MPEG-DASH Video Streaming Analysis

This repository contains the codebase for my thesis project, focusing on video streaming performance and network traffic analysis using MPEG-DASH within Software Defined Networks (SDN) simulated by Mininet.

🎥 Demo

🚀 Quick Start

Prerequisites

• Linux Environment (Arch Linux, Ubuntu, etc.)
• Bun (JavaScript runtime)
• Python 3
• Mininet
• Open vSwitch
• Chromium (Recommended, due to the absence of video.webkitVideoDecodedByteCount property in Firefox)

1. Start the Network Simulation

Run the Mininet topology script with sudo privileges. You can configure bandwidth, delay, and loss.

sudo python3 net_conf_mininet/thesis_mininet.py -bw 10 -delay 10ms -loss 0

2. Start the Streaming Server

Inside the Mininet CLI (mininet>), start the HTTP server on h1.

# Start server on host h1
h1 bun server_mininet/server_mininet.js &

3. Start the Client

Open a browser from another host (e.g., h2) to view the stream and analysis charts.

# Launch Chromium on host h2 (using local display)
h2 env DISPLAY=:1 chromium --no-sandbox --user-data-dir=/tmp/chromium_h2 http://10.0.0.1:1337/ &

📂 Project Structure

• net_conf_mininet/: Contains thesis_mininet.py, the Mininet topology script defining switches, hosts, and link constraints.
• server_mininet/: The main Node.js (Bun) server and DASH video client.
  • videos/: Contains the DASH .mpd manifests and .m4s segments.
  • videos/client/: The web client (client.js, dash.js, chart.js) for playback and metrics visualization.
• plot_and_stats/: Python scripts for generating plots and analyzing traffic statistics.
• statistics/: Output directory for generated statistics organized by network configuration.
• server_over_network_*: Server variants for AWS and University network deployment scenarios.

🛠️ Configuration

• Network Parameters: Adjust -bw (Bandwidth in Mbps), -delay (Latency), and -loss (Packet loss %) when running thesis_mininet.py.
• Video Generation: Use ffmpeg and MP4Box to generate new DASH content if needed (scripts available in server_mininet/videos/).