Playing around…
… with Totem, based on the new PlayBin object for playback using GStreamer. Patch for Totem available here, but mind you, this is pre-alpha stuff! Some quickly-noticed bugs:

* xvimagesink/aasink default sizing seems broken. All works fine after a manual resize.
* some AVI-with-mp3 files hang after 1-2 seconds. For those two seconds, audio plays far too fast.

However, most stuff appears to work quite nicely. I hope to get into some media testing next (#138435).