For exporting video, you could try the Save As Movie plugin.The source code for this update site is embedded in the scifio-javacv history. Enable the beta-quality FFMPEG update site, which uses native bindings to the FFmpeg library to read many video formats.Bio-Formats is included with the Fiji distribution of ImageJ. See the Bio-Formats AVI and QuickTime pages for the list of supported codecs. Bio-Formats includes support for reading additional codecs for some video formats.
There are several ways to enable support for more video formats: Out of the box, ImageJ has limited support for some video formats such as AVI and QuickTime.