title: 音频mp3和amr格式转换
tags:
- java
- mp3
- amr
一、问题
目前大部分java方式操作音频格式转换的都需要安装和配置ffmpeg文件，否则可能会报编/解码器丢失的错误。该方式在本机执行还可以，但是真正运用到生产，由于涉及到扩缩容等问题，真要在生产环境再手动安装ffmpeg就很不方便。该种方式可参考https://github.com/dadiyang/jave
这里推荐一种配置pom依赖的方式解决音频文件转换问题，亲测可用。
二、添加依赖
<!-- jave-core -->
<dependency>
<groupId>ws.schild</groupId>
<artifactId>jave-core</artifactId>
<version>2.4.4</version>
</dependency>
<!-- 操作系统编码器包 选择对应环境-->
<!-- MacOS -->
<dependency>
<groupId>ws.schild</groupId>
<artifactId>jave-native-osx64</artifactId>
<version>2.4.4</version>
</dependency>
<!-- Linux -->
<dependency>
<groupId>ws.schild</groupId>
<artifactId>jave-native-linux64</artifactId>
<version>2.4.4</version>
</dependency>
<!-- Windows -->
<dependency>
<groupId>ws.schild</groupId>
<artifactId>jave-nativebin-win64</artifactId>
<version>2.4.4</version>
</dependency>
三、格式转换
public static void main(String[] args) {
File source = new File("java/src/main/java/com/mdl/java/audio/ori-amr.amr"); // 源amr文件
File mp3Target = new File("java/src/main/java/com/mdl/java/audio/new-p3.mp3"); // 目标mp3文件
convertAudio(source, mp3Target);
System.out.println("conversion finished amr -> mp3");
File amrTarget = new File("java/src/main/java/com/mdl/java/audio/new-amr.amr"); // 目标amr文件
convertAudio(mp3Target, amrTarget);
System.out.println("conversion finished mp3 -> amr");
}
public static void convertAudio(File source, File target) {
AudioAttributes audio = new AudioAttributes();
audio.setCodec("libmp3lame");
EncodingAttributes attrs = new EncodingAttributes();
attrs.setFormat("mp3");
attrs.setAudioAttributes(audio);
Encoder encoder = new Encoder();
try {
MultimediaObject multimediaObject = new MultimediaObject(source);
encoder.encode(multimediaObject,target, attrs);
} catch (IllegalArgumentException | EncoderException e) {
e.printStackTrace();
}
}