[Asterisk-Dev] codec coding docs needed

[Steve Underwood]

Andrew Lindh wrote:

>Are there any docs on the codecs procedures/functions to inteface with
>asterisk? I'm looking for some information on what's called by asterisk,
>what it needs (parameters) and what it should do.
>
>I thougt would be easier to ask for docs than just read codec_g726.c.....
>
>Is there a good asterisk internals document?
>
>  Andrew
>  
>
Just read codec_726.c Its quite a thin layer that sits between the codec 
and asterisk, so it should be fairly easy to work it out. Its rather 
inflexible, which means the various rates of G.726, for example, cannot 
all be handled as a single codec with a parameter. It also treats a 
codec as a one way path independent of anything else. This makes 
adaptive codecs, and things T.38 a pain to handle. It also makes 
figuring out the current interfaces quite easy, though :-)

Regards,
Steve