SourceFilter Property

Visual Basic
C#
C++/CLI

'Declaration
 
Public ReadOnly Property SourceFilter As Object

'Usage
 
Dim instance As MediaInfo
Dim value As Object
 
value = instance.SourceFilter

public object SourceFilter {get;}

public:
property Object^ SourceFilter {
   Object^ get();
}

Property Value

A Object representing the source filter for the current source media file.

This property is updated automatically when the SourceFile property is set to the current source media file. The current source media file is found in the SourceFile property. This is the file that the MediaInfo object gets information for. The SourceFile property must be set before retrieving information from any of the other MediaInfo properties. Call the ResetSource method to release the source file when it is no longer needed.

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
Imports Leadtools.Multimedia
Imports LeadtoolsMultimediaExamples.Fixtures

Public _form As PlayCtrlForm = New PlayCtrlForm()
Public _result As Boolean = False
Public Sub ResetSourceExample()
  ' reference the play control
  Dim playctrl As PlayCtrl = _form.PlayCtrl

  ' input file
            Dim inFile As String = Path.Combine(LEAD_VARS.MediaDir, "MediaInfo_Source.avi")
  Dim info As String = String.Empty

  Try
     ' create a new media info object
     Dim mi As MediaInfo = New MediaInfo()

     ' set the input and output files
     mi.SourceFile = inFile

     ' set the info string
     info = String.Format("Source File={0}" _
                          & Microsoft.VisualBasic.Constants.vbLf _
                          & "Source File Size={1}" & Microsoft.VisualBasic.Constants.vbLf _
                          & "Source BitRate={2}" & Microsoft.VisualBasic.Constants.vbLf _
                          & "Duration={3}" & Microsoft.VisualBasic.Constants.vbLf _
                          & "VideoBitRate={4}" _
                          & Microsoft.VisualBasic.Constants.vbLf _
                          & "VideoBitCount={5}" _
                          & Microsoft.VisualBasic.Constants.vbLf + Microsoft.VisualBasic.Constants.vbLf _
                          & "Are these values correct?", _
                          mi.SourceFile, _
                          mi.SourceFileSize, _
                          mi.SourceBitRate, _
                          mi.SourceDuration, _
                          mi.VideoBitRate, _
                          mi.VideoBitCount) ', mi.AudioBitsPerSample, mi.AudioChannels);

     ' verify the values
     _result = (MessageBox.Show(_form, info, "Media Info", MessageBoxButtons.YesNo) = DialogResult.Yes)

     ' reset the source
     mi.ResetSource()

     ' set the result to what we expect
     _result = _result And (mi.SourceFile Is Nothing)
  Catch e1 As Exception
     _result = False
  End Try
End Sub

Public NotInheritable Class LEAD_VARS
Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 18\Media"
End Class

using Leadtools;
using Leadtools.Multimedia;
using LeadtoolsMultimediaExamples.Fixtures;

public PlayCtrlForm _form = new PlayCtrlForm();
public bool _result = false;
public void ResetSourceExample()
{
   // reference the play control
   PlayCtrl playctrl = _form.PlayCtrl;

   // input file
   string inFile =Path.Combine(LEAD_VARS.MediaDir,"MediaInfo_Source.avi");
   string info = string.Empty;

   try
   {
      // create a new media info object
      MediaInfo mi = new MediaInfo();

      // set the input and output files
      mi.SourceFile = inFile;

      // set the info string
      info = string.Format("Source File={0}\nSource File Size={1}\nSource BitRate={2}\nDuration={3}\nVideoBitRate={4}\nVideoBitCount={5}\n\nAre these values correct?",
          // AudioBitsPerSample={5}\nAudioChannels={6}\n 
         mi.SourceFile, mi.SourceFileSize, mi.SourceBitRate, mi.SourceDuration, mi.VideoBitRate, mi.VideoBitCount); //, mi.AudioBitsPerSample, mi.AudioChannels);

      // verify the values
      _result = (MessageBox.Show(_form, info, "Media Info", MessageBoxButtons.YesNo) == DialogResult.Yes);

      // reset the source
      mi.ResetSource();

      // set the result to what we expect
      _result &= (mi.SourceFile == null);
   }
   catch (Exception)
   {
      _result = false;
   }
}

static class LEAD_VARS
{
public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 18\Media";
}

Target Platforms

Reference

MediaInfo Class
MediaInfo Members