1200775 - Check intel specific h264 decoder when checking for DXVA support

Status: RESOLVED FIXED

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

Comment 1

[Matt Woodrow (:mattwoodrow)]

Attachment: intel-decoder

Seems like some of the older intel cards only support this one.

Comment 2

[Jean-Yves Avenard [:jya]]

Comment on attachment 8655595 [details] [diff] [review]
intel-decoder

Review of attachment 8655595 [details] [diff] [review]:
-----------------------------------------------------------------

LGTM, but I have no idea about why this is required nor how it would actually work.

"Seems like some of the older intel cards only support this one." what is "this one" ?

302 to cpearce

Comment 3

[Matt Woodrow (:mattwoodrow)]

It looks like older intel cards have a different GUID for their h264 decoder, but it otherwise functions identically. The MFTransform we are using to access the decoder will pick this one if the 'normal' one isn't available.

Our code for determining DXVA support was only checking the normal GUID, so we think DXVA isn't available when it would otherwise work through the MFTransform. This patch fixes that.

Comment 4

[Pulsebot]

https://hg.mozilla.org/integration/mozilla-inbound/rev/aa8cbb652d86

Comment 5

[Pulsebot]

https://hg.mozilla.org/integration/mozilla-inbound/rev/6f234301d1b8

Comment 6

[Carsten Book [:Tomcat]]

https://hg.mozilla.org/mozilla-central/rev/aa8cbb652d86
https://hg.mozilla.org/mozilla-central/rev/6f234301d1b8