Re: [SR-Users] sdp manipulation in connection with rtpengine_offer/answer calls

Le Mon, 10 Aug 2015 10:49:10 +0300, Juha Heinanen jh@tutpro.com a écrit :

Daniel-Constantin Mierla writes:

...

You should use msg_apply_changes() in between them in order to have previous changes visible for further processing.

Do you mean that msg_apply_changes() needs to be called between each sdpops call? I thought that the changes made by sdpops calls are cumulative.

Hi,

There is a `write_sdp_pv` parameter in the rtpengine module that makes rtpengine return the new SDP in a variable rather than in the message body. Personally I find it's more convenient to transform a variable several times than working directly on the message buffer and applying msg_apply_changes() several times.