CurrentAudioStream Property

Summary
Gets or sets the number of the currently selected audio stream in the current title.
Syntax
C#
C++/CLI
public int CurrentAudioStream { get; set; } 
public: 
property int CurrentAudioStream { 
   int get(); 
   void set (    int ); 
} 

Property Value

The number of the currently selected audio stream.

Remarks

The AudioStreamsAvailable property contains the total number of available audio streams within the current title. Other "current" information can be found in the following properties: CurrentTitle, CurrentChapter, CurrentDiscSide, CurrentVolume, CurrentButton, CurrentUOPS, CurrentTime, CurrentAngle, CurrentSubpictureStream, and CurrentDomain. For more detailed information, refer to the Microsoft documentation for IDvdInfo2.GetCurrentAudio.

Example
C#
using Leadtools; 
using Leadtools.Multimedia; 
using LeadtoolsMultimediaExamples.Fixtures; 
 
 
public bool _result = false; 
public PlayCtrlForm _form = new PlayCtrlForm(); 
public PlayCtrl _playctrl; 
 
public void IsAudioStreamEnabledExample() 
{ 
   // reference the play control 
   _playctrl = _form.PlayCtrl; 
 
   string inFile = Path.Combine(LEAD_VARS.MediaDir, @"VIDEO_TS\VIDEO_TS.IFO"); 
 
   try 
   { 
      // set auto start off 
      _playctrl.AutoStart = false; 
 
      // use DVDSource 
      _playctrl.UseDVDSource = true; 
 
      // set the input file 
      _playctrl.SourceFile = inFile; 
 
      // check the DVD options 
      DvdInfoCheck(); 
 
      // play it 
      _playctrl.Run(); 
   } 
   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 (_playctrl.State == PlayState.Running) 
      Application.DoEvents(); 
} 
 
// check DVD properties and info 
private void DvdInfoCheck() 
{ 
   string bstrVal; 
   int val; 
   int button = _playctrl.DvdController.CurrentButton; 
 
   val = _playctrl.DvdController.GetButtonWidth(button); 
   val = _playctrl.DvdController.GetButtonHeight(button); 
   val = _playctrl.DvdController.GetButtonLeft(button); 
   val = _playctrl.DvdController.GetButtonTop(button); 
 
   val = _playctrl.DvdController.DefaultMenuLanguage; 
   _playctrl.DvdController.DefaultMenuLanguage = 1033; 
   val = _playctrl.DvdController.GetNumberOfChapters(0); 
   val = _playctrl.DvdController.TotalTitleTime; 
 
   DVDTimecodeFlags tcFlags = _playctrl.DvdController.TitleTimecodeFlags; 
 
   val = _playctrl.DvdController.CurrentAngle; 
   if (_playctrl.DvdController.AnglesAvailable > 1) 
      _playctrl.DvdController.CurrentAngle = 2; 
 
   DVDValidUserOp userOp = _playctrl.DvdController.CurrentUOPS; 
   long audioLang = _playctrl.DvdController.GetAudioLanguage(0); 
 
   val = _playctrl.DvdController.CurrentAudioStream; 
   if (_playctrl.DvdController.AudioStreamsAvailable > 1) 
      _playctrl.DvdController.CurrentAudioStream = 2; 
 
   val = _playctrl.DvdController.CurrentTime; 
   val = _playctrl.DvdController.CurrentVolume; 
   val = _playctrl.DvdController.VolumesAvailable; 
   val = _playctrl.DvdController.TitlesAvailable; 
   bool enabled = _playctrl.DvdController.IsAudioStreamEnabled(0); 
   val = _playctrl.DvdController.DefaultAudioLanguage; 
 
   _playctrl.DvdController.SelectDefaultAudioLanguage(1033, DVDAudioLangExt.Captions); 
 
   string directory = _playctrl.DvdController.DVDDirectory; 
   val = _playctrl.DvdController.CurrentSubpictureStream; 
   val = _playctrl.DvdController.SubpictureStreamsAvailable; 
   if ((val > 1)) 
   { 
      _playctrl.DvdController.CurrentSubpictureStream = 1; 
   } 
   val = _playctrl.DvdController.DefaultSubpictureLanguage; 
   _playctrl.DvdController.SelectDefaultSubpictureLanguage(1033, DVDSubpictureLangExt.Caption_Normal); 
 
   val = _playctrl.DvdController.CurrentTitle; 
 
   DVDSubpictureLangExt subPicLangExt = _playctrl.DvdController.DefaultSubpictureLanguageExt; 
 
   DVDAudioLangExt audioLangExt = _playctrl.DvdController.DefaultAudioLanguageExt; 
   long subpicLang = _playctrl.DvdController.GetSubpictureLanguage(0); 
   bool subPicStream = _playctrl.DvdController.IsSubpictureStreamEnabled(0); 
 
   val = _playctrl.DvdController.GetDVDTextLanguageLCID(0); 
   val = _playctrl.DvdController.DVDTextNumberOfLanguages; 
   val = _playctrl.DvdController.GetGPRM(0); 
   _playctrl.DvdController.SetGPRM(0, 1); 
 
   val = _playctrl.DvdController.GetDVDTextNumberOfStrings(0); 
   val = _playctrl.DvdController.ButtonsAvailable; 
   val = _playctrl.DvdController.PlayerParentalLevel; 
   val = _playctrl.DvdController.PlayerParentalCountry; 
   string ppCountry = string.Format("{0}{1}", (char)(val & 0xFF), (char)(val >> 8)); 
 
   if (ppCountry != "US") 
   { 
      val = (int)'U'; 
      val += ((int)'S' << 8); 
      _playctrl.DvdController.SelectParentalCountry(val, "user", "pwd"); 
   } 
   val = _playctrl.DvdController.GetTitleParentalLevels(-1); 
   _playctrl.DvdController.SelectParentalLevel(9, "user", "pwd"); 
 
   DVDDomain domain = _playctrl.DvdController.CurrentDomain; 
   DVDDiscSide diskSide = _playctrl.DvdController.CurrentDiscSide; 
 
   val = _playctrl.DvdController.CurrentChapter; 
   DVDTextStringType textStrType = _playctrl.DvdController.GetDVDTextStringType(0, 0); 
   if (!_playctrl.DvdController.SubpictureOn) 
      _playctrl.DvdController.SubpictureOn = true; 
 
   val = _playctrl.DvdController.GetSPRM(0); 
   bstrVal = _playctrl.DvdController.GetDVDTextString(0, 0); 
   bstrVal = _playctrl.DvdController.DVDUniqueID; 
} 
 
// menu event helpers for DVD navigation and control 
private void mnAcceptParentalLevelChange_Click() 
{ 
   _playctrl.DvdController.AcceptParentalLevelChange(true); 
} 
 
private void mnActivateAtPosition_Click() 
{ 
   _playctrl.DvdController.ActivateAtPosition(10, 10); 
} 
 
private void mnActivateButton_Click() 
{ 
   _playctrl.DvdController.ActivateButton(); 
} 
 
private void mnChangeDVDRegion_Click() 
{ 
   _playctrl.DvdController.ChangeDVDRegion(_form); 
} 
 
private void mnNotifyParentalLevelChange_Click() 
{ 
   _playctrl.DvdController.NotifyParentalLevelChange(true); 
} 
 
private void mnPause_Click() 
{ 
   _playctrl.DvdController.Pause(true); 
} 
 
private void mnPlayAtInTitle_Click() 
{ 
   _playctrl.DvdController.PlayAtTimeInTitle(1, 10000000); 
} 
 
private void mnPlayAtTime_Click() 
{ 
   _playctrl.DvdController.PlayAtTime(10000000); 
} 
 
private void mnPlaybackword_Click() 
{ 
   _playctrl.DvdController.PlayBackwards(5); 
} 
 
private void mnPlayChapter_Click() 
{ 
   _playctrl.DvdController.PlayChapter(1); 
} 
 
private void mnPlaychapterautostop_Click() 
{ 
   _playctrl.DvdController.PlayChaptersAutoStop(1, 2, 5); 
} 
 
private void mnPlaychapterintitle_Click() 
{ 
   _playctrl.DvdController.PlayChapterInTitle(1, 3); 
} 
 
private void mnPlayfowrward_Click() 
{ 
   _playctrl.DvdController.PlayForwards(5); 
} 
 
private void mnPlayNextChapter_Click() 
{ 
   _playctrl.DvdController.PlayNextChapter(); 
} 
 
private void mnPlayperiod_Click() 
{ 
   _playctrl.DvdController.PlayPeriodInTitleAutoStop(1, 30, 120); 
} 
 
private void mnPlayPrevChapter_Click() 
{ 
   _playctrl.DvdController.PlayPrevChapter(); 
} 
 
private void mnPlaytitle_Click() 
{ 
   _playctrl.DvdController.PlayTitle(1); 
} 
 
private void mnReplayChapter_Click() 
{ 
   _playctrl.DvdController.ReplayChapter(); 
} 
 
private void mnResume_Click() 
{ 
   _playctrl.DvdController.Resume(); 
} 
 
private void mnReturnfromsubmenu_Click() 
{ 
   _playctrl.DvdController.ReturnFromSubmenu(); 
} 
 
private void mnSelectAndActivateButton_Click() 
{ 
   _playctrl.DvdController.SelectAndActivateButton(1); 
} 
 
private void mnSelectAtPosition_Click() 
{ 
   _playctrl.DvdController.SelectAtPosition(10, 10); 
} 
 
private void mnSelectButton_Click() 
{ 
   _playctrl.DvdController.SelectButton(1); 
} 
 
private void mnSelectRelativeButton_Click() 
{ 
   _playctrl.DvdController.SelectRelativeButton(DVDRelativeButton.Right); 
} 
 
private void mnSetDVDDirectory_Click() 
{ 
   _playctrl.DvdController.DVDDirectory = @"e:\video_ts"; 
} 
 
private void mnShowMenu_Click() 
{ 
   _playctrl.DvdController.ShowMenu(DVDMenuId.Root); 
} 
 
private void mnStillOff_Click() 
{ 
   _playctrl.DvdController.StillOff(); 
} 
 
private void mnStop_Click() 
{ 
   _playctrl.DvdController.Stop(); 
} 
 
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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© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.

Leadtools.Multimedia Assembly

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