EasyDSS高性能RTMP、HLS(m3u8)、HTTPFLV、RTSP流媒体服务器前端源码重构(四) webpack + video.js 打造流媒体服务器前端
EasyPlayer播放器是基于EasyDSS流媒体服务器视频强大的后台管理能力,提供视频点播和直播播放能力的强大播放载体。流畅稳定的播放性能,集广告植入、数据监测等功能于一身,为开发者提供端到端的一站式品视频直播解决方案。覆盖多类应用场景,包括Web、H5、iOS、Android等多平台终端,提供快速接入的js代码和SDK,满足客户多样需求,让客户轻松聚焦于业务发展本身,畅享极速高清播放新体验。
video.js 介绍
Video.js – open source HTML5 & Flash video player
作为一款高性能流媒体服务器的前端, 必不可少会用到流媒体播放器. 在播放器的选择上, 我们选中了功能强大并且开源的 video.js . 它可以用来播放 RTMP/HLS 直播流.
本篇介绍在 webpack 中集成 video.js 播放器组件, 我们将要完成一个 HLS 播放器
的小例子. 先来看一下效果图吧:
安装 video.js
我们要开发的 HLS 播放器 需要用到 video.js 的一个官方插件: videojs-contrib-hls
尽管 video.js 官方文档中给出了 webpack 集成的说明(http://docs.videojs.com/tutorial-webpack.html), 但是在实际开发过程中, 我还是和其他人一样遇到了很多坑(https://github.com/videojs/videojs-contrib-hls/issues/600) 最后, 算是将 video.js 集成好, 却发现插放 HLS 流, 不能切换到 Flash 模式. 最终, 我决定采用外部依赖的方式集成 video.js, 正好借此熟悉一下 webpack externals 的用法. 这里介绍的也就是 “外部依赖法”.
既是”外部依赖法”, 那我们首先把外部依赖的 video.js 文件准备好. 在 src 目录下新建 externals 目录, 把事先下载好的 video-js-5.19.2 目录文件拷贝到这里.
修改 template.html 如下:
<html>
<head>
<title><%= htmlWebpackPlugin.options.title %></title>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no" name="viewport">
<!-- video.js -->
<link rel="stylesheet" href="/video-js-5.19.2/video-js.css"/>
<script src="/video-js-5.19.2/video.js"></script>
<script src="/video-js-5.19.2/videojs-contrib-hls4.js"></script>
</head>
<body class="skin-green sidebar-mini">
<div id="app"></div>
</body>
</html>
修改 webpack.dll.config.js 如下:
const HtmlWebpackPlugin = require(\'html-webpack-plugin\');
const CleanWebpackPlugin = require(\'clean-webpack-plugin\');
const CopyWebpackPlugin = require(\'copy-webpack-plugin\');
const webpack = require(\'webpack\');
const path = require(\'path\');
function resolve(dir) {
return path.resolve(__dirname, dir)
}
module.exports = {
entry: {
//提取共用组件, 打包成 vendor.js
vendor: [\'jquery\', \'vue\', \'vuex\', \'babel-polyfill\',
\'font-awesome/css/font-awesome.css\', \'admin-lte/bootstrap/css/bootstrap.css\',
\'admin-lte/dist/css/AdminLTE.css\', \'admin-lte/dist/css/skins/_all-skins.css\',
\'admin-lte/bootstrap/js/bootstrap.js\', \'admin-lte/dist/js/app.js\']
},
output: {
path: resolve(\'dll\'),
filename: \'js/[name].[chunkhash:8].js\',
library: \'[name]_library\'
},
resolve: {
extensions: [\'.js\', \'.vue\', \'.json\'],
alias: {
\'vue$\': \'vue/dist/vue.common.js\',
\'jquery$\': \'admin-lte/plugins/jQuery/jquery-2.2.3.min.js\'
}
},
module: {
rules: [{
test: /\.css$/,
loader: \'style-loader!css-loader\'
},
{
test: /\.(png|jpe?g|gif|svg)(\?.*)?$/,
loader: \'url-loader?limit=10000&name=images/[name].[hash:8].[ext]\'
},
{
test: /\.(woff2?|eot|ttf|otf)(\?.*)?$/,
loader: \'url-loader?limit=10000&name=fonts/[name].[hash:8].[ext]\'
},
{
test: /\.(mp4|webm|ogg|mp3|wav|flac|aac)(\?.*)?$/,
loader: \'url-loader?limit=10000&name=media/[name].[hash:8].[ext]\'
}]
},
plugins: [
new webpack.ProvidePlugin({
$: \'jquery\',
jQuery: \'jquery\',
"window.jQuery": \'jquery\',
"window.$": \'jquery\'
}),
new CleanWebpackPlugin([\'dll\']),
new CopyWebpackPlugin([
{ from: \'src/externals\' }
]),
new webpack.DllPlugin({
path: resolve("dll/[name]-manifest.json"),
name: "[name]_library",
context: __dirname
}),
new HtmlWebpackPlugin({
filename: \'template.html\',
title: \'<%= htmlWebpackPlugin.options.title %>\',
inject: \'head\',
chunks: [\'vendor\'],
template: \'./src/template.html\',
minify: {
removeComments: true,
collapseWhitespace: false
}
})
]
}
引入 CopyWebpackPlugin 将 externals 目录下的外部依赖文件拷贝到 dll 目录, 最终, 这些外部依赖文件将被拷贝到发布目录下
修改 webpack.config.js 如下:
const HtmlWebpackPlugin = require(\'html-webpack-plugin\');
const CleanWebpackPlugin = require(\'clean-webpack-plugin\');
const CopyWebpackPlugin = require(\'copy-webpack-plugin\');
const webpack = require(\'webpack\');
const path = require(\'path\');
require("babel-polyfill");
function resolve(dir) {
return path.resolve(__dirname, dir)
}
module.exports = {
//定义页面的入口, 因为js中将要使用es6语法, 所以这里需要依赖 babel 垫片
entry: {
index: [\'babel-polyfill\', \'./src/index.js\'],
player: [\'babel-polyfill\', \'./src/player.js\'],
about: [\'babel-polyfill\', \'./src/about.js\']
},
output: {
path: resolve(\'dist\'), // 指示发布目录
filename: \'js/[name].[chunkhash:8].js\' //指示生成的页面入口js文件的目录和文件名, 中间包含8位的hash值
},
externals: {
//video.js 作为外部资源引入
\'video.js\': \'videojs\'
},
//下面给一些常用组件和目录取别名, 方便在js中 import
resolve: {
extensions: [\'.js\', \'.vue\', \'.json\'],
alias: {
\'vue$\': \'vue/dist/vue.common.js\',
\'jquery$\': \'admin-lte/plugins/jQuery/jquery-2.2.3.min.js\',
\'src\': resolve(\'src\'),
\'assets\': resolve(\'src/assets\'),
\'components\': resolve(\'src/components\')
}
},
module: {
//配置 webpack 加载资源的规则
rules: [{
test: /\.js$/,
loader: \'babel-loader\',
include: [resolve(\'src\')]
}, {
test: /\.vue$/,
loader: \'vue-loader\'
}, {
test: /\.css$/,
loader: \'style-loader!css-loader\'
},
{
test: /\.less$/,
loader: "less-loader"
},
{
test: /\.(png|jpe?g|gif|svg)(\?.*)?$/,
loader: \'url-loader?limit=10000&name=images/[name].[hash:8].[ext]\'
},
{
test: /\.(woff2?|eot|ttf|otf)(\?.*)?$/,
loader: \'url-loader?limit=10000&name=fonts/[name].[hash:8].[ext]\'
},
{
test: /\.(swf|mp4|webm|ogg|mp3|wav|flac|aac)(\?.*)?$/,
loader: \'url-loader?limit=10000&name=media/[name].[hash:8].[ext]\'
}]
},
plugins: [
//引入全局变量
new webpack.ProvidePlugin({
$: \'jquery\',
jQuery: \'jquery\',
"window.jQuery": \'jquery\',
"window.$": \'jquery\'
}),
new webpack.DllReferencePlugin({
context: __dirname,
manifest: require(\'./dll/vendor-manifest.json\')
}),
new CopyWebpackPlugin([
{ from: \'dll\', ignore: [\'template.html\', \'vendor-manifest.json\'] }
]),
//编译前先清除 dist 发布目录
new CleanWebpackPlugin([\'dist\']),
//生成视频广场首页, 在这个页面中自动引用入口 index --> dist/js/index.[chunkhash:8].js
//以 src/index.html 这个文件作为模板
new HtmlWebpackPlugin({
filename: \'index.html\',
title: \'视频广场\',
inject: true, // head -> Cannot find element: #app
chunks: [\'index\'],
template: \'./dll/template.html\',
minify: {
removeComments: true,
collapseWhitespace: false
}
}),
new HtmlWebpackPlugin({
filename: \'player.html\',
title: \'HLS 播放器\',
inject: true,
chunks: [\'player\'],
template: \'./dll/template.html\',
minify: {
removeComments: true,
collapseWhitespace: false
}
}),
//生成版本信息页面, 在这个页面中自动引用入口 about --> dist/js/about.[chunkhash:8].js
//以 src/index.html 这个文件作为模板
new HtmlWebpackPlugin({
filename: \'about.html\',
title: \'版本信息\',
inject: true,
chunks: [\'about\'],
template: \'./dll/template.html\',
minify: {
removeComments: true,
collapseWhitespace: false
}
})
]
};
重点是在 externals 块下面声明 videojs 作为外部资源使用
然后, 我们添加一个新的静态页面配置, 用做 HLS 播放器的入口
添加左侧菜单项
打开 src/store/index.js, 修改如下:
import Vue from "vue";
import Vuex from "vuex";
Vue.use(Vuex);
const store = new Vuex.Store({
state: {
logoText: "EasyDSS",
logoMiniText: "DSS",
menus: [
{
path: "/index.html",
icon: "mouse-pointer",
text: "视频广场"
}, {
path: "/player.html",
icon: "play",
text: "HLS 播放器"
}, {
path: "/about.html",
icon: "support",
text: "版本信息"
}
]
},
getters : {
},
mutations: {
},
actions : {
}
})
export default store;
编写HLS 播放器 页面
将 video.js 简单封装成组件, 新建 src/compontents/VideoJS.vue
<template>
<div class="player-wrapper">
<div class="video-wrapper" style="padding-bottom:55%;position:relative;margin:0 auto;overflow:hidden;">
<div class="video-inner" style="position:absolute;top:0;bottom:0;left:0;right:0;">
</div>
</div>
</div>
</template>
<script>
videojs.options.flash.swf = \'/video-js-5.19.2/video-js-fixed.swf\';
videojs.options.techOrder = [\'html5\', \'flash\'];
if (videojs.browser.IE_VERSION) { // if IE use flash first
videojs.options.techOrder = [\'flash\', \'html5\'];
}
export default {
data() {
return {
player: null
}
},
props: {
videoUrl: {
default: ""
},
autoplay: {
default: true
}
},
beforeDestroy() {
this.destroyVideoJS();
},
deactivated() {
this.destroyVideoJS();
},
watch: {
videoUrl: function(val) {
this.destroyVideoJS();
this.initVideoJS();
}
},
mounted() {
this.initVideoJS();
},
computed: {
type() {
let _type = "application/x-mpegURL";
if (this.rtmp) {
_type = "rtmp/mp4";
}
return _type;
},
rtmp() {
return (this.src || "").indexOf("rtmp") == 0;
},
src() {
if (!this.videoUrl) {
return "";
}
if (this.videoUrl.indexOf("/") === 0) {
return location.protocol + "//" + location.host + this.videoUrl;
}
return this.videoUrl;
},
videoHtml() {
return `
<video class="video-js vjs-default-skin vjs-big-play-centered" style="width: 100%; height: 100%;" controls preload="none">
<source src="${this.src}" type="${this.type}"></source>
<p class="vjs-no-js">
To view this video please enable JavaScript, and consider upgrading to a web browser that
<a href="http://videojs.com/html5-video-support/" target="_blank">
supports HTML5 video
</a>
</p>
</video>
`;
}
},
methods: {
destroyVideoJS() {
if (this.player) {
this.player.dispose();
this.player = null;
}
},
initVideoJS() {
$(this.$el).find(".video-inner").empty().append(this.videoHtml);
if (!this.src) {
return;
}
if (this.rtmp) {
this.player = videojs($(this.$el).find("video")[0], {
notSupportedMessage: \'您的浏览器没有安装或开启Flash\',
tech: [\'flash\'],
autoplay: this.autoplay
});
this.player.on("error", e => {
var $e = $(this.$el).find(".vjs-error .vjs-error-display .vjs-modal-dialog-content");
var $a = $("<a href=\'http://www.adobe.com/go/getflashplayer\' target=\'_blank\'></a>").text($e.text());
$e.empty().append($a);
})
} else {
this.player = videojs($(this.$el).find("video")[0], {
autoplay: this.autoplay
});
}
}
}
}
</script>
封装 video.js api
编写播放器弹出框组件, 新建 src/components/VideoDlg.vue
<template>
<div class="modal fade" data-keyboard="false" data-backdrop="static">
<div class="modal-dialog modal-lg">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
<h4 class="modal-title text-success text-center">{{videoTitle}}</h4>
</div>
<div class="modal-body">
<VideoJS v-if="bShow" :videoUrl="videoUrl"></VideoJS>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">关闭</button>
</div>
</div>
</div>
</div>
</template>
<script>
import VideoJS from \'./VideoJS.vue\'
export default {
data() {
return {
videoUrl: "",
videoTitle: "",
bShow: false
}
},
mounted() {
$(document).on("hide.bs.modal", this.$el, () => {
this.bShow = false;
}).on("show.bs.modal", this.$el, () => {
this.bShow = true;
})
},
components: { VideoJS },
methods: {
play(src,title) {
this.videoUrl = src||"";
this.videoTitle = title||"";
$(this.$el).modal("show");
}
}
}
</script>
封装 bootstrap 模态框
编写HLS播放器页面内容, 新建 src/components/Player.vue
<template>
<div class="container-fluid no-padding">
<br>
<div class="col-sm-8 col-sm-offset-2">
<form role="form" class="form-horizontal" id="url-form">
<div class="form-group">
<div class="input-group" id="input-url-group">
<input type="text" class="form-control" id="input-url" name="url" placeholder="输入播放地址" v-model.trim="url" @keydown.enter.prevent="play">
<span class="input-group-btn">
<a class="btn btn-primary" role="button" @click.prevent="play">
<i class="fa fa-play"></i> 播放</a>
</span>
</div>
</div>
</form>
</div>
</div>
</template>
<script>
import Vue from \'vue\'
import { Message } from \'element-ui\'
Vue.prototype.$message = Message;
export default {
data() {
return {
url: ""
}
},
methods: {
play() {
if (!this.url) {
this.$message({
type: \'error\',
message: "播放地址不能为空"
});
return;
}
this.$emit("play", { videoUrl: this.url, videoTitle: this.url});
}
}
}
</script>
这里顺带演示了 element-ui 的 Message 用法
点击播放按钮, 消息向父组件传递, 播放地址作为参数一起传递
编写入口 js , 新建 src/player.js
import Vue from \'vue\'
import store from "./store";
import AdminLTE from \'./components/AdminLTE.vue\'
import Player from \'./components/Player.vue\'
import VideoDlg from \'./components/VideoDlg.vue\'
new Vue({
el: \'#app\',
store,
template: `
<AdminLTE>
<VideoDlg ref="videoDlg"></VideoDlg>
<Player @play="play"></Player>
</AdminLTE>`,
components: {
AdminLTE, Player, VideoDlg
},
methods: {
play(video){
this.$refs.videoDlg.play(video.videoUrl, video.videoTitle);
}
}
})
接收 Player 组件传来的播放消息, 打开播放器弹出框, 完成视频播放
运行
我们修改了 template.html 和 webpack.dll.config.js , 所以先要重新 build 共用组件库
npm run dll
然后
npm run start
源码位置: https://github.com/easydss/easydss-web-src/tree/blog_4
EasyPlayer播放器特点
关于EasyDSS
EasyDSS(http://www.easydss.com)流媒体解决方案采用业界优秀的流媒体框架模式设计,服务运行轻量、高效、稳定、可靠、易维护,支持RTMP直播、RTMP推送、HTTP点播、HTTP-FLV直播、HLS直播,并支持关键帧缓冲,画面秒开等多种特性,能够接入Web、Android、iOS、H5、微信等全平台客户端,是移动互联网时代贴近企业点播/直播需求的一款接地气的流媒体服务器,配套OBS、EasyRTMP等直播推流工具以及EasyPlayer等网络播放器,可以形成一套完整的视频直播、录播解决方案,满足用户在各种行业场景的流媒体业务需求。
原文链接:https://www.cnblogs.com/babosa/p/11123997.html
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