Quality of service (QoS)-based audio and video quality of experience evaluation platform and evaluation method

Abstract

The invention relates to a quality of service (QoS)-based audio and video quality of experience evaluation platform and a QoS-based audio and video quality of experience evaluation method. The method comprises that: an audio and video coding module codes a multimedia file into an audio and video source file in a given format; an audio and video transmission module encapsulates the audio and videosource file into a data packet, and transmits the data packet to a network; a network simulation module simulates the non-destruction or destruction of an actual network environment by the setting ofnetwork parameters to obtain a non-destructive or destructive network environment; an audio and video receiving module decapsulates the data packet on the network and dumps decapsulated data into a reference audio and video file in the non-destructive network environment, and receives the destructive data packet on the network, decapsulates the received data packet and dumps the decapsulated datainto a test audio and video file in the destructive network environment; an audio and video decoding module separates video tracks and audio tracks in the reference audio and video file and the test audio and video file, and decodes the video tracks and the audio tracks into a video format and an audio format required by evaluation respectively; and finally an audio and video quality evaluation module evaluates video files and audio files respectively.

Description

technical field [0001] The invention relates to a video and audio experience quality evaluation technology, in particular to a QoS-based video and audio experience quality evaluation platform and evaluation method. Background technique [0002] With the development of the Internet, IPTV, as a new service, is constantly penetrating into more and more families. IPTV utilizes the infrastructure of the broadband cable television network, uses the home TV as the main terminal electrical appliance, and provides a variety of digital media services including TV programs through the Internet protocol. IPTV has very flexible interactive characteristics, because it has the inherent advantage of symmetrical interaction of the Internet, its programs can be released in various ways such as broadcast, multicast or unicast in the network. It can flexibly implement various functions such as electronic menu, program reservation, real-time fast forward, fast rewind, terminal account and billi...

AI Technical Summary

Problems solved by technology

[0004] IPTV mixes video tracks and audio tracks during the transmission process, and so far, most of the research is only on pure video QoE and audio QoE. In addition, the QoS parameters of the real network environment are uncontrollable, which is not conducive to experiments. Therefore, it is necessary to propose a QoS-based video and audio quality of experience (QoE) evaluation platform and evaluation method that is not dependent on the real network and has become an urgent problem to be overcome in the industry. topic

Images