VideoFrames Property

C#
Visual Basic
Objective-C
Java
C++

public int VideoFrames {get;}

'Declaration

Public ReadOnly Property VideoFrames As Integer

'Usage

Dim instance As MediaInfo
Dim value As Integer
 
value = instance.VideoFrames

public:
property int VideoFrames {
   int get();
}

Property Value

A value representing the total number of video frames in the current stream.

This property is updated automatically when the CurrentStream property is set to a video stream. This property will not be updated if the current stream is not a video stream. The current source media file, found in the SourceFile property, 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.

C#
Visual Basic
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 19\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 19\Media";
}

Target Platforms

Reference

MediaInfo Class
MediaInfo Members