Re: [Iaxclient-devel] support of iLBC

[Steve K. <st...@st...>]

I think cypromis'  folks might work on this at some point.  It's not=20
the highest thing on my list, but it probably comes after IAX2=20
reliability, better silence suppression, and possibly echo cancellation=20=

or at least echo suppression.

As to what needs to be done:

1) develop a modular interface for codecs, similar to (a) the interface=20=

I added recently for audio drivers and/or (b) the modular interface=20
that phonecore uses for codecs.

2) develop some additional support for variable frame sizes (I think=20
that * uses 30ms frames for iLBC, as opposed to 20ms for GSM),=20
negotiating codecs etc (everything is currently hardcoded for GSM).

3) As a test of (1), (2), it might be nice to make a uLaw/aLaw "codec"=20=

for testing, and because Darren will probably come to your house and=20
"moo" for you, if you like that kind of thing.

4) Then, add a subdir for the iLBC library (the same stuff included in=20=

*), add the proper Makefile-foo to compile it to lib/Makefile, etc.

5) write the actual codec_ilbc.c file which uses the interface in (1),=20=

and the iLBC library API, and glues them together.

It doesn't seem really difficult to do.

List:  Yeah, I've kinda disappeared for a while; There's been a lot of=20=

things going on for me personally, and work has been kinda busy too. =20
But, more work on iaxclient should be happening within the next few=20
months.

-SteveK


On Aug 27, 2003, at 6:07 PM, Dan Fernandez wrote:

> Folks,
> =A0
> =D5t=A5s been my experience that the quality of IAX calls is a lot =
better=20
> with iLBC than GSM. What=A5s need to be done for the softphone to be=20=

> able to use iLBC?=A0 Is this on anyones priority list?
> =A0
> Rgds
> Dan