Course Outline
Managing Media Devices
Browser Permissions via navigator.permissions
- Hardware access:
- Webcam
- Microphone
- Optional permissions:
- Geolocation
- Notifications
- Clipboard (read/write)
- Querying permissions and checking status
- Limitations and browser compatibility
Retrieving Media Devices with navigator.mediaDevices
- Enumerating devices
- Managing device changes
Cross-browser Compatibility
- API implementation:
- navigator.permissions.query()
- navigator.mediaDevices.enumerateDevices()
- getUserMedia()
- Safari fallback strategies
Media Device Management
- Device initialization: getUserMedia(constraints)
- Configuring media device constraints
- Controlling media stream start and stop
- Responding to device changes
Recording Devices using MediaRecorder
- Initiating and terminating streaming and recording
- Downloading .webm files
- Real-time waveform previews
Optional Extensions:
- Saving in .wav format using ScriptProcessorNode
- Audio FFT spectrum visualization
- Volume bar display in decibels
- Voice recognition via webkitSpeechRecognition
Peer Connections
Signaling Servers
- Bidirectional channel options:
- WebSocket
- Socket.io
- SignalR
- Message structure
- Simplified WebRTC client
- Complete signaling flow
Video Chat using WebRTC
- Architecture: Node.js + ws
- WebRTC client: RTCPeerConnection
- Local end-to-end testing
Optional Features:
- Ending calls (closing connections, stopping media)
- Group calling (multi-user rooms)
- Simple token-based authentication
Screen Sharing
- Implementing getDisplayMedia()
- Architecture and configuration options
Session Description Protocol (SDP)
- Overview and components
- Parsing and interpreting SDP
- Codecs:
- Audio & Video
- Negotiation and control
- Fallback strategies
WebRTC Statistics using getStats()
- Categories of statistics
- Interpreting statistical data
- Live bitrate/jitter charts
- Quality adaptation strategies
Comprehensive Topics Covered
- Hands-on practical scenarios
Requirements
This course is tailored for frontend and full-stack developers, technical architects, and engineers developing browser-based real-time communication features, such as video chat, screen sharing, or audio streaming. Participants are expected to have a solid working knowledge of JavaScript and web technologies, with experience in Node.js and WebSocket-based communication being beneficial.
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.
