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The MarkOut property sets and retrieves the end point of a media stream, in milliseconds (ms), from the start of the original stream.
Syntax
IWMEncSource.MarkOut = Long
Long = IWMEncSource.MarkOut
Parameters
This property takes no parameters.
Property Value
A Long that indicates the end point of the stream.
If this property fails, it returns an error number.
| Number | Description |
| 0xC00D1B59 | The specified ending point is either less than 0 or less than the starting point. |
| 0xC00D0011 | This property cannot be set if the encoder engine is running. |
| 0xC00D002B | You must index the Windows Media file before setting this property. |
Example Code
' Create a WMEncoder object.
Dim Encoder As WMEncoder
Set Encoder = New WMEncoder
' Declare objects and variables.
Dim SrcGrpColl As IWMEncSourceGroupCollection
Dim SrcGrp As IWMEncSourceGroup
Dim SrcAud As IWMEncSource
Dim SrcVid As IWMEncVideoSource
Dim ProColl As IWMEncProfileCollection
Dim Pro As IWMEncProfile
Dim i As Integer
' Create an IWMEncSourceGroupCollection object.
Set SrcGrpColl = Encoder.SourceGroupCollection
' Create an IWMEncSourceGroup object.
Set SrcGrp = SrcGrpColl.Add("SG_1")
' Create an audio and a video source object.
Set SrcAud = SrcGrp.AddSource(WMENC_AUDIO)
Set SrcVid = SrcGrp.AddSource(WMENC_VIDEO)
' Loop through the collection of system profiles to set
' a specific profile into the source group object.
Set ProColl = Encoder.ProfileCollection
For i = 0 To ProColl.Count - 1
Set Pro = ProColl.Item(i)
If Pro.Name = "Windows Media Video 8 for Local Area Network (384 Kbps)") Then
SrcGrp.Profile = Pro
Exit For
End If
Next
' Specify live stream capture from the installed video
' and audio cards.
SrcVid.SetInput "DEVICE://Default_Video_Device"
SrcAud.SetInput("Device://Default_Audio_Device")
' Verify that the repeat property is turned off. This is
' the default.
SrcVid.Repeat = False
SrcAud.Repeat = False
' Start the encoding process 10 seconds after the source
' has started, and stop the encoding process 25 seconds
' after the source has started.
SrcVid.MarkIn = 10000
SrcAud.MarkIn = 10000
SrcVid.MarkOut = 25000
SrcAud.MarkOut = 25000
' Start the encoding process.
SrcGrp.PrepareToEncode (True)
Requirements
Reference: Windows Media Encoder
Library: wmenc.exe
See Also