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I need to open the webcam via JavaScript
I know it is possible to access the html5 by <video> but need access webcam with pure JavaScript
Can someone help me or give me some ideas?
I need only access the webcam with JavaScript and sorry for my English, I'm using Google translator.
I can't use tag '< video >'
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The following Javascript manages the process of streaming video through the webcam on the web page. The constants define the width and height of the video. The init () function initialises the getUserMedia () API. The handleSuccess () function streams the webcam video into the HTML element. We use the canvas API to draw the webcam capture.
How to use webcam-easy.js 1 # Step 1 : Include webcam-easy.js. First of all, simply include the script webcam-easy.min.js in the <head> section of the html file. 2 # Step 2 : Place elements in HTML 3 # Step 3 : Initialize webcam object 4 # Step 4 : Start Webcam. ... 5 # Step 5 : Snapshot. ... 6 # Step 6 : Stop webcam. ...
You said, you know that "HTML5" can access the webcam, but you need it by pure Javascript. Well, in case you don't know, HTML5 introduced the such called WebRTC which is short for Real-Time Communications. Part of that, a new thing called navigator.getUserMedia () navigator.mediaDevices.getUserMedia (constraints) was introduced as well.
You can use getUserMedia to open a dialog window to request permissions from the user to use their webcam to capture an image using HTML5 and Javascript. The following HTML code embeds a video element and draws an image on the page. We will use the HTML5 <video> element to embed a video on the page.
As I stated as comment, I'm confused about your wording. You said, you know that "HTML5" can access the webcam, but you need it by pure Javascript.
Well, in case you don't know, HTML5 introduced the such called WebRTC which is short for Real-Time Communications. Part of that, a new thing called navigator.getUserMedia() navigator.mediaDevices.getUserMedia(constraints) was introduced as well. That is, an ECMAscript object, which allows you to get access to the users machine WebCam and Microphone devices.
As you can see, the whole show is embedded in the HTML5 rollout / spec, so we cannot really separate the Javascript from the HTML5 here.
Further reading:
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