As you may know I have been working on firefogg integration with mediaWiki. As you may also know the mwEmbed library is being designed to support embedding of these interfaces in arbitrary external contexts. I wanted to quickly highlight a useful stand alone usage example of the library:
http://www.firefogg.org/make/advanced.html
This "Make Ogg" link will be something you can send to a person so they can encode source footage to a local ogg video file with the latest and greatest ogg encoders (presently the thusnelda theora encoder & vorbis audio). Updates to thusnelda and other free codecs will be pushed out via firefogg updates.
For commons / wikimedia usage we will directly integrate firefogg (using that same codebase) You can see an example of how that works on the 'new-upload' branch here: http://sandbox.kaltura.com/testwiki/index.php/Special:Upload ... hopefully we will start putting some of this on testing.wikipedia.org ~soonish ?~
The new-upload branch feature set is quite extensive including the script-loader, jquery javascript refactoring, the new upload-api, new mv_embed video player, add media wizard etc. Any feedback and specific bug reports people can do will be super helpful in gearing up for merging this 'new-upload' branch.
For an overview see: http://www.mediawiki.org/wiki/Media_Projects_Overview
peace, --michael