v2.4.2 breaks osc on external players

[Bestfast]

Describe the bug
As title says, no osc is showing with 2.4.2. Reverting to 2.2.0 I can see it.
Tried with mpv.net with https://github.com/maoiscat/mpv-osc-modern/

[iwalton3]

#320

Should be a duplicate of the issue above

[iwalton3]

Also would you like me to port the MPV Shim trickplay previews to work with that specific OSC?

[Bestfast]

#320

Should be a duplicate of the issue above

sorry, didn't check for previous issues. my bad.

Also would you like me to port the MPV Shim trickplay previews to work with that specific OSC?

if you could that would help a lot, feel free to close as a duplicate though

[iwalton3]

Here is a version of that osc which uses my thumbnail seek provider: https://github.com/iwalton3/mpv-osc-modern/

[iwalton3]

It you install the latest CI version the above script has been tested and is known to work. Follow the directions in the README. Specifically you need to configure an alternate OSC and install the font.

[iwalton3]

Update 2: I added a compatibility layer so that Jellyfin MPV Shim will do trickplay with any third-party OSC which works with https://github.com/po5/thumbfast.

To do this, just download one of the OSCs, place it in the scripts folder, and disable the thumbnail_osc_builtin option.