typedef struct _GstBuffer GstBuffer;
typedef struct _GstBufferPool GstBufferPool;
+#include <gst/gstmeta.h>
+
#define GST_TYPE_BUFFER (_gst_buffer_type)
#define GST_IS_BUFFER(obj) (GST_IS_MINI_OBJECT_TYPE(obj, GST_TYPE_BUFFER))
#define GST_BUFFER_CAST(obj) ((GstBuffer *)(obj))