[asterisk-dev] Adding AMR codec

Steve Kennedy steve-asterisk at gbnet.net
Mon Nov 20 09:32:53 MST 2006


On Mon, Nov 20, 2006 at 04:18:55PM +0000, Ian Hailey wrote:

> I need to and some rudimentory AMR codec support to Asterisk, does 
> anyone know if there material or documentation available that might ease 
> the process?
> This codec produces variable length packets making it a bit more 
> difficult to add. I am assuming that ast_codec_get_samples and 
> ast_codec_get_len need updating to provide support for AMR. 
> Interestingly ast_codec_get_len does not seem to have support for speex 
> so perhaps this is not used?

AMR is patent encumbered and requires licensing. Voiceage handle
licensing. It's something like 50c a decoder and $1 an encode, minimum
$20K (or could be more, a while since I dealt with it).


Steve

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