[Freeswitch-users] Codecs and things

[Ahmed Naji]

Hi Mike,

Thanks for this.

Is the alpha/dev version in the development repositories somewhere ? I would
be very interested to participate. I have some code for the ti dsps which
may or may not be useful.

Also, I'd very much like to put in the effort to the ti DSPs within FS.

Is this something that yourself and other devs would be interested in ?

Regards,

Ahmed.

2009/12/23 Michael Jerris <mike at jerris.com>

> We expect the g729 sometime very soon, weeks not months away.
>
> Mike
>
> On Dec 22, 2009, at 7:45 PM, Rupa Schomaker <rupa at rupa.com> wrote:
>
> > On Tue, Dec 22, 2009 at 2:55 PM, Ahmed Naji <a.alalousi at gmail.com>
> > wrote:
> >> Hello people,
> >>
> >> Can someone please clear the following ambiguities with codecs:
> >>
> >> Are we definitively able to run pass-through codecs (e.g. G.729) in
> >> Proxy
> >> Media mode, or does FS need to be running in bypass-media ? the
> >> Wiki is not
> >> clear in this regard
> >
> > Yes, you can use proxy media, bypass media, or even regular mode if
> > you don't transcode (special for g729).  Proxy media is really a
> > special hack that should only be used for T38 passthrough.  If you are
> > using it for other purposes, think about it some more....
> >
> >> When an A-leg has negotiated a pass-through media codec, can the B-
> >> leg be
> >> transcoded into a non-pass-through codec, and vice-versa ? think A-
> >> leg
> >> incoming with a G.729 codec, and target for B-leg needs to be setup
> >> with a
> >> GSM-codec, say
> >
> > That would require transcoding - which can't be done if the codec is
> > pass-through.
> >
> >> Where in the developer's set of documentation are codecs
> >> discussed ? I would
> >> like to start porting some code of mine for G.729a/b/ab form a ti DSP
> >> platform to FS. FS lacking full G.729 support is proving quite a
> >> hindrance,
> >> and there is no clear direction from the dev community as to when
> >> the same
> >> will be available. Incidentally, any news on this effort ? where
> >> are we with
> >> code, and what's an ETA for a Beta ?
> >
> > I'd say look at the broadvoice or other simple self-contained codecs
> > are done.  Currently the only supported g729 solution is to use a
> > digium board with mod_dahdi_codec.
> >
> > I don't have any info on a software based g729 solution.
> >
> >> On the same lines as (3) above, there is a codec dev template in
> >> the source
> >> tree. Again, where can I find documentation relating to this ? the
> >> template
> >> has hardly any docs at all.
> >>
> >> Best regards and warm wishes for a Merry Christmas and a great New
> >> Year to
> >> one and all.
> >>
> >> Ahmed.
> >>
> >>
> >> --
> >> Ahmed A. Ibrahim-Naji Al-Alousi
> >> Ph.D., MIEE, MBCS
> >>
> >> _______________________________________________
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> >>
> >>
> >
> >
> >
> > --
> > -Rupa
> >
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-- 
Ahmed A. Ibrahim-Naji Al-Alousi
Ph.D., MIEE, MBCS
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