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quietvoid / dovi_tool

dovi_tool is a CLI tool combining multiple utilities for working with Dolby Vision.
MIT License
620 stars 59 forks source link

HDR10+ from DV json #260

Closed Gedeon90 closed 11 months ago

Gedeon90 commented 11 months ago

Hi. Firstly congrats for your tool.

Two years later one user asked you about the chances of building HDR10+ from DV , I just wonder if now is possible /easier to enter into this.

I also guess this post (https://www.reddit.com/r/ffmpeg/comments/14bbelj/so_you_can_convert_dolby_vision_to_hdr10_and_visa/) isn't correct at all, but other projects, like libplacebo seems to be able to build HDR10 headers using DV metadata.

It would be really great to get a way to achieve this: DV to HDR10+

Thanks!

quietvoid commented 11 months ago

HDR10+ needs the brightness histogram, which isn't possible to compute solely from Dolby Vision metadata. It would always require measuring the actual video brightness, which is out of scope for this project.