Re: [RE] Video question
Dennis,
I have always been a believer that any bounded bandwidth
number is never enough and will always be a limit for
someone. This is an example of why 1Gb/s does not
always correspond to a vastly overprovisioned links,
and thus even 1Gb has the need for RE subscription
(and possibly pacing) services.
For your specific example, 10 Gb Ethernet offers relief
for those folks that would be doing uncompressed video
distribution.
While it will take a while, RE with 100Mb/1Gb can solve
many other problems in the near future.
DVJ
>> -----Original Message-----
>> From: owner-stds-802-3-re@ieee.org
>> [mailto:owner-stds-802-3-re@ieee.org]On Behalf Of Gross, Kevin
>> Sent: Thursday, June 30, 2005 4:07 PM
>> To: STDS-802-3-RE@listserv.ieee.org
>> Subject: [RE] Video question
>>
>>
>> Video distribution has been used here as an example of a high-bandwidth
>> residential application. I can't remember if anyone got specific
>> about what
>> delivery format would be used. A raw 24-bit RGB format such as
>> provided by
>> DVI or HDMI would be a contender. I've just looked up some uncompressed
>> video data rates:
>>
>> NTSC: ~200Mbit
>> 720i HDTV: 0.8Gbit
>> 720p HDTV: 1.4Gbit <- US HDTV broadcast (de facto) standard
>> 1080i HDTV: 1.9Gbit
>>
>> Seems a forward-looking medium for transmission of uncompressed video
>> streams must provide more than one gigabit of bandwidth. Am I missing
>> something? What compressed video format(s) would be applicable to
>> residential video distribution?
>>
>>
>> Kevin Gross, Director, Network Technology
>> Direct: 303-245-5503, Main: 303-245-5500, Fax: 303-245-5576
>> Commercial Audio division, Cirrus Logic, Inc.
>> 2500 55th Street, Suite 210, Boulder, CO 80301
>> kevin.gross@cirrus.com, www.cirrus.com <www.peakaudio.com>