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AllowedStreams Property

Summary

Gets or sets which streams can be converted.

Syntax

C++/CLI

public virtual StreamFormatType AllowedStreams { get; set; }

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

Property Value

A combination of StreamFormatType enumeration values.

Remarks

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

Example

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:\LEADTOOLS22\Media"; 
}

Requirements

Target Platforms

Reference

ConvertCtrl Class

ConvertCtrl Members

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Help Version 22.0.2022.12.7

Leadtools.MediaFoundation Assembly

Introduction

Getting Started

Namespaces

Leadtools.MediaFoundation Namespace

Leadtools.MediaFoundation.Common Namespace

Assemblies