Re: [media-and-entertainment] Use of WebRTC for media content distribution

Based on my experience with ATSC 3.0, I have the following concerns:

a) QUIC is not IP multicast-compatible (yet).  Although there are early stage proposals such as [1], they have  been shown to significantly degrade IP-multicast performance versus the standardized ATSC transport protocol ROUTE (see slide 5 of presentation in [2]).

b) QUIC does not have any support for FEC.  This is problematic for the ATSC file repair solution.

Note that ATSC 3.0 is already compatible with W3C specifications such as MSE and EME, so adoption of QUIC would not be of benefit from that perspective.

I would say overall there could be promise for WebRTC-QUIC for certain video distribution scenarios for live media, but the benefits are not clear for OTA broadcast of live media.

[1] https://datatracker.ietf.org/doc/draft-pardue-quic-http-mcast/
[2] https://mailarchive.ietf.org/arch/msg/ggie/2iCARGOZ7-5TDsDEFiGo2zu2StI

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Received on Tuesday, 20 November 2018 16:26:33 UTC