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.


With the increasing availability of encrypted video, I hope the results of this article will help network administrators understand how users feel about the quality of their use of the network, while not violating the principle of protecting user privacy.

Hua Wu
Southeast University

Read the Original

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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