nanog mailing list archives

Re: Monday Night Footbal -- on Google?


From: Mark Tinka <mtinka () globaltransit net>
Date: Mon, 16 Jan 2012 00:17:55 +0800

On Thursday, January 12, 2012 12:06:42 PM Jay Ashworth 
wrote:

I'm not saying you need the whole 19mbps (though,
remember here, we are not talking about "Additional
Carriage"; we are talking about *being the only way
people can see that game* -- and my example was the
Super Bowl).. but unless MPEG algorithms have gotten
*much* better than I'm aware of, 5mb/s is probably not
enough for the Super Bowl.  And you'd really be better
off with some FEC, too, even if it costs you a couple
frames extra delay.

For broadcast networks, what we're seeing they like is that 
unlike satellite transmissions, there is more flexibility 
for them on IP (IPTv), which would let them lift compression 
rates and pack more data into a stream.

But because most of them are primarily satellite 
broadcasting houses, only starting to roll-out IPTv, they 
need to maintain parity on both transmission media.

Whatever the case, 5Mbps would be too low. At 1080i, we have 
a customer pushing HD channels at about 13Mbps a piece, give 
or take.

Mark.

Attachment: signature.asc
Description: This is a digitally signed message part.


Current thread: