title: Capturing FFmpeg output in python before storing it
body: <p>I am trying to capture output from ffmpeg and storing that in memory, deciding at a later stage if I want to write it to disk.</p>
  
  <p>Is it possible to analyze the output of ffmpeg before writing it onto the HDD?</p>
  
  <p>Since I do not really know how to approach the thing, I cannot yet provide a code example.</p>
  
  <p>EDIT:
  Yes, I am trying to write small chunks of the captured avi/mp4 to RAM and analyze them before writing to disc. </p>