diff options
| -rw-r--r-- | libavformat/udp.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/libavformat/udp.c b/libavformat/udp.c index e91b95cde4..3c63f516a2 100644 --- a/libavformat/udp.c +++ b/libavformat/udp.c @@ -382,8 +382,9 @@ static int udp_open(URLContext *h, const char *uri, int flags) /* If multicast, try binding the multicast address first, to avoid * receiving UDP packets from other sources aimed at the same UDP - * port. This fails on windows. */ - if (s->is_multicast && (h->flags & AVIO_FLAG_READ)) { + * port. This fails on windows. This makes sending to the same address + * using sendto() fail, so only do it if we're opened in read-only mode. */ + if (s->is_multicast && !(h->flags & AVIO_FLAG_WRITE)) { bind_ret = bind(udp_fd,(struct sockaddr *)&s->dest_addr, len); } /* bind to the local address if not multicast or if the multicast |