On Tue, Jun 9, 2026 at 2:25 PM Lannynd, Thorsten <[email protected]> wrote:
> On 6/9/26 12:52 PM, Jon Cormier via lists.yoctoproject.org wrote: > > On Tue, Jun 9, 2026 at 1:43 PM Denys Dmytriyenko via > lists.yoctoproject.org > > <[email protected]> wrote: > > > > > > On Tue, Jun 09, 2026 at 12:13:06PM -0500, Thorsten Lannynd via > > lists.yoctoproject.org wrote: > > > > Install a lightweight Chrome extension that forces YouTube to serve > > > > H.264 (avc1) by blocking VP8, VP9, and AV1 via > > MediaSource.isTypeSupported. > > > > This enables Wave5 hardware video decoding on YouTube, which only > > > > supports > > > > H.264 and HEVC. > > > > > > > > Installed at /usr/lib/chromium/extensions/force-h264-youtube > > > > and --load-extension flag is needed to enable the extension. > > > > > > > > Signed-off-by: Thorsten Lannynd <[email protected]> > > > > --- > > > > v2: > > > > - Remove the flag that enables extension by default as not all SoCs > support > > > > Wave5 and Chromium > > Why would disabling this extension help? Does this mean there are some > SoCs > > which do support VP8, VP9, and AV1? Or if using CPU, decode those better > > than h.264? > H.264 and HEVC are the only codecs with hardware acceleration, however, we > have one SoC that supports Chromium with no hardware video decoder. > > Not enabling the extension gives the user control over what codec YouTube > Is serving. I found the CPU utilization results to be roughly around the > same, > at 480p 30 fps when using S/W acceleration for AV1 and H.264 with > significant playback stutters. > Alright thanks thats useful information. I had recently been testing the AM62A with youtube and was talking to a coworker about this extension. So glad to see it pop up here serendipitously. > > > > > > > This is also fine, though requires enabling it manually... > > > > > > > > > > > > > > > .../chromium/chromium-ozone-wayland-arago.inc | 13 +++++++++++++ > > > > .../force-h264-youtube/force_h264.js | 4 ++++ > > > > .../force-h264-youtube/manifest.json | 19 > +++++++++++++++++++ > > > > 3 files changed, 36 insertions(+) > > > > create mode 100644 > > > > meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-brow > > > > ser/chromium/chromium-ozone-wayland/force-h264-youtube/force_h264.js > > > > create mode 100644 > > > > meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-brow > > > > ser/chromium/chromium-ozone-wayland/force-h264-youtube/manifest.json > > > > > > > > diff --git > > > > a/meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-br > > > > owser/chromium/chromium-ozone-wayland-arago.inc > > > > b/meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-br > > > > owser/chromium/chromium-ozone-wayland-arago.inc > > > > index ab092fa1..d8eb0204 100644 > > > > --- > > > > a/meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-br > > > > owser/chromium/chromium-ozone-wayland-arago.inc > > > > +++ b/meta-arago-distro/dynamic-layers/chromium-browser-layer/recipe > > > > +++ s-browser/chromium/chromium-ozone-wayland-arago.inc > > > > @@ -1,5 +1,7 @@ > > > > PR:append = ".arago0" > > > > > > > > +EXTENSION_DIR = "/usr/lib/chromium/extensions/force-h264-youtube" > > > > + > > > > FILESEXTRAPATHS:prepend := "${THISDIR}/chromium-ozone-wayland:" > > > > > > > > PACKAGECONFIG:append = " proprietary-codecs" > > > > @@ -9,4 +11,15 @@ SRC_URI:append = " \ > > > > > file://0002-chromium-gpu-sandbox-Allow-GPU-sandbox-access- > > to-V4L.patch \ > > > > > file://0003-chromium-gpu-v4l2-Fix-OUTPUT-queue-streaming-in- > > V4L2.patch \ > > > > > > > > file://0004-media-gpu-v4l2-Avoid-placing-incomplete-H264-access-.pat > > > > ch \ > > > > + file://force-h264-youtube/force_h264.js \ > > > > + file://force-h264-youtube/manifest.json \ > > > > " > > > > + > > > > +do_install:append() { > > > > + install -d ${D}${EXTENSION_DIR} > > > > + install -m 0644 > ${WORKDIR}/sources/force-h264-youtube/force_h264.js > > \ > > > > + > ${WORKDIR}/sources/force-h264-youtube/manifest.json \ > > > > + ${D}${EXTENSION_DIR}/ } > > > > + > > > > +FILES:${PN}:append = " ${EXTENSION_DIR}" > > > > diff --git > > > > a/meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-br > > > > owser/chromium/chromium-ozone-wayland/force-h264- > > youtube/force_h264. > > > > js > > > > b/meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-br > > > > owser/chromium/chromium-ozone-wayland/force-h264- > > youtube/force_h264. > > > > js > > > > new file mode 100644 > > > > index 00000000..5e942321 > > > > --- /dev/null > > > > +++ b/meta-arago-distro/dynamic-layers/chromium-browser-layer/recipe > > > > +++ s-browser/chromium/chromium-ozone-wayland/force-h264- > > youtube/for > > > > +++ ce_h264.js > > > > @@ -0,0 +1,4 @@ > > > > +(function() { > > > > + var orig = MediaSource.isTypeSupported.bind(MediaSource); > > > > + MediaSource.isTypeSupported = function(t) { return > > > > +/vp8|vp09?|av01/i.test(t) ? false : orig(t); }; })(); > > > > diff --git > > > > a/meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-br > > > > owser/chromium/chromium-ozone-wayland/force-h264- > > youtube/manifest.js > > > > on > > > > b/meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-br > > > > owser/chromium/chromium-ozone-wayland/force-h264- > > youtube/manifest.js > > > > on > > > > new file mode 100644 > > > > index 00000000..fc69be22 > > > > --- /dev/null > > > > +++ b/meta-arago-distro/dynamic-layers/chromium-browser-layer/recipe > > > > +++ s-browser/chromium/chromium-ozone-wayland/force-h264- > > youtube/man > > > > +++ ifest.json > > > > @@ -0,0 +1,19 @@ > > > > +{ > > > > + "manifest_version": 3, > > > > + "name": "Force H.264", > > > > + "version": "1.0.0", > > > > + "description": "Lightweight extension that forces YouTube to play > > > > +H.264 (avc1) by blocking VP8, VP9, and AV1", > > > > + "content_scripts": [ > > > > + { > > > > + "matches": [ > > > > + "*://*.youtube.com/*", > > > > + "*://*.youtube-nocookie.com/*", > > > > + "*://*.youtu.be/*" > > > > + ], > > > > + "js": ["force_h264.js"], > > > > + "run_at": "document_start", > > > > + "world": "MAIN", > > > > + "all_frames": true > > > > + } > > > > + ] > > > > +} > > > > -- > > > > 2.34.1 > > > > > > > > > > > > > > > > > > > > > -- > > Jonathan Cormier > > Senior Software Engineer > > > > Office: 315.425.4045 x222 > > > > http://www.CriticalLink.com > > 6712 Brooklawn Parkway, Syracuse, NY 13211 > -- Jonathan Cormier Senior Software Engineer Office: 315.425.4045 x222 http://www.CriticalLink.com <http://www.criticallink.com/> 6712 Brooklawn Parkway, Syracuse, NY 13211 -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. 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