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SelectedAudioProcessors Property

Summary

Gets or sets the selected audio processors collection object.

Syntax

C++/CLI

[EditorAttribute(System.Type, System.Type)] 
public AudioProcessors SelectedAudioProcessors { get; }

public: 
property AudioProcessors^ SelectedAudioProcessors { 
   AudioProcessors^ get(); 
}

Property Value

An AudioProcessors object representing the audio processors collection.

Remarks

Use the AudioProcessors object to build a list of audio processing transforms to use during playback. See the AudioProcessors object for more details on audio processors collections.

Example

using Leadtools; 
using Leadtools.MediaFoundation; 
using LeadtoolsMediaFoundationExamples.Fixtures; 
 
 
public bool _result = false; 
public PlayCtrlForm _form = new PlayCtrlForm(); 
 
public void ProcessorsExample() 
{ 
   // reference the convert control 
   PlayCtrl playctrl = _form.PlayCtrl; 
 
   // input and output files 
   string inFile = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_Source.avi"); 
 
   try 
   { 
      // disable auto start 
      playctrl.AutoStart = false; 
 
      // set the event handler for state changes 
      playctrl.StateChanged += new StateChangedEventHandler(PlayCtrl_StateChanged); 
      // set source file 
      playctrl.SourceFile = inFile; 
 
      // if we have a video stream 
      if ((playctrl.AllowedStreams & StreamFormatType.Video) == StreamFormatType.Video) 
      { 
         // add the first video processor for playback 
         playctrl.SelectedVideoProcessors.Add(playctrl.VideoProcessors[0]); 
         Processor vproc = playctrl.SelectedVideoProcessors[0]; 
 
         // set the video processor properties 
         if (vproc.HasDialog(ProcessorDlg.Properties)) 
            vproc.ShowDialog(ProcessorDlg.Properties, _form); 
      } 
 
      // if we have an audio stream 
      if ((playctrl.AllowedStreams & StreamFormatType.Audio) == StreamFormatType.Audio) 
      { 
         // add the first audio processor for playback 
         playctrl.SelectedAudioProcessors.Add(playctrl.AudioProcessors[0]); 
         Processor aproc = playctrl.SelectedAudioProcessors[0]; 
 
         // set the audio processor properties 
         if (aproc.HasDialog(ProcessorDlg.Properties)) 
            aproc.ShowDialog(ProcessorDlg.Properties, _form); 
      } 
 
      // start the playback now 
      playctrl.Run(); 
 
      // 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 (playctrl.State == PlayState.Running) 
         Application.DoEvents(); 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
} 
 
void PlayCtrl_StateChanged(object sender, StateChangedEventArgs e) 
{ 
   // set the result to what we expect 
   _result = (e.lastState == PlayState.Running && e.state == PlayState.Stopped); 
} 
 
static class LEAD_VARS 
{ 
   public const string MediaDir = @"C:\LEADTOOLS22\Media"; 
}

Requirements

Target Platforms

Reference

PlayCtrl Class

PlayCtrl 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