Commit 36b53281 authored by Jindřich Makovička's avatar Jindřich Makovička

bind to the multicast address if possible

Originally committed as revision 16032 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent 0dfcc368
......@@ -336,7 +336,7 @@ int udp_get_file_handle(URLContext *h)
static int udp_open(URLContext *h, const char *uri, int flags)
{
char hostname[1024];
int port, udp_fd = -1, tmp;
int port, udp_fd = -1, tmp, bind_ret = -1;
UDPContext *s = NULL;
int is_output;
const char *p;
......@@ -404,7 +404,13 @@ static int udp_open(URLContext *h, const char *uri, int flags)
goto fail;
/* the bind is needed to give a port to the socket now */
if (bind(udp_fd,(struct sockaddr *)&my_addr, len) < 0)
/* if multicast, try the multicast address bind first */
if (s->is_multicast && !(h->flags & URL_WRONLY)) {
bind_ret = bind(udp_fd,(struct sockaddr *)&s->dest_addr, len);
}
/* bind to the local address if not multicast or if the multicast
* bind failed */
if (bind_ret < 0 && bind(udp_fd,(struct sockaddr *)&my_addr, len) < 0)
goto fail;
len = sizeof(my_addr);
......
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