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AudioBufferSize Property

Summary

Gets or sets the audio capture buffer size, in seconds.

Syntax

C++/CLI

public virtual double AudioBufferSize { get; set; }

public: 
virtual property double AudioBufferSize { 
   double get(); 
   void set (    double ); 
}

Property Value

A value representing the capture buffer size.

Remarks

The default value is 0.5 seconds. Assignment can raise an error exception. For more information, refer to the Error Codes.

Example

using Leadtools; 
using Leadtools.Multimedia; 
using LeadtoolsMultimediaExamples.Fixtures; 
 
 
public bool _result = false; 
public CaptureCtrlForm _form = new CaptureCtrlForm(); 
 
// capture control 
CaptureCtrl capturectrl; 
 
// output file 
string outFile = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_AudioBufferSizeExample.avi"); 
 
public void AudioBufferSizeExample() 
{ 
   // reference the capture control 
   capturectrl = _form.CaptureCtrl; 
 
   // audio buffer size 
   double AudioBufferSize; 
 
   try 
   { 
      // set the source video device. use your device's name here 
      if (capturectrl.VideoDevices["USB"] == null) 
      { 
         throw new Exception("No USB video device available"); 
      } 
 
      capturectrl.VideoDevices["USB"].Selected = true; 
 
      // set the source audio device. use your device's name here 
      if (capturectrl.AudioDevices["USB"] == null) 
      { 
         throw new Exception("No USB audio device available"); 
      } 
 
      capturectrl.AudioDevices["USB"].Selected = true; 
 
      // select a video compressor 
      capturectrl.VideoCompressors.Mpeg4.Selected = true; 
 
      // select an audio compressor 
      capturectrl.AudioCompressors.AC3.Selected = true; 
 
      // set the target output file 
      capturectrl.TargetFile = outFile; 
 
      // subscribe to the started event 
      capturectrl.Started += CaptureCtrl_Started; 
 
      // start capture 
      capturectrl.StartCapture(CaptureMode.VideoAndAudio); 
 
      // get audio buffer size 
      AudioBufferSize = capturectrl.AudioBufferSize; 
 
      // set the result to what we expect 
      _result = (AudioBufferSize > 0); 
   } 
   catch (COMException) 
   { 
      _result = false; 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
} 
 
void CaptureCtrl_Started(object sender, EventArgs e) 
{ 
   // stop the capture (we do not need a complete capture for this example) 
   capturectrl.StopCapture(); 
} 
 
static class LEAD_VARS 
{ 
   public const string MediaDir = @"C:\LEADTOOLS22\Media"; 
}

Requirements

Target Platforms

Reference

CaptureCtrl Class

CaptureCtrl Members

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Help Version 22.0.2022.12.7

Leadtools.Multimedia Assembly

Introduction

Getting Started

Namespaces

Leadtools.Multimedia Namespace

Leadtools.Multimedia.Common Namespace

Assemblies