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
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
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