adding external subtitles while playing an ISO will fast-forward the video
Environment Information:
OS: OpenSUSE Tumbleweed 20211219 VLC ver: 3.0.16(flatpak)
How to produce:
- install vlc
- play an ISO file
- add a subtitle file
What will happen:
This will fast-forward the video, and you cannot stop it.
What should happen:
The subtitle should just be added and shown normally.
Additional information:
- Also can be reproduced in Windows10(vlc3.0.16 & vlc4.0)
- It would suggest "main demux error: option sub-original-fps does not exist" when you add an subtitle if you run vlc from terminal(check attachment for full output). This error will not show up when you add a subtitle to a normal video file(like .mkv or .mp4).