On Mon, 8 Mar 2004, E.Chalaron wrote:
> 2.14 fps with
Thanks for the info.
That's a little slow - but only _slightly_ below what I'd expect for a
~900MHz P3. I think I get somewhere around 1.5 to 2 on a dual
800MHz P3 - been a while since I've encoded on that machine ;)
> yuvdenoise -b x,y,L,H -f | mpeg2enc -q 6 -K kvcd -4 2 -2 1 -M 2
> Machine is a dual 933 Mhz Intel.
yuvdenoise is completely taking over one of the cpus (yuvdenoise is
as cpu intense as mpeg2enc if not more so).
The other thing that may be introducing a little bit of slowdown is the
lack of a buffering stage just before the encoder.
Search for 'bfr' (in fact a new version (1.6) was just released in
the last few days). Then place " | bfr -b 10m |" before mpeg2enc.
That can help speed things up by not having the encoding wait as long
for input.
> I keep the default options..... so -I 1 I guess. Anyway, I turned it on and
> it seems to be a little better, hardly... 10 %
> Already here.... Ok this machine is not a top one but I recall it being
> faster with a rpm version.......
Memory can be a tricky thing. It's a little like reminiscing about
old times - "gee, the good old days were a lot better ..." ;)
As a test one thing that could be tried is to not run yuvdenoise.
... | bfr -b 10m | mpeg2enc ...
That will give the max encoding rate to be expected from the machine .
Then try it with yuvdenoise and compare.
It wasn't available in time for the release but there is a new filter
that might be worth looking into - "y4mspatialfilter". Milder than
yuvdenoise (in fact the two can be used together but that is really
getting into 4 cpu territory ;)) but perhaps sufficient for your needs.
Cheers,
Steven Schultz
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