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Guides and information for WebRTC developers
Updated: 39 min 52 sec ago

How does WebRTC End-to-End Encryption work? Matrix.org example (Dave Baker)

Tue, 10/05/2021 - 14:00

One of WebRTC’s great features is its mandated strong encryption.  Encryption mechanisms are built-in, meaning developers don’t (often) need to deal with the details. However, these easy, built-in encryption mechanisms assume you have: 1) media is communicated peer-to-peer and 2) a secure signaling channel setup. Most group-calling services make use of a media server device, […]

The post How does WebRTC End-to-End Encryption work? Matrix.org example (Dave Baker) appeared first on webrtcHacks.

Apple’s not so private relay fails with WebRTC

Mon, 09/27/2021 - 09:07

Apple released iOS 15 with iCloud Private Relay broken for WebRTC - it still divulges your IP address. This post walks through why and how the WebRTC API's use your IP address information and how you can check what IP addresses are gathered.

The post Apple’s not so private relay fails with WebRTC appeared first on webrtcHacks.

Dealing with HTMLMediaElements and srcObjects in WebRTC applications

Wed, 08/11/2021 - 08:30

Philipp Hancke discusses a how to properly release Media Element resources with WebRTC and a recent Chrome issue that apps to stop handling larger numbers of participants.

The post Dealing with HTMLMediaElements and srcObjects in WebRTC applications appeared first on webrtcHacks.

Identifying Shared Tabs using Capture Handle (Elad Alon)

Thu, 07/22/2021 - 14:58

Introduction to capture handle - a new Chrome Origin Trial that lets a WebRTC screen sharing application communicate with the tab it is capturing. Examples use case discussed include detecting self-capture, improving the use of collaboration apps that are screen shared, and optimizing stream parameters of the captured content.

The post Identifying Shared Tabs using Capture Handle (Elad Alon) appeared first on webrtcHacks.

Making Zoom’s Smart Gallery on the Web with MediaPipe and BreakoutBox

Thu, 07/15/2021 - 14:40

How to seperate multiple people in the same camera feed into their own unique video streams that can be individually transmitted Google's MediaPipe and the W3C's new MediaStreamTrack API

The post Making Zoom’s Smart Gallery on the Web with MediaPipe and BreakoutBox appeared first on webrtcHacks.

FaceTime finally faces WebRTC – implementation deep dive

Mon, 06/14/2021 - 14:30

Deep dive analysis on how FaceTime for Web uses WebRTC. Philipp "Fippo" Hancke uses webrtc-internals, Wireshark, and reviews the JavaScript implementation to expose Apple's implementation details.

The post FaceTime finally faces WebRTC – implementation deep dive appeared first on webrtcHacks.

How to Leverage the AWS WebSocket API for Serverless WebRTC signaling

Tue, 05/25/2021 - 05:42

How to use the AWS API Gateway WebSocket API functionality with Lamdba functions to implement a serverless WebRTC signaling architecture

The post How to Leverage the AWS WebSocket API for Serverless WebRTC signaling appeared first on webrtcHacks.

How Go-based Pion attracted WebRTC Mass – Q&A with Sean Dubois

Tue, 04/06/2021 - 14:33

Pion seemingly came out of nowhere to become one of the biggest and most active WebRTC communities. Pion is a Go-based set of WebRTC projects. Golang is an interesting language, but it is not among the most popular programming languages out there, so what is so special about Pion? Why are there so many developers […]

The post How Go-based Pion attracted WebRTC Mass – Q&A with Sean Dubois appeared first on webrtcHacks.

WebRTC Today & Tomorrow: Interview with W3C WebRTC Chair Bernard Aboba

Tue, 12/22/2020 - 14:30

Interview with WebRTC standards co-chair and author, Bernard Aboba. We cover the current status of WebRTC and where it is headed including WebRTC-NV, Simulcast, SVC, AV1, WebTransport, WebCodecs, ML and more.

The post WebRTC Today & Tomorrow: Interview with W3C WebRTC Chair Bernard Aboba appeared first on webrtcHacks.

How does the new Azure Communication Services implement WebRTC? (Gustavo Garcia)

Fri, 10/23/2020 - 14:26

Walkthrough and deep analysis of how Azure Communications Service makes use of WebRTC by Gustavo Garcia

The post How does the new Azure Communication Services implement WebRTC? (Gustavo Garcia) appeared first on webrtcHacks.

Implementing REDundant audio on an SFU

Tue, 10/13/2020 - 14:55

Chrome recently added the option of adding redundancy to audio streams using the RED format as defined in RFC 2198, and Fippo wrote about the process and implementation in a previous article. You should catch-up on that post, but to summarize quickly RED works by adding redundant payloads with different timestamps in the same packet. […]

The post Implementing REDundant audio on an SFU appeared first on webrtcHacks.

RED: Improving Audio Quality with Redundancy

Thu, 08/20/2020 - 11:47

Back in April 2020 a Citizenlab reported on Zoom’s rather weak encryption and stated that Zoom uses the SILK codec for audio. Sadly, the article did not contain the raw data to validate that and let me look at it further. Thankfully Natalie Silvanovich from Googles Project Zero helped me out using the Frida tracing […]

The post RED: Improving Audio Quality with Redundancy appeared first on webrtcHacks.

Using getDisplayMedia for local recording with audio on Jitsi

Tue, 06/30/2020 - 15:22

I wanted to add local recording to my own Jitsi Meet instance. The feature wasn’t built in the way I wanted, so I set out on a hack to build something simple. That lead me down the road to  discovering that: getDisplayMedia for screen capture has many quirks, mediaRecorder for media recording has some of its […]

The post Using getDisplayMedia for local recording with audio on Jitsi appeared first on webrtcHacks.

Open Source Cloud Gaming with WebRTC

Thu, 04/16/2020 - 05:13

Software as a Service, Infrastructure as a Service, Platform as a Service, Communications Platform as a Service, Video Conferencing as a Service, but what about Gaming as a Service? There have been a few attempts at Cloud Gaming, most notably Google’s recently launched Stadia. Stadia is no stranger to WebRTC, but can others leverage WebRTC […]

The post Open Source Cloud Gaming with WebRTC appeared first on webrtcHacks.

True End-to-End Encryption with WebRTC Insertable Streams

Mon, 04/13/2020 - 04:36

A couple of weeks ago, the Chrome team announced an interesting Intent to Experiment on the blink-dev list about an API to do some custom processing on top of WebRTC. The intent comes with an explainer document written by Harald Alvestrand which shows the basic API usage. As I mentioned in my last post, this is the […]

The post True End-to-End Encryption with WebRTC Insertable Streams appeared first on webrtcHacks.

Accelerated Computer Vision inside a WebRTC Media Server with Intel OWT

Fri, 04/03/2020 - 14:18

WebRTC has made getting and sending real time video streams (mostly) easy. The next step is doing something with them, and machine learning lets us have some fun with those streams. Last month I showed how to run Computer Vision (CV) locally in the browser. As I mentioned there, local is nice, but sometimes more performance […]

The post Accelerated Computer Vision inside a WebRTC Media Server with Intel OWT appeared first on webrtcHacks.

Does your video call have End-to-End Encryption? Probably not..

Thu, 04/02/2020 - 02:05

Time for another opinionated post. This time on… end-to-end encryption (e2ee). Zoom apparently claims it supports e2ee while it can not satisfy that promise. Is WebRTC any better? Zoom does not have End to End Encryption Let’s get to the bottom of things fast: Boo Zoom! I reviewed how Zoom’s implements their web client last […]

The post Does your video call have End-to-End Encryption? Probably not.. appeared first on webrtcHacks.

Stop touching your face using a browser and TensorFlow.js

Thu, 03/19/2020 - 12:55

Don’t touch your face! To prevent the spread of disease, health bodies recommend not touching your face with unwashed hands. This is easier said than done if you are sitting in front of a computer for hours.  I wondered, is this a problem that can be solved with a browser? We have a number of […]

The post Stop touching your face using a browser and TensorFlow.js appeared first on webrtcHacks.

Private Home Surveillance with the WebRTC DataChannel (Ivelin Ivanov)

Tue, 02/25/2020 - 13:35

When most people think of WebRTC they think of video communications. Similarly, home surveillance is usually associated with video streaming. That’s why I was surprised to hear about a home security project that leverages WebRTC not for video streaming, but for the DataChannel. WebRTC’s DataChannel might not demo as well as a video call, but […]

The post Private Home Surveillance with the WebRTC DataChannel (Ivelin Ivanov) appeared first on webrtcHacks.

Not a Guide to SDP Munging

Tue, 02/11/2020 - 13:33

SDP has been a frequent topic, both here on webrtcHacks as well as in the discussion about the standard itself. Modifying the SDP in arcane ways is referred to as SDP munging. This post gives an introduction into what SDP munging is, why its done and why it should not be done. This is not […]

The post Not a Guide to SDP Munging appeared first on webrtcHacks.

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