.Fixtures
Public _result As Boolean = False
Public _form As CaptureCtrlForm = New CaptureCtrlForm()
Public Sub UsingDVDecoderExample()
' reference the capture control
Dim capturectrl As CaptureCtrl = _form.CaptureCtrl
' output file
Dim outFile As String = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_UsingDVDecoderExample.avi")
Try
' set the video capture device, use your capture device name here
If capturectrl.VideoDevices("USB") Is Nothing Then
Throw New Exception("No USB video device available")
End If
capturectrl.VideoDevices("USB").Selected = True
' try to find a USB audio device
If capturectrl.AudioDevices("USB") Is Nothing Then
Throw New Exception("No USB audio device available")
End If
capturectrl.AudioDevices("USB").Selected = True
' set the video and audio compressors
capturectrl.VideoCompressors.DVVideo.Selected = True
capturectrl.AudioCompressors.AC3.Selected = True
' set the target output file and format
capturectrl.TargetFile = outFile
' set the target output format
capturectrl.TargetFormat = TargetFormatType.DVSDAVI
' check to see if we have a video compressor dialog and show it
If capturectrl.HasDialog(CaptureDlg.VideoCompressor) Then
capturectrl.ShowDialog(CaptureDlg.VideoCompressor, _form)
End If
' check if we have can capture video and audio
If capturectrl.IsModeAvailable(CaptureMode.VideoAndAudio) Then
' ready the capture graph
capturectrl.ReadyCapture(CaptureMode.VideoAndAudio Or CaptureMode.InhibitRun)
' check to see if we are using the DVDecoder
If capturectrl.UsingDVDecoder Then
' set the DV resolution to full
capturectrl.DVDecoderResolution = DVResolution.Full
' set the result
_result = True
End If
capturectrl.FrameRate = 5 ' 5 frames per second
capturectrl.UseFrameRate = True
capturectrl.TimeLimit = 10 ' just 10 seconds of capture time
capturectrl.UseTimeLimit = True
' start the capture process
capturectrl.StartCapture(CaptureMode.VideoAndAudio)
End If
' we'll loop on the state and pump messages for this example.
' but you should not need to if running from a Windows Forms application.
Do While capturectrl.State = CaptureState.Running
Application.DoEvents()
Loop
Catch e1 As Exception
_result = False
End Try
End Sub
Public NotInheritable Class LEAD_VARS
Public Const MediaDir As String = "C:\LEADTOOLS21\Media"
End Class
Help Collections
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