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All posts by js

Below are all of js's postings, with the most recent are at the bottom of the page.

J
Film 4 +1
Sunday 8 December 2019 11:05PM

StevensOnln1: Like a youtube live stream that has rewind enabled? Wouldn't that require personal streams?

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FR
J
Film 4 +1
Monday 9 December 2019 8:44PM

StevensOnln1: Well, if that's the case, it's incredibly inefficient, costly, and ultimately, unworkable.

With their moans and groans about how few billions we pay them to provide television, how can it be justified?


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GB
J
Film 4 +1
Monday 9 December 2019 11:37PM

StevensOnln1: Well, perhaps you can enlighten us on how it's technically possible to deliver millions of individual streams - which is the question I asked in the first place.

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US
J
Film 4 +1
Tuesday 10 December 2019 4:20AM

Chris.SE: Thanks, I'll take a look later with a VPN and Tor: If you sup with the Devil use a long spoon.

Meanwhile:

Unicast
In computer networking, unicast refers to a one-to-one transmission from one point in the network to another point; that is, one sender and one receiver, each identified by a network address. More at "Wikipedia"


Multicast:
In computer networking, multicast is group communication where data transmission is addressed to a group of destination computers simultaneously. Multicast can be one-to-many or many-to-many distribution ... More at "Wikipedia"

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US
J
Film 4 +1
Wednesday 11 December 2019 3:50AM

Chris.SE: Thanks again. So, given that an iplayer stream is 5Mbps, we have 5Gbps per 1000 and 5Tbps per million - the engines won't stand it captain! Well, maybe a million, but 20 million?

Searching for "BBC multicast" brought me to an interesting page:

"Multicast streaming

By combining multicast distribution to edge caches with unicast distribution downstream we are also able to support the large installed base of standards-based unicast media players. And using this hybrid model we can even support product features such as "live restart" in a scalable manner."

https://www.bbc.co.uk/rd/projects/dynamic-adaptive-streaming-ip-multicast-dasm

Presumably "live restart" is what we've been discussing. I'm not sure what "in a scalable manner" means.

An early BBC attempt at using Multicast "a smarter way of serving large numbers of people" is here:

http://www.bbc.co.uk/multicast/radio/index.shtml





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