CSI IPU crop

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CSI IPU crop

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emilmyhrman
Contributor IV

Hi,

I'm trying to implement digital zoom of camera image using cropping by IPU. This seems to be already implemented by current BSP (running 3.0.35 kernel) with V4L2 command VIDIOC_S_CROP. But when I try to use this the timings(?) gets wrong with the result that preview stream is showing the same image multiple times but smaller (eg. image is shown 4*2 times when crop set to half width/height) while slowly scrolling.

Has anyone here had any luck with using IPU to implement digital zoom?

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ninglu
Contributor II

i want to implement  the digital zoom function,but hasn't  implemented yet.

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ninglu
Contributor II

hello Emil Myhrman,have you implement  the digital zoom function?

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emilmyhrman
Contributor IV

Hi, unfortunately not, I did some tests but was unable to do the 5MP crop by the IPU, then other tasks got higher priority so it's still on the to-do list.

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi Emil

one can look at cropping/resize examples below

ipu-examples release notes - v0.1

Best regards

igor

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