Initial support for stereo codecs, and added L16 codecs. Also better handling for case remote media is restarted

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@412 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjsip-apps/build/Samples-vc.mak b/pjsip-apps/build/Samples-vc.mak
index 1aa5d9a..857f0c1 100644
--- a/pjsip-apps/build/Samples-vc.mak
+++ b/pjsip-apps/build/Samples-vc.mak
@@ -5,9 +5,9 @@
 LIBEXT = .lib
 
 !if "$(BUILD_MODE)" == "debug"
-BUILD_FLAGS = /MTd /Od /Zi
+BUILD_FLAGS = /MTd /Od /Zi /W4
 !else
-BUILD_FLAGS = /Ox /MD /DNDEBUG
+BUILD_FLAGS = /Ox /MD /DNDEBUG /W4
 !endif
 
 PJLIB_LIB = ..\..\pjlib\lib\pjlib-$(MACHINE_NAME)-$(OS_NAME)-$(CC_NAME)$(LIBEXT)