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udpsrc: fix multicast support on windows builds
On windows builds, sets source address for bind to INADDR_ANY, while maintaining the original multicast group address for subsequent join. Fixes #595978
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parent
e25cdc31d3
commit
0773eed960
1 changed files with 29 additions and 6 deletions
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@ -758,6 +758,7 @@ gst_udpsrc_start (GstBaseSrc * bsrc)
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GstUDPSrc *src;
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gint ret;
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int rcvsize;
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struct sockaddr_storage bind_address;
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#ifdef G_OS_WIN32
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gint len;
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#else
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@ -789,14 +790,36 @@ gst_udpsrc_start (GstBaseSrc * bsrc)
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GST_DEBUG_OBJECT (src, "binding on port %d", src->uri.port);
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len = gst_udp_get_sockaddr_length (&src->myaddr);
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if ((ret = bind (src->sock.fd, (struct sockaddr *) &src->myaddr, len)) < 0)
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/* Take a temporary copy of the address in case we need to fix it for bind */
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memcpy (&bind_address, &src->myaddr, sizeof (struct sockaddr_storage));
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#ifdef G_OS_WIN32
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/* Windows does not allow binding to a multicast group so fix source address */
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if (gst_udp_is_multicast (&src->myaddr)) {
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switch (((struct sockaddr *) &bind_address)->sa_family) {
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case AF_INET:
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((struct sockaddr_in *) &bind_address)->sin_addr.s_addr =
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htonl (INADDR_ANY);
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break;
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case AF_INET6:
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((struct sockaddr_in6 *) &bind_address)->sin6_addr = in6addr_any;
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break;
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default:
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break;
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}
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}
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#endif
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len = gst_udp_get_sockaddr_length (&bind_address);
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if ((ret = bind (src->sock.fd, (struct sockaddr *) &bind_address, len)) < 0)
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goto bind_error;
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len = sizeof (src->myaddr);
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if ((ret = getsockname (src->sock.fd, (struct sockaddr *) &src->myaddr,
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&len)) < 0)
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goto getsockname_error;
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if (!gst_udp_is_multicast (&src->myaddr)) {
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len = sizeof (src->myaddr);
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if ((ret = getsockname (src->sock.fd, (struct sockaddr *) &src->myaddr,
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&len)) < 0)
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goto getsockname_error;
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}
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} else {
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GST_DEBUG_OBJECT (src, "using provided socket %d", src->sockfd);
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/* we use the configured socket, try to get some info about it */
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