[DoVi_Scripts] Multi-Function Scripts for Dolby Vision processing and a lot more...

[Kuler087]

Yes, they look fine but maybe you were just lucky.

If you have the Spears And Munsil demo clip, try it because it still drops frame with the MKV container, I just tried.
With the MP4 container, it's fine so as far as I can tell, HEVC decoding in resolve is still not reliable.

[Black Ops]

is it free to download? or paid?

All 4 movies were mkv's. I wonder if its system specific? I would need an exact video that is confirmed to be dodgy to really confirm. I would have thought 4 movies doing 3x runs would show any defects in HEVC decoding

[Kuler087]

I wonder if its system specific?

why would it work fine with the mp4 container then?

I would have thought 4 movies doing 3x runs would show any defects in HEVC decoding

I did a lot of movies without problems too. It's just not reliable enough for me and while MP4 is 10 times more stable, I just cannot trust it and prores is safer.

is it free to download? or paid?

check your pm

[Black Ops]

Fair point. you would expect it on both containers.

You are correct in saying that prores is safer but the extra hour added in creating the intermediate video becomes quite time consuming when doing multiple files hence why im trying to bypass it.

[wyup]

Hi. Your Trap 2024 HDR analysis shows a MaxCLL of 127 nits. This will watch dark on tvs. Have you thought of a workflow to tonemap these low nit movies to say 1,000 nits and take advantage of the display brightness? We could choose libplacebo Bt.2446.a, input MaxCLL, target 1,000 nits.

[Kuler087]

No, I won't do that because, as I said some time ago, I don't believe in automatically boosting the brightness evenly throughout the movie.
For ''proper'' result, it must be monitored and adjusted manually in grading software which is what I did with this movie:

[Black Ops]

Not sure if ive stumbled upon a bug in workflow 6-1 (Measuring LetterBox Manual).

If the file association isnt set for the .AVS file to AVSPmod then an error message pops up saying "this file does not have an app associated with it" mainly occurs when Windows can't find a compatible app for opening a specific file type" . Currently the AVS file association is set to avisynth+ since i installed it as part of the pre-req required for the tools

Looking at the batch file i see AvsPmod is invoked via the command like below

start "%AvsPmod_path%" "%output_path%%filename%.avs"

if i modify the line like below, it works properly

start "" "%AvsPmod_path%" "%output_path%%filename%.avs"


https://ss64.com/nt/start.html

[Kuler087]

thanks, will modify

[wyup]

Originally Posted by Kuler087

No, I won't do that because, as I said some time ago, I don't believe in automatically boosting the brightness evenly throughout the movie.
For ''proper'' result, it must be monitored and adjusted manually in grading software which is what I did with this movie:

A manual regrade is always fine, but as much as I respect your opinion, if this script provides automatic workflows for HDR10 to SDR using libplacebo tonemapping, why not the inverse? In theory, evenly boosting brightness isn't as critical as compressing to SDR, as you don't have to trade up or lose anything. (similar to linear audio normalization vs loudness compression :-)

For example, rigaya hardware encoder provides libplacebo tonemapping options for any purpose.

[Kuler087]

Well, it's not the same thing. When you convert HDR to SDR, you just compress data present in the source. When you go from SDR to HDR, you create/simulate data not in the source. Maybe I'm not explaining it correctly, sorry English is my second tongue.
You might want to look into staxrip. There are many filters/plugins that should be able to do what you want.

If you have access to my RPU collection link, I share all my HDR re-grade project files (Resolve) so you just have to load the DRP file, rip your disc and import the movie in Resolve. Once in Resolve, you can edit or preview my work and then you can deliver it.

[wyup]

Please allow me to disagree. I mean HDR to HDR, although it doesn't change much.

When you convert HDR to SDR, you just compress data present in the source.

When you convert HDR to SDR, you can't fit all HDR range in a narrower SDR range, you have to discard something, so you lose data in the source. You choose your balance from different tonemapping algorithms.

When you go from SDR to HDR, you create/simulate data not in the source.

When upping nits, you just tonemap up the same content, like turning up brightness + contrast, or peak brightness on a tv. In that sense, you create/simulate as much as in HDR to SDR conversion, but you don't lose information. None of these conversions will be the same, but it might be interesting to try turning up the brightness while keeping the original grade as intact as possible. What I think you do with low nit grades like Romulus is tweaking up highlights, which is fine, but I'd just want the same image, only proportionally brighter, because tvs don't let you increase more brightness.

I am not familiar with Staxrip, but fast reading its wiki there are HDR to SDR functions although not HDR to HDR. I can choose from all libplacebo tonemapping options with Rigaya QSVEncC.

[tormento]

Much better to go for HLG than SDR.

[ac777103]

Having run 6-2 and 3-1 on quite a few titles now, I've come across just a couple where the graph produced by 6-2 reports BT2020 in the mastering display info: The Empire Strikes Back and Inside Out 2 UK discs. So I've used the 21 option for 3-1 on these titles, just curious though what the visual significance is of BT2020 vs P3, and if I made the mistake of specifying P3 for these titles how things would change.

[Kuler087]

I've never tested if there was any visual difference but I don't think it matters that much.

[Black Ops]

Might be another bug using Windows 11 24h2. Looks like WMIC is deprecated and only available as a Feature on demand so the disk space check fails since WMIC is not present. Ive got the powershell command below which should calculate the freespace. Seems to run in command prompt (Assuming you set the letterPath variable first). Hopefully the command below should help you incoperate the free space check in the newer version of your scripts.


powershell -command "[math]::Floor((Get-WmiObject Win32_LogicalDisk -Filter "DeviceID='%letterpath%'").FreeSpace / 1GB)"

[Kuler087]

my win11 pc didnt get that update yet. I'll check it out

[Black Ops]

Is there any way to completely automate the workflow to generate hdr10+ metadata and inject it into the original. The davanci side of stuff (Scene Detect, Output blanking and generating hdr10+ metadata and export). Are there any 3rd party CLI tools that can automate this side of the workflow?

It gets quite tiresome to do this for multiple episodes of a TV show. In my case, i do this because my samsung qn90c 50 inch TV doesn't have dolby vision so HDR content is dimmed abit too much since it tonemaps the input based on MAXDML.

[Kuler087]

No, I don't think so.

[Black Ops]

I guess if I can’t automate it. Is there any way to stop the TV from tone mapping hdr10 unceccesarily and display a more 1:1 image?

[Kuler087]

With Dolby Vision content (generated or original), you can do that with LLDV and a high edid but if you have a bright TV (1000+), you need to find a cmv4.0 player because all the 2.9 players have a bug with lldv and edid higher than 1000nits. If your TV is less than 1000nits, then the Ugoos AM6B+ is the perfect solution for any HDR10/HDR10plus display since it has a built-in edid injector and supports 12-bit FEL decoding as a bonus... Unfortunately, cmv4.0 is not supported in lldv on the ugoos but it supports everything else.

ATV and Shield support cmv4.0 LLDV but they require expensive HDfury products to force LLDV and don't support 12-bit FEL.