flv.js视频流组件使用

<template>
  <div class="video" :style="{ height: voidHeight }">
    <video ref="videoElement"  muted controls autoplay controlslist="nodownload noplaybackrate noremoteplayback" disablePictureInPicture="true" v-if="!imgError">video>
    <div class="img_error" v-if="imgError">
      <p>无法连接相关设备p>
    div>
  div>
template>

<script>
import flvjs from "flv.js";
export default {
  name: "assemblyFlv",
  props: ["url", "height", "destroy","playon"], // 视频流路径，播放器高度，是否销毁播放器
  data() {
    return {
      flvPlayer: "",
      imgError: false,
      voidHeight: "",
      playOn:true
    };
  },
  mounted() {
    // 判断是否传入高度，如果没有，高度100%
    this.height ? (this.voidHeight = this.height) : (this.voidHeight = "100%");
    // 页面加载完成后，初始化
    this.$nextTick(() => {
      this.init(this.url);
    });
  },
  methods: {
    // 初始化
    init(source) {
      if (flvjs.isSupported()) {
        this.flvPlayer = flvjs.createPlayer(
          {
            type: "flv",
            url: source,
            isLive: true,
          },
          {
            enableWorker: false, //不启用分离线程
            enableStashBuffer: false, //关闭IO隐藏缓冲区
            reuseRedirectedURL: true, //重用301/302重定向url，用于随后的请求，如查找、重新连接等。
            autoCleanupSourceBuffer: true, //自动清除缓存
          }
        );
        var videoElement = this.$refs.videoElement;
        this.flvPlayer.attachMediaElement(this.$refs.videoElement);
        if (this.url !== "" && this.url !== null) {
            this.flvPlayer.load();
            //this.flvPlayer.play();
            setTimeout(() => { this.flvPlayer.play(); }, 100);
            // 加载完成
            this.flvPlayer.on(flvjs.Events.LOADING_COMPLETE, () => {
              this.imgError = false;
            });

            // 加载失败
            this.flvPlayer.on(
              flvjs.Events.ERROR,
              () => {
                if (this.flvPlayer) {
                    this.reloadVideo(this.flvPlayer);
                }else{
                  this.imgError = true;
                }
              },
              (error) => {
                console.log(error);
              }
            );

            this.flvPlayer.on(flvjs.Events.STATISTICS_INFO, (res) =>{
                if(this.playon != false){
                   if (this.lastDecodedFrame == 0) {
                     this.lastDecodedFrame = res.decodedFrames;
                     console.log(this.lastDecodedFrame)
                     return;
                   }
                   if (this.lastDecodedFrame != res.decodedFrames) {
                     this.lastDecodedFrame = res.decodedFrames;
                   } else {
                       this.lastDecodedFrame = 0;
                       console.log('卡住重连')
                       if (this.flvPlayer) {
                         this.reloadVideo(this.flvPlayer);
                         console.log('卡住重连完成')
                     }
                   }
                  }
                 });

            videoElement.addEventListener("progress", () => {
              if(videoElement.buffered.length != 0){
                let end = videoElement.buffered.end(0); //获取当前buffered值(缓冲区末尾)
                let delta = end - videoElement.currentTime; //获取buffered与当前播放位置的差值

                // 延迟过大，通过跳帧的方式更新视频
                if (delta > 10 || delta < 0) {
                  this.flvPlayer.currentTime = this.flvPlayer.buffered.end(0) - 1;
                  console.log('跳帧')
                  return;
                }
                // 追帧
                if (delta > 1) {
                  videoElement.playbackRate = 1.1;
                  console.log('追帧')
                } else {
                  videoElement.playbackRate = 1;
                  console.log('正常')
                }
              }
            });

            // 点击播放按钮后，更新视频
            videoElement.addEventListener("play", () => {
              if(videoElement.buffered.length > 0){
              let end = videoElement.buffered.end(0) - 1;
              this.flvPlayer.currentTime = end;
              console.log('播放最新')
              }
            });
            // 网页重新激活后，更新视频
            window.onfocus = () => {
              if(videoElement.buffered.length > 0){
                let end1 = videoElement.buffered.end(0) - 1;
                this.flvPlayer.currentTime = end1;
                console.log('页面切换')
              }
            };




        }

      } else {
        this.imgError = true;
      }
    },
    //断线重连
    reloadVideo(flvPlayer) {
          this.detachMediaElement();
          this.init(this.url);
          console.log('断线重连')
    },
    // 销毁
    detachMediaElement() {
      this.flvPlayer.pause();
      this.flvPlayer.unload();
      this.flvPlayer.detachMediaElement();
      this.flvPlayer.destroy();
      this.flvPlayer = "";
    },
  },
  watch: {
    url() {
      this.imgError = false;
      // 切换流之前，判断之前的流是否销毁
      this.flvPlayer == "" ? "" : this.detachMediaElement();
      // 初始化
      this.init(this.url);
    },
    destroy() {
      // 传入开关值
      if (this.destroy) {
        this.init(this.url);
      } else {
        this.flvPlayer == "" ? "" : this.detachMediaElement();
      }
    },
    playon() {
      this.reloadVideo(this.flvPlayer);
    }
  },
  beforeDestroy() {
    this.detachMediaElement();
  },
};
script>

<style scoped>
.video {
  position: relative;
  height: 100%;
}
.video video {
  width: 100%;
  height: 100%;
  object-fit: fill;
}
.video video::-webkit-media-controls-play-button{
  display: none;
}
.video video::-webkit-media-controls-toggle-closed-captions-button {
    display: none;
}
.video video::-webkit-media-controls-timeline {
    display: none;
}
.video video::-webkit-media-controls-current-time-display {
    display: none;
}
.video video::-webkit-media-controls-time-remaining-display {
    display: none;
}
.img_error {
  position: absolute;
  top: 30%;
  left: 50%;
  margin-left: -120px;
  text-align: center;
}
.img_error > img {
  margin-bottom: 1em;
}
.img_error > p {
  color: #00fdff;
  font-weight: bold;
  font-size: 1.2em;
}
style>

欢迎大家补充说明，或提出问题。