From: PeterHolik <peter@holik.at>
Date: Mon, 15 Jan 2024 11:28:15 +0000 (+0100)
Subject: chan_rtp.c: MulticastRTP missing refcount without codec option
X-Git-Tag: 21.2.0-rc1~38
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=727a4cceec8bbee5c9c4529308010b66da9cfd38;p=thirdparty%2Fasterisk.git

chan_rtp.c: MulticastRTP missing refcount without codec option

Fixes: #529
(cherry picked from commit 3b46872a8f689898afe3f143b9316a8992dbb16a)
---

diff --git a/channels/chan_rtp.c b/channels/chan_rtp.c
index d6342c47c2..97fc2408c3 100644
--- a/channels/chan_rtp.c
+++ b/channels/chan_rtp.c
@@ -129,7 +129,8 @@ static struct ast_format *derive_format_from_cap(struct ast_format_cap *cap)
 		 * assignments. Signed linear @ 8kHz does not map, so if that is our
 		 * only capability, we force μ-law instead.
 		 */
-		fmt = ast_format_ulaw;
+		ao2_ref(fmt, -1);
+		fmt = ao2_bump(ast_format_ulaw);
 	}
 
 	return fmt;