Movie Thumbnailer (mtn) saves thumbnails (screenshots) of
movie or video files to jpeg files. It uses FFmpeg's libavcodec
as its engine, so it supports all popular codecs, e.g. divx h264
mpeg1 mpeg2 mp4 vc1 wmv xvid, and formats, e.g. .3gp .avi .dat
.mkv .wmv. mtn is open source software.