Higher quality live streaming under lower uplink bandwidth

Ying Chen, Qing Li, Aoyang Zhang, Longhao Zou, Yong Jiang*, Junlin Li, Zhenhui Yuan

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


With the growing popularity of live streaming, high video quality and low latency with limited uplink bandwidth have become a significant challenge. In this study, we propose Live Super-Resolution Based Video Coding (LiveSRVC), a novel video uploading framework that improves the quality of live streaming with low latency under limited uplink bandwidth. We design a new super-resolution-based key frame coding module to improve the coding compression efficiency. LiveSRVC dynamically selects the bitrate and the compression ratio of key frames, mitigating the influence of uplink bandwidth capacity on live streaming quality. Trace-driven emulations verify that LiveSRVC can provide the same quality while reducing up to 50% of the required bandwidth compared to the original encoding method (H.264). LiveSRVC consumes at least 10X less GPU occupation time compared to the method of reconstructing all frames with super-resolution.
Original languageEnglish
Title of host publicationNOSSDAV '21
Subtitle of host publicationProceedings of the 31st ACM Workshop on Network and Operating Systems Support for Digital Audio and Video
EditorsAndra Lutu, Gwendal Simon, Mylene C. Q. Farias
Place of PublicationNew York
Number of pages8
ISBN (Print)9781450384353
Publication statusPublished - 28 Sept 2021
EventMMSys '21: ACM Multimedia Systems Conference: Bridging Deep Media and Communications - Istanbul, Turkey
Duration: 28 Sept 20211 Oct 2021

Publication series

NameProceedings of the 31st ACM Workshop on Network and Operating Systems Support for Digital Audio and Video


ConferenceMMSys '21: ACM Multimedia Systems Conference
Internet address


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