Created
June 2, 2019 12:18
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| <html> | |
| <head> | |
| <style> | |
| .brightness { | |
| -webkit-filter: brightness(5); | |
| -moz-filter: brightness(5); | |
| -o-filter: brightness(5); | |
| -ms-filter: brightness(5); | |
| filter: brightness(5); | |
| } | |
| .contrast { | |
| -webkit-filter: contrast(8); | |
| -moz-filter: contrast(8); | |
| -o-filter: contrast(8); | |
| -ms-filter: contrast(8); | |
| filter: contrast(8); | |
| } | |
| .hue-rotate { | |
| -webkit-filter: hue-rotate(90deg); | |
| -moz-filter: hue-rotate(90deg); | |
| -o-filter: hue-rotate(90deg); | |
| -ms-filter: hue-rotate(90deg); | |
| filter: hue-rotate(90deg); | |
| } | |
| .hue-rotate2 { | |
| -webkit-filter: hue-rotate(180deg); | |
| -moz-filter: hue-rotate(180deg); | |
| -o-filter: hue-rotate(180deg); | |
| -ms-filter: hue-rotate(180deg); | |
| filter: hue-rotate(180deg); | |
| } | |
| .hue-rotate3 { | |
| -webkit-filter: hue-rotate(270deg); | |
| -moz-filter: hue-rotate(270deg); | |
| -o-filter: hue-rotate(270deg); | |
| -ms-filter: hue-rotate(270deg); | |
| filter: hue-rotate(270deg); | |
| } | |
| .saturate { | |
| -webkit-filter: saturate(10); | |
| -moz-filter: saturate(10); | |
| -o-filter: saturate(10); | |
| -ms-filter: saturate(10); | |
| filter: saturate(10); | |
| } | |
| .grayscale { | |
| -webkit-filter: grayscale(1); | |
| -moz-filter: grayscale(1); | |
| -o-filter: grayscale(1); | |
| -ms-filter: grayscale(1); | |
| filter: grayscale(1); | |
| } | |
| .sepia { | |
| -webkit-filter: sepia(1); | |
| -moz-filter: sepia(1); | |
| -o-filter: sepia(1); | |
| -ms-filter: sepia(1); | |
| filter: sepia(1); | |
| } | |
| .invert { | |
| -webkit-filter: invert(1); | |
| -moz-filter: invert(1); | |
| -o-filter: invert(1); | |
| -ms-filter: invert(1); | |
| filter: invert(1); | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="screenshot" style="text-align:center;"> | |
| <video class="videostream" autoplay="" style="height: 100%;"></video> | |
| <img id="screenshot-img"> | |
| <p><button class="capture-button">Capture video</button> | |
| </p><p><button id="screenshot-button" disabled="">Take screenshot</button></p> | |
| </p><p><button id="cssfilters-apply">Apply filter</button></p> | |
| </div> | |
| <video autoplay></video> | |
| <img src=""> | |
| <canvas style="display:none;"></canvas> | |
| <script> | |
| const captureVideoButton = | |
| document.querySelector('#screenshot .capture-button'); | |
| const screenshotButton = document.querySelector('#screenshot-button'); | |
| const cssFiltersButton = | |
| document.querySelector('#cssfilters-apply'); | |
| const img = document.querySelector('#screenshot img'); | |
| const video = document.querySelector('#screenshot video'); | |
| const canvas = document.createElement('canvas'); | |
| const hdConstraints = { | |
| video: {width: {min: 1280}, height: {min: 720}, deviceId: { | |
| exact: '9b240573a4ee3f6bd11e30736e240eee2d6f719de9ab0a32e240082b77162fdb' | |
| }} | |
| }; | |
| const constraints = hdConstraints; | |
| let filterIndex = 0; | |
| const filters = [ | |
| 'grayscale', | |
| 'sepia', | |
| 'brightness', | |
| 'contrast', | |
| 'hue-rotate', | |
| 'hue-rotate2', | |
| 'hue-rotate3', | |
| 'saturate', | |
| 'invert', | |
| '' | |
| ]; | |
| cssFiltersButton.onclick = video.onclick = function() { | |
| video.className = filters[filterIndex++ % filters.length]; | |
| }; | |
| captureVideoButton.onclick = function() { | |
| navigator.mediaDevices.enumerateDevices() | |
| .then(devices => { | |
| var videoDevices = [0,0]; | |
| var videoDeviceIndex = 0; | |
| devices.forEach(function(device) { | |
| console.log(device.kind + ": " + device.label + | |
| " id = " + device.deviceId); | |
| if (device.kind == "videoinput") { | |
| videoDevices[videoDeviceIndex++] = device.deviceId; | |
| } | |
| }); | |
| var constraints = { | |
| deviceId: { exact: videoDevices[0] } | |
| }; | |
| return navigator.mediaDevices.getUserMedia({ video: constraints }); | |
| }).then(handleSuccess); | |
| }; | |
| screenshotButton.onclick = video.onclick = function() { | |
| canvas.width = video.videoWidth; | |
| canvas.height = video.videoHeight; | |
| canvas.getContext('2d').drawImage(video, 0, 0); | |
| // Other browsers will fall back to image/png | |
| img.src = canvas.toDataURL('image/webp'); | |
| }; | |
| function handleSuccess(stream) { | |
| screenshotButton.disabled = false; | |
| video.srcObject = stream; | |
| } | |
| </script> | |
| </body> | |
| </html> |
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