-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello Stefan,
on my way to an b2bua with rtp proxy support I found that sems's SDP parser can't parse this SDP: v=0 o=bell 949879 949879 IN IP4 80.228.245.97 s=- c=IN IP4 80.228.245.133 t=0 0 m=audio 42952 RTP/AVP 8 101 a=ptime:20 a=sqn:0 a=cdsc:1 image udptl t38 a=cpar: a=T38FaxVersion:0 a=cpar: a=T38MaxBitRate:14400 a=cpar: a=T38FaxRateManagement:transferredTCF a=cpar: a=T38FaxMaxBuffer:336 a=cpar: a=T38FaxMaxDatagram:176 a=cpar: a=T38FaxUdpEC:t38UDPRedundancy a=rtpmap:101 telephone-event/8000 a=rtpmap:8 pcma/8000 It says this: (4458) DEBUG: parse_sdp_line_ex (AmSdp.cpp:379): parse_sdp_line_ex: parsing sdp message .. (4458) DEBUG: parse_sdp_line_ex (AmSdp.cpp:391): parse_sdp_line_ex: found version (4458) DEBUG: parse_sdp_line_ex (AmSdp.cpp:398): parse_sdp_line_ex: found origin (4458) DEBUG: parse_sdp_origin (AmSdp.cpp:923): parse_sdp_line_ex: parse_sdp_origin: parsing sdp origin (4458) DEBUG: parse_sdp_origin (AmSdp.cpp:1014): parse_sdp_line_ex: parse_sdp_origin: done parsing sdp origin (4458) DEBUG: parse_sdp_line_ex (AmSdp.cpp:406): parse_sdp_line_ex: found session (4458) DEBUG: parse_sdp_line_ex (AmSdp.cpp:436): parse_sdp_line_ex: found connection (4458) DEBUG: parse_sdp_connection (AmSdp.cpp:527): parse_sdp_line_ex: parse_sdp_connection: parsing sdp connection (4458) DEBUG: parse_sdp_connection (AmSdp.cpp:585): parse_sdp_line_ex: parse_sdp_connection: done parsing sdp connection (4458) DEBUG: parse_sdp_line_ex (AmSdp.cpp:421): parse_sdp_line_ex: found unknown line 't' (4458) DEBUG: parse_sdp_line_ex (AmSdp.cpp:443): parse_sdp_line_ex: found media (4458) DEBUG: parse_sdp_media (AmSdp.cpp:605): parse_sdp_line_ex: parse_sdp_media: parsing media description... (4458) DEBUG: parse_sdp_media (AmSdp.cpp:694): parse_sdp_line_ex: parse_sdp_media: done parsing media description (4458) DEBUG: parse_sdp_attr (AmSdp.cpp:881): found media attr 'ptime' value '20' (4458) DEBUG: attr_check (AmSdp.cpp:1152): sdp_parse_attr: Unknow attribute name used:sqn, plz see RFC4566 (4458) DEBUG: parse_sdp_attr (AmSdp.cpp:881): found media attr 'sqn' value '0' (4458) DEBUG: attr_check (AmSdp.cpp:1152): sdp_parse_attr: Unknow attribute name used:cdsc, plz see RFC4566 (4458) DEBUG: parse_sdp_attr (AmSdp.cpp:881): found media attr 'cdsc' value '1 image udptl t38' (4458) DEBUG: attr_check (AmSdp.cpp:1152): sdp_parse_attr: Unknow attribute name used:cpar, plz see RFC4566 (4458) DEBUG: parse_sdp_attr (AmSdp.cpp:881): found media attr 'cpar' value ' a=T38FaxVersion:0' (4458) DEBUG: attr_check (AmSdp.cpp:1152): sdp_parse_attr: Unknow attribute name used:cpar, plz see RFC4566 (4458) DEBUG: parse_sdp_attr (AmSdp.cpp:881): found media attr 'cpar' value ' a=T38MaxBitRate:14400' (4458) DEBUG: attr_check (AmSdp.cpp:1152): sdp_parse_attr: Unknow attribute name used:cpar, plz see RFC4566 (4458) DEBUG: parse_sdp_attr (AmSdp.cpp:881): found media attr 'cpar' value ' a=T38FaxRateManagement:transferredTCF' (4458) DEBUG: attr_check (AmSdp.cpp:1152): sdp_parse_attr: Unknow attribute name used:cpar, plz see RFC4566 (4458) DEBUG: parse_sdp_attr (AmSdp.cpp:881): found media attr 'cpar' value ' a=T38FaxMaxBuffer:336' (4458) DEBUG: attr_check (AmSdp.cpp:1152): sdp_parse_attr: Unknow attribute name used:cpar, plz see RFC4566 (4458) DEBUG: parse_sdp_attr (AmSdp.cpp:881): found media attr 'cpar' value ' a=T38FaxMaxDatagram:176' (4458) DEBUG: attr_check (AmSdp.cpp:1152): sdp_parse_attr: Unknow attribute name used:cpar, plz see RFC4566 (4458) DEBUG: parse_sdp_attr (AmSdp.cpp:881): found media attr 'cpar' value ' a=T38FaxUdpEC:t38UDPRedundancy' So T38 SDP parsing is just not implemented. Is there a already a patch to do it, or is there a way to ignore unknown attributes to get sdp parsing succesfully or do I have to write my own special sdp parser? regards helmut -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkhWV2cACgkQ4tZeNddg3dznpQCeLC57U8l3tj52HhtzJsO8JWIy 0a8An34R5S3cQfEnZYLNC0BB1dN6gBzK =cfND -----END PGP SIGNATURE----- _______________________________________________ Sems mailing list [email protected] http://lists.iptel.org/mailman/listinfo/sems
