1942421 - Enable H265 Decoder on Windows for WebCodecs

Status: NEW

(Core :: Audio/Video: Web Codecs, task, P3)

Description

[C.M.Chang[:chunmin]]

HEVC is enabled by default on Windows, so WebCodecs should be able to use it.

Comment 1

[C.M.Chang[:chunmin]]

Attachment: WIP: Bug 1942421 - Enable H265 on Windows

Comment 2

[C.M.Chang[:chunmin]]

Attachment: Bug 1942421 - Apply mozilla patches for libvpx

Apply mozilla patches by running

./mach vendor media/libvpx/moz.yaml --patch-mode=only

Depends on D235035

Comment 3

[Phabricator Automation]

Comment on attachment 9460798 [details]
Bug 1942421 - Apply mozilla patches for libvpx

Revision D235036 was moved to bug 1940889. Setting attachment 9460798 [details] to obsolete.

Comment 4

[C.M.Chang[:chunmin]]

The low-latency setting doesn't work as expected for now. Currently, while the low-latency is set successfully in WMFVideoMFTManager::InitInternal, the output is not produced immediately after feeding an input data (for H264, it works). I'll need to check what is missing. Notably, the first WMFVideoMFTManager::Output call always return MF_E_TRANSFORM_STREAM_CHANGE. Not sure if it can be a hint to this issue.

Comment 5

[[:anutrix]]

What's the blocker for this now that support was merged on Linux?