obsproject / obsproject/obs-studio

Banding when using "Use 10 bit" checkbox in Blackmagic Device Source

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Dominant language
C
Stars
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Forks
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Avg merge
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Merged PRs (30d)
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Description

Operating System Info

Other

Other OS

macOS Tahoe 26.0.1

OBS Studio Version

32.0.2

OBS Studio Version (Other)

No response

OBS Studio Log URL

Nothing

OBS Studio Crash Log URL

No response

Expected Behavior

No banding (or at least less, not more) when using 10bit checkbox

Current Behavior

So as said in the title, here's what I see without the checkbox

Image

And with it

Image

Here's my Desktop Video config

Image

Image

Here's my OBS device config

Image

Dunno what else should I show there.

Appreciate for the project!

Steps to Reproduce

Just enable the 10bit checkbox in Blackmagic device

Anything else we should know?

No response

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the issue in the Blackmagic Device Source with the 10bit checkbox both disabled and enabled, using the provided Desktop Video and OBS device configurations as reference. Trace the entry point for that checkbox and compare the resulting video paths; done means enabling 10-bit no longer introduces additional banding.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
audio-video-rtc
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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