An adaptive streaming aware networks node, client and method with priority marking

摘要

In adaptive streaming, video segments are available in one or more quality levels, and each video segment is delivered to the client (103) in a quality level specified in a request received from that client (103).;In order to reduce the risk for buffer underrun, an adaptive streaming aware network node (101) comprises:- session monitoring means (111) for collecting buffer fill information indicative for a buffer volume at the client (101) occupied by a video session;- priority calculation means (112) for determining a priority level for video segments of the session in function of the buffer fill information; and- video segment marking means (113) for marking video segments of the session with the priority level.