Merge "res_pjsip_session: properly handle SDP from a forked call with early media"
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commit
114c25e706
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@ -876,15 +876,30 @@ static int handle_negotiated_sdp(struct ast_sip_session *session, const pjmedia_
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struct ast_stream_topology *topology;
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struct ast_stream_topology *topology;
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unsigned int changed = 0;
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unsigned int changed = 0;
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/* This situation can legitimately happen when an SDP is received in a
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* 183 Session Progress message. In that case, everything's been done
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* by the time this function is called and there are no more pending
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* streams.
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*/
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if (!session->pending_media_state->topology) {
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if (!session->pending_media_state->topology) {
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ast_debug(1, "Pending topology was NULL for channel '%s'\n",
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if (session->active_media_state->topology) {
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session->channel ? ast_channel_name(session->channel) : "unknown");
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/*
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return 0;
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* This happens when we have negotiated media after receiving a 183,
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* and we're now receiving a 200 with a new SDP. In this case, there
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* is active_media_state, but the pending_media_state has been reset.
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*/
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struct ast_sip_session_media_state *active_media_state_clone;
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active_media_state_clone =
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ast_sip_session_media_state_clone(session->active_media_state);
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if (!active_media_state_clone) {
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ast_log(LOG_WARNING, "Unable to clone active media state for channel '%s'\n",
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session->channel ? ast_channel_name(session->channel) : "unknown");
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return -1;
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}
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ast_sip_session_media_state_free(session->pending_media_state);
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session->pending_media_state = active_media_state_clone;
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} else {
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ast_log(LOG_WARNING, "No pending or active media state for channel '%s'\n",
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session->channel ? ast_channel_name(session->channel) : "unknown");
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return -1;
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}
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}
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}
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/* If we're handling negotiated streams, then we should already have set
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/* If we're handling negotiated streams, then we should already have set
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