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Re: [AG-TECH] Computational requirements for the future
On Wed, 14 Jun 2006, Claus Endres wrote:
This is with Fedora Core 5 i386, which has problems with the nvidia
driver and has to use the X.org nv one. Under FC5 x86_64, the nvidia
driver works, and improves performance by about 5% per decode stream.
Out of interest what's the problem you have with the nvidia driver?
H.264 has prohibitively high compute requirements, which prevent it
from being used at frame rates above around 5 fps (40 % CPU per
encoder). We use it for personal nodes at low bandwidth for
document cameras at 1 fps, and it works brilliantly for that.
Decode CPU requirements are about the same as for MPEG4.
I couldn't believe the cost of encoding H264. Pretty high indeed.
HDTV is not worth it as you cannot find a projector bright enough
for video conferencing in a non-darkened room for under around
$AU 400,000.
Surely something that plays 720p60 is cheap is chips though, you don't need to
go all the way up to 1080p.
jh
--
"Nostaligia's not what it used to be." -- Anon.