VIDEO Log to Rec709 viewing option

[alexk]

More and more documentary work is photos and video.
We download all the cards with PhotoMechanic.
I would like to add a preview LUT pulldown to quickly preview and move the videos to the Video Project Folders.
Most videos are shot in different flavors of LOG.

I was using KYNO, but development ended in 2021 as they sold the company.

[Kirk Baker]

Alex,

More and more documentary work is photos and video.
We download all the cards with PhotoMechanic.
I would like to add a preview LUT pulldown to quickly preview and move the videos to the Video Project Folders.
Most videos are shot in different flavors of LOG.

I was using KYNO, but development ended in 2021 as they sold the company.

I'm sorry but I don't know LUT from LOG without looking it up on Google.  If I had to guess, LUT would likely be Look Up Table.  I can't even guess what LOG is.

It is unlikely that PM will ever replace KYNO because our expertise does not cover video.

If we could figure out what kind of LUT a video has, what would a LUT pulldown (I assume a menu) do?
You'll really have to be more descriptive if you want an implementation, and even then, we have to gauge how much appeal such a feature would have to our users (or prospective users) versus the cost to develop the feature.

Based on your description, I have no idea how to implement such a feature.  Please describe in detail how this information is obtained, how it would be displayed, and what the menu items would do.

-Kirk

[alexk]

my bet!

LUT's are Lookup tables, it is a tiny file that a camera manufacturer provides to preview the LOL video in the correct colors.  Usually a .cube file "V-Log-Rec709.cube" indicates a Panasonic V-LOG to standard screen preview.
The is no processing or conversion involved.

LOG files and any video files recorded in a flat profile LOG. This is used to maximize the exposure and contrast of video for post-production.
iPhone to Canon, Panasonic, Nikon,Red, Arri, make video clips this way. they would be called AppleLog, C-Log, V-Log, N-Log and so on.

a pulldown menu would allow you to select the .cube file and preview a video file in the correct colors it was recorded. instead of seeing a grey flat image.
i am including a screenshot of the different views.

i can make a screen recording if this helps.

[alexk]

one more view

[Kirk Baker]

Alex,

LUT's are Lookup tables, it is a tiny file that a camera manufacturer provides to preview the LOL video in the correct colors.  Usually a .cube file "V-Log-Rec709.cube" indicates a Panasonic V-LOG to standard screen preview.
The is no processing or conversion involved.

LOG files and any video files recorded in a flat profile LOG. This is used to maximize the exposure and contrast of video for post-production.
iPhone to Canon, Panasonic, Nikon,Red, Arri, make video clips this way. they would be called AppleLog, C-Log, V-Log, N-Log and so on.

a pulldown menu would allow you to select the .cube file and preview a video file in the correct colors it was recorded. instead of seeing a grey flat image.
i am including a screenshot of the different views.

i can make a screen recording if this helps.

If you open one of those videos in QuickTime Player, does it take advantage of those .cube files?  The reason I ask is that PM on macOS uses the same underlying technology to render stills and playback video.  Basically, if QuickTime Player can't use them, then it's unlikely PM will be able to use them.  We use Apple's AVFoundation to do video in PM.  We don't have the resources to roll our own video system.

-Kirk

[alexk]

I understand I suppose it can not be implemented in QuickTime player or PM.

Qt does not support it, only FinalCut does.

thank you for the quick replies.

[Kirk Baker]

Alex,

I understand I suppose it can not be implemented in QuickTime player or PM.

Qt does not support it, only FinalCut does.

Can you share a very short video and one of the cube files?  Use the 'Attachments and other options' link when you're composing your reply to this message and there you'll be able to upload your files.  I did some research and I see some developers talking about adding a CIFilter (to do the color remapping) with AVFoundation, so it may be possible.

Thanks,

-Kirk