M2-RDK Camera in RPI Reference Platform - EMS based Streaming User manual

Introduction

The EvoStream Media Server is much more than a multi-format, multi-protocol server that delivers your media rich content across multiple screens and platforms. The RDK camera software runs on RPi-0 device. This page dedicated to bringing up and validation of EMS functionality in R-Pi Zero. 

Required Equipment

• Raspberry Pi 0 Device
• SD Card
• Power Cable
• OTG Cable
• Standard USB keyboard
• Mini HDMI connector
• HDMI Cable
• Television set/monitor with HDMI input

System Setup

Please refer below link for RPI-0 Environment setup

EMS Flow - Environment Setup Diagram

Build Procedure

$ repo init -u "https://code.rdkcentral.com/r/rdkcmf/manifests" -m rdkc-nosrc.xml -b master

$ repo sync

$ source meta-cmf-raspberrypi/setup-environment

select meta-cmf-raspberrypi/conf/machine/raspberrypi0-rdk-camera.conf

$ bitbake rdk-generic-camera-image

Image Flash Procedure

$ sudo dd if="Image Name" of="Device Name" bs=4M

Example:

sudo dd if=rdk-generic-camera-image_default_20200130060729.rootfs.rpi-sdimg of=/dev/sdb bs=4M

EMS Validation Procedure

STEP 1:

Add require SSID and PSK in /etc/wpa_supplicant.conf file in below format

network={

ssid="username"

psk="password"

}

STEP 2:

Reboot the Target

After Reboot don't do step 1 and 2.

Note : Step 1 & 2 is only applicable for fresh target boot-up with new image.

STEP 3:

Modify needed resolution in ems configuration file

Supported Resolution:

SD:

Width - 640 , Height - 480

Width - 720 , Height - 576

HD:

Width - 1280 , Height - 720

FULL HD  :

Width - 1920 , Height - 1080

Modify resolution in below configuration file

cd /usr/bin/evo/bin

vi ems.conf

After resolution modification need to reboot the target.

Note: This step is not necessary,it is depends on your resolution validation.

STEP 4:

WiFi connection is must needed for EMS validation.

Check WiFi connection by using below command.

ifconfig

STEP 5:

check loaded module by using below command

lsmod

STEP 6:

check camera device there or not by using below command

ls /dev/video0

STEP 7:

On Bowser of PC:
http://dh-livevid-dev.comcast.com/bryan/demov3/evoplayersTest.html
Need to modify roomid as rpi0

Press "PLAY" button in WebBrowser page.

We can able to see the capturing content on WebBrowser.