title: Canplayer won't replay candump files
body: <p>I'm trying to use canplayer to replay some candump files, with no success. When I try to run the canplayer it just executes and returns, giving me no clue of what is happening. </p>
  
  <p>What I've tried up to now: </p>
  
  <p>Setup 1 </p>
  
  <ul>
  <li>Set up a vcan interface </li>
  <li>Sent data to the vcan interface using cansend and cangen, with success (verified with candump). </li>
  <li>Recorded a candump file from vcan0 when running cangen. Recorded files with absolute timestamps (-t a) and without. </li>
  <li>Tried using canplayer to reproduce the file. Tried using several arguments, no avail. canplayer just returns immediately without any complaint. If I mess up the the file or arguments it complains. </li>
  </ul>
  
  <p>Setup 2 </p>
  
  <ul>
  <li>Connected 2 PEAK CAN USB adapter devices to the PC. </li>
  <li>Connected the adapters to each other using a 120ohm terminated cable </li>
  <li>Started cangen pointing to can0 and verified that the messages got to can1 using candump </li>
  <li>Recorded candump files from can0 interface. </li>
  <li>Tried using canplayer to reproduce the file., with no success. </li>
  </ul>
  
  <p>I've tried these tests on two different machines, both running Ubuntu 12.04, with the same results. </p>
  
  <p>Do you know what might be the cause of it?</p>