diff --git a/spa/include/spa/buffer/meta.h b/spa/include/spa/buffer/meta.h
index e270c56ca..ec09f18bd 100644
--- a/spa/include/spa/buffer/meta.h
+++ b/spa/include/spa/buffer/meta.h
@@ -39,16 +39,17 @@ extern "C" {
 
 enum spa_meta_type {
 	SPA_META_Invalid,
-	SPA_META_Header,	/**< struct spa_meta_header */
-	SPA_META_VideoCrop,	/**< struct spa_meta_region with cropping data */
-	SPA_META_VideoDamage,	/**< array of struct spa_meta_region with damage, where an invalid entry or end-of-array marks the end. */
-	SPA_META_Bitmap,	/**< struct spa_meta_bitmap */
-	SPA_META_Cursor,	/**< struct spa_meta_cursor */
-	SPA_META_Control,	/**< metadata contains a spa_meta_control
-				  *  associated with the data */
-	SPA_META_Busy,		/**< don't write to buffer when count > 0 */
+	SPA_META_Header,		/**< struct spa_meta_header */
+	SPA_META_VideoCrop,		/**< struct spa_meta_region with cropping data */
+	SPA_META_VideoDamage,		/**< array of struct spa_meta_region with damage, where an invalid entry or end-of-array marks the end. */
+	SPA_META_Bitmap,		/**< struct spa_meta_bitmap */
+	SPA_META_Cursor,		/**< struct spa_meta_cursor */
+	SPA_META_Control,		/**< metadata contains a spa_meta_control
+					  *  associated with the data */
+	SPA_META_Busy,			/**< don't write to buffer when count > 0 */
+	SPA_META_VideoTransform,	/**< struct spa_meta_transform */
 
-	_SPA_META_LAST,		/**< not part of ABI/API */
+	_SPA_META_LAST,			/**< not part of ABI/API */
 };
 
 /**
@@ -161,6 +162,24 @@ struct spa_meta_busy {
 	uint32_t count;			/**< number of users busy with the buffer */
 };
 
+enum spa_meta_videotransform_value {
+	SPA_META_TRANSFORMATION_None = 0,	/**< no transform */
+	SPA_META_TRANSFORMATION_90,		/**< 90 degree counter-clockwise */
+	SPA_META_TRANSFORMATION_180,		/**< 180 degree counter-clockwise */
+	SPA_META_TRANSFORMATION_270,		/**< 270 degree counter-clockwise */
+	SPA_META_TRANSFORMATION_Flipped,	/**< 180 degree flipped around the vertical axis. Equivalent
+						  * to a reflexion through the vertical line splitting the
+						  * bufffer in two equal sized parts */
+	SPA_META_TRANSFORMATION_Flipped90,	/**< flip then rotate around 90 degree counter-clockwise */
+	SPA_META_TRANSFORMATION_Flipped180,	/**< flip then rotate around 180 degree counter-clockwise */
+	SPA_META_TRANSFORMATION_Flipped270,	/**< flip then rotate around 270 degree counter-clockwise */
+};
+
+/** a transformation of the buffer */
+struct spa_meta_videotransform {
+	uint32_t transform;		/**< orientation transformation that was applied to the buffer */
+};
+
 /**
  * \}
  */
diff --git a/test/test-spa-buffer.c b/test/test-spa-buffer.c
index e9f5620b0..89bfabdcb 100644
--- a/test/test-spa-buffer.c
+++ b/test/test-spa-buffer.c
@@ -47,7 +47,8 @@ PWTEST(buffer_abi_types)
 	pwtest_int_eq(SPA_META_Cursor, 5);
 	pwtest_int_eq(SPA_META_Control, 6);
 	pwtest_int_eq(SPA_META_Busy, 7);
-	pwtest_int_eq(_SPA_META_LAST, 8);
+	pwtest_int_eq(SPA_META_VideoTransform, 8);
+	pwtest_int_eq(_SPA_META_LAST, 9);
 
 	return PWTEST_PASS;
 }
@@ -64,6 +65,7 @@ PWTEST(buffer_abi_sizes)
 	pwtest_int_eq(sizeof(struct spa_meta_region), 16U);
 	pwtest_int_eq(sizeof(struct spa_meta_bitmap), 20U);
 	pwtest_int_eq(sizeof(struct spa_meta_cursor), 28U);
+	pwtest_int_eq(sizeof(struct spa_meta_videotransform), 4U);
 
 	return PWTEST_PASS;
 #else
@@ -75,6 +77,7 @@ PWTEST(buffer_abi_sizes)
 	fprintf(stderr, "%zd\n", sizeof(struct spa_meta_region));
 	fprintf(stderr, "%zd\n", sizeof(struct spa_meta_bitmap));
 	fprintf(stderr, "%zd\n", sizeof(struct spa_meta_cursor));
+	fprintf(stderr, "%zd\n", sizeof(struct spa_meta_videotransform));
 	return PWTEST_SKIP;
 #endif
 }