Video Tester -- A multiple-metric framework for video quality assessment over IP networks

摘要

This paper presents an extensible and reusable framework which addresses theproblem of video quality assessment over IP networks. The proposed tool(referred to as Video-Tester) supports raw uncompressed video encoding anddecoding. It also includes different video over IP transmission methods (i.e.:RTP over UDP unicast and multicast, as well as RTP over TCP). In addition, itis furnished with a rich set of offline analysis capabilities. Video-Testeranalysis includes QoS and bitstream parameters estimation (i.e.: bandwidth,packet inter-arrival time, jitter and loss rate, as well as GOP size andI-frame loss rate). Our design facilitates the integration of virtually anyexisting video quality metric thanks to the adopted Python-based modularapproach. Video-Tester currently provides PSNR, SSIM, ITU-T G.1070 videoquality metric, DIV and PSNR-based MOS estimations. In order to promote its useand extension, Video-Tester is open and publicly available.