Support for Color profiles

Feature requests for VLC.
DGMurdockIII
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Re: Support for Color profiles

Postby DGMurdockIII » 01 Aug 2010 22:02

bump to not loose the info

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Re: Support for Color profiles

Postby eltouco » 06 Aug 2010 15:27

bump to not loose the info
Ycms is a great initiative, it works with Madvr which is a wonderful render, unfortunetly, as seen here viewtopic.php?f=7&t=79902&p=265811&hilit=madvr#p265811
it is very unlikey that we see a support for MaDVR in VLC.
nevertheless, maybe a color managed VLC could be possible if done natively in it (can some VLC developers confirm that ?)

I'm not able to write code for VLC but I could write a precise specifications in order to handle colr the right way if it can help.

Touco

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Re: Support for Color profiles

Postby VLC_help » 06 Aug 2010 15:42

One video filter would be enough if you use VOUT that doesn't do any color changes.

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Re: Support for Color profiles

Postby eltouco » 06 Aug 2010 16:26

One video filter would be enough if you use VOUT that doesn't do any color changes.
yes, but it is precisely why a feature request is needed :)
sending straight away RGB value to the video output is not the right thing to do regarding to color management.
you have to take into account whether or not the video is SD or HD (the primaries are different for the YcrCb->RGB conversion) and it should take into account the display ICC profile.

for instance what if the screen doesn't have a 2.2 gamma but a lower gamma ? if VLC is color managed it will do some gamma correction the scene will be displayed the same as on a 2.2 gamma screen, currently with VLC the scene will be darker thand it should.

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Re: Support for Color profiles

Postby mcantu » 27 Aug 2010 04:09

i'd also like to request ICC profile support. mpc-hc has recently added full color management but i would much rather use vlc...

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Re: Support for Color profiles

Postby sblantipodi » 18 Sep 2011 20:00

is there some news about VLC and color management?

is it color managed now?

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Re: Support for Color profiles

Postby VLC_help » 19 Sep 2011 15:57

Shader support is in VLC 1.2.0, so you can do manual corrections.

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Re: Support for Color profiles

Postby sblantipodi » 19 Sep 2011 17:59

manual correction is something, support for color management is another.
I asked if VLC supports color profile. :)

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Re: Support for Color profiles

Postby mcantu » 10 Dec 2011 19:08

any word on possible color profile support?

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Re: Support for Color profiles

Postby VLC_help » 11 Dec 2011 16:01

AFAIK nobody is working with this.

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Re: Support for Color profiles

Postby mcantu » 12 Dec 2011 02:59

thats too bad. mpc-hc has had it for almost 2 years now. i think color profile support would go a long way towards giving VLC more acceptance in the HTPC community (which seems to go mainly to mpc-hc)

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Re: Support for Color profiles

Postby Jean-Baptiste Kempf » 12 Dec 2011 10:51

True. Although, one would argue that the HTPC enthusiast community is still quite small and not really helping on VLC... Patches are welcome though...
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Re: Support for Color profiles

Postby Rucha99 » 09 Mar 2012 11:22

There is "Shader support in the OpenGL output, for colorspace conversion, including 10bits." announced in latest 2.0 version of VLC Media Player in the website.
But I cannot find any settings and documentation for this.
How to use this feature?

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Re: Support for Color profiles

Postby Jean-Baptiste Kempf » 09 Mar 2012 17:17

It is automatic, you cannot provide your own scripts yet.
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Re: Support for Color profiles

Postby Rucha99 » 10 Mar 2012 12:05

How can it be automatic? What is logic of conversion? I don't see any changes compare to previous version. I think it does not work at all.

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Re: Support for Color profiles

Postby VLC_help » 11 Mar 2012 09:49

The code is in
http://git.videolan.org/?p=vlc.git;a=bl ... t/opengl.c
(lines 299-333)

OpenGL does the chroma conversion automatically, if the formats are supported. So there isn't a CPU chroma conversion in that case.

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Re: Support for Color profiles

Postby mcantu » 12 Mar 2012 08:08

thank you!!

does OpenGL need to be selected as the output method for the color profile support to work?

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Re: Support for Color profiles

Postby Jean-Baptiste Kempf » 12 Mar 2012 13:16

Yes, it does YUV->RGB conversion in shaders.
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Re: Support for Color profiles

Postby eltouco » 23 Jul 2012 19:51

I think there is a misunderstanding, this code is only about the YUV->RGB conversion nothing about color profile.

I made some test using directX and OpenGL, i don't see any difference in color although i have an ICC profile set up.

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Re: Support for Color profiles

Postby Jean-Baptiste Kempf » 27 Jul 2012 00:05

There is a misunderstanding, the code does not do it yet. Sorry.
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eltouco
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Re: Support for Color profiles

Postby eltouco » 26 Aug 2012 12:56

There is a misunderstanding, the code does not do it yet. Sorry.
ok, so no support for color profile as today.
is there a feature request in the trac system so we can trace this feature ?


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