Author Topic: MLV App 1.8 - All in one MLV Video Post Processing App [Windows, Mac and Linux]  (Read 249190 times)

Danne

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Could you upload examples from another nle that you manage to match better? Also describe in what way colors are wrong? I am curious that's all.

Ilia3101

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Interested to see. Also if you coul provide one or two MLV files for testing I would be very happy. There will be more progress on the colour very soon. I have decided to scrap BetterProcessing branch and do things more incrementally. Slow and steady (but not that slow).

Improvements cuming very soon.
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Naviddabest

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Hi guys. I just wanted to ask if there is a way to convert mlv raw to a format that has hdr video or like uses the rec2020 colour space

Ilia3101

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What kind of HDR video type do you want? hybrid log gamma? I can add that if you want. Gamut selection is coming (Rec2020 will be there).
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DavidP

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How about these Ilia?

I included a colour chart shot on my ursa and another shot on the 5d mk iii. Both under the same Aputure 300d light with no modifiers so should be close to 5500k. p.s the Magic lantern raw is saved as uncompressed dng but I saved the Ursa footage as Blackmagicraw 5:1

https://drive.google.com/drive/folders/1660I8zaLNm5BmSPwpKI9lr6c3emW5RnY?usp=sharing

I still can't match them exactly :( The issue is telling resolve what colour gammut the mk iii has.

Ilia3101

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Thank you!

I still can't match them exactly :( The issue is telling resolve what colour gammut the mk iii has.

About telling resolve what gamut mkiii has... is that when you are importing it as DNG in to resolve?

MLV App is getting a few upgrades soon, I will try my best to find info about and add blackmagic sensor gamuts as options, so you can simulate prores from the blackmagic almost 1:1 in terms of colour.
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DavidP

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No problem, anything else I can do just let me know! I also have an a7sii if its any help.

So yes when I import as a prores file with any combo of settings to Resolve I can obviously choose rec709 or Blackmagic Design but I doubt its really accurate? When I then use Resolves colour transform tool it's not even close to matching skintones from those settings. Maybe if there was a way to have prores render it as accurate 5d mk iii to rec709 or bmfilm conversion? I did also try just importing the dngs and no cigar. I can actually match it with lots of qualifying nodes but would be great if we could get an accurate prores export so Resolves transform tool could get accurate base colour for conversions :)

DavidP

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Just to show it is possible:
c5cfe9c5cd

Graded to match but it is via individual color adjustments.

Dmytro_ua

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Just to show it is possible

The first one looks much better. In the second one I don't like the transition between the main skin color and a green tint on the right side.

Ilia3101

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Just to show it is possible:
...
Graded to match but it is via individual color adjustments.

Thanks for that, both look very nice. I think the second one does have a very little tinge of green in some areas of her face though (as Dymotro pointed out).

Was the BlackMagic image shot in ProRes or raw? And the 5D image, ProRes or DNG from MLV App?

I did also try just importing the dngs and no cigar. I can actually match it with lots of qualifying nodes

Hmmm sounds like Davinci resolve may not be using the colour matrices embedded in the DNG files. Though I don't have much knowledge about this area of Resolve.

Maybe if there was a way to have prores render it as accurate 5d mk iii to rec709 or bmfilm conversion?... would be great if we could get an accurate prores export so Resolves transform tool could get accurate base colour for conversions :)

This will come true very soon, I found a matrix for BMDFilm on the bmcuser forum, it is not official so not sure if it will be perfect, but should be much closer than current MLV App options. Will have this ready as an option in MLV App soon, as well as a few other gamuts.
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DavidP

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The green tint in the highlights is likely caused by the sun bouncing off the grass and trees to the right, then she's in a dark area.

That was dng and I manually graded. I've tried all the automatic settings to get something uniform I can easily produce but as noted earlier it doesn't work.

Naviddabest

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What kind of HDR video type do you want? hybrid log gamma? I can add that if you want. Gamut selection is coming (Rec2020 will be there).

Any kind, hdr10 maybe was just wondering if it was there. Thanks for the reply.

Ilia3101

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Any kind, hdr10 maybe was just wondering if it was there. Thanks for the reply.

Okay, I looked it up, HDR10 uses the Rec2020 colour gamut and Hybrig Log Gamma transfer function. I will add HLG as an option too. It'll be possible to get HDR10 output by selecting Rec2020 and HLG - not sure how you deal with that footage later on though, somehow you'll need to make other software interpret it as HDR

The green tint in the highlights is likely caused by the sun bouncing off the grass and trees to the right, then she's in a dark area.

Ah I see. BTW do you use mac or windows? I may want to send you a test build earlier than release, for you to test if the improved BMDfilm matches better.


UPDATE: I have done most of the work of allowing selectable gamut and transfer function, see commits. We just need to do the interface and then some more refinement. Should have a release ready soon.
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Ilia3101

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A small gift to the Linux users here... MLV Stitcher

Use case: Shoot in crop mode on a tripod, move the crop window around to capture a larger area of the sensor in a few separate shots, then combine those separate shots using this little app to create a new, higher resolution MLV!

Based on MLV App code, it can import multiple MLVs, move them around, crop them, and stitch them together. Has feathering for smooth transitions, exposure adjustment and difference blending to make aligning easier.

I will not continue as there is too few real life use cases. I also used Gtkmm for the interface, painful to use crap.

Download : https://drive.google.com/file/d/19aNCQh9xdWPPA2_P2pz_GWRFNw8zc4N_/view?usp=sharing

Source code found at https://github.com/ilia3101/MLV-App/tree/master/platform/mlv_blender

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Danne

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Cool! Mac users would love this ;). Hopefully linux users find it useful and could maybe post some examples.

ngemu

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when apply luts, selecting log type, and white balancing, does it matter what order I do these in on mlvap?

From my testing, it seems like whatever I select, everything comes out the same.

Asderq

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Hello? guys.
Maybe someone can help me. I'v found some kind of hot pixels. "Fix bad pixeles" didn't help.
This is 0,5 speed of 1920*1080 11-8 bit raw from 5dmIII with magiclantern-crop_rec_4k.2018Jul22.5D3113 firmware.


Ilia3101

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You are correct, processing internally always happens in the same order.

Cool! Mac users would love this ;). Hopefully linux users find it useful and could maybe post some examples.

Anyone is welcome to have a go at compiling it, you'll need Gtkmm library, maybe homebrew will let you install it.
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