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VideoFrameRate Property

Summary

Retrieves or sets the output video frame rate.

Syntax

C#
VB
C++
public double VideoFrameRate {get; set;} 
Public Property VideoFrameRate As Double 
public: 
property double VideoFrameRate { 
   double get(); 
   void set (    double ); 
}

Property Value

The output video frame rate in frames per second.

Remarks

The new frame rate value should be between 0.001 and 72.0.

Example

C#
VB
using Leadtools; 
using Leadtools.MediaStreaming; 
 
 
public Server _server = null; 
public bool _result = false; 
 
public void PrintLiveStreamsExample() 
{ 
   try 
   { 
      string strLiveStreams = ""; 
 
      // create an instance of the server object 
      _server = new Leadtools.MediaStreaming.Server(); 
 
      // retrieve a copy of the Live Streams 
      LiveStreams Streams = _server.GetLiveStreams(); 
 
      strLiveStreams += string.Format("--- Live Streams (count = {0}) ---\n\n", Streams.Count.ToString()); 
 
      // print the all live streams properties to a string 
 
      for (int nIndex = 0; nIndex < Streams.Count; nIndex++) 
      { 
         LiveStream stream = Streams.GetLiveStream(nIndex); 
 
         strLiveStreams += string.Format("Live Stream[{0}]: Path = \"{1}\".\n", nIndex.ToString(), stream.Path); 
 
         int nSelection = stream.VideoDevices.Selection; 
         string strDevice = ""; 
         if (nSelection < 0) 
            strDevice = "<none selected>"; 
         else 
            strDevice = stream.VideoDevices[nSelection].FriendlyName; 
 
         strLiveStreams += string.Format("Video Device = \"{0}\".\n", strDevice); 
 
         nSelection = stream.AudioDevices.Selection; 
         strDevice = ""; 
         if (nSelection < 0) 
            strDevice = "<none selected>"; 
         else 
            strDevice = stream.AudioDevices[nSelection].FriendlyName; 
 
         strLiveStreams += string.Format("Audio Device = \"{0}\".\n", strDevice); 
 
         strLiveStreams += string.Format("Video Width = \"{0}\".\n", stream.VideoWidth.ToString()); 
 
         strLiveStreams += string.Format("Video Height = \"{0}\".\n", stream.VideoHeight.ToString()); 
 
         if (stream.UseVideoInputSize) 
            strLiveStreams += string.Format("Use Video Input Size = \"true\".\n"); 
         else 
            strLiveStreams += string.Format("Use Video Input Size = \"false\".\n"); 
 
         strLiveStreams += string.Format("Video Frame Rate = \"{0}\".\n", stream.VideoFrameRate.ToString()); 
 
         if (stream.UseVideoInputFrameRate) 
            strLiveStreams += string.Format("Use Video Input Frame Rate = \"true\".\n"); 
         else 
            strLiveStreams += string.Format("Use Video Input Frame Rate = \"false\".\n"); 
 
         strLiveStreams += string.Format("Video Bit Rate = \"{0}\".\n", stream.VideoBitRate.ToString()); 
 
         if (stream.QSVAcceleration) 
            strLiveStreams += string.Format("QSVAcceleration = \"true\".\n"); 
         else 
            strLiveStreams += string.Format("QSVAcceleration = \"false\".\n"); 
 
         if (stream.CUDAAcceleration) 
            strLiveStreams += string.Format("CUDAAcceleration = \"true\".\n"); 
         else 
            strLiveStreams += string.Format("CUDAAcceleration = \"false\".\n"); 
 
         nSelection = stream.AudioTypes.Selection; 
         string strType = ""; 
         if (nSelection < 0) 
            strType = "<none selected>"; 
         else 
            strType = stream.AudioTypes[nSelection].FriendlyName; 
 
         if (stream.UseDeviceEncoding) 
            strLiveStreams += string.Format("Use Device Encoding = \"true\".\n"); 
         else 
            strLiveStreams += string.Format("Use Device Encoding = \"false\".\n"); 
 
         strLiveStreams += string.Format("Minimum Fragment Duration = \"{0}\".\n", stream.MinimumFragmentDuration.ToString()); 
      } 
 
      // display a message contains the Live Streams information string 
      MessageBox.Show(strLiveStreams, "LEADTOOLS Media Streaming Examples", MessageBoxButtons.OK, MessageBoxIcon.Information); 
 
      _result = true; 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
} 
Imports Leadtools 
Imports Leadtools.MediaStreaming 
 
 
Public _server As Server = Nothing 
Public _result As Boolean = False 
 
Public Sub PrintLiveStreamsExample() 
   Try 
      Dim strLiveStreams As String = "" 
 
      ' create an instance of the server object 
      _server = New Leadtools.MediaStreaming.Server() 
 
      ' retrieve a copy of the Live Streams 
      Dim Streams As LiveStreams = _server.GetLiveStreams() 
 
      strLiveStreams &= String.Format("--- Live Streams (count = {0}) ---" & Constants.vbLf + Constants.vbLf, Streams.Count.ToString()) 
 
      ' print the all live streams properties to a string 
 
      Dim nIndex As Integer = 0 
      Do While nIndex < Streams.Count 
         Dim stream As LiveStream = Streams.GetLiveStream(nIndex) 
 
         strLiveStreams &= String.Format("Live Stream[{0}]: Path = ""{1}""." & Constants.vbLf, nIndex.ToString(), stream.Path) 
 
         Dim nSelection As Integer = stream.VideoDevices.Selection 
         Dim strDevice As String = "" 
         If nSelection < 0 Then 
            strDevice = "<none selected>" 
         Else 
            strDevice = stream.VideoDevices(nSelection).FriendlyName 
         End If 
 
         strLiveStreams &= String.Format("Video Device = ""{0}""." & Constants.vbLf, strDevice) 
 
         nSelection = stream.AudioDevices.Selection 
         strDevice = "" 
         If nSelection < 0 Then 
            strDevice = "<none selected>" 
         Else 
            strDevice = stream.AudioDevices(nSelection).FriendlyName 
         End If 
 
         strLiveStreams &= String.Format("Audio Device = ""{0}""." & Constants.vbLf, strDevice) 
 
         strLiveStreams &= String.Format("Video Width = ""{0}""." & Constants.vbLf, stream.VideoWidth.ToString()) 
 
         strLiveStreams &= String.Format("Video Height = ""{0}""." & Constants.vbLf, stream.VideoHeight.ToString()) 
 
         If stream.UseVideoInputSize Then 
            strLiveStreams &= String.Format("Use Video Input Size = ""true""." & Constants.vbLf) 
         Else 
            strLiveStreams &= String.Format("Use Video Input Size = ""false""." & Constants.vbLf) 
         End If 
 
         strLiveStreams &= String.Format("Video Frame Rate = ""{0}""." & Constants.vbLf, stream.VideoFrameRate.ToString()) 
 
         If stream.UseVideoInputFrameRate Then 
            strLiveStreams &= String.Format("Use Video Input Frame Rate = ""true""." & Constants.vbLf) 
         Else 
            strLiveStreams &= String.Format("Use Video Input Frame Rate = ""false""." & Constants.vbLf) 
         End If 
 
         strLiveStreams &= String.Format("Video Bit Rate = ""{0}""." & Constants.vbLf, stream.VideoBitRate.ToString()) 
 
         If stream.QSVAcceleration Then 
            strLiveStreams &= String.Format("QSVAcceleration = ""true""." & Constants.vbLf) 
         Else 
            strLiveStreams &= String.Format("QSVAcceleration = ""false""." & Constants.vbLf) 
         End If 
 
         If stream.CUDAAcceleration Then 
            strLiveStreams &= String.Format("CUDAAcceleration = ""true""." & Constants.vbLf) 
         Else 
            strLiveStreams &= String.Format("CUDAAcceleration = ""false""." & Constants.vbLf) 
         End If 
 
         nSelection = stream.AudioTypes.Selection 
         Dim strType As String = "" 
         If nSelection < 0 Then 
            strType = "<none selected>" 
         Else 
            strType = stream.AudioTypes(nSelection).FriendlyName 
         End If 
 
         If stream.UseDeviceEncoding Then 
            strLiveStreams &= String.Format("Use Device Encoding = ""true""." & Constants.vbLf) 
         Else 
            strLiveStreams &= String.Format("Use Device Encoding = ""false""." & Constants.vbLf) 
         End If 
 
         strLiveStreams &= String.Format("Minimum Fragment Duration = ""{0}""." & Constants.vbLf, stream.MinimumFragmentDuration.ToString()) 
         nIndex += 1 
      Loop 
 
      ' display a message contains the Live Streams information string 
      MessageBox.Show(strLiveStreams, "LEADTOOLS Media Streaming Examples", MessageBoxButtons.OK, MessageBoxIcon.Information) 
 
      _result = True 
   Catch e1 As Exception 
      _result = False 
   End Try 
End Sub

Requirements

Target Platforms

Help Version 19.0.2017.10.27
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Leadtools.MediaStreaming Assembly
Introduction
Getting Started
Namespaces
Leadtools.MediaStreaming Namespace
Assemblies