java 从视频里面提取音频批量

今天药忘吃喽~ 2023-01-14 07:00 132阅读 0赞

本功能实现需要用到第三方jar包 jave，JAVE 是java调用FFmpeg的封装工具。

spring boot项目pom文件中添加以下依赖

<dependency>
    			<groupId>ws.schild</groupId>
    			<artifactId>jave-core</artifactId>
    			<version>3.1.1</version>
    		</dependency>
         
         
    		<dependency>
    			<groupId>ws.schild</groupId>
    			<artifactId>jave-nativebin-win64</artifactId>
    			<version>3.1.1</version>
    		</dependency>
         
    		<dependency>
    			<groupId>ws.schild</groupId>
    			<artifactId>jave-nativebin-linux64</artifactId>
    			<version>3.1.1</version>
    		</dependency>

Java单类实现代码，复制到Spring boot项目中

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;
    
    //java项目www.fhadmin.org
    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");
        }
     
     
     
     
    }

![wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==][wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw]

运行结果截图

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDk4NjcxMw_size_16_color_FFFFFF_t_70][]

![20210416112537502.png][]

[wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw]: 
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDk4NjcxMw_size_16_color_FFFFFF_t_70]: /images/20221022/1c4ea4e2859f42288205106b96628fa2.png
[20210416112537502.png]: /images/20221022/2496db0957c84e799dc628e870568ea8.png