提取方法：1、spring boot项目pom文件中添加对应依赖；2、Java单类实现代码，复制到Spring boot项目中；3、运行结果即可。
java中从视频里面提取音频的方法
1、spring boot项目pom文件中添加以下依赖
ws.schild jave-core 3.1.1 ws.schild jave-nativebin-win64 3.1.1 ws.schild jave-nativebin-linux64 3.1.1
2、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"); } }
3、运行结果截图
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