Efficiency of Dynamic GOP Length in Video Stream

Author:

Ling Zi1,Jiang Xing Jun1,Liu Jian Jun1

Affiliation:

1. Hunan Radio and Television University

Abstract

Multiple description codes are designed for multiple path video streaming with channel diversities and an efficient MDC technique based on the applied spatial domain processing features. In this paper, we investigate the performance of multi-path video streaming using a multiple description coding (MDC) technique, especially the impacts of several codec variables, such as different lengths of the Group of Pictures (GOP), and the different startup times of I-frame in each independent MDC sub-streams. The overall performance of the system is evaluated by the frame dropout rate, which indicates the probability of playing back frozen frames of the reconstructed video at the receiver devices. To address dynamic channel conditions for video transmissions, we propose an adaptive coding technique by adjusting the GOP lengths according to the channel condition and combinatorial mathematics optimization in length of GOP adjustment. Different approaches, such as sub-dividing GOPs for a single stream and multiple sub-streams, and an adaptive MDC video streaming system, are examined in this paper.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Recent Advances in Rate Control: From Optimization to Implementation and Beyond;IEEE Transactions on Circuits and Systems for Video Technology;2024-01

2. GOP Adaptation Coding of H.264/SVC Based on Precise Positions of Video Cuts;KSII Transactions on Internet and Information Systems;2014-07-29

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