有没办法获取video视频里的图片_H5之家 - 中国HTML5教程资源分享第一站

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有没办法获取video视频里的图片

字号+ 作者：H5之家来源：H5之家 2017-07-28 16:08 我要评论( )

javascript - 有没办法获取video视频里的图片，当上传完视频的时候获取里面随便一帧当做封面，有办法做到没？

<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>capture screen</title> </head> <body> <video controls="controls"> <source src="123.MP4"> </video> <p></p> <script type="text/javascript"> (function(){ var video, output; var scale = 0.8; var initialize = function() { output = document.getElementById("output"); video = document.getElementById("video"); video.addEventListener('loadeddata',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 img = document.createElement("img"); img.src = canvas.toDataURL("image/png"); output.appendChild(img); }; initialize(); })(); </script> </body> </html>

也是在这里面找到的。你试下