Design, implementation, and evaluation of active video-quality adjustment method for heterogeneous video multicast

摘要

By introducing video-quality adaptation mechanisms into intermediate network equipments using active network technologies, we can provide users with video distribution services taking into account client-to-client heterogeneity in terms of available bandwidth, performance of client systems, and user's preferences about video quality. In this paper, we designed and implemented an active video-quality adjustment node on a network processor-based network equipment. The active video-quality adjustment node can adapt the video rate to the requested level on a packet-by-packet basis. The target rate is specified in an ANEP header of a video packet. We conducted experiments and verified the practicality of the video-quality adjustment within a network.