[Asterisk-code-review] res pjsip session: Don't add declined stream if one does not... (asterisk[15])

[Joshua Colp]

Joshua Colp has uploaded this change for review. ( https://gerrit.asterisk.org/10172


Change subject: res_pjsip_session: Don't add declined stream if one does not exist.
......................................................................

res_pjsip_session: Don't add declined stream if one does not exist.

Given a scenario where a session refresh was done with a removed
stream we would always add a removed stream to the outgoing SDP
even if one did not already exist.

This change makes it so that a removed stream is only placed into
the SDP if one already exists.

ASTERISK-28047

Change-Id: Ibb97d21cdeb87a8acae0c720861b0ff255708442
---
M res/res_pjsip_session.c
1 file changed, 5 insertions(+), 0 deletions(-)



  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/72/10172/1

diff --git a/res/res_pjsip_session.c b/res/res_pjsip_session.c
index 1f9a382..68dcf06 100644
--- a/res/res_pjsip_session.c
+++ b/res/res_pjsip_session.c
@@ -1573,6 +1573,11 @@
 
 				/* No need to do anything with stream if it's media state is removed */
 				if (ast_stream_get_state(stream) == AST_STREAM_STATE_REMOVED) {
+					/* If there is no existing stream we can just not have this stream in the topology at all. */
+					if (!existing_stream) {
+						ast_stream_topology_del_stream(media_state->topology, index);
+						index -= 1;
+					}
 					continue;
 				}
 

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Gerrit-Project: asterisk
Gerrit-Branch: 15
Gerrit-MessageType: newchange
Gerrit-Change-Id: Ibb97d21cdeb87a8acae0c720861b0ff255708442
Gerrit-Change-Number: 10172
Gerrit-PatchSet: 1
Gerrit-Owner: Joshua Colp <jcolp at digium.com>
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