Quantization Property

Summary
Gets the quantization value for the audio stream.
Syntax
C#
C++/CLI
public int Quantization { get; } 
public: 
property int Quantization { 
   int get(); 
} 

Property Value

A value representing the audio quantization.

Remarks

This value is dependent on the audio format. The audio data might be compressed to save disk space. The data has to be decompressed using an audio decompressor software component before you can play (hear) it. It must be designed to work with ACM or DirectShow.

Note: Different compression methods require different decompressors. There isn't a universal decompressor capable of decoding all compressed streams. See the DVD specification for more information.

Example
C#
using Leadtools; 
using Leadtools.Multimedia; 
using LeadtoolsMultimediaExamples.Fixtures; 
 
 
public bool _result = false; 
public ConvertCtrlForm _form = new ConvertCtrlForm(); 
 
public void UseDVDSourceExample() 
{ 
   // reference the convert control 
   ConvertCtrl convertctrl = _form.ConvertCtrl; 
 
   // input and output files 
   string inFile = Path.Combine(LEAD_VARS.MediaDir, @"VIDEO_TS\VIDEO_TS.IFO"); 
   string outFile = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_UseDVDSourceExample.avi"); 
 
   try 
   { 
      DVDSource dvdSource; 
      DVDTitle title; 
      DVDChapter chapter; 
      DVDSubpictureStream subpictureStream; 
      DVDAudioStream audioStream; 
      DVDVideoCompression comp; 
      DVDAudioAppMode appMode; 
      DVDAudioFormat audFormat; 
      DVDAudioLangExt audLangExt; 
      DVDSubpictureCoding subPicCoding; 
      DVDSubpictureLangExt subPicLangExt; 
      DVDSubpictureType subPicType; 
 
      int i; 
      int lCount; 
      long lVal; 
      bool bVal; 
      double dVal; 
      string strPlayList; 
 
      // force to use the DVD source 
      convertctrl.UseDVDSource = true; 
 
      // set the input and output files 
      convertctrl.SourceFile = inFile; 
      convertctrl.TargetFile = outFile; 
 
      // reference the DVDSource object 
      dvdSource = (DVDSource)convertctrl.GetSubObject(ConvertObject.SourceFilter); 
 
      //  Select the main title on the disc 
      if ((dvdSource.Selected != DVDSourceSelectedState.MainSelected)) 
         dvdSource.Selected = DVDSourceSelectedState.MainSelected; 
 
      //  Get the disc duration 
      dVal = dvdSource.TotalDuration; 
      //  Get the selected title duration 
      dVal = dvdSource.SelectedDuration; 
 
      //  Get the play list settings 
      strPlayList = dvdSource.PlayList; 
 
      //  You can save this to a file and restore the settings later 
      //  Restore the playlist settings 
      dvdSource.PlayList = strPlayList; 
 
      //  Get the title count in the disc 
      lCount = dvdSource.TitleCount; 
 
      for (i = 0; (i <= (lCount - 1)); i++) 
      { 
         //  Get the title interface 
         title = dvdSource.GetTitle(i); 
 
         //  Get the X and Y aspects 
         lVal = title.AspectX; 
         lVal = title.AspectY; 
 
         //  Get if the title is a film mode or camera mode 
         bVal = title.IsFilmMode; 
 
         //  Get if there is a user data in line 21, field 1 
         bVal = title.Line21Field1InGOP; 
 
         //  Get if there is a user data in line 21, field 2 
         bVal = title.Line21Field2InGOP; 
 
         //  Get the compression 
         comp = title.Compression; 
 
         //  Get the X source resolution 
         lVal = title.SourceResolutionX; 
 
         //  Get the Y source resolution 
         lVal = title.SourceResolutionY; 
 
         //  Get the Frame Height 
         lVal = title.FrameHeight; 
 
         //  Get the Frame Rate 
         lVal = title.FrameRate; 
 
         //  Get if the source is a letter boxed 
         bVal = title.IsSourceLetterboxed; 
 
         //  Get if the picture can be shown as letterbox 
         bVal = title.LetterboxPermitted; 
 
         //  Get if the picture can be shown as pan-scan 
         bVal = title.PanscanPermitted; 
 
         //  Get the title duration 
         dVal = title.TotalDuration; 
 
         //  Select all title chapters 
         if ((title.Selected != DVDTitleSelectedState.Selected)) 
            title.Selected = DVDTitleSelectedState.Selected; 
 
         //  Get the selected chapter duration 
         dVal = title.SelectedDuration; 
 
         //  Get the audio stream count in the title 
         if ((title.AudioStreamCount > 0)) 
         { 
            //  Select the first audio stream 
            if ((title.SelectedAudioStream == -1)) 
               title.SelectedAudioStream = 0; 
 
            //  Get the first audio stream 
            audioStream = title.GetAudioStream(0); 
 
            //  Select the audio stream 
            if ((audioStream.Selected == false)) 
               audioStream.Selected = true; 
 
            //  Get the application mode 
            appMode = audioStream.AppMode; 
 
            //  Get the application mode data 
            lVal = audioStream.AppModeData; 
 
            //  Get the auido format 
            audFormat = audioStream.AudioFormat; 
 
            //  Get the number of channels 
            lVal = audioStream.Channels; 
 
            //  Get the frequency 
            lVal = audioStream.Frequency; 
 
            //  Get the language 
            lVal = audioStream.Language; 
 
            //  Get the language extension 
            audLangExt = audioStream.LanguageExtension; 
 
            //  Get the quantization 
            lVal = audioStream.Quantization; 
 
            if ((title.SubpictureStreamCount > 0)) 
            { 
               //  Select the first subpicture stream 
               if ((title.SelectedSubpictureStream == -1)) 
                  title.SelectedSubpictureStream = 0; 
 
               //  Get the first subpicture stream 
               subpictureStream = title.GetSubpictureStream(0); 
 
               //  Select the subpicture stream 
               if ((subpictureStream.Selected == false)) 
                  subpictureStream.Selected = true; 
 
               //  Get the coding mode 
               subPicCoding = subpictureStream.CodingMode; 
 
               //  Get the langauge 
               lVal = subpictureStream.Language; 
 
               //  Get the language extension 
               subPicLangExt = subpictureStream.LanguageExtension; 
 
               //  Get the type 
               subPicType = subpictureStream.Type; 
            } 
            //  Get the chapter count 
            if ((title.ChapterCount > 0)) 
            { 
               //  Get the first chapter 
               chapter = title.GetChapter(0); 
 
               //  Get the chapter duration 
               dVal = chapter.Duration; 
 
               //  Get if the chapter is selected 
               if ((chapter.Selected == false)) 
                  chapter.Selected = true; 
            } 
         } 
      } 
   } 
   catch (COMException) 
   { 
      _result = false; 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
 
   // we'll loop on the state and pump messages for this example. 
   // but you should not need to if running from a Windows Forms application. 
   while (convertctrl.State == ConvertState.Running) 
      Application.DoEvents(); 
} 
 
static class LEAD_VARS 
{ 
   public const string MediaDir = @"C:\LEADTOOLS22\Media"; 
} 
Requirements

Target Platforms

Help Version 22.0.2022.12.7
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Leadtools.Multimedia Assembly

Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.