#js實現視訊截圖
阿新 • • 發佈:2021-12-14
原文:https://blog.csdn.net/zhanglir333/article/details/79178979
js實現視訊截圖
<!doctype html> <html lang="zh-CN"> <head> <title>測試頁</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=no,maximum-scale=1,minimum-scale=1"> </head> <body> <video id="video" controls="controls"> <source src="movie.ogg"></source> <source src="movie.mp4"></source> 您的瀏覽器不支援html5 </video> <button id="capture">截圖</button> <div id="output"></div> <script src="https://cdn.bootcss.com/jquery/1.12.3/jquery.js"></script> <script> $(function(){ var video, $output; var scale = 0.25; var initialize = (function() { $output = $('#output'); video = $('#video').get(0); $('#capture').on('click', function(){ captureImage(); }) })() var captureImage = function(){ var canvas = document.createElement("canvas"); canvas.width = video.videoWidth * scale; canvas.height = video.videoHeight * scale; canvas.getContext('2d').drawImage(video, 0, 0, canvas.width, canvas.height); var image = document.createElement('img'); image.src = canvas.toDataURL(); $output.prepend(image); } }) </script> </body> </html>