diff --git a/coreapi/linphonecore.c b/coreapi/linphonecore.c
index 417751776..0da7ef08e 100644
--- a/coreapi/linphonecore.c
+++ b/coreapi/linphonecore.c
@@ -3498,7 +3498,12 @@ void linphone_core_set_native_preview_window_id(LinphoneCore *lc, unsigned long
 void linphone_core_use_preview_window(LinphoneCore *lc, bool_t yesno){
 	lc->use_preview_window=yesno;
 }
-
+/**
+ *returns current device orientation
+ */
+int linphone_core_get_device_rotation(LinphoneCore *lc ) {
+	return lc->device_rotation;
+}
 /**
  * Tells the core the device current orientation. This can be used by capture filters
  * on mobile devices to select between portrait/landscape mode and to produce properly
diff --git a/coreapi/linphonecore.h b/coreapi/linphonecore.h
index 21335bcfe..5da42019d 100644
--- a/coreapi/linphonecore.h
+++ b/coreapi/linphonecore.h
@@ -934,6 +934,7 @@ unsigned long linphone_core_get_native_preview_window_id(const LinphoneCore *lc)
 void linphone_core_set_native_preview_window_id(LinphoneCore *lc, unsigned long id);
 
 void linphone_core_use_preview_window(LinphoneCore *lc, bool_t yesno);
+int linphone_core_get_device_rotation(LinphoneCore *lc );
 void linphone_core_set_device_rotation(LinphoneCore *lc, int rotation);
 
 /*play/record support: use files instead of soundcard*/
diff --git a/mediastreamer2 b/mediastreamer2
index 5ee91bbaf..4ae090314 160000
--- a/mediastreamer2
+++ b/mediastreamer2
@@ -1 +1 @@
-Subproject commit 5ee91bbafef99fea6e56a31714af4eceaf0d6553
+Subproject commit 4ae0903143af9ab2d149909e8ac66ca600119e4a