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?
>
> 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-browser/chromium/chromium-ozone-wayland/force-h264-youtube/force_h264.js
> > create mode 100644
> > meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-browser/chromium/chromium-ozone-wayland/force-h264-youtube/manifest.json
> >
> > diff --git
> > a/meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-browser/chromium/chromium-ozone-wayland-arago.inc
> >
> > b/meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-browser/chromium/chromium-ozone-wayland-arago.inc
> > index ab092fa1..d8eb0204 100644
> > ---
> > a/meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-browser/chromium/chromium-ozone-wayland-arago.inc
> > +++
> > b/meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-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-.patch \
> > + 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-browser/chromium/chromium-ozone-wayland/force-h264-youtube/force_h264.js
> >
> > b/meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-browser/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/recipes-browser/chromium/chromium-ozone-wayland/force-h264-youtube/force_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-browser/chromium/chromium-ozone-wayland/force-h264-youtube/manifest.json
> >
> > b/meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-browser/chromium/chromium-ozone-wayland/force-h264-youtube/manifest.json
> > new file mode 100644
> > index 00000000..fc69be22
> > --- /dev/null
> > +++
> > b/meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-browser/chromium/chromium-ozone-wayland/force-h264-youtube/manifest.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
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