Source Resolution Mod 4

General
1

I have Minix Neo U9-H and the latest CoreELEC.

I have noticed that it does not scale mod 4 videos perfectly.

For example if your video is 1920 x 804, you get an artifact on the last bottom line. If you crop the same source mod 8, for example 1920 x 808, it shows it properly.

Any idea if CoreELEC has problems showing mod 4 videos?

2

As far as I know it’s a limitation of the hardware decoder.

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3

Oh, ok, Thanks. So I’m not imagining things. it’s a known issue? Surprised I didn’t see it mentioned here before. It’s a huge thing. Is it a limitation of AmLogic S912? Is there any newer Amlogic that doesn’t have this limitation?

4

Just do a forum search for “bottom line”. You will find a lot posts with the same problem.

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5

Thanks. I looked at the other threads and asked the appropriate question there.

But one question remains and was not answered. Does this happen on all AmLogic hardware?

6

All AML hardware uses the same firmware for video decoding. If you can convince Amlogic to fix it we…

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7

What are the latest news on this after 4 years? Can newer boxes like S905X4 play mod 4 correctly or it’s still the same issue?