html2canvas 如何合成图片， DOM 带 video 标签的实时画面？ - V2EX
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html2canvas 如何合成图片， DOM 带 video 标签的实时画面？

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  •   TOTOP Sep 28, 2022 1155 views
    This topic created in 1323 days ago, the information mentioned may be changed or developed.
    我这边有个项目 H5 ，是一个套框实时拍照头像合成照片的，
  • 套框
  • 合成
  • DOM
  • 实时
    4 replies    2022-09-28 15:41:23 +08:00
    mxT52CRuqR6o5
        1
    mxT52CRuqR6o5  
       Sep 28, 2022
    video 是同源的视频吗？非同源的视频在 js 里是获取不到具体画面的
    TOTOP
        2
    TOTOP  
    OP
       Sep 28, 2022 via Android
    @mxT52CRuqR6o5 是手机摄像头的画面
    quehei
        3
    quehei  
       Sep 28, 2022
    可能需要魔法，比如先拿 canvas 把这个视频画下来盖上去，从 canvas 里拿图片给 html2canvas
    TOTOP
        4
    TOTOP  
    OP
       Sep 28, 2022 via Android
    @quehei 现在想到也就这方法，但如何在手机上做到视频图片 跟 绘画图片一直，我想宽度 100%去兼容他，但 drawimage 不能这么写
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