html5éè¦ä½¿ç¨æ¥å£chrome30+ for android å·²ç»å®ç°äºå©ç¨webcamï¼è°ç¨ææºåç½®æå头ï¼ä»£ç å¦ä¸ï¼
<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"><head> <title>HTML5 GetUserMedia Demo</title> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" /></head><body> <input type="button" title="å¼å¯æå头" value="å¼å¯æå头" onclick="getMedia();" /><br /> <video height="120px" autoplay="autoplay"></video><hr /> <input type="button" title="æç §" value="æç §" onclick="getPhoto();" /><br /> <canvas id="canvas1" height="120px" ></canvas><hr /> <input type="button" title="è§é¢" value="è§é¢" onclick="getVedio();" /><br /> <canvas id="canvas2" height="120px"></canvas> <script type="text/javascript"> var video = document.querySelector('video'); var audio, audioType; var canvas1 = document.getElementById('canvas1'); var context1 = canvas1.getContext('2d'); var canvas2 = document.getElementById('canvas2'); var context2 = canvas2.getContext('2d'); navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia; window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL; var exArray = []; //åå¨è®¾å¤æºID MediaStreamTrack.getSources(function (sourceInfos) { for (var i = 0; i != sourceInfos.length; ++i) { var sourceInfo = sourceInfos[i]; //è¿éä¼éåaudio,videoï¼æ以è¦å 以åºå if (sourceInfo.kind === 'video') { exArray.push(sourceInfo.id); } } }); function getMedia() { if (navigator.getUserMedia) { navigator.getUserMedia({ 'video': { 'optional': [{ 'sourceId': exArray[1] //0为åç½®æå头ï¼1为åç½® }] }, 'audio':true }, successFunc, errorFunc); //successæ¯è·åæåçåè°å½æ° } else { alert('Native device media streaming (getUserMedia) not supported in this browser.'); } } function successFunc(stream) { //alert('Succeed to get media!'); if (video.mozSrcObject !== undefined) { //Firefoxä¸ï¼video.mozSrcObjectæå为nullï¼èä¸æ¯æªå®ä¹çï¼æ们å¯ä»¥é è¿ä¸ªæ¥æ£æµFirefoxçæ¯æ video.mozSrcObject = stream; } else { video.src = window.URL && window.URL.createObjectURL(stream) || stream; } //video.play(); // é³é¢ audio = new Audio(); audioType = getAudioType(audio); if (audioType) { audio.src = 'polaroid.' + audioType; audio.play(); } } function errorFunc(e) { alert('Errorï¼'+e); } // å°è§é¢å¸§ç»å¶å°Canvas对象ä¸,Canvasæ¯60msåæ¢å¸§ï¼å½¢æèç¼è§é¢ææ function drawVideoAtCanvas(video,context) { window.setInterval(function () { context.drawImage(video, 0, 0,90,120); }, 60); } //è·åé³é¢æ ¼å¼ function getAudioType(element) { if (element.canPlayType) { if (element.canPlayType('audio/mp4; codecs="mp4a.40.5"') !== '') { return ('aac'); } else if (element.canPlayType('audio/ogg; codecs="vorbis"') !== '') { return ("ogg"); } } return false; } // vedioææ¾æ¶è§¦åï¼ç»å¶vedio帧å¾åå°canvas// video.addEventListener('play', function () {// drawVideoAtCanvas(video, context2);// }, false); //æç § function getPhoto() { context1.drawImage(video, 0, 0,90,120); //å°video对象å æå®çåºåææç»å¶å°ç»å¸ä¸æå®çåºåï¼å®ç°æç §ã } //è§é¢ function getVedio() { drawVideoAtCanvas(video, context2); } </script></body></html>
<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"><head> <title>HTML5 GetUserMedia Demo</title> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" /></head><body> <input type="button" title="å¼å¯æå头" value="å¼å¯æå头" onclick="getMedia();" /><br /> <video height="120px" autoplay="autoplay"></video><hr /> <input type="button" title="æç §" value="æç §" onclick="getPhoto();" /><br /> <canvas id="canvas1" height="120px" ></canvas><hr /> <input type="button" title="è§é¢" value="è§é¢" onclick="getVedio();" /><br /> <canvas id="canvas2" height="120px"></canvas> <script type="text/javascript"> var video = document.querySelector('video'); var audio, audioType; var canvas1 = document.getElementById('canvas1'); var context1 = canvas1.getContext('2d'); var canvas2 = document.getElementById('canvas2'); var context2 = canvas2.getContext('2d'); navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia; window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL; var exArray = []; //åå¨è®¾å¤æºID MediaStreamTrack.getSources(function (sourceInfos) { for (var i = 0; i != sourceInfos.length; ++i) { var sourceInfo = sourceInfos[i]; //è¿éä¼éåaudio,videoï¼æ以è¦å 以åºå if (sourceInfo.kind === 'video') { exArray.push(sourceInfo.id); } } }); function getMedia() { if (navigator.getUserMedia) { navigator.getUserMedia({ 'video': { 'optional': [{ 'sourceId': exArray[1] //0为åç½®æå头ï¼1为åç½® }] }, 'audio':true }, successFunc, errorFunc); //successæ¯è·åæåçåè°å½æ° } else { alert('Native device media streaming (getUserMedia) not supported in this browser.'); } } function successFunc(stream) { //alert('Succeed to get media!'); if (video.mozSrcObject !== undefined) { //Firefoxä¸ï¼video.mozSrcObjectæå为nullï¼èä¸æ¯æªå®ä¹çï¼æ们å¯ä»¥é è¿ä¸ªæ¥æ£æµFirefoxçæ¯æ video.mozSrcObject = stream; } else { video.src = window.URL && window.URL.createObjectURL(stream) || stream; } //video.play(); // é³é¢ audio = new Audio(); audioType = getAudioType(audio); if (audioType) { audio.src = 'polaroid.' + audioType; audio.play(); } } function errorFunc(e) { alert('Errorï¼'+e); } // å°è§é¢å¸§ç»å¶å°Canvas对象ä¸,Canvasæ¯60msåæ¢å¸§ï¼å½¢æèç¼è§é¢ææ function drawVideoAtCanvas(video,context) { window.setInterval(function () { context.drawImage(video, 0, 0,90,120); }, 60); } //è·åé³é¢æ ¼å¼ function getAudioType(element) { if (element.canPlayType) { if (element.canPlayType('audio/mp4; codecs="mp4a.40.5"') !== '') { return ('aac'); } else if (element.canPlayType('audio/ogg; codecs="vorbis"') !== '') { return ("ogg"); } } return false; } // vedioææ¾æ¶è§¦åï¼ç»å¶vedio帧å¾åå°canvas// video.addEventListener('play', function () {// drawVideoAtCanvas(video, context2);// }, false); //æç § function getPhoto() { context1.drawImage(video, 0, 0,90,120); //å°video对象å æå®çåºåææç»å¶å°ç»å¸ä¸æå®çåºåï¼å®ç°æç §ã } //è§é¢ function getVedio() { drawVideoAtCanvas(video, context2); } </script></body></html>
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第1个回答 2017-10-30
部分手机支持修改应用程序权限：智能管理器-应用程序权限管理/应用程序许可-点击应用程序/权限-滑动对应开关即可设置。
注：部分内置软件权限为系统默认，无法更改。本回答被提问者采纳
注：部分内置软件权限为系统默认，无法更改。本回答被提问者采纳
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