Redesign RTP/RTCP stuffs so that stream does not create thread implicitly. Changed pjmedia_endpt_create() API.

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@350 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjsip-apps/src/samples/level.c b/pjsip-apps/src/samples/level.c
index 034c695..8723d62 100644
--- a/pjsip-apps/src/samples/level.c
+++ b/pjsip-apps/src/samples/level.c
@@ -84,7 +84,7 @@
      * Initialize media endpoint.
      * This will implicitly initialize PJMEDIA too.
      */
-    status = pjmedia_endpt_create(&cp.factory, &med_endpt);
+    status = pjmedia_endpt_create(&cp.factory, NULL, 1, &med_endpt);
     PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
 
     /* Create memory pool for our file player */