<template>
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<div class="video-player">
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<canvas v-show="showArea" id="area-canvas" ref="areaCanvas" width="960" height="540"></canvas>
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<video ref="videoPlayer" :poster="poster" preload="auto" muted></video>
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<div class="controls">
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<!-- 全屏 -->
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<i class="el-icon-full-screen" @click="fullScreen"></i>
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</div>
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</div>
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</template>
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<script>
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import Wfs from "./wfs";
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import VideoRuleData from "@/Pool/VideoRuleData";
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import TreeDataPool from "@/Pool/TreeData";
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import { getAllPolygon } from "@/api/polygon";
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import polygonCanvas from "@/components/canvas";
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export default {
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name: "CameraPlayer",
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props: {
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wsAddr: {
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type: String,
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// default: "ws://192.168.1.182:10101/ws"
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default: `${location.protocol === "https" ? "wss" : "ws"}://${location.host}/ws`
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},
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cameraName: {
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type: String,
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default: ""
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},
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cameraID: {
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type: String,
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default: "C4668FD0-3CAE-C31F-C21E-28B7001243C4"
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},
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rtspUrl: {
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type: String,
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default: "rtsp://admin:a1234567@192.168.1.201:554/h264/ch1/main/av_stream"
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},
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isRunning: {
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type: Boolean,
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default: false
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},
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isGb: {
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type: Boolean,
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default: false
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},
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showArea: {
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type: Boolean,
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default: false
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}
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},
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computed: {
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poster() {
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return "/images/player/player_poster.gif?t=" + Math.random()
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}
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},
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data() {
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return {
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wfs: {},
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wfsId: 0,
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Camera: new VideoRuleData(),
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showCanvas: true,
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canvasData: {
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line: [],
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rect: [], // {id:'uuid', name: '矩形1', location: [{ x: 20, y: 30 }, { x: 20, y: 60 }, { x: 100, y: 60 }, { x: 100, y: 30 }] }
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arrow: [],
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polygon: []
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},
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//showProportion: 3.2,
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//showProportionY: 3.58,
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// showProportion: 1.036,
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// showProportionY: 1.039,
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showProportion: 1,
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showProportionY: 1,
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canvas: null,
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ctx: null,
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canvasWidth: 0,
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canvasHeight: 0,
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};
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},
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watch: {
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rtspUrl: function (newVal, oldVal) {
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if (newVal !== oldVal) {
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if (this.wfs.config) {
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this.wfs.destroy();
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}
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this.$nextTick(() => {
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this.clickStart();
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});
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}
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}
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},
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methods: {
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checkConnect(id) {
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// console.log(this.wfs)
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if (id !== this.wfsId) {
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return
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}
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if (this.wfs.websocketLoader && this.wfs.websocketLoader.client) {
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if (this.wfs.websocketLoader.client.disconnected) {
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this.clickStart();
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console.log("实时视频已断开，正在重连")
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return
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}
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}
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let _this = this;
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setTimeout(() => {
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_this.checkConnect(id)
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}, 10000)
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},
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clickStart() {
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if (this.rtspUrl == "") {
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return;
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}
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let cameraId = this.cameraID;
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if (cameraId == "") {
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cameraId = this.getUuid();
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}
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if (Wfs.isSupported()) {
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let wsAddr = this.wsAddr;
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let cameraInfo = {
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cameraID: cameraId,
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rtspUrl: this.rtspUrl,
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isRunning: this.isRunning,
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isGb28181: this.isGb
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};
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// let camera = document.getElementById(this.cameraID);
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let camera = this.$refs.videoPlayer;
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this.wfs = new Wfs();
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let randomId = this.getUuid();
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this.wfsId = randomId;
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this.wfs.attachMedia(camera, "chX", "H264Raw", wsAddr, cameraInfo);
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this.checkConnect(randomId)
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}
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},
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getUuid() {
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var s = [];
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var hexDigits = "0123456789abcdefghijkopqrst";
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for (var i = 0; i < 36; i++) {
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s[i] = hexDigits.substr(Math.floor(Math.random() * 0x10), 1);
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}
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s[14] = "4"; // bits 12-15 of the time_hi_and_version field to 0010
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s[19] = hexDigits.substr((s[19] & 0x3) | 0x8, 1); // bits 6-7 of the clock_seq_hi_and_reserved to 01
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s[8] = s[13] = s[18] = s[23] = "-";
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var uuid = s.join("");
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return uuid;
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},
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fullScreen() {
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this.$refs.videoPlayer.webkitRequestFullScreen();
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},
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// 回显cavas数据
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// 点击选中变色 将当前页面所有路径重绘判断当前鼠标的坐标在哪个图形内 如果不传坐标参数就是回显的方法
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clickSelect(e) {
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this.ctx.clearRect(0, 0, this.canvas.width, this.canvas.height);
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let _this = this; // 集合中遍历需要将this转存一下使用
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_this.canvasData.line.forEach(function (v, i) {
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_this.ctx.strokeStyle = "yellow";
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_this.ctx.beginPath();
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_this.ctx.moveTo(v.location[0].x / _this.showProportion, v.location[0].y / _this.showProportion);
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_this.ctx.lineTo(v.location[1].x / _this.showProportion, v.location[1].y / _this.showProportion);
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_this.ctx.stroke();
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_this.canvas.style.cursor = "default";
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});
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_this.canvasData.rect.forEach(function (v, i) {
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_this.ctx.strokeStyle = "yellow";
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_this.ctx.beginPath();
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_this.ctx.moveTo(v.location[0].x / _this.showProportion, v.location[0].y / _this.showProportion);
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_this.ctx.lineTo(v.location[1].x / _this.showProportion, v.location[1].y / _this.showProportion);
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_this.ctx.lineTo(v.location[2].x / _this.showProportion, v.location[2].y / _this.showProportion);
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_this.ctx.lineTo(v.location[3].x / _this.showProportion, v.location[3].y / _this.showProportion);
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_this.ctx.lineTo(v.location[0].x / _this.showProportion, v.location[0].y / _this.showProportion);
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_this.ctx.stroke();
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_this.canvas.style.cursor = "default";
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});
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_this.canvasData.arrow.forEach(function (v, i) {
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_this.ctx.strokeStyle = "yellow";
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_this.drawArrow(
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_this.ctx,
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v.location[0].x / _this.showProportion,
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v.location[0].y / _this.showProportion,
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v.location[1].x / _this.showProportion,
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v.location[1].y / _this.showProportion,
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20,
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30,
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"yellow"
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);
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_this.canvas.style.cursor = "default";
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});
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_this.canvasData.polygon.forEach(function (v, i) {
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if (v.location.length === 0) {
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return;
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}
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_this.ctx.strokeStyle = "yellow";
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_this.ctx.beginPath();
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_this.ctx.moveTo(v.location[0].x / _this.showProportion, v.location[0].y / _this.showProportionY);
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for (let i = 1; i < v.location.length; i++) {
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_this.ctx.lineTo(v.location[i].x / _this.showProportion, v.location[i].y / _this.showProportionY);
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}
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_this.ctx.closePath();
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_this.ctx.stroke();
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_this.canvas.style.cursor = "default";
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});
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},
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// 箭头绘制函数
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drawArrow(ctx, fromX, fromY, toX, toY, theta=30, headlen=10, width=1, color="yellow") {
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// ctx：Canvas绘图环境
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// fromX, fromY：起点坐标（也可以换成p1，只不过它是一个数组）
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// toX, toY：终点坐标 (也可以换成p2，只不过它是一个数组)
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// theta：三角斜边一直线夹角
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// headlen：三角斜边长度
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// width：箭头线宽度
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// color：箭头颜色
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// theta = typeof theta !== "undefined" ? theta : 30;
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// headlen = typeof theta !== "undefined" ? headlen : 10;
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// width = typeof width !== "undefined" ? width : 1;
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// color = typeof color !== "undefined" ? color : "yellow";
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// 计算各角度和对应的P2,P3坐标
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let angle = (Math.atan2(fromY - toY, fromX - toX) * 180) / Math.PI;
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let angle1 = ((angle + theta) * Math.PI) / 180;
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let angle2 = ((angle - theta) * Math.PI) / 180;
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let topX = headlen * Math.cos(angle1);
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let topY = headlen * Math.sin(angle1);
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let botX = headlen * Math.cos(angle2);
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let botY = headlen * Math.sin(angle2);
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ctx.save();
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ctx.beginPath();
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let arrowX = fromX - topX;
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let arrowY = fromY - topY;
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ctx.moveTo(arrowX, arrowY);
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ctx.moveTo(fromX, fromY);
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ctx.lineTo(toX, toY);
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arrowX = toX + topX;
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arrowY = toY + topY;
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ctx.moveTo(arrowX, arrowY);
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ctx.lineTo(toX, toY);
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arrowX = toX + botX;
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arrowY = toY + botY;
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ctx.lineTo(arrowX, arrowY);
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ctx.strokeStyle = color;
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ctx.lineWidth = width;
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ctx.stroke();
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ctx.restore();
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},
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// 回显图形备注
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showRemarks(x, y, remarks) {
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this.ctx.moveTo(x, y - 10); // 因为放大之后是y-20，所以缩小版的为y-10
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this.ctx.fillStyle = "green"; // 设置填充颜色为绿色
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this.ctx.font = '10px "微软雅黑"'; // 设置字体
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this.ctx.textBaseline = "bottom"; // 设置字体底线对齐绘制基线
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this.ctx.textAlign = "left"; // 设置字体对齐的方式
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this.ctx.fillText(remarks, x, y - 10); // 填充文字
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},
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getCanvasData(data) {
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let polyon = { ...data };
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polyon.camera_id = this.Camera.cameraId;
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savePolygon(polyon).then(rsp => {
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this.Camera.getPolygon();
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this.Camera.getCameraTask();
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});
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},
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setWidthHeight(){
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this.canvasWidth = this.$refs.videoPlayer.offsetWidth;
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this.canvasHeight = this.$refs.videoPlayer.offsetHeight;
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console.log(this.canvasWidth,this.canvasHeight)
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},
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async initArea(){
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console.log('init')
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const res = await getAllPolygon({cameraId: this.TreeDataPool.selectedNode.id});
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this.canvasData.line = res.data.line;
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this.canvasData.rect = res.data.rect;
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this.canvasData.arrow = res.data.arrow;
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this.canvasData.polygon = res.data.polygon;
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console.log(this.canvasData)
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this.clickSelect(this.canvasData);
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}
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},
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mounted() {
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this.clickStart();
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this.$nextTick(()=>{
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this.canvas = this.$refs.areaCanvas;
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this.ctx = this.canvas.getContext("2d");
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this.ctx.lineWidth = 1;
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this.initArea();
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})
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},
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beforeDestroy() {
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this.wfs.destroy();
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this.wfsId = "";
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}
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};
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</script>
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<style lang="scss">
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#area-canvas{
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background: transparent;
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position: absolute;
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top: 0;
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left: 0;
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padding: 0;
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width: 100%;
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height: 100%;
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}
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video {
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object-fit: fill;
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width: 100%;
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height: 100%;
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}
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.video-player {
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position: relative;
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width: 100%;
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height: 100%;
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.controls {
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display: none;
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position: absolute;
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bottom: 0%;
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color: #fff;
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width: 100%;
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height: 10%;
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background: -webkit-linear-gradient(rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.9));
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i {
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float: right;
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font-size: 15px;
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margin-right: 7%;
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cursor: pointer;
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}
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i:hover {
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color: rgb(236, 235, 235);
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-moz-box-shadow: 2px 2px 7px #000;
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-webkit-box-shadow: 2px 2px 7px #000;
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box-shadow: 2px 2px 7px #000;
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}
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}
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}
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.video-player:hover {
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.controls {
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display: block;
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}
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}
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</style>
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