From 34ecc3975fa4f7d27deafd7eec636dc1fa828a09 Mon Sep 17 00:00:00 2001
From: Thijs <thijsvermeir@telenet.be>
Date: Sat, 28 Oct 2006 17:16:18 +0000
Subject: [PATCH] Make it possible to reuse UDP socket (optional, disabled by
default) Patch by Thijs % thijsvermeir A telenet P be % Original thread:
Subject: Re: [Ffmpeg-devel] [PATCH proposal] Reuse UDP socket v2 Date:
October 28, 2006 11:09:00 AM CEDT
Originally committed as revision 6825 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavformat/udp.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/libavformat/udp.c b/libavformat/udp.c
index 861da00e5c5..96fa4e152c1 100644
--- a/libavformat/udp.c
+++ b/libavformat/udp.c
@@ -40,6 +40,7 @@ typedef struct {
int ttl;
int is_multicast;
int local_port;
+ int reuse_socket;
#ifndef CONFIG_IPV6
struct ip_mreq mreq;
struct sockaddr_in dest_addr;
@@ -236,6 +237,7 @@ static int udp_ipv6_set_local(URLContext *h) {
* 'ttl=n' : set the ttl value (for multicast only)
* 'localport=n' : set the local port
* 'pkt_size=n' : set max packet size
+ * 'reuse=1' : enable reusing the socket
*
* @param s1 media file context
* @param uri of the remote server
@@ -311,9 +313,11 @@ static int udp_open(URLContext *h, const char *uri, int flags)
s->ttl = 16;
s->is_multicast = 0;
s->local_port = 0;
+ s->reuse_socket = 0;
p = strchr(uri, '?');
if (p) {
s->is_multicast = find_info_tag(buf, sizeof(buf), "multicast", p);
+ s->reuse_socket = find_info_tag(buf, sizeof(buf), "reuse", p);
if (find_info_tag(buf, sizeof(buf), "ttl", p)) {
s->ttl = strtol(buf, NULL, 10);
}
@@ -351,6 +355,10 @@ static int udp_open(URLContext *h, const char *uri, int flags)
my_addr.sin_port = htons(s->local_port);
}
+ if (s->reuse_socket)
+ if (setsockopt (udp_fd, SOL_SOCKET, SO_REUSEADDR, &(s->reuse_socket), sizeof(s->reuse_socket)) != 0)
+ goto fail;
+
/* the bind is needed to give a port to the socket now */
if (bind(udp_fd,(struct sockaddr *)&my_addr, sizeof(my_addr)) < 0)
goto fail;
--
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