1253062 - (unaccel-video) [meta] Improve unaccelerated video performance

Status: NEW

(Core :: Graphics: Layers, task, P3)

Description

[Jeff Muizelaar [:jrmuizel]]

People deserve better

Comment 1

[Milan Sreckovic [:milan] (needinfo for best results)]

Attached to trello.

Comment 2

[Milan Sreckovic [:milan] (needinfo for best results)]

Peter, tell us who can work with Sotaro on this.  Anthony, let us know who is a good person from media to be a contact on this topic.

Comment 3

[Jeff Muizelaar [:jrmuizel]]

Sotaro and I took a look at a profile of video playback on windows.

It had a bunch of reasonably bad stuff:
- lots of page faults caused by new allocations
- quite a bit of time being spent in color conversion
- general cairo drawing overhead

Comment 4

[Peter Chang[:pchang]]

(In reply to Milan Sreckovic [:milan] (PTO until 3/23) from comment #2)
> Peter, tell us who can work with Sotaro on this.  Anthony, let us know who
> is a good person from media to be a contact on this topic.

Ethan will help on this. And they already began the discussion.

Comment 5

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

(In reply to peter chang[:pchang][:peter] from comment #4)
> Ethan will help on this. And they already began the discussion.

Chris Pearce is the person to talk to on the media side.

Comment 6

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

Can we use more CPU cores to do colour conversion and scaling?

Comment 7

[Jeff Muizelaar [:jrmuizel]]

(In reply to Anthony Jones (:kentuckyfriedtakahe, :k17e) from comment #6)
> Can we use more CPU cores to do colour conversion and scaling?

Yes, but there's lower hanging fruit first. The color conversion code that we're using is not very good so we should fix that first (see bug 1254872)