1154536 - Disable 4k H264 video on Vista

Status: RESOLVED FIXED

(Core :: Audio/Video, defect, P1)

Description

[Matt Woodrow (:mattwoodrow)]

Attachment: Disable 4k video on vista

Vista doesn't properly support hardware decoding of 4k videos, and most vista machines struggle to decode 4k in software.

We should just disable at from CanPlayType so that youtube doesn't offer it to vista users.

Comment 2

[Sylvestre Ledru [:Sylvestre]]

Tracking to make sure it lands in 38

Comment 3

[Liz Henry (:lizzard)]

Tracking for 39,  since in bug 1146362 this affected 37+.

Comment 4

[Pulsebot]

https://hg.mozilla.org/integration/mozilla-inbound/rev/b8ce67b3ccc6

Comment 5

[Matt Woodrow (:mattwoodrow)]

https://hg.mozilla.org/integration/mozilla-inbound/rev/b8ce67b3ccc6

Comment 6

[Ryan VanderMeulen [:RyanVM]]

https://hg.mozilla.org/mozilla-central/rev/b8ce67b3ccc6

Comment 7

[Sylvestre Ledru [:Sylvestre]]

Matt, can we have an uplift request to aurora and beta? Thanks

Comment 8

[Matt Woodrow (:mattwoodrow)]

Comment on attachment 8592558 [details] [diff] [review]
Disable 4k video on vista

Approval Request Comment
[Feature/regressing bug #]: MSE
[User impact if declined]: Poor youtube performance if the user selects 4k
[Describe test coverage new/current, TreeHerder]: Tested manually, no automated coverage
[Risks and why]: Very low risk, just changes what resolutions we report as supported to youtube.
[String/UUID change made/needed]: None

Comment 9

[Sylvestre Ledru [:Sylvestre]]

Comment on attachment 8592558 [details] [diff] [review]
Disable 4k video on vista

thanks
should in 38 beta 7

Comment 10

[Ryan VanderMeulen [:RyanVM]]

https://hg.mozilla.org/releases/mozilla-aurora/rev/97cbb76b64ce

Comment 11

[Ryan VanderMeulen [:RyanVM]]

https://hg.mozilla.org/releases/mozilla-beta/rev/650ed1bb5a04