Hello all
Just a quick question : using mjpegtools through ffmpeg piping.
are they (or not) multi threaded ?
ffmpeg -threads 2 -y -i - -f yuv4mpegpipe - | \
yuvdenoise -t 2,8,8 -m 2,8,8 |
y4munsharp |\
ffmpeg -y -threads 2 -i - -b 22k -vcodec dnxhd -threads 2 $fichier
On (for say) a dual core
Hello Bernhard
Thanks for the reply.
> That is a normal behaviour both programms use only one CPU/Core and are
> not multithreaded.
>
Ok so if I understand properly does it mean that y4munsharp will get 1
core and the yuvdenoise the oher one ? or both on 1 core that will
alternate from time to
Thanks Mark
> No - The heaviest hitting process is causing the bottle neck. Look at
> optimising this process to better utilise your machine, multithreading
> may help. There is no point optimising the low %CPU processes if
> this is the case.
>
This is the case.
It seems to be yuvden
> Are both your CPU cores loaded?
>
Well one is 20 % the other 65 % (or so) and then swap from time to time.
cheers
E
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Hello Bernhard
I will double check, I must say for convenience I am using a Packman /
Suse rpm.
Therefore they may use a release version rather than a CVS one.
I am probably missing on that one.
Hopefully yes, because it will mean that my question was already
obsolete when I asked it :-[
Cheer
Hi Steven
Can y4mdenoise accept a sequence of TIFF RGB files ? or just YUV colorspace?
To my (limited) knowledge a temporal full RGB denoiser does not exist
for Linux ... Or am I wrong :-) ?
Cheers
E
On 09/23/2011 12:00 PM, Steven Boswell II wrote:
y4mdenoise does that sort of threading intern
Hi Steven
Thanks for that. I will have a look, (already printed), but not knowing
anything about writing code, it's unlikely I will achieve the goal.
Cheers
E
On 09/23/2011 01:42 PM, Steven Boswell II wrote:
y4mdenoise's internal engine is written to be VERY flexible. One
could easily modify
Cine scan films such as 8, 9.5, super 8 , 16 mm etc ...
Either in 8 or 16 bits.
Cheers
E
On 09/23/2011 02:07 PM, Mark Heath wrote:
>
> What format is using RGB?
>
> Mark
>
--
All of the data generated in your IT infrastr
The files are in a quicktime container as raw RGB data from cinelerra.
But ... I suppose I can always denoise before rendering in X264 which
will be in YUV anyway.
>
> Sorry I mean, what file format (or library) would you be reading this
> in as?
>
> yuv4mpeg is in yuv format. I'm not aware of
Hi there
I am trying to use y4mtoqt to convert some pnm files to a 444 qt video.
I cant get where the error is coming from
Any help appreciated
Thanks a lot
Edouard
script
#!/bin/bash
reel_name=$1
(find . -name \*.pnm | sort | xargs cat) | \
ppmtoy4m -F 17:1 -A 1:1 -I p -S 444 -v 2|\
y4mtoqt -v3
Thanks a lot Steven.
I have actually remove the -X 308 it does not work either.
just y4mtoqt -o file.mov
Just a syntax thing it seems, but the warning is a bit confusing
Cheers
E
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Ok thanks for the precision and the time for the reply. :)
Cheers
E
> What -X does is enable the 10bit variant. By default 4:4:4 uses
> the 8bit 'v308' codec. If you want the 'v410' codec for 10bit
> 4:4:4 then you use a simple '-X'.
>
--
Hi there
Do the MJPEGtools support more than 8 bits/channel ?
Thanks
E
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Thanks Steven
My point is actually to work in 10 or more bits from frame acquired
from a machine vision cam.
Trying to sort out what I can really do before investing in bits I
could not use.
Cheers
E
Steven M. Schultz wrote:
On Tue, 29 Jul 2008, E Chalaron wrote:
Do the
16 bits, I still need to dig a bit there
although the developers are starting a new project from scratch.
Avoiding Mjpegtools is not an option I'd like to end up with, it is
fast and reliable for what I need to do.
Gmerlin is not for me, I just don't get it.
Cheers
E
Burkhard Plaum wrote:
Hi there
I was wondering what was the status of y4mhist these days ?
Did anybody try to link a vloopback / y4mhist /gnuplot triplet to
display in reel time (possible ?) the histogram ?
Thanks
E.
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ltime histogram (among other things) suitable for
displaying with a yuv player of some sort.
http://silicontrip.net/~mark/lavtools/index.php#yuvdiag
Let me know if this is what you are after.
Mark
On 17/09/2008, at 7:19 AM, E Chalaron wrote:
Hi there
I was wondering what was the status of y4
Hi there
I am currently using yuyvtoy4m to convert frames from a 8 bits firewire
machine
vision camera to quicktime files.
Is there any chance that in the future I can pipe some 10/12 bits data ?
I already asked the question about a year ago, but not sure if any
further devel. has been made ?
Tha
Hello Bernhard
Thanks for your mail.
Steven Shcultz told me as well that it woud take major work.
I was just making sure I did not miss anything ;-)
Cheers
E
Bernhard Praschinger wrote:
Hallo
I am currently using yuyvtoy4m to convert frames from a 8 bits firewire
machine
vision
I have been experiencing crashes with y4mstabiliser for a while now.
even with a proper pipe and mjpegtools.
Cheers
E
Hervé wrote:
(update)
hello, I'm not developper but it could not be a buffer concern? (it's
just an idea)
uname -a
Darwin MacMini-2.local 9.7.0 Darwin Kernel Version 9.7.
Hi there
Just recompiled from CVS. Y4mtoqt is not buidling, all other y4mtools
have a .o and exe file but his one.
If someone has a quick fix please; kinda urgent here.
System is open SUSE11 X86_64. Packman repo is missing out on this one as
well it seems.
Thanks a lot
E
--
Hello Steven
The usual stuff ... should have thought about the devel package. Will
have a closer look.
> Rebuilding/updating while something urgent is happening is not a good
> idea.
>
I know I have been grumpy all day thanks to my stupidity.
cheers
E
-
Hi all
I am sorry for what seems to be a recurent question but can not get the
qtoy4m to compile.
I remember this to be solved by adding the devel libs of libquicktime
but this time it does not seem to work.
Platform is opensuse 11.
In the same kind of issue I cant eithe compile (or use the binari
hi all
Thanks for your replies
Went for the obvious : libquicktime...
compiled mjpegtools from source and did a check on
edou...@gascogne:~/mjpeg_play> ./configure > config.txt
edou...@gascogne:~/mjpeg_play> more config.txt | grep -i quick
checking for LIBQUICKTIME... no
configure: - Quickt
nd time etc...
Not that many options really apart from qttoy4m / yuvdenoise. So thanks
again for all the work done on mjpegtools.
cheers
E
Steven M. Schultz wrote:
On Thu, 8 Oct 2009, E Chalaron wrote:
> Ha well let's install libquicktime-devel then ...
> No such luck, Yast is pre
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