Feature summary
TimedMediaHandler is the "Handler for audio, video and timed text, with format support for WebM, Ogg Theora, Vorbis, srt"
https://www.mediawiki.org/wiki/Extension:TimedMediaHandler
This is essential if a 3rd party wiki wants to use audio or video with playback.
Checklist:
(note unticked items might need to be checked; they haven't because OP doesn't really understand their meanings).
- Passed discussion or already Wikimedia deployed
- Passed security review or already Wikimedia deployed
- Voting CI structure tests
- Runs MediaWiki-CodeSniffer
- Runs phan
- Supports MySQL, SQLite, and Postgres (if there are schema changes)
- GPL v2 or later compatible license
- Extension's default configuration provides optimal experience
- Tested with web installer
- Any relevant dependencies also bundled
(subtask of T333405)