Video Optimization: Cropping

[swissspidy]

Feature Description

We should be able to cut off-screen parts of videos upon request (cropping the visible parts of the image).

Example use cases:

• A video element is partially off canvas
• Video is scaled/zoomed in the editor

Alternatives Considered

Additional Context

https://ffmpeg.org/ffmpeg-filters.html#crop

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Acceptance Criteria

Implementation Brief

[spacedmonkey]

Is this possible with ffmpeg.wasm? I can't see options in the docs for this. I may have missed it.

[swissspidy]

Yes, ffmpeg supports cropping: https://ffmpeg.org/ffmpeg-filters.html#crop

[spacedmonkey]

To confirm, we mean, cropping the image or cropping the video length? Or both?

[swissspidy]

Cropping the visible image.

Cropping the length (trimming) is something for waay in the future.