获取 音频的 大小 和 时长

pom.xml  依赖下载  两个都可

<!--获取文件时长的jar-->
第一个：
<dependency>
    <groupId>com.github.dadiyang</groupId>
    <artifactId>jave</artifactId>
    <version>1.0.5</version>
</dependency>
------------------------------------------
或者  第二个：
<dependency>
    <groupId>org</groupId>
    <artifactId>jaudiotagger</artifactId>
    <version>2.0.3</version>
</dependency>

--------------------------------------------------------------------------------------------

long length = file.length();
getFormatSize(length);

try {
    MP3File f = (MP3File) AudioFileIO.read(file);
    MP3AudioHeader audioHeader = (MP3AudioHeader)f.getAudioHeader();
    System.out.println(audioHeader.getTrackLength());
} catch(Exception e) {
    e.printStackTrace();
}

public static String getFormatSize(double size) {
    double kiloByte = size/1024;
    if(kiloByte < 1) {
        return size + "Byte(s)";
    }

    double megaByte = kiloByte/1024;
    if(megaByte < 1) {
        BigDecimal result1 = new BigDecimal(Double.toString(kiloByte));
        return result1.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() + "KB";
    }

    double gigaByte = megaByte/1024;
    if(gigaByte < 1) {
        BigDecimal result2  = new BigDecimal(Double.toString(megaByte));
        return result2.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() + "MB";
    }

    double teraBytes = gigaByte/1024;
    if(teraBytes < 1) {
        BigDecimal result3 = new BigDecimal(Double.toString(gigaByte));
        return result3.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() + "GB";
    }
    BigDecimal result4 = new BigDecimal(teraBytes);
    return result4.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() + "TB";
}

转载于:https://www.cnblogs.com/jia-0112/p/11365324.html