Mamatha said:
I have an application in C#.net,my application displays
the video file.The file is in AVI format,now i want to
change this AVI file into wmv file.How can i do this?
Is it possible?Please give me any releated websites or any
source code etc.
Windows Media Downloads - Windows Media Encoder 9 Series SDK
<URL:
http://www.microsoft.com/downloads/details.aspx?familyid=000a16f5-d62b-4303-bb22-f0c0861be25b>
Sample:
\\\
Imports WMEncoderLib
..
..
..
' Erstellen des Encoders.
Private WithEvents m_Encoder As New WMEncoder()
' Gesamtdauer der zu codierenden Daten.
Private m_TotalDuration As Double
Private Sub StartButton_Click(...) Handles StartButton.Click
' Quellengruppe der Gruppenauflistung hinzufügen.
Dim SrcGrp As IWMEncSourceGroup2 = _
DirectCast( _
m_Encoder.SourceGroupCollection.Add("SG_1"), _
IWMEncSourceGroup2 _
)
' Hinzufügen einer Video- und einer Audioquelle.
Dim SrcVid As IWMEncVideoSource2 = _
DirectCast( _
SrcGrp.AddSource(WMENC_SOURCE_TYPE.WMENC_VIDEO), _
IWMEncVideoSource2 _
)
SrcVid.SetInput("C:\WINDOWS\clock.avi")
Dim SrcAud As IWMEncAudioSource = _
DirectCast( _
SrcGrp.AddSource(WMENC_SOURCE_TYPE.WMENC_AUDIO), _
IWMEncAudioSource _
)
SrcAud.SetInput("C:\WINDOWS\Media\Ee_rev.wav")
' Profil für Audio/Video anhand des Namens wählen ("scmeda.prx").
Const ProfileName As String = _
"Bildschirmvideo/Audio mit mittlerer Bitrate (CBR)"
For Each Profile As IWMEncProfile In m_Encoder.ProfileCollection
If Profile.Name = ProfileName Then
SrcGrp.Profile = Profile
Exit For
End If
Next Profile
' Eigenschaften des Medienobjekts setzen.
With m_Encoder.DisplayInfo
.Author = "John Doe"
.Copyright = _
"Copyright © 2005 John Doe Media Corporation. " & _
"All rights reserved."
.Description = "An animated clock with sound"
.Rating = "Great video."
.Title = "The Animated Clock"
End With
' Ausgabedateinamen angeben.
m_Encoder.File.LocalFileName = "C:\test.wmv"
' Videoframes um zwei Pixel auf jeder Seite beschneiden.
With SrcVid
.CroppingBottomMargin = 2
.CroppingTopMargin = 2
.CroppingLeftMargin = 2
.CroppingRightMargin = 2
End With
' Encoder vorbereiten. Dies muss vor der Berechnung Längen der
' Datenquellen geschehen.
m_Encoder.PrepareToEncode(True)
m_TotalDuration = _
Math.Max(SrcVid.Duration, SrcAud.Duration) / 1000
' Start the encoding process.
m_Encoder.Start()
End Sub
Private Sub Encoder_OnStateChange( _
ByVal enumState As WMENC_ENCODER_STATE _
) Handles m_Encoder.OnStateChange
Dim s As String
Select Case enumState
Case WMENC_ENCODER_STATE.WMENC_ENCODER_END_PREPROCESS
s = "Vorverarbeitung beendet."
Case WMENC_ENCODER_STATE.WMENC_ENCODER_PAUSED
s = "Unterbrochen."
Case WMENC_ENCODER_STATE.WMENC_ENCODER_PAUSING
s = "Unterbrechen..."
Case WMENC_ENCODER_STATE.WMENC_ENCODER_RUNNING
s = "Läuft..."
Case WMENC_ENCODER_STATE.WMENC_ENCODER_STARTING
s = "Startet..."
Me.EncodingProgressBar.Value = 0
Me.ProgressTimer.Enabled = True
Case WMENC_ENCODER_STATE.WMENC_ENCODER_STOPPED
s = "Beendet."
Me.EncodingProgressBar.Value = 100
Me.ProgressTimer.Enabled = False
Case WMENC_ENCODER_STATE.WMENC_ENCODER_STOPPING
s = "Beenden..."
End Select
Me.StatusLabel.Text = s
End Sub
Private Sub ProgressTimer_Tick(...) Handles ProgressTimer.Tick
If m_Encoder.RunState = WMENC_ENCODER_STATE.WMENC_ENCODER_RUNNING Then
Dim FileStats As IWMEncFileArchiveStats = _
DirectCast( _
m_Encoder.Statistics.FileArchiveStats, _
IWMEncFileArchiveStats _
)
Me.EncodingProgressBar.Value = _
CInt( _
MakeValid( _
FileStats.FileDuration * 10 / m_TotalDuration * 100, _
0, _
100 _
) _
)
End If
End Sub
///
BTW: This is a VB.NET group!
