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  • By Miguel Grinberg
    Add a Realtime Viewer Count to your Twilio Live Stream Add a Realtime Viewer Count to your Twilio Live Stream

    An important aspect of running a Twilio Live streaming experience is to track your viewership. But how do you do that? There are many different ways to do it, and the best method to use will depend on your needs and your technology stack.

    Are you ready to learn how to count your livestream viewers? In this article I’ll show you a few possible implementations with varying levels of complexity and flexibility.

    Requirements

    This article does not have any requirements beyond having some familiarity with the Twilio Live product. If you haven’t worked with Twilio Live before, I recommend that you follow an introductory tutorial first. My colleague Mia Adjei wrote a Twilio Live tutorial using Express.js, and I have also written one using the Twilio serverless platform, both of which show you how to build a complete livestreaming project step by step.

    To apply what you learn …

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  • By Lizzie Siegle
    Detect Objects in a Serverless Twilio Video App with TensorFlow.js header-tf-obj-det

    Object detection is a computer vision technique for locating instances of objects in media such as images or videos. This machine learning (ML) method can be applied to many areas of computer vision, like image retrieval, security, surveillance, automated vehicle systems and machine inspection. Read on to learn how to detect objects in a Twilio Programmable Video application using TensorFlow.js.

    object detection gif

    Setup

    To build a Twilio Programmable Video application, we will need:

    Download this GitHub repo and then create a file named .env in the top-level directory with the following contents, replacing the XXXXX placeholders with the values that apply …

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  • By Sean Coleman
    Twilio Video Reactアプリケーションで短時間でチャット対応ビデオアプリを開発する Twilio Video Reactアプリケーションで短時間でチャット対応ビデオアプリを開発する

    この記事はProgrammable VideoチームのプロジェクトマネージャーのSean Colemanこちらで公開した記事(英語)を日本語化したものです。

    Twilioは昨年、開発者がProgrammable Videoをわずか5分以内に立ち上げ、動作させることのできるTwilio Video Reactアプリケーションをリリースしました。そしてこのたび、このReactアプリケーションにチャット機能を新たに追加しました。この機能では、通常のチャットとファイルの送受信ができます。

    このオープンソースのReactJSアプリケーションは、開発の足掛かりとして利用するにも、信頼できるソースとして参照するにも役立ちます。加えて、今回の機能追加により、ビデオアプリケーションへのチャット機能の追加を短時間で行えるようになりました。

    この投稿では、エンドユーザーがビデオアプリケーションを利用するにあたり、チャットが重要なコミュニケーションチャネルである理由、新機能の概要、新機能の実装に使用されている仕組み(Conversations API)について説明します。

    ビデオアプリケーションにチャットを追加する理由

    ビデオアプリケーションでは、ユーザーが不明点をメッセージで質問する、過去の話題について後で質問する、関連リンクを共有するなど、話し手を邪魔することなくコミュニケーションをとりたいときにチャットが役に立ちます。

    さらに、チャットを活用して以下のようなメリットを実現するビデオソリューションも増えてきています。

    • インクルーシビティの推進: 参加者がより快適にコミュ …
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  • By Ander Telleria
    Twilio Live is Now Generally Available Twilio Live is Now Generally Available

    Today, and coinciding with SIGNAL, Twilio’s virtual customer and developer conference, we are excited to announce that Twilio Live is now generally available!

    Twilio Live gives developers the tools to build live interactive experiences that can be directly embedded into their applications. With Twilio Live, developers have access to a low-latency, secure live streaming platform that allows speakers to reach an audience of millions while providing an intuitive end-to-end developer experience, including flexible server-side API primitives, and client SDKs for iOS, Android, and JavaScript.

    What developers are building with Twilio Live

    Since launching in Private Beta in July, developers and organizations of all sizes from around the world have expressed interest in Twilio Live. In conversations with these customers, we’ve found that interactive experiences are expanding far beyond the limited use cases of the past.

    In just a few months, we’ve had customers come to us with a variety …

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  • By Mia Adjei
    Build a Livestreaming Application with Twilio Live and Express Build a Livestreaming Application with Twilio Live and Express

    Twilio Live is finally here! If you have ever wanted to build your own livestreaming application, now is your chance.

    In this tutorial, you will learn how to build a livestreaming application and share your live video feed with your friends, followers, and maybe even the world. For this project, you'll be using Node.js and Express to build the server side of the application, and vanilla JavaScript on the client side.

    Let's get started!

    Prerequisites

    • A free Twilio account. (If you register here, you'll receive $10 in Twilio credit when you upgrade to a paid account!)
    • Node.js v14+ and npm installed on your machine.
    • ngrok

    What you will build

    In this tutorial, you will be creating an application that allows a person to livestream video and audio from their device to people who have the link to the stream. The Express server you'll build will handle both the streamer …

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  • By Sean Coleman
    One Year of WebRTC Go: Highlights, Updates, and a Special Announcement on Quota Increases One Year of WebRTC Go: Highlights, Updates, and a Special Announcement on Quota Increases

    We launched WebRTC Go a year ago to make it easier for developers to get started with WebRTC. We’ve seen tremendous growth and interest from the community, and based on feedback from our WebRTC Go developers, we are excited to announce quota increases to allow developers to build 1:1 video applications in production for free, for longer. The changes are as follows:

    1. WebRTC Go now comes with unlimited TURN usage, removing the previous 25 GB/month limit.
    2. You can now scale up to 500 concurrent participants or rooms, up 500% from the previous limit of 100.

    If you missed our launch last year, Twilio WebRTC Go provides developers with a toolkit to build, launch, and run 1:1 video applications for free. With WebRTC Go, you don’t have to worry about gathering ICE candidates and relaying media — we provide the signaling and STUN/TURN servers for you. You also get SDKs, quickstarts, …

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  • By Mia Adjei
    Share a File over a WebRTC Data Channel with Twilio Video Share a File over a WebRTC Data Channel with Twilio Video

    When you're taking part in a video conversation, sometimes you have files you want to share with the other people on the call so that everyone can take a look. This is a great way to collaborate with your friends or colleagues when you're not in the same room or looking at the same screen.

    In this tutorial, you'll build a video application with JavaScript and learn how to use the Twilio Video DataTrack API to share a file over WebRTC with the other participants on the call.

    Follow along below step by step, or if you're interested in skipping ahead to take a look at the code, visit the project repository on GitHub here.

    Let's get started!

    Prerequisites

    • A free Twilio account. (If you register here, you'll receive $10 in Twilio credit when you upgrade to a paid account!)
    • Node.js v14+ and npm installed on your machine. …
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  • By Vivian Bai
    Accelerate Your Development with the New Video Room Monitor, Now in Beta Accelerate Your Development with the New Video Room Monitor, Now in Beta

    Whether you are just starting to build with Twilio Programmable Video or are looking to optimize your application in production, access to the inner workings of your video application is essential to iterate fast and verify code changes to lead to the outcome you are looking for. You could dive into the Room object through the browser console, but the values are not updated in real-time, and it often takes many clicks to find the value you want. Furthermore, some of the metrics you need for optimizing your application aren’t easily consumable. For example, although you can get the total bytes sent for a given track after some number of clicks, what you probably want is the bitrate. And you probably want to see how it changes in real-time. As you go through the various stages of development, this process becomes cumbersome and the time it takes to access the …

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  • By Sean Coleman
    Help Your Users Help Themselves with the New Video Diagnostics App, Now in Beta Help Your Users Help Themselves with the New Video Diagnostics App, Now in Beta

    The reality when building and operating real-time video applications is that sometimes the device, software, and network conditions of your end users, variables seemingly outside your control, can negatively impact their perception of the quality of your video service. Thus, to help your customers have high-quality video experiences, it is important to take the necessary steps to ensure users are set up to have a successful first video call experience during onboarding or to be able to quickly diagnose end users' issues when they arise.

    To help you with this, we are excited to announce the release of the Video Diagnostics Web App, an open source ReactJS application demonstrating how to test a participant’s ability to have a high-quality video call with the Twilio platform - now available in Public Beta for WebRTC Go, P2P, and Group room developers. It can be used as part of onboarding or as …

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  • By Mia Adjei
    Build a Free 1:1 Video Chat Application with Twilio WebRTC Go and Ruby Build a Free 1:1 Video Chat Application with Twilio WebRTC Go and Ruby

    Have you ever wished you could build a video chat application to talk to a friend, family member, or colleague one-on-one? With Twilio WebRTC Go, you can build your own video application where two participants can video chat for free.

    In this tutorial, you will learn how to build a 1:1 video chat application with Ruby and JavaScript, and set it up to run on ngrok so you can chat with a friend. The application will consist of two parts: a vanilla JavaScript client-side application that will allow you to connect to a video room, and a Ruby/Sinatra server that will grant Access Tokens for the participants in the video chat.

    If you would like to skip ahead and take a look at the code, check out the project repository on GitHub here.

    Let's get started!

    Prerequisites

    • A free Twilio account. (If you register here, you'll receive …
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