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| author | Martin Storsjö <martin@martin.st> | 2010-10-08 11:58:47 +0000 |
|---|---|---|
| committer | Martin Storsjö <martin@martin.st> | 2010-10-08 11:58:47 +0000 |
| commit | 6898677e54a48f90665053359126bd71c0ed4a85 (patch) | |
| tree | 63214f4781c19e6df50ddac1620f6cc478530612 /libavformat/sdp.c | |
| parent | 6ded3a0411d69e4039f655f8c76c4d8a36ab221b (diff) | |
| download | ffmpeg-6898677e54a48f90665053359126bd71c0ed4a85.tar.gz | |
sdp: Only specify the TTL for IPv4 addresses
According to RFC 4566, a TTL value must not be present for IPv6 multicast.
Originally committed as revision 25412 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavformat/sdp.c')
| -rw-r--r-- | libavformat/sdp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libavformat/sdp.c b/libavformat/sdp.c index 3ea31efc32..63169a929d 100644 --- a/libavformat/sdp.c +++ b/libavformat/sdp.c @@ -56,7 +56,9 @@ static void sdp_write_address(char *buff, int size, const char *dest_addr, if (dest_addr) { if (!dest_type) dest_type = "IP4"; - if (ttl > 0) { + if (ttl > 0 && !strcmp(dest_type, "IP4")) { + /* The TTL should only be specified for IPv4 multicast addresses, + * not for IPv6. */ av_strlcatf(buff, size, "c=IN %s %s/%d\r\n", dest_type, dest_addr, ttl); } else { av_strlcatf(buff, size, "c=IN %s %s\r\n", dest_type, dest_addr); |