Alright, from the beginning: --------------------------------------------------- That's how I create the stack:
sip_stack = nua_create( sip_root, sip_evt_dispatcher, reinterpret_cast< nua_magic_t* >( this ), TAG_IF( (! uas_id.empty()), SIPTAG_USER_AGENT_STR( uas_id.c_str() ) ), SIPTAG_ALLOW_STR( "INVITE,ACK,CANCEL,BYE,OPTIONS,PRACK,UPDATE,MESSAGE" ), NUTAG_URL( my_url.c_str() ), TAG_END() ); --------------------------------------------------- Placing a call involves these calls: nh = nua_handle( sip_stack, reinterpret_cast< nua_hmagic_t* >( this ), SIPTAG_TO( to ), TAG_IF( (NULL != from), SIPTAG_FROM( from ) ), TAG_IF( ((NULL == from) && (strlen(from_user ? from_user : "") > 0)), NUTAG_M_USERNAME( from_user ) ), TAG_IF( session_timer.useSessionTimer(), NUTAG_SESSION_REFRESHER( nua_local_refresher ) ), TAG_IF( session_timer.useSessionTimer(), NUTAG_MIN_SE( session_timer.minimumSessionExpires() ) ), TAG_IF( session_timer.useSessionTimer(), NUTAG_SESSION_TIMER( session_timer.sessionExpires() ) ), TAG_IF( session_timer.useSessionTimer(), NUTAG_REFRESH_WITHOUT_SDP( 1 ) ), TAG_END() ); <some other stuff (i.e. generation of SDP string)> nua_invite( nh, TAG_IF( (! additional_header_str.empty()), SIPTAG_HEADER_STR( additional_header_str.c_str() ) ), SOATAG_USER_SDP_STR( sdp_os.str().c_str() ), SOATAG_RTP_SELECT( SOA_RTP_SELECT_COMMON ), TAG_END() ); --------------------------------------------------- Accepting a call looks like this: nua_respond( reinterpret_cast< nua_handle_t* >( call_id() ), status_code, sip_status_phrase( status_code ), TAG_IF( strlen( sdp_str ), SOATAG_USER_SDP_STR( sdp_str ) ), TAG_IF( (! aux_codecs.empty()), SOATAG_AUDIO_AUX( aux_codecs.c_str() ) ), TAG_IF( strlen( reason_str ), SIPTAG_REASON_STR( reason_str ) ), TAG_IF( use_session_timer, NUTAG_SESSION_REFRESHER( nua_local_refresher ) ), TAG_IF( use_session_timer, NUTAG_MIN_SE( session_timer.minimumSessionExpires() ) ), TAG_IF( use_session_timer, NUTAG_SESSION_TIMER( session_timer.sessionExpires() ) ), TAG_IF( use_session_timer, NUTAG_REFRESH_WITHOUT_SDP( 1 ) ), TAG_END() ); --------------------------------------------------- My first (naive) attempt was trying to update the media mode like so: std::string sdp_media_mode_line( "a=" ); sdp_media_mode_line.append( media_mode.sdp_str() ); nua_invite( reinterpret_cast< nua_handle_t* >( call_id() ), SOATAG_USER_SDP_STR( sdp_media_mode_line.c_str() ), TAG_END() ); Of course this doesn't work since SOA doesn't know what media that attribute belongs to... I didn't try to include the media line (yet). What I'm basically trying to do is to change a certain attribute for all media of a certain type at once. Is there a more elegant way than USER_SDP_STR, or is it the recommended way to go? Regards, Andreas 03.09.2014, 15:23, "Michael Jerris" <m...@jerris.com>: > I know it works with USER_SDP_STR, what exactly is your call to > update/invite? are you doing ACTIVE_AUDIO(1) ? > > On Sep 3, 2014, at 9:13 AM, Andreas Wehrmann <a.wehrm...@yandex.com> wrote: >> Hi! >> >> I'm somewhat at a loss here. >> I'm in a SIP call that I made or accepted with one of >> a=[inactive|recvonly|sendonly|sendrecv] in the SDP. >> There is only one media (audio). >> When I make or answer a call, I create the complete SDP and provide it >> to nua with SOATAG_USER_SDP_STR which is working just fine. >> >> Now I would like to be able to change the media mode mid-call using the >> same SDP as before with a new media mode setting, but how do I do that? >> I tried calling nua_update/nua_invite using SOATAG_ACTIVE_AUDIO but it >> was to no avail. >> >> Is SOATAG_ACTIVE_AUDIO the way to go or should I be doing something >> different? >> >> Any help is appreciated. >> >> Best regards, >> Andreas ------------------------------------------------------------------------------ Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/ _______________________________________________ Sofia-sip-devel mailing list Sofia-sip-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sofia-sip-devel