user30583: I want to make a video 'wide', so the width is increased and the height stays the same as of the input image. I use the following command: ffmpeg -i test.mp4 -vf scale="1000:200" output.mp4. It just does not work. The most interesting thing that it works with png images but not with videos.
Example: video before:
After: 

user36605: I resolved this issue by setting the attached SAR (Sample/Storage Aspect Ratio):
ffmpeg -i test.mp4 -vf scale=1000:200,setsar=1 output.mp4


30583: <p>I want to make a video 'wide', so the width is increased and the height stays the same as of the input image. I use the following command: <code>ffmpeg -i test.mp4 -vf scale=&quot;1000:200&quot; output.mp4</code>. It just does not work. The most interesting thing that it works with png images but not with videos.
Example: video before:<a href="https://i.stack.imgur.com/Gg6M8.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Gg6M8.jpg" alt="enter image description here" /></a></p>
<p>After: <a href="https://i.stack.imgur.com/mNs43.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mNs43.png" alt="enter image description here" /></a></p>
 36605: <p>I resolved this issue by setting the attached SAR (Sample/Storage Aspect Ratio):</p>
<pre><code>ffmpeg -i test.mp4 -vf scale=1000:200,setsar=1 output.mp4
</code></pre>
