Package: chromium
Severity: wishlist
On Fri, May 20, 2022 at 06:42, Eschenbacher.Stefan
<[email protected]> wrote:
Dear Debian Chromium Team,
I am testing Debian Testing/Bookworm ARM64 with a NXP i.MX8MM board
and Kernel 5.17. I try to use the new stateless v4l2 Linux API for
video acceleration. The i.MX8MM has ha Hantro G1 and G2 stateless
VPU. The VPU runs nice with Gstreamer 1.20 from Debian Testing
/Bookworm if I use the following syntax:
gst-launch-1.0 filesrc
location=~/Downloads/mixkit_night_tour_through_the_streets_of_a_big_city_40747_1_c18d1a09b3.mp4
! parsebin ! v4l2slh264dec ! waylandsink
According to this link Chromium supports the new v4l2 request API for
stateless VPUs as well:
Enabling V4L2 Driver in Chromium Builds (google.com)
<https://groups.google.com/a/chromium.org/g/chromium-dev/c/JUKeQBTG85w>
The following build flag must be set to enable it:
“use_v4l2_codec=true”
I have taken a look into “rules” file of
http://deb.debian.org/debian/pool/main/c/chromium/chromium_101.0.4951.64-1.debian.tar.xz
<http://deb.debian.org/debian/pool/main/c/chromium/chromium_101.0.4951.64-1.debian.tar.xz>.
There is no “use_v4l2_codec=true” entry. Is this flag set in
another location? If I run Chromium 101 from Debian Testing with
“--enable-features=VaapiVideoDecoder”chrome://gpu shows “Video
decode=hardware accelerated” but CPU usage is still high. Could you
add this flag in the future?
Mit freundlichen Grüßen / Kind Regards
* *
*Stefan Eschenbacher*–Test Engineer
Scheidt & Bachmann GmbH
Quality Assurance
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