【Android】amr文件时长

一、文件时长获取

String curAudioFile = “XXX.amr”;

MediaPlayer mediaPlayer = new MediaPlayer();
mediaPlayer.setDataSource(curAudioFile);
mediaPlayer.prepare();
int nDuration0 = mediaPlayer.getDuration();// 单位毫秒

二、文件时长转换

private static String getAudioDuration(int nDuration0) {
DecimalFormat df = new DecimalFormat("#.00");
String fileSizeString = "";
String wrongSize = "0ms";
if (nDuration0 == 0) {
return wrongSize;
}
if (nDuration0 < 1000) {
fileSizeString = df.format((double) nDuration0) + "ms";
} else if (nDuration0 < 60000) {
fileSizeString = df.format((double) nDuration0 / 1000) + "s";
} else if (nDuration0 < 3600000) {
fileSizeString = df.format((double) nDuration0 / 60000) + "min";
} else {
fileSizeString = df.format((double) nDuration0 / 3600000) + "h";
}
return fileSizeString;
}