Why YUV to RGB conversion?

Microsoft Windows specific usage questions
Forum rules
Please post only Windows specific questions in this forum category. If you don't know where to post, please read the different forums' rules. Thanks.
Shakama
Blank Cone
Blank Cone
Posts: 53
Joined: 05 Aug 2008 02:18

Why YUV to RGB conversion?

Postby Shakama » 07 Oct 2009 15:28

its turned on by default and i have no idea why this thing is considered in the first place, when all it does is make the video look more whiter and ruins the contrast as well as the colors of the video. it is quite similar to quicktime's high gamma video look. i turn it off for that reason but i want to know why its turned on in the first place and why does quicktime's videos look washed out.

Shakama
Blank Cone
Blank Cone
Posts: 53
Joined: 05 Aug 2008 02:18

Re: Why YUV to RGB conversion?

Postby Shakama » 08 Oct 2009 12:42

cant i get a quick answer? i think it should be turned off by default.

VLC_help
Mega Cone Master
Mega Cone Master
Posts: 25661
Joined: 13 Sep 2006 14:16

Re: Why YUV to RGB conversion?

Postby VLC_help » 08 Oct 2009 13:12

You display driver work incorrectly if the YUV to RGB conversion does that. For this reason there is an option to disable it.

Shakama
Blank Cone
Blank Cone
Posts: 53
Joined: 05 Aug 2008 02:18

Re: Why YUV to RGB conversion?

Postby Shakama » 10 Oct 2009 14:11

i got nvidia, and that happened with more than one card with different computers. you get better color as well as contrast when its disabled

Jean-Baptiste Kempf
Site Administrator
Site Administrator
Posts: 37523
Joined: 22 Jul 2005 15:29
VLC version: 4.0.0-git
Operating System: Linux, Windows, Mac
Location: Cone, France
Contact:

Re: Why YUV to RGB conversion?

Postby Jean-Baptiste Kempf » 14 Oct 2009 14:01

nVidia drivers are so broken it is not even funny anymore.
This colour contrast issue is a nVidia "Feature"!
Jean-Baptiste Kempf
http://www.jbkempf.com/ - http://www.jbkempf.com/blog/category/Videolan
VLC media player developer, VideoLAN President and Sites administrator
If you want an answer to your question, just be specific and precise. Don't use Private Messages.

hardynicks
Blank Cone
Blank Cone
Posts: 45
Joined: 01 Nov 2009 20:30

Re: Why YUV to RGB conversion?

Postby hardynicks » 23 Jun 2010 12:37

nVidia drivers are so broken it is not even funny anymore.
This colour contrast issue is a nVidia "Feature"!
How can it be the fault of the driver when ffdshow and Microsoft decoder do not have this problem on default settings (same problem here on 1.1.0 with NVidia 9800GT)?

Jean-Baptiste Kempf
Site Administrator
Site Administrator
Posts: 37523
Joined: 22 Jul 2005 15:29
VLC version: 4.0.0-git
Operating System: Linux, Windows, Mac
Location: Cone, France
Contact:

Re: Why YUV to RGB conversion?

Postby Jean-Baptiste Kempf » 23 Jun 2010 13:43

Because they use special renderers.
Jean-Baptiste Kempf
http://www.jbkempf.com/ - http://www.jbkempf.com/blog/category/Videolan
VLC media player developer, VideoLAN President and Sites administrator
If you want an answer to your question, just be specific and precise. Don't use Private Messages.

hardynicks
Blank Cone
Blank Cone
Posts: 45
Joined: 01 Nov 2009 20:30

Re: Why YUV to RGB conversion?

Postby hardynicks » 23 Jun 2010 15:37

Because they use special renderers.
But if the problem occurs for all NVidia products why don't you just make VLC disable the feature for NVidia cards automatically? Otherwise many people may see the washed out colours and not even bother continuing to use VLC because they don't know they need to disable the feature.....

Jean-Baptiste Kempf
Site Administrator
Site Administrator
Posts: 37523
Joined: 22 Jul 2005 15:29
VLC version: 4.0.0-git
Operating System: Linux, Windows, Mac
Location: Cone, France
Contact:

Re: Why YUV to RGB conversion?

Postby Jean-Baptiste Kempf » 23 Jun 2010 16:23

Because it is way too slow.
Jean-Baptiste Kempf
http://www.jbkempf.com/ - http://www.jbkempf.com/blog/category/Videolan
VLC media player developer, VideoLAN President and Sites administrator
If you want an answer to your question, just be specific and precise. Don't use Private Messages.

hardynicks
Blank Cone
Blank Cone
Posts: 45
Joined: 01 Nov 2009 20:30

Re: Why YUV to RGB conversion?

Postby hardynicks » 23 Jun 2010 19:47

Because it is way too slow.
So you are saying you put speed above image quality??

Jean-Baptiste Kempf
Site Administrator
Site Administrator
Posts: 37523
Joined: 22 Jul 2005 15:29
VLC version: 4.0.0-git
Operating System: Linux, Windows, Mac
Location: Cone, France
Contact:

Re: Why YUV to RGB conversion?

Postby Jean-Baptiste Kempf » 24 Jun 2010 17:51

Why limiting all users because of some nVidia bug?
Jean-Baptiste Kempf
http://www.jbkempf.com/ - http://www.jbkempf.com/blog/category/Videolan
VLC media player developer, VideoLAN President and Sites administrator
If you want an answer to your question, just be specific and precise. Don't use Private Messages.


Return to “VLC media player for Windows Troubleshooting”

Who is online

Users browsing this forum: Bing [Bot] and 72 guests