Exploring AV1 Encoder Potentials for Priority-Driven Wireless Multimedia Services

Evan Ballesteros, K. Ramamoorthy, Wei Wang
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Abstract

World wide internet data usage is growing at a rapid rate and one of the main reasons for this high data usage is the increasing use of media streaming services. According to Cisco, video streaming will take up 82% of the world’s internet traffic by this year, 2022. Media streaming services use a large amount of data due to videos being inherently such large files which, for streaming services, need to be transferred over the internet. For this reason, we are researching methods to impact the use of a new generation open source video encoder, AV1, with wireless communications. Though the encoder is already more efficient at compressing video files than previous encoders, our goal was to research and understand AV1 in order to customize wireless protocols that optimize its usage in streaming scenarios. In our first attempt at understanding this encoder, we went through processes of tweaking settings built into the encoder in order to find optimal video quality when compared to file size. The file size is an important metric that correlates with how much data would have to be streamed. After this we went on to investigate how we could possibly estimate the per frame quality contribution of each frame transmitted. This goal was inspired by that of previous H.264/H.265 encoders’ I, P, and B frames, which each have their own distinguishable amount of quality contribution that can be split between 3 levels: high, medium, and low. We believe that the method provided could have a good indication of quality contribution similar to that of I, P and B frames with high, medium, or low quality contribution.
探索AV1编码器在优先级驱动的无线多媒体服务中的潜力
全球互联网数据使用量正在快速增长,而这种高数据使用量的主要原因之一是越来越多地使用流媒体服务。据思科(Cisco)称,到2022年,视频流媒体将占全球互联网流量的82%。流媒体服务使用了大量的数据,因为视频本身就是如此大的文件,对于流媒体服务来说,需要通过互联网传输。出于这个原因,我们正在研究影响新一代开源视频编码器AV1无线通信使用的方法。虽然编码器在压缩视频文件方面已经比以前的编码器更有效,但我们的目标是研究和理解AV1,以便自定义无线协议,优化其在流媒体场景中的使用。在我们第一次尝试理解这个编码器时,我们经历了调整编码器内置设置的过程,以便在与文件大小相比时找到最佳的视频质量。文件大小是一个重要的度量,它与必须流式传输的数据量相关。在此之后,我们继续研究如何估计每帧传输的每帧质量贡献。这个目标的灵感来自于之前的H.264/H。265个编码器的I, P和B帧,每个帧都有自己可区分的质量贡献量,可以分为3个级别:高,中,低。我们认为,所提供的方法可以很好地指示质量贡献,类似于具有高、中、低质量贡献的I、P和B框架。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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