Trailer

Here is a video showcasing some of the artwork, gameplay, and music of "The Battle for Wesnoth." Its purpose is to publicize the game and show people what they're missing! You are free to distribute the video to online video sites. Since the art used was licensed under the Gnu General Public License (GPL), the video itself is a GPL'd work, and you are obligated to indicate this when distributing the video.

Trailer based on Wesnoth 1.1.2, by Radoz

It is really based on 1.1.2, not 1.2 sadly. So while very good and still fitting, it doesn't show the latest features until someone creates a new trailer. Are you the one who can do it?

320x240 video in OGG Theora format (4.8 MB)
640x480 video in OGG Theora format (14.6 MB)

Online presence

If you distribute the video somewhere, post the link here.

Google Video

The video has been uploaded to YouTube, but was removed, and replaced with the message "This video is no longer available due to a copyright claim by Viacom International Inc." Note that this claim is false. Subsequent attempts to upload the video have been met with the error message "Failed (invalid file format)", even though OGG Theora is the leading Free Software video codec.

File format

The video files' extension is .ogg. Thought ogg was a music format? Well, sort of. Ogg is the name of Xiph.org's "container format" for audio, video, and metadata. When it holds vorbis-encoded audio, the file is called "ogg vorbis" - Vorbis is the name of an audio compression code. The actual video codec used is called theora. This ogg file has Theora-encoded video and vorbis-encoded audio.

This means VLC, for one, can play this file, but its performance lags a little. Other apps to try:

mplayerplug-in works too, needs Mplayer, also .
Realplayer and its fully open-source cousin Helixplayer (Real and Helix now have the same sort of relationship that Netscape and Mozilla once had - Realplayer is about 90% open source these days). Xine (this is what I use).
Anything based on the libxine or gstreamer libraries (e.g. Gnome's Totem, KDE's Kaboodle or Xfce's Xfmedia).
You can also get Directshow plugins for Windows Media Player and other Directshow-based apps.
Basically, any reasonably up-to-date GNU/Linux system should play this out of the box, and Windows and Mac should play it with only a little effort. In Gentoo you have to set the useflag USE="theora" to be able to watch the video.

The file formats and codecs described here are open source/open standards, thus they are given preferential treatment by this project on philosophical grounds.