#Live Video Kit Thumbs Demo

This microservice is part of Live Video Kit (LVK). LVK helps stream live video in RTMP format LVK consists of 3 parts:

• LVK-server Based on nginx rtmp module
• LVK-client Has two adobe flash files (publisher.swf and player.swf)
• LVK-thumbs To make thumbnail for live streams

About

This microservice is used for uploading thumbnails from LVK-client (publisher).

LVK-thumbs consists of two parts:

• Uploader (nodejs application)
• Nginx

Usage

Call publisher API method from JS

takeScreenshot(uploadURL:String,
               jpgFile:String,
               token:String,
               width:int = 160,
               heigth:int = 120,
               customParam:String = null)

to make thumbnail from current publisher video. After thumbnail uploaded publisher fire "thumb_uploaded" event. Call getStatus() method to get thumbnail URL

#How to build and start container

• Clone this repo to /docker-data directory
• Go to project dir cd /docker-data/LVK-thumbs/
• Make file .dockerenv
• Set SECRET param in .dockerenv file
• Create file docker-compose.override.yml with following content:

nginx:
  ports:
     - "80:80"

and change exposed port if needed

• docker-compose up -d
• Check crossdomain URL /crossdomain.xml (need for flash player security policy) demo
• Check /upload URL (have to show LVK thumbs server info) demo
• Optional Set SERVICE_NAME variable in .dockerenv file to set unique service name

  environment:
    -  SERVICE_NAME=lvk_thumbs_0

GET params

publisher.swf sends 3 GET params:

• jpgFile - имя загружаемого файла
• token - md5(jpgFile + SECRET) SECRET - переменная окружения устанавливается в файле .dockerenv
• customParam - зарезервировано для передачи дополнительного параметра