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author | Jindřich Makovička <makovick@gmail.com> | 2008-12-07 17:29:09 +0000 |
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committer | Jindřich Makovička <makovick@gmail.com> | 2008-12-07 17:29:09 +0000 |
commit | 36b532815cb83acc1d773cea63eea52303bedddc (patch) | |
tree | 40f57e95f6ea9a94546d3ef5fc958882feab94fd /libavformat/udp.c | |
parent | 0dfcc368188d9c8ffba79f2165521a43cde62ea0 (diff) | |
download | ffmpeg-streaming-36b532815cb83acc1d773cea63eea52303bedddc.zip ffmpeg-streaming-36b532815cb83acc1d773cea63eea52303bedddc.tar.gz |
bind to the multicast address if possible
Originally committed as revision 16032 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavformat/udp.c')
-rw-r--r-- | libavformat/udp.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/libavformat/udp.c b/libavformat/udp.c index bbdb930..59ba418 100644 --- a/libavformat/udp.c +++ b/libavformat/udp.c @@ -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); |