webrtchacks

In part 1 of this set, I showed how one can use UV4L with the AIY Vision Kit send the camera stream and any of the default annotations to any point on the Web with WebRTC. In this post I will build on this by showing how to send image inference data over a WebRTC […]

The post Part 2: Building a AIY Vision Kit Web Server with UV4L appeared first on webrtcHacks.

A couple years ago I did a TADHack  where I envisioned a cheap, low-powered camera that could run complex computer vision and stream remotely when needed. After considering what it would take to build something like this myself, I waited patiently for this tech to come. Today with Google’s new AIY Vision kit, we are […]

The post AIY Vision Kit Part 1: TensorFlow Computer Vision on a Raspberry Pi Zero appeared first on webrtcHacks.

As the year 2017 comes to an end, there was a small present. Hangouts started to support Firefox with WebRTC instead of a plug-in. While it had been public for a while that the Firefox WebRTC team had been testing this, it was a nice Christmas present to see this shipped. Tsahi Levent-Levi was one […]

The post All I want for Christmas is Hangouts to use WebRTC on Firefox appeared first on webrtcHacks.

TensorFlow is one of the most popular Machine Learning frameworks out there – probably THE most popular one. One of the great things about TensorFlow is that many libraries are actively maintained and updated. One of my favorites is the TensorFlow Object Detection API.   The Tensorflow Object Detection API classifies and provides the location of multiple […]

The post Computer Vision on the Web with WebRTC and TensorFlow appeared first on webrtcHacks.

We have have had many posts on Session Description Protocol (SDP) here at werbrtcHacks. Why? Because it is often the most confusing yet critical aspects of WebRTC. It has also been among the most controversial. Earlier in WebRTC debates over SDP lead the to the development of the parallel ORTC standard which is now largely merging back into the […]

The post SDP: Your Fears Are Unleashed (Iñaki Baz Castillo) appeared first on webrtcHacks.

Decoding video when there is packet loss is not an easy task.  Recent Chrome versions have been plagued by video corruption issues related to a new video jitter buffer introduced in Chrome 58. These issues are hard to debug since they occur only when certain packets are lost. To combat these issues, webrtc.org has a […]

The post How to capture & replay WebRTC video streams with video_replay (Stian Selnes) appeared first on webrtcHacks.

I am a big fan of Chrome’s webrtc-internals tool. It is one of the most useful debugging tools for WebRTC and when it was added to Chrome back in 2012 it made my life a lot easier. I even wrote a lengthy series of blog post together with Tsahi Levent-Levi describing how to use it […]

The post WebRTC Externals – the cross-browser WebRTC debug extension appeared first on webrtcHacks.

Long have WebRTC developers waited for the day Apple would come around to WebRTC. It has not been simple for web developers and Apple due to their policy that requires web browsing functionality to use the WebKit engine along with Safari. This mean no WebRTC in Safari, no Firefox or Chrome WebRTC on iOS, no native […]

The post Reeling in Safari on WebRTC – A Closer Look at What’s Supported appeared first on webrtcHacks.

WebRTC establishes peer-to-peer connections between web browsers. To do that, it uses a set of techniques known as Interactive Connectivity Establishment or ICE. ICE allows clients behind certain types of routers that perform Network Address Translation, or NAT,to establish direct connections. (See the WebRTC glossary entry for a good introduction.) One of the first problems is for […]

The post Am I behind a Symmetric NAT? appeared first on webrtcHacks.

  Editor Note: Fippo uses a lot of advanced WebRTC terms below – if you are a regular reader of this blog then don’t let that scare  you. Wireshark is a great tool for diagnosing media issues and inspecting signaling packets even if you’re not building a media server. {“editor”, “chad hart“}   Stuff breaks all […]

The post Debugging VP8 is more fun than it used to be appeared first on webrtcHacks.

While Windows may no longer be the default platform it was a decade ago it still has a huge and active community. More than 400 million devices support Windows 10 and there are many millions of .NET and Visual Studio users out there. In fact, I made my first WebRTC application in .NET using XSockets years ago. In […]

The post New Windows into WebRTC with UWP: Q&A with Microsoft’s James Cadd appeared first on webrtcHacks.

Multi-party calling architectures are a common topic here at webrtcHacks, largely because group calling is widely needed but difficult to implement and understand. Most would agree Scalable Video Coding (SVC) is the most advanced, but the most complex multi-party calling architecture. To help explain how it works we have brought in not one, but two WebRTC video architecture experts. […]

The post Chrome’s WebRTC VP9 SVC Layer Cake: Sergio Garcia Murillo & Gustavo Garcia appeared first on webrtcHacks.

Slack is an über popular and fast growing communications tool that has a ton of integrations with various WebRTC services. It also acquired a WebRTC company a year ago and launched its own audio conferencing service earlier this year which we analyzed here and here. Earlier this week they launched video. Does this work the same? Are […]

The post Slack Does WebRTC Video – Here’s How (Gustavo Garcia) appeared first on webrtcHacks.

WebRTC 1.0 uses SDP for negotiating capabilities between parties.  While there are a growing number of objects coming to WebRTC to avoid this protocol from the 90’s , the reality is SDP will be with us for some time. If you want to do things like change codecs or adjust bandwidth limits, then you’re going to need to “munge” […]

The post How to limit WebRTC bandwidth by modifying the SDP appeared first on webrtcHacks.

Media servers, server-side media handling devices, continue to be a popular topic of discussion in WebRTC. One reason for this because they are the most complex elements in a VoIP architecture and that lends itself to differing approaches and misunderstandings. Putting WebRTC media servers in the cloud and reliably scaling them is  even harder. Fortunately there are […]

The post WebRTC media servers in the Cloud: lessons learned (Luis López Fernández) appeared first on webrtcHacks.

Way back in 47 (version that is), Chrome started to mandate the use of HTTPS in conjunction with getUserMedia. To use HTTPS you need a SSL/TLS certificate.  Xander Dumaine covered this a bit for us before, but I still see a lot of people out there struggle with it. As it so happens, the certificate for my […]

The post Let’s Encrypt – how get to free SSL for WebRTC appeared first on webrtcHacks.

Dealing with multi-party video infrastructure can be pretty daunting. The good news is the technology, products, and standards to enable economical multiparty video in WebRTC has matured quite a bit in the past few years. One of the key underlying technologies enabling some of this change is called simulcast. Simulcast has been an occasional sub-topic […]

The post Optimizing video quality using Simulcast (Oscar Divorra) appeared first on webrtcHacks.

Conference calling is a multi-billion dollar industry that is mostly powered by expensive, high-powered conferencing servers. Now you can replicate much of this functionality for free with a modern browser using the combination of WebRTC and WebAudio. Like with video, multi-party audio can utilize a few architectures: Full mesh – each client sends their audio […]

The post Your Browser as a Audio Conference Server with WebRTC & Web Audio (Alexey Aylarov) appeared first on webrtcHacks.

Session Description Protocol (SDP) is a fundamental, but very unintuitive concept behind how WebRTC works today. Its no wonder that the Anatomy of a WebRTC SDP post and the interactive SDP guide by Quobis CTO, Antón Román has been so popular here on webrtcHacks. With all things WebRTC, things have changed and we were due for an […]

The post Update: Anatomy of a WebRTC SDP (Antón Román) appeared first on webrtcHacks.

Two weeks ago Microsoft’s Bernard Aboba (and former webrtcHack’s interviewee) gave an update on Edge’s ORTC and WebRTC at the Microsoft Build conference. He covered some big topics including VP8 and WebRTC 1.0 support. You can see the update video here or read the follow-up post for details. Then last week Microsoft announced plug-in free Skype […]

The post Sharpening the Edge – extended Q&A with Microsoft for RTC devs appeared first on webrtcHacks.