gst-plugins-vaapi has been updated to 1.8.1 (stable) and is now a part of gstreamer itself and is now hosted at https://gstreamer.freedesktop.org/src/gstreamer-vaapi/
gstreamer-vaapi module is now a part of mainline gstreamer project as per https://gstreamer.freedesktop.org/releases/1.8/ Thus this bump should be handled in bug 581956. *** This bug has been marked as a duplicate of bug 581956 ***