B4J Code Snippet On-the-fly snippet to convert video to audio file

Put the video file to be converted in the Objects folder of the app

'Non-UI application (console / server application)
#Region Project Attributes
    #CommandLineArgs:
    #MergeLibraries: True
#End Region

#AdditionalJar: jave/jave-core-3.3.1
#AdditionalJar: jave/jave-nativebin-win64-3.3.1
#AdditionalJar: jave/slf4j-api-2.0.0
#AdditionalJar: jave/slf4j-nop-2.0.0
Sub Process_Globals
    
End Sub

Sub AppStart (Args() As String)
    Log("Converting...")

    Dim videoFile As String=File.Combine(File.DirApp,"InputVideo.mp4")
    Dim audioFile As String=File.Combine(File.DirApp,"outputAudio.mp3")
    
    Log($" Video converted: ${(Me).As(JavaObject).RunMethod("convertV2A",Array As String(videoFile,audioFile))}"$)
    StartMessageLoop
End Sub

#if java
import java.io.*;
import ws.schild.jave.encode.AudioAttributes;
import ws.schild.jave.encode.EncodingAttributes;
import ws.schild.jave.Encoder;
import ws.schild.jave.MultimediaObject;
import ws.schild.jave.info.MultimediaInfo;

 
  static public boolean convertV2A(String vFile, String aFile){ 
        boolean succeeded=false; 
        try {                                                         
         File source = new File(vFile);                         
         File target = new File(aFile);                         
                                                                      
         //Audio Attributes                                       
         AudioAttributes audio = new AudioAttributes();             
         audio.setCodec("libmp3lame");                               
         audio.setBitRate(128000);                                   
         audio.setChannels(2);                                       
         audio.setSamplingRate(44100);                               
                                                                    
         //Encoding attributes                                       
         EncodingAttributes attrs = new EncodingAttributes();       
         attrs.setOutputFormat("mp3");                                     
         attrs.setAudioAttributes(audio);                           
                                                                    
         //Encode                                                   
         Encoder encoder = new Encoder();           
         encoder.encode(new MultimediaObject(source), target, attrs);
         succeeded = true;                                                               
        } catch (Exception ex) {                                     
         ex.printStackTrace();                                       
         succeeded = false;           
    
    }
    return succeeded;
    }
    
#End If

See: https://github.com/a-schild/jave2/tree/master#converting-any-audio-to-mp3