title: Get Mp3 total duration in seconds (or millisecond) using Media Foundation
body: <p>I'm developing  an Universal app for windows 8.1 and wp 8.1</p>
  
  <p>and I write a little c++ source for decoding mp3 file, Now I'd like to find a way to get total time length before I've decoded the file using media foundation api.</p>
  
  <p>Thanks</p>