On Tue, Jun 12, 2012 at 09:59:39AM -0400, Marc-André Lureau wrote: > > > ----- Mensaje original ----- > > On Tue, Jun 12, 2012 at 09:11:24AM -0400, Marc-André Lureau wrote: > > > As long as the bitstream is not frozen, we can't use opus, or we > > > will > > > have the same problems as with celt today. > > > > As I understand it, while the bitstream is not officially frozen yet, > > it's > > very unlikely to change before the real freeze (unless big last > > minute > > issues are fine), so an Opus mode (marked as "no compat guarantees, > > use at > > your own risk, ...") will probably not cause significant > > compatibilities issues. > > That's just guesses. It's not about library API, but about bitstream. > There is no guarantee. A guess supported by the slides at http://www.opus-codec.org/presentations/ , by various mailing posts from opus developers, ... > Sticking to celt051 is still a safer alternative. Not suggesting dropping celt051 support upstream... > Otherwise, how would you identify almost-frozen bitstream to frozen bitstream? > You would have to identify by library version (erk!) > and be compatible with the old and new bitstram (which might be complicated > depending on library design), or be incompatible with the intermediate version, > situation which we better avoid! We would make no guarantee with interoperability between binaries using different opus versions until the format is officially frozen. I agree there's a bit of uncertainty in this move, but I think that at this point it's a reasonable assumption that things will work, even with different opus versions. > > > > Sadly, I think debian folks aren't looking at what is really > > > celt051. > > > > It's not really an old and unmaintained release of celt ? > > If something would show up, the spice team would > certainly update it. So I wouldn't say unmaintained. Is anyone from the team monitoring celt security issues and whether they apply to celt 0.5.1? Christophe
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