Added systest function to select which audio device to use (re #1068: misc fixes)

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@3164 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjsip-apps/src/pjsystest/systest.h b/pjsip-apps/src/pjsystest/systest.h
index 18f0c18..ddc286a 100644
--- a/pjsip-apps/src/pjsystest/systest.h
+++ b/pjsip-apps/src/pjsystest/systest.h
@@ -70,6 +70,7 @@
 
 /* API, to be called by main() */
 int	    systest_init(void);
+int	    systest_set_dev(int cap_dev, int play_dev);
 int	    systest_run(void);
 void	    systest_save_result(const char *filename);
 void	    systest_deinit(void);