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ISP downscaling not working after Oct 2022 firmware #1770

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tmm1 opened this issue Jan 8, 2023 · 1 comment

tmm1 commented Jan 8, 2023 •

edited

I'm using ISP to upload and downscale yuv420p images, using https://patchwork.ffmpeg.org/project/ffmpeg/patch/20190903010230.96236-21-ffmpeg@tmm1.net/

After bfbd42e ("firmware: isp: Run ISP without hi-res output buffer"), this is no longer working

I confirmed that the firmware release before that commit still works. After that commit, I keep feeding in data to the ISP and get no output.

According to @6by9:

Libcamera wants to be able to generate stats without generating output pixels. It should really be checking that at least one output is active before doing anything, but I suspect it isn't and therefore you don't get the 1 in 1 out behaviour you're expecting.

The text was updated successfully, but these errors were encountered:

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tmm1 commented Oct 9, 2023

@6by9 @popcornmix is there anything I can do to help fix this regression?

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