Movie tools allows you to add support for additional movie formats and customize when movie thumbnails are extracted.
Movie tools requires Gallery v3.0.5 or newer. The API of older versions is not as flexible with adding support for additional movie types.
Once enabled, additional movie types can be uploaded just like standard movies.
The preset lists include the following movie formats: mov (video/quicktime), f4v (video/x-m4v), webm (video/webm), ogv (video/ogg), ts (video/mp2t), mts (video/mp2t), m2ts (video/mp2t), mpe (video/mpeg), mpeg (video/mpeg), mpg (video/mpeg), m1v (video/mpeg), m2v (video/mpeg), mp4v (video/mp4), mpg4 (video/mp4), qt (video/quicktime), wmv (video/x-ms-wmv), avi (video/x-msvideo), asf (video/x-ms-asf), 3gp (video/3gpp), 3g2 (video/3gpp2).
While this module will allow the movies to be uploaded and supported by Gallery, not all formats will necessarily be viewable or readable by Gallery. Also, the movie may not be long enough to extract the thumbnail at the desired time.
Also, if you want to disable a previously-supported movie type, it's recommended to first delete any movies if that type. Otherwise, Gallery could act strangely with the now-unsupported movies.
Installing movie tools is just like any other module:
If your Gallery is not configured to allow movie uploads, you'll first need to enable them. See the Admin | Settings | Movies menu.