java获取视频时长_Java获取视频的大小、时长

前端上传视频之后，根据上传的视频文件获取视频的大小和时长

1、获取视频时长

private String ReadVideoTime(File source) {

Encoder encoder = new Encoder();

String length = "";

try {

MultimediaInfo m = encoder.getInfo(source);

long ls = m.getDuration()/1000;

int hour = (int) (ls/3600);

int minute = (int) (ls%3600)/60;

int second = (int) (ls-hour*3600-minute*60);

length = hour+"'"+minute+"''"+second+"'''";

} catch (Exception e) {

e.printStackTrace();

}

return length;

}

2、获取视频大小

/**

* 获取视频大小

* @param source

* @return

*/

private String ReadVideoSize(File source) {

FileChannel fc= null;

String size = "";

try {

@SuppressWarnings("resource")

FileInputStream fis = new FileInputStream(source);

fc= fis.getChannel();

BigDecimal fileSize = new BigDecimal(fc.size());

size = fileSize.divide(new BigDecimal(1048576), 2, RoundingMode.HALF_UP) + "MB";

} catch (FileNotFoundException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

} finally {

if (null!=fc){

try{

fc.close();

}catch(IOException e){

e.printStackTrace();

}

}

}

return size;

}

***获取视频大小的时候，由于用到了流，使用完之后一定要及时的关闭流，避免无法删除视频文件***