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AverageFrameSize Property

Summary

Gets the average size of the frames that have been captured.

Syntax

C++/CLI

public virtual int AverageFrameSize { get; }

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

Property Value

A value representing the average frame size, in bytes, of the captured frames.

Remarks

The value is reset to zero when you start a new capture.

Example

using Leadtools; 
using Leadtools.MediaFoundation; 
using LeadtoolsMediaFoundationExamples.Fixtures; 
 
 
public bool _result = false; 
public CaptureCtrlForm _form = new CaptureCtrlForm(false); 
 
// capture control 
CaptureCtrl capturectrl; 
 
// output file 
string outFile = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_AverageFrameSizeExample.avi"); 
 
public void AverageFrameSizeExample() 
{ 
   // reference the capture control 
   capturectrl = _form.CaptureCtrl; 
 
   // average frame size 
   int AverageFrameSize = 0; 
 
   try 
   { 
      // set the source video device, select using your device name here 
      if (capturectrl.VideoDevices["USB"] == null) 
      { 
         throw new Exception("No USB video device available"); 
      } 
 
      capturectrl.VideoDevices["USB"].Selected = true; 
 
      // select a target video format 
      capturectrl.TargetFormats.MP4.Selected = true; 
 
      // set the target output file 
      capturectrl.TargetFile = outFile; 
 
      // start capture 
      capturectrl.UseTimeLimit = true; 
      capturectrl.TimeLimit = 1; 
      capturectrl.StartCapture(CaptureMode.Video); 
 
      // wait till capture is no longer running 
      while (capturectrl.State == CaptureState.Running) 
      { 
         Application.DoEvents(); 
      } 
 
      // get the average frame size 
      AverageFrameSize = capturectrl.AverageFrameSize; 
 
      // set the result to what we expect 
      _result = (AverageFrameSize > 0); 
   } 
   catch (COMException) 
   { 
      _result = false; 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string MediaDir = @"C:\LEADTOOLS23\Media"; 
}

Requirements

Target Platforms

Reference

CaptureCtrl Class

CaptureCtrl 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