title: Compression in Android taking long time
body: <p>I am new to Video related operations. I am using [FFMPEG][1] to compress a video in my Android application.</p>
  
  <p>I am trying to compress a video of 50MB to 10MB by executing following command</p>
  
  <pre><code>ffmpeg -y -i /videos/in.mp4 -strict experimental -s 640x480 -r 25 -vcodec mpeg4 -b 150k -ab 48000 -ac 2 -ar 22050 /videos/out.mp4
  </code></pre>
  
  <p>Video compressing successfully, but it taking more than 150 seconds. I am unable find out how to reduce that time.</p>
  
  <p>I want to change this command to complete this process in less time.</p>