Gentoo Websites Logo
Go to: Gentoo Home Documentation Forums Lists Bugs Planet Store Wiki Get Gentoo!
Bug 746521 - www-client/firefox-81.0.1: media.ffmpeg.vaapi.enabled not enabled in about:config
Summary: www-client/firefox-81.0.1: media.ffmpeg.vaapi.enabled not enabled in about:co...
Status: RESOLVED UPSTREAM
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Mozilla Gentoo Team
URL: https://bugzilla.mozilla.org/show_bug...
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-10-04 12:50 UTC by oakszyjrnrdy
Modified: 2020-10-04 16:23 UTC (History)
2 users (show)

See Also:
Package list:
Runtime testing required: ---

Attachments
emerge_info (emerge_info,6.22 KB, text/plain)
2020-10-04 12:50 UTC, oakszyjrnrdy 		Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description oakszyjrnrdy 2020-10-04 12:50:22 UTC 
Created attachment 663751 [details]
emerge_info

If I build www-client/firefox-81.0.1 with these USE in package.use: wifi lto dbus clang, there will be no media.ffmpeg.vaapi.enabled not in about:config of firefox.

And if I add wayland to firefox's USE, media.ffmpeg.vaapi.enabled appears.
Comment 1 Thomas Deutschmann (RETIRED) gentoo-dev 2020-10-04 14:12:27 UTC 
Yeah, VA-API decoding is only implemented for wayland at the moment, see https://bugzilla.mozilla.org/show_bug.cgi?id=1619523.
Comment 2 oakszyjrnrdy 2020-10-04 14:19:07 UTC 
(In reply to Thomas Deutschmann from comment #1)
> Yeah, VA-API decoding is only implemented for wayland at the moment, see
> https://bugzilla.mozilla.org/show_bug.cgi?id=1619523.

No, VA-API decoding is available on X11 after Firefox 80. I can confirm this because I have another computer running Arch Linux with VA-API decoding enabled on X11 on Firefox 81.
Comment 3 Mart Raudsepp gentoo-dev 2020-10-04 15:20:27 UTC 
It's apparently behind USE=wayland due to upstream structure of the code, as per the linked upstream bugzilla comments.
Comment 4 oakszyjrnrdy 2020-10-04 16:23:35 UTC 
(In reply to Mart Raudsepp from comment #3)
> It's apparently behind USE=wayland due to upstream structure of the code, as
> per the linked upstream bugzilla comments.

Thanks.