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[Hls-interest] Questions about section 8.11 (Low-Latency Playlist)

"Weil, Nicolas" <nicoweil@elemental.com> Fri, 01 May 2020 18:53 UTC

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From: "Weil, Nicolas" <nicoweil@elemental.com>
To: "hls-interest@ietf.org" <hls-interest@ietf.org>
Thread-Topic: Questions about section 8.11 (Low-Latency Playlist)
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Date: Fri, 01 May 2020 18:53:09 +0000
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Subject: [Hls-interest] Questions about section 8.11 (Low-Latency Playlist)
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Hi,

Section 8.11 shows only an example of discrete part addressing scheme, while the preliminary LL-HLS specification was also including an example of byterange addressing scheme. Will such an example be added in an upcoming RFC version, or should we assume that Apple players finally won't support byterange addressing for parts?

The example shows 2 seconds EXT-X-PARTS with only the first part being INDEPENDENT, whereas the reference stream https://ll-hls-test.apple.com/cmaf/master.m3u8 shows 1 second parts, all INDEPENDENT. Will there be an update of the HLS Authoring Specification for Apple Devices page with a specific recommendation for the EXT-PARTS settings, or should we assume that the reference stream settings is the actual recommendation and that the example in the RFC is only a theoretical example?

Thanks,
Nicolas

----------------
Nicolas Weil | Senior Product Manager - Media Services
AWS Elemental

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