Gets or sets the media source stream.
public virtual Stream SourceStream { get; set; }
Public Overridable Property SourceStream As Stream
A System.IO.Stream object for the media source stream.
This property allows the user to assign a Stream derived object as the media source for the conversion process. The SourceType will be set to SourceObjectType.Stream. Assignment can raise error exception. For more information, refer to the Error Codes.
Note: When setting this property, the convert control must be in the stopped state.
using Leadtools;
using Leadtools.MediaFoundation;
using LeadtoolsMediaFoundationExamples.Fixtures;
public bool _result = false;
public ConvertCtrlForm _form = new ConvertCtrlForm();
// input and output file names
public string _inFile = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_Source.avi");
public string _outFile = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_SourceStreamExample.WMV");
public void SourceStreamExample()
{
// reference the convert control
ConvertCtrl convertctrl = _form.ConvertCtrl;
try
{
// set the source stream
convertctrl.SourceStream = new StreamReader(_inFile).BaseStream;
// select video and audio target formats for the output
int index = -1;
TargetVideoFormats targetvideoformats = convertctrl.TargetFormats[convertctrl.TargetFormat].VideoFormats;
index = targetvideoformats.IndexOf("{33564D57-0000-0010-8000-00AA00389B71}");// Windows Media Video 9 (WMV)
targetvideoformats.Selection = index;
TargetAudioFormats targetaudioformats = convertctrl.TargetFormats[convertctrl.TargetFormat].AudioFormats;
index = targetaudioformats.IndexOf("{00000161-0000-0010-8000-00AA00389B71}");// Windows Media Audio (WMA)
targetaudioformats.Selection = index;
// select the WMV target format
convertctrl.TargetFormat = TargetFormatType.WMV;
// set the target file and format
convertctrl.TargetFile = _outFile;
// subscribe to the complete event to check our result
convertctrl.Complete += new EventHandler(ConvertCtrl_Complete);
// set the allowed streams
convertctrl.AllowedStreams = StreamFormatType.Video;
// convert it!
convertctrl.StartConvert();
}
catch (Exception)
{
_result = false;
}
// we'll loop on the state and pump messages for this example.
// but you should not need to if running from a Windows Forms application.
while (convertctrl.State == ConvertState.Running)
Application.DoEvents();
}
void ConvertCtrl_Complete(object sender, EventArgs e)
{
// set the result
_result = File.Exists(_outFile);
}
static class LEAD_VARS
{
public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 20\Media";
}
Imports Leadtools
Imports Leadtools.MediaFoundation
Imports LeadtoolsMediaFoundationExamples.Fixtures
Public _result As Boolean = False
Public _form As ConvertCtrlForm = New ConvertCtrlForm()
' input and output file names
Public _inFile As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_Source.avi")
Public _outFile As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_SourceStreamExample.wmv")
Public Sub SourceStreamExample()
' reference the convert control
Dim convertctrl As ConvertCtrl = _form.ConvertCtrl
Try
' set the source stream
convertctrl.SourceStream = New StreamReader(_inFile).BaseStream
' set the target file
convertctrl.TargetFile = _outFile
' select WMV target format
convertctrl.TargetFormat = TargetFormatType.WMV
' select video and audio target formats for the output
Dim index As Integer = -1
Dim trgvideoformats As TargetVideoFormats = convertctrl.TargetFormats(convertctrl.TargetFormat).VideoFormats
index = trgvideoformats.IndexOf("{33564D57-0000-0010-8000-00AA00389B71}") ' Windows Media Video 9 (WMV)
trgvideoformats.Selection = index
Dim trgaudioformats As TargetAudioFormats = convertctrl.TargetFormats(convertctrl.TargetFormat).AudioFormats
index = trgaudioformats.IndexOf("{00000161-0000-0010-8000-00AA00389B71}") ' Windows Media Audio (WMA)
trgaudioformats.Selection = index
' subscribe to the complete event to check our result
AddHandler convertctrl.Complete, AddressOf ConvertCtrl_Complete
' set the allowed streams
convertctrl.AllowedStreams = StreamFormatType.Video
' convert it!
convertctrl.StartConvert()
Catch e1 As Exception
_result = False
End Try
' we'll loop on the state and pump messages for this example.
' but you should not need to if running from a Windows Forms application.
Do While convertctrl.State = ConvertState.Running
Application.DoEvents()
Loop
End Sub
Private Sub ConvertCtrl_Complete(ByVal sender As Object, ByVal e As EventArgs)
' set the result
_result = File.Exists(_outFile)
End Sub
Public NotInheritable Class LEAD_VARS
Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 20\Media"
End Class
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