[Spice-devel] celt 0.5.1 dependency of spice

[Alon Levy]

On Mon, May 09, 2011 at 11:04:47AM +0200, Christophe Fergeau wrote:
> Hi,
> 
> On Sun, May 08, 2011 at 03:38:17PM +0300, Alon Levy wrote:
> > This problem has been raised multiple times on the list, you should read the
> > archives. To recap: historically when spice had to choose a codec it chose the
> > current celt then, 0.5.1. That celt is not compatible with newer celts. The
> > decision was to wait for celt's on wire format to stabilize. This hasn't happened
> > yet (perhaps it will happen soon). It is however possible to introduce support
> > for multiple codecs and have the client and server negotiate. This will still not
> > allow a celt 0.10.0 linked spice server to connect to celt 0.5.1 client, or vice
> > versa.
> 
> Celt 0.11.1 release announcement says
> "CELT 0.11.0 (originally not announced) and 0.11.1 has been released with a
> focus on freezing the bit-stream and updating the API. The bit-stream is
> now in "soft-freeze" state meaning there is an attempt to keep it fixed,
> but some bugs may force changes" so if some codec negociation was
> introduced, I'd target celt 0.11.1+ (explicitly noting that celt 0.11.1+
> support may be broken at any time if celt bitstream format has to change
> before it's officially frozen).

If we add the negotiation logic we can later add a third celt version, or
an entirely different codec, so seems right to me.

> 
> Christophe



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