Saving webcam frame from nokhwa crate fails about image HOT 2 CLOSED

Saving a JPEG image requires that the "jpeg" feature is enabled. This is one of the default features, so normally you wouldn't have to do anything to enable it, but nokhwa specifically imports image will all default features disabled...

You would expect that importing a crate directly in your Cargo.toml would override that and give you all default features. Unfortunately, the crates.io version of nokhwa still uses the outdated 0.23.x image branch rather than the current 0.24.x, so your binary ends up with both the stripped down version of image 0.23 and the full version of 0.24 leading to the weird behavior you observe.

If you switch your Cargo.toml to say image = "0.23" or switch to the GitHub version of nokhwa I think your code should work

(Sidenote: the invalid type error you got with seemingly identical types is a common gotcha in Rust caused by using two different versions of the same crate.)

from image.

Thanks for the insight! That takes away some of my confusion :)

I guess we can close this one...

from image.