[Feature Request] Add tone mapping for rendering thumbnails of HDR videos

[Klaus1189]

I have several HDR videos and the generated thumbnails look washed out.
Is there already a tone map feature available in Icaros? Of so, please let me know how I can enable it.
Otherwise I beg for adding this functionality. It does not have to be super high end tone mapping, just simple, so the picture doesn't look "washed out".

[Xanashi]

I've looked into this and there currently isn't a good solution available for Icaros,
but I'll be sure to keep an eye out for possible solutions.

[cafevincent]

I take it that this is not in 3.3.3 final. Really desperate to get onboard the HDR train but so far I have to re-encode everything to SDR because of this thumbnail issue, or face being left out of the 4k train completely. May I ask about the bad solutions you've considered?

[Xanashi]

You're correct. HDR is still not supported in Icaros.
When I last commented here, I hadn't found any solutions to adding HDR support.
I'm currently working on a solution with the FFmpeg avfilters: zscale and tonemap.
It's not quite there yet, and I'm still considering other options.

Although it's not a proper solution, it may be easier for you to just take an HDR screenshot of a good frame in the video,
and add it as a cover to the file. That would allow you to have proper colors in your thumbnails and avoid converting your
videos to SDR.

[clsid2]

FFmpeg swscale is currently being rewritten and it looks like it is getting tonemapping ability.

[Xanashi]

That's incredible news! Thank you for letting me know, I'll be sure to keep an eye on the development.