[Manuel Weber]

Thanks for pulling me back to the original assumption.
I read and tested it wrong, i guess.

True, PNG can do 8bit and 16bit in colour!

M

[Manuel Weber]

I guess it’s fair to give the answer myself, as far as it’s possible

There is a JPEG variant: LJPEG and JPEG-LS
Both are lossless, the LS variant is considered to be faster.

I had 14 fps to TIFF, now 110 fps to JPEG-LS
(decode is minor here)

The downside is that both seem not very widely supported in apps.

Imagemagick doesn’t know it in ffmpeg’s “jls” container.
ffmpeg wouldn’t know IM’s “DCM” container.

Cheers
Manu

[Manuel Weber]

Hello Internet, I owe you one,

Google was no friend at all, it took weeks of retries,
so I contribute to the Cow. I like the Cow.

Concerning the topic no-re-encode import into Encore, but doing it with ffmpeg instead of bare x264:

This Code is working (CBR Example):
/usr/bin/x264 --bitrate 22000 --preset veryslow --tune film --bluray-compat --fps 24 --force-cfr --bframes 3 --ref 4 --muxer raw --no-weightb --weightp 0 --b-pyramid none --vbv-bufsize 25000 --level 4.1 --profile high --keyint 24 --min-keyint 1 --open-gop --slices 4 --colorprim "bt709" --transfer "bt709" --colormatrix "bt709" --sar 1:1 -o /path/to/outputfile.264 --input-res 1920x1080 /path/to/inputfile.mov


And this is my closest working translation to ffmpeg (v2.3 linux, No Audio):
/usr/local/FFmpeg/ffmpeg -y -i "/path/to/inputfile.mov" -strict experimental -c:v libx264 -pix_fmt yuv420p -r 24 -s 1920x1080 -filter_complex "setsar=sar=1/1" -preset veryslow -tune film -profile high -x264opts "bitrate=22000:bluray-compat=1:force-cfr=1:bframes=3:ref=4:no-weightb:b-pyramid=none:vbv-bufsize=25000:level=4.1:keyint=24:min-keyint=1" -flags -cgop -sn -an -slices 4 -threads 0 -f h264 "/path/to/outputfile.m4v"


Encore accepts it.
Tested with the “Mac Blu-Ray Player”.
It might have unrefined parts, ready for slimming it down further, but as a starting point, it’ll do.
I think defining raw -f h264 together with the m4v target did most of it.

Best
M

[Manuel Weber]

hi
do you know…
Is this in general, or just for Hackintoshes?
A real mac wouldn’t bother?

best mw

[Manuel Weber]

is this (GUI is passed, the other one is taken) also true for let’s say a Quadro4000 which is said to be suitable “for both GUI and/or render”.

so the cuda capabilitites of the GUI card won’t help, too?

best
mw

[Manuel Weber]

“The HDMI output of your Blackmagic product is not compatible with DVI. While
HDMI connections can be compatible with DVI connections, the HDMI output of
our products uses the YUV colour space, whereas DVI can only accept an RGB
colour space signal. HDMI can carry YUV or RGB signals, but with our
products they only output in YUV.”

there you have the initial problem. YUV against RGB. that makes sense.
a SDI/DVI may do the conversion of the color space, but you dont know it its progressive then. and what to do with interlaced footage. can you just output it 25p/30p? The PA241W hates interlaced.

xrite uses ICC profiles i think. that is on a software layer. but with video its all about LUTs.
the question is: can you produce a LUT calibration, i think. the hdlink has the ability to import LUTs via USB which could be monitor recalibration information.
another, cleaner way would be the calibration of the NEC itself, since its fixing where something is broken (this screen has SD and HD colorspaces presets), and there is a system independent correction tool in the monitor itself. it’d be happy if you could inform me, if you’d go this way and do a research with NEC. didn’t do that yet. i think its a proprietary NEC thing that you plug into the monitors USB ports or smth.

but i dont know

m

[Manuel Weber]

hi again

i get a feeling you are in the same state as i was then. just make the damn monitor work.
the NEC support said it was completely not possible to connect HDMI sources. but no further explanations. i learned not much.

yes i think that monitor is a sissy when it comes to input.
*start hypothtetical*
i think the safe way in any case is a hdlink.
*end hypothtetical*

my setup is, and is perfectly working:
decklink hd extreme 3d, hdlink displayport, nec.
you can send whatever you want.
1 downside: the nec sometimes wants to sleep when theres no signal. i think that could be adjusted.

put it this way:
all sdi cards from BM can expected to deliver 100% same standart sdi.
BM answered me to my question, that no card will do a conversion of the sent material concerning interlaced, progressive, etc. it will output the input through sdi as it arrives at the card. given that the image specs are accepted at all (see manual of each card). so when i am not mistaken i am led to think that all the work for that NEC to match is done in the hdlink.

so to be really sure and save money i would do two things.
1. check with BM if a cheaper card does it as well. (is it the same output, does hdlink accept…)
2. check with BM if the hdlink (not only Displayport) will manage the NEC. give them your NEC specs. ask what it does exactly.

i expect the result will be, that the cheapest sdi version of BM decklink will do. i further expect that it wont need to be the displayport version of hdlink, because DP is actually a special feature of the NEC which maps the signal directly to the pixels, without any help from the NEC. and the DVI port was made for any whatever computer.

BM will probably tell you that hdlink will handle any crappy monitor. but its always good to ask naive/desperate/simple questions before buying, even when you get a flat answer. good for giving a device back, just in case.

hope that helped a bit more, dont hesitate.
but i wonder why no superpro has interfered yet in this discussion…

good luck
m

[Manuel Weber]

issue 1:
red and green
issue 2:
framerates and refreshrates.
i needed an hdlink because that device is kindof idiot proof image-ajusting the signal for the connected monitor. i was very limited to the ways i could send images to the intensity pro. that NEC is indeed a good monitor with great presets and hardware calibration. even different broadcast spaces. but it is acctually a photo monitor. no chance with television HDMI kindof standard input (what exactly is HDMI standard nowadays? confused.) i think the intensity pro couldnt deliver 50i or 25p at 50 or 60hz. hdlink seems to read the needs from the monitor or just tries them through. it seems like they say, every monitor works. seemingly to me.

in your case i would check what exactly your monitor needs for an input, and ask if that matches the output of the intensity pro. directly at BM or in the manual.

because of every negative consult with blackmagic and NEC for the given gear i decided for a turnkey combination of hdlink and a decklink with sdi output (for hdlink). i now use display port, but i *think* it would work with the dvi version as well. i think of the hdlink as a flattener and kindof conformer in refresh rates. not sure. but, despite any expectations it will not deinterlace. you get (just visible) interlaced on the NEC if you send it so. this is up to the software, or to a good dedicated device , says BM.

issue 1 remained with the new setup. and was solved with the settings in the control panel i described.
did that help?

best
m

[Manuel Weber]

hi michel

i cannot tell you in precise terms what the problem is.
fact is, i had the problem with the monitoring, as well as in a case where a beamer expected the HD colorspace when instead linear RGB was given.

when giving 4:4:4 SDI to the monitor (in my case the HDlink first) a dual link is needed (both in desktop video).
i think opposite case was with 4:2:2 and single link, but not sure.

hope that helped, the thing that an independent system had the same issue (beamer, just switch the colorspace) led me to the conclusion: i need to know more, and no, nothing is broken… 😉

best
m

[Manuel Weber]

thanks. i got that finally.
my monitor was at 50hz and 60hz without a scaler or so.
the only thing that helped, and i think one of the cheapest solution was a BM hdlink.
it takes whatever comes from sdi and outputs progressive at the refreshrate needed.

and for the sake of completeness:
no deinterlace neither with hdlink nor any decklink. it just passes the fields on. and hdlink flattens it.

cheers
m