title: ffmpeg: Transcoding multiple input files to multiple output files with single command
body: <p>I want to convert three files with a <strong>single command</strong>. I used the following command:</p>
  <p><code> -i &quot;C:\fil1.mp4&quot; -i &quot;C:\file2.mp4&quot; -i &quot;C:\file3.mp4&quot; -acodec libmp3lame -ab 32k -ar 22050 -ac 2 -b:v 128k -r 20 -s 176x144 -y file1.mp4 -acodec libmp3lame -ab 32k -ar 22050 -ac 2 -b:v 128k -r 20 -s 176x144 -y file2.mp4 -acodec libmp3lame -ab 32k -ar 22050 -ac 2 -b:v 128k -r 20 -s 176x144 -y file3.mp4</code></p>
  <p>but it converts the first files with names <strong>fil1.mp4</strong>, <strong>fil2.mp4</strong>, <strong>fil3.mp4</strong> but I want <strong>all</strong> files should be convert with its output file names.</p>