js如何是mp4视频文件浏览器上提取指定时间的画面帧?
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通过drawImage即可实现,将video视频播放,然后创建一个canvas画布,将视频播放到指定的时间进度,使用drawImage截图即可,示例代码如下:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Extract Video Frame</title> </head> <body> <video id="myVideo" width="0" height="0" controls muted> <source src="//repo.bfw.wiki/bfwrepo/video/5d8449e2482ad.mp4" type="video/mp4"> Your browser does not support the video tag. </video> <canvas id="myC...
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