Since they are aliases for ogg enabling any of them enables ogg as well.
051aade ogg: Provide aliases for Speex, Opus and audio-only ogg
Changelog | 1 +
configure | 3 +++
libavformat/allformats.c | 3 +++
libavformat/oggenc.c | 53 +++++++++++++++++++++++++++++++++++++++++++++-
libavformat/version.h | 2 +-
5 files changed, 60 insertions(+), 2 deletions(-)
Upstream: git.libav.org