title: Get Duration of a Video from S3 File
body: <p>I have a Java app (hosted with Elastic Beanstalk) that uses "Fine Uploader" to upload video files directly to Amazon S3.</p>
  
  <p>I'm having issues getting the duration of that uploaded video (preferably duration in seconds)</p>
  
  <p>The only metadata I can get access to tells me the "content-length", which is the size in bytes... but I don't believe that's something that can be used to accurately tell me the duration of the video.</p>
  
  <p>I've seen some people suggest putting the details of the length of the video in a tag before uploading to S3, which is fine, but I don't know how to get the length of a video with the "Fine Uploader".</p>
  
  <p>Any ideas?</p>