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I'm trying to take an image, and apply a slow 'zoom' to the image (think Ken Burns). The animation looks correct, but the image looks extremely low resolution (when the original image is a 5k still). Why is this? Command below:

ffmpeg -loop 1 -f image2 -i 'IMG_8444_edit.jpg' -vf "zoompan=z='zoom+0.001" -c:v libx264 -preset fast -t 5 -crf 22 -s 1920x1080 -y 'zoomout.mp4'
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  • Do you have a sample of the problem that you can post? Dec 15, 2016 at 1:14

1 Answer 1

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zoompan, by default, scales output to 1280x720 (and at 25 fps).

Use

ffmpeg -loop 1 -f image2 -i 'IMG_8444_edit.jpg' -vf "zoompan=z='zoom+0.001:s=WxH,scale=hd1080" -c:v libx264 -preset fast -t 5 -crf 22 -y 'zoomout.mp4'

where WxH is your required output resolution from the filter.

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  • Yes awesome! That was the trick! Question: it looks like the pan zoom filter has some other parameters such as input resolution... If I set that to the size of the still image, would that increase the output quality even further?
    – M Leonard
    Dec 15, 2016 at 20:44
  • No, you can use the input width and height in expressions, but zoompan will work with the original resolution before it resizes.
    – Gyan
    Dec 16, 2016 at 5:16

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