sudo emerge --search media-libs/opus
Пароль:

Local copy of remote index is up-to-date and will be used.
[ Results for search key : media-libs/opus ]
Searching...

*  media-libs/opus
      Latest version available: 1.3
      Latest version installed: 1.3
      Size of files: 1009 KiB
      Homepage:      https://opus-codec.org/
      Description:   Open codec designed for internet transmission of interactive speech and audio
      License:       BSD

*  media-libs/opusfile
      Latest version available: 0.11
      Latest version installed: 0.11
      Size of files: 457 KiB
      Homepage:      https://www.opus-codec.org/
      Description:   A high-level decoding and seeking API for .opus files
      License:       BSD

[ Applications found : 2 ]