蓁祎家进步中

# videojs

🔝🔝多媒体相关 | Gitub

# 安装

cnpm install --save video.js flv.js videojs-flvjs-es6
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  • flv.js支持flv类型文件或者流的播放

当前项目中执行cnpm install --save videojs-contrib-hls，依然可以播放m3u8的视频

# 开发步骤

    // wrap the player in a div with a `data-vjs-player` attribute
    // so videojs won't create additional wrapper in the DOM
    // see https://github.com/videojs/video.js/pull/3856
<div data-vjs-player>
    <video ref={node => this.videoNode = node} className="video-js vjs-default-skin video"
            autoPlay="autoplay"/>
</div>

// 或者
<div data-vjs-player>
    <video id={`video${containerId}`} className="video-js vjs-default-skin video"
            autoPlay="autoplay"/>
</div>
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播放并切换地址播放

import videojs from 'video.js';
import 'videojs-flvjs-es6';
import 'video.js/dist/video-js.min.css';
// Don't forget to include the Video.js CSS, located at video.js/dist/video-js.css.

/**
 * videoJs属性
 */
const videoJsOptions = ({ height = 520 }) => ({
    // techOrder: ['html5', 'Flvjs'],For v5 the tech must be added to the tech order.For v6 this is not needed.
    flvjs: {
      mediaDataSource: {
        isLive: true,
        cors: true,
        withCredentials: false,
      },
    },
    autoplay: true,
    controls: true,
    height,
});

this.setState({ videoPlayer: videojs(this.videoNode, videoJsOptions({})) });
// 或者
useEffect(() => {
setVideoPlayer(videojs(`video${containerId}`, { ...videoJsOptions({ height: 180 }), width: 290 }))
return () => {
    videoPlayer.dispose();
    setVideoPlayer(null);
}
}, []);

videoPlayer.reset();
videoPlayer.src({
src: finalUrl,
type: findVideoSrcType(finalUrl),
});
videoPlayer.load();
videoPlayer.play();
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# videojs初始化方式

返回顶部

# 直接在<video>中初始化

<video
    id="my-player"
    class="video-js"
    controls
    preload="auto"
    poster="//vjs.zencdn.net/v/oceans.png"
    width="600"
    height="400"
    data-setup='{}'>
  <source src="//vjs.zencdn.net/v/oceans.mp4" type="video/mp4"></source>
  <source src="//vjs.zencdn.net/v/oceans.webm" type="video/webm"></source>
  <source src="//vjs.zencdn.net/v/oceans.ogv" type="video/ogg"></source>
  <p class="vjs-no-js">
    To view this video please enable JavaScript, and consider upgrading to a
    web browser that
    <a href="https://videojs.com/html5-video-support/" target="_blank">
      supports HTML5 video
    </a>
  </p>
</video>
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# 在js中初始化

<!-- vjs-big-play-centered可使大的播放按钮居住，vjs-fluid可使视频占满容器 -->
<video id="myVideo" class="video-js vjs-big-play-centered vjs-fluid">
  <p class="vjs-no-js">
    To view this video please enable JavaScript, and consider upgrading to a
    web browser that
    <a href="https://videojs.com/html5-video-support/" target="_blank">
      supports HTML5 video
    </a>
  </p>
</video>

<script>
var player = videojs(document.getElementById('myVideo'), {
  controls: true, // 是否显示控制条
  poster: 'xxx', // 视频封面图地址
  preload: 'auto',
  autoplay: false,
  fluid: true, // 自适应宽高
  language: 'zh-CN', // 设置语言
  muted: false, // 是否静音
  inactivityTimeout: false,
  controlBar: { // 设置控制条组件
    /* 设置控制条里面组件的相关属性及显示与否
    'currentTimeDisplay':true,
    'timeDivider':true,
    'durationDisplay':true,
    'remainingTimeDisplay':false,
    volumePanel: {
      inline: false,
    }
    */
    /* 使用children的形式可以控制每一个控件的位置，以及显示与否 */
    children: [
      {name: 'playToggle'}, // 播放按钮
      {name: 'currentTimeDisplay'}, // 当前已播放时间
      {name: 'progressControl'}, // 播放进度条
      {name: 'durationDisplay'}, // 总时间
      { // 倍数播放
        name: 'playbackRateMenuButton',
        'playbackRates': [0.5, 1, 1.5, 2, 2.5]
      },
      {
        name: 'volumePanel', // 音量控制
        inline: false, // 不使用水平方式
      },
      {name: 'FullscreenToggle'} // 全屏
    ]
  },
  sources:[ // 视频源
      {
          src: '//vjs.zencdn.net/v/oceans.mp4',
          type: 'video/mp4',
          poster: '//vjs.zencdn.net/v/oceans.png'
      }
  ]
}, function (){
  console.log('视频可以播放了',this);
});
</script>
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# Using a React Component as a Video JS Component

/**
 * EpisodeList.js
 *
 * This is just a plain ol' React component.
 * the vjsComponent methods, player methods etc. are available via
 * the vjsComponent prop (`this.props.vjsComponent`)
 */
import React, { Component, PropTypes } from 'react';

class EpisodeList extends Component {
  render() {
    return (
      <div>
        <h1>{this.props.body}</h1>
      </div>
    );
  }
}


/**
 * vjsEpisodeList.js
 *
 * Here is where we register a Video JS Component and
 * mount the React component to it when the player is ready.
 */
import EpisodeList from './EpisodeList';
import ReactDOM from 'react-dom';
import videojs from 'video.js';

const vjsComponent = videojs.getComponent('Component');

class vjsEpisodeList extends vjsComponent {

  constructor(player, options) {
    super(player, options);

    /* Bind the current class context to the mount method */
    this.mount = this.mount.bind(this);

    /* When player is ready, call method to mount React component */
    player.ready(() => {
      this.mount();
    });
    
    /* Remove React root when component is destroyed */
    this.on("dispose", () => {
      ReactDOM.unmountComponentAtNode(this.el())
    });
  }

  /**
   * We will render out the React EpisodeList component into the DOM element
   * generated automatically by the VideoJS createEl() method.
   *
   * We fetch that generated element using `this.el()`, a method provided by the
   * vjsComponent class that this class is extending.
   */
  mount() {
    ReactDOM.render(<EpisodeList vjsComponent={this} body="Episodes" />, this.el() );
  }
}

/**
 * Make sure to register the vjsComponent so Video JS knows it exists
 */
vjsComponent.registerComponent('vjsEpisodeList', vjsEpisodeList);

export default vjsEpisodeList;


/**
 * VideoPlayer.js
 * Check the above example for how to integrate the rest of this class.
 */

// ...
  componentDidMount() {
    // instantiate Video.js
    this.player = videojs(this.videoNode, this.props, function onPlayerReady() {
      console.log('onPlayerReady', this)
    });

    /**
     * Fetch the controlBar component and add the new vjsEpisodeList component as a child
     * You can pass options here if desired in the second object.
     */
    this.player.getChild('controlBar').addChild('vjsEpisodeList', {});
  }
// ...
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# controlBar组件说明

playToggle, //播放暂停按钮
volumeMenuButton,//音量控制
currentTimeDisplay,//当前播放时间
timeDivider, // '/' 分隔符
durationDisplay, //总时间
progressControl, //点播流时，播放进度条，seek控制
liveDisplay, //直播流时，显示LIVE
remainingTimeDisplay, //当前播放时间
playbackRateMenuButton, //播放速率，当前只有html5模式下才支持设置播放速率
fullscreenToggle //全屏控制
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currentTimeDisplay,timeDivider,durationDisplay是相对于 remainingTimeDisplay的另一套组件，后者只显示当前播放时间，前者还显示总时间。若要显示成前者这种模式，即 '当前时间/总时间'，可以在初始化播放器选项中配置：

# videojs样式修改

.video-js{ /* 给.video-js设置字体大小以统一各浏览器样式表现，因为video.js采用的是em单位 */
  font-size: 14px;
}
.video-js button{
  outline: none;
}
.video-js.vjs-fluid,
.video-js.vjs-16-9,
.video-js.vjs-4-3{ /* 视频占满容器高度 */
  height: 100%;
  background-color: #161616;
}
.vjs-poster{
  background-color: #161616;
}
.video-js .vjs-big-play-button{ /* 中间大的播放按钮 */
  font-size: 2.5em;
  line-height: 2.3em;
  height: 2.5em;
  width: 2.5em;
  -webkit-border-radius: 2.5em;
  -moz-border-radius: 2.5em;
  border-radius: 2.5em;
  background-color: rgba(115,133,159,.5);
  border-width: 0.12em;
  margin-top: -1.25em;
  margin-left: -1.75em;
}
.video-js.vjs-paused .vjs-big-play-button{ /* 视频暂停时显示播放按钮 */
  display: block;
}
.video-js.vjs-error .vjs-big-play-button{ /* 视频加载出错时隐藏播放按钮 */
  display: none;
}
.vjs-loading-spinner { /* 加载圆圈 */
  font-size: 2.5em;
  width: 2em;
  height: 2em;
  border-radius: 1em;
  margin-top: -1em;
  margin-left: -1.5em;
}
.video-js .vjs-control-bar{ /* 控制条默认显示 */
  display: flex;
}
.video-js .vjs-time-control{display:block;}
.video-js .vjs-remaining-time{display: none;}

.vjs-button > .vjs-icon-placeholder:before{ /* 控制条所有图标，图标字体大小最好使用px单位，如果使用em，各浏览器表现可能会不大一样 */
  font-size: 22px;
  line-height: 1.9;
}
.video-js .vjs-playback-rate .vjs-playback-rate-value{
  line-height: 2.4;
  font-size: 18px;
}
/* 进度条背景色 */
.video-js .vjs-play-progress{
  color: #ffb845;
  background-color: #ffb845;
}
.video-js .vjs-progress-control .vjs-mouse-display{
  background-color: #ffb845;
}
.vjs-mouse-display .vjs-time-tooltip{
  padding-bottom: 6px;
  background-color: #ffb845;
}
.video-js .vjs-play-progress .vjs-time-tooltip{
  display: none!important;
}
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# videojs动态切换视频源

<script>
  var data = {
    src: 'xxx.mp4',
    type: 'video/mp4'
  };
  var player = videojs('myVideo', {...});
  player.pause();
  player.reset(); //重置 video,已经开始播放的播放器需重置播放器
  player.src(data);
  player.load(data);
  // 动态切换poster
  player.posterImage.setSrc('xxx.jpg');
  player.play();

  // 销毁videojs,此方法会清除掉<video>组件
  //player.dispose();
</script>
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# videojs自定义播放按钮


registerControlComponent() {
    const self = this;
    const Component = videojs.getComponent("Component");
    const Button = videojs.getComponent("Button");

    class ControlBtn extends Button {
    constructor(player, options = {}) {
        super(player, options);

        this.on(player, "play", this.handlePlay);
        this.on(player, "pause", this.handlePaused);
        this.on(this.el(), ["click", "tap"], this.handleControlClick);
    }
    buildCSSClass() {
        return "vjs-control-btn vjs-paused";
        // return `vjs-play-control ${super.buildCSSClass()}`
    }
    handlePlay(e) {
        // this.removeClass('vjs-ended')
        this.removeClass("vjs-paused");
        this.addClass("vjs-playing");
        this.controlText("Pause");
        // self.$emit('play')
    }
    handlePaused(e) {
        this.removeClass("vjs-playing");
        this.addClass("vjs-paused");
        this.controlText("Play");
        // self.$emit('play')
    }
    handleControlClick(e) {
        // console.log(this)
        this.player_.paused() ? this.player_.play() : this.player_.pause();
        // self.$emit('play')
    }
    getPlayStatus() {
        return "status";
    }
    }

    Component.registerComponent("ControlBtn", ControlBtn);
},
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# videojs销毁dispose

dispose()从播放器中删除所有事件侦听器。删除播放器的DOM元素，所以再次初始化的时候需要我们重新创建标签

<div class="video-box">
    <video id="video" class="video-js vjs-default-skin vjs-big-play-centered" controls preload="none"></video>
</div>
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if (this.myPlayer) {
    this.myPlayer.dispose();
    $(".video-box").html('<video id="video" class="video-js vjs-default-skin" controls width="640" height="264"></video>');
}
this.$nextTick(() => {
    this.myPlayer = videojs('video', {
        //确定播放器是否具有用户可以与之交互的控件。没有控件，启动视频播放的唯一方法是使用autoplay属性或通过Player API。
        controls: true,
        //自动播放属性,muted:静音播放
        muted: true,
        autoplay: true,
        //建议浏览器是否应在<video>加载元素后立即开始下载视频数据。
        preload: "auto",
        //设置视频播放器的显示宽度（以像素为单位）
        width: "960px",
        //设置视频播放器的显示高度（以像素为单位）
        height: "522px",
        // url
        // poster: 'https://static.shuxuejia.com/img/video_image.png',
        sources: [{
        src: item.livingPath
        }],
        playbackRates: [0.5, 1, 1.5, 2] //倍速播放

    }, function onPlayerReady() {
        videojs.log('Your player is ready!'); // 比如： 播放量+1请求

        this.on('ended', function() {
            videojs.log('Awww...over so soon?!');
        });
    });
    });
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# vue中使用videojs

<template>
    <video playsinline id="myPlayer" class="video-js vjs-default-skin" width="100%" controls preload="auto" data-setup='{ "aspectRatio":"16:9" }'></video>
</template>

<script>
    window.videojs = require('video.js');

    export default {
        data(){
            return{
                player: '',
                url: 'https://someurl.com',
                volume: 1
            };
        },
        methods: {
            playerInitialize(){ 
                this.player = videojs('myPlayer'); 
            },
            playerDispose(){ 
                this.player.dispose(); 
            },

            playerPlay(){
                this.player.play();
            },
            playerPause(){
                this.player.pause();
            },


            playerSetSrc(url){ 
                this.player.src(url); 
            },
            playerSetVolume(float){
                this.player.volume(float); 
            },
            playerSetPoster(url){ 
                this.player.poster(url); 
            },
            playerSetTime(time){
                this.player.currentTime(time);
            },


            playerEventEnded(){
                console.log('ended');
            },
            playerEventVolume(){ 
                this.volume = this.player.volume(); 
            },
            playerEventError(){ 
                console.log( this.playerGetError() )
            },


            playerGetPaused(){
                return this.player.paused();
            },
            playerGetTime(){
                return this.player.currentTime();
            },
            playerGetError(){
                return this.player.error().message;
            },
            
            
            playerSetupEvents(){
                this.player.on('ended', function(){ var a = window.playerEvents.playerEventEnded(); });
                this.player.on('volumechange', function(){ window.playerEvents.playerEventVolume(); });
                this.player.on('error', function(){ window.playerEvents.playerEventError(); });
            },
        },
        mounted(){
            window.playerEvents = this;
            this.playerInitialize();
            this.playerSetSrc(this.url);
            this.playerSetupEvents();
        },
        beforeDestroy() { 
            this.playerDispose(); 
        }
    }
</script>
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# videojs错误收集

# VIDEOJS: WARN: Player "player3" is already initialised. Options will not be applied

页面加载完毕之后，点击请求，页面重新渲染，展示新的数据，如果再次请求和初始化相同的数据，就会出现这个错误提示，其实就是告诉你ID为player3的视频加载容器已经加载过了，不需要重新加载，这样的话，再次加载不能播放视频。解决的方法是，在页面重新渲染的时候，销毁video.js-dispose()

不能重复调用video作用于同一个video，否则报错.每次离开页面需调用实例的dispose()方法销毁实例后再创建实例

video.js同一个id只能初始化一次，但是在react中，一个组建被重复渲染是一件很平常的事情，因此在react中的video.js很容易遇到VIDEOJS: WARN: Player “id_video” is already initialised. Options will not be applied.这个报错，解决方案就是在适当的时候调用dispose()方法销毁video.js对象：

当然不一定在destroyed()的时候销毁，在“适当的时候”调用dispose()即可，否则同一个id，video.js无法多次渲染。但是dispose方法会将 video元素删除，因此dispose后需要再手动创建一个video，下面看一个可复用vue中使用区分video id的简单例子:

this.video_hash=Math.random().toString(36).substr(2);//刷新video_hash
            
    //利用dom创建video
    let video = document.createElement('video');
    video.setAttribute('id', 'video'+this.rdid+this.video_hash);
    video.className = 'video-js';
    video.setAttribute('ebkit-playsinline', 'true');
    video.setAttribute('playsinline', 'true');
    video.setAttribute('controls', 'true');
    video.setAttribute('preload', 'auto');
    video.setAttribute('poster', this.mediaUrl+'?vframe/jpg/offset/1');//后台返回的mp4路径，获取mp4封面
    let source = document.createElement('source');
    source.setAttribute('type', 'video/mp4');
    source.setAttribute('src', this.mediaUrl);//后台返回的mp4路径
    video.appendChild(source);
    
    this.$refs.mp4_container.appendChild(video);
    
    let player = Video('video'+this.rdid+this.video_hash, { //初始化视频
        width: this.$refs.mp4_container.clientWidth,
    });
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# DOMException: "'#1098942864706113536' is not a valid selector"

video.js 在获取页面元素时使用的是querySelector方法，由于querySelector是按css规范来实现的，所以它传入的字符串中第一个字符不能是数字。

# defaultPlaybackRate unavailable on Html5 playback technology

video被dispose，导致再次加载时失败

# video.js播放全屏，播放完恢复的代码

const options = {
    controls: true,
    poster: detail.cover
}
this.player = videojs('id_video', options, () => {
    this.player.src({
        src: detail.playurl
    })
    // 监听播放
    this.player.on('play', () => {
        const isFullscreen = this.player.isFullscreen()  // 检测满屏
        if (!isFullscreen) {
            this.player.requestFullscreen()  // 进入满屏事件
        }
    })
    // 监听结束
    this.player.on('ended', () => {
        this.player.exitFullScreen()  // 退出满屏事件
    })
})
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