4 files changed, 43 insertions, 0 deletions
diff --git a/gst-libs/gst/vaapi/gstvaapiwindow.c b/gst-libs/gst/vaapi/gstvaapiwindow.c
index 01514038..7fd4502f 100644
--- a/gst-libs/gst/vaapi/gstvaapiwindow.c
+++ b/gst-libs/gst/vaapi/gstvaapiwindow.c
@@ -414,6 +414,32 @@ gst_vaapi_window_get_fullscreen (GstVaapiWindow * window)
 }
 
 /**
+ * gst_vaapi_window_set_render_rectangle:
+ * @window: a #GstVaapiWindow
+ * @x: the horizontal offset of the render area inside the window
+ * @y: the vertical offset of the render area inside the window
+ * @width: the width of the render area inside the window
+ * @height: the height of the render area inside the window
+ *
+ * Set information of the render area.
+ *
+ * Since: 1.18
+ */
+void
+gst_vaapi_window_set_render_rectangle (GstVaapiWindow * window, gint x, gint y,
+    gint width, gint height)
+{
+  const GstVaapiWindowClass *klass;
+
+  g_return_if_fail (window != NULL);
+
+  klass = GST_VAAPI_WINDOW_GET_CLASS (window);
+
+  if (klass->set_render_rect)
+    klass->set_render_rect (window, x, y, width, height);
+}
+
+/**
  * gst_vaapi_window_set_fullscreen:
  * @window: a #GstVaapiWindow
  * @fullscreen: %TRUE to request window to get fullscreen
diff --git a/gst-libs/gst/vaapi/gstvaapiwindow.h b/gst-libs/gst/vaapi/gstvaapiwindow.h
index 56344396..c1628f79 100644
--- a/gst-libs/gst/vaapi/gstvaapiwindow.h
+++ b/gst-libs/gst/vaapi/gstvaapiwindow.h
@@ -85,6 +85,10 @@ gst_vaapi_window_set_height (GstVaapiWindow * window, guint height);
 void
 gst_vaapi_window_set_size (GstVaapiWindow * window, guint width, guint height);
 
+void
+gst_vaapi_window_set_render_rectangle (GstVaapiWindow * window, gint x, gint y,
+    gint width, gint height);
+
 gboolean
 gst_vaapi_window_put_surface (GstVaapiWindow * window,
     GstVaapiSurface * surface, const GstVaapiRectangle * src_rect,
diff --git a/gst-libs/gst/vaapi/gstvaapiwindow_priv.h b/gst-libs/gst/vaapi/gstvaapiwindow_priv.h
index a0b05827..168e002c 100644
--- a/gst-libs/gst/vaapi/gstvaapiwindow_priv.h
+++ b/gst-libs/gst/vaapi/gstvaapiwindow_priv.h
@@ -129,6 +129,7 @@ struct _GstVaapiWindowClass
   guintptr (*get_colormap) (GstVaapiWindow * window);
   gboolean (*unblock) (GstVaapiWindow * window);
   gboolean (*unblock_cancel) (GstVaapiWindow * window);
+  void (*set_render_rect) (GstVaapiWindow * window, gint x, gint y, gint width, gint height);
 };
 
 GstVaapiWindow *
diff --git a/gst-libs/gst/vaapi/gstvaapiwindow_wayland.c b/gst-libs/gst/vaapi/gstvaapiwindow_wayland.c
index 4cf76a15..0f596e59 100644
--- a/gst-libs/gst/vaapi/gstvaapiwindow_wayland.c
+++ b/gst-libs/gst/vaapi/gstvaapiwindow_wayland.c
@@ -531,6 +531,17 @@ gst_vaapi_window_wayland_resize (GstVaapiWindow * window,
   return TRUE;
 }
 
+void
+gst_vaapi_window_wayland_set_render_rect (GstVaapiWindow * window, gint x,
+    gint y, gint width, gint height)
+{
+  GstVaapiWindowWaylandPrivate *const priv =
+      GST_VAAPI_WINDOW_WAYLAND_GET_PRIVATE (window);
+
+  if (priv->video_subsurface)
+    wl_subsurface_set_position (priv->video_subsurface, x, y);
+}
+
 static inline gboolean
 frame_done (FrameState * frame)
 {
@@ -991,6 +1002,7 @@ gst_vaapi_window_wayland_class_init (GstVaapiWindowWaylandClass * klass)
   window_class->set_fullscreen = gst_vaapi_window_wayland_set_fullscreen;
   window_class->unblock = gst_vaapi_window_wayland_unblock;
   window_class->unblock_cancel = gst_vaapi_window_wayland_unblock_cancel;
+  window_class->set_render_rect = gst_vaapi_window_wayland_set_render_rect;
 
   signals[SIZE_CHANGED] = g_signal_new ("size-changed",
       G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL,