[asterisk-dev] AMR support in Asterisk-SVN (codec_amr.so)

[Paul Bagyenda]

On Mar 05, 2007, at 14:10, Sergio Garcia Murillo wrote:
> I find you work very usefull.
> I'm currently using amr format for h324m content playback, but
> mpeg4ip only support rfc 3267 in octet-aligned mode.
> I have to rebuild the amr stream to pass it to the h324m library so
> it would be great if this mode is supported also. I could modify my
> code in order to be able to handle also the bandwith efficient mode,
> but we should then signal somehow in which mode is the frame coded.
> Perhaps as a quick hack we could get to payload formats for it (and
> also two codecs)

octet-aligned mode is easier to parse than the bandwidth efficient  
mode, so adding it is not a problem. The key issue is to be able to  
tell which mode the packets are coded in. Which requires access to  
the SDP info.

> The parameter option would be perfect, but i know it's going to hard
> to get it done. It would be also very usefull for video, to be able to
> specify codec parameters as bandwith (to be able in the future to
> know when we should transcode or not).
>
> Greetings
> Sergio Garcia
> http://sip.fontventa.com/
>
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