Reset eof state on seeking.

Fixes issue1005.


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18710 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

ffplay.c

@@ -2063,6 +2063,7 @@ static int decode_thread(void *arg)
                 }
             }
             is->seek_req = 0;
+            eof= 0;
         }
 
         /* if the queue are full, no need to read more */