In Sofia-SIP application I want to implement a call with SDP like:
...
m=audio 8000 RTP/AVP 0 101
a=curr:qos local sendrecv
a=curr:qos remote none
a=des:qos optional local sendrecv
a=des:qos optional remote sendrecv
a=rtpmap: 0 PCMU/8000
a=ptime:30
in which I added 4 extra attributes to a media line (curr and des)
they are in a string : g_chLocalSdpMedia
and I tried to use this SDP by calling
nua_invite(op->handle,
/* other tags as needed ... */
//SOATAG_LOCAL_SDP_STR(g_chLocalSdpMedia),
//SOATAG_LOCAL_SDP
(g_chLocalSdpMedia),
SOATAG_USER_SDP_STR(g_chLocalSdpMedia),
SOATAG_RTP_SORT(SOA_RTP_SORT_LOCAL),
SOATAG_RTP_SELECT(SOA_RTP_SELECT_SINGLE),
TAG_END());
In g_chLocalSdpMedia the attributes are all inside, used
SOATAG_LOCAL_SDP or SOATAG_LOCAL_SDP
But the attributes were discarded when INVITE was sent out, do you
know some ways to implement this without or with modifications to
Sofia-SIP?
Thanks!
Weijian
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