A Performance Measurement Study of Open Internet Contribution Protocols

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Publisher: SMPTE — Pasadena, CA
Doc Type: Conference Paper
Content Type: Original Research
Volume: 00, pp. 1–15
Abstract: Using the public Internet for compressed, contribution-quality, real-time video transport has become commonplace for news, sports, and other real-time applications. Transport protocols are required to deal with the jitter and packet loss that can occur when using the Internet. Some transport protocols are proprietary and closed, and no public information exists about them. Other protocols have open specifications and offer open-source implementations. This paper presents a measured comparison between two open Internet transport protocols: The Reliable Internet Stream Transport (RIST) and the Secure Reliable Transport (SRT). We used a network emulator to simulate impairments such as jitter, packet-reordering, and loss, and compared the protocols based on objective and subjective measures. As a reference, we also tested packet recovery using SMPTE ST 2022–1 FEC, which was used in the early days for Internet contribution before better protocols became available. The results show that both RIST and SRT perform well under low packet loss scenarios, but RIST clearly outperforms SRT under challenging network conditions.
Publication Date: 2025-10-13
ISBN: Electronic: 978-1-61482-966-9
Author(s): Ciro A. Noronha
Adi Rozenberg
Wes Simpson
Keyword(s): Contribution over the Internet, RIST, SRT, Protocol Performance Measurement, Network Emulation
Copyright: © 2025 SMPTE

Bibliographic Reference(s)

Noronha, C., and Noronha, J., “A Study of Protocols for Low-Latency Video Transport over the Internet”, Proceedings of the 2018 NAB Broadcast Engineering and Information Technology Conference, April 2018. EXTERNAL
Noronha, C., “A Performance Measurement Study of the Reliable Internet Stream Transport Protocol”, Proceedings of the 2019 NAB Broadcast Engineering and Information Technology Conference, April 2019. EXTERNAL
Internet Engineering Task Force (IETF), Internet Draft (expired), “UDT: UDP-based Data Transfer Protocol”, Available: https://datatracker.ietf.org/doc/html/draft-gg-udt-03 EXTERNAL
Video Services Forum (VSF), TR-06–1:2020, “Reliable Internet Stream Transport-Simple Profile”, June 2020, Available: https://static.vsf.tv/download/technical_recommendations/VSF_TR-06-12020_06_25.pdf EXTERNAL
Video Services Forum (VSF), TR-06–2:2024, “Reliable Internet Stream Transport - Main Profile”, June 2024, Available: https://static.vsf.tv/download/technical_recommendations/VSF_TR-06-22024_06_12.pdf EXTERNAL
Video Services Forum (VSF), TR-06–4 Part 1, “RIST Source Adaptation”, November 2022, Available: https://static.vsf.tv/download/technical_recommendations/VSF_TR-06-4-Part-12022-11-01.pdf EXTERNAL
IETF RFC 3550 [Active*]
SMPTE ST 2022-1:2007 [Active]

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Ciro A. Noronha, Adi Rozenberg, and Wes Simpson; A Performance Measurement Study of Open Internet Contribution Protocols, MTS 2025, Article 31 (pp. 1 to 15); SMPTE, 2025, ISBN: 978-1-61482-966-9

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Ciro A. Noronha, Adi Rozenberg, and Wes Simpson; A Performance Measurement Study of Open Internet Contribution Protocols, MTS 2025, Article 31 (pp. 1 to 15); SMPTE, 2025, ISBN: 978-1-61482-966-9

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Ciro A. Noronha, Adi Rozenberg, and Wes Simpson; A Performance Measurement Study of Open Internet Contribution Protocols, MTS 2025, Article 31 (pp. 1 to 15); SMPTE, 2025, ISBN: 978-1-61482-966-9

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<span class="citation">Ciro A. Noronha, Adi Rozenberg, and Wes Simpson; <cite>A Performance Measurement Study of Open Internet Contribution Protocols</cite>, MTS 2025, Article 31 (pp. 1 to 15); SMPTE, 2025, ISBN: 978-1-61482-966-9</span>

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Ciro A. Noronha, Adi Rozenberg, and Wes Simpson; A Performance Measurement Study of Open Internet Contribution Protocols, MTS 2025, Article 31 (pp. 1 to 15); SMPTE, 2025, ISBN: 978-1-61482-966-9

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Ciro A. Noronha, Adi Rozenberg, and Wes Simpson; <cite id="bib-978-1-61482-966-9-31">A Performance Measurement Study of Open Internet Contribution Protocols</cite>, MTS 2025, Article 31 (pp. 1 to 15); SMPTE, 2025, ISBN: 978-1-61482-966-9
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