title: ffmpeg in not working in php exec()
body: <p>FFMPEG is not working in exec but its working when using ssh on that us
  but other commands work with exec !</p>
  
  <p>Here is the code :</p>
  
  <pre><code>exec("ffmpeg -i /home/setare/public_html/kanalmanager/wt/230307754.mp4 -i /home/setare/public_html/kanalmanager/wt/230307754_logo.png \
   -filter_complex  "[1]colorchannelmixer=aa=1,scale=iw*1.4:-1[wm];[0][wm]overlay=x=(W-w)/2:y=(H-h)/2" /home/setare/public_html/kanalmanager/wt/230307754_send.mp4 -y");
  </code></pre>