WMEncoder.RecordingMute

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The RecordingMute property specifies and retrieves a Boolean value indicating whether a specific audio stream is muted.

Syntax

WMEncoder.RecordingMute(iIndex) = Boolean
Boolean = WMEncoder.RecordingMute(iIndex)

Parameters

iIndex

[in]  Integer containing the index of the audio stream.

Property Value

A Boolean that indicates whether the audio stream is muted.

If this property fails, it returns an error number.

Number Description
0x80070057 The index is not valid.

Remarks

You must set the iIndex parameter to 0 because multiple audio streams are not currently supported.

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

' 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)

' Specify the .avi source file.
SrcAud.SetInput "C:\filename.avi"
SrcVid.SetInput "C:\filename.avi"

' Determine whether the audio stream is muted. If it is not
' muted, then mute it.
Dim bRecordMute As Boolean
bRecordMute = Encoder.RecordingMute(0)
If bRecordMute = False Then
    Encoder.RecordingMute(0) = True
End If

Requirements

Reference: Windows Media Encoder

Library: wmenc.exe

See Also