Include headers required for implementation only in the
implementation file.
This remove dependency and avoid the user component having to
check for header flags (in this case HAVE_CELT051 and HAVE_OPUS).
This make easier integration in other components.
This also make compilation faster.
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
This allows users of the library to redirect where these messages go
through use of g_log_set_default_handler() rather than unconditionally
printing on stderr.
Signed-off-by: Christophe Fergeau <cfergeau@redhat.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>