CWG White Paper AJR 230215A X Compressed
Research & Development White Paper WHP 289 March 2015 Covering the Glasgow 2014 Commonwealth Games using IP Studio Alexander Rawcliffe BRITISH BROADCASTING CORPORATION White Paper WHP 289 Covering the Glasgow 2014 Commonwealth Games using IP Studio Alexander Rawcliffe Abstract BBC Research & Development’s IP Studio project is investigating the use of an IP-based infrastructure for live broadcasting, using a combination of theoretical design and experimental prototyping. During the Glasgow 2014 Commonwealth Games, IP Studio technology was used to produce a live ‘IP-end-to-end’ outside broadcast. Using network connectivity provided by Virgin Media, JANET and the BBC, live ultra-high definition video was captured from cameras in several competition venues, and delivered into a software-defined production system. Ancillary production facilities such as talkback and camera tally indicators were also implemented using the same IP network. This facilitated a highly distributed production workflow, with operational tasks being undertaken at several sites throughout the UK. Final programme output was delivered over IP using MPEG-DASH, and also broadcast from selected existing digital terrestrial television (DTT) transmitter locations using HEVC compression over DVB-T2. This paper describes the components and configuration of the IP Studio system used during the games, and explores the geographically distributed, collaborative workflows it enabled. Additional key words: Internet Protocol, Stagebox, RTP, Future Broadcast System, IP-end-to-end White Papers are distributed freely on request. Authorisation of the Chief Scientist or General Manager is required for publication. © BBC 2015. All rights reserved. Except as provided below, no part of this document may be reproduced in any material form (including photocopying or storing it in any medium by electronic means) without the prior written permission of BBC except in accordance with the provisions of the (UK) Copyright, Designs and Patents Act 1988.
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