错误:应用首次在angular6中加载时，视频无法自动播放 [英] Error: Video not autoplay when app loads for the first time in angular6

问题描述

我正在尝试在应用首次加载时自动播放视频.但是，当应用程序首次在浏览器中打开时，视频不会自动播放.

I am trying to autoplay the video when the app first load. But video is not autoplaying when app first open on browser.

在这里，我有一个链接，但是那里没有任何解决方案，但是仍然没有答案-

Here, I got a link but no solution was there and still unanswered- Video is not playing in angular 4 but refresh page is working

有时会加载视频，有时会不加载视频(在Chrome开发工具中选中时).但是，两种情况下都不是第一次播放视频.

The video is sometimes loaded/ sometimes not (when checked in Chrome Dev Tool). However, video is not playing in either case for the first time.

此处是视频链接: https://stackblitz.com/edit/angular-nezdkr?file=src/app/app.component.html

在Chrome中首次加载应用程序时，它不会自动播放，而在Mozilla firefox中会自动播放.

It does not autoplaying when app first loading in chrome but autoplaying in Mozilla firefox.

注意:我不想显示控件.

Note: I don't want to show controls.

<router-outlet></router-outlet>

app.routing.ts

 {
        path: '',
        redirectTo: 'videoCOmp',
        pathMatch: 'full'
    },
    {
        path: 'videoCOmp',
        component: videoCOmpComponent,
        pathMatch: 'full'
    }

当应用首次加载到浏览器中并路由到videoCOmpComponent时，视频不会自动播放.但是，在重新加载/刷新浏览器后，视频开始播放.

When app first loads on browser and it route to videoCOmpComponent, video is not autoplaying. However, when browser is reloaded/ refreshed, the video starts playing.

    abc0 = true;
    def0 = true;

    abc1 = false;
    def1 = false;

videoPlay: HTMLElementVideoElement;

ngOniInit(){
// I am trying to solve this issue but getting no success:-

 if(this.abc0 && this.def0 ){
  this.videoPlay =  document.querySelector('videoContainer');
 this.videoPlay.play();
  }
}

videoCOmpComponent.html

<div id="video-container" class="video-container" *ngIf="abc0 && def0">
<video id="videoContainer" muted autoplay>
 <source src="../../../../assets/videos/meeting1.mp4" type="video/mp4">
Your browser does not support the video tag.
</video>
</div>
<div *ngIf="abc1 && def1" class="video-container">
<video  muted autoplay="autoplay">
<source src="../../../../assets/videos/meeting2.mp4" type="video/mp4">
Your browser does not support the video tag.
</video>
</div>

推荐答案

我得到了我的问题的答案:-

I got answer to my problem:-

  //autoplay muted onloadedmetadata="this.muted = true"  

<video id="abc" autoplay muted onloadedmetadata="this.muted = true" >
  <source src="https://github.com/mediaelement/mediaelement-files/blob/master/big_buck_bunny.mp4?raw=true" type="video/mp4">
  Your browser does not support the video tag.
</video>

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