1803699 - `Codec Support Information` tab is wrong or missing on MacOS

Status: RESOLVED FIXED

(Core :: Audio/Video: Playback, defect, P2)

Description

[Alastor Wu [:alwu]]

On my MacBook Pro M1 Max, OS 12.2, when opening about:support, the Codec Support Information part is incorrect.

On my Firefox Release 107, I can't see Codec Support Information tab in about:support. On my Nightly 109, I can see Codec Support Information, but its content is wrong. I have H264 HW in this laptop, but it only shows supporting H264 SW.

Comment 1

[Alastor Wu [:alwu]]

Attachment: about:support for Firefox Release 107

Comment 2

[Alastor Wu [:alwu]]

Attachment: about:support for Nightly 109

Comment 3

[az [:az]]

Thanks, will take a look at this.

Comment 4

[az [:az]]

Updating to note that it looks like we've had two other bugs tangentially related to checking the kVTDecompressionPropertyKey_UsingHardwareAcceleratedVideoDecoder property with VTSessionCopyProperty, M1 Macs in particular, and this call is used to determine whether or not HW decode is supported here. Some relevant comments from the other bugs are this comment and this one. I'll see if I can find a solution.

Comment 5

[az [:az]]

Would you be able to verify whether this issue still persists?

Comment 6

[Alastor Wu [:alwu]]

This issue is fixed on the latest Nightly, close this bug.