在视频或画布中播放AVI视频

Question

如何将AVI视频播放到Canvas或Video元素中：

Blob {size: 752290, type: "video/avi"}
size: 752290
type: "video/avi"
__proto__: Blob
arrayBuffer: ƒ arrayBuffer()
arguments: (...)
caller: (...)
length: 0
name: "arrayBuffer"
__proto__: ƒ ()
[[Scopes]]: Scopes[0]
size: (...)
slice: ƒ slice()
stream: ƒ stream()
text: ƒ text()
type: (...)
constructor: ƒ Blob()
Symbol(Symbol.toStringTag): "Blob"
get size: ƒ size()
get type: ƒ type()
__proto__: Object

这里的 blob 是

function myFunction() {
var x = document.getElementById("myRange").value;
if (x = "50") {
document.getElementById("text").innerHTML = "new";
}
}