With the introduction of FrameBuffer objects, the metadata information related to captured frames will not be stored directly in the frame buffer object. Add a new FrameMetadata class to hold this information. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>