Created
August 25, 2018 19:26
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>MediaCapture and Streams API</title> | |
| <meta name="viewport" content="width=device-width"> | |
| <link rel="stylesheet" href="main.css"> | |
| </head> | |
| <body> | |
| <header> | |
| <h1>MediaCapture, MediaRecorder and Streams API</h1> | |
| </header> | |
| <main> | |
| <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Impedit molestiae itaque facere totam saepe tempore esse temporibus, quae reprehenderit aliquid iusto ea laborum, iure eligendi odio exercitationem sapiente illum quos.</p> | |
| <p><button id="btnStart">START RECORDING</button><br/> | |
| <button id="btnStop">STOP RECORDING</button></p> | |
| <video controls></video> | |
| <video id="vid2" controls></video> | |
| <!-- could save to canvas and do image manipulation and saving too --> | |
| </main> | |
| <script> | |
| let constraintObj = { | |
| audio: false, | |
| video: { | |
| facingMode: "user", | |
| width: { min: 640, ideal: 1280, max: 1920 }, | |
| height: { min: 480, ideal: 720, max: 1080 } | |
| } | |
| }; | |
| // width: 1280, height: 720 -- preference only | |
| // facingMode: {exact: "user"} | |
| // facingMode: "environment" | |
| //handle older browsers that might implement getUserMedia in some way | |
| if (navigator.mediaDevices === undefined) { | |
| navigator.mediaDevices = {}; | |
| navigator.mediaDevices.getUserMedia = function(constraintObj) { | |
| let getUserMedia = navigator.webkitGetUserMedia || navigator.mozGetUserMedia; | |
| if (!getUserMedia) { | |
| return Promise.reject(new Error('getUserMedia is not implemented in this browser')); | |
| } | |
| return new Promise(function(resolve, reject) { | |
| getUserMedia.call(navigator, constraintObj, resolve, reject); | |
| }); | |
| } | |
| }else{ | |
| navigator.mediaDevices.enumerateDevices() | |
| .then(devices => { | |
| devices.forEach(device=>{ | |
| console.log(device.kind.toUpperCase(), device.label); | |
| //, device.deviceId | |
| }) | |
| }) | |
| .catch(err=>{ | |
| console.log(err.name, err.message); | |
| }) | |
| } | |
| navigator.mediaDevices.getUserMedia(constraintObj) | |
| .then(function(mediaStreamObj) { | |
| //connect the media stream to the first video element | |
| let video = document.querySelector('video'); | |
| if ("srcObject" in video) { | |
| video.srcObject = mediaStreamObj; | |
| } else { | |
| //old version | |
| video.src = window.URL.createObjectURL(mediaStreamObj); | |
| } | |
| video.onloadedmetadata = function(ev) { | |
| //show in the video element what is being captured by the webcam | |
| video.play(); | |
| }; | |
| //add listeners for saving video/audio | |
| let start = document.getElementById('btnStart'); | |
| let stop = document.getElementById('btnStop'); | |
| let vidSave = document.getElementById('vid2'); | |
| let mediaRecorder = new MediaRecorder(mediaStreamObj); | |
| let chunks = []; | |
| start.addEventListener('click', (ev)=>{ | |
| mediaRecorder.start(); | |
| console.log(mediaRecorder.state); | |
| }) | |
| stop.addEventListener('click', (ev)=>{ | |
| mediaRecorder.stop(); | |
| console.log(mediaRecorder.state); | |
| }); | |
| mediaRecorder.ondataavailable = function(ev) { | |
| chunks.push(ev.data); | |
| } | |
| mediaRecorder.onstop = (ev)=>{ | |
| let blob = new Blob(chunks, { 'type' : 'video/mp4;' }); | |
| chunks = []; | |
| let videoURL = window.URL.createObjectURL(blob); | |
| vidSave.src = videoURL; | |
| } | |
| }) | |
| .catch(function(err) { | |
| console.log(err.name, err.message); | |
| }); | |
| /********************************* | |
| getUserMedia returns a Promise | |
| resolve - returns a MediaStream Object | |
| reject returns one of the following errors | |
| AbortError - generic unknown cause | |
| NotAllowedError (SecurityError) - user rejected permissions | |
| NotFoundError - missing media track | |
| NotReadableError - user permissions given but hardware/OS error | |
| OverconstrainedError - constraint video settings preventing | |
| TypeError - audio: false, video: false | |
| *********************************/ | |
| </script> | |
| </body> | |
| </html> |
Downloads MUST be initiated by the user. They have to click the anchor with the express intention of downloading a file. This can't be done before the file is generated.
i have a problem that i think it might be with my apache settings but i'm not sure, so i use the code you published without editing and it still didn't work for me i didn't event get the notification to use my camera when i refreshed my http://localhost/
I have received the blob at server side using multer.
But
- type of file in req.file is converted to text/plain
But how do I save it as a video file there?
@prof3ssorSt3v3 please help me sir.
@prof3ssorSt3v3 Hey, I'm not able to seek in the HTML video player of chrome browser. Is there any configurations that I need to perform to achieve seeking in the player?
Hi
am struggling to store captured video using webcam( js) into file server
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Any idea on how can i directly download the video when i press stop recording button?