What is it about?
Estimating the resolution of the video viewed by users can help ISPs better understand the managed network and thus provide a basis for optimizing network management strategies. We propose a method to identify the resolution of DASH videos transmitted using the HTTP/2 protocol based on network traffic analysis.
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Why is it important?
We proposed a method called H2CI to monitor resolution for adaptive encrypted video traffic under HTTP/2. We consider the size of the mixed data for identification. Specifically, H2CI consists of a length restoration method to extract restored fingerprints, and a fingerprint-matching method for fine-grained resolution identification. The experimental results show that H2CI can achieve more than 98\% accuracy for fine-grained resolution identification. Our method can be effectively applied to infer the adaptation behavior of encrypted video streaming and monitor the QoE of video services under HTTP/2.
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This page is a summary of: Resolution Identification of Encrypted Video Streaming Based on HTTP/2 Features, ACM Transactions on Multimedia Computing Communications and Applications, February 2023, ACM (Association for Computing Machinery),
DOI: 10.1145/3551891.
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