Saturday, March 18, 2023

Re: [Avid-L2] Quicklimes with wrong levels flags.

Ok, done my homework (Job has bitched about Gamma shifts a lot in the past….)

It is simple: (Nah, it never is :-)

A QT file can have an clrn atom (an atom is a piece of info)
In there are three parameters:

-Colour Primaries (You see I'm using BBC language :-)
-Transfer Function
-Colour Matrix

Apps that are 'ColorSync aware' will adjust the display based on what is in this atom.

Now it is very easy for me to add something to QT change that will alter these values, but I have NO CLUE on what setting will solve what issue.
I would think that 'pro' apps will totally ignore whatever is in there, or at least let you override ColorSync stuff.

So writing 'something' in the manual is impossible without some additional help.
And, I need some additional info on 2.4 gamma…

And, I need to know if this is a stupid issue from the past that only affects users using steam powered stuff.
(In that case it still might help here and there, but if close to no-one uses it, no need to clutter the interface with stuff no-one uses.)

So, if anyone can help? (Or send (small) testfiles with what to expect / what goes wrong where.)

Some nice video about the subject:
https://player.vimeo.com/video/349868875


Bouke / edit 'B

videotoolshed.com
Van Oldenbarneveltstraat 33
6512 AS Nijmegen, the Netherlands
+31 6 21817248
If you want to send me large files, please use:
https://videotoolshed.wetransfer.com/

> On 17 Mar 2023, at 23:39, Dave Hogan via groups.io <mactvman=yahoo.com@groups.io> wrote:
>
> Not on that system right now, but let me see if I can come up with a couple short files to send you in a day or two.
>
> Not sure if QT Pro would do it. I'll give that a shot as well.
>
> Dave
>
>> On Mar 17, 2023, at 3:52 AM, bouke <bouke@editb.nl> wrote:
>>
>> QTchange can't do this right now.
>> Was QT pro able to do this in the old days?
>>
>> If i have the same file twice, but with only this flag changed, I know where to look for.
>>
>> Bouke
>>
>
>
>
>
>
>



-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#136105): https://groups.io/g/Avid-L2/message/136105
Mute This Topic: https://groups.io/mt/97667053/2971402
Group Owner: Avid-L2+owner@groups.io
Unsubscribe: https://groups.io/g/Avid-L2/leave/5759084/2971402/1548653033/xyzzy [administrator242.death@blogger.com]
-=-=-=-=-=-=-=-=-=-=-=-

No comments:

Post a Comment