libobs: Add obs_source_info.filter_add

Browse Source

If there is filter_remove, it is reasonable to expect that there is also
filter_add. filter_add also enables filters to attach signal handlers
on the parent, and disconnect them in filter_remove.

...

This commit is contained in:

500 Internal Server Error

Gitea Version: 1.28.0+dev-477-g8b6ad49a5f