Thank you, Richard! Works well! On 20 February 2018 at 20:00, Richard Fuchs <rfu...@sipwise.com> wrote:
> On 2018-02-20 05:46 AM, Denys Pozniak wrote: > >> Hello! >> >> Please explain how to achive next: >> >> Side A supports: >> OPUS >> PCMA >> >> Side B supports: >> OPUS >> PCMA >> PCMU >> >> I need to transcode in direction A->B from PCMA to OPUS? >> So should be like this: >> A(PCMA) -> (PCMA)Rtpengine(OPUS)->B(OPUS) >> >> I configured like this: >> rtpengine_offer("codec-mask-PCMA codec-transcode-opus"); >> rtpengine_answer("codec-mask-opus codec-transcode-PCMA"); >> >> But leg from Rtpengine to A has wrong codec (OPUS): >> https://drive.google.com/file/d/14GAIt8lL7Igj9S95b_RS6CXtmGVhjLa1/view >> >> > You don't need to put any transcoding options into rtpengine_answer() - > they should all go into rtpengine_offer() > > Since A supports all codecs that B supports except PCMU, you can add PCMU > into the offer going to B with: > > rtpengine_offer("... transcode-PCMU") > > But most likely both sides will end up talking Opus (without transcoding) > since they both support it and it's listed first. If B ends up talking PCMU > to rtpengine, it will transcode it to Opus as A doesn't support PCMA and > Opus is first in its list. If either side ends up talking PCMA, it's also > passed through without transcoding since both sides support it. > > If you want to force PCMA on A's side and Opus on B's side, you need to: > > 1) accept PCMA from A, but don't offer it to B: codec-mask-PCMA > 2) ignore that Opus was offered from A: codec-strip-opus > 3) offer Opus to B: transcode-opus > > Make sure you update your rtpengine code base as this use case has only > just been implemented (previously the `transcode` option would simply > negate the `codec-strip` which is not what you want). Full example: > > rtpengine_offer("... ICE=remove codec-mask-PCMA codec-strip-opus > transcode-opus") > > > Cheers > > _______________________________________________ > Kamailio (SER) - Users Mailing List > sr-users@lists.kamailio.org > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users > -- BR Denys Pozniak
_______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users