From: Viktor Litvinov <viktor.litvinov@net2phone.com>
Date: Tue, 1 Oct 2024 23:57:12 +0000 (+0200)
Subject: res_rtp_asterisk.c: Set Mark on rtp when timestamp skew is too big
X-Git-Tag: 21.7.0-rc1~46
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8771180e02037ee45500e055bfa2f0022c087c4c;p=thirdparty%2Fasterisk.git

res_rtp_asterisk.c: Set Mark on rtp when timestamp skew is too big

Set Mark bit in rtp stream when timestamp skew is bigger than MAX_TIMESTAMP_SKEW.

Fixes: #927
(cherry picked from commit 607de362307714338ab11a48a2d62e30497ca410)
---

diff --git a/res/res_rtp_asterisk.c b/res/res_rtp_asterisk.c
index 1953e15e29..60e931c71b 100644
--- a/res/res_rtp_asterisk.c
+++ b/res/res_rtp_asterisk.c
@@ -5267,6 +5267,11 @@ static int rtp_raw_write(struct ast_rtp_instance *instance, struct ast_frame *fr
 	}
 
 	if (ast_test_flag(frame, AST_FRFLAG_HAS_TIMING_INFO)) {
+		if (abs(frame->ts * rate - (int)rtp->lastts) > MAX_TIMESTAMP_SKEW) {
+			ast_verbose("(%p) RTP audio difference is %d set mark\n",
+				instance, abs(frame->ts * rate - (int)rtp->lastts));
+			mark = 1;
+		}
 		rtp->lastts = frame->ts * rate;
 	}