From 7fd16b8a77357d6a9aa667276da6563cd44b022a Mon Sep 17 00:00:00 2001
From: Wim Taymans <wtaymans@redhat.com>
Date: Fri, 7 Oct 2022 12:58:42 +0200
Subject: [PATCH] module-rtp: set higher priotity on sender socket

---
 src/modules/module-rtp-sink.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/modules/module-rtp-sink.c b/src/modules/module-rtp-sink.c
index 67b28ed88..d4e30a6bc 100644
--- a/src/modules/module-rtp-sink.c
+++ b/src/modules/module-rtp-sink.c
@@ -30,7 +30,7 @@
 #include <sys/socket.h>
 #include <sys/ioctl.h>
 #include <arpa/inet.h>
-#include <netinet/in.h>
+#include <netinet/ip.h>
 #include <net/if.h>
 #include <ctype.h>
 
@@ -425,6 +425,15 @@ static int make_multicast_socket(struct sockaddr_storage *src, socklen_t src_len
 	if (setsockopt(fd, IPPROTO_IP, IP_MULTICAST_TTL, &val, sizeof(val)) < 0)
 		pw_log_warn("setsockopt(IP_MULTICAST_TTL) failed: %m");
 
+	val = 6;
+	if (setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &val, sizeof(val)) < 0)
+		pw_log_warn("setsockopt(SO_PRIORITY) failed: %m");
+
+	val = IPTOS_LOWDELAY;
+	if (setsockopt(fd, IPPROTO_IP, IP_TOS, &val, sizeof(val)) < 0)
+		pw_log_warn("setsockopt(SO_PRIORITY) failed: %m");
+
+
 	return fd;
 error:
 	close(fd);