vue3使用flv.js播放推流视频的示例代码

    /**
     * @description: 构建播放器
     * @return {*}
     * @Author: liuxin
     */
    function flvCreated() {
      try {
        const videoElement = flvPlayerVideo.value;
        if (flvjs.isSupported() && videoElement) {
          addLog(`flv created,address:${prop.url}`);
          const flvOption = {
            url: prop.url, // 播放地址
            hasAudio: false, // 是否有音频
            hasVideo: true, //是否有视频
            isLive: true, // 是否是直播流，默认 true
            type: "flv", // 是否是直播流，默认 true
            stashInitialSize: 128, // 减少首帧显示等待时长
            ...prop.option,
          };
          state.flvPlayer = flvjs.createPlayer(flvOption, {
            enableWorker: false, // 不启用分离的线程进行转换，之前为true
            enableStashBuffer: false, // 关闭IO隐藏缓冲区
            stashInitialSize: 128, // 减少首帧显示等待时长
            autoCleanupSourceBuffer: true, // 打开自动清除缓存
            fixAudioTimestampGap: false, //false才会音视频同步,新增
            lazyLoad: false, // 去掉懒加载,新增
          });
          state.flvPlayer.attachMediaElement(videoElement);
          state.flvPlayer.load();
          state.flvPlayer.play();
          state.endedReloadFlag = true; // 重置画面停滞的播放状态，下次停滞了会再次打开
          videoElementEvent(); // 手动跳帧，防止延时
          flvPlayerEvent(); // 断流、卡顿处理
        }
      } catch (error) {
        console.error("构建错误", error);
      }
    }

    /**
     * @description: 销毁播放器
     * @return {*}
     * @Author: liuxin
     */
    function flvDestory() {
      if (state.delayTimer) {
        clearTimeout(state.delayTimer); // 清除推迟打开播放器定时器
      }
      if (state.flvPlayer == null) return; // 空对象，不执行销毁
      /* ----- 销毁开始 ----- */
      addLog(`flv destory,address:${prop.url}`);
      try {
        state.flvPlayer.off(flvjs.Events.ERROR, errorHandle);
        if (state.flvPlayer._hasPendingLoad) {
          state.flvPlayer.pause();
          state.flvPlayer.unload();
        }
        state.flvPlayer.detachMediaElement();
        state.flvPlayer.destroy();
        state.flvPlayer = null;
      } catch (error) {
        console.error("销毁错误");
      }
    }

      state.flvPlayer.on(flvjs.Events.STATISTICS_INFO, statisticsInfoHanle); // 断流重连
    /**
     * @description: 视频卡顿，销毁后重建
     * @param {*} errorType
     * @param {*} errorDetail
     * @param {*} errorInfo
     * @return {*}
     * @Author: liuxin
     */
    function statisticsInfoHanle(res) {
      // 初始化播放
      if (state.lastDecodedFrame == 0) {
        state.lastDecodedFrame = res.decodedFrames;
        return;
      }
      // 正常播放
      if (state.lastDecodedFrame != res.decodedFrames) {
        state.lastDecodedFrame = res.decodedFrames;
        state.loading = false; // 去掉loading动画
        state.errorCount = 0; // 错误连接次数归0
      }
      // 播放异常
      else {
        if (state.player) {
          addLog(`Reconnect after video freezes, address:${prop.url}`); // 添加日志
          state.errorCount = 0; // 错误连接次数归0
          state.lastDecodedFrame = 0; // 最后播放编码号
          flvDestory(); // 销毁对象
          flvCreated("statistics_info"); // 创建对象
        }
      }
    }

      state.flvPlayer.on(flvjs.Events.ERROR, errorHandle); // 监听出错消息后，销毁后重连
      state.flvPlayer.on(flvjs.Events.LOADING_COMPLETE, errorHandle); // ctrl+f5刷新，会莫名因为停止end不播放
    /**
     * @description: 错误回调事件
     * @param {*} errorType
     * @param {*} errorDetail
     * @param {*} errorInfo
     * @return {*}
     * @Author: liuxin
     */
    function errorHandle() {
      //视频出错后销毁重新创建 网络错误
      if (state.flvPlayer && state.errorCount <= state.maxReconnectCount) {
        addLog(`Video error ${state.errorCount} reconnection,
            address:${prop.url}`); // 视频报错N重连
        state.loading = true; // 添加loading动画
        state.errorCount++; //错误重连次数+1
        flvDestory();
        flvCreated("ERROR");
      }
      if (state.errorCount > state.maxReconnectCount) {
        state.loading = false; // 去掉loading
      }
    }

     /**
       * @description: 浏览器下载流事件，手动跳帧，防止累计延时
       * @return {*}
       * @Author: liuxin
       */
      videoElement.onprogress = (e) => {
        // 不需要跳帧，如：异常视频   或者没有数据流，则不进行跳帧
        if (!prop.isBufferedEnd || state.flvPlayer.buffered.length <= 0) {
          return;
        }
        state.loading = false;
        /* ----- 跳帧操作 ----- */
        let end = state.flvPlayer.buffered.end(0); //获取当前时间值
        let diff = end - state.flvPlayer.currentTime; //获取相差差值
        // 延迟过大或帧率不正常，通过跳帧的方式更新视频
        if (diff > 20 || diff < 0) {
          // addLog(`Manual frame skipping,address:${prop.url}`); // 添加日志
          state.flvPlayer.currentTime = state.flvPlayer.buffered.end(0) - 0.5; // 手动跳帧到最后
          return;
        }
        // 正常帧率，正常播放
        if (diff <= 1) {
          videoElement.playbackRate = 1;
        }
        // 10秒内的延时，1.1倍速播放
        else if (diff <= 10) {
          // addLog(`Chase frames manually 1.1,address:${prop.url}`); // 手动追帧
          videoElement.playbackRate = 1.1;
        }
        // 20秒内的延时，1.2倍速播放
        else if (diff <= 20) {
          // addLog(`Chase frames manually 1.2,address:${prop.url}`); // 手动追帧
          videoElement.playbackRate = 1.2;
        }
      };

    /**
     * @description: 全屏 / 退出全屏
     * @return {*}
     * @Author: liuxin
     */
    function fullscreenHandle() {
      state.isFlullscreen = !state.isFlullscreen;
      document.addEventListener("keydown", function (e) {
        //此处填写你的业务逻辑即可
        if (e.key == "Escape") {
          e.stopPropagation();
          state.isFlullscreen = false;
        }
      });