Added MIPS benchmark in pjmedia-test, and loopback media transport to assist the stream testing

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@2101 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjmedia/src/test/test.h b/pjmedia/src/test/test.h
index f98663d..1ab7ffb 100644
--- a/pjmedia/src/test/test.h
+++ b/pjmedia/src/test/test.h
@@ -28,6 +28,7 @@
 int sdp_test(void);
 int jbuf_main(void);
 int sdp_neg_test(void);
+int mips_test(void);
 
 extern pj_pool_factory *mem;
 void app_perror(pj_status_t status, const char *title);