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Old 14th May 2021, 13:31   #4281  |  Link
venom_dark
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Originally Posted by JKyle View Post
@venom_dark,

If there are no logs, no analysis is possible.

Plz post your log in the Issue Tracker of GitHub along with a proper explanation.
I will! Thank you very much!
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Old 15th May 2021, 07:25   #4282  |  Link
44vince44
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@JKyle, thanks for the explanation !!! again, a tool issue ;-)
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Old 15th May 2021, 15:44   #4283  |  Link
Arkana
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Originally Posted by JKyle View Post
There's a catch with Profile 7 sources. They are dual-layers, and depending on what kind of ELs they have (MEL vs FEL), it can be hard or impossible to re-encode with open-source tools like x265. Even a 1:1 remux without re-encoding can pose a problem for LLDV(Low Latency Dolby Vision) devices. See this note by desray.

Matter of fact, you can't tell until you do the encoding hands on. You may need to convert the HEVC stream as well to Profile 8.1 along with the RPU itself before re-encoding... Maybe you don't have to. I can't tell. Plz try it yourself.

This all happens because Dolby Vision is not a free, open format like HDR10 or HDR10+.

In my experience, single-layer sources (Profiles 5, 8.1, 8.2) were not that difficult to re-encode, but dual-layer profiles were different.
thanks for the detailed answer. appreciated
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Old 16th May 2021, 15:15   #4284  |  Link
Arkana
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@@JKyle so for now it's not possible to have a mkv file for re-encoded dolby vision stream using staxrip?
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Old 16th May 2021, 16:55   #4285  |  Link
manolito
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Quote:
Originally Posted by 44vince44 View Post
The last movie I converted, I used this script (with v1.4):
DGHDRtoSDR(white = 30, black = 0, gamma = 0.5, hue = 0.0,
\ r = 1.05, g = 1.06, b = 1.08, tm = 0.9,
\ roll = 0.7, fulldepth = true, mode = "pq",
\ impl = "255")
After doing more test encodes using LG, Sony and Samsung HDR demos (all PQ) I think that your HDRtoSDR parameters give way better results than the defaults. Especially the default for white (400) is ridiculously high. Is this only true for PQ sources, or does it also apply for HLG?

Since I did not find any HLG sources, I determined that just reducing the value for white to 30 gives already nice results, but they tend to look "cold". Your params fix this, and so far I have not found a source where they look bad. So I will use your params as my new defaults until I hit a source where the conversion result looks terrible...

And NO, I still do not want to tweak the params separately for each source using preview and a color picker. Especially since I have no way to compare the conversion results with the original. None of my software and hardware players supports HDR, and this won't change in the forseeable future.

So thanks for sharing your params, much appreciated...
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Old 17th May 2021, 06:12   #4286  |  Link
44vince44
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You're welcome manolito. I didn't find any HLG source either.

You can compare the output to one of players that do that conversion. I know of mpv or Stax76's mpv.net.
Although mpv (.net) tends to give a slightly bluish result, it is good as a guide.

@ to anyone who wants to know how I got those params:
those parameters were obtaines by adjusting on a source with the help of a color picker. It took me a couple of minutes only to find them.
First calibrate the brightest area you find in the whole feature, then calibrate the blacks. Then adjust gamma and roll to get the desired "contrast". Then adjust colors (r, g,b, values). Then re-tweak them all. With practice, it becomes easy.

Last edited by 44vince44; 17th May 2021 at 06:33.
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Old 17th May 2021, 14:36   #4287  |  Link
Atak_Snajpera
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Quote:
Originally Posted by 44vince44 View Post
You're welcome manolito. I didn't find any HLG source either.
https://4kmedia.org/travelxp-4k-hdr-hlg-sample/
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Old 17th May 2021, 16:12   #4288  |  Link
videoh
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Originally Posted by 44vince44 View Post
@ to anyone who wants to know how I got those params:
Thank you, guys. I agree that the defaults are not so good. When you have a set of parameters for HLG that you like I'll update the tools with your values for both PQ and HLG.
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Old 18th May 2021, 18:53   #4289  |  Link
manolito
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After a lot more tests I think I know which settings I will use for PQ and HLG sources (until someone else comes up with much better settings)...

My results are in no way scientific, I just took some available sources, converted them to SDR (and SD with REC.601) and watched the results. What really helped me was the LG_Cymatic_Jazz clip which is available at Andy Tather's site as PQ (original LG) and HLG (from Astra satellite test broadcast). Both originate from the same master, and while I do not know how accurately the Astra engineers converted the PQ source to HLG I just assume they did a good job. Download here:
https://andytather.net/Panda/VideoGalleryPage.aspx

I converted the PQ source using the 44vince44 parameters which resulted in a nice looking SD clip. Then I tried to match this result using the HLG source, and the closest result I could get was using the HDRtoSDR default parameters with the exception of the "white" parameter which needed to be raised to 2000 (from the default of 400).

To sum it up my DGHDRtoSDR parameters are as follows:

HLG sources:
DGHDRtoSDR(mode="hlg", white=2000)

PQ sources:
DGHDRtoSDR(mode="pq", white=30, gamma=0.5, r=1.05, g=1.06, b=1.08, roll=0.7)


The results are here:
https://we.tl/t-LhX0RzobLJ

Far from perfect I guess, but at least for my needs this is a very good starting point.

Last edited by manolito; 18th May 2021 at 19:46.
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Old 19th May 2021, 02:08   #4290  |  Link
videoh
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Cool. Thank you manolito.
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Old 21st May 2021, 23:49   #4291  |  Link
bin.n2f
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help



what wrong here am i messing some files ?

https://ibb.co/rysw4x6



FileNotFoundException (2.1.7.1)



System.IO.FileNotFoundException:
File name: 'System.Net.Http, Version=4.2.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'
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Old 22nd May 2021, 15:33   #4292  |  Link
Atlantis
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FFT3DFilter v2.9 is released

I already put this on the page request long before 2.6.0 release and it is still not included with 2.6.0
https://github.com/staxrip/staxrip/w...pdate-Requests
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Old 22nd May 2021, 16:29   #4293  |  Link
44vince44
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Must have been a mistake from our part. I'm checking this with @Dendraspis.
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Old 22nd May 2021, 17:00   #4294  |  Link
44vince44
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Ok it has been accidentally deleted 19 days ago.
@Jkyle, it appears (if I'm not mistaken) it was deleted after your commit here, please confirm there is no reason (read explanation below) ?

@Atlantis, it appears JKyle was cleaning up the page, at the exact same time you were editing. When someone edits a Wiki page, and stays long in edit mode, the page does not get refreshed, so they have no idea someone else has made a new addition.
I think that's what happened 19 days ago. A sync problem: 2 people editing at the same time...

Will be included in next release.
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Old 22nd May 2021, 19:54   #4295  |  Link
JKyle
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I have no idea what happened. I didn't mean to delete anything intentionally.

Like @44vince44 said, maybe the document was opened almost at the same time, but it's highly possible that I opened it first and @Atlantis opened it just a little bit later before I finished editing.
And I guess I saved it later than @Atlantis.
That's why I couldn't see @Atlantis's edit when I opened the document, and his edit was overwritten when I saved it.
Hmm...
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Old 23rd May 2021, 07:30   #4296  |  Link
Pauly Dunne
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Quote:
Originally Posted by Atlantis View Post
FFT3DFilter v2.9 is released

I already put this on the page request long before 2.6.0 release and it is still not included with 2.6.0
https://github.com/staxrip/staxrip/w...pdate-Requests
Yes, from back in March.

Why don't you just add it / overwrite it, yourself !!!
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Last edited by Pauly Dunne; 23rd May 2021 at 08:30.
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Old 23rd May 2021, 09:53   #4297  |  Link
Atlantis
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Originally Posted by Pauly Dunne View Post
Yes, from back in March.

Why don't you just add it / overwrite it, yourself !!!
What kind of question is that? What that has got to do with anything? I said it was not updated in staxrip.
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Old 23rd May 2021, 11:24   #4298  |  Link
44vince44
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@Pauly Dunne

Atlantis has done the correct thing to do, and thanks for that Atlantis.
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Old 23rd May 2021, 23:19   #4299  |  Link
chipxtreme
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AVG is picking up ffmpeg as containing a virus in latest build
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Old 24th May 2021, 00:29   #4300  |  Link
JKyle
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Quote:
Originally Posted by chipxtreme View Post
AVG is picking up ffmpeg as containing a virus in latest build
You need to be aware that some antivirus engines false detect executables compressed by UPX. See this thread on GitHub for detail.

I unpacked the same ffmpeg.exe file (27.48 MiB) by running the following command:

Code:
upx -d ffmpeg.exe
The resulting ffmpeg.exe is much bigger now. (81.17 MiB)

I uploaded it to VirusTotal and here's the scanning result: see this.

This false detection issue comes up pretty often. Hmm...

Quote:
Originally Posted by ProBroSam View Post
On StaxRip, while the Audio Encoding, if we choose the normalize option, the gain output always becomes 0 dB. But what if I want to use the normalize option but same time I want the gain output upto -1 dB, then which custom parameter should I use?
AFAIK, normalizing to 0 dB is hard wired in the code. If you want this 'feature', you can make a feature request on the GitHub Issue Tracker.
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