Course Outline
Media Devices Handling
Browser Permissions with navigator.permissions
- Hardware access:
- Webcam
- Microphone
- Optional permissions:
- Geolocation
- Notifications
- Clipboard (read/write)
- Querying permissions and checking status
- Limitations and browser compatibility considerations
Reading Media Devices with navigator.mediaDevices
- Enumerating devices
- Managing device changes
Cross-browser Compatibility
- API usage:
- navigator.permissions.query()
- navigator.mediaDevices.enumerateDevices()
- getUserMedia()
- Safari fallback strategies
Media Device Management
- Device initialization via getUserMedia(constraints)
- Configuring media device constraints
- Controlling media stream start and stop
- Responding to device changes
Recording Devices with MediaRecorder
- Initiating and terminating streaming and recording
- Downloading .webm files
- Generating real-time waveform previews
Optional Add-ons:
- Saving audio in .wav format using ScriptProcessorNode
- Visualizing audio FFT spectra
- Displaying volume bars in decibels
- Implementing voice recognition with webkitSpeechRecognition
Peer Connection
Signaling Servers
- Bidirectional channel options:
- WebSocket
- Socket.io
- SignalR
- Message structure design
- Building a simplified WebRTC client
- Complete signaling flow
Video Chat via WebRTC
- Architecture: Node.js + ws
- WebRTC client implementation: RTCPeerConnection
- Local end-to-end testing
Optional Features:
- Handling call hang-ups (closing connections, stopping media)
- Group calling (multi-user rooms)
- Simple token-based authentication
Screen Sharing
- Utilizing getDisplayMedia()
- Architectural considerations and options
Session Description Protocol (SDP)
- Overview and content structure
- Parsing and interpreting SDP
- Codecs:
- Audio & Video
- Negotiation and control mechanisms
- Fallback strategies
WebRTC Statistics with getStats()
- Categories of statistics
- Interpreting statistical data
- Visualizing live bitrate and jitter charts
- Strategies for quality adaptation
All of the topic are
- Hands-on use-case
Requirements
Suited for frontend and full-stack developers, technical architects, and engineers implementing browser-based real-time features such as video chat, screen sharing, or audio streaming, this course assumes a solid understanding of JavaScript and web technologies. Experience with Node.js and WebSocket-based communication is beneficial but not required.
Testimonials (3)
The training helped me expand my knowledge and understanding of Burp Suite. I also realized that what I had learned through self-study was still quite limited. This training was very helpful to me as a QA because Burp Suite is a valuable tool for performing security testing and improving the overall quality of application testing. I will continue exploring this tool and learning more about its features and capabilities.
Rea Mendez - BAKAWAN Data Anallytics Inc.
Course - OWASP Top 10 2025
I really enjoyed learning about AI attacks and the tools out there to begin practicing and actively using for security testing. I took a lot of knowledge away which I didn't have at the beginning and the course met what I hoped it would be. My favorite part shown from the training was Comet Browser and was amazed at what it could do. Definitely something will be looking into more. Overall it was a great course and enjoyed learning all OWASP GenAI Top 10.
Patrick Collins - Optum
Course - OWASP GenAI Security
Hands-on, exercises, in-person helping and questioning.
