audio mapping in ffmpeg
<p>I have a video file with audio in only one channel, left. </p>

<p>I'd like to use the ffmpeg <code>-map_channel</code> option to map that audio so that it appears in both the L&amp;R channels. </p>

<p>what would the ffmpeg command for that look like?</p>

<pre><code>ffmpeg -i INPUT.mov -c:v copy -c:a copy -map_channel 0.1.0 -map_channel 0.1.0 OUTPUT.mov
</code></pre>

<p>isn't working. The audio is still in the left channel only. </p>