vue + typescript + video.js 流媒体播放 视频监控

视频才用流媒体,有后台实时返回数据, 要支持flash播放, 所以需安装对应的flash插件。当视频播放时,每间隔3秒向后台发送请求供检测心跳,表明在线收看状态,需要后台持续发送视频数据。

1. yarn add video.js videojs-flash

2. 创建videp.js声明文件

《vue + typescript + video.js 流媒体播放 视频监控》

3. 创建video_player.vue组件,供外部调用。源码如下

<script lang="ts">
import { Component, Emit, Prop, Vue } from 'vue-property-decorator';

import 'video.js/dist/video-js.css';

import _videojs from 'video.js';
const videojs = (window as any).videojs || _videojs;
import 'videojs-flash';


@Component({
  name: 'video-player',
})
export default class VideoPlayer extends Vue {
  /* ------------------------ INPUT & OUTPUT ------------------------ */
  @Prop({ type: Object, default: () => {}}) private options!: object;

  /* ------------------------ VUEX (vuex getter & vuex action) ------------------------ */

  /* ------------------------ LIFECYCLE HOOKS (created & mounted & ...) ------------------------ */
  private mounted() {
    this.player = videojs(this.$refs.videoPlayer, this.options, function onPlayerReady() {
      // console.log('onPlayerReady');
    });
  }

  private beforeDestroy() {
    if (this.player) {
      this.player.dispose();
    }
  }
  /* ------------------------ COMPONENT STATE (data & computed & model) ------------------------ */
  private player: any;

  /* ------------------------ WATCH ------------------------ */

  /* ------------------------ METHODS ------------------------ */
}

</script>

<template>
<div class="module_video_player">
  <video ref="videoPlayer" class="video-js" autoplay></video>
</div>
</template>

<style lang="stylus" scoped>
@import '~@/assets/styles/var.styl';

.module_video_player
  position relative
  width 780px

</style>

4. 在需要使用的模块(如show_monitor.vue)调用。组件创建后,向后台发送轻轻获取rtmp视频播放地址,并更新videoOptions中的src。触发video_player的创建、挂载等。

import VideoPlayer from '@/components/video_player.vue';

components: {
  VideoPlayer,
}

  private videoOptions = {
    techOrder: ['flash', 'html5'],
    sourceOrder: true,
    flash: {
      hls: { withCredentials: false },
    },
    html5: { hls: { withCredentials: false } },
    sources: [{
      type: 'rtmp/flv',
      src: '', // 'rtmp://live.hkstv.hk.lxdns.com/live/hks2', // 香港卫视,可使用此地址测试
    }],
    autoplay: true,
    controls: true,
    width: '778',
    height: '638',
  };

<video-player :options="videoOptions" v-if="videoOptions.sources[0].src !== ''"></video-player>

5. 心跳检测

在show_monitor.vue创建时,新建定时器,每隔3秒向后台发送一个包含当前监控设备id的请求,告知后台此设备监控被调用播放。show_monitor.vue销毁时,清空定时器,后台将停止传输视频数据。

private intervalFunc: any;

private created() {
 // ****
 this.intervalFunc = setInterval(() => {
    EquipmentService.monitor_continue_test(this.eqmtid);
  }, 3000);
}

private destroyed() {
  clearInterval(this.intervalFunc);
}

注: 可以再电脑安装VLC media player 下载, 播放获取到的rtmp路径,已检测数据获取是否成功

    原文作者:element
    原文地址: https://segmentfault.com/a/1190000019678916
    本文转自网络文章,转载此文章仅为分享知识,如有侵权,请联系博主进行删除。
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