[Hls-interest] Feedback requested on WebTransport usage with HLS
"Law, Will" <wilaw@akamai.com> Fri, 11 December 2020 19:50 UTC
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From: "Law, Will" <wilaw@akamai.com>
To: "hls-interest@ietf.org" <hls-interest@ietf.org>
Thread-Topic: Feedback requested on WebTransport usage with HLS
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Date: Fri, 11 Dec 2020 19:50:48 +0000
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Subject: [Hls-interest] Feedback requested on WebTransport usage with HLS
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WebTransport is a standard being developed by the IETF [1], with the browser API being developed at W3C [2] with a latest draft [3] available. Within the WebTransport framework, two protocols are being considered - QUICTransport and HTTPTtransport. Both are built on top of QUIC as shown in the draft network stack diagram below. Both allow for the establishment of bi-directional and uni-directional reliable streams, as well as the unreliable transmission of datagrams. A working demo under Chrome v88+ (after you enable Experimental Web platform features) is available at https://webrtc.internaut.com/quic/newtrial.html. [cid:image001.png@01D6CFB3.DBE76940] The primary differences between the two transports are summarized below: HTTP3Transport * Pooled with other HTTP3 traffic * Inherits HTTP features such as load balancers, headers, firewall & proxy support * Suggested target applications – general web, chats, pub/sub++ QUICTransport * Dedicated connection between client and server. Server can optimize transport * No HTTP3 dependency * Suggested target applications – streaming video games, real-time media The W3C WebTransport WG [2] is seeking feedback from the HLS community around the following questions: 1. Is WebTransport potentially useful for HLS? 2. Is there a preference for using HTTPTransport or QUICTransport? 3. Are there missing APIs in the current draft [3] that would be necessary for HLS to leverage WebTransport under a browser user-agent? We are at the early (and hence optimal) point in which to inject these requirements and look forward to your feedback. Feedback to this thread will be collated and relayed as appropriate to either the IETF and/or W3C. [1] - https://tools.ietf.org/html/draft-ietf-webtrans-overview-01 [2] - https://www.w3.org/groups/wg/webtransport [3] - https://w3c.github.io/webtransport/ Cheers Will Co-Chair – W3C WebTransport WG
- [Hls-interest] Feedback requested on WebTransport… Law, Will
- Re: [Hls-interest] Feedback requested on WebTrans… Mark Nottingham
- Re: [Hls-interest] Feedback requested on WebTrans… Roger Pantos