Do not send invokes to RTMP server if we are not connected to it.

Patch by Sergiy (server.connect("gmail.com").selectAddress("piratfm"))



git-svn-id: file:///var/local/repositories/ffmpeg/trunk@20745 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavformat/rtmpproto.c

@@ -706,8 +706,10 @@ static int rtmp_close(URLContext *h)
         rt->flv_data = NULL;
         if (rt->out_pkt.data_size)
             ff_rtmp_packet_destroy(&rt->out_pkt);
+        if (rt->state > STATE_FCPUBLISH)
             gen_fcunpublish_stream(h, rt);
     }
+    if (rt->state > STATE_HANDSHAKED)
         gen_delete_stream(h, rt);
 
     av_freep(&rt->flv_data);