react 中使用 video.js 播放 hls(m3u8)格式的视频

程序员文章站 2022-07-08 18:34:07

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react 中使用 video.js 播放 hls(m3u8)格式的视频

简介：公司业务需求，由于后端把 mp4 视频转码成 m3u8 视频供手机端播放，导致后台系统播放不了 m3u8 格式的视频(原来是直接用的原生 video 标签播放)。

项目主要依赖：（先安装，步骤略）

create-react-app：3.0.0

{
  "react": "^16.11.0",
  "react-router-dom": "^5.1.2",
  "antd": "^3.19.2",
  "axios": "^0.19.0",
  "mux.js": "^5.5.1",
  "prop-types": "^15.7.2",
  "video.js": "^7.6.6",
  "videojs-contrib-hls": "^5.15.0",
  "webpack": "^4.41.2"
}

1.组件

文件目录

react 中使用 video.js 播放 hls(m3u8)格式的视频

src/components/VideoPlayer/index.jsx

import React, { Component } from "react";
import PropTypes from "prop-types";

import Videojs from "video.js";

// 添加hls插件，以保证播放m3u8格式的视频
import "videojs-contrib-hls";
// 导入videojs 的样式
import "video.js/dist/video-js.css";
// 自定义样式（见下文）
import "./style.css";

// 给window上添加videojs, zh-CN.js 语言注册依赖 videojs.addLanguage()方法
// 配置了不生效的话  把public/index.html  里的标签  <html lang="en">  </html>   lang设置为 "zh-CN"
window.videojs = Videojs;
import("video.js/dist/lang/zh-CN.js");

class VideoPlayer extends Component {
  static propTypes = {
    // 视频地址
    src: PropTypes.string,
    // 视频高度
    height: PropTypes.string,
    // 视频宽度
    width: PropTypes.string
  };

  // 默认的props
  static defaultProps = {
    src: "",
    height: 360,
    width: 640
  };

  state = {
    videoId: "custom-video" + +new Date()
  };

  // 初始化内容
  UNSAFE_componentWillReceiveProps(props) {
    try {
      const { src } = props;
      if (!src || src === this.props.src) return;
      this.initVideo(src);
    } catch (error) {
      console.log(error);
    }
  }

  componentWillUnmount() {
    // 销毁播放器
    if (this.player) {
      this.player.dispose();
    }
  }

  // 初始化
  initVideo(src) {
    const { videoId } = this.state;
    const { height, width } = this.props;
    this.player = Videojs(videoId, {
      height,
      width,
      controls: true,
      preload: "auto",
      fluid: true
    });

    this.player.src({ src });
  }

  render() {
    const { videoId } = this.state;
    return (
      <div
        className="custom-video-warpper"
        style={{
          display: this.props.src ? "block" : "none"
        }}
      >
        {/* video标签的className一定要是 "video-js",否则样式不生效 */}
        <video id={videoId} className="video-js" />
      </div>
    );
  }
}

export default VideoPlayer;

src/components/VideoPlayer/style.css

.custom-video-warpper {
  margin-bottom: 10px;
}
.custom-video-warpper .video-js {
  border: 1px solid #ccc;
  position: relative;
}
.custom-video-warpper .custom-video-dimensions.vjs-fluid {
  padding-top: 0;
}
.custom-video-warpper .video-js .vjs-big-play-button {
  border-radius: 2em;
  width: 2em;
  height: 2em;
  line-height: 2em;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

2.使用

import React, { Component } from "react";
import VideoPlayer from '@/components/VideoPlayer'


class AppForm extends Component {
  state = {
    videoUrl: ""
  };

  componentDidMount() {
    this.getVideoUrl();
  }

  // 获取VideoUrl
  getVideoUrl = async () => {
    let videoUrl =
      "https://cn7.kankia.com/hls/20191215/f0bdccd9d46df8600c445e8c6b0c3169/1576378697/index.m3u8";

    this.setState({ videoUrl });
  };

  render() {
    const { videoUrl } = this.state;

    return <VideoPlayer src={videoUrl} />;
  }
}

export default AppForm;