StreamTypeName Property

Summary
Gets the name of the stream type, of the current stream in the source media file.
Syntax
C#
C++/CLI
public string StreamTypeName { get; } 
public: 
property String^ StreamTypeName { 
   String^ get(); 
} 

Property Value

A value representing the name of the stream type.

Remarks

This property is updated automatically when the CurrentStream property is set. To set a new current stream, set the CurrentStream property to the new value. Once the current stream has been set, other MediaInfo properties are updated with information about the current stream.

Example
C#
using Leadtools; 
using Leadtools.Multimedia; 
using LeadtoolsMultimediaExamples.Fixtures; 
 
 
public PlayCtrlForm _form = new PlayCtrlForm(); 
public bool _result = false; 
 
public void ResetSourceExample() 
{ 
   // reference the play control 
   PlayCtrl playctrl = _form.PlayCtrl; 
 
   // input file 
   string inWmvFile = Path.Combine(LEAD_VARS.MediaDir, "MediaInfo_Source.wmv"); 
   string inAviFile = Path.Combine(LEAD_VARS.MediaDir, "MediaInfo_Source.avi"); 
             
   try 
   { 
      // create a new media info object 
      MediaInfo mi = new MediaInfo(); 
 
      // get MP3 info 
      mi.SourceFile = inWmvFile; 
 
      // set the info string with general media information 
      Console.WriteLine("General Info"); 
      Console.WriteLine("Title: " + mi.Title); 
      Console.WriteLine("Author: " + mi.Author); 
      Console.WriteLine("Description: " + mi.Description); 
      Console.WriteLine("Rating: " + mi.Rating); 
      Console.WriteLine("Copyright: " + mi.Copyright); 
      Console.WriteLine(); 
 
      // reset the source 
      mi.ResetSource(); 
 
      // get AVI info 
      mi.SourceFile = inAviFile; 
 
      Console.WriteLine("General Info"); 
      Console.WriteLine("File: " + mi.SourceFile); 
      Console.WriteLine("File Size: " + mi.SourceFileSize); 
      Console.WriteLine("Format: " + mi.SourceFormat + "(" + mi.SourceFormatName + ")"); 
      Console.WriteLine("Duration: " + mi.SourceDuration); 
      Console.WriteLine("Real Bit-rate: " + mi.SourceBitRate); 
      Console.WriteLine("Format Type: " + mi.SourceMediaType.FormatType); 
      Console.WriteLine(); 
 
      Console.WriteLine("Source Filter Info"); 
                
      var s = mi.SourceFilter; 
      IntPtr ptr = Marshal.GetIUnknownForObject(s); 
      Console.WriteLine(string.Format("Address of Object Pointer: 0x{0:X}", ptr.ToInt64())); 
 
      Console.WriteLine("ClassID: " + mi.SourceFilterClassID); 
      Console.WriteLine("Name: " + mi.SourceFilterName); 
 
      Console.WriteLine("Streams Info"); 
      for ( int streamIndex = 0; streamIndex < mi.OutputStreams; streamIndex++ ) 
      { 
         mi.CurrentStream = streamIndex; 
         Console.WriteLine("Stream Index: " + streamIndex); 
         Console.WriteLine("Type: " + mi.StreamType + "(" + mi.StreamTypeName); 
         Console.WriteLine("Subtype: " + mi.StreamSubtype + "(" + mi.StreamSubtypeName); 
         Console.WriteLine("Format Type: " + mi.StreamMediaType.FormatType); 
 
         if (mi.StreamTypeName == "Video") 
         { 
            Console.WriteLine("Width: " + mi.VideoWidth + " pixels"); 
            Console.WriteLine("Height: " + mi.VideoHeight + " pixels"); 
            Console.WriteLine("Bit Count: " + mi.VideoBitCount + " bits per pixel"); 
            Console.WriteLine("Frame Count: " + mi.VideoFrames); 
            Console.WriteLine("Frame Rate: " + mi.VideoFrameRate + "frames per second"); 
            Console.WriteLine("Compression: " + mi.VideoCompression); 
            Console.WriteLine("Bit-rate: " + mi.VideoBitRate + "kbps"); 
            Console.WriteLine("Duration: " + mi.StreamDuration + "seconds"); 
            Console.WriteLine(); 
         } 
         else if (mi.StreamTypeName == "Audio") 
         { 
            Console.WriteLine("Format Tag: " + mi.AudioFormatTag); 
            Console.WriteLine("Channels: " + mi.AudioChannels); 
            Console.WriteLine("Frequency: " + mi.AudioSamplesPerSec + " samples per second"); 
            Console.WriteLine("Sample Size: " + mi.AudioBitsPerSample + " bits per sample"); 
            Console.WriteLine("Average Rate: " + mi.AudioAvgBytesPerSec + "bytes per second"); 
            Console.WriteLine("Duration: " + mi.StreamDuration + "seconds"); 
            Console.WriteLine(); 
         } 
      } 
 
      // media info outputted to console, set result to true 
      _result = true; 
 
      // reset the source 
      mi.ResetSource(); 
 
      // set the result to what we expect 
      _result = (mi.SourceFile == null); 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string MediaDir = @"C:\LEADTOOLS23\Media"; 
} 
Requirements

Target Platforms

Help Version 23.0.2024.2.29
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Leadtools.Multimedia Assembly
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.