Browsing by Author "Pham, S."

Now showing 1 - 4 of 4

Open Access
Common media server data (CMSD) - update on implementations and validation of key use cases
(ACM, 2023-06-16) Pham, S.; Law, W.; Beğen, Ali Cengiz; Silhavy, D.; Berthelot, B.; Arbanowski, S.; Steglich, S.; Computer Science; BEĞEN, Ali Cengiz
The CTA-5006 (Common Media Server Data, CMSD) specification establishes a uniform method for media servers to exchange data with each media object response. The aim is to enhance distribution efficiency, performance, and ultimately, the user experience. We provide an overview of CMSD implementations and focus on integrating CMSD into the dash.js reference player. Three use cases are evaluated to demonstrate the advantages of CMSD, including leveraging edge server throughput estimates to improve initial bitrate selection and low-latency live streaming, prefetching manifests and segments to improve startup delay, and allowing an edge server to suggest a playback bitrate to improve the collective experience. The outcomes from the initial implementations confirm the benefits of using CMSD.
Open Access
Dynamic CDN switching - dash-if content steering in dash.js
(ACM, 2023-06-16) Silhavy, D.; Law, W.; Pham, S.; Beğen, Ali Cengiz; Giladi, A.; Balk, A.; Computer Science; BEĞEN, Ali Cengiz
This paper overviews the content steering specification currently being developed in DASH Industry Forum and first implemented in the dash.js reference player.
Metadata only
Road to salvation: Streaming clients and content delivery networks working together
(IEEE, 2021-11-01) Beğen, Ali Cengiz; Bentaleb, A.; Silhavy, D.; Pham, S.; Zimmermann, R.; Law, W.; Computer Science; BEĞEN, Ali Cengiz
Streaming media has truly become one of the most popular applications on the Internet. Viewers are spoiled for choice, and content providers compete to provide the best viewer experience. Traditionally, it has been challenging for content providers to get deep insights into the performance of their large-scale streaming operations. A new standard, Common Media Client Data (CMCD), aims to fundamentally change this. After providing an overview of this standard and describing some possible application scenarios, we present an open source sample implementation for readers to explore this topic further in their own practical environments.
Open Access
Take the red pill for H3 and see how deep the rabbit hole goes
(ACM, 2022-03-17) Nguyen, M.; Timmerer, C.; Pham, S.; Silhavy, D.; Beğen, Ali Cengiz; Computer Science; BEĞEN, Ali Cengiz
With the introduction of HTTP/3 (H3) and QUIC at its core, there is an expectation of significant improvements in Web-based secure object delivery. As HTTP is a central protocol to the current adaptive streaming methods in all major streaming services, an important question is what H3 will bring to the table for such services. To answer this question, we present the new features of H3 and QUIC, and compare them to those of H/1.1/2 and TCP. We also share the latest research findings in this domain.