On Wed, Jul 24, 2024 at 03:15:55PM +0000, Lucas Gabriel Vuotto wrote:
> On Wed, Jul 24, 2024 at 07:59:23AM GMT, Rafael Sadowski wrote:
> > On Sun Jul 21, 2024 at 04:58:15PM GMT, Lucas Gabriel Vuotto wrote:
> > > On Sat, Jul 20, 2024 at 11:32:29AM GMT, Rafael Sadowski wrote:
> > > > OK to enable VA-API? It only depends on xenocara libva. Since libva
> > > > builds on almost all arches, I see no reason to restrict it by CPU
> > > > architectures any further.
> > > 
> > > This worked well with mpv but is giving me issues in Firefox:
> > 
> > I can confirm that it works well with mpv(1) but not in ff. In my last
> > test I only tested WebGL and simple youtube stuff.
> > 
> > I have not noticed taht playing youtube run on my CPU. That's because up
> > to 1080p60 always runs smoothly. But 2160p60 is the end of the line
> > here.
> > 
> > What I cannot confirm, any disadvantages with enabling or disabling
> > VAAPI.
> 
> Did you try Twitch? It indeed stops working ,and I wouldn't consider it
> as niche as viewing YouTube thru Invidious (OT: I believe it's becoming
> less and less niche.)
> 
> > > 
> > > - Invidious instances (YouTube alternative frontend) give me "No
> > >   compatible source was found for this media"
> > > - Twitch gives a similar message
> > > - Couldn't test in YouTube because it thinks I'm a bot
> > 
> > WTF!
> 
> It doesn't like my VPS provider. After connecting from my home, I saw
> the same thing as you: it runs on the CPU.
> 
> > > - Some meme pages show webms just fine
> > 
> > I don't see it, I'll test it with a new profile. Can you give me a test
> > example?
> 
> https://9gag.com/gag/avynegn
> https://9gag.com/gag/amoz10j
> 
> Raw media links:
> 
> https://img-9gag-fun.9cache.com/photo/amoz10j_460svvp9.webm (VP9)
> https://img-9gag-fun.9cache.com/photo/avynegn_460svav1.mp4 (AV1)
> 
> According to about:support, both VP9 and AV1 decoding are supported
> (tried with the Tiger Lake, i7-1165G7, Intel iRIS Xe-LP).
> 
> Downloading the video and playing it with MPV works wonders. Playing it
> in Firefox makes the CPU usage raise. Enabling
> media.ffmpeg.vaapi.enabled made no difference, even after a restart.
> 
> Basically, it seems that having an VA-API enabled ffmpeg doesn't make
> a difference in Firefox right now.
> 

If it's only about enabling va-api in ffmpeg without breaking the sites
and links above in firefox, I think a patch to firefox's unveil.utility
adding '/usr/X11R6/lib r' would enough.


There are numerous issues that will need to be fixed before va-api in
firefox will actually work. Some of them are pledge/unveil related,
others are firefox hardcoding specific library versions for dlopen
without fallback.

With the symlinks below and various additions to pledge and unveil,
I get sound to play in what looks like hardware decoded video.
Unfortunately, the player remains dark...

I also frobbed a few knobs in about:config, but I don't exactly remember
what. setting media.ffmpeg.vaapi.enabled to true and gfx.webrender.all
are a good start.

Studying the output of env MOZ_LOG="FFmpegVideo:5, Dmabuf:5" firefox
helps.

$ ls -al /usr/X11R6/lib | grep @
lrwxr-xr-x  1 root  bin           9 Jul 26 05:41 libXaw.a@ -> libXaw7.a
lrwxr-xr-x  1 root  bin          15 Jul 26 05:41 libXaw.so.16.0@ -> libXaw7.so.16.0
lrwxr-xr-x  1 root  wheel        29 Jul 25 12:59 libdrm.so@ -> /usr/X11R6/lib/libdrm.so.7.13
lrwxr-xr-x  1 root  wheel        29 Jul 26 14:21 libdrm.so.2@ -> /usr/X11R6/lib/libdrm.so.7.13
lrwxr-xr-x  1 root  wheel        28 Jul 25 12:59 libgbm.so@ -> /usr/X11R6/lib/libgbm.so.0.6
lrwxr-xr-x  1 root  wheel        28 Jul 26 12:19 libgbm.so.1@ -> /usr/X11R6/lib/libgbm.so.0.6
lrwxr-xr-x  1 root  wheel        32 Jul 24 21:21 libva-drm.so.2@ -> /usr/X11R6/lib/libva-drm.so.2.22
lrwxr-xr-x  1 root  wheel        28 Jul 24 21:21 libva.so.2@ -> /usr/X11R6/lib/libva.so.2.22
Only in /usr/local/lib/firefox/browser/defaults/preferences: all-openbsd.js
diff -pu -r /usr/local/lib/firefox/browser/defaults/preferences/pledge.rdd /etc/firefox/pledge.rdd
--- /usr/local/lib/firefox/browser/defaults/preferences/pledge.rdd	Thu Jul 25 14:54:59 2024
+++ /etc/firefox/pledge.rdd	Fri Jul 26 14:16:14 2024
@@ -1,6 +1,10 @@
 stdio
 rpath # gtk tries to access /usr/local/lib/gdk-pixbuf-2.0/2.10.0/loaders.cache
+wpath
+cpath
 tmppath
 recvfd
 sendfd
 unix # getsockopt
+drm
+prot_exec
diff -pu -r /usr/local/lib/firefox/browser/defaults/preferences/unveil.rdd /etc/firefox/unveil.rdd
--- /usr/local/lib/firefox/browser/defaults/preferences/unveil.rdd	Thu Jul 25 14:54:59 2024
+++ /etc/firefox/unveil.rdd	Fri Jul 26 14:07:14 2024
@@ -1,2 +1,8 @@
 # shm files
 /tmp rwc
+/dev/dri rw
+/usr/lib r
+/usr/X11R6/lib r
+/usr/local/lib r
+
+~/.Xauthority r
diff -pu -r /usr/local/lib/firefox/browser/defaults/preferences/unveil.utility /etc/firefox/unveil.utility
--- /usr/local/lib/firefox/browser/defaults/preferences/unveil.utility	Thu Jul 25 14:54:59 2024
+++ /etc/firefox/unveil.utility	Fri Jul 26 12:51:28 2024
@@ -1,3 +1,4 @@
 /usr/lib r
+/usr/X11R6/lib r
 /usr/local/lib r
 /tmp rwc