media-sound/easytag
GTK+ utility for editing MP2, MP3, MP4, FLAC, Ogg and other media tags
USE Flags
flac
Global: Adds support for FLAC: Free Lossless Audio Codec
mp3
Global: Add support for reading mp3 files
mp4
Global: Support for MP4 container format
opus
* This flag is undocumented *
speex
Global: Adds support for the speex audio codec (used for speech)
test
Global: Workaround to pull in packages needed to run with FEATURES=test. Portage-2.1.2 handles this internally, so don't set it in make.conf/package.use anymore
vorbis
Global: Adds support for the OggVorbis audio codec
wavpack
Global: Add support for wavpack audio compression tools