diff --git a/gst-libs/gst/basecamerabinsrc/gstbasecamerasrc.h b/gst-libs/gst/basecamerabinsrc/gstbasecamerasrc.h
index c433b6694f..1c412e493f 100644
--- a/gst-libs/gst/basecamerabinsrc/gstbasecamerasrc.h
+++ b/gst-libs/gst/basecamerabinsrc/gstbasecamerasrc.h
@@ -22,6 +22,11 @@
 #ifndef __GST_BASE_CAMERA_SRC_H__
 #define __GST_BASE_CAMERA_SRC_H__
 
+#ifndef GST_USE_UNSTABLE_API
+#warning "GstBaseCameraSrc is unstable API and may change in future."
+#warning "You can define GST_USE_UNSTABLE_API to avoid this warning."
+#endif
+
 #include <gst/gst.h>
 #include <gst/gstbin.h>
 #include <gst/interfaces/photography.h>
diff --git a/gst-libs/gst/basecamerabinsrc/gstcamerabin-enum.h b/gst-libs/gst/basecamerabinsrc/gstcamerabin-enum.h
index 590cb68826..c6dbf043d2 100644
--- a/gst-libs/gst/basecamerabinsrc/gstcamerabin-enum.h
+++ b/gst-libs/gst/basecamerabinsrc/gstcamerabin-enum.h
@@ -21,6 +21,11 @@
 #ifndef __GST_CAMERABIN_ENUM_H__
 #define __GST_CAMERABIN_ENUM_H__
 
+#ifndef GST_USE_UNSTABLE_API
+#warning "camerabin enums are unstable API and may change in future."
+#warning "You can define GST_USE_UNSTABLE_API to avoid this warning."
+#endif
+
 #include <gst/gst.h>
 
 G_BEGIN_DECLS
diff --git a/gst-libs/gst/basecamerabinsrc/gstcamerabinpreview.h b/gst-libs/gst/basecamerabinsrc/gstcamerabinpreview.h
index b9df7a26e5..4c8cf21873 100644
--- a/gst-libs/gst/basecamerabinsrc/gstcamerabinpreview.h
+++ b/gst-libs/gst/basecamerabinsrc/gstcamerabinpreview.h
@@ -22,6 +22,11 @@
 #ifndef __CAMERABIN_PREVIEW_H_
 #define __CAMERABIN_PREVIEW_H_
 
+#ifndef GST_USE_UNSTABLE_API
+#warning "camera bin preview is unstable API and may change in future."
+#warning "You can define GST_USE_UNSTABLE_API to avoid this warning."
+#endif
+
 #include <gst/gst.h>
 
 typedef struct