Gets the capture stream type.
public virtual string VideoCaptureStreamType { get; }
Public Overridable ReadOnly Property VideoCaptureStreamType As String
public:
virtual property String^ VideoCaptureStreamType {
String^ get();
}
MEDIATYPE_Stream | The stream is a byte stream with no time stamps(for example, a hardware compressed stream). |
MEDIATYPE_Interleaved | The stream type is interleaved (for example, a stream used by Digital Video (DV)). |
MEDIATYPE_Video | The stream type is video. |
The string referenced contains a formatted Globally Unique Identifier (GUID) of the form {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}. For more information on media types, refer to MediaType.
using Leadtools;
using Leadtools.Multimedia;
using LeadtoolsMultimediaExamples.Fixtures;
public bool _result = false;
public CaptureCtrlForm _form = new CaptureCtrlForm();
public void CaptureSubTypesExample()
{
string name, friendlyName;
int selection;
// reference the capture control
CaptureCtrl capturectrl = _form.CaptureCtrl;
// select a video device, use your device's name here instead of Analog
if (capturectrl.VideoDevices["Analog"] == null)
throw new Exception("No Analog video tuner device available");
capturectrl.VideoDevices["Analog"].Selected = true;
// get the audio inputs object
CaptureSubTypes subTypes = capturectrl.VideoCaptureSubTypes;
// save the current subtype selection
selection = subTypes.Selection;
try
{
// select an capture subtype by name for MPEG2Video if available
if (subTypes[Constants.MEDIASUBTYPE_MPEG2Video] != null
&& capturectrl.VideoCaptureStreamType == Constants.MEDIATYPE_Stream)
{
subTypes[Constants.MEDIASUBTYPE_MPEG2Video].Selected = true;
}
else // else try YUY2
if (subTypes[Constants.MEDIASUBTYPE_YUY2] != null)
{
subTypes[Constants.MEDIASUBTYPE_YUY2].Selected = true;
}
foreach (CaptureSubType cst in subTypes)
{
// get the subtype properties
name = cst.Name;
friendlyName = cst.FriendlyName;
// if we found the video tuner input
if (friendlyName == "YUY2")
{
// select it and break
cst.Selected = true;
break;
}
}
// set the result to what we expect
_result = (selection == subTypes.Selection);
}
catch (Exception)
{
_result = false;
}
}
Imports Leadtools
Imports Leadtools.Multimedia
Imports LeadtoolsMultimediaExamples.Fixtures
Public _result As Boolean = False
Public _form As CaptureCtrlForm = New CaptureCtrlForm()
Public Sub CaptureSubTypesExample()
Dim name, friendlyName As String
Dim selection As Integer
' reference the capture control
Dim capturectrl As CaptureCtrl = _form.CaptureCtrl
' select a video device, use your device name here instead of Analog
If capturectrl.VideoDevices("Analog") Is Nothing Then
Throw New Exception("No Analog video tuner device available")
End If
capturectrl.VideoDevices("Analog").Selected = True
' get the audio inputs object
Dim subTypes As CaptureSubTypes = capturectrl.VideoCaptureSubTypes
' save the current subtype selection
selection = subTypes.Selection
Try
' select an capture subtype by name for MPEG2Video if available
If Not subTypes(Leadtools.Multimedia.Constants.MEDIASUBTYPE_MPEG2Video) Is Nothing AndAlso capturectrl.VideoCaptureStreamType = Leadtools.Multimedia.Constants.MEDIATYPE_Stream Then
subTypes(Leadtools.Multimedia.Constants.MEDIASUBTYPE_MPEG2Video).Selected = True
Else ' else try YUY2
If Not subTypes(Leadtools.Multimedia.Constants.MEDIASUBTYPE_YUY2) Is Nothing Then
subTypes(Leadtools.Multimedia.Constants.MEDIASUBTYPE_YUY2).Selected = True
End If
End If
For Each cst As CaptureSubType In subTypes
' get the subtype properties
name = cst.Name
friendlyName = cst.FriendlyName
' if we found the video tuner input
If friendlyName = "YUY2" Then
' select it and break
cst.Selected = True
Exit For
End If
Next cst
' set the result to what we expect
_result = (selection = subTypes.Selection)
Catch e1 As Exception
_result = False
End Try
End Sub
Help Collections
Raster .NET | C API | C++ Class Library | HTML5 JavaScript
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Medical .NET | C API | C++ Class Library | HTML5 JavaScript
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Multimedia
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Media Foundation .NET | C API | Transforms
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Imaging, Medical, and Document
C API/C++ Class Libraries
Imaging, Medical, and Document
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