AudioProcessors Property (PlayCtrl)

Visual Basic
C#
C++/CLI

'Declaration
 
Public ReadOnly Property AudioProcessors As AudioProcessors

'Usage
 
Dim instance As PlayCtrl
Dim value As AudioProcessors
 
value = instance.AudioProcessors

public AudioProcessors AudioProcessors {get;}

public:
property AudioProcessors^ AudioProcessors {
   AudioProcessors^ get();
}

Property Value

An AudioProcessors collection object representing the available audio processors.

Gets the AudioProcessors collection object, containing registered audio processors. This AudioProcessors object is used to enumerate the available video and audio processing transforms.

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
Imports Leadtools.MediaFoundation
Imports LeadtoolsMediaFoundationExamples.Fixtures

Public _result As Boolean = False
Public _form As PlayCtrlForm = New PlayCtrlForm()
Public Sub ProcessorsExample()
   ' reference the convert control
   Dim playctrl As PlayCtrl = _form.PlayCtrl

   ' input and output files
   Dim inFile As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_Source.avi")

   Try
      ' disable auto start
      playctrl.AutoStart = False

      ' set the event handler for state changes
      AddHandler playctrl.StateChanged, AddressOf PlayCtrl_StateChanged
      ' set source file
      playctrl.SourceFile = inFile

      ' if we have a video stream
      If (playctrl.AllowedStreams And StreamFormatType.Video) = StreamFormatType.Video Then
         ' add the first video processor for playback
         playctrl.SelectedVideoProcessors.Add(playctrl.VideoProcessors(0))
         Dim vproc As Processor = playctrl.SelectedVideoProcessors(0)

         ' set the video processor properties
         If vproc.HasDialog(ProcessorDlg.Properties) Then
            vproc.ShowDialog(ProcessorDlg.Properties, _form)
         End If
      End If

      ' if we have an audio stream
      If (playctrl.AllowedStreams And StreamFormatType.Audio) = StreamFormatType.Audio Then
         ' add the first audio processor for playback
         playctrl.SelectedAudioProcessors.Add(playctrl.AudioProcessors(0))
         Dim aproc As Processor = playctrl.SelectedAudioProcessors(0)

         ' set the audio processor properties
         If aproc.HasDialog(ProcessorDlg.Properties) Then
            aproc.ShowDialog(ProcessorDlg.Properties, _form)
         End If
      End If

      ' start the playback now
      playctrl.Run()

      ' 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.
      Do While playctrl.State = PlayState.Running
         Application.DoEvents()
      Loop
   Catch e1 As Exception
      _result = False
   End Try
End Sub

Private Sub PlayCtrl_StateChanged(ByVal sender As Object, ByVal e As StateChangedEventArgs)
   ' set the result to what we expect
   _result = (e.lastState = PlayState.Running AndAlso e.state = PlayState.Stopped)
End Sub

Public NotInheritable Class LEAD_VARS
Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 18\Media"
End Class

using Leadtools;
using Leadtools.MediaFoundation;
using LeadtoolsMediaFoundationExamples.Fixtures;

public bool _result = false;
public PlayCtrlForm _form = new PlayCtrlForm();
public void ProcessorsExample()
{
   // reference the convert control
   PlayCtrl playctrl = _form.PlayCtrl;

   // input and output files
   string inFile = Path.Combine(LEAD_VARS.MediaDir,"ConvertCtrl_Source.avi");

   try
   {
      // disable auto start
      playctrl.AutoStart = false;

      // set the event handler for state changes
      playctrl.StateChanged += new StateChangedEventHandler(PlayCtrl_StateChanged);
      // set source file
      playctrl.SourceFile = inFile;

      // if we have a video stream
      if ((playctrl.AllowedStreams & StreamFormatType.Video) == StreamFormatType.Video)
      {
         // add the first video processor for playback
         playctrl.SelectedVideoProcessors.Add(playctrl.VideoProcessors[0]);
         Processor vproc = playctrl.SelectedVideoProcessors[0];

         // set the video processor properties
         if (vproc.HasDialog(ProcessorDlg.Properties))
            vproc.ShowDialog(ProcessorDlg.Properties, _form);
      }

      // if we have an audio stream
      if ((playctrl.AllowedStreams & StreamFormatType.Audio) == StreamFormatType.Audio)
      {
         // add the first audio processor for playback
         playctrl.SelectedAudioProcessors.Add(playctrl.AudioProcessors[0]);
         Processor aproc = playctrl.SelectedAudioProcessors[0];

         // set the audio processor properties
         if (aproc.HasDialog(ProcessorDlg.Properties))
            aproc.ShowDialog(ProcessorDlg.Properties, _form);
      }

      // start the playback now
      playctrl.Run();

      // 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();
   }
   catch (Exception)
   {
      _result = false;
   }
}

void PlayCtrl_StateChanged(object sender, StateChangedEventArgs e)
{
   // set the result to what we expect
   _result = (e.lastState == PlayState.Running && e.state == PlayState.Stopped);
}

static class LEAD_VARS
{
public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 18\Media";
}

Target Platforms

Reference

PlayCtrl Class
PlayCtrl Members
AudioProcessors Class