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SourceAudioFOURCC Property

Summary

Gets the FOURCC format id for the source audio.

Syntax

C++/CLI

public virtual int SourceAudioFOURCC { get; }

public: 
virtual property int SourceAudioFOURCC { 
   int get(); 
}

Property Value

A value representing a FOURCC code for the audio format.

Remarks

If the source audio format is not a standard format, then this property is set to 0. For a list of audio format values, refer to the Microsoft documentation for FOURCC Codes.

Example

using Leadtools; 
using Leadtools.MediaFoundation; 
using LeadtoolsMediaFoundationExamples.Fixtures; 
 
 
public bool _result = false; 
public PlayCtrlForm _form = new PlayCtrlForm(); 
 
public void SourceAudioFOURCCExample() 
{ 
   PlayCtrl playctrl = _form.PlayCtrl; 
   string inFile = Path.Combine(LEAD_VARS.MediaDir, "PlayCtrl_Source.avi"); 
   string txtInfo; 
 
   try 
   { 
      playctrl.SourceFile = inFile; 
      int fourCC = playctrl.SourceVideoFOURCC; 
      string Video4CC = ""; 
      for (int i = 0; i < 4; i++) 
      { 
         char c = (char)(fourCC & 0xff); 
         Video4CC += c; 
         fourCC >>= 8; 
      } 
      fourCC = playctrl.SourceAudioFOURCC; 
      string Audio4CC = ""; 
      for (int i = 0; i < 4; i++) 
      { 
         char c = (char)(fourCC & 0xff); 
         Audio4CC += c; 
         fourCC >>= 8; 
      } 
 
      txtInfo = string.Format("Source video type {0}\n" + 
                              "Source audio type {1}\n" + 
                              "Source video FOURCC {2}\n" + 
                              "Source audio FOURCC {3}\n\n" + 
                              "Are these values correct?", 
                              playctrl.SourceVideoType, 
                              playctrl.SourceAudioType, 
                              Video4CC, 
                              Audio4CC); 
 
      _result = (MessageBox.Show(_form, txtInfo, "Test Verify", MessageBoxButtons.YesNo) == DialogResult.Yes); 
   } 
   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 (playctrl.State == PlayState.Running) 
      Application.DoEvents(); 
} 
 
static class LEAD_VARS 
{ 
   public const string MediaDir = @"C:\LEADTOOLS23\Media"; 
}

Requirements

Target Platforms

Reference

PlayCtrl Class

PlayCtrl Members

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Help Version 23.0.2024.2.29

Leadtools.MediaFoundation Assembly

Introduction

Getting Started

Namespaces

Leadtools.MediaFoundation Namespace

Leadtools.MediaFoundation.Common Namespace

Assemblies