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* [meta-arago][master/wrynose][PATCH] meta-arago-distro: chromium: add force-h264-youtube extension
@ 2026-06-08 20:18 Thorsten Lannynd
  2026-06-08 20:38 ` PRC Automation
  2026-06-09  6:21 ` Yogesh Hegde
  0 siblings, 2 replies; 5+ messages in thread
From: Thorsten Lannynd @ 2026-06-08 20:18 UTC (permalink / raw)
  To: meta-arago, reatmon; +Cc: detheridge, b-brnich, a-christidis

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 <t-lannynd@ti.com>
---
 .../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-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..14c12767 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 +11,17 @@ 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-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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2026-06-08 20:18 [meta-arago][master/wrynose][PATCH] meta-arago-distro: chromium: add force-h264-youtube extension Thorsten Lannynd
2026-06-08 20:38 ` PRC Automation
2026-06-09  6:21 ` Yogesh Hegde
2026-06-09 17:09   ` Lannynd, Thorsten
2026-06-09 17:37     ` Denys Dmytriyenko

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