That's what I'm using. Thanks. On Fri, Aug 26, 2022 at 3:54 PM Yuriy Gorlichenko <ovoshl...@gmail.com> wrote:
> The easiest way I see is: > Set up mod parameters for rtpengine > Read_avp and write_avp > During the request processing get $rb and put it into read_avp > > Change/remove needed lines from the sdp in avp using regexp or > lua/js/python (do not use sdpos as it works with initial sdp, so it won't > affect the data in avp ) > > Call rtpengine_manage > Use write_avp after in the call of set_body to apply updated value > > > https://www.kamailio.org/docs/modules/devel/modules/textops.html#textops.f.set_body > > Then you get your changes. > > On Fri, 26 Aug 2022, 01:23 mayamatakeshi, <mayamatake...@gmail.com> wrote: > >> Hi, >> Yes, I tried. >> I had this code in my cfg file: >> >> sdp_remove_media("video"); >> append_hf("P-hint: video removed\r\n"); >> rtpengine_offer("symetric direction=pub direction=priv >> codec-transcode=PCMU codec-transcode=PCMA codec-transcode=GSM >> codec-transcode=G729"); >> >> But when I check the INVITE going out from kamailio, >> I see the P-hint header but the m=video line is still there in the SDP: >> >> INVITE sip:user2@10.255.255.1997072 SIP/2.0 >> Max-Forwards: 70 >> Record-Route: >> <sip:192.168.2.198;lr=on;ftag=837235;vsf=AAAAAEVGVUMAcUVUQkUAbhcKHnQxLmNvbQ--;did=662.4f01> >> To: <sip:05022222222@192.168.2.198> >> From: 05011111111 <sip:05011111...@test1.com>;tag=837235 >> Call-ID: 368391 >> CSeq: 14806 INVITE >> Content-Type: application/sdp >> Contact: <sip:user1@192.168.2.50:7070> >> User-Agent: Zoiper >> Allow-Events: presence, kpml, talk >> Via: SIP/2.0/UDP >> 192.168.2.198;branch=z9hG4bK82de.2d1517380038597f70a08f7217851c70.0 >> Via: SIP/2.0/UDP 10.255.255.199:7070 >> ;received=192.168.2.50;branch=z9hG4bK794289;rport=7070 >> Content-Length: 518 >> P-hint: video removed >> >> v=0 >> v=0 >> o=71924084 8000 8001 IN IP4 192.168.2.110 >> s=SIP Call >> c=IN IP4 192.168.2.198 >> t=0 0 >> m=audio 48882 RTP/AVP 0 8 3 18 101 >> a=rtpmap:0 PCMU/8000 >> a=rtpmap:8 PCMA/8000 >> a=rtpmap:3 GSM/8000 >> a=rtpmap:18 G729/8000 >> a=fmtp:18 annexb=no >> a=rtpmap:101 telephone-event/8000 >> a=fmtp:101 0-15 >> a=sendrecv >> a=rtcp:48883 >> a=ptime:20 >> m=video 48912 RTP/AVP 105 >> b=AS:704 >> a=rtcp-fb:* nack pli >> a=rtcp-fb:* ccm fira=rtpmap:105 H264/90000 >> a=fmtp:105 profile-level-id=428016; packetization-mode=1 >> a=sendrecv >> a=rtcp:48913 >> >> I also tried doing the removal after rtpengine_offer()/rtpengine_manage() >> but the same thing happens. >> I also tried to use >> msg_apply_changes(); >> with the same results. >> >> So it seems rtpengine_offer() is executed later in the processing and >> over the original SDP. >> >> Checking the docs what eventually worked was this: >> >> # set rtpengine to read the body from an AVP: >> modparam("rtpengine", "read_sdp_pv", "$avp(sdp)") >> >> # set $avp(sdp) to a copy of $rb and replace the m=video line: >> $avp(sdp) = $rb; >> subst_attr("$sdp","/m=video [0-9]*/m=video 0/"); >> >> So rtpengine would operate on a >> m=video 0 RTP/AVP XXX >> line and so it would not set up rtp proxying for it. >> >> Then the original SDP line: >> m=video 10004 RTP/AVP 105 >> became this in the forwarded SDP: >> m=video 0 RTP/AVP 0 >> >> Thanks. >> >> On Thu, Aug 25, 2022 at 3:39 PM Henning Westerholt <h...@gilawa.com> wrote: >> >>> Hello, >>> >>> >>> >>> already tried the sdpops module? >>> >>> >>> https://kamailio.org/docs/modules/5.5.x/modules/sdpops.html#sdpops.f.sdp_remove_media >>> >>> >>> >>> Cheers, >>> >>> >>> >>> Henning >>> >>> >>> >>> -- >>> >>> Henning Westerholt – https://skalatan.de/blog/ >>> >>> Kamailio services – https://gilawa.com >>> >>> >>> >>> *From:* sr-users <sr-users-boun...@lists.kamailio.org> *On Behalf Of * >>> mayamatakeshi >>> *Sent:* Thursday, August 25, 2022 1:49 AM >>> *To:* Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org> >>> *Subject:* [SR-Users] Disabling video rtp proxing >>> >>> >>> >>> Hi, >>> >>> I'm using rtpengine for RTP proxying with kamailio. >>> >>> I use it just for audio. >>> >>> But eventually some terminal reinvites offering video. >>> >>> I don't want to refuse the request but just disable RTP proxying for >>> video as my employer has limited bandwidth and want to reserve it only for >>> audio. >>> >>> So I checked the rtpengine module documentation but it seems there is no >>> way to restrict RTP proxying to be performed only for m=audio. >>> >>> I tried some things like >>> >>> replace_body("^m=video [0-9]+", "m=video 0"); >>> >>> and >>> subst_body('/^m=video [0-9]+ /m=video 0 /'); >>> >>> and >>> >>> msg_apply_changes(); >>> >>> but still the RTP proxying for video is set up. >>> >>> >>> >>> Any hints on how to solve this? >>> >>> >>> >>> >>> >> __________________________________________________________ >> Kamailio - Users Mailing List - Non Commercial Discussions >> * sr-users@lists.kamailio.org >> Important: keep the mailing list in the recipients, do not reply only to >> the sender! >> Edit mailing list options or unsubscribe: >> * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >> > __________________________________________________________ > Kamailio - Users Mailing List - Non Commercial Discussions > * sr-users@lists.kamailio.org > Important: keep the mailing list in the recipients, do not reply only to > the sender! > Edit mailing list options or unsubscribe: > * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >
__________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions * sr-users@lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users