[Freeswitch-users] Codecs and things

Ahmed Naji a.alalousi at gmail.com
Tue Dec 22 12:55:41 PST 2009

Hello people,

Can someone please clear the following ambiguities with codecs:

   1. 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
   2. 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
   3. 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 ?
   4. 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 A. Ibrahim-Naji Al-Alousi
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