Projects per year
Abstract
Variable Bitrate (VBR) video encoding can provide much high quality-To-bits ratio compared to the widely adopted Constant Bitrate (CBR) encoding, and thus receives significant attentions by content providers in recent years. However, it is challenging to design efficient adaptive bitrate algorithms for VBR-encoded videos due to the sharply fluctuating chunk size and the resulting bitrate burstiness. In this paper, we propose a neural adaptive streaming framework called Vibra for VBR-encoded videos, which can well accommodate the high fluctuation of video chunk sizes and improve the quality-of-experience (QoE) of end users significantly. Our framework takes the characteristics of VBR-encoded videos into account, and adopts the technique of deep reinforcement learning to train a model for bitrate adaptation. We also conduct extensive trace-driven experiments, and the results show that Vibra outperforms the state-of-The-Art ABR algorithms with an improvement of 8.17%-29.21% in terms of the average QoE.
Original language | English |
---|---|
Title of host publication | NOSSDAV 2021 - Proceedings of the 2021 Workshop on Network and Operating System Support for Digital Audio and Video, Part of MMSys 2021 |
Place of Publication | New York, NY |
Publisher | Association for Computing Machinery, Inc |
Pages | 2-8 |
Number of pages | 7 |
ISBN (Electronic) | 9781450384353 |
DOIs | |
Publication status | Published - 2021 |
Event | 31st ACM Workshop on Network and Operating Systems Support for Digital Audio and Video, NOSSDAV 2021 - Virtual, Online, Turkey Duration: 28 Sept 2021 → 1 Oct 2021 |
Conference
Conference | 31st ACM Workshop on Network and Operating Systems Support for Digital Audio and Video, NOSSDAV 2021 |
---|---|
Country/Territory | Turkey |
City | Virtual, Online |
Period | 28/09/21 → 1/10/21 |
Keywords
- adaptive bitrate
- reinforcement learning
- VBR-encoded video
- video streaming
Fingerprint
Dive into the research topics of 'Vibra: neural adaptive streaming of VBR-encoded videos'. Together they form a unique fingerprint.Projects
- 1 Finished
-
Building Intelligence into Online Video Services by Learning User Interests
29/06/18 → 28/06/21
Project: Research