[Standards] XEP-0167: How to?

Philipp Hancke fippo at goodadvice.pages.de
Sun Jun 19 19:02:36 UTC 2016


Am 19.06.2016 um 09:12 schrieb Kozlov Konstantin:
> Hello!
>
> Just trying to implement XEP-0167: Jingle RTP Sessions in my client software. There's something, I can't understand.
> According to 5. Negotiating a Jingle RTP Session, instances should start exchange media just after session-accept sent and acknowledged and connectivity established. To play RTP media stream, receiving party needs SDP, which could be build, using <payload-type/> element attributes. But session-accept stanza may have <description/> element, which contains more than one <payload-type/> element. And it says, that any of them could be used. How receiving party can determine, which payload type uses sending party, to generate SDP to play media stream?

typically that is done by looking at the payload type of the rtp 
packets. You could have multiple 'codecs' like rtx after all



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