Raspberry Pi啟用Hardware Accelerated Video Decode

經測試Chromium92_armhf版起已經無法正常啟用影片硬體解碼，
須解除後重新安裝舊版恢復，終端指令參考如下。

官方來源

wget http://ftp.debian.org/debian/pool/main/c/chromium/chromium-common_89.0.4389.114-1~deb10u1_armhf.deb && wget http://ftp.debian.org/debian/pool/main/c/chromium/chromium-driver_89.0.4389.114-1~deb10u1_armhf.deb && wget http://ftp.debian.org/debian/pool/main/c/chromium/chromium-l10n_89.0.4389.114-1~deb10u1_all.deb && wget http://ftp.debian.org/debian/pool/main/c/chromium/chromium-sandbox_89.0.4389.114-1~deb10u1_armhf.deb && wget http://ftp.debian.org/debian/pool/main/c/chromium/chromium-shell_89.0.4389.114-1~deb10u1_armhf.deb && wget http://ftp.debian.org/debian/pool/main/c/chromium/chromium_89.0.4389.114-1~deb10u1_armhf.deb   && sudo apt autoremove chromium -y && sudo apt install ./chromium-common_89.0.4389.114-1~deb10u1_armhf.deb ./chromium-driver_89.0.4389.114-1~deb10u1_armhf.deb ./chromium-l10n_89.0.4389.114-1~deb10u1_all.deb ./chromium-sandbox_89.0.4389.114-1~deb10u1_armhf.deb ./chromium-shell_89.0.4389.114-1~deb10u1_armhf.deb ./chromium_89.0.4389.114-1~deb10u1_armhf.deb -y

備份來源(與官方來源擇一使用)

wget http://mit.eca.party/debian_raspberry_chromium90/chromium-common_89.0.4389.114-1_deb10u1_armhf.deb && wget http://mit.eca.party/debian_raspberry_chromium90/chromium-driver_89.0.4389.114-1_deb10u1_armhf.deb && wget http://mit.eca.party/debian_raspberry_chromium90/chromium-l10n_89.0.4389.114-1_deb10u1_all.deb && wget http://mit.eca.party/debian_raspberry_chromium90/chromium-sandbox_89.0.4389.114-1_deb10u1_armhf.deb && wget http://mit.eca.party/debian_raspberry_chromium90/chromium-shell_89.0.4389.114-1_deb10u1_armhf.deb && wget http://mit.eca.party/debian_raspberry_chromium90/chromium_89.0.4389.114-1_deb10u1_armhf.deb   && sudo apt autoremove chromium -y && sudo apt install ./chromium-common_89.0.4389.114-1_deb10u1_armhf.deb ./chromium-driver_89.0.4389.114-1_deb10u1_armhf.deb ./chromium-l10n_89.0.4389.114-1_deb10u1_all.deb ./chromium-sandbox_89.0.4389.114-1_deb10u1_armhf.deb ./chromium-shell_89.0.4389.114-1_deb10u1_armhf.deb ./chromium_89.0.4389.114-1_deb10u1_armhf.deb -y

啟用硬體加速方法如下：

網址列鍵入

chrome://flags

打開Chrome開發工具，接著分別檢索下列功能並啟用

chrome://flags/#ignore-gpu-blocklist

chrome://flags/#enable-accelerated-video-decode

chrome://flags/#enable-gpu-rasterization

最後網址列鍵入

chrome://gpu

確認Video Decode項目是否為Hardware accelerated。

如觀看影片出現畫面撕裂等情形，
可於終端機鍵入

sudo raspi-config

前往 Advanced Options > GL Driver

選取 GL (Fake KMS) OpenGL desktop driver with fake KMS

前往 Performance Options > GPU Memory

輸入 128或144 (注意這裡單位是MB，會用掉對應的RAM空間)

前往 Advanced Options > Compositor > xcompmgr composition manager

選擇 No，退出raspi-config重啟裝置。

參考資料

Chromium來源 https://snapshot.debian.org/package/chromium/

Chromium啟用硬體加速 https://www.linuxuprising.com

https://lemariva.com/blog/2020/08/raspberry-pi-4-video-acceleration-decode-chromium