1643410 - Support Widevine CDM output that uses non-420 subsampling and 10+ depth

Status: RESOLVED FIXED

(Core :: Audio/Video: Playback, enhancement, P3)

Description

[Bryce Seager van Dyk [:bryce] (he/him) - Not reading bugmail]

The code that we use to create frames from the CDM output appears to assume 420 style subsampling (the chroma planes are always half the width and height of the luma). We should check the format of the data coming back from the CDM and use that to determine the dimension of the planes.

Similarly, the format may indicate bit depths that are not 8, so we need to handle these additional depths (9, 10, 12 at time of writing)

Comment 1

[Bryce Seager van Dyk [:bryce] (he/him) - Not reading bugmail]

We're not doing 9 bit depth because we don't expect it to be used in the wild. Change title to reflect that.

Comment 2

[Bryce Seager van Dyk [:bryce] (he/him) - Not reading bugmail]

Attachment: Bug 1643410 - Teach ChromiumCDMParent about different different bits per pixel.

Comment 3

[Chris Peterson [:cpeterson]]

Unassigning bugs assigned to Bryce because he no longer works at Mozilla.

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/e4557e65b6c5
Teach ChromiumCDMParent about different different bits per pixel. r=media-playback-reviewers,alwu

Comment 5

[Narcis Beleuzu [:NarcisB]]

https://hg.mozilla.org/mozilla-central/rev/e4557e65b6c5