gst: libcamerapad: Add a method to access the role

Each pad can have a different roles. Users will have to request and configure
their pads role before moving to a higher state.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/src/gstreamer/gstlibcamerapad.cpp b/src/gstreamer/gstlibcamerapad.cpp
index ca5c8203..ed24557b 100644
--- a/src/gstreamer/gstlibcamerapad.cpp
+++ b/src/gstreamer/gstlibcamerapad.cpp
@@ -100,3 +100,11 @@ gst_libcamera_pad_class_init(GstLibcameraPadClass *klass)
 						     | G_PARAM_STATIC_STRINGS));
 	g_object_class_install_property(object_class, PROP_STREAM_ROLE, spec);
 }
+
+StreamRole
+gst_libcamera_pad_get_role(GstPad *pad)
+{
+	auto *self = GST_LIBCAMERA_PAD(pad);
+	GLibLocker lock(GST_OBJECT(self));
+	return self->role;
+}