title: ffmpeg, conversion to flv: how to get better quality?
body: <p><strong>I am using ffmpeg to convert any avi/wmv videos to flv.</strong></p>
  
  <p>My trouble is that the flv result is quite poor: it gives me big pixelitaed boxes.
  I tried to use some -b parameters with no good results:</p>
  
  <p><em>ffmpeg -i 1268459654.wmv -ar 22050 -ab 32 -f flv -s 640x480 x.flv
  ffmpeg -i 1268459654.wmv -ar 22050 -ab 32 -f flv -s 640x480 -b 500k x.f4v</em></p>
  
  <p>I also tried 
  ffmpeg -i 1268459654.wmv -vcodec libx264  -s 360x240  x.mp4</p>
  
  <p>ans got: <em>"Unknown encoder 'libx264'"</em></p>
  
  <p>Any solution for that ?</p>