Odroid c2 - 1080p HDR To SDR (Tone Mapping?)

You want to look HDR videos, played on odroid(no HDR support) connected to a non HDR TV in HDR quality ?

YMMD

You can't do that with an Odroid C2, as far as I know it uses S905 which doesn't support HEVC 10 bit decoding.

The Coolest S905 supports H.265 10bit hardware decoding, it doesn't support 10bit output.

Thanks for the correction, got confused with the S812

This is a very important issue for S905 models owners.

Number of HDR movies is growing, S905 models can play them, but they look bad - very bright and unnatural colors.

Please implement some HDR to SDR conversion to allow proper output of SDR signal, if possible. Thanks

As 10bit x265 HDR/SDR decoding is done completely in hardware, there is little to nothing that can be done in kodi or libreelec to change it.

The mapping is different if a S905X is used (I have both a S905 and S905X box on a non-hdr TV so I can compare), you might want to try one of these for your purpose.

I'm of the opinion that there's no real way to properly tone map HDR content to SDR.

Perhaps if you use a PC with MadVR, but even then the results aren't that great. It also depends a lot on your TV, and the ability to configure the tone mapping to suit your TV correctly. (which is non-existent, AFAIK, on these boxes)

If you want to play HDR content, you'd better get a HDR display and a player that supports HDR.