libvorbisfile-ruby1.8 0.2-8.1 (powerpc binary) in ubuntu trusty

 libvorbisfile-ruby is a decoder library provided with the Ogg Vorbis
 distribution. See http://xiph.org/ogg/vorbis/ for details.
 .
 The API of this extension is virtually identical to that of
 vorbisfile.h, with a couple of exceptions:
 .
  * Prefixes have been removed (ov_open -> open).
  * The OggVorbis_File parameter is removed, as the VorbisFile object
    encapsulates this.