Abstract
This paper aims to present the experience, challenges, techniques and results obtained by Globosat, in partnership with Samsung Brazil, with live streaming 56 matches of the 2018 FIFA WORLD CUP in Russia for connected TVs with 4K UHD HDR and immersive audio.
Introduction
Globosat, in partnership with Samsung Brazil, live-streamed 56 matches of the 2018 FIFA World Cup in Russia for connected TVs with 4K UHD HDR and immersive audio.
The agreement between the parties involved the live streaming of 4K UHD HDR signal produced by Globosat with immersive audio mixing and another feed with only the 4K UHD SDR 180 degrees central camera signal with international audio. In addition, VOD deliveries of 4K UHD HDR with immersive audio from the 56 games and 10 minutes highlights from each game were also contracted.
The 4K UHD HDR live production at Globosat consisted of audio mixing for immersive audio and SPORTV (sports channel) talents (announcer and sports analyst), branding and commercial insertions. The opening of the live streaming occurred 15 minutes before the start of the game and closed 5 minutes after the end of the game.
The technical specifications set for live streaming signals for the app were UHD 2160p @ 60Hz, BT.2020, HDR-10 with Dolby Atmos audio. At the beginning of the tests, the initial live stream delay in the app was about 2 minutes. After performance and quality adjustments, like bit rate and chunk sizes, the delay dropped down to 18 seconds and then three transmission profiles were defined.
Regarding VOD, time to deliver the full video to the consumer was assumed to be 12 hours after the end of the match, but the average time taken to do all the operation needed was about 1 hour after the end. Already for the delivery of the 10 minutes of best moments, the initial agreed time was 3 hours after the end of the match, but this delivery was able to be done immediately after the game.
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