title: FFMPEG mux video and audio (from another video) - mapping issue
body: <p>I would like to place the audio from a video to another video without an audio (in one command):</p>
  
  <pre><code>ffmpeg.exe -i video1_noAudio.mov -i video2_wAudio.mov -vcodec copy -acodec copy video1_audioFromVideo2.mov
  </code></pre>
  
  <p>I guess "-map" is the correct way to do it but I got confused with it.</p>
  
  <p>Can you suggest how to resolve it?</p>