title: How to split flv file by size using FFmpeg or mencoder or smth else?
body: <p>I need to split an flv file into chunks of the known size on linux server. For example my original file is 9Mb and the chunk size is 4Mb. So I should get 3 parts - 4Mb, 4Mb and 1 Mb.</p>
  
  <p>Seems that FFmpeg can split only by time.</p>
  
  <p>Mencoder can start by time (-ss TIME) and finish by size ( -endpos SIZE MB). But if start second of the first chunk is obviously 0, then how can I get start second for next chunks? </p>
  
  <p>Do you have any suggestions?</p>
  
  <p>Thanks in advance.</p>