Hi All, I'm implementing partial support for RFC 4103 (RTP Payload for Text Conversation). There are two 'flavors' of text; T140, which is the basic message format, and RED, which is the same format but with several previous communications resent in the same packet (this is for redundancy). The RTP stream can dynamically switch between the two and so my issue is that my server needs to provide an SDP answer that supports both payload types in one media line, something like m=text 20054 RTP/AVP 99 98 a=label:6 a=recvonly a=rtpmap:99 red/1000 a=rtpmap:98 t140/1000 I've gone over the sdp negotiator code and as far as I can tell it's all oriented towards picking only the first codec that matches the offer. It looks to me like I'll have to write an alternate match_offer routine to generate this kind of answer but I wanted to run it by the mailing list first in case I'm missing something obvious. BTW I don't have control over the kind of offers I'm getting. Regards Matthew Daughtrey Eventide Inc 201.641.1200 x 241 mdaughtrey at eventide.com<mailto:mdaughtrey at eventide.com> Skype: matthew.daughtrey -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20131002/b3959582/attachment-0001.html>
