VLC and Blu-ray screencaps: ratio issue

[MacEachaidh]

Hi folks,
I'm hoping someone can clear up some confusion I have with screencaps made in VLC from Blu-rays.

I'm running VLC 2.2.4 on Windows 7 x64, using a Samsung LED display stated as 1920 x 1080. I have no issues running Blu-rays and capturing screen images. Typically, I open VLC to fullscreen, then take the capture using the command in VLC. I use this image to calculate the Blu-ray's image ratio.

Correct me if I'm wrong, but shouldn't the resulting image be 1920 x 1080? Some of that may be black matting, depending on the Blu-ray's screen ratio, but the image should still be 1920 x 1080, no?

What I don't understand is that it isn't. The image I get is always 1920 x 1090.

Can anyone explain why this is happening?

Is the image being vertically stretched somehow, either by my display/GPU or by VLC? If I open the image, resize it (as distinct from cropping) to 1080 height, and then calculate the actual image ratio, shouldn't that work correctly?

Thanks for any comments.

[MacEachaidh]

Sorry to bump this, but I suspect once a post gets too far down the list, it's going to keep getting missed.

Does anyone have any ideas, please, on how to make sense of this issue?

Many thanks.

[Lotesdelere]

https://trac.videolan.org/vlc/ticket/16789

[MacEachaidh]

Ah, I see. Thanks for that, Lotesdelere!

I couldn't see how it might be anything I was doing ...