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 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

Create dist (build)

• run below command to make build.

$ lng dist

Image Modified

reference image for dist creation

Or 

• 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 

• To build rdk-generic-hybrid-image-raspberrypi follow below instructions

$ 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

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

• Flash the image on the SD card

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

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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

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

 Reference Video