title: How add scale in my ffmpeg command
body: <p>i want convert video from any format to mp4. so i  am using command:
  <strong>ffmpeg -i ttt.mp4 -vcodec copy -acodec copy test.mp4</strong>
  this is working perftectly but now i also add scale in this -s 320:240.</p>
  
  <p>There also many other command for convert LIKE :
  ffmpeg -i  inputfile.avi  -s 320x240  outputfile.avi</p>
  
  <p>but after convert by this command video not play in html5 player</p>
  
  <p>BUT this is not working so tell me in my command how i add scale;</p>
  
  <p>So please provide me solution for this .</p>
  
  <p>Thanks in advance.</p>