IWMSActiveStream.BitRate (Visual Basic .NET)

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IWMSActiveStream.BitRate (Visual Basic .NET)

The BitRate property retrieves the maximum bit rate of a stream.

Syntax

  Integer = IWMSActiveStream.BitRate

Property Value

Integer that contains the maximum bit rate of the stream.

Remarks

This property is read-only. Optimizing codecs encode streams at variable bit rates. Complex items in the stream require a higher bit rate to be properly rendered by the client.

Example Code

Imports Microsoft.WindowsMediaServices.Interop
Imports System.Runtime.InteropServices

Private Sub GetMaxBitRate()

    ' Declare variables.
    Dim Server As WMSServer
    Dim Players As IWMSPlayers
    Dim Player As IWMSPlayer
    Dim Playlist As IWMSPlaylist
    Dim ActiveMedia As IWMSActiveMedia
    Dim ActiveStreams As IWMSActiveStreams
    Dim ActiveStream As IWMSActiveStream
    Dim iBitRate As Integer

Try
    ' Create the WMSServer object.
    Server = New WMSServer()

    ' Retrieve the IWMSPlayers object.
    Players = Server.Players

    ' If players are connected, retrieve first IWMSPlayer object
    ' in the IWMSPlayers collection.
    If Server.Players.Count > 0 Then
        Player = Server.Players.Item(0)
    End If

    ' Retrieve the IWMSPlaylist object for the player.
    ' NOTE: A valid playlist file is not always returned.
    ' This may be the case, for example, if the user requested
    ' a specific content file or if a broadcast
    ' publishing point is being used.
    Playlist = Player.RequestedPlaylist
    If Not Playlist Is Nothing Then

        ' Retrieve the IWMSActiveMedia object.
        ActiveMedia = Playlist.CurrentMediaInformation

        ' Retrieve the IWMSActiveStreams object.
        ActiveStreams = ActiveMedia.Streams

        ' Retrieve information about each active stream.
        For Each ActiveStream In ActiveStreams
            ' Retrieve the bit rate.
            iBitRate = ActiveStream.BitRate
        Next
    End If

Catch excCom As COMException
    ' TODO: Handle COM exceptions.
Catch exc As Exception
    ' TODO: Handle errors.
Finally
    ' TODO: Clean-up code goes here.
End Try

End Sub

Requirements

Reference: Add a reference to Microsoft.WindowsMediaServices.

Namespace: Microsoft.WindowsMediaServices.Interop.

Assembly: Microsoft.WindowsMediaServices.dll.

Library: WMSServerTypeLib.dll.

Platform: Windows Server 2003 family, Windows Server 2008 family.

See Also

• IWMSActiveStream Object (Visual Basic .NET)

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