Fix #838
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/949>
/**
* gst_video_meta_get_plane_size:
* @meta: a #GstVideoMeta
- * @plane_size: (out): array used to store the plane sizes
+ * @plane_size: (out caller-allocates) (array fixed-size=4): array used to store the plane sizes
*
* Compute the size, in bytes, of each video plane described in @meta including
* any padding and alignment constraint defined in @meta->alignment.
/**
* gst_video_meta_get_plane_height:
* @meta: a #GstVideoMeta
- * @plane_height: (out): array used to store the plane height
+ * @plane_height: (out caller-allocates) (array fixed-size=4): array used to store the plane height
*
* Compute the padded height of each plane from @meta (padded size
* divided by stride).