Synchronized Multistream Transport Using RIST

Metadata

Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: SMPTE Mot. Imag. J
Volume: 132, No. 1, pp. 47–53
Abstract: Many broadcast contribution applications require synchronized content decoding. In such applications, there are several video sources (typically cameras), whose content needs to be transported using encoders to an equivalent number of remote decoders. At the decoders, the playback needs to be synchronized—frames that arrive together at the encoders are required to come out together at the decoders. Typical applications are sports and worship, where multiple camera angles are generated and need to be played in lockstep. There are a few products available today in the market that provide such functionality over IP, using proprietary protocols. The Reliable Internet Stream Transport (RIST) Activity Group (AG) is completing the work on an open industry specification for providing synchronized multistream transport. This article provides a technical description of the methods in the specification, as well as some actual field performance data.
Publication Date: 2023-01-01
DOI: 10.5594/JMI.2022.3220730
ISSN: Print: 1545-0279 | Electronic: 2160-2492
Link: https://doi.org/10.5594/JMI.2022.3220730
Author(s): Ciro A. Noronha
bio
Ciro A. Noronha holds BS and MS degrees in electrical engineering from Instituto Tecnologico de Aeronautica, S ao José dos Campos, Brazil, and a PhD in electrical engineering from Stanford University, Stanford, CA. He has previously held engineering management positions at Optivision, Palo Alto, CA, SkyStream, Sunnyvale, CA, Tandberg Television, Sunnyvale, CA, and Ericsson, Sunnyvale, CA, having led the development of a number of compression and networking products. In 1999 and 2001, he had appointments as a consulting professor in the Electrical Engineering Department, Stanford University. He is currently a chief technology officer at Cobalt Digital, Champaign, IL, and the editor for the Reliable Internet Stream Transport (RIST) series of Technical Recommendations from the Video Services Forum.
Keyword(s): Contribution over the Internet, RIST, Reliable Streaming, REMI, Video Delivery
Copyright: © 2023 SMPTE

Bibliographic Reference(s)

C. A. Noronha, “A Performance Measurement Study of the Reliable Internet Stream Transport Protocol,” Proc. 2019 NAB Broadcast Eng. and Inform. Technol. Conf., Las Vegas, NV, Apr. 2019. EXTERNAL
Video Services Forum TR-06-1, “Reliable Internet Stream Transport (RIST) Protocol Specification—Simple Profile,” Jun. 2020. Accessed: Oct. 2, 2022. [Online]. Available: https://vsf.tv/down-load/technical_recommendations/VSF_TR-06-1_2020_06_25.pdfmeasurement is the sync delay, namely the instantaneous difference between the current NTP time and the NTP timestamp in the SR packet, at the time of the SR packet reception. In this case, most of the delay is inside the encoder. The results presented above are for nongenlocked decoders. They will play in synchronization, but the video time base will be that of the encoders, recovered by the standard MPEG clock recovery. In many cases, EXTERNAL
IETF RFC 3550 [Active*]
IETF RFC 5905 [Active*]

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Ciro A. Noronha; Synchronized Multistream Transport Using RIST, SMPTE Motion Imaging Journal ( Volume: 132, Issue: 1, 2023); SMPTE, 2023. Available at https://doi.org/10.5594/JMI.2022.3220730

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Ciro A. Noronha; Synchronized Multistream Transport Using RIST, SMPTE Motion Imaging Journal ( Volume: 132, Issue: 1, 2023); SMPTE, 2023. Available at https://doi.org/10.5594/JMI.2022.3220730

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Ciro A. Noronha; Synchronized Multistream Transport Using RIST, SMPTE Motion Imaging Journal ( Volume: 132, Issue: 1, 2023); SMPTE, 2023. Available at https://doi.org/10.5594/JMI.2022.3220730

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<span class="citation">Ciro A. Noronha; <cite>Synchronized Multistream Transport Using RIST</cite>, SMPTE Motion Imaging Journal ( Volume: 132, Issue: 1, 2023); SMPTE, 2023. Available at <a href="https://doi.org/10.5594/JMI.2022.3220730" target="_blank" rel="noopener">https://doi.org/10.5594/JMI.2022.3220730</a></span>

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Ciro A. Noronha; Synchronized Multistream Transport Using RIST, SMPTE Motion Imaging Journal ( Volume: 132, Issue: 1, 2023); SMPTE, 2023
doi: 10.5594/JMI.2022.3220730
url: https://doi.org/10.5594/JMI.2022.3220730

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Ciro A. Noronha; <cite id="bib-10-5594-jmi-2022-3220730">Synchronized Multistream Transport Using RIST</cite>, SMPTE Motion Imaging Journal ( Volume: 132, Issue: 1, 2023); SMPTE, 2023
<span class="doi">10.5594/JMI.2022.3220730</span>
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