media.hardware-video-decoding.force-enabled = true doesn't work




3 years ago
2 months ago


(Reporter: Virtual, Unassigned, NeedInfo)



47 Branch
Windows 7
Dependency tree / graph

Firefox Tracking Flags

(firefox47 affected, firefox48 affected, firefox49 affected)


After landing patches from bug #1242343, which blacklist msmpeg2vdec.dll, I wanted to force enable video hardware acceleration by setting to "true" this setting "media.hardware-video-decoding.force-enabled" in "about:config" and it didn't do a thing, as I still get "Supports Hardware H264 Decoding = No; Failed to create H264 decoder"
Priority: -- → P1
As soon as bug 1253395 lands, this bug here will become obsolete.
(But definitely something to keep in mind when working on alternate solution to the crashes that prompted bug 1242343.)
Depends on: 1253395
Your comment 0 led me to believe that you were only referring to the inability to prevent the msmpeg2vdec.dll blacklisting (from bug 1242343) through a pref -- which was indeed correct. But since that specific blacklisting is being reverted (bug 1253395), the non-working pref is moot in that case. I'll remove dependencies for these bugs.

Now if you're saying that "media.hardware-video-decoding.force-enabled" doesn't have the expected effect in other situations, then we should keep this bug open.
Though it would be nice to have a concrete list of things that don't work but (you think) should.
No longer blocks: 1254389
No longer depends on: 1253395
Component: Audio/Video → Audio/Video: Playback
I need to revisit this...
Probably not as important now that bug 1253395 has landed.
Flags: needinfo?(gsquelart)
Priority: P1 → P5
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