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ARTEMIS: Adaptive bitrate ladder optimization for live video streaming

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URI: https://hdl.handle.net/20.500.12761/1760
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Author(s)
Tashtarian, Farzad; Bentaleb, Abdelhak; Amirpour, Hadi; Gorinsky, Sergey; Jiang, Junchen; Hellwagner, Hermann; Timmerer, Christian
Date
2024-04-16
Abstract
Live streaming of segmented videos over the Hypertext Transfer Protocol (HTTP) is increasingly popular and serves heterogeneous clients by offering each segment in multiple representations. A bitrate ladder expresses this choice as a list of bitrate-resolution pairs. Whereas existing solutions for HTTP-based live streaming use a static bitrate ladder, the fixed ladders struggle to appropriately accommodate the dynamics in the video content and network-conditioned client capabilities. This paper proposes ARTEMIS as a practical scalable alternative that dynamically configures the bitrate ladder depending on the content complexity, network conditions, and clients' statistics. ARTEMIS seamlessly integrates with the end-to-end streaming pipeline and operates transparently to video encoders and clients. We develop a cloud-based implementation of ARTEMIS and conduct extensive real-world and trace-driven experiments. The experimental comparison vs. existing prominent bitrate ladders demonstrates that live streaming with ARTEMIS outperforms all baseline solutions, reduces encoding computation by 25%, end-to-end latency by 18%, and increases the quality of experience by 11%.
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Files
Main article (4.278Mb)
Identifiers
URI: https://hdl.handle.net/20.500.12761/1760
Metadata
Show full item record

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