AllowedStreams Property (ConvertCtrl)

Visual Basic
C#
C++/CLI

'Declaration
 
Public Overridable Property AllowedStreams As StreamFormatType

'Usage
 
Dim instance As ConvertCtrl
Dim value As StreamFormatType
 
instance.AllowedStreams = value
 
value = instance.AllowedStreams

public virtual StreamFormatType AllowedStreams {get; set;}

public:
virtual property StreamFormatType AllowedStreams {
   StreamFormatType get();
   void set (    StreamFormatType value);
}

Property Value

A combination of StreamFormatType enumeration values.

For a list of possible values, refer to the StreamFormatType enumerations. Individual values can be logically OR-ed to create a combination.

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

Copy Code

Imports Leadtools
Imports Leadtools.MediaFoundation
Imports LeadtoolsMediaFoundationExamples.Fixtures

Public _result As Boolean = False
Public _form As ConvertCtrlForm = New ConvertCtrlForm()
Public Sub TargetFormatsExample()
   ' reference the convert control
   Dim convertctrl As ConvertCtrl = _form.ConvertCtrl

   ' input and output files
   Dim inFile As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_Source.avi")
   Dim outFile As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_TargetFormatsExample.wmv")

   Try
      ' set the video capture device, use your capture device name here
      convertctrl.SourceFile = inFile

      ' select MP4 target format
      Dim tf As TargetFormat = convertctrl.TargetFormats(TargetFormatType.MP4)
      tf.Selected = True

      ' select H264 video target format
      Dim index As Integer = -1
      Dim trgvideoformats As TargetVideoFormats = convertctrl.TargetFormats(convertctrl.TargetFormat).VideoFormats
      index = trgvideoformats.IndexOf("{34363248-0000-0010-8000-00AA00389B71}") ' H264
      trgvideoformats.Selection = index

      ' select AAC audio target format
      Dim trgaudioformats As TargetAudioFormats = convertctrl.TargetFormats(convertctrl.TargetFormat).AudioFormats
      index = trgaudioformats.IndexOf("{00001610-0000-0010-8000-00AA00389B71}") ' AAC
      trgaudioformats.Selection = index


      ' set the allow capture streams 
      convertctrl.AllowedStreams = tf.Streams

      ' check it directly
      Dim tft As TargetFormatType = convertctrl.TargetFormat

      ' set the result to what we expect
      _result = (tft = TargetFormatType.MP4)

      ' set the target file
      convertctrl.TargetFile = outFile

      ' convert it now!
      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

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.MediaFoundation;
using LeadtoolsMediaFoundationExamples.Fixtures;

public bool _result = false;
public ConvertCtrlForm _form = new ConvertCtrlForm();
public void TargetFormatsExample()
{
   // reference the convert control
   ConvertCtrl convertctrl = _form.ConvertCtrl;

   // input and output files
   string inFile = Path.Combine(LEAD_VARS.MediaDir,"ConvertCtrl_Source.avi");
   string outFile = Path.Combine(LEAD_VARS.MediaDir,"ConvertCtrl_TargetFormatsExample.wmv");

   try
   {
      // set the video convert input file name
      convertctrl.SourceFile = inFile;

      // 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
      TargetFormat tf = convertctrl.TargetFormats[TargetFormatType.WMV];
      tf.Selected = true;

      // set the allow capture streams 
      convertctrl.AllowedStreams = tf.Streams;

      // check it directly
      TargetFormatType tft = convertctrl.TargetFormat;

      // set the result to what we expect
      _result = (tft == TargetFormatType.WMV);

      // set the target file
      convertctrl.TargetFile = outFile;

      // convert it now!
      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();
}

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

Target Platforms

Reference

ConvertCtrl Class
ConvertCtrl Members