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AudioCompressor Property

Summary

Gets or sets the audio compressor name.

Syntax

C++

public string AudioCompressor { get; set; }

Public Property AudioCompressor As String

public: 
property String^ AudioCompressor { 
   String^ get(); 
   void set (    String^ ); 
}

Property Value

A string value representing the audio compressor name.

Remarks

An audio compressor is a module or algorithm used to compress audio data. Audio compressors are also known as audio encoders. When the format is selected for the audio stream or the portion of the file holding the audio data will be connected to this compressor before any multiplexer. If this value is undefined (empty string), then the audio stream will be directly connected to a multiplexer. A multiplexer is a module that combines audio and video into one file. Attempting to set this value on a ReadOnly item will result in an error. For more information, refer to the Error Codes.

Example

using Leadtools; 
using Leadtools.Multimedia; 
using LeadtoolsMultimediaExamples.Fixtures; 
 
public bool _result = false; 
public CaptureCtrlForm _form = new CaptureCtrlForm(); 
 
public void TargetFormatsExample() 
{ 
   // reference the capture control 
   CaptureCtrl capturectrl = _form.CaptureCtrl; 
 
   try 
   { 
      // set the video capture device. use your capture device's name here 
      if (capturectrl.VideoDevices["USB"] == null) 
         throw new Exception("No USB video device available"); 
 
      capturectrl.VideoDevices["USB"].Selected = true; 
 
      // set the audio capture device. use your capture device's name here 
      if (capturectrl.AudioDevices["USB"] == null) 
         throw new Exception("No USB audio device available"); 
 
      capturectrl.AudioDevices["USB"].Selected = true; 
 
      // no recompression for video and audio 
      capturectrl.VideoCompressors.Mpeg2.Selected = true; 
      capturectrl.AudioCompressors.AC3.Selected = true; 
 
      // select the DVD target format 
      capturectrl.TargetFormats[TargetFormatType.DVD].Selected = true; 
 
      // get the current selected input 
      int n = capturectrl.TargetFormats.Selection; 
 
      // loop through the target formats and set a different one 
      foreach (TargetFormat t in capturectrl.TargetFormats) 
      { 
         // get the format properties 
         string name = t.Name; 
         string sink = t.Sink; 
         string sinkSubType = t.SinkSubType; 
         string audio = t.AudioCompressor; 
         string video = t.VideoCompressor; 
         string sRecAudio = t.RecommendedAudioCompressor; 
         string sRecVideo = t.RecommendedVideoCompressor; 
         string mux = t.Mux; 
         string avMux = t.AVMux; 
         StreamFormatType sft = t.Streams; 
 
         // if we found the video tuner input 
         if (name == "AVI") 
         { 
            // select it and break 
            t.Selected = true; 
            break; 
         } 
      } 
 
      // check it directly 
      TargetFormatType tft = capturectrl.TargetFormat; 
 
      // set the result to what we expect 
      _result = (tft != TargetFormatType.DVD && n != capturectrl.TargetFormats.Selection); 
   } 
   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 (capturectrl.State == CaptureState.Running) 
      Application.DoEvents(); 
}

Imports Leadtools 
Imports Leadtools.Multimedia 
Imports LeadtoolsMultimediaExamples.Fixtures 
 
Public _result As Boolean = False 
Public _form As CaptureCtrlForm = New CaptureCtrlForm() 
 
Public Sub TargetFormatsExample() 
   ' reference the capture control 
   Dim capturectrl As CaptureCtrl = _form.CaptureCtrl 
 
   Try 
      ' set the video capture device, use your capture device name here 
      If capturectrl.VideoDevices("USB") Is Nothing Then 
         Throw New Exception("No USB video device available") 
      End If 
 
      capturectrl.VideoDevices("USB").Selected = True 
 
      ' set the audio capture device, use your capture device name here 
      If capturectrl.AudioDevices("USB") Is Nothing Then 
         Throw New Exception("No USB audio device available") 
      End If 
 
      capturectrl.AudioDevices("USB").Selected = True 
 
      ' no recompression for video and audio 
      capturectrl.VideoCompressors.Mpeg2.Selected = True 
      capturectrl.AudioCompressors.AC3.Selected = True 
 
      ' select the DVD target format 
      capturectrl.TargetFormats(TargetFormatType.DVD).Selected = True 
 
      ' get the current selected input 
      Dim n As Integer = capturectrl.TargetFormats.Selection 
 
      ' loop through the target formats and set a different one 
      For Each t As TargetFormat In capturectrl.TargetFormats 
         ' get the format properties 
         Dim name As String = t.Name 
         Dim sink As String = t.Sink 
         Dim sinkSubType As String = t.SinkSubType 
         Dim audio As String = t.AudioCompressor 
         Dim video As String = t.VideoCompressor 
         Dim sRecAudio As String = t.RecommendedAudioCompressor 
         Dim sRecVideo As String = t.RecommendedVideoCompressor 
         Dim mux As String = t.Mux 
         Dim avMux As String = t.AVMux 
         Dim sft As StreamFormatType = t.Streams 
 
         ' if we found the video tuner input 
         If name = "AVI" Then 
            ' select it and break 
            t.Selected = True 
            Exit For 
         End If 
      Next t 
 
      ' check it directly 
      Dim tft As TargetFormatType = capturectrl.TargetFormat 
 
      ' set the result to what we expect 
      _result = (tft <> TargetFormatType.DVD AndAlso n <> capturectrl.TargetFormats.Selection) 
   Catch e1 As Exception 
      _result = False 
   End Try 
 
   ' 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 capturectrl.State = CaptureState.Running 
      Application.DoEvents() 
   Loop 
End Sub

Requirements

Target Platforms

Reference

TargetFormat Class

TargetFormat Members

Help Version 19.0.2017.10.27

Leadtools.Multimedia Assembly

Introduction

Getting Started

Namespaces

Leadtools.Multimedia Namespace

Leadtools.Multimedia.Common Namespace

Assemblies