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authorMartin Storsjö <martin@martin.st>2011-01-06 15:16:50 +0000
committerMartin Storsjö <martin@martin.st>2011-01-06 15:16:50 +0000
commit21a569f3022e968d74bfde4d1bfff8dab5edd41c (patch)
tree6c8e48febc3977bd1665015b6d8d90a3c79db25f /doc/protocols.texi
parentbabd19ce2e38446cdabe0f648c6189c7f1dc7378 (diff)
downloadffmpeg-21a569f3022e968d74bfde4d1bfff8dab5edd41c.tar.gz
udp: Allow specifying the connect option in udp_set_remote_url, too
If the remote address is updated later with this function, the caller shouldn't set the connect option until in this call. Originally committed as revision 26245 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'doc/protocols.texi')
-rw-r--r--doc/protocols.texi4
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/protocols.texi b/doc/protocols.texi
index b76e45c3d3..600f470458 100644
--- a/doc/protocols.texi
+++ b/doc/protocols.texi
@@ -415,9 +415,13 @@ set the time to live value (for multicast only)
@item connect=@var{1|0}
Initialize the UDP socket with @code{connect()}. In this case, the
destination address can't be changed with udp_set_remote_url later.
+If the destination address isn't known at the start, this option can
+be specified in udp_set_remote_url, too.
This allows finding out the source address for the packets with getsockname,
and makes writes return with AVERROR(ECONNREFUSED) if "destination
unreachable" is received.
+For receiving, this gives the benefit of only receiving packets from
+the specified peer address/port.
@end table
Some usage examples of the udp protocol with @file{ffmpeg} follow.