change PF_INET to AF_INET to be consistent in the whole project. PF_INET is deprecated, while AF_INET is referred by the POSIX standards

Originally committed as revision 8073 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/barpainet.h

@@ -27,7 +27,6 @@
 
 # include <socket.h>
 int inet_aton (const char * str, struct in_addr * add);
-# define PF_INET AF_INET
 # define SO_SNDBUF 0x40000001
 
 /* fake */

libavformat/tcp.c

@@ -73,7 +73,7 @@ static int tcp_open(URLContext *h, const char *uri, int flags)
     if (resolve_host(&dest_addr.sin_addr, hostname) < 0)
         goto fail;
 
-    fd = socket(PF_INET, SOCK_STREAM, 0);
+    fd = socket(AF_INET, SOCK_STREAM, 0);
     if (fd < 0)
         goto fail;
     fcntl(fd, F_SETFL, O_NONBLOCK);

libavformat/udp.c

@@ -330,7 +330,7 @@ static int udp_open(URLContext *h, const char *uri, int flags)
     }
 
 #ifndef CONFIG_IPV6
-    udp_fd = socket(PF_INET, SOCK_DGRAM, 0);
+    udp_fd = socket(AF_INET, SOCK_DGRAM, 0);
     if (udp_fd < 0)
         goto fail;