user19236: I accidentally enabled a datestamp "feature" on my camera and now all my videos have the date embedded.
What's the best way to remove those datestamps?
I'm editing a compilation of the videos with kdenlive, so I would only need to remove the datestamp from the parts of the videos I'm using or the final compilation, whatever gives best results.

user525: Use ffmpeg (download a static build for your operating system) and its delogo filter, which will try to cover up a logo or watermark by interpolating neighboring pixels.
ffmpeg -i input.mp4 -vf "delogo=x=100:y=100:w=150:h=20" output.mp4

Here, x and y specify the top left coordinates of the “masking” rectangle, and w/h specify its size. You can add the show=1 option to help locate that rectangle.
If you want to play with the filter values, you can use ffplay to directly show the result:
ffplay -f lavfi -i "movie=input.mp4,delogo=x=100:y=100:w=150:h=20:show=1"


19236: <p>I accidentally enabled a datestamp "feature" on my camera and now all my videos have the date embedded.</p>

<p>What's the best way to remove those datestamps?</p>

<p>I'm editing a compilation of the videos with kdenlive, so I would only need to remove the datestamp from the parts of the videos I'm using or the final compilation, whatever gives best results.</p>
 525: <p>Use <a href="http://ffmpeg.org/" rel="noreferrer"><code>ffmpeg</code></a> (download a static build for your operating system) and its <a href="https://ffmpeg.org/ffmpeg-filters.html#delogo" rel="noreferrer"><code>delogo</code></a> filter, which will try to cover up a logo or watermark by interpolating neighboring pixels.</p>

<pre><code>ffmpeg -i input.mp4 -vf "delogo=x=100:y=100:w=150:h=20" output.mp4
</code></pre>

<p>Here, <code>x</code> and <code>y</code> specify the top left coordinates of the “masking” rectangle, and <code>w</code>/<code>h</code> specify its size. You can add the <code>show=1</code> option to help locate that rectangle.</p>

<p>If you want to play with the filter values, you can use <code>ffplay</code> to directly show the result:</p>

<pre><code>ffplay -f lavfi -i "movie=input.mp4,delogo=x=100:y=100:w=150:h=20:show=1"
</code></pre>
