Avoid 100% CPU useage at EOF.

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18625 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

ffplay.c

@@ -2079,6 +2079,7 @@ static int decode_thread(void *arg)
             pkt->size=0;
             pkt->stream_index= is->video_stream;
             packet_queue_put(&is->videoq, pkt);
+            SDL_Delay(10);
             continue;
         }
         ret = av_read_frame(ic, pkt);