enfle

This software aims to view many pictures just clicking. You can view
various formatted pictures and movies with several effects.

Formats you can view:
BMP, GIF, JPEG, PCX, PNG, PNM, XBM, XPM, TGA, JPEG2000
spi(highly unstable, any formats which (some of) susie plugins support)
animated GIF
mng
mpeg (mpeg1, mpeg2)
avi,ogg,ogm(,asf,wmv) (codec supported by avcodec, vorbis, Windows DMO)

This software has plugin architecture. You can write plugins to loader
new formatted pictures and movies. Also, you can read regular archive
files, such as tar, gz, bz2, and so on.