Mp4 video files encoded with mp4v are not supported

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中文用户注意：

1. 尽量用英文描述你的 issue
2. 不要把内容堆彻在标题上，逻辑清晰地写在内容区
3. 贴代码要提前格式化好，有颜色高亮那种，贴文本，不要贴图片
4. 提问题前，必须仔细阅读 REMADE.md + 在已关闭的问题中寻找与自身相关的问题，90% 的可能它已经被解决
5. 如果无法做到提一个合格、优秀的问题，则问题会被 close + block

BUG REPORT TEMPLATE

Vue.js version and component version

2.6.10

Reproduction Link

• A minimal JSBin, JSFiddle, Codepen, or a GitHub repository that can reproduce the bug.
• You could start with this template: https://jsfiddle.net/39epgLj0/

Steps to reproduce

What is Expected?

Mp4 video files encoded with mp4v are not supported prompt the media could not be loaded, either because the server or network failed or because the format is not supported Can't you support it?

What is actually happening?

support and play it

[672064406zerui]

中文: mp4 格式 但是编码是mp4v的 提示the media could not be loaded, either because the server or network failed or because the format is not supported. 是不支持这种编码吗