Raspberry Pi

Add widevine DRM libraries to raspbery Pi Browser (Chromium)

Installing RTAndroid onto Pi3

I needed Chrome on my system to allow me to run Amazon Prime (Chromium doesn't seem to be supported anymore)

Based on this video

[Windows System]

Create a Linux environment to install RTAndroid onto SD card.

Assumes VirtualBox is already installed.

• 1. Insert SD card (NOTE: this card will be formatted; all existing data on it will be lost)

  2. Start command prompt with admin priviledges

     1. Windows 7: search for cmd, CTRL-SHIFT-ENTER to launch

     2. Windows 8: search for cmd, right click cmd and "run as administrator"

  3. From the cmd prompt, identify the SD card USB drive mounted on your Windows system:

• • • Run this command

      • wmic diskdrive list > drives.txt

    • Open drives.txt in a text editor

    • Identify the 'Name' of the SD card drive e.g. \\.\PHYSICALDRIVE2

    • DANGER: Choosing the wrong drive could result in reformatting you main drive.

    • Be very sure you have the right drive!

• 4. Create a VMDK device file for the SD Card:

• • 1. cd to working directory where you want the VMDK file to be created.

    2. VBoxManage internalcommands createrawvmdk -filename MySSDDisk.vmdk -rawdisk \\.\PHYSICALDRIVE2

• 5. Launch VirtualBox as administrator:

• • 1. Windows 7: search for VirtualBox, CTRL-SHIFT-ENTER to launch

    2. Windows 8: search for VirtualBox, right click cmd and "run as administrator"

1. Create a Linux environment in VirtualBox using Vagrant.

   1. 1. Script assumes VirtualBox and Vagrant are installed on Windows

• 1. Add the SD Card Disk to VM

     1. VM must be shutdown

     2. VM|Settings...|Storage|Storage Tree|Controller IDE

        1. Select "Add Hard Drive" Icon

        2. Select "Existing Device" and select the MySSDDisk.vmdk file created earlier

  2. Start VM and login

• • 1. root/vagrant

NOTE: The centos VM created by the vagrant file doesn't seems to allow login via putty.

SSH authentication seems to have been misconfigured. Haven't had time to figure out why.

[Linux System]

Create an SD device that can be mounted as a VBox drive.

• 1. Download the latest version of the RTAndroid image

     • NOTE: I had to look at the page source to get the url from the web page!

     • wget https://git.embedded.rwth-aachen.de/rtandroid/files/rtandroid-aosp-7.1-20161230-rpi3.zip

  2. Add tools:

     • yum install -y unzip dosfstools android-tools lzip

  3. unzip the file into it's own folder

     • mkdir ~root/rtandroid

     • cd ~/root/rtandroid

     • unzip ../rtandroid-*.zip

  4. check which device the sd card has been mounted on e.g. /dev/sdb:

     • fdisk -l

  5. run the install script (X = device identifier):

     • DANGER: Installing on the wrong device can lose your data.

     • ./install.sh -p -f /dev/sdb

  6. Shutdown the VM and eject SD Card

Start Android

If all goes well, transfer the SD Card to the Raspberry Pi 3 and boot up.

First boot can take some time.

Find the devices IP address in Settings| Android Info| Network(??)

Final Android install

Delete the SD Card device from the VM Storage devices and restart the VM.

• 1. Connect to Raspberry Pi and install the google apps

     • adb connect 192.168.2.13

     • cd ~/root/rtandroid

     • ./gapps.sh -i 192.168.2.13 -a arm

     • reconnect to WiFi after Rasberry Pi reboots (if using Wifi) and script will resume to completion

  2. Google Play is now available on the apps page.

After installing Amazon Apps, then Amazon Video, I can play Amazon Prime videos (using my own Prime membership), but the video is occasionally loosing sync (particularly when the camera shot changes).

I assume this is an issue with the video decoder? But I don't know enough about RTAndroid and how Amazon plays video to make any definite diagnosis.