avbin is used by default in pyglet
some discussion about the use of gstreamer in pyglet
http://code.google.com/p/pyglet/wiki/MediaOnLinux
http://www.mechanicalcat.net/richard/log/Python/Say_hello_to_pyglet

gstreamer interface reported to be complex.

installing gstreamer is not python specific
there are many applications that use gstreamer
gstreamer requires a native build for a given operating system

Projects utilizing GStreamer include:
--------------------------------------------------------
https://launchpad.net/elisa/+download
Elisa project files
http://groups.google.com/group/comp.lang.python.announce/browse_thread/thread/b355a76c7bb08184
Elisa Media Center 0.5.31 Release - comp.lang.python.announce | Google Groups
http://elisa.fluendo.com/participate/
Elisa, the free media player - Participate
http://www.fluendo.com/shop/product/complete-set-of-playback-plugins/
Fluendo Shop

http://blog.songbirdnest.com/2008/03/26/gstreamer-progress/
Songbird Blog » GStreamer Progress
http://blog.songbirdnest.com/2009/03/03/gstreamer-for-all/
Songbird Blog » GStreamer for all
http://blog.songbirdnest.com/2008/07/18/gstreamer-in-nightlies/
Songbird Blog » GStreamer now available in Mac and Windows nightlies!
http://getsongbird.com/
Songbird - Open Source Music Player

http://www.chameleo.org/faq/
Chameleo
http://wiki.laptop.org/go/Sugar_on_MacOS_X
Sugar on MacOS X - OLPC

http://liris.cnrs.fr/advene/
Advene project
http://www.pitivi.org/wiki/Downloads
Downloads - PiTiViWiKi
https://gna.org/projects/whaawmp/
Whaaw! Media Player - Summary [Gna!]

https://code.fluendo.com/pigment/trac
Pigment - Trac
http://www.jokosher.org/
Jokosher
http://www.jokosher.org/screenshots
Jokosher » Screenshots



Installing GStreamer on Mac OS X:
--------------------------------------------------------
(not sure if you can use the libraries bundled with songbird somehow?)

http://www.google.com/search?q=gstreamer+macosx&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
gstreamer macosx - Google Search
http://code.google.com/p/gstreamer-java/wiki/GstreamerOnMacOSX
GstreamerOnMacOSX - gstreamer-java - Build instructions for gstreamer on macosx. - Google Code
http://www.google.com/search?q=gstreamer+play+quicktime+movie&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
gstreamer play quicktime movie - Google Search
http://gstreamer.darwinports.com/
Gstreamer version 0.10.21 - How to Download and Install on Mac OS X
http://www.tribler.org/trac/wiki/GstreamerMac
GstreamerMac – Tribler
https://core.fluendo.com/gstreamer/trac/ticket/96
#96 (fluendo-megabundle can't play quicktime video) - Fluendo GStreamer - Trac
http://www.tribler.org/trac/wiki/GstreamerMacPython
GstreamerMacPython – Tribler


GStreamer references:
------------------------------
http://www.google.com/search?hl=en&client=firefox-a&channel=s&rls=org.mozilla%3Aen-US%3Aofficial&q=gst-python&btnG=Search
gst-python - Google Search
http://en.wikipedia.org/wiki/GStreamer
GStreamer - Wikipedia, the free encyclopedia
http://www.google.com/search?q=gstreamer&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
gstreamer - Google Search
http://gstreamer.freedesktop.org/features/
GStreamer: features


GST-Python:
-------------------------
http://gstreamer.freedesktop.org/modules/gst-python.html
http://gstreamer.freedesktop.org/modules/gst-python.html
http://www.ibm.com/developerworks/aix/library/au-gstreamer.html?ca=dgr-lnxw07GStreamer
Multipurpose multimedia processing with GStreamer
http://gstreamer.freedesktop.org/src/gst-python/
Index of /src/gst-python
http://gstreamer.freedesktop.org/src/gst-plugins-base/
Index of /src/gst-plugins-base

http://74.125.95.132/search?q=cache:k5oUDDmd9roJ:www.david-web.co.uk/blog/%3Fp%3D166+python+video+playback&cd=5&hl=en&ct=clnk&gl=us&client=firefox-a
David-Web :: Blog » Video goodness with Python and GStreamer

http://www.google.com/search?q=python+gstreamer&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
python gstreamer - Google Search
http://pygstdocs.berlios.de/
Python GStreamer Documents
http://pygstdocs.berlios.de/pygst-tutorial/introduction.html
1. Introduction
http://cgit.freedesktop.org/gstreamer/gst-python/tree/examples
gstreamer/gst-python - Python bindings for GStreamer
http://cgit.freedesktop.org/gstreamer/gst-python/tree/examples/video-controller.py
gstreamer/gst-python - Python bindings for GStreamer
http://www.jonobacon.org/2006/08/28/getting-started-with-gstreamer-with-python/
Getting started with GStreamer with Python | jonobacon@home

Pygame and GStreamer:
--------------------------------------
http://www.google.com/search?hl=en&client=firefox-a&channel=s&rls=org.mozilla:en-US:official&hs=OYC&q=pygame+gstreamer&start=10&sa=N
pygame gstreamer - Google Search
http://www.gossamer-threads.com/lists/maemo/developers/34734
PyGame with GStreamer: HELP? | Maemo | Developers
http://archives.seul.org/pygame/users/Mar-2008/msg00326.html
Re: [pygame] pystreamer in pygame? NEW USER: CORRECTION GSTREAMER
http://www.internettablettalk.com/forums/showthread.php?t=27451
Synesthesia: Audio Player - python+pygame+easy+Gstreamer - Internet Tablet Talk Forums
http://www.gamedev.net/community/forums/topic.asp?topic_id=470238
Playing video - GameDev.Net Discussion Forums
http://dev.laptop.org/attachment/ticket/1697/camera-add-snap_async.diff
Attachment – One Laptop Per Child – Trac
https://coherence.beebits.net/changeset/534?format=diff&new=534
https://coherence.beebits.net/changeset/534?format=diff&new=534
http://wiki.laptop.org/go/Pygame_wrapper
Pygame wrapper - OLPC
http://eclecti.cc/tag/pygame
Pygame | eclecticc
http://www.gamecreation.org/forum/index.php?sid=4d03416b9fef4754192241f3add68713
GCS Forums • Index page
http://eclecti.cc/about-this-site
About This Site | eclecticc


FFMPEG
---------------------
(looks like gstreamer has ffmpeg plugins, so that should allow utilization of both sets of plugins... seems better than locking in to one only)
http://code.google.com/p/pyffmpeg/
pyffmpeg - Google Code
http://code.google.com/p/wffmpeg/
wffmpeg - Google Code
http://www.google.com/search?q=gstreamer+ffmpeg&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
gstreamer ffmpeg - Google Search
http://gstreamer.freedesktop.org/modules/gst-ffmpeg.html
http://gstreamer.freedesktop.org/modules/gst-ffmpeg.html

Other Python Media Playback systems:
------------------------------------------
http://www.google.com/search?hl=en&client=firefox-a&channel=s&rls=org.mozilla%3Aen-US%3Aofficial&q=python+media+playback&btnG=Search
python media playback - Google Search
http://pymedia.org/tut/
PyMedia - Python module for avi, mp3, dvd, wma, ogg processing - pymedia_tut
http://pymedia.org/tut/install_src.html
PyMedia - Python module for avi, mp3, dvd, wma, ogg processing - pymedia_tut
http://pymedia.org//news.html
PyMedia - Python module for avi, mp3, dvd, wma, ogg processing - pymedia
http://sourceforge.net/mailarchive/forum.php?forum_name=pymedia-users&max_rows=25&style=nested&viewmonth=200807&viewday=8
SourceForge.net: PyMedia: pymedia-users

https://www.ogre3d.org/
OGRE - Open Source 3D Graphics Engine
http://mail.python.org/pipermail/python-list/2006-June/559736.html
Python Video processing.
http://www.pygame.org/wiki/gsoc2009ideas
pygame - python game development