[Asterisk-code-review] chan sip: Remember SDP negotiation on SIP CODEC INBOUND. (asterisk[master])

[Alexander Traud]

Alexander Traud has uploaded a new change for review. ( https://gerrit.asterisk.org/4693 )

Change subject: chan_sip: Remember SDP negotiation on SIP_CODEC_INBOUND.
......................................................................

chan_sip: Remember SDP negotiation on SIP_CODEC_INBOUND.

After a SIP_CODEC_INBOUND in the dialplan, do not continue with cached formats
but remember the joint format. Cached formats contain default parameters,
often create an empty fmtp line. However, a joint format might have passed
format_get_joint(.) in a res_format_attr_* module (like Opus Codec) and
contain the resulting format parameters from a SDP negotiation.

ASTERISK-26691 #close

Change-Id: I35712d98a793d4c3efdd156cec57deab9014b1dc
---
M channels/chan_sip.c
1 file changed, 6 insertions(+), 0 deletions(-)


  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/93/4693/1

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index af17a38..288933f 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -7369,6 +7369,12 @@
 
 		ao2_ref(fmt, -1);
 	}
+
+	/* The original joint formats may have contained negotiated parameters (fmtp)
+	 * like the Opus Codec or iLBC 20. The cached formats contain the default
+	 * parameters, which could be different than the negotiated (joint) result. */
+	ast_format_cap_replace_from_cap(p->jointcaps, original_jointcaps, AST_MEDIA_TYPE_UNKNOWN);
+
 	ao2_ref(original_jointcaps, -1);
 	return;
  }

-- 
To view, visit https://gerrit.asterisk.org/4693
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I35712d98a793d4c3efdd156cec57deab9014b1dc
Gerrit-PatchSet: 1
Gerrit-Project: asterisk
Gerrit-Branch: master
Gerrit-Owner: Alexander Traud <pabstraud at compuserve.com>