Packages with the mpeg use flag

dev-ruby / ruby-sdl : Ruby/SDL: Ruby bindings for SDL

media-libs / libextractor : Library to extract metadata from files of arbitrary type

media-libs / sdl-sound : A library for handling the decoding of various sound file formats

media-plugins / gst-plugins-meta : Meta ebuild to pull in gst plugins for apps

media-video / sonic-snap : Webcam app for sn9c10x based camera controllers (with optional MPEG4 support)

media-video / transcode : Utilities for transcoding video and audio codecs in different containers

media-video / vlc : Media player and framework with support for most multimedia files and streaming

dev-ruby