1848631 - Firefox on X11 still needs wayland compilation for VAAPI video decoding

Status: RESOLVED DUPLICATE of bug 1843425

(Core :: Widget: Gtk, defect)

Description

[haarp]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/116.0

Steps to reproduce:

Compile Firefox 116.0 with --enable-default-toolkit=cairo-gtk3-x11-only -> No VAAPI video decoding under X11.

Compile with --enable-default-toolkit=cairo-gtk3-x11-wayland -> VAAPI video decoding under X11.

This should've been fixed in #1839599 but it seems to still be missing something. Observed under Gentoo Linux. Downstream bug: https://bugs.gentoo.org/911941

Actual results:

No hardware video decoding under X11. Firefox reports Blocklisted by gfxInfo and FEATURE_FAILURE_VIDEO_DECODING_TEST_FAILED in about:support (HARDWARE_VIDEO_DECODING section) and starting it with the MOZ_LOG="PlatformDecoderModule:5" env confirms during video playback that the string "VA-API" is nowhere to be found.

Expected results:

Working VAAPI video decoding.

Comment 1

[haarp]

ccing author of bug 1839599

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Widget: Gtk' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.