user14588: I want to make a fade out in a video, using the afade audio filter.
Here's my command:
ffmpeg -i VIDEO06.mp4 -c:v copy -af afade=t=out:curve=hsin:st=00:0:30:duration=00:00:10 VIDEO06-faded.mp4

But appearantly that's wrong, because ':' separates the filter arguments.
How can I specify the time in H:M:S format (here's ffmpeg's duration syntax) within the params? Or how can I escape the colon?

user1871: Enclose the time argument in single quotes and escape the colons within.
So,
afade=t=out:curve=hsin:st='00\:0\:30':d='00\:00\:10'


14588: <p>I want to make a fade out in a video, using the <a href="http://ffmpeg.org/ffmpeg-filters.html#afade" rel="nofollow noreferrer">afade</a> audio filter.</p>

<p>Here's my command:</p>

<pre><code>ffmpeg -i VIDEO06.mp4 -c:v copy -af afade=t=out:curve=hsin:st=00:0:30:duration=00:00:10 VIDEO06-faded.mp4
</code></pre>

<p>But appearantly that's wrong, because <code>':'</code> separates the filter arguments.</p>

<p>How can I specify the time in H:M:S format (here's <a href="http://ffmpeg.org/ffmpeg-utils.html#time-duration-syntax" rel="nofollow noreferrer">ffmpeg's duration syntax</a>) within the params? Or how can I escape the colon?</p>
 1871: <p>Enclose the time argument in single quotes and escape the colons within.</p>

<p>So,</p>

<pre><code>afade=t=out:curve=hsin:st='00\:0\:30':d='00\:00\:10'
</code></pre>
