Slow centred push-in on a still image with FFmpeg zoompan

Guide ID: art_01M6TXZ0GAVHZWDEYJBVA97586

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Guide title

Slow centred push-in on a still image with FFmpeg zoompan

Coverage

For editors and motion designers who want a simple linear push-in from one still image or a short clip without a timeline editor. It ends with a way to size the zoom so it lands on your chosen limit without stretching the picture. It comes from the FFmpeg manual and filter source and was not run.

Example

A hypothetical, not-run example: a 16:9 photo becomes a five-second 1280 by 720 push-in at 25 frames per second, ending at 1.5x.

Useful starting points

• Check that the output size has the same width-to-height ratio as your source; otherwise faces look wide or narrow and circles turn oval.
• If the clip ends while still zooming, the per-frame step is too small for the number of frames; recompute it from the limit and the frame count.
• The duration setting counts frames, not seconds, so a clip of the wrong length usually means that number was not multiplied by the frame rate.