obsproject / obsproject/obs-studio

Segmentation fault when switching off a scene that contains a VLC Video Source playing Subtitles.

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area/dependency issue/confirmed platform/linux
Dominant language
C
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Description

Operating System Info

Ubuntu 22.04

OBS Studio Version

29.0.0

OBS Studio Log URL

https://obsproject.com/logs/XduMPo1FucI2nakF

OBS Studio Crash Log URL

https://obsproject.com/logs/XduMPo1FucI2nakF

Expected Behavior

OBS switches scenes.

Current Behavior

OBS crashed while switching scenes.

Steps to Reproduce
  1. Create two scenes, one contains nothing, the other contains a single VLC Video Source
  2. Have the VLC Video Source play a file that contains embedded text subtitles.
  3. Once the subtitles have displayed, switch to the blank scene. OBS will freeze indefinitely or seg-fault.
    ...
Anything else we should know?

I updated from OBS 27 to 29 today and also switch from the Snap install to the Apt install at the same time, this only started occurring when I did that.
I have a core dump not sure if you need it or where to upload it.
Example video file I'm having trouble with is attached here, it has multiple embedded fonts which could contribute to the issue possibly.
trigun2.zip

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 crash using the listed Ubuntu 22.04 setup, two scenes, the VLC Video Source, and the attached subtitle-bearing video. Inspect the OBS log and crash log linked in the issue, then verify that switching away after subtitles appear no longer freezes or segfaults.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
desktop
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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