title: How to input only part of the video file in ffmpeg
body: <p>I'm using ffmpeg in order to process videos.</p>
  
  <pre><code>ffmpeg -i C:\test.mp4 [rest of the command]
  </code></pre>
  
  <p>When I use above command it process whole video. How can I select a paticular part of the video and process?</p>