Overview

To validate lightning refapp on rdk 4.0 (rdk-generic-hybrid-image-raspberrypi) along with video playback, need to do some necessary code customizations/modifications in lightning refapp side for media video player implementation provided by lightning-sdk framework and rdk library side for variable setting and url configurations.

Please follow the below instructions to validate lightning refapp on rdk-generic-hybrid-image.

Prerequisites

Before you follow the steps below, make sure you have installed all the required prerequisites in your dev PC - Node.js , npm, Lightning-CLI

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reference image for Lightning-CLI install

Build instructions

• Create Lightning refapp dev build

  1. pull code from source repo using below command

     Code Block
     $ git clone https://github.com/naseemshekh20/refapp.git

     
     

  2. goto refapp directory

     Code Block
     $ cd refapp

     
     

  3. checkout to branch refapp-vid-playback-validation-on-rdk-4.0

     Code Block
     $ git checkout refapp-vid-playback-validation-on-rdk-4.0

     
     

  4. install the NPM dependencies by running below command

     Code Block
     $ npm install

     
     

  5. run copyAssets.sh command to create static folder and copy images, json files etc

     Code Block
     $./copyAssets.sh

     
     

  6.  run below command for testing in browser 

     Code Block
     $ lng dev

     
     

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reference images for build instructions-4

Running refapp

by default vscode launch generated url on chrome browser in dev pc.

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reference image for running app on browser

• Pre-build refapp code

Download customized pre-build refapp code which has lightning sdk video player integrated: build.zip

(or)

• Create dist (build)

  • run below command to make build.

$ lng dist

Image Modified

reference image for dist creation

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• Pre-build refapp code

Download customized pre-build refapp code which has lightning sdk video player integrated: build.zip

Hosting Lighting refapp

1. copy the lighting build app from dist folder.
2. host build folder into any http server.
3. test the hosted application on browser 

Lighting refapp integration 

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• Pre-build rdk-generic-hybrid-image-raspberrypi image

Download pre-build rdk-generic-hybrid-image-raspberrypi image from here: rdk-generic-hybrid-image-raspberrypi-rdk-hybrid.zip

(or)

• Build

  To build 

  rdk-generic-hybrid-image-raspberrypi follow below instructions

Code Block
$ repo init -u https://code.rdkcentral.com/r/manifests -b yocto-dunfell-upgrade -m rdkv-nosrc.xml $ repo sync -j4 --no-clone-bundle $ MACHINE=raspberrypi-rdk-hybrid source meta-cmf-raspberrypi/setup-environment $ bitbake rdk-generic-hybrid-image

or 

• Pre-build rdk-generic-hybrid-image-raspberrypi image

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rdk-generic-hybrid-image

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• Flash

  the

  image on the SD

  card

  card 

  • Execute the following command to flash the image on the SD card

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Code Block
# sudo dd if=<r-pi sdimg> of=<SD card device> bs=1M     for ex: # sudo dd if=rdk-mc-rpi.sdimg of=/dev/sdb bs=1M

(or 
Download)

Windows user can download and install Balena Etcher to write the Raspberry Pi SD card: https://www.balena.io/etcher/

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• Lighting refapp integration into rdk-generic-hybrid-image-raspberrypi

• • Method 1:

1. login into raspberrypi and change directory:

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Code Block
$ ssh root@<<IP address>> # after login into box $ cd /lib/rdk/

 

2. add startup_app_conf variable into variable into referenceApp.sh config file, if referenceApp.sh file is not available in /lib/rdk then refer method 2 below to validate refapp.

Code Block
startup_app_conf=/opt/residentapp.conf

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Code Block
url="http://192.168.0.106:8080/" echo $url

       

4. replace exting url https://px-apps.sys.comcast.net/lightning_apps/SwitcherApp/dist/index.html in /opt/residentapp.conf with lighting app url which is hosted on server

for        for example your server providing url url http://192.168.56.1:8080

     

5. reboot the box 

     

• Method 2:

Validated on rdk-generic-hybrid-wpe-image_rdk-next image, download image link: https://drive.google.com/file/d/1_VgFDk_lRWLoMwv0JKQrZ4HUifN-F6Qa/view?usp=sharing

step 1: login to box $ ssh root@<your box ip>

step 2: copy refapp build into /opt/www

step3: $ cd /lib/rdk

step 4: $ vi residentApp.sh

step 5: configure refapp url into residentApp.sh > find in residentApp.sh line "offlineApp="http://127.0.0.1:50050/lxresui/index.html" and replace with refapp url, Example: "offlineApp="http://127.0.0.1:50050/refapp/index.html"

Note: if you are downloading prebuild refapp from download link: build.zip after extract you will see build/build/<files>, you can copy build folder as it is and in this case url will be "offlineApp="http://127.0.0.1:50050/build/build/index.html".

step 6: After reboot app come up with a splash screen. Lighting application will launch instead of switcher app. Main menu screen is displayed which allows users to launch apps, vod, and play video content.

RefApp Video Playback

• RDK 4.0 (rdk-generic-hybrid-image) Vs LGI  RefApp (rdk-generic-hybrid-refapp-image)

Dependencies

• Lightning RefApp on 

  Accelerator

  RDK 4.0

  • Uses lighting sdk media player to play video, verified video playback using mp4 and HLS streams. 
  • Tested mp4 source: http://clips-media-aka.warnermediacdn.com/cnn/clips/2021-01/79895-97f21462b4db4236abcbd68a581[…]remarks-vpx-primary-58581-79895-1920x1080_8000k.mp4 
  • Tested hls source: //cdn.metrological.com/hls/greenland720.m3u8
  • Lightning (a javascript TV app development framework) refapp is a web based app, which runs on browser (supports WebGL). To run this wpe framwork or rdkbrowser2 is required.
  • sessionmanager, rmfstreamer, spark environment, nodejs and LGI based IP player not required.

• Lightning RefApp

  on rdk

  on Operator reference image (rdk-generic-hybrid-refapp-image)

  • uses various native RDK components such as spark, 
  • uses rmfstreamer with sessionmanager and spark environment to play , IP players (aamp and Liberty IPplayer) to play QAM source, IP video streams (hls/dash) using (aamp and Liberty IPplayer).

 Reference Video