libs:base: Properly declare APIs as UNSTABLE

diff --git a/libs/gst/base/gstaggregator.h b/libs/gst/base/gstaggregator.h
index 3965ccc..507da13 100644 (file)
--- a/libs/gst/base/gstaggregator.h
+++ b/libs/gst/base/gstaggregator.h
@@ -23,6 +23,11 @@
 #ifndef __GST_AGGREGATOR_H__
 #define __GST_AGGREGATOR_H__
 
+#ifndef GST_USE_UNSTABLE_API
+#warning "The Base library from gst-plugins-bad 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>
 
 G_BEGIN_DECLS