title: libvlc: Is there a method to get data buffer before decoding?
body: <p>I want to parse mpeg user data and use it for specific purpose.
  I've successufully have been able to get decoded frames from libvlc,
  using libvlc_video_set_callbacks(). But it is pixel data after "decoding".
  I want to get data before decoding, i.e.,  an encoded data buffer.</p>
  
  <p>Is there an API in libvlc?</p>
  
  <p>Thanks.</p>