java仅用30行代码就实现了视频转音频的批量转换

<!-- https: //mvnrepository.com/artifact/ws.schild/jave-core -->

     <dependency>

         <groupid>ws.schild</groupid>

         <artifactid>jave-core</artifactid>

         <version> 3.1 . 1 </version>

     </dependency>

  <!-- 以下依赖根据系统二选一 -->

  <!-- win系统平台的依赖 -->

     <dependency>

         <groupid>ws.schild</groupid>

         <artifactid>jave-nativebin-win64</artifactid>

         <version> 3.1 . 1 </version>

     </dependency>

  <!-- linux系统平台的依赖 -->

     <dependency>

         <groupid>ws.schild</groupid>

         <artifactid>jave-nativebin-linux64</artifactid>

         <version> 3.1 . 1 </version>

     </dependency>

import ws.schild.jave.encoder;

import ws.schild.jave.encoderexception;

import ws.schild.jave.multimediaobject;

import ws.schild.jave.encode.audioattributes;

import ws.schild.jave.encode.encodingattributes;

import java.io.file;

import java.util.arrays;

public class videotoaudio {

     //要输出的音频格式

     private static string outputformat= "mp3" ;

     /**

      * 获得转化后的文件名

      * @param sourcefilepath : 源视频文件路径

      * @return

      */

     public static string  getnewfilename(string sourcefilepath) {

         file source = new file(sourcefilepath);

         string filename=source.getname().substring( 0 , source.getname().lastindexof( "." ));

         return filename+ "." +outputformat;

     }

     /**

      * 转化音频格式

      * @param sourcefilepath : 源视频文件路径

      * @param targetfilepath : 目标音乐文件路径

      * @return

      */

     public static void transform(string sourcefilepath, string targetfilepath) {

         file source = new file(sourcefilepath);

         file target = new file(targetfilepath);

         // 设置音频属性

         audioattributes audio = new audioattributes();

         audio.setcodec( null );

         // 设置转码属性

         encodingattributes attrs = new encodingattributes();

         attrs.setoutputformat(outputformat);

         attrs.setaudioattributes(audio);

         try {

             // 音频转换格式类

             encoder encoder = new encoder();

             multimediaobject mediaobject= new multimediaobject(source);

             encoder.encode(mediaobject, target, attrs);

             system.out.println( "转换已完成..." );

         }  catch (encoderexception e) {

             e.printstacktrace();

         }

     }

     /**

      * 批量转化音频格式

      * @param sourcefolderpath : 源视频文件夹路径

      * @param targetfolderpath : 目标音乐文件夹路径

      * @return

      */

     public static void batchtransform(string sourcefolderpath, string targetfolderpath) {

         file sourcefolder = new file(sourcefolderpath);

         if (sourcefolder.list().length!= 0 ){

             arrays.aslist(sourcefolder.list()).foreach(e->{

               transform(sourcefolderpath+ "\\" +e, targetfolderpath+ "\\" +getnewfilename(e));

             });

         }

     }

     public static void main(string[] args) {

         batchtransform( "c:\\users\\tarzan\\desktop\\video" , "c:\\users\\tarzan\\desktop\\audio" );

     }

}