1077277 - Testcase were a solid white video comes out solid gray

Status: RESOLVED WORKSFORME

(Core :: Audio/Video: Playback, defect)

Description

[Jean-Yves Avenard [:jya]]

Attachment: Testcase were a solid white video comes out solid gray

From https://bugzilla.mozilla.org/show_bug.cgi?id=941296#c92

"I'm not sure if this is the right place but this link pointed me to this bug: https://developer.mozilla.org/en-US/docs/Web/HTML/Supported_media_formats

I'm having some issues with MP4:s that we are using in a current project. Our videos have a solid white background but in OS X Nightly (as of 2014-10-02) the background comes out as light gray. The same video works correctly in Chrome and Safari.

Screenshot of how it looks in Chrome: http://cl.ly/XqAI

Screenshot of how it looks in Nightly: http://cl.ly/XqDx

These screenshots are of the attached test-case."

Comment 1

[Jean-Yves Avenard [:jya]]

Works for me on both aurora and nightly. This is on a mac pro 2013 with a D500 graphic card

Aurora uses YUV420 output format (and studio level).
Nightly uses RGB32, as such the PC vs Studio level aren't relevant (unless Apple HW conversion is wrong)

Comment 2

[Johan Larsson]

(Original commenter)

I'm on an MBPr (late 2013) with a NVIDIA GeForce GT 750M 2048 MB graphics card.

I tried it in Aurora and it works properly there: http://cl.ly/XrbS

Comment 3

[Jean-Yves Avenard [:jya]]

Works fine on MBA late-2013 with intel HD5000

Comment 4

[Jean-Yves Avenard [:jya]]

(In reply to Johan Larsson from comment #2)
> (Original commenter)
> 
> I'm on an MBPr (late 2013) with a NVIDIA GeForce GT 750M 2048 MB graphics
> card.
> 
> I tried it in Aurora and it works properly there: http://cl.ly/XrbS

are you sure you are using the built-in video decoder and not some plugins ?

Comment 5

[Jean-Yves Avenard [:jya]]

confirmed that with nvidia video card on MBPr late 2013 it's grey.

I would lodge a bug with Apple that their format conversion is buggy there.

Would probably be fixed if we completed bug 1061525

Comment 6

[Jean-Yves Avenard [:jya]]

Bug lodged upstream as Apple bug 18546407

Comment 7

[avada]

It's grey here too. FF33 new profile, Windows 8.1, GTS450, which has nothing to do with apple.
On central it seems to be okay.

Comment 8

[Jean-Yves Avenard [:jya]]

This is likely related to bug 879099.

It appears that nvidia handles colour conversion differently (and are actually the only ones doing it right)

Comment 9

[avada]

(In reply to Jean-Yves Avenard [:jya] from comment #8)
> This is likely related to bug 879099.
> 
> It appears that nvidia handles colour conversion differently (and are
> actually the only ones doing it right)

I don't think that bug is the same. I still get gray video, even though I use the workaround for that bug to get proper video.
And if I set limited range, I get an even grayer video.

Comment 10

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

Is this still an issue?

Comment 11

[Jean-Yves Avenard [:jya]]

on mac, unlikely since we are using YUV all the way with no RGB conversion