1950032 - Enable the hevc playback pref by default on Linux

Status: RESOLVED FIXED

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

Description

[Alastor Wu [:alwu]]

The implementation of HEVC playback support has landed in bug 1894818. Now we can turn the pref on by default on Linux.

Comment 1

[Alastor Wu [:alwu]]

Attachment: Bug 1950032 - enable HEVC playback by default on Linux.

Comment 2

[Alastor Wu [:alwu]]

Attachment: Bug 1950032 - add debug log.

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/46b308dd8e7b
enable HEVC playback by default on Linux. r=media-playback-reviewers,padenot
https://hg.mozilla.org/integration/autoland/rev/f931666cb551
add debug log. r=media-playback-reviewers,padenot

Comment 4

[agoloman]

Backed out for causing canvas failures @canvas-display-p3-drawImage-ImageBitmap-video.html.

• Backout link
• Push with failures
• Failure Log

Comment 5

[Alastor Wu [:alwu]]

Attachment: Bug 1950032 - disable some wpt test items on Linux.

In canvas-display-p3-drawImage-video.html, it will append both mp4 and webm
sources and let browser to determine which source is supported. The mp4 file is
HEVC, which doesn't support on Linux before until we turn the pref on in this
bug.

If we run webm file on the test, the test will pass as before. Therefore, we
should either fix this color diff error for HEVC, or modify the test to use
webm file first.

Comment 6

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/051d530d45a2
enable HEVC playback by default on Linux. r=media-playback-reviewers,padenot
https://hg.mozilla.org/integration/autoland/rev/e328133621cb
add debug log. r=media-playback-reviewers,padenot
https://hg.mozilla.org/integration/autoland/rev/b3b65f1c13d5
disable some wpt test items on Linux. r=jrmuizel

Comment 7

[Sandor Molnar[:smolnar]]

https://hg.mozilla.org/mozilla-central/rev/051d530d45a2
https://hg.mozilla.org/mozilla-central/rev/e328133621cb
https://hg.mozilla.org/mozilla-central/rev/b3b65f1c13d5

Comment 8

[Alastor Wu [:alwu]]

It's worth to update the Browser Compatibility for HEVC on MDN. Firefox already supports HEVC on Windows since 134 (for HW decoding, SW will only be supported if user explicitly installs the paid extension). On MacOS, Firefox will support HEVC on 136 (both SW and HW), and on 137 on Android (HW) and Linux (SW&HW via the system ffmpeg).

Comment 9

[Pascal Chevrel:pascalc]

Release Note Request (optional, but appreciated)
[Why is this notable]: Support HEVC playback on Linux
[Affects Firefox for Android]: No
[Suggested wording]: : Support HEVC playback on Linux
[Links (documentation, blog post, etc)]: No

Comment 10

[Pascal Chevrel:pascalc]

Note added to our nightly release note, keeping the flag open until it ships to the release channel.