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MaxKeyFrameSpacing Property

Summary

Gets or sets the maximum key frame time interval in 100-nanosecond units.

Syntax

C++/CLI

public double MaxKeyFrameSpacing { get; set; }

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

Property Value

A value that represents the maximum key frame time interval in 100-nanosecond units.

Remarks

Gets or sets the maximum key frame time interval in 100-nanosecond units. Do not use long intervals because that might affect the streaming or playback of the contents when seeking the stream.

Example

using Leadtools; 
using Leadtools.Multimedia; 
using LeadtoolsMultimediaExamples.Fixtures; 
 
 
public bool _result = false; 
public CaptureCtrlForm _form = new CaptureCtrlForm(); 
 
public void StreamTypeExample() 
{ 
   // reference the capture control 
   CaptureCtrl capturectrl = _form.CaptureCtrl; 
 
   try 
   { 
      // reference the profile if available 
      WMProfile CurrentProfile = capturectrl.WMProfile; 
 
      // if we have a profile display the info 
      if (CurrentProfile != null) 
         MessageBox.Show(GetStreamInfo(CurrentProfile), "Stream Info", MessageBoxButtons.OK); 
      _result = true; 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
} 
 
// discovering streams  
private string GetStreamInfo(WMProfile Profile) 
{ 
   WMStreamConfig streamConfig; 
   string streamInfo = string.Empty; 
 
   // show all the information regarding the streams 
   for (int i = 0; i < Profile.StreamCount - 1; i++) 
   { 
      streamConfig = Profile.GetStream(0); 
      streamInfo += "[[ Stream " + (i + 1).ToString() + " ]]"; 
 
      // get the major type of the stream 
      streamInfo += "\n type: " + streamConfig.StreamType; 
 
      // get Stream number 
      streamInfo += "\n number: " + streamConfig.StreamNumber.ToString(); 
 
      // get Stream name 
      streamInfo += "\n name: " + streamConfig.StreamName; 
 
      // get connection name 
      streamInfo += "\n connection name: " + streamConfig.ConnectionName; 
 
      // get Bitrate 
      streamInfo += "\n bitrate: " + streamConfig.Bitrate.ToString(); 
 
      // get the maximum latency (time in milliseconds) between stream reception and display 
      streamInfo += "\n buffer window: " + streamConfig.BufferWindow.ToString(); 
 
      // get the major type of the media in the stream 
      streamInfo += "\n majortype: " + streamConfig.Type; 
 
      // get the maximum key frame time interval (in 100-nano seconds)  
      streamInfo += "\n max keyframe spacing: " + streamConfig.MaxKeyFrameSpacing.ToString(); 
 
      // get the Quality, range from 0 to 100 
      // where zero denotes maximum frame rate and 100 denotes maximum quality.  
      streamInfo += "\n stream quality: "; 
 
      if (streamConfig.Quality > -1) 
         streamInfo += streamConfig.Quality.ToString(); 
      else 
         streamInfo += "(unknown)"; 
   } 
 
   return streamInfo; 
}

Requirements

Target Platforms

Reference

WMStreamConfig Class

WMStreamConfig Members

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Help Version 23.0.2024.2.29

Leadtools.Multimedia Assembly

Introduction

Getting Started

Namespaces

Leadtools.Multimedia Namespace

Leadtools.Multimedia.Common Namespace

Assemblies