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-rw-r--r--libavformat/network.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/libavformat/network.h b/libavformat/network.h
index d1f3d29455..07112ef7ef 100644
--- a/libavformat/network.h
+++ b/libavformat/network.h
@@ -155,4 +155,11 @@ const char *ff_gai_strerror(int ecode);
#define INET6_ADDRSTRLEN INET_ADDRSTRLEN
#endif
+#ifndef IN_MULTICAST
+#define IN_MULTICAST(a) ((((uint32_t)(a)) & 0xf0000000) == 0xe0000000)
+#endif
+#ifndef IN6_IS_ADDR_MULTICAST
+#define IN6_IS_ADDR_MULTICAST(a) (((uint8_t *) (a))[0] == 0xff)
+#endif
+
#endif /* AVFORMAT_NETWORK_H */