Re: [meta-arago][master/wrynose][PATCH] meta-arago-distro: chromium: add force-h264-youtube extension

On Tue, Jun 09, 2026 at 05:09:37PM +0000, Thorsten Lannynd via lists.yoctoproject.org wrote:
> On 6/9/26 1:22 AM, Yogesh Hedge via lists.yoctoproject.org wrote:
> > Hi Thorsten,
> > Thanks for the patch.
> > 
> > On 6/9/26 01:48, 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, without requiring a third-party extension to be
> > > manually installed through the Chrome Web Store before use.
> > >
> > > Installed at /usr/lib/chromium/extensions/force-h264-youtube
> > > and --load-extension is appended to the chromium-wrapper launch script.
> > >
> > > Signed-off-by: Thorsten Lannynd <[email protected]>
> > 
> > Is Wave5 hardware video decoding supported on all SoCs?
> > If not, please limit the patches to SoCs/machines that support it.

This will make Chromium package machine-specific. So, the same binary and 
shared state can't be re-used across different platforms of the same 
architecture, e.g. aarch64. You'd end up re-building Chromium for each 
platform individually. Chromium is already a beast and is taking forever to 
build.


> Thank you for the review. I will make the extension not enabled by default.
> The only platform that does not support Wave5 but supports Chromium is
> AM62x.

Can the extension be made as a separate machine-specific package and marked 
as not compatible with AM62x. I wonder if Chromium will run just fine when 
started with --load-extension passed to not existing extenstion. Otherwise 
some run-time check for it's presence can be made in the wrapper script...


> > > ---
> > >  .../chromium/chromium-ozone-wayland-arago.inc | 15 +++++++++++++++
> > >  .../force-h264-youtube/force_h264.js          |  4 ++++
> > >  .../force-h264-youtube/manifest.json          | 19 +++++++++++++++++++
> > >  3 files changed, 38 insertions(+)
> > >  create mode 100644
> > > meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-browse
> > > r/chromium/chromium-ozone-wayland/force-h264-youtube/force_h264.js
> > >  create mode 100644
> > > meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-browse
> > > r/chromium/chromium-ozone-wayland/force-h264-youtube/manifest.json
> > >
> > > diff --git
> > > a/meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-brow
> > > ser/chromium/chromium-ozone-wayland-arago.inc
> > > b/meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-brow
> > > ser/chromium/chromium-ozone-wayland-arago.inc
> > > index ab092fa1..14c12767 100644
> > > ---
> > > a/meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-brow
> > > ser/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 +11,17 @@ 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}/
> > > +    sed -i 's|--ozone-platform=wayland"|--ozone-platform=wayland --load-
> > extension=${EXTENSION_DIR}"|' \
> > > +            ${D}/usr/lib/chromium/chromium-wrapper
> > > +}
> > > +
> > > +FILES:${PN}:append = " ${EXTENSION_DIR}"
> > > diff --git
> > > a/meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-brow
> > > ser/chromium/chromium-ozone-wayland/force-h264-youtube/force_h264.js
> > > b/meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-brow
> > > ser/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_h
> > > +++ 264.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-brow
> > > ser/chromium/chromium-ozone-wayland/force-h264-youtube/manifest.json
> > > b/meta-arago-distro/dynamic-layers/chromium-browser-layer/recipes-brow
> > > ser/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/manifes
> > > +++ t.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
> > > +    }
> > > +  ]
> > > +}
> > 
> > ---
> > -- Yogesh Hegde