Hello kamailio community,
i know its an unusual query but i would like to know if there is a cleaner/proper.right way to disable some (or all) media streams in SDP.
i have come with a solution by sdpops module with subst_body function like this.
route[SDP_DISABLE_UNAUTHORIZED_MEDIA]{ # disable text,media and video media streams subst_body('#^m=(video|text|audio)[ ]+[0-9/]+(.*)$#m=\1 0 \2#ig');
# update originator ip address subst_body('#^o=([^ ]+)[ ]+([^ ]+)[ ]+([^ ]+)[ ]+([^ ]+)[ ]+([^ ]+)[ ]+([^ ]+)$#o=\1 \2 \3 \4 \5 7.7.7.7#ig'); # 1 2 2 4 5 6 # name sid snumber network net-type addr
# update connection ip address subst_body('#^c=([^ ]+)[ ]+([^ ]+)[ ]+([^ ]+)$#c=\1 \2 7.7.7.7#ig'); # 1 2 3 # network net-type addr
#remove all media attributes sdp_remove_line_by_prefix("a=fmtp"); sdp_remove_line_by_prefix("a=X-"); sdp_remove_line_by_prefix("a=rtcp"); sdp_remove_line_by_prefix("a=ssrc"); sdp_remove_line_by_prefix("a=sendrecv"); sdp_remove_line_by_prefix("a=sendonly"); sdp_remove_line_by_prefix("a=recvonly"); sdp_remove_line_by_prefix("a=inactive"); sdp_remove_line_by_prefix("b=");
}
is it the right way to do it. if not can someone provide me an alternative solution.
Thanks :)
Can't you achieve the desired manipulations using the SDPOPS module?
https://www.kamailio.org/docs/modules/devel/modules/sdpops.html
On Mon, May 29, 2023, 5:39 a.m. Patrick Karton patrickarton@hotmail.com wrote:
Hello kamailio community,
i know its an unusual query but i would like to know if there is a cleaner/proper.right way to disable some (or all) media streams in SDP.
i have come with a solution by sdpops module with subst_body function like this.
route[SDP_DISABLE_UNAUTHORIZED_MEDIA]{ # disable text,media and video media streams subst_body('#^m=(video|text|audio)[ ]+[0-9/]+(.*)$#m=\1 0 \2#ig');
# update originator ip address subst_body('#^o=([^ ]+)[ ]+([^ ]+)[ ]+([^ ]+)[ ]+([^ ]+)[ ]+([^ ]+)[ ]+([^ ]+)$#o=\1 \2 \3 \4 \5 7.7.7.7#ig'); # 1 2 2 4 5 6 # name sid snumber network net-type addr
# update connection ip address subst_body('#^c=([^ ]+)[ ]+([^ ]+)[ ]+([^ ]+)$#c=\1 \2 7.7.7.7#ig'); # 1 2 3 # network net-type addr
#remove all media attributes sdp_remove_line_by_prefix("a=fmtp"); sdp_remove_line_by_prefix("a=X-"); sdp_remove_line_by_prefix("a=rtcp"); sdp_remove_line_by_prefix("a=ssrc"); sdp_remove_line_by_prefix("a=sendrecv"); sdp_remove_line_by_prefix("a=sendonly"); sdp_remove_line_by_prefix("a=recvonly"); sdp_remove_line_by_prefix("a=inactive"); sdp_remove_line_by_prefix("b=");
}
is it the right way to do it. if not can someone provide me an alternative solution.
Thanks :)
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I use RTPengine to proxy media. In my config used
modparam("rtpengine", "write_sdp_pv", "$avp(sdp)")
route[PROXY_MEDIA] { ... rtpengine_manage("SDES=off");
set_body("$(avp(sdp){re.subst,/^a=ssrc.*\n//g}{re.subst,/^a=msid-semantic.*\n//g}{re.subst,/^a=end-of-candidates\r\n//g})", "application/sdp"); }
On Mon, May 29, 2023 at 2:46 PM Sergiu Pojoga pojogas@gmail.com wrote:
Can't you achieve the desired manipulations using the SDPOPS module?
https://www.kamailio.org/docs/modules/devel/modules/sdpops.html
On Mon, May 29, 2023, 5:39 a.m. Patrick Karton patrickarton@hotmail.com wrote:
Hello kamailio community,
i know its an unusual query but i would like to know if there is a cleaner/proper.right way to disable some (or all) media streams in SDP.
i have come with a solution by sdpops module with subst_body function like this.
route[SDP_DISABLE_UNAUTHORIZED_MEDIA]{ # disable text,media and video media streams subst_body('#^m=(video|text|audio)[ ]+[0-9/]+(.*)$#m=\1 0 \2#ig');
# update originator ip address subst_body('#^o=([^ ]+)[ ]+([^ ]+)[ ]+([^ ]+)[ ]+([^ ]+)[ ]+([^ ]+)[ ]+([^ ]+)$#o=\1 \2 \3 \4 \5 7.7.7.7#ig'); # 1 2 2 4 5 6 # name sid snumber network net-type addr
# update connection ip address subst_body('#^c=([^ ]+)[ ]+([^ ]+)[ ]+([^ ]+)$#c=\1 \2 7.7.7.7#ig'); # 1 2 3 # network net-type addr
#remove all media attributes sdp_remove_line_by_prefix("a=fmtp"); sdp_remove_line_by_prefix("a=X-"); sdp_remove_line_by_prefix("a=rtcp"); sdp_remove_line_by_prefix("a=ssrc"); sdp_remove_line_by_prefix("a=sendrecv"); sdp_remove_line_by_prefix("a=sendonly"); sdp_remove_line_by_prefix("a=recvonly"); sdp_remove_line_by_prefix("a=inactive"); sdp_remove_line_by_prefix("b=");
}
is it the right way to do it. if not can someone provide me an alternative solution.
Thanks :)
Kamailio - Users Mailing List - Non Commercial Discussions To unsubscribe send an email to sr-users-leave@lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe:
Kamailio - Users Mailing List - Non Commercial Discussions To unsubscribe send an email to sr-users-leave@lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe:
-
Patrick Karton -
Sergey Safarov -
Sergiu Pojoga