HDR metadata is incorrect for display above 1000 nits

[ConfessedCandy]

Operating System Info

Windows 11

Other OS

No response

OBS Studio Version

30.1.2

OBS Studio Version (Other)

No response

OBS Studio Log URL

https://obsproject.com/logs/myKZN4D7QMbjgq9e

OBS Studio Crash Log URL

No response

Expected Behavior

After recording an HDR video, the Mastering display luminance and Maximum Content Light Level should be 1499 (my displays peak brightness). The Maximum Frame-Average Light Level should also be a normal amount

Current Behavior

The Mastering display luminance max, Maximum Content Light Level, and Maximum Frame-Average Light Level are set to 1000

Steps to Reproduce

1. Connect a display with more than 1000 nits peak brightness, enable hdr in windows and then set the following settings in obs
2. Settings > Advanced > Color Format > P010
3. Settings > Advanced > Color Space > Rec 2100 (HLG)
4. Settings > Output > Recording > Output Mode > Advanced
5. Settings > Output > Recording > Video Encoder to NVIDIA NVENC HEVC
6. Settings > Output > Recording > Profile > main10
7. Start and finish a recording

Anything else we should know?

The HDR Nominal Peak level in the advanced settings tab seems to change nothing after checking my video files with MediaInfo.

Additionally, i'm not sure if this is a bug, The Mastering display color primaries are set to Display P3 which Youtube says is not a supported format for delivery to consumer electronics. This should instead be set to the display's color primaries

Here's a sample recoding that has the issues outlined https://github.com/obsproject/obs-studio/assets/18044537/7117b129-8cff-4c8a-8912-c9c8aef8cf95