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Large Scale WebRTC Broadcast

The Problem

WebRTC is a protocol that has been standardized in recent years among major browsers like Chrome, Firefox, Opera and the Android Browsers. Plugins/Native Implementations are available on IE/Edge/Safari and iOS/Android basically providing a relatively global protocol for real time media streams. However WebRTC is a P2P protocol which means that if a user wishes to broadcast his/her video to multiple users he/she needs to individually send that broadcast to each participant. This works on a small scale, but degrades quickly on a large scale due to bandwidth deterioration.

The Solution

One possible solution is to let the user stream his/her media to a server and the server in turn splits the media streams to the subscribers. There are two technical ways to do this. A Selective Forwarding Unit (SFU) which simply forwards streams, and a Multipoint Control Unit (MCU) which essentially does the same thing but lowers bandwidth usage by packaging streams together.

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import requests

HOST = "http://localhost:3000"

ADMIN_USERNAME = "jpopesculian"
ADMIN_PASS = "password"

NUM_USERS = 500
NUM_ROOMS = 2

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To run the export from CPS use bash export and to run the import to CPS use bash import

To configure, you can use the the variables:

• DATA_DIR: the output/input directory for the exported/imported session files
• CPS_HOST: the hostname (and optional port) for the running CPS you would like to import/export from

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Setup

To setup, first create a virtual env

python3 -m virtualenv venv

activate the virtual env

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help:
	@echo "View README for more info"
.PHONY: help

# SGX Driver

sgx-driver: install-sgx-driver sign-sgx-driver

install-sgx-driver:
	curl -s https://download.01.org/intel-sgx/latest/linux-latest/distro/ubuntu20.04-server/driver_readme.txt | awk '{ print $$3 }' |  grep -v "^#\|^$$" | head -n 1 | awk '{print "https://download.01.org/intel-sgx/latest/linux-latest/distro/ubuntu20.04-server/"$$1}' | xargs curl -o /tmp/install-sgx-driver

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CC=gcc

ZENDIR =../zenroom/src
LIBS=-lm -lpthread -lzenroom-x86_64
CFLAGS := -I$(ZENDIR) -L$(ZENDIR) -Wl,-rpath=$(ZENDIR) $(LIBS)

OBJ = main.o
BIN = main

$(BIN): $(OBJ)

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#!/bin/sh

set -xe

rm -rf generated/
mkdir -p generated/

openssl ecparam -name prime256v1 -out generated/nistp256.pem
openssl ecparam -name secp384r1 -out generated/nistp384.pem

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py_sgx_utils-0.1.0-py2.py3-none-linux_x86_64.whl
Pipfile

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node_modules
.env

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[Unit]
Description=Github Service

[Service]
Type=simple
WorkingDirectory=/home/demo/ci-scone/actions-runner/
ExecStart=/bin/bash run.sh
User=demo

[Install]