Quick Look support for non-native video files (.avi, .mkv) on Mavericks

In the past, we've been able to get codecs for DivX/XviD/MPEG4 and support for containers like AVI, MKV in Mac OS X's Quick Look feature using Perian (as per this question ). As noted on the Perian site, development has ceased, and future versions may or may not continue to work. It seems with the upgrade to OS X 10.9 "Mavericks", the OS or Quick Look API has changed sufficiently that Perian no longer works. Are there any alternatives? Ideally a one-app-does-all like Perian, but even a list of individual codecs and/or plug-ins for video container files would be useful. **NB**: This question isn't about video *players*—there are many that support more than those playable via the built-in QuickTime player. This question is about **codecs/plug-ins *for* QuickTime** on OS X to allow it and Quick Look (and apps which rely on the OS to play videos) to open/play video files/formats lacking native support.