3 年之前 · c0c6d064bc
--- a/config/index.js
+++ b/config/index.js
@@ -23,8 +23,8 @@ module.exports = {
 
				     },
			
 
				 
			
 
				     // Various Dev Server settings
			
 
				-    host: '192.168.1.113',
			
 
				-    // host: 'localhost', // can be overwritten by process.env.HOST
			
 
				+    // host: '192.168.1.113',
			
 
				+    host: 'localhost', // can be overwritten by process.env.HOST
			
 
				     port: 8001, // can be overwritten by process.env.PORT, if port is in use, a free one will be determined
			
 
				     autoOpenBrowser: true,
			
 
				     errorOverlay: true,
			
--- a/piglet/202107061823/static/js/10.js
+++ b/piglet/202107061823/static/js/10.js
--- a/piglet/202107061823/static/js/11.js
+++ b/piglet/202107061823/static/js/11.js
--- a/piglet/202107061823/static/js/14.js
+++ b/piglet/202107061823/static/js/14.js
--- a/piglet/202107061823/static/js/15.js
+++ b/piglet/202107061823/static/js/15.js
--- a/piglet/202107061823/static/js/3.js
+++ b/piglet/202107061823/static/js/3.js
--- a/piglet/202107061823/static/js/43.js
+++ b/piglet/202107061823/static/js/43.js
--- a/piglet/202107061823/static/js/44.js
+++ b/piglet/202107061823/static/js/44.js
--- a/piglet/202107061823/static/js/46.js
+++ b/piglet/202107061823/static/js/46.js
--- a/piglet/202107061823/static/js/6.js
+++ b/piglet/202107061823/static/js/6.js
--- a/piglet/202107061823/static/js/62.js
+++ b/piglet/202107061823/static/js/62.js
--- a/piglet/202107061823/static/js/63.js
+++ b/piglet/202107061823/static/js/63.js
--- a/piglet/202107061823/static/js/64.js
+++ b/piglet/202107061823/static/js/64.js
--- a/piglet/202107061823/static/js/65.js
+++ b/piglet/202107061823/static/js/65.js
--- a/piglet/202107061823/static/js/7.js
+++ b/piglet/202107061823/static/js/7.js
--- a/piglet/202107061823/static/js/71.js
+++ b/piglet/202107061823/static/js/71.js
--- a/piglet/202107061823/static/js/72.js
+++ b/piglet/202107061823/static/js/72.js
@@ -1 +0,0 @@
 
				-webpackJsonp([72],{NDIb:function(l,e,u){"use strict";Object.defineProperty(e,"__esModule",{value:!0});var n=u("VU/8")(null,null,!1,null,null,null);e.default=n.exports}});
			
--- a/piglet/202107061823/static/js/73.js
+++ b/piglet/202107061823/static/js/73.js
@@ -1 +0,0 @@
 
				-webpackJsonp([73],{"/DMR":function(l,e,u){"use strict";Object.defineProperty(e,"__esModule",{value:!0});var n=u("VU/8")(null,null,!1,null,null,null);e.default=n.exports}});
			
--- a/piglet/202107061823/static/js/74.js
+++ b/piglet/202107061823/static/js/74.js
@@ -1 +0,0 @@
 
				-webpackJsonp([74],{oSbz:function(l,e,u){"use strict";Object.defineProperty(e,"__esModule",{value:!0});var n=u("VU/8")(null,null,!1,null,null,null);e.default=n.exports}});
			
--- a/piglet/202107061823/static/js/8.js
+++ b/piglet/202107061823/static/js/8.js
--- a/piglet/202107061823/static/js/9.js
+++ b/piglet/202107061823/static/js/9.js
--- a/piglet/202107121640/static/camera/image/close.png
+++ b/piglet/202107121640/static/camera/image/close.png
--- a/piglet/202107121640/static/camera/index.html
+++ b/piglet/202107121640/static/camera/index.html
@@ -0,0 +1,122 @@
 
				+<!DOCTYPE html>
			
 
				+<html lang="en">
			
 
				+<head>
			
 
				+    <meta charset="UTF-8">
			
 
				+    <title>player</title>
			
 
				+<!--    <script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/1.0.0/p5.min.js"></script>-->
			
 
				+<!--    <script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/1.0.0/addons/p5.sound.min.js"></script>-->
			
 
				+<!--    <script src="https://unpkg.com/ml5@latest/dist/ml5.min.js"></script>-->
			
 
				+    <style>
			
 
				+        /*.close {*/
			
 
				+        /*    width: 40px;*/
			
 
				+        /*    height: 40px;*/
			
 
				+        /*    background-image: url('./image/close.png') ;*/
			
 
				+        /*    background-size: 100% 100%;*/
			
 
				+        /*    position: fixed;*/
			
 
				+        /*    top: 20px;*/
			
 
				+        /*    right: 20px;*/
			
 
				+        /*    z-index: 99;*/
			
 
				+        /*    cursor: pointer;*/
			
 
				+        /*    display: none;*/
			
 
				+        /*}*/
			
 
				+    </style>
			
 
				+</head>
			
 
				+<body style="margin: 0; width: 100%; text-align: center; z-index:999;" >
			
 
				+<!--    <i class="close"></i>-->
			
 
				+<!--onload="open()"-->
			
 
				+    <video width="100%" id="video"></video>
			
 
				+    <canvas id="canvas"></canvas>
			
 
				+    <canvas id="draw"></canvas>
			
 
				+<!--    <button id="full">全屏</button>-->
			
 
				+</body>
			
 
				+<script type="module">
			
 
				+    import Player from "./src/player.js";
			
 
				+    var clickTimeId;
			
 
				+    let str  = location.href;
			
 
				+    let num = str.indexOf('?');
			
 
				+    str = str.substr(num+1);
			
 
				+    let data = str.split(',');
			
 
				+    let isShow = Number(data[0]);
			
 
				+    let key = data[4];
			
 
				+    const close = document.getElementsByClassName('close')[0];
			
 
				+    let video = document.getElementsByTagName('body')[0];
			
 
				+    video.dblclick = function () {
			
 
				+    };
			
 
				+    function onDocumentClick(event) {
			
 
				+        // 取消上次延时未执行的方法
			
 
				+        clearTimeout(clickTimeId);
			
 
				+        //执行延时
			
 
				+        clickTimeId = setTimeout(function() {
			
 
				+            //此处为单击事件要执行的代码
			
 
				+            console.log("鼠标单击");
			
 
				+        }, 250);
			
 
				+    }
			
 
				+    function onDocumenDblClick(event) {
			
 
				+        // 取消上次延时未执行的方法
			
 
				+        clearTimeout(clickTimeId);
			
 
				+        console.log("鼠标双击");
			
 
				+      // isFullscreenEnabled();
			
 
				+      let video = document.getElementById('video');
			
 
				+
			
 
				+        if (video.requestFullscreen) { //w3c
			
 
				+          console.log(video.requestFullscreen);
			
 
				+          console.log(video.requestFullscreen());
			
 
				+          video.requestFullscreen();
			
 
				+        } else if (video.mozRequestFullScreen) { //moz Firefox
			
 
				+          video.mozRequestFullScreen();
			
 
				+        } else if (video.msRequestFullscreen) { //IE
			
 
				+          video.msRequestFullscreen();
			
 
				+        } else if (video.oRequestFullscreen) { //Opera
			
 
				+          video.oRequestFullscreen();
			
 
				+        } else if (video.webkitRequestFullscreen) { //webkit内核 Chrome Safari
			
 
				+          video.webkitRequestFullScreen();
			
 
				+        }
			
 
				+    }
			
 
				+
			
 
				+
			
 
				+    const options = {
			
 
				+        video: document.getElementById('video'),
			
 
				+        canvas: document.getElementById('canvas'),
			
 
				+        drawer: document.getElementById('draw'),
			
 
				+        // wsUrl:'ws://111.2.71.225:10080/camera_relay?tcpaddr=admin%3Ahmkj6688%40192.168.1.144',
			
 
				+        // rtspUrl: 'rtsp://admin:hmkj6688@192.168.1.144',
			
 
				+        user: '',
			
 
				+        pwd: ''
			
 
				+    };
			
 
				+    options.wsUrl = data[1];
			
 
				+    options.rtspUrl = data[2];
			
 
				+    let player = new Player(options);
			
 
				+    player.init();
			
 
				+    player.on('error', function () {
			
 
				+        console.log('连接失败')
			
 
				+
			
 
				+    });
			
 
				+    player.on('noStream', function () {
			
 
				+        console.log('noStream');
			
 
				+        player.close();
			
 
				+        player = null;
			
 
				+        player = new Player(options);
			
 
				+        player.init();
			
 
				+        player.connect();
			
 
				+    });
			
 
				+
			
 
				+    player.on('canplay', function () {
			
 
				+        //player.close();
			
 
				+    });
			
 
				+
			
 
				+    player.on('initialCompleted', function () {
			
 
				+    });
			
 
				+
			
 
				+    player.on('ROIFinished', function () {
			
 
				+       console.log('ROIFinished');
			
 
				+    });
			
 
				+
			
 
				+    player.connect();
			
 
				+
			
 
				+    window.onload = function() {
			
 
				+      document.addEventListener('dblclick', onDocumenDblClick);
			
 
				+    };
			
 
				+
			
 
				+
			
 
				+</script>
			
 
				+</html>
			
--- a/piglet/202107121640/static/camera/src/H264SPSParser.js
+++ b/piglet/202107121640/static/camera/src/H264SPSParser.js
@@ -0,0 +1,387 @@
 
				+//import Map from './Map.js';
			
 
				+
			
 
				+let BITWISE0x00000007 = 0x00000007;
			
 
				+let BITWISE0x7 = 0x7;
			
 
				+let BITWISE2 = 2;
			
 
				+let BITWISE3 = 3;
			
 
				+let BITWISE4 = 4;
			
 
				+let BITWISE5 = 5;
			
 
				+let BITWISE6 = 6;
			
 
				+let BITWISE8 = 8;
			
 
				+let BITWISE12 = 12;
			
 
				+let BITWISE15 = 15;
			
 
				+let BITWISE16 = 16;
			
 
				+let BITWISE32 = 32;
			
 
				+let BITWISE64 = 64;
			
 
				+let BITWISE255 = 255;
			
 
				+let BITWISE256 = 256;
			
 
				+
			
 
				+function H264SPSParser() {
			
 
				+    let vBitCount = 0;
			
 
				+    let spsMap = null;
			
 
				+    let fps = null;
			
 
				+
			
 
				+
			
 
				+    function constructor() {
			
 
				+        spsMap = new Map();
			
 
				+    }
			
 
				+
			
 
				+    constructor.prototype = {
			
 
				+        parse (pSPSBytes) {
			
 
				+            //console.log("=========================SPS START=========================");
			
 
				+            vBitCount = 0;
			
 
				+            spsMap.clear();
			
 
				+
			
 
				+            // forbidden_zero_bit, nal_ref_idc, nal_unit_type
			
 
				+            spsMap.set("forbidden_zero_bit", readBits(pSPSBytes, 1));
			
 
				+            spsMap.set("nal_ref_idc", readBits(pSPSBytes, BITWISE2));
			
 
				+            spsMap.set("nal_unit_type", readBits(pSPSBytes, BITWISE5));
			
 
				+
			
 
				+            // profile_idc
			
 
				+            spsMap.set("profile_idc", readBits(pSPSBytes, BITWISE8));
			
 
				+            spsMap.set("profile_compatibility", readBits(pSPSBytes, BITWISE8));
			
 
				+
			
 
				+            // spsMap.set("constrained_set0_flag", readBits(pSPSBytes, 1));
			
 
				+            // spsMap.set("constrained_set1_flag", readBits(pSPSBytes, 1));
			
 
				+            // spsMap.set("constrained_set2_flag", readBits(pSPSBytes, 1));
			
 
				+            // spsMap.set("constrained_set3_flag", readBits(pSPSBytes, 1));
			
 
				+            // spsMap.set("constrained_set4_flag", readBits(pSPSBytes, 1));
			
 
				+            // spsMap.set("constrained_set5_flag", readBits(pSPSBytes, 1));
			
 
				+            // spsMap.set("reserved_zero_2bits", readBits(pSPSBytes, 2));
			
 
				+
			
 
				+            // level_idc
			
 
				+            spsMap.set("level_idc", readBits(pSPSBytes, BITWISE8));
			
 
				+            spsMap.set("seq_parameter_set_id", ue(pSPSBytes, 0));
			
 
				+
			
 
				+            let profileIdc = spsMap.get("profile_idc");
			
 
				+            let BITWISE100 = 100;
			
 
				+            let BITWISE110 = 110;
			
 
				+            let BITWISE122 = 122;
			
 
				+            let BITWISE244 = 244;
			
 
				+            let BITWISE44 = 44;
			
 
				+            let BITWISE83 = 83;
			
 
				+            let BITWISE86 = 86;
			
 
				+            let BITWISE118 = 118;
			
 
				+            let BITWISE128 = 128;
			
 
				+            let BITWISE138 = 138;
			
 
				+            let BITWISE139 = 139;
			
 
				+            let BITWISE134 = 134;
			
 
				+
			
 
				+            if ((profileIdc === BITWISE100) || (profileIdc === BITWISE110) ||
			
 
				+                (profileIdc === BITWISE122) || (profileIdc === BITWISE244) ||
			
 
				+                (profileIdc === BITWISE44) || (profileIdc === BITWISE83) ||
			
 
				+                (profileIdc === BITWISE86) || (profileIdc === BITWISE118) ||
			
 
				+                (profileIdc === BITWISE128) || (profileIdc === BITWISE138) ||
			
 
				+                (profileIdc === BITWISE139) || (profileIdc === BITWISE134)) {
			
 
				+                spsMap.set("chroma_format_idc", ue(pSPSBytes, 0));
			
 
				+                if (spsMap.get("chroma_format_idc") === BITWISE3) {
			
 
				+                    spsMap.set("separate_colour_plane_flag", readBits(pSPSBytes, 1));
			
 
				+                }
			
 
				+
			
 
				+                spsMap.set("bit_depth_luma_minus8", ue(pSPSBytes, 0));
			
 
				+                spsMap.set("bit_depth_chroma_minus8", ue(pSPSBytes, 0));
			
 
				+                spsMap.set("qpprime_y_zero_transform_bypass_flag", readBits(pSPSBytes, 1));
			
 
				+                spsMap.set("seq_scaling_matrix_present_flag", readBits(pSPSBytes, 1));
			
 
				+
			
 
				+                if (spsMap.get("seq_scaling_matrix_present_flag")) {
			
 
				+                    let num = spsMap.get("chroma_format_idc") !== BITWISE3 ? BITWISE8 : BITWISE12;
			
 
				+                    let seqScalingListPresentFlag = new Array(num);
			
 
				+                    for (let i = 0; i < num; i++) {
			
 
				+                        seqScalingListPresentFlag[i] = readBits(pSPSBytes, 1);
			
 
				+
			
 
				+                        if (seqScalingListPresentFlag[i]) {
			
 
				+                            let slNumber = i < BITWISE6 ? BITWISE16 : BITWISE64;
			
 
				+                            let lastScale = 8;
			
 
				+                            let nextScale = 8;
			
 
				+                            let deltaScale = 0;
			
 
				+
			
 
				+                            for (let j = 0; j < slNumber; j++) {
			
 
				+                                if (nextScale) {
			
 
				+                                    deltaScale = se(pSPSBytes, 0);
			
 
				+                                    nextScale = (lastScale + deltaScale + BITWISE256) % BITWISE256;
			
 
				+                                }
			
 
				+                                lastScale = (nextScale === 0) ? lastScale : nextScale;
			
 
				+                            }
			
 
				+                        }
			
 
				+                    }
			
 
				+                    spsMap.set("seq_scaling_list_present_flag", seqScalingListPresentFlag);
			
 
				+                }
			
 
				+            }
			
 
				+            spsMap.set("log2_max_frame_num_minus4", ue(pSPSBytes, 0));
			
 
				+            spsMap.set("pic_order_cnt_type", ue(pSPSBytes, 0));
			
 
				+
			
 
				+            if (spsMap.get("pic_order_cnt_type") === 0) {
			
 
				+                spsMap.set("log2_max_pic_order_cnt_lsb_minus4", ue(pSPSBytes, 0));
			
 
				+            } else if (spsMap.get("pic_order_cnt_type") === 1) {
			
 
				+                spsMap.set("delta_pic_order_always_zero_flag", readBits(pSPSBytes, 1));
			
 
				+                spsMap.set("offset_for_non_ref_pic", se(pSPSBytes, 0));
			
 
				+                spsMap.set("offset_for_top_to_bottom_field", se(pSPSBytes, 0));
			
 
				+                spsMap.set("num_ref_frames_in_pic_order_cnt_cycle", ue(pSPSBytes, 0));
			
 
				+                for (let numR = 0; numR < spsMap.get("num_ref_frames_in_pic_order_cnt_cycle"); numR++) {
			
 
				+                    spsMap.set("num_ref_frames_in_pic_order_cnt_cycle", se(pSPSBytes, 0));
			
 
				+                }
			
 
				+            }
			
 
				+            spsMap.set("num_ref_frames", ue(pSPSBytes, 0));
			
 
				+            spsMap.set("gaps_in_frame_num_value_allowed_flag", readBits(pSPSBytes, 1));
			
 
				+            spsMap.set("pic_width_in_mbs_minus1", ue(pSPSBytes, 0));
			
 
				+            spsMap.set("pic_height_in_map_units_minus1", ue(pSPSBytes, 0));
			
 
				+            spsMap.set("frame_mbs_only_flag", readBits(pSPSBytes, 1));
			
 
				+
			
 
				+            if (spsMap.get("frame_mbs_only_flag") === 0) {
			
 
				+                spsMap.set("mb_adaptive_frame_field_flag", readBits(pSPSBytes, 1));
			
 
				+            }
			
 
				+            spsMap.set("direct_8x8_interence_flag", readBits(pSPSBytes, 1));
			
 
				+            spsMap.set("frame_cropping_flag", readBits(pSPSBytes, 1));
			
 
				+            if (spsMap.get("frame_cropping_flag") === 1) {
			
 
				+                spsMap.set("frame_cropping_rect_left_offset", ue(pSPSBytes, 0));
			
 
				+                spsMap.set("frame_cropping_rect_right_offset", ue(pSPSBytes, 0));
			
 
				+                spsMap.set("frame_cropping_rect_top_offset", ue(pSPSBytes, 0));
			
 
				+                spsMap.set("frame_cropping_rect_bottom_offset", ue(pSPSBytes, 0));
			
 
				+            }
			
 
				+
			
 
				+            //vui parameters
			
 
				+            spsMap.set("vui_parameters_present_flag", readBits(pSPSBytes, 1));
			
 
				+            if (spsMap.get("vui_parameters_present_flag")) {
			
 
				+                vuiParameters(pSPSBytes);
			
 
				+            }
			
 
				+
			
 
				+            //console.log("=========================SPS END=========================");
			
 
				+
			
 
				+
			
 
				+            return true;
			
 
				+        },
			
 
				+        getSizeInfo () {
			
 
				+            let SubWidthC = 0;
			
 
				+            let SubHeightC = 0;
			
 
				+
			
 
				+            if (spsMap.get("chroma_format_idc") === 0) { //monochrome
			
 
				+                SubWidthC = SubHeightC = 0;
			
 
				+            } else if (spsMap.get("chroma_format_idc") === 1) { //4:2:0
			
 
				+                SubWidthC = SubHeightC = BITWISE2;
			
 
				+            } else if (spsMap.get("chroma_format_idc") === BITWISE2) { //4:2:2
			
 
				+                SubWidthC = BITWISE2;
			
 
				+                SubHeightC = 1;
			
 
				+            } else if (spsMap.get("chroma_format_idc") === BITWISE3) { //4:4:4
			
 
				+                if (spsMap.get("separate_colour_plane_flag") === 0) {
			
 
				+                    SubWidthC = SubHeightC = 1;
			
 
				+                } else if (spsMap.get("separate_colour_plane_flag") === 1) {
			
 
				+                    SubWidthC = SubHeightC = 0;
			
 
				+                }
			
 
				+            }
			
 
				+
			
 
				+            let PicWidthInMbs = spsMap.get("pic_width_in_mbs_minus1") + 1;
			
 
				+
			
 
				+            let PicHeightInMapUnits = spsMap.get("pic_height_in_map_units_minus1") + 1;
			
 
				+            let FrameHeightInMbs = (BITWISE2 - spsMap.get("frame_mbs_only_flag")) * PicHeightInMapUnits;
			
 
				+
			
 
				+            let cropLeft = 0;
			
 
				+            let cropRight = 0;
			
 
				+            let cropTop = 0;
			
 
				+            let cropBottom = 0;
			
 
				+
			
 
				+            if (spsMap.get("frame_cropping_flag") === 1) {
			
 
				+                cropLeft = spsMap.get("frame_cropping_rect_left_offset");
			
 
				+                cropRight = spsMap.get("frame_cropping_rect_right_offset");
			
 
				+                cropTop = spsMap.get("frame_cropping_rect_top_offset");
			
 
				+                cropBottom = spsMap.get("frame_cropping_rect_bottom_offset");
			
 
				+            }
			
 
				+            let decodeSize = (PicWidthInMbs * BITWISE16) * (FrameHeightInMbs * BITWISE16);
			
 
				+            let width = (PicWidthInMbs * BITWISE16) - (SubWidthC * (cropLeft + cropRight));
			
 
				+            let height = (FrameHeightInMbs * BITWISE16) -
			
 
				+                (SubHeightC * (BITWISE2 - spsMap.get("frame_mbs_only_flag")) * (cropTop + cropBottom));
			
 
				+
			
 
				+            let sizeInfo = {
			
 
				+                'width': width,
			
 
				+                'height': height,
			
 
				+                'decodeSize': decodeSize,
			
 
				+            };
			
 
				+
			
 
				+            return sizeInfo;
			
 
				+        },
			
 
				+        getSpsValue (key) {
			
 
				+            return spsMap.get(key);
			
 
				+        },
			
 
				+        getCodecInfo () {
			
 
				+            let profileIdc = spsMap.get("profile_idc").toString(BITWISE16);
			
 
				+            let profileCompatibility = spsMap.get("profile_compatibility") < BITWISE15 ?
			
 
				+                "0" + spsMap.get("profile_compatibility").toString(BITWISE16) :
			
 
				+                spsMap.get("profile_compatibility").toString(BITWISE16);
			
 
				+
			
 
				+            let levelIdc = spsMap.get("level_idc").toString(BITWISE16);
			
 
				+
			
 
				+            //console.log("getCodecInfo = " + (profile_idc + profile_compatibility + level_idc));
			
 
				+            return profileIdc + profileCompatibility + levelIdc;
			
 
				+
			
 
				+        },
			
 
				+
			
 
				+        getSpsMap() {
			
 
				+            return spsMap;
			
 
				+        },
			
 
				+
			
 
				+        getFPS() {
			
 
				+            return fps;
			
 
				+        }
			
 
				+    }
			
 
				+
			
 
				+    return new constructor();
			
 
				+
			
 
				+    function getBit(base, offset) {
			
 
				+        let offsetData = offset;
			
 
				+        let vCurBytes = (vBitCount + offsetData) >> BITWISE3;
			
 
				+        offsetData = (vBitCount + offset) & BITWISE0x00000007;
			
 
				+        return (((base[(vCurBytes)])) >> (BITWISE0x7 - (offsetData & BITWISE0x7))) & 0x1;
			
 
				+    }
			
 
				+
			
 
				+    function readBits(pBuf, vReadBits) {
			
 
				+        let vOffset = 0;
			
 
				+        let vTmp = 0,
			
 
				+            vTmp2 = 0;
			
 
				+
			
 
				+        if (vReadBits === 1) {
			
 
				+            vTmp = getBit(pBuf, vOffset);
			
 
				+        } else {
			
 
				+            for (let i = 0; i < vReadBits; i++) {
			
 
				+                vTmp2 = getBit(pBuf, i);
			
 
				+                vTmp = (vTmp << 1) + vTmp2;
			
 
				+            }
			
 
				+        }
			
 
				+
			
 
				+        vBitCount += vReadBits;
			
 
				+        return vTmp;
			
 
				+    }
			
 
				+
			
 
				+    function ue(base, offset) {
			
 
				+        let zeros = 0,
			
 
				+            vTmp = 0,
			
 
				+            vReturn = 0;
			
 
				+        let vIdx = offset;
			
 
				+        do {
			
 
				+            vTmp = getBit(base, vIdx++);
			
 
				+            if (vTmp === 0) {
			
 
				+                zeros++;
			
 
				+            }
			
 
				+        } while (0 === vTmp);
			
 
				+
			
 
				+        if (zeros === 0) {
			
 
				+            vBitCount += 1;
			
 
				+            return 0;
			
 
				+        }
			
 
				+
			
 
				+        vReturn = 1 << zeros;
			
 
				+
			
 
				+        for (let i = zeros - 1; i >= 0; i--, vIdx++) {
			
 
				+            vTmp = getBit(base, vIdx);
			
 
				+            vReturn |= vTmp << i;
			
 
				+        }
			
 
				+
			
 
				+        let addBitCount = (zeros * BITWISE2) + 1;
			
 
				+        vBitCount += addBitCount;
			
 
				+
			
 
				+        return (vReturn - 1);
			
 
				+    }
			
 
				+
			
 
				+    function se(base, offset) {
			
 
				+        let vReturn = ue(base, offset);
			
 
				+
			
 
				+        if (vReturn & 0x1) {
			
 
				+            return (vReturn + 1) / BITWISE2;
			
 
				+        } else {
			
 
				+            return -vReturn / BITWISE2;
			
 
				+        }
			
 
				+    }
			
 
				+
			
 
				+    function hrdParameters(pSPSBytes) {
			
 
				+        spsMap.set("cpb_cnt_minus1", ue(pSPSBytes, 0));
			
 
				+        spsMap.set("bit_rate_scale", readBits(pSPSBytes, BITWISE4));
			
 
				+        spsMap.set("cpb_size_scale", readBits(pSPSBytes, BITWISE4));
			
 
				+        let cpdCntMinus1 = spsMap.get("cpb_cnt_minus1");
			
 
				+        let bitRateValueMinus1 = new Array(cpdCntMinus1);
			
 
				+        let cpbSizeValueMinus1 = new Array(cpdCntMinus1);
			
 
				+        let cbrFlag = new Array(cpdCntMinus1);
			
 
				+        //Todo: 原本为i <= cpdCntMinus1，运行到此处时直接停住，原因不明，改为<后正常
			
 
				+        for (let i = 0; i < cpdCntMinus1; i++) {
			
 
				+            bitRateValueMinus1[i] = ue(pSPSBytes, 0);
			
 
				+            cpbSizeValueMinus1[i] = ue(pSPSBytes, 0);
			
 
				+            cbrFlag[i] = readBits(pSPSBytes, 1);
			
 
				+        }
			
 
				+        spsMap.set("bit_rate_value_minus1", bitRateValueMinus1);
			
 
				+        spsMap.set("cpb_size_value_minus1", cpbSizeValueMinus1);
			
 
				+        spsMap.set("cbr_flag", cbrFlag);
			
 
				+
			
 
				+        spsMap.set("initial_cpb_removal_delay_length_minus1", readBits(pSPSBytes, BITWISE4));
			
 
				+        spsMap.set("cpb_removal_delay_length_minus1", readBits(pSPSBytes, BITWISE4));
			
 
				+        spsMap.set("dpb_output_delay_length_minus1", readBits(pSPSBytes, BITWISE4));
			
 
				+        spsMap.set("time_offset_length", readBits(pSPSBytes, BITWISE4));
			
 
				+    }
			
 
				+
			
 
				+    function vuiParameters(pSPSBytes) {
			
 
				+        spsMap.set("aspect_ratio_info_present_flag", readBits(pSPSBytes, 1));
			
 
				+        if (spsMap.get("aspect_ratio_info_present_flag")) {
			
 
				+            spsMap.set("aspect_ratio_idc", readBits(pSPSBytes, BITWISE8));
			
 
				+            //Extended_SAR
			
 
				+            if (spsMap.get("aspect_ratio_idc") === BITWISE255) {
			
 
				+                spsMap.set("sar_width", readBits(pSPSBytes, BITWISE16));
			
 
				+                spsMap.set("sar_height", readBits(pSPSBytes, BITWISE16));
			
 
				+            }
			
 
				+        }
			
 
				+
			
 
				+        spsMap.set("overscan_info_present_flag", readBits(pSPSBytes, 1));
			
 
				+        if (spsMap.get("overscan_info_present_flag")) {
			
 
				+            spsMap.set("overscan_appropriate_flag", readBits(pSPSBytes, 1));
			
 
				+        }
			
 
				+        spsMap.set("video_signal_type_present_flag", readBits(pSPSBytes, 1));
			
 
				+        if (spsMap.get("video_signal_type_present_flag")) {
			
 
				+            spsMap.set("video_format", readBits(pSPSBytes, BITWISE3));
			
 
				+            spsMap.set("video_full_range_flag", readBits(pSPSBytes, 1));
			
 
				+            spsMap.set("colour_description_present_flag", readBits(pSPSBytes, 1));
			
 
				+            if (spsMap.get("colour_description_present_flag")) {
			
 
				+                spsMap.set("colour_primaries", readBits(pSPSBytes, BITWISE8));
			
 
				+                spsMap.set("transfer_characteristics", readBits(pSPSBytes, BITWISE8));
			
 
				+                spsMap.set("matrix_coefficients", readBits(pSPSBytes, BITWISE8));
			
 
				+            }
			
 
				+        }
			
 
				+        spsMap.set("chroma_loc_info_present_flag", readBits(pSPSBytes, 1));
			
 
				+        if (spsMap.get("chroma_loc_info_present_flag")) {
			
 
				+            spsMap.set("chroma_sample_loc_type_top_field", ue(pSPSBytes, 0));
			
 
				+            spsMap.set("chroma_sample_loc_type_bottom_field", ue(pSPSBytes, 0));
			
 
				+        }
			
 
				+        spsMap.set("timing_info_present_flag", readBits(pSPSBytes, 1));
			
 
				+        if (spsMap.get("timing_info_present_flag")) {
			
 
				+            spsMap.set("num_units_in_tick", readBits(pSPSBytes, BITWISE32));
			
 
				+            spsMap.set("time_scale", readBits(pSPSBytes, BITWISE32));
			
 
				+            spsMap.set("fixed_frame_rate_flag", readBits(pSPSBytes, 1));
			
 
				+
			
 
				+            fps =  spsMap.get("time_scale") / spsMap.get("num_units_in_tick");
			
 
				+            if(spsMap.get("fixed_frame_rate_flag")) {
			
 
				+                fps = fps / 2;
			
 
				+            }
			
 
				+        }
			
 
				+        spsMap.set("nal_hrd_parameters_present_flag", readBits(pSPSBytes, 1));
			
 
				+        if (spsMap.get("nal_hrd_parameters_present_flag")) {
			
 
				+            hrdParameters(pSPSBytes);
			
 
				+        }
			
 
				+        spsMap.set("vcl_hrd_parameters_present_flag", readBits(pSPSBytes, 1));
			
 
				+        if (spsMap.get("vcl_hrd_parameters_present_flag")) {
			
 
				+            hrdParameters(pSPSBytes);
			
 
				+        }
			
 
				+        if (spsMap.get("nal_hrd_parameters_present_flag") ||
			
 
				+            spsMap.get("vcl_hrd_parameters_present_flag")) {
			
 
				+            spsMap.set("low_delay_hrd_flag", readBits(pSPSBytes, 1));
			
 
				+        }
			
 
				+        spsMap.set("pic_struct_present_flag", readBits(pSPSBytes, 1));
			
 
				+        spsMap.set("bitstream_restriction_flag", readBits(pSPSBytes, 1));
			
 
				+        if (spsMap.get("bitstream_restriction_flag")) {
			
 
				+            spsMap.set("motion_vectors_over_pic_boundaries_flag", readBits(pSPSBytes, 1));
			
 
				+            spsMap.set("max_bytes_per_pic_denom", ue(pSPSBytes, 0));
			
 
				+            spsMap.set("max_bits_per_mb_denom", ue(pSPSBytes, 0));
			
 
				+            spsMap.set("log2_max_mv_length_horizontal", ue(pSPSBytes, 0));
			
 
				+            spsMap.set("log2_max_mv_length_vertical", ue(pSPSBytes, 0));
			
 
				+            spsMap.set("max_num_reorder_frames", ue(pSPSBytes, 0));
			
 
				+            spsMap.set("max_dec_frame_buffering", ue(pSPSBytes, 0));
			
 
				+        }
			
 
				+    }
			
 
				+}
			
 
				+
			
 
				+
			
 
				+
			
 
				+//export default H264SPSParser;
			
--- a/piglet/202107121640/static/camera/src/H264Session.js
+++ b/piglet/202107121640/static/camera/src/H264Session.js
@@ -0,0 +1,667 @@
 
				+function H264Session() {
			
 
				+    let rtpTimeStamp = 0;
			
 
				+    let size1M = 1048576; //1024 * 1024
			
 
				+    let inputBuffer = new Uint8Array(size1M);
			
 
				+    let spsSegment = null;
			
 
				+    let ppsSegment = null;
			
 
				+
			
 
				+    let SPSParser = null;
			
 
				+
			
 
				+    let width = 0;
			
 
				+    let height = 0;
			
 
				+    let inputLength = 0;
			
 
				+
			
 
				+    let initalSegmentFlag = true; //用于确定是否是initSegment
			
 
				+    let initalMediaFrameFlag = true;
			
 
				+
			
 
				+    let frameRate = null; //根据SDP或者SPS设置
			
 
				+    let preSample = null; //上一个Sample
			
 
				+    let durationTimeCount = 0;
			
 
				+    let frameCount = 0;
			
 
				+    let inputSegBufferSub = null;
			
 
				+
			
 
				+    //MSE使用的数据以及相关配置，顺序codecInfo -> initSegmentData -> mediaSample -> frameData
			
 
				+    //时间戳用于绘制人脸框
			
 
				+    let decodedData = {
			
 
				+        frameData: null, //视频数据
			
 
				+        timeStamp: null, //时间戳
			
 
				+        initSegmentData: null, //MP4配置,用于initsegment
			
 
				+        mediaSample: null, //使用duration控制每一帧的播放时间
			
 
				+        codecInfo: "", //MSE init时传入，用于创建mediasource
			
 
				+    };
			
 
				+    let FRAMETYPE = {
			
 
				+        1: 'P',
			
 
				+        5: 'I',
			
 
				+        6: 'SEI',
			
 
				+        7: 'I'
			
 
				+    };
			
 
				+    let frameType = '';
			
 
				+    let decodeMode = 'video';
			
 
				+    let outputSize = 0;
			
 
				+    let curSize = 0;
			
 
				+
			
 
				+    const PREFIX = new Uint8Array(['0x00', '0x00', '0x00', '0x01']);
			
 
				+
			
 
				+    let firstIframe = false;
			
 
				+
			
 
				+    let SEIInfo = {
			
 
				+        ivs: null,
			
 
				+        timestamp: null,
			
 
				+    };
			
 
				+
			
 
				+    let preWidth = null,
			
 
				+        preHeight = null;
			
 
				+    let resetTimeCount = 0;
			
 
				+    let lastTimeStamp = 0;
			
 
				+    //const RESETTIME = 162000000;
			
 
				+    const RESETTIME = 4320000;
			
 
				+    let SEIBuffer = null;
			
 
				+    let lastSEITime = 0;
			
 
				+
			
 
				+    function constructor() {
			
 
				+
			
 
				+    }
			
 
				+
			
 
				+    constructor.prototype = {
			
 
				+        init() {
			
 
				+            SPSParser = new H264SPSParser();
			
 
				+            this.resolutionChangedCallback = () => {
			
 
				+            };
			
 
				+        },
			
 
				+
			
 
				+        remuxRTPData(rtspInterleaved, rtpHeader, rtpPayload) {
			
 
				+            //console.log(rtspInterleaved)
			
 
				+            //console.log(rtpHeader)
			
 
				+            let PaddingSize = 0;
			
 
				+            let extensionHeaderLen = 0; //如果RtpHeader.X=1，则在RTP报头后跟有一个扩展报头
			
 
				+            let PAYLOAD = null;
			
 
				+//console.log(rtpHeader)
			
 
				+//console.log(rtspInterleaved, rtpHeader, rtpPayload.subarray(0,5))
			
 
				+            let RtpHeader = {
			
 
				+                V: rtpHeader[0] >>> 6,
			
 
				+                P: rtpHeader[0] & 0x20,
			
 
				+                X: rtpHeader[0] & 0x10,
			
 
				+                CC: rtpHeader[0] & 0x0F,
			
 
				+                M: (rtpHeader[1] & 0x80) >> 7,
			
 
				+                PT: rtpHeader[1] & 127,
			
 
				+                SN: (rtpHeader[2] << 8) + rtpHeader[3],
			
 
				+                timeStamp: (rtpHeader[4] << 24) + (rtpHeader[5] << 16) + (rtpHeader[6] << 8) + rtpHeader[7],
			
 
				+                SSRC: (rtpHeader[8] << 24) + (rtpHeader[9] << 16) + (rtpHeader[10] << 8) + rtpHeader[11],
			
 
				+            };
			
 
				+            if (RtpHeader.P) { //填充
			
 
				+                PaddingSize = rtpPayload[rtpPayload.length - 1];
			
 
				+                console.log("Padding - " + PaddingSize);
			
 
				+            }
			
 
				+
			
 
				+            if (RtpHeader.X) { //扩展
			
 
				+                extensionHeaderLen = (((rtpPayload[2] << 8) | rtpPayload[3]) * 4) + 4;
			
 
				+                console.log('X: ' + rtpPayload[0])
			
 
				+            }
			
 
				+//console.log('extensionHeaderLen: '+ extensionHeaderLen)
			
 
				+            PAYLOAD = rtpPayload.subarray(extensionHeaderLen, rtpPayload.length - PaddingSize);
			
 
				+            rtpTimeStamp = RtpHeader.timeStamp;
			
 
				+
			
 
				+            //console.log(rtpTimeStamp, rtpHeader[4], rtpHeader[5], rtpHeader[6] , rtpHeader[7], PAYLOAD[0] & 0x1f)
			
 
				+            /* 载荷结构(https://blog.csdn.net/davebobo/article/details/52994596)
			
 
				+            +---------------+
			
 
				+            |0|1|2|3|4|5|6|7|
			
 
				+            +-+-+-+-+-+-+-+-+
			
 
				+            |F|NRI|  Type   |
			
 
				+            +---------------+
			
 
				+            Type = 1-23 单个NAL单元包
			
 
				+            Type = 24,25, 26, 27聚合包
			
 
				+            Type = 28，29, 分片单元
			
 
				+            */
			
 
				+            //console.log(rtspInterleaved,rtpHeader, PAYLOAD[0]);
			
 
				+            let nalType = (PAYLOAD[0] & 0x1f);
			
 
				+            //console.log(PAYLOAD[0] + ' nalType: ' + nalType);
			
 
				+
			
 
				+//console.log('rtpPayload.length: ' + rtpPayload.length)
			
 
				+//console.log(nalType, PAYLOAD[0])
			
 
				+//console.log('nalType: ' + nalType, RtpHeader.M)
			
 
				+            switch (nalType) {
			
 
				+                case 6: //SEI
			
 
				+                    //console.log(PAYLOAD, String.fromCharCode.apply(null, PAYLOAD))
			
 
				+                    if (SEIParse(PAYLOAD) === null) {
			
 
				+                        return;
			
 
				+                    }
			
 
				+                    inputBuffer = setBuffer(inputBuffer, PREFIX);
			
 
				+                    inputBuffer = setBuffer(inputBuffer, PAYLOAD);
			
 
				+                    break;
			
 
				+                case 7: //SPS
			
 
				+                    //console.log('SPS');
			
 
				+                    SPSParser.parse(removeH264or5EmulationBytes(PAYLOAD));
			
 
				+                    let sizeInfo = SPSParser.getSizeInfo();
			
 
				+                    //console.log(SPSParser.getSpsMap())
			
 
				+                    width = sizeInfo.width;
			
 
				+                    height = sizeInfo.height;
			
 
				+
			
 
				+                    if (preWidth !== width || preHeight !== height) {
			
 
				+                        console.log('resolution changed!');
			
 
				+                        console.log('preWidth: ', preWidth, ' preHeight: ', preHeight, ' width: ', width, ' height: ', height);
			
 
				+                        preWidth = width;
			
 
				+                        preHeight = height;
			
 
				+                    }
			
 
				+                    inputBuffer = setBuffer(inputBuffer, PREFIX);
			
 
				+                    inputBuffer = setBuffer(inputBuffer, PAYLOAD);
			
 
				+                    spsSegment = PAYLOAD;
			
 
				+                    //console.log('width： ',width, 'height: ', height)
			
 
				+                    curSize = sizeInfo.decodeSize;
			
 
				+                    firstIframe = true;
			
 
				+//console.log(spsSegment)
			
 
				+                    if (frameRate === null) {
			
 
				+                        frameRate = SPSParser.getFPS();
			
 
				+                    }
			
 
				+                    break;
			
 
				+                case 8: //PPS
			
 
				+                    //console.log('PPS')
			
 
				+                    inputBuffer = setBuffer(inputBuffer, PREFIX);
			
 
				+                    inputBuffer = setBuffer(inputBuffer, PAYLOAD);
			
 
				+                    ppsSegment = PAYLOAD;
			
 
				+//console.log(ppsSegment)
			
 
				+                    break;
			
 
				+                case 28: //FU
			
 
				+                    //console.log('FU');
			
 
				+                    let startBit = ((PAYLOAD[1] & 0x80) === 0x80),
			
 
				+                        endBit = ((PAYLOAD[1] & 0x40) === 0x40),
			
 
				+                        fuType = PAYLOAD[1] & 0x1f,
			
 
				+                        payloadStartIndex = 2;
			
 
				+                    //console.log('startBit: ' + startBit + ' endBit: ' + endBit)
			
 
				+                    //console.log('fuType: ' + fuType)
			
 
				+                    if (startBit === true && endBit === false) {
			
 
				+                        let newNalHeader = new Uint8Array(1);
			
 
				+                        newNalHeader[0] = ((PAYLOAD[0] & 0xe0) | fuType);
			
 
				+                        //console.log('newNalHeader： ', newNalHeader[0])
			
 
				+                        //console.log('fuType: ' + fuType)
			
 
				+                        //console.log((PAYLOAD[2] << 8) + PAYLOAD[3])
			
 
				+//console.log(new Uint8Array(PAYLOAD.subarray(0, 100)));
			
 
				+                        if (false) { //赛兰摄像头，SPS,PPS,I帧打在一个RTP包中
			
 
				+                            PAYLOAD[1] = newNalHeader[0];
			
 
				+                            SPSParser.parse(removeH264or5EmulationBytes(PAYLOAD.subarray(1, 27)));
			
 
				+                            let sizeInfo = SPSParser.getSizeInfo();
			
 
				+//console.log(sizeInfo, SPSParser.getSpsMap())
			
 
				+                            //SPS
			
 
				+                            width = sizeInfo.width;
			
 
				+                            height = sizeInfo.height;
			
 
				+                            inputBuffer = setBuffer(inputBuffer, PREFIX);
			
 
				+                            inputBuffer = setBuffer(inputBuffer, PAYLOAD.subarray(1, 27));
			
 
				+                            spsSegment = PAYLOAD.subarray(1, 27);
			
 
				+                            //console.log('width： ',width, 'height: ', height)
			
 
				+                            curSize = sizeInfo.decodeSize;
			
 
				+                            firstIframe = true;
			
 
				+
			
 
				+                            //PPS
			
 
				+                            inputBuffer = setBuffer(inputBuffer, PREFIX);
			
 
				+                            inputBuffer = setBuffer(inputBuffer, PAYLOAD.subarray(30, 34));
			
 
				+                            ppsSegment = PAYLOAD.subarray(30, 34);
			
 
				+
			
 
				+                            //I
			
 
				+                            inputBuffer = setBuffer(inputBuffer, PREFIX);
			
 
				+                            inputBuffer = setBuffer(inputBuffer, PAYLOAD.subarray(38, PAYLOAD.length));
			
 
				+
			
 
				+                        } else {
			
 
				+                            //console.log(newNalHeader[0] & 0x1f)
			
 
				+                            inputBuffer = setBuffer(inputBuffer, PREFIX);
			
 
				+                            inputBuffer = setBuffer(inputBuffer, newNalHeader);
			
 
				+                            inputBuffer = setBuffer(inputBuffer, PAYLOAD.subarray(payloadStartIndex, PAYLOAD.length));
			
 
				+                        }
			
 
				+
			
 
				+                    } else {
			
 
				+                        //console.log(startBit, endBit, 'endBit')
			
 
				+                        inputBuffer = setBuffer(inputBuffer,
			
 
				+                            PAYLOAD.subarray(payloadStartIndex, PAYLOAD.length));
			
 
				+                    }
			
 
				+//console.log(startBit,endBit)
			
 
				+                    // if(endBit === true) {
			
 
				+                    //     end = true;
			
 
				+                    // }
			
 
				+                    break;
			
 
				+                case 1:
			
 
				+                    inputBuffer = setBuffer(inputBuffer, PREFIX);
			
 
				+                    inputBuffer = setBuffer(inputBuffer, PAYLOAD);
			
 
				+                    break;
			
 
				+                default:
			
 
				+                    //console.log('nalType: ' + nalType);
			
 
				+                    //console.log(PAYLOAD)
			
 
				+                    break;
			
 
				+            }
			
 
				+//console.log('M: ' + RtpHeader.M + ' ' + (rtpHeader[1] & 0x80))
			
 
				+            //check marker bit
			
 
				+            if (RtpHeader.M) {
			
 
				+                if (!firstIframe) {
			
 
				+                    inputLength = 0;
			
 
				+                    return;
			
 
				+                }
			
 
				+                let inputBufferSub = inputBuffer.subarray(0, inputLength);
			
 
				+                frameType = FRAMETYPE[inputBufferSub[4] & 0x1f];
			
 
				+
			
 
				+                //只根据视频帧计算resetTimeCount
			
 
				+                if (frameType !== 'SEI') {
			
 
				+                    // rtp时间戳周期为RESETTIME，如果单向递增，设为0
			
 
				+                    if (lastTimeStamp - rtpTimeStamp > (RESETTIME / 2)) { //判断lastTimeStamp远大于rtpTimeStamp，防止后一帧比前一帧先到的情况
			
 
				+                        //console.log(lastTimeStamp - rtpTimeStamp)
			
 
				+                        console.warn('时间戳重置', lastTimeStamp, rtpTimeStamp, frameType, new Date())
			
 
				+                        resetTimeCount++;
			
 
				+                    }
			
 
				+                    rtpTimeStamp = rtpTimeStamp + RESETTIME * resetTimeCount;
			
 
				+                } else {
			
 
				+                    //同一帧的SEI比视频发送慢时
			
 
				+                    if (rtpTimeStamp - lastTimeStamp > (RESETTIME / 2)) {
			
 
				+                        console.warn('SEI翻转', rtpTimeStamp, lastTimeStamp);
			
 
				+                        rtpTimeStamp = rtpTimeStamp + RESETTIME * (resetTimeCount - 1);
			
 
				+                    } else {
			
 
				+                        rtpTimeStamp = rtpTimeStamp + RESETTIME * resetTimeCount;
			
 
				+                    }
			
 
				+                    //同一帧的SEI比视频发送快时
			
 
				+                    // if(rtpTimeStamp > lastTimeStamp) {
			
 
				+                    //     rtpTimeStamp = rtpTimeStamp + RESETTIME * resetTimeCount;
			
 
				+                    // } else {
			
 
				+                    //     rtpTimeStamp = rtpTimeStamp + RESETTIME * (resetTimeCount + 1);
			
 
				+                    // }
			
 
				+                }
			
 
				+//console.log('frameType: ', frameType, 'rtpTimeStamp: ', rtpTimeStamp)
			
 
				+                if (frameType === 'SEI') {
			
 
				+                    //SEI被分片（nal === 28）时，分片包发送完后marker为1，不会和视频帧一起
			
 
				+                    SEIBuffer = inputBuffer.subarray(4, inputLength);
			
 
				+                    //console.log(SEIBuffer)
			
 
				+                    inputBufferSub = new Uint8Array();
			
 
				+                }
			
 
				+                if (SEIBuffer) {
			
 
				+                    let SEI = SEIParse(SEIBuffer);
			
 
				+                    if (SEI) {
			
 
				+                        SEIInfo.ivs = SEI;
			
 
				+                        SEIInfo.timestamp = rtpTimeStamp;
			
 
				+                        decodedData.SEIInfo = SEIInfo;
			
 
				+                        if ((rtpTimeStamp - lastSEITime) !== (90000 / frameRate)) {
			
 
				+                            //console.log('SEI 时间差：', (rtpTimeStamp - lastTime), rtpTimeStamp, lastTime)
			
 
				+                        }
			
 
				+                        lastSEITime = rtpTimeStamp;
			
 
				+                        SEIInfo = {
			
 
				+                            ivs: null,
			
 
				+                            timestamp: 0,
			
 
				+                        };
			
 
				+                    }
			
 
				+                    SEIBuffer = null;
			
 
				+                }
			
 
				+
			
 
				+                if (!initalSegmentFlag) {
			
 
				+                    decodedData.initSegmentData = null;
			
 
				+                    decodedData.codecInfo = null;
			
 
				+                } else {
			
 
				+                    initalSegmentFlag = false;
			
 
				+                    const info = {
			
 
				+                        id: 1,
			
 
				+                        width: width,
			
 
				+                        height: height,
			
 
				+                        type: "video",
			
 
				+                        profileIdc: SPSParser.getSpsValue("profile_idc"),
			
 
				+                        profileCompatibility: 0,
			
 
				+                        levelIdc: SPSParser.getSpsValue("level_idc"),
			
 
				+                        sps: [spsSegment],
			
 
				+                        pps: [ppsSegment],
			
 
				+                        timescale: 1e3,
			
 
				+                        fps: frameRate
			
 
				+                    };
			
 
				+                    decodedData.initSegmentData = info;
			
 
				+                    decodedData.codecInfo = SPSParser.getCodecInfo();
			
 
				+                    //console.log(info.pps)
			
 
				+                }
			
 
				+
			
 
				+                if (frameType === 'I') {
			
 
				+//console.log('ppsSegment: ', ppsSegment)
			
 
				+                    let h264parameterLength = spsSegment.length + ppsSegment.length + 8;
			
 
				+                    inputSegBufferSub = inputBufferSub.subarray(h264parameterLength, inputBufferSub.length);
			
 
				+                } else {
			
 
				+                    inputSegBufferSub = inputBufferSub.subarray(0, inputBufferSub.length);
			
 
				+                }
			
 
				+                if (inputSegBufferSub.length) {
			
 
				+                    let segSize = inputSegBufferSub.length - 4;
			
 
				+                    //mp4 box头
			
 
				+                    inputSegBufferSub[0] = (segSize & 0xFF000000) >>> 24;
			
 
				+                    inputSegBufferSub[1] = (segSize & 0xFF0000) >>> 16;
			
 
				+                    inputSegBufferSub[2] = (segSize & 0xFF00) >>> 8;
			
 
				+                    inputSegBufferSub[3] = (segSize & 0xFF);
			
 
				+
			
 
				+                    decodedData.frameData = new Uint8Array(inputSegBufferSub);
			
 
				+
			
 
				+                    let sample = {
			
 
				+                        duration: Math.round((1 / frameRate) * 1000),
			
 
				+                        size: inputSegBufferSub.length,
			
 
				+                        frame_time_stamp: null,
			
 
				+                        frameDuration: null,
			
 
				+                    };
			
 
				+                    sample.frame_time_stamp = rtpTimeStamp; //Todo：暂时为null，通过帧率控制duration
			
 
				+                    if (initalMediaFrameFlag) {
			
 
				+                        sample.frameDuration = 0;
			
 
				+                        initalMediaFrameFlag = false;
			
 
				+                    } else {
			
 
				+                        if (frameRate) {
			
 
				+                            frameCount++;
			
 
				+                            if (!(frameCount % frameRate)) { //每秒最后一帧时
			
 
				+                                sample.frameDuration = 1000 - durationTimeCount;
			
 
				+                                frameCount = 0;
			
 
				+                                durationTimeCount = 0;
			
 
				+                            } else {
			
 
				+                                sample.frameDuration = Math.round(1000 / frameRate);
			
 
				+                                durationTimeCount += Math.round(1000 / frameRate);
			
 
				+                            }
			
 
				+                        } else {
			
 
				+                            sample.frameDuration = (sample.frame_time_stamp - preSample.frame_time_stamp) / 90; // 时钟频率90000，timescale=1000
			
 
				+                        }
			
 
				+                        //console.log(sample.frameDuration)
			
 
				+                    }
			
 
				+                    preSample = sample;
			
 
				+                    decodedData.mediaSample = sample;
			
 
				+                    decodedData.timeStamp = rtpTimeStamp;
			
 
				+                }
			
 
				+                this.handleDecodedData(decodedData);
			
 
				+                inputLength = 0;
			
 
				+                decodedData.SEIInfo = null;
			
 
				+                inputSegBufferSub = null;
			
 
				+                if (frameType !== 'SEI') {
			
 
				+                    lastTimeStamp = RtpHeader.timeStamp;
			
 
				+                }
			
 
				+                frameType = '';
			
 
				+            }
			
 
				+            //console.log('xxxxxxxxxxxxxxxxxxxxxxxxx')
			
 
				+        },
			
 
				+
			
 
				+        set rtpSessionCallback(func) {
			
 
				+            this.handleDecodedData = func;
			
 
				+        },
			
 
				+
			
 
				+        setFrameRate(fps) {
			
 
				+            frameRate = fps;
			
 
				+            //console.log('frameRate: ', frameRate)
			
 
				+        },
			
 
				+
			
 
				+        setResolutionChangedCallback(callback) {
			
 
				+            this.resolutionChangedCallback = callback;
			
 
				+        }
			
 
				+    }
			
 
				+
			
 
				+    return new constructor();
			
 
				+
			
 
				+    function setBuffer(buffer1, buffer2) {
			
 
				+        let bufferTemp = buffer1;
			
 
				+        if ((inputLength + buffer2.length) > buffer1.length) {
			
 
				+            bufferTemp = new Uint8Array(buffer1.length + size1M);
			
 
				+        }
			
 
				+
			
 
				+        bufferTemp.set(buffer2, inputLength);
			
 
				+        inputLength += buffer2.length;
			
 
				+        return bufferTemp;
			
 
				+    }
			
 
				+}
			
 
				+
			
 
				+
			
 
				+/**
			
 
				+ * 去除SPS中的Emulation字节
			
 
				+ * @param data SPS源数据
			
 
				+ * @returns {Array} 去除后Emulation字节后的SPS
			
 
				+ */
			
 
				+function removeH264or5EmulationBytes(data) {
			
 
				+    let toSize = 0;
			
 
				+    let i = 0;
			
 
				+    let to = [];
			
 
				+    let dataLength = data.length;
			
 
				+    while (i < dataLength) {
			
 
				+        if (i + 2 < dataLength && data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 3) {
			
 
				+            to[toSize] = to[toSize + 1] = 0;
			
 
				+            toSize += 2;
			
 
				+            i += 3;
			
 
				+        } else {
			
 
				+            to[toSize] = data[i];
			
 
				+            toSize += 1;
			
 
				+            i += 1;
			
 
				+        }
			
 
				+    }
			
 
				+    return to;
			
 
				+}
			
 
				+
			
 
				+/**
			
 
				+ * 解析SEI信息
			
 
				+ * @param data
			
 
				+ * @return {Array}
			
 
				+ */
			
 
				+function SEIParse(data) {
			
 
				+    //console.log(data)
			
 
				+    if ((data[0] & 0x1f) !== 6) {
			
 
				+        //非SEI
			
 
				+        return null;
			
 
				+    }
			
 
				+
			
 
				+    if (data[1] !== 0x55 || data[2] !== 0x4C || data[3] !== 0x53 || data[4] !== 0x40) {
			
 
				+        //ULS@开头
			
 
				+        console.warn('unknown SEI type');
			
 
				+        return null;
			
 
				+    }
			
 
				+
			
 
				+    let dataLength = data.length;
			
 
				+    let type = (data[5] << 8) + data[6];
			
 
				+    let checkSum = (data[7] << 8) + data[8];
			
 
				+    // if(dataLength !== (checkSum + 1 + 4 + 4)) {
			
 
				+    //     console.log('SEI check fail!');
			
 
				+    //     return null;
			
 
				+    // }
			
 
				+    let result;
			
 
				+    data = data.subarray(9);
			
 
				+    switch (type) {
			
 
				+        case 0:
			
 
				+            result = parseFace(data);
			
 
				+            break;
			
 
				+        case 1:
			
 
				+            //console.log(parseBody(data))
			
 
				+            result = parseBody(data);
			
 
				+            break;
			
 
				+        case 2:
			
 
				+            result = parseRegion(data);
			
 
				+            break;
			
 
				+        case 3:
			
 
				+            result = parseBodyEx(data);
			
 
				+            break;
			
 
				+        case 4:
			
 
				+            result = parseOverSpeed(data);
			
 
				+            break;
			
 
				+        default:
			
 
				+            result = null;
			
 
				+            break;
			
 
				+    }
			
 
				+    return result;
			
 
				+}
			
 
				+
			
 
				+function parseFace(data) {
			
 
				+    //console.log(data)
			
 
				+    let dataLength = data.length;
			
 
				+    let contents = [];
			
 
				+    while (dataLength > 0) {
			
 
				+        //console.log('dataLength: ', dataLength)
			
 
				+        let x0 = ((data[4] & 0x7f) << 8) + data[5],
			
 
				+            y0 = ((data[6] & 0x7f) << 8) + data[7],
			
 
				+            width = ((data[8] & 0x7f) << 8) + data[9] - x0,
			
 
				+            height = ((data[10] & 0x7f) << 8) + data[11] - y0;
			
 
				+        let content = {
			
 
				+            type: 'rect',
			
 
				+            id: (data[2] << 8) + data[3],
			
 
				+            rect: [x0, y0, width, height],
			
 
				+            state: data[1] & 0x01,
			
 
				+            quality: (data[1] & 0x02) >> 1,
			
 
				+        };
			
 
				+        Array.prototype.push.apply(contents, [content]);
			
 
				+        data = data.subarray(12);
			
 
				+        dataLength = data.length;
			
 
				+    }
			
 
				+
			
 
				+    return contents;
			
 
				+}
			
 
				+
			
 
				+function parseBody(data) {
			
 
				+    let dataLength = data.length;
			
 
				+    let contents = [];
			
 
				+    while (dataLength > 0) {
			
 
				+        //console.log('dataLength: ', dataLength)
			
 
				+        let x0 = ((data[4] & 0x7f) << 8) + data[5],
			
 
				+            y0 = ((data[6] & 0x7f) << 8) + data[7],
			
 
				+            width = ((data[8] & 0x7f) << 8) + data[9] - x0,
			
 
				+            height = ((data[10] & 0x7f) << 8) + data[11] - y0,
			
 
				+            boxConfidence = ((data[12] & 0x7f) << 8) + data[13];
			
 
				+        let points = [];
			
 
				+
			
 
				+        for (let i = 0; i < 17; i++) {
			
 
				+            let point = {
			
 
				+                x: ((data[16 + i * 8] & 0x7f) << 8) + data[17 + i * 8],
			
 
				+                y: ((data[18 + i * 8] & 0x7f) << 8) + data[19 + i * 8],
			
 
				+                confidence: ((data[20 + i * 8] & 0x7f) << 8) + data[21 + i * 8],
			
 
				+                // x: Math.random() * 8191,
			
 
				+                // y: Math.random() * 8191,
			
 
				+                // confidence: 1,
			
 
				+            };
			
 
				+            points.push(point);
			
 
				+        }
			
 
				+        let content = {
			
 
				+            type: 'coco-pose',
			
 
				+            id: (data[2] << 8) + data[3],
			
 
				+            handsUp: data[1] & 0x04,
			
 
				+            boundingBox: [x0, y0, width, height],
			
 
				+            boxConfidence,
			
 
				+            points: parseBodyToTree(points),
			
 
				+            state: data[1] & 0x01,
			
 
				+        };
			
 
				+        Array.prototype.push.apply(contents, [content]);
			
 
				+        data = data.subarray(152);
			
 
				+        dataLength = data.length;
			
 
				+
			
 
				+    }
			
 
				+    return contents;
			
 
				+}
			
 
				+
			
 
				+function parseRegion(data) {
			
 
				+    let dataLength = data.length;
			
 
				+    let contents = [];
			
 
				+    while (dataLength > 0) {
			
 
				+        let pointNum = (data[0] << 8) + data[1],
			
 
				+            state = data[3] & 0x03,
			
 
				+            area = [];
			
 
				+
			
 
				+        for (let i = 0; i < pointNum; i++) {
			
 
				+            let point = {
			
 
				+                x: ((data[i * 4 + 4] & 0x7f) << 8) + data[i * 4 + 5],
			
 
				+                y: ((data[i * 4 + 6] & 0x7f) << 8) + data[i * 4 + 7],
			
 
				+            };
			
 
				+            area.push(point);
			
 
				+        }
			
 
				+        let content = {
			
 
				+            type: 'region-detect',
			
 
				+            state,
			
 
				+            area
			
 
				+        };
			
 
				+        Array.prototype.push.apply(contents, [content]);
			
 
				+        data = data.subarray(pointNum * 4 + 4);
			
 
				+        dataLength = data.length;
			
 
				+    }
			
 
				+    return contents;
			
 
				+}
			
 
				+
			
 
				+function parseBodyEx(data) {
			
 
				+    let dataLength = data.length;
			
 
				+    let contents = [];
			
 
				+    while (dataLength > 0) {
			
 
				+        //console.log('dataLength: ', dataLength)
			
 
				+        let x0 = ((data[4] & 0x7f) << 8) + data[5],
			
 
				+            y0 = ((data[6] & 0x7f) << 8) + data[7],
			
 
				+            width = ((data[8] & 0x7f) << 8) + data[9] - x0,
			
 
				+            height = ((data[10] & 0x7f) << 8) + data[11] - y0,
			
 
				+            boxConfidence = ((data[12] & 0x7f) << 8) + data[13];
			
 
				+        let points = [];
			
 
				+
			
 
				+        for (let i = 0; i < 17; i++) {
			
 
				+            let point = {
			
 
				+                x: ((data[16 + i * 8] & 0x7f) << 8) + data[17 + i * 8],
			
 
				+                y: ((data[18 + i * 8] & 0x7f) << 8) + data[19 + i * 8],
			
 
				+                confidence: ((data[20 + i * 8] & 0x7f) << 8) + data[21 + i * 8],
			
 
				+            };
			
 
				+            points.push(point);
			
 
				+        }
			
 
				+        let guides = [
			
 
				+            {
			
 
				+                x: ((data[16 + 17 * 8] & 0x7f) << 8) + data[17 + 17 * 8],
			
 
				+                y: ((data[18 + 17 * 8] & 0x7f) << 8) + data[19 + 17 * 8],
			
 
				+            },
			
 
				+            {
			
 
				+                x: ((data[20 + 17 * 8] & 0x7f) << 8) + data[21 + 17 * 8],
			
 
				+                y: ((data[22 + 17 * 8] & 0x7f) << 8) + data[23 + 17 * 8],
			
 
				+            }
			
 
				+        ];
			
 
				+        let content = {
			
 
				+            type: 'coco-poseex',
			
 
				+            id: (data[2] << 8) + data[3],
			
 
				+            Loiter: data[1] & 0x03,
			
 
				+            Standing: (data[1] & 0x04) >> 2,
			
 
				+            Alone: (data[1] & 0x08) >> 3,
			
 
				+            boundingBox: [x0, y0, width, height],
			
 
				+            boxConfidence,
			
 
				+            points: parseBodyToTree(points),
			
 
				+            guides,
			
 
				+            state: 1
			
 
				+        };
			
 
				+        Array.prototype.push.apply(contents, [content]);
			
 
				+        data = data.subarray(160);
			
 
				+        dataLength = data.length;
			
 
				+
			
 
				+    }
			
 
				+    return contents;
			
 
				+}
			
 
				+
			
 
				+function parseOverSpeed(data) {
			
 
				+    let dataLength = data.length;
			
 
				+    let contents = [];
			
 
				+    while (dataLength > 0) {
			
 
				+        //console.log('dataLength: ', dataLength)
			
 
				+        let speed = ((data[4] & 0x7f) << 8) + data[5],
			
 
				+            overSpeed = data[1] & 0x01;
			
 
				+        let content = {
			
 
				+            type: 'over-speed',
			
 
				+            id: (data[2] << 8) + data[3],
			
 
				+            speed,
			
 
				+            overSpeed,
			
 
				+            state: 1,
			
 
				+        };
			
 
				+        Array.prototype.push.apply(contents, [content]);
			
 
				+        data = data.subarray(8);
			
 
				+        dataLength = data.length;
			
 
				+    }
			
 
				+    return contents;
			
 
				+}
			
 
				+
			
 
				+/**
			
 
				+ * 将智能帧中的人体姿态点转化为树结构(双亲表示法)
			
 
				+ * @param points
			
 
				+ */
			
 
				+function parseBodyToTree(points) {
			
 
				+    let newPoints = [];
			
 
				+    newPoints[0] = {...points[0], parent: -1, pointColor: '#FF0002', lineColor: '#FF0002'};
			
 
				+    newPoints[1] = {...points[1], parent: 0, pointColor: '#FF0002', lineColor: '#FF0002'};
			
 
				+    newPoints[2] = {...points[2], parent: 0, pointColor: '#FF0002', lineColor: '#FF0002'};
			
 
				+    newPoints[3] = {...points[5], parent: 17, pointColor: '#D9E34F', lineColor: '#FF0002'};
			
 
				+    newPoints[4] = {...points[6], parent: 17, pointColor: '#D9E34F', lineColor: '#FF0002'};
			
 
				+    newPoints[5] = {...points[3], parent: 1, pointColor: '#00FF00', lineColor: '#FF0002'};
			
 
				+    newPoints[6] = {...points[4], parent: 2, pointColor: '#FFAC00', lineColor: '#FF0002'};
			
 
				+    newPoints[7] = {...points[7], parent: 3, pointColor: '#00FF45', lineColor: '#'};
			
 
				+    newPoints[8] = {...points[11], parent: 17, pointColor: '#EEC446', lineColor: '#'};
			
 
				+    newPoints[9] = {...points[8], parent: 4, pointColor: '#43D3AF', lineColor: '#'};
			
 
				+    newPoints[10] = {...points[12], parent: 17, pointColor: '#7A93E8', lineColor: '#'};
			
 
				+    newPoints[11] = {...points[9], parent: 7, pointColor: '#EFB842', lineColor: '#'};
			
 
				+    newPoints[12] = {...points[13], parent: 8, pointColor: '#E56C00', lineColor: '#'};
			
 
				+    newPoints[13] = {...points[10], parent: 9, pointColor: '#47CD43', lineColor: '#0096FF'};
			
 
				+    newPoints[14] = {...points[14], parent: 10, pointColor: '#3868D2', lineColor: '#00FF51'};
			
 
				+    newPoints[15] = {...points[15], parent: 12, pointColor: '#DF4D01', lineColor: '#5100FF'};
			
 
				+    newPoints[16] = {...points[16], parent: 14, pointColor: '#1E48D4', lineColor: '#00FFA0'};
			
 
				+    newPoints[17] = {
			
 
				+        x: (points[5].x + points[6].x) / 2,
			
 
				+        y: (points[5].y + points[6].y) / 2,
			
 
				+        parent: -1,
			
 
				+        pointColor: '#D9E34F',
			
 
				+        lineColor: '#00FFA0'
			
 
				+    };
			
 
				+    return newPoints;
			
 
				+}
			
--- a/piglet/202107121640/static/camera/src/MP4Remux.js
+++ b/piglet/202107121640/static/camera/src/MP4Remux.js
@@ -0,0 +1,573 @@
 
				+let _dtsBase;
			
 
				+let _types = [];
			
 
				+let datas = {};
			
 
				+
			
 
				+_types = {
			
 
				+    avc1: [], avcC: [], btrt: [], dinf: [],
			
 
				+    dref: [], esds: [], ftyp: [], hdlr: [],
			
 
				+    mdat: [], mdhd: [], mdia: [], mfhd: [],
			
 
				+    minf: [], moof: [], moov: [], mp4a: [],
			
 
				+    mvex: [], mvhd: [], sdtp: [], stbl: [],
			
 
				+    stco: [], stsc: [], stsd: [], stsz: [],
			
 
				+    stts: [], tfdt: [], tfhd: [], traf: [],
			
 
				+    trak: [], trun: [], trex: [], tkhd: [],
			
 
				+    vmhd: [], smhd: []
			
 
				+};
			
 
				+
			
 
				+class MP4Remux {
			
 
				+    constructor() {
			
 
				+
			
 
				+    }
			
 
				+
			
 
				+    init() {
			
 
				+        for (let name in _types) {
			
 
				+            _types[name] = [
			
 
				+                name.charCodeAt(0),
			
 
				+                name.charCodeAt(1),
			
 
				+                name.charCodeAt(2),
			
 
				+                name.charCodeAt(3)
			
 
				+            ];
			
 
				+        }
			
 
				+
			
 
				+        _dtsBase = 0;
			
 
				+
			
 
				+        datas.FTYP = new Uint8Array([
			
 
				+            0x69, 0x73, 0x6F, 0x6D, // major_brand: isom
			
 
				+            0x0, 0x0, 0x0, 0x1,  // minor_version: 0x01
			
 
				+            0x69, 0x73, 0x6F, 0x6D, // isom
			
 
				+            0x61, 0x76, 0x63, 0x31  // avc1
			
 
				+        ]);
			
 
				+
			
 
				+        datas.STSD_PREFIX = new Uint8Array([
			
 
				+            0x00, 0x00, 0x00, 0x00, // version(0) + flags
			
 
				+            0x00, 0x00, 0x00, 0x01  // entry_count
			
 
				+        ]);
			
 
				+
			
 
				+        datas.STTS = new Uint8Array([
			
 
				+            0x00, 0x00, 0x00, 0x00, // version(0) + flags
			
 
				+            0x00, 0x00, 0x00, 0x00  // entry_count
			
 
				+        ]);
			
 
				+
			
 
				+        datas.STSC = datas.STCO = datas.STTS;
			
 
				+
			
 
				+        datas.STSZ = new Uint8Array([
			
 
				+            0x00, 0x00, 0x00, 0x00, // version(0) + flags
			
 
				+            0x00, 0x00, 0x00, 0x00, // sample_size
			
 
				+            0x00, 0x00, 0x00, 0x00  // sample_count
			
 
				+        ]);
			
 
				+
			
 
				+        datas.HDLR_VIDEO = new Uint8Array([
			
 
				+            0x00, 0x00, 0x00, 0x00, // version(0) + flags
			
 
				+            0x00, 0x00, 0x00, 0x00, // pre_defined
			
 
				+            0x76, 0x69, 0x64, 0x65, // handler_type: 'vide'
			
 
				+            0x00, 0x00, 0x00, 0x00, // reserved: 3 * 4 bytes
			
 
				+            0x00, 0x00, 0x00, 0x00,
			
 
				+            0x00, 0x00, 0x00, 0x00,
			
 
				+            0x56, 0x69, 0x64, 0x65,
			
 
				+            0x6F, 0x48, 0x61, 0x6E,
			
 
				+            0x64, 0x6C, 0x65, 0x72, 0x00 // name: VideoHandler
			
 
				+        ]);
			
 
				+
			
 
				+        datas.HDLR_AUDIO = new Uint8Array([
			
 
				+            0x00, 0x00, 0x00, 0x00, // version(0) + flags
			
 
				+            0x00, 0x00, 0x00, 0x00, // pre_defined
			
 
				+            0x73, 0x6F, 0x75, 0x6E, // handler_type: 'soun'
			
 
				+            0x00, 0x00, 0x00, 0x00, // reserved: 3 * 4 bytes
			
 
				+            0x00, 0x00, 0x00, 0x00,
			
 
				+            0x00, 0x00, 0x00, 0x00,
			
 
				+            0x53, 0x6F, 0x75, 0x6E,
			
 
				+            0x64, 0x48, 0x61, 0x6E,
			
 
				+            0x64, 0x6C, 0x65, 0x72, 0x00 // name: SoundHandler
			
 
				+        ]);
			
 
				+
			
 
				+        datas.DREF = new Uint8Array([
			
 
				+            0x00, 0x00, 0x00, 0x00, // version(0) + flags
			
 
				+            0x00, 0x00, 0x00, 0x01, // entry_count
			
 
				+            0x00, 0x00, 0x00, 0x0C, // entry_size
			
 
				+            0x75, 0x72, 0x6C, 0x20, // type 'url '
			
 
				+            0x00, 0x00, 0x00, 0x01  // version(0) + flags
			
 
				+        ]);
			
 
				+
			
 
				+        // Sound media header
			
 
				+        datas.SMHD = new Uint8Array([
			
 
				+            0x00, 0x00, 0x00, 0x00, // version(0) + flags
			
 
				+            0x00, 0x00, 0x00, 0x00  // balance(2) + reserved(2)
			
 
				+        ]);
			
 
				+
			
 
				+        // video media header
			
 
				+        datas.VMHD = new Uint8Array([
			
 
				+            0x00, 0x00, 0x00, 0x01, // version(0) + flags
			
 
				+            0x00, 0x00,             // graphicsmode: 2 bytes
			
 
				+            0x00, 0x00, 0x00, 0x00, // opcolor: 3 * 2 bytes
			
 
				+            0x00, 0x00
			
 
				+        ]);
			
 
				+    }
			
 
				+
			
 
				+    initSegment(meta) {
			
 
				+        let ftyp = box(_types.ftyp, datas.FTYP);
			
 
				+        let moov = Moov(meta);
			
 
				+        let seg = new Uint8Array(ftyp.byteLength + moov.byteLength);
			
 
				+        seg.set(ftyp, 0);
			
 
				+        seg.set(moov, ftyp.byteLength);
			
 
				+        return seg;
			
 
				+    }
			
 
				+
			
 
				+    mediaSegment(sequenceNumber, track, data) {
			
 
				+        let moof = Moof(sequenceNumber, track);
			
 
				+        let frameData = mdat(data);
			
 
				+        let seg = new Uint8Array(moof.byteLength + frameData.byteLength);
			
 
				+        seg.set(moof, 0);
			
 
				+        seg.set(frameData, moof.byteLength);
			
 
				+        return seg
			
 
				+    }
			
 
				+}
			
 
				+
			
 
				+//组装initSegment
			
 
				+
			
 
				+function Moov(meta) {
			
 
				+    let mvhd = Mvhd(meta.timescale, meta.duration);
			
 
				+    let trak = Trak(meta);
			
 
				+    let mvex = Mvex(meta);
			
 
				+
			
 
				+    return box(_types.moov, mvhd, trak, mvex);
			
 
				+}
			
 
				+
			
 
				+//组装moov
			
 
				+function Mvhd(timescale, duration) {
			
 
				+    return box(_types.mvhd, new Uint8Array([
			
 
				+        0x00, 0x00, 0x00, 0x00,    // version(0) + flags
			
 
				+        0x00, 0x00, 0x00, 0x00,    // creation_time
			
 
				+        0x00, 0x00, 0x00, 0x00,    // modification_time
			
 
				+        (timescale >>> 24) & 0xFF, // timescale: 4 bytes
			
 
				+        (timescale >>> 16) & 0xFF,
			
 
				+        (timescale >>>  8) & 0xFF,
			
 
				+        (timescale) & 0xFF,
			
 
				+        (duration >>> 24) & 0xFF,  // duration: 4 bytes
			
 
				+        (duration >>> 16) & 0xFF,
			
 
				+        (duration >>>  8) & 0xFF,
			
 
				+        (duration) & 0xFF,
			
 
				+        0x00, 0x01, 0x00, 0x00,    // Preferred rate: 1.0
			
 
				+        0x01, 0x00, 0x00, 0x00,    // PreferredVolume(1.0, 2bytes) + reserved(2bytes)
			
 
				+        0x00, 0x00, 0x00, 0x00,    // reserved: 4 + 4 bytes
			
 
				+        0x00, 0x00, 0x00, 0x00,
			
 
				+        0x00, 0x01, 0x00, 0x00,    // ----begin composition matrix----
			
 
				+        0x00, 0x00, 0x00, 0x00,
			
 
				+        0x00, 0x00, 0x00, 0x00,
			
 
				+        0x00, 0x00, 0x00, 0x00,
			
 
				+        0x00, 0x01, 0x00, 0x00,
			
 
				+        0x00, 0x00, 0x00, 0x00,
			
 
				+        0x00, 0x00, 0x00, 0x00,
			
 
				+        0x00, 0x00, 0x00, 0x00,
			
 
				+        0x40, 0x00, 0x00, 0x00,    // ----end composition matrix----
			
 
				+        0x00, 0x00, 0x00, 0x00,    // ----begin pre_defined 6 * 4 bytes----
			
 
				+        0x00, 0x00, 0x00, 0x00,
			
 
				+        0x00, 0x00, 0x00, 0x00,
			
 
				+        0x00, 0x00, 0x00, 0x00,
			
 
				+        0x00, 0x00, 0x00, 0x00,
			
 
				+        0x00, 0x00, 0x00, 0x00,    // ----end pre_defined 6 * 4 bytes----
			
 
				+        0xFF, 0xFF, 0xFF, 0xFF     // next_track_ID
			
 
				+    ]));
			
 
				+}
			
 
				+
			
 
				+function Trak(meta) {
			
 
				+    return box(_types.trak, Tkhd(meta), Mdia(meta));
			
 
				+}
			
 
				+
			
 
				+function Mvex(meta) {
			
 
				+    return box(_types.mvex, trex(meta));
			
 
				+}
			
 
				+
			
 
				+//组装trak
			
 
				+function Tkhd(meta) {
			
 
				+    let trackId = meta.id;
			
 
				+    let duration = meta.duration;
			
 
				+    let width = meta.width;
			
 
				+    let height = meta.height;
			
 
				+
			
 
				+    return box(_types.tkhd, new Uint8Array([
			
 
				+        0x00, 0x00, 0x00, 0x07,   // version(0) + flags
			
 
				+        0x00, 0x00, 0x00, 0x00,   // creation_time
			
 
				+        0x00, 0x00, 0x00, 0x00,   // modification_time
			
 
				+        (trackId >>> 24) & 0xFF,  // track_ID: 4 bytes
			
 
				+        (trackId >>> 16) & 0xFF,
			
 
				+        (trackId >>>  8) & 0xFF,
			
 
				+        (trackId) & 0xFF,
			
 
				+        0x00, 0x00, 0x00, 0x00,   // reserved: 4 bytes
			
 
				+        (duration >>> 24) & 0xFF, // duration: 4 bytes
			
 
				+        (duration >>> 16) & 0xFF,
			
 
				+        (duration >>>  8) & 0xFF,
			
 
				+        (duration) & 0xFF,
			
 
				+        0x00, 0x00, 0x00, 0x00,   // reserved: 2 * 4 bytes
			
 
				+        0x00, 0x00, 0x00, 0x00,
			
 
				+        0x00, 0x00, 0x00, 0x00,   // layer(2bytes) + alternate_group(2bytes)
			
 
				+        0x00, 0x00, 0x00, 0x00,   // volume(2bytes) + reserved(2bytes)
			
 
				+        0x00, 0x01, 0x00, 0x00,   // ----begin composition matrix----
			
 
				+        0x00, 0x00, 0x00, 0x00,
			
 
				+        0x00, 0x00, 0x00, 0x00,
			
 
				+        0x00, 0x00, 0x00, 0x00,
			
 
				+        0x00, 0x01, 0x00, 0x00,
			
 
				+        0x00, 0x00, 0x00, 0x00,
			
 
				+        0x00, 0x00, 0x00, 0x00,
			
 
				+        0x00, 0x00, 0x00, 0x00,
			
 
				+        0x40, 0x00, 0x00, 0x00,   // ----end composition matrix----
			
 
				+        (width >>> 8) & 0xFF,     // width and height
			
 
				+        (width) & 0xFF,
			
 
				+        0x00, 0x00,
			
 
				+        (height >>> 8) & 0xFF,
			
 
				+        (height) & 0xFF,
			
 
				+        0x00, 0x00
			
 
				+    ]));
			
 
				+}
			
 
				+
			
 
				+function Mdia(meta) {
			
 
				+    return box(_types.mdia, mdhd(meta), hdlr(meta), minf(meta));
			
 
				+}
			
 
				+
			
 
				+//组装mdia
			
 
				+function mdhd(meta) {
			
 
				+    let timescale = meta.timescale;
			
 
				+    let duration = meta.duration;
			
 
				+
			
 
				+    return box(_types.mdhd, new Uint8Array([
			
 
				+        0x00, 0x00, 0x00, 0x00,    // version(0) + flags
			
 
				+        0x00, 0x00, 0x00, 0x00,    // creation_time
			
 
				+        0x00, 0x00, 0x00, 0x00,    // modification_time
			
 
				+        (timescale >>> 24) & 0xFF, // timescale: 4 bytes
			
 
				+        (timescale >>> 16) & 0xFF,
			
 
				+        (timescale >>>  8) & 0xFF,
			
 
				+        (timescale) & 0xFF,
			
 
				+        (duration >>> 24) & 0xFF,  // duration: 4 bytes
			
 
				+        (duration >>> 16) & 0xFF,
			
 
				+        (duration >>>  8) & 0xFF,
			
 
				+        (duration) & 0xFF,
			
 
				+        0x55, 0xC4,                // language: und (undetermined)
			
 
				+        0x00, 0x00                 // pre_defined = 0
			
 
				+    ]));
			
 
				+}
			
 
				+
			
 
				+function hdlr(meta) {
			
 
				+    let data = null;
			
 
				+
			
 
				+    if (meta.type === 'audio') {
			
 
				+        data = datas.HDLR_AUDIO;
			
 
				+    } else {
			
 
				+        data = datas.HDLR_VIDEO;
			
 
				+    }
			
 
				+
			
 
				+    return box(_types.hdlr, data);
			
 
				+}
			
 
				+
			
 
				+function minf(meta) {
			
 
				+    let xmhd = null;
			
 
				+
			
 
				+    if (meta.type === 'audio') {
			
 
				+        xmhd = box(_types.smhd, datas.SMHD);
			
 
				+    } else {
			
 
				+        xmhd = box(_types.vmhd, datas.VMHD);
			
 
				+    }
			
 
				+
			
 
				+    return box(_types.minf, xmhd, dinf(), stbl(meta));
			
 
				+}
			
 
				+
			
 
				+//组装minf
			
 
				+function dinf() {
			
 
				+    return box(_types.dinf, box(_types.dref, datas.DREF));
			
 
				+}
			
 
				+
			
 
				+function stbl(meta) {
			
 
				+    let result = box(_types.stbl,   // type: stbl
			
 
				+        stsd(meta),                   // Sample Description Table
			
 
				+        box(_types.stts, datas.STTS), // Time-To-Sample
			
 
				+        box(_types.stsc, datas.STSC), // Sample-To-Chunk
			
 
				+        box(_types.stsz, datas.STSZ), // Sample size
			
 
				+        box(_types.stco, datas.STCO)  // Chunk offset
			
 
				+    );
			
 
				+
			
 
				+    return result;
			
 
				+}
			
 
				+
			
 
				+//组装stbl
			
 
				+function stsd(meta) {
			
 
				+    if (meta.type === 'audio') {
			
 
				+        return box(_types.stsd, datas.STSD_PREFIX, mp4a(meta));
			
 
				+    } else {
			
 
				+        return box(_types.stsd, datas.STSD_PREFIX, avc1(meta));
			
 
				+    }
			
 
				+}
			
 
				+
			
 
				+//组装stsd
			
 
				+function mp4a(meta) {
			
 
				+    let channelCount = meta.channelCount;
			
 
				+    let sampleRate = meta.audioSampleRate;
			
 
				+
			
 
				+    let data = new Uint8Array([
			
 
				+        0x00, 0x00, 0x00, 0x00,    // reserved(4)
			
 
				+        0x00, 0x00, 0x00, 0x01,    // reserved(2) + data_reference_index(2)
			
 
				+        0x00, 0x00, 0x00, 0x00,    // reserved: 2 * 4 bytes
			
 
				+        0x00, 0x00, 0x00, 0x00,
			
 
				+        0x00, channelCount,        // channelCount(2)
			
 
				+        0x00, 0x10,                // sampleSize(2)
			
 
				+        0x00, 0x00, 0x00, 0x00,    // reserved(4)
			
 
				+        (sampleRate >>> 8) & 0xFF, // Audio sample rate
			
 
				+        (sampleRate) & 0xFF,
			
 
				+        0x00, 0x00
			
 
				+    ]);
			
 
				+
			
 
				+    return box(_types.mp4a, data, esds(meta));
			
 
				+}
			
 
				+
			
 
				+function avc1(meta) {
			
 
				+    let width = meta.width;
			
 
				+    let height = meta.height;
			
 
				+
			
 
				+    let sps = meta.sps || [], pps = meta.pps || [], sequenceParameterSets = [], pictureParameterSets = [];
			
 
				+    for (let i = 0; i < sps.length; i++) {
			
 
				+        sequenceParameterSets.push((sps[i].byteLength & 65280) >>> 8);
			
 
				+        sequenceParameterSets.push(sps[i].byteLength & 255);
			
 
				+        sequenceParameterSets = sequenceParameterSets.concat(Array.prototype.slice.call(sps[i]))
			
 
				+    }
			
 
				+    for (let i = 0; i < pps.length; i++) {
			
 
				+        pictureParameterSets.push((pps[i].byteLength & 65280) >>> 8);
			
 
				+        pictureParameterSets.push(pps[i].byteLength & 255);
			
 
				+        pictureParameterSets = pictureParameterSets.concat(Array.prototype.slice.call(pps[i]))
			
 
				+    }
			
 
				+
			
 
				+    //Todo: 待测，如果视频有问题，修改这里
			
 
				+    // let data = new Uint8Array([
			
 
				+    //     0x00, 0x00, 0x00, 0x00, // reserved(4)
			
 
				+    //     0x00, 0x00, 0x00, 0x01, // reserved(2) + data_reference_index(2)
			
 
				+    //     0x00, 0x00, 0x00, 0x00, // pre_defined(2) + reserved(2)
			
 
				+    //     0x00, 0x00, 0x00, 0x00, // pre_defined: 3 * 4 bytes
			
 
				+    //     0x00, 0x00, 0x00, 0x00,
			
 
				+    //     0x00, 0x00, 0x00, 0x00,
			
 
				+    //     (width >>> 8) & 0xFF,   // width: 2 bytes
			
 
				+    //     (width) & 0xFF,
			
 
				+    //     (height >>> 8) & 0xFF,  // height: 2 bytes
			
 
				+    //     (height) & 0xFF,
			
 
				+    //     0x00, 0x48, 0x00, 0x00, // horizresolution: 4 bytes
			
 
				+    //     0x00, 0x48, 0x00, 0x00, // vertresolution: 4 bytes
			
 
				+    //     0x00, 0x00, 0x00, 0x00, // reserved: 4 bytes
			
 
				+    //     0x00, 0x01,             // frame_count
			
 
				+    //     0x0A,                   // strlen
			
 
				+    //     0x78, 0x71, 0x71, 0x2F, // compressorname: 32 bytes
			
 
				+    //     0x66, 0x6C, 0x76, 0x2E,
			
 
				+    //     0x6A, 0x73, 0x00, 0x00,
			
 
				+    //     0x00, 0x00, 0x00, 0x00,
			
 
				+    //     0x00, 0x00, 0x00, 0x00,
			
 
				+    //     0x00, 0x00, 0x00, 0x00,
			
 
				+    //     0x00, 0x00, 0x00, 0x00,
			
 
				+    //     0x00, 0x00, 0x00,
			
 
				+    //     0x00, 0x18,             // depth
			
 
				+    //     0xFF, 0xFF              // pre_defined = -1
			
 
				+    // ]);
			
 
				+
			
 
				+    let data = new Uint8Array(
			
 
				+        [0, 0, 0, 0,
			
 
				+            0, 0, 0, 1,
			
 
				+            0, 0, 0, 0,
			
 
				+            0, 0, 0, 0,
			
 
				+            0, 0, 0, 0,
			
 
				+            0, 0, 0, 0,
			
 
				+            (65280 & width) >> 8,
			
 
				+            255 & width,
			
 
				+            (65280 & height) >> 8,
			
 
				+            255 & height,
			
 
				+            0, 72, 0, 0,
			
 
				+            0, 72, 0, 0,
			
 
				+            0, 0, 0, 0,
			
 
				+            0, 1, 19, 0,
			
 
				+            0, 0, 0, 0,
			
 
				+            0, 0, 0, 0,
			
 
				+            0, 0, 0, 0,
			
 
				+            0, 0, 0, 0,
			
 
				+            0, 0, 0, 0,
			
 
				+            0, 0, 0, 0,
			
 
				+            0, 0, 0, 0,
			
 
				+            0, 0, 0, 24, 17, 17]);
			
 
				+
			
 
				+    return box(_types.avc1, data, box(_types.avcC, new Uint8Array([1, meta.profileIdc, meta.profileCompatibility, meta.levelIdc, 255].concat([sps.length]).concat(sequenceParameterSets).concat([pps.length]).concat(pictureParameterSets))));
			
 
				+}
			
 
				+
			
 
				+//组装mp4a
			
 
				+function esds(meta) {
			
 
				+    let config = meta.config;
			
 
				+    let configSize = config.length;
			
 
				+    let data = new Uint8Array([
			
 
				+        0x00, 0x00, 0x00, 0x00, // version 0 + flags
			
 
				+
			
 
				+        0x03,                   // descriptor_type
			
 
				+        0x17 + configSize,      // length3
			
 
				+        0x00, 0x01,             // es_id
			
 
				+        0x00,                   // stream_priority
			
 
				+
			
 
				+        0x04,                   // descriptor_type
			
 
				+        0x0F + configSize,      // length
			
 
				+        0x40,                   // codec: mpeg4_audio
			
 
				+        0x15,                   // stream_type: Audio
			
 
				+        0x00, 0x00, 0x00,       // buffer_size
			
 
				+        0x00, 0x00, 0x00, 0x00, // maxBitrate
			
 
				+        0x00, 0x00, 0x00, 0x00, // avgBitrate
			
 
				+
			
 
				+        0x05                    // descriptor_type
			
 
				+    ].concat(
			
 
				+        [configSize]
			
 
				+    ).concat(
			
 
				+        config
			
 
				+    ).concat(
			
 
				+        [0x06, 0x01, 0x02]      // GASpecificConfig
			
 
				+    ));
			
 
				+
			
 
				+    return box(_types.esds, data);
			
 
				+}
			
 
				+
			
 
				+//组装mvex
			
 
				+function trex(meta) {
			
 
				+    var trackId = meta.id;
			
 
				+    var data = new Uint8Array([
			
 
				+        0x00, 0x00, 0x00, 0x00,  // version(0) + flags
			
 
				+        (trackId >>> 24) & 0xFF, // track_ID
			
 
				+        (trackId >>> 16) & 0xFF,
			
 
				+        (trackId >>>  8) & 0xFF,
			
 
				+        (trackId) & 0xFF,
			
 
				+        0x00, 0x00, 0x00, 0x01,  // default_sample_description_index
			
 
				+        0x00, 0x00, 0x00, 0x00,  // default_sample_duration
			
 
				+        0x00, 0x00, 0x00, 0x00,  // default_sample_size
			
 
				+        0x00, 0x01, 0x00, 0x01   // default_sample_flags
			
 
				+    ]);
			
 
				+
			
 
				+    return box(_types.trex, data);
			
 
				+}
			
 
				+
			
 
				+//组装mediaSegment
			
 
				+function Moof(sequenceNumber, track) {
			
 
				+    return box(_types.moof, mfhd(sequenceNumber), traf(track));
			
 
				+}
			
 
				+
			
 
				+function mdat(data) {
			
 
				+    return box(_types.mdat, data);
			
 
				+}
			
 
				+
			
 
				+//组装moof
			
 
				+function mfhd(sequenceNumber) {
			
 
				+    var data = new Uint8Array([
			
 
				+        0x00, 0x00, 0x00, 0x00,
			
 
				+        (sequenceNumber >>> 24) & 0xFF, // sequence_number: int32
			
 
				+        (sequenceNumber >>> 16) & 0xFF,
			
 
				+        (sequenceNumber >>>  8) & 0xFF,
			
 
				+        (sequenceNumber) & 0xFF
			
 
				+    ]);
			
 
				+
			
 
				+    return box(_types.mfhd, data);
			
 
				+}
			
 
				+
			
 
				+function traf(track) {
			
 
				+    //console.log(track)
			
 
				+    var trackFragmentHeader = null, trackFragmentDecodeTime = null, trackFragmentRun = null, dataOffset = null;
			
 
				+    trackFragmentHeader = box(_types.tfhd, new Uint8Array([0, 2, 0, 0, 0, 0, 0, 1]));
			
 
				+    trackFragmentDecodeTime = box(_types.tfdt,
			
 
				+        new Uint8Array([
			
 
				+            0, 0, 0, 0,
			
 
				+            track.baseMediaDecodeTime >>> 24 & 255,
			
 
				+            track.baseMediaDecodeTime >>> 16 & 255,
			
 
				+            track.baseMediaDecodeTime >>> 8 & 255,
			
 
				+            track.baseMediaDecodeTime & 255
			
 
				+        ]));
			
 
				+    dataOffset = 16 + 16 + 8 + 16 + 8 + 8;
			
 
				+    trackFragmentRun = trun(track, dataOffset);
			
 
				+    return box(_types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun)
			
 
				+}
			
 
				+
			
 
				+//组装traf
			
 
				+function trun(track, offset) {
			
 
				+    if (track.type === "audio") {
			
 
				+        return audioTrun(track, offset)
			
 
				+    }
			
 
				+    return videoTrun(track, offset)
			
 
				+}
			
 
				+
			
 
				+//组装trun
			
 
				+function videoTrun(track, _offset) {
			
 
				+    var bytes = null, samples = null, sample = null, i = 0;
			
 
				+    var offset = _offset;
			
 
				+    samples = track.samples || [];
			
 
				+    if (samples[0].frameDuration === null) {
			
 
				+        offset += 8 + 12 + 4 + 4 * samples.length;
			
 
				+        bytes = trunHeader(samples, offset);
			
 
				+        for (i = 0; i < samples.length; i++) {
			
 
				+            sample = samples[i];
			
 
				+            bytes = bytes.concat([(sample.size & 4278190080) >>> 24, (sample.size & 16711680) >>> 16, (sample.size & 65280) >>> 8, sample.size & 255])
			
 
				+        }
			
 
				+    } else {
			
 
				+        offset += 8 + 12 + 4 + 4 * samples.length + 4 * samples.length;
			
 
				+        bytes = trunHeader1(samples, offset);
			
 
				+        for (i = 0; i < samples.length; i++) {
			
 
				+            sample = samples[i];
			
 
				+            bytes = bytes.concat([(sample.frameDuration & 4278190080) >>> 24, (sample.frameDuration & 16711680) >>> 16, (sample.frameDuration & 65280) >>> 8, sample.frameDuration & 255, (sample.size & 4278190080) >>> 24, (sample.size & 16711680) >>> 16, (sample.size & 65280) >>> 8, sample.size & 255])
			
 
				+        }
			
 
				+    }
			
 
				+    return box(_types.trun, new Uint8Array(bytes))
			
 
				+}
			
 
				+
			
 
				+function audioTrun(track, _offset) {
			
 
				+    var bytes = null, samples = null, sample = null, i = 0;
			
 
				+    var offset = _offset;
			
 
				+    samples = track.samples || [];
			
 
				+    offset += 8 + 12 + 8 * samples.length;
			
 
				+    bytes = trunHeader(samples, offset);
			
 
				+    for (i = 0; i < samples.length; i++) {
			
 
				+        sample = samples[i];
			
 
				+        bytes = bytes.concat([(sample.duration & 4278190080) >>> 24, (sample.duration & 16711680) >>> 16, (sample.duration & 65280) >>> 8, sample.duration & 255, (sample.size & 4278190080) >>> 24, (sample.size & 16711680) >>> 16, (sample.size & 65280) >>> 8, sample.size & 255])
			
 
				+    }
			
 
				+    return box(_types.trun, new Uint8Array(bytes))
			
 
				+}
			
 
				+
			
 
				+//组装videoTurn
			
 
				+function trunHeader(samples, offset) {
			
 
				+    return [0, 0, 2, 5, (samples.length & 4278190080) >>> 24, (samples.length & 16711680) >>> 16, (samples.length & 65280) >>> 8, samples.length & 255, (offset & 4278190080) >>> 24, (offset & 16711680) >>> 16, (offset & 65280) >>> 8, offset & 255, 0, 0, 0, 0]
			
 
				+}
			
 
				+
			
 
				+function trunHeader1(samples, offset) {
			
 
				+    return [0, 0, 3, 5, (samples.length & 4278190080) >>> 24, (samples.length & 16711680) >>> 16, (samples.length & 65280) >>> 8, samples.length & 255, (offset & 4278190080) >>> 24, (offset & 16711680) >>> 16, (offset & 65280) >>> 8, offset & 255, 0, 0, 0, 0]
			
 
				+}
			
 
				+
			
 
				+/**
			
 
				+ *
			
 
				+ * @param type
			
 
				+ * @returns {Uint8Array}
			
 
				+ */
			
 
				+function box(type, ...items) {
			
 
				+    let size = 8;
			
 
				+    //Todo: 测试一下这里
			
 
				+    //let arrs = Array.prototype.slice.call(arguments, 1);
			
 
				+    let arrs = [];
			
 
				+    arrs.push(...items);
			
 
				+    for (let i = 0; i < arrs.length; i++) {
			
 
				+        size += arrs[i].byteLength;
			
 
				+    }
			
 
				+
			
 
				+    let data = new Uint8Array(size);
			
 
				+    let pos = 0;
			
 
				+
			
 
				+    // set size
			
 
				+    data[pos++] = size >>> 24 & 0xFF;
			
 
				+    data[pos++] = size >>> 16 & 0xFF;
			
 
				+    data[pos++] = size >>> 8 & 0xFF;
			
 
				+    data[pos++] = size & 0xFF;
			
 
				+
			
 
				+    // set type
			
 
				+    data.set(type, pos);
			
 
				+    pos += 4;
			
 
				+
			
 
				+    // set data
			
 
				+    for (let i = 0; i < arrs.length; i++) {
			
 
				+        data.set(arrs[i], pos);
			
 
				+        pos += arrs[i].byteLength;
			
 
				+    }
			
 
				+
			
 
				+    return data;
			
 
				+}
			
 
				+
			
 
				+// let mp4Remux = new MP4Remux();
			
 
				+// mp4Remux.init();
			
 
				+
			
 
				+export default MP4Remux;
			
--- a/piglet/202107121640/static/camera/src/MediaSource.js
+++ b/piglet/202107121640/static/camera/src/MediaSource.js
@@ -0,0 +1,414 @@
 
				+
			
 
				+
			
 
				+function VideoMediaSource(element) {
			
 
				+    let videoElement = null;
			
 
				+    let codecInfo = null;
			
 
				+
			
 
				+    let mediaSource = null;
			
 
				+    let sourceBuffer = null;
			
 
				+
			
 
				+    let initSegmentData = null;
			
 
				+
			
 
				+    let ctrlDelayFlag = false;
			
 
				+    let delay = 4;
			
 
				+    const DELAY = 0.5;
			
 
				+    let waitingCount = 0;
			
 
				+    let time = 0;
			
 
				+
			
 
				+    let segmentWaitDecode = [];
			
 
				+
			
 
				+    let firstTimeStamp = null;
			
 
				+    let isFirstTimeStamp = false;
			
 
				+
			
 
				+
			
 
				+    let onDurationChangeCallback = null;
			
 
				+    let onCanplayCallback = null;
			
 
				+    let startPlay = false;
			
 
				+
			
 
				+    function constructor(element) {
			
 
				+        videoElement = element;
			
 
				+    }
			
 
				+
			
 
				+    constructor.prototype = {
			
 
				+        init() {
			
 
				+            videoElement.controls = false;
			
 
				+            videoElement.autoplay = 'autoplay';
			
 
				+            //videoElement.preload = "auto";
			
 
				+            videoElement.muted = true;
			
 
				+
			
 
				+            addVideoEventListener(videoElement);
			
 
				+
			
 
				+            appendInitSegment();
			
 
				+        },
			
 
				+
			
 
				+        setMediaSegment(mediaSegment) {
			
 
				+            appendNextMediaSegment(mediaSegment)
			
 
				+        },
			
 
				+
			
 
				+        setFirstTimeStamp(time) {
			
 
				+            if(!isFirstTimeStamp) {
			
 
				+                console.log('set firstTimeStamp:', time)
			
 
				+                firstTimeStamp = time;
			
 
				+                isFirstTimeStamp = true;
			
 
				+            }
			
 
				+        },
			
 
				+
			
 
				+        setDurationChangeCallBack(callback) {
			
 
				+            onDurationChangeCallback = callback;
			
 
				+        },
			
 
				+
			
 
				+        set CodecInfo(CodecInfo) {
			
 
				+            codecInfo = CodecInfo;
			
 
				+        },
			
 
				+
			
 
				+        get CodecInfo() {
			
 
				+            return codecInfo;
			
 
				+        },
			
 
				+
			
 
				+        set InitSegment(data) {
			
 
				+            initSegmentData = data;
			
 
				+        },
			
 
				+
			
 
				+        get InitSegment() {
			
 
				+            return initSegmentData;
			
 
				+        },
			
 
				+
			
 
				+        onCanplayCallback(callback) {
			
 
				+            onCanplayCallback = callback;
			
 
				+        },
			
 
				+
			
 
				+        close() {
			
 
				+            videoElement.pause();
			
 
				+            removeEventListener();
			
 
				+            mediaSource.removeSourceBuffer(sourceBuffer);
			
 
				+            mediaSource.endOfStream();
			
 
				+            sourceBuffer = null;
			
 
				+            mediaSource = null;
			
 
				+            videoElement = null;
			
 
				+        }
			
 
				+    }
			
 
				+
			
 
				+    return new constructor(element);
			
 
				+
			
 
				+    function appendInitSegment() {
			
 
				+        if(mediaSource == null || mediaSource.readyState === 'end') {
			
 
				+            mediaSource = new MediaSource();
			
 
				+            addMediaSourceEventListener(mediaSource);
			
 
				+            videoElement.src = window.URL.createObjectURL(mediaSource);
			
 
				+            //console.log('new MediaSource');
			
 
				+            return;
			
 
				+        }
			
 
				+
			
 
				+        //console.log('appendInitSegment start');
			
 
				+        if(mediaSource.sourceBuffers.length === 0) {
			
 
				+            mediaSource.duration = 0;
			
 
				+            let codecs = 'video/mp4;codecs="avc1.' + codecInfo + '"';
			
 
				+            if(!MediaSource.isTypeSupported(codecs)) {
			
 
				+                //console.log('要播放视频格式 video/mp4;codecs="avc1.64002a", video/mp4;codecs="avc1.64002a"，您还需要安装一个额外的微软组件，参见 https://support.mozilla.org/kb/fix-video-audio-problems-firefox-windows')
			
 
				+                console.log('not support ' + codecs)
			
 
				+                return;
			
 
				+            }
			
 
				+            sourceBuffer = mediaSource.addSourceBuffer(codecs);
			
 
				+            addSourceBufferEventListener(sourceBuffer);
			
 
				+        }
			
 
				+
			
 
				+        let initSegment = initSegmentData;
			
 
				+        if(initSegment == null) {
			
 
				+            mediaSource.endOfStream();
			
 
				+            console.log('no initSegmentData');
			
 
				+        }
			
 
				+        //console.log(sourceBuffer)
			
 
				+        sourceBuffer.appendBuffer(initSegment);
			
 
				+        //console.log(sourceBuffer)
			
 
				+        // saveAs(new File(initSegment, "test"));
			
 
				+        //  Savesegments.set(initSegment, 0);
			
 
				+        //  segmentsLength += initSegment.length;
			
 
				+        //  segmentsNum --;
			
 
				+        console.log('appendInitSegment end')
			
 
				+        checkDelay();
			
 
				+    }
			
 
				+
			
 
				+    function appendNextMediaSegment(mediaData) {
			
 
				+
			
 
				+
			
 
				+        if(sourceBuffer == null) {
			
 
				+            segmentWaitDecode.push(mediaData);
			
 
				+            return;
			
 
				+        }
			
 
				+        //console.log(mediaSource.readyState, mediaSource.readyState,sourceBuffer.updating)
			
 
				+        if(mediaSource.readyState === 'closed' || mediaSource.readyState === "ended") {
			
 
				+            console.log('mediaSource closed or ended')
			
 
				+            return;
			
 
				+        }
			
 
				+
			
 
				+        if(onDurationChangeCallback) {
			
 
				+            //90000为采样率，先写死
			
 
				+            let rtpTimestamp = parseInt((videoElement.currentTime.toFixed(2) * 90000).toFixed(0)) + firstTimeStamp + 3600;//
			
 
				+            //console.log('callback time: ', rtpTimestamp)
			
 
				+            //console.log('sourceBuffer: ', sourceBuffer.timestampOffset)
			
 
				+            onDurationChangeCallback(rtpTimestamp);
			
 
				+        }
			
 
				+
			
 
				+        //console.count('一帧');
			
 
				+
			
 
				+        //try {
			
 
				+        if(segmentWaitDecode.length) {
			
 
				+            segmentWaitDecode.push(mediaData);
			
 
				+            //console.log(segmentWaitDecode)
			
 
				+        }else {
			
 
				+            if(!sourceBuffer.updating) {
			
 
				+                sourceBuffer.appendBuffer(mediaData);
			
 
				+            } else {
			
 
				+                segmentWaitDecode.push(mediaData);
			
 
				+            }
			
 
				+        }
			
 
				+        //}catch (e){
			
 
				+        //    console.log('appendNextMediaSegment Error')
			
 
				+        //}
			
 
				+
			
 
				+        if(sourceBuffer && sourceBuffer.buffered && sourceBuffer.buffered.length &&  sourceBuffer.buffered.end(0) > DELAY) {
			
 
				+            if(!startPlay) {
			
 
				+                videoElement.play();
			
 
				+                console.warn('playbakrate: ', videoElement.playbackRate)
			
 
				+                ctrlDelayFlag = true;
			
 
				+            }
			
 
				+            startPlay = true;
			
 
				+        } else {
			
 
				+            if(!startPlay) {
			
 
				+                videoElement.pause();
			
 
				+            }
			
 
				+        }
			
 
				+        //console.log(sourceBuffer)
			
 
				+    }
			
 
				+
			
 
				+    /**
			
 
				+     * Video事件
			
 
				+     * @param videoElement video对象
			
 
				+     */
			
 
				+    function addVideoEventListener(videoElement) {
			
 
				+        videoElement.addEventListener('loadstart', onloadstart);
			
 
				+
			
 
				+        videoElement.addEventListener('waiting', onWaiting);
			
 
				+
			
 
				+        videoElement.addEventListener('durationchange', onDurationChange);
			
 
				+
			
 
				+        videoElement.addEventListener('timeupdate', timeupdate);
			
 
				+
			
 
				+        videoElement.addEventListener('canplay', oncanplay);
			
 
				+
			
 
				+        videoElement.addEventListener('canplaythrough', oncanplaythrough);
			
 
				+
			
 
				+        videoElement.addEventListener('error', onVideoError);
			
 
				+
			
 
				+        document.addEventListener('visibilitychange', onVisibilityChange);
			
 
				+    }
			
 
				+
			
 
				+    function onVisibilityChange(e) {
			
 
				+        if(document.visibilityState === 'visible') {
			
 
				+            ctrlDelayFlag = true;
			
 
				+            checkDelay();
			
 
				+            videoElement.play();
			
 
				+        } else {
			
 
				+            ctrlDelayFlag = false;
			
 
				+            videoElement.pause();
			
 
				+        }
			
 
				+        console.warn('visibilityState: ', document.visibilityState)
			
 
				+    }
			
 
				+
			
 
				+    function onloadstart() {
			
 
				+        console.log('loadstart');
			
 
				+    }
			
 
				+
			
 
				+    function onDurationChange() {
			
 
				+        //console.log('durationchange');
			
 
				+        if (mediaSource === null) {
			
 
				+            return;
			
 
				+        }
			
 
				+
			
 
				+        if(sourceBuffer && sourceBuffer.buffered && sourceBuffer.buffered.length > 0) {
			
 
				+            checkBuffer();
			
 
				+        }
			
 
				+        //console.log('currentTime：', videoElement.currentTime);
			
 
				+        // if(onDurationChangeCallback) {
			
 
				+        //     //90000为采样率，先写死
			
 
				+        //     let rtpTimestamp = videoElement.currentTime * 90000 + firstTimeStamp ;
			
 
				+        //     //console.log('callback time: ', rtpTimestamp)
			
 
				+        //     onDurationChangeCallback(rtpTimestamp);
			
 
				+        // }
			
 
				+
			
 
				+        //try {
			
 
				+
			
 
				+        //}catch(e) {
			
 
				+        //    console.log('sourceBuffer has been moved')
			
 
				+        //}
			
 
				+
			
 
				+    }
			
 
				+
			
 
				+    function checkDelay() {
			
 
				+        if(sourceBuffer && sourceBuffer.buffered && sourceBuffer.buffered.length > 0) {
			
 
				+            if(ctrlDelayFlag) {
			
 
				+                let startTime = sourceBuffer.buffered.start(0);
			
 
				+                let endTime = sourceBuffer.buffered.end(0);
			
 
				+                let diffTime = (videoElement.currentTime === 0 ? endTime - startTime: endTime - videoElement.currentTime).toFixed(2);
			
 
				+                if(diffTime >= delay + 0.5) {
			
 
				+                    if(sourceBuffer.updating) {
			
 
				+                        return;
			
 
				+                    }
			
 
				+                    let tempCurrntTime = endTime - delay;
			
 
				+                    console.log('跳秒前', videoElement.currentTime)
			
 
				+                    videoElement.currentTime = tempCurrntTime.toFixed(3);
			
 
				+                    console.log('跳秒后', videoElement.currentTime, sourceBuffer.buffered.end(0), videoElement.duration)
			
 
				+                    //ctrlDelayFlag = false;
			
 
				+                } else if((diffTime < DELAY + 0.2 ) && diffTime >= DELAY) {
			
 
				+                    //console.warn('playbackRate:', 1, diffTime)
			
 
				+                    videoElement.playbackRate = 1;
			
 
				+                }
			
 
				+                else if(diffTime < DELAY) {
			
 
				+                    //console.warn('playbackRate:', 0.9, diffTime)
			
 
				+                    videoElement.playbackRate = 0.9;
			
 
				+                }else {
			
 
				+                    //console.warn('playbackRate:', 1.1, diffTime)
			
 
				+                    videoElement.playbackRate = 1.1;
			
 
				+                }
			
 
				+            }
			
 
				+        }
			
 
				+        window.requestAnimationFrame(checkDelay);
			
 
				+    }
			
 
				+
			
 
				+    function timeupdate() {
			
 
				+        // console.log('******timeupdate******');
			
 
				+        // console.log(videoElement.currentTime);
			
 
				+        // console.log('******timeupdate end******')
			
 
				+    }
			
 
				+
			
 
				+    function oncanplay() {
			
 
				+        // if(isFirstTimeStamp && (firstTimeStamp == null)) {
			
 
				+        //     //firstTimeStamp =
			
 
				+        //     isFirstTimeStamp = false;
			
 
				+        // }
			
 
				+
			
 
				+        onCanplayCallback && onCanplayCallback(videoElement);
			
 
				+        console.log('canplay');
			
 
				+    }
			
 
				+
			
 
				+    function oncanplaythrough() {
			
 
				+        if(document.visibilityState === 'visible' && startPlay){ctrlDelayFlag = true};
			
 
				+        // console.log('canplaythrough');
			
 
				+    }
			
 
				+
			
 
				+    function onVideoError() {
			
 
				+        console.error('error');
			
 
				+        //console.log(e)
			
 
				+        console.error(videoElement.currentTime);
			
 
				+        console.error("Error " + videoElement.error.code + "; details: " + videoElement.error.message);
			
 
				+    }
			
 
				+
			
 
				+
			
 
				+    /**
			
 
				+     * MediaSource事件
			
 
				+     * @param mediaSource
			
 
				+     */
			
 
				+    function addMediaSourceEventListener(mediaSource) {
			
 
				+        mediaSource.addEventListener('sourceopen', onSourceOpen);
			
 
				+
			
 
				+        mediaSource.addEventListener('error', onMediaSourceError);
			
 
				+    }
			
 
				+
			
 
				+    function onSourceOpen() {
			
 
				+        console.log('OnsourceOpen');
			
 
				+        appendInitSegment(); //此处重新调用一次，是为了建立sourceBuffer
			
 
				+    }
			
 
				+
			
 
				+    function onMediaSourceError() {
			
 
				+        console.log('mediaSource error');
			
 
				+        console.log(videoElement.currentTime)
			
 
				+    }
			
 
				+
			
 
				+    /**
			
 
				+     * sourceBuffer事件
			
 
				+     */
			
 
				+    function addSourceBufferEventListener(sourceBuffer) {
			
 
				+        sourceBuffer.addEventListener('error', onSourceBufferError);
			
 
				+
			
 
				+        sourceBuffer.addEventListener('update', onUpdate);
			
 
				+    }
			
 
				+
			
 
				+    function onSourceBufferError() {
			
 
				+        console.log('sourceBuffer Error');
			
 
				+        console.log(videoElement.currentTime)
			
 
				+    }
			
 
				+
			
 
				+    function onUpdate() {
			
 
				+        //console.log('sourceBuffer update');
			
 
				+        if(segmentWaitDecode.length > 0) {
			
 
				+            if(!sourceBuffer.updating) {
			
 
				+                sourceBuffer.appendBuffer(segmentWaitDecode[0]);
			
 
				+
			
 
				+                //console.log('segmentWaitDecode:  ' + segmentWaitDecode.length)
			
 
				+                segmentWaitDecode.shift();
			
 
				+            }
			
 
				+        }
			
 
				+        //console.log(e)
			
 
				+    }
			
 
				+
			
 
				+    function checkBuffer() {
			
 
				+        let minute = 60;
			
 
				+        let bufferTime = 30;
			
 
				+        let startTime = sourceBuffer.buffered.start(0);
			
 
				+        let endTime = sourceBuffer.buffered.end(0);
			
 
				+        //console.log(endTime- videoElement.currentTime)
			
 
				+        if (!sourceBuffer.updating && (endTime - startTime > minute)) {
			
 
				+            sourceBuffer.remove(startTime, endTime - bufferTime);
			
 
				+            videoElement.play();
			
 
				+            console.log('remove buffer: ', startTime, ' - ', (endTime - bufferTime))
			
 
				+        }else if(sourceBuffer.updating && (endTime - startTime > minute)) {
			
 
				+            console.log('clear buffer failed!')
			
 
				+        }
			
 
				+    }
			
 
				+
			
 
				+    function onWaiting() {
			
 
				+        // console.log('waiting....');
			
 
				+        ctrlDelayFlag = false;
			
 
				+        // if(delay < 0.7) {
			
 
				+        //     if(waitingCount === 0) {
			
 
				+        //         time = Date.now();
			
 
				+        //         waitingCount++;
			
 
				+        //     }else {
			
 
				+        //         if((Date.now() - time) <= 5000) {
			
 
				+        //             waitingCount ++;
			
 
				+        //             if(waitingCount >= 5) {
			
 
				+        //                 delay += 0.1;
			
 
				+        //                 console.log('delay: ', delay);
			
 
				+        //                 time = Date.now();
			
 
				+        //                 waitingCount = 0;
			
 
				+        //             }
			
 
				+        //         } else {
			
 
				+        //             waitingCount = 1;
			
 
				+        //             time = Date.now();
			
 
				+        //         }
			
 
				+        //     }
			
 
				+        // }
			
 
				+    }
			
 
				+
			
 
				+    function removeEventListener() {
			
 
				+        document.removeEventListener('visibilitychange', onVisibilityChange);
			
 
				+        videoElement.removeEventListener('loadstart', onloadstart);
			
 
				+        videoElement.removeEventListener('waiting', onWaiting);
			
 
				+        videoElement.removeEventListener('durationchange', onDurationChange);
			
 
				+        videoElement.removeEventListener('timeupdate', timeupdate);
			
 
				+        videoElement.removeEventListener('canplay', oncanplay);
			
 
				+        videoElement.removeEventListener('canplaythrough', oncanplaythrough);
			
 
				+        videoElement.removeEventListener('error', onVideoError);
			
 
				+
			
 
				+        mediaSource.removeEventListener('sourceopen', onSourceOpen);
			
 
				+        mediaSource.removeEventListener('error', onMediaSourceError);
			
 
				+
			
 
				+        sourceBuffer.removeEventListener('error', onSourceBufferError);
			
 
				+        sourceBuffer.removeEventListener('update', onUpdate);
			
 
				+    }
			
 
				+
			
 
				+}
			
 
				+
			
 
				+
			
 
				+
			
 
				+export default VideoMediaSource;
			
--- a/piglet/202107121640/static/camera/src/ROIDrawer.js
+++ b/piglet/202107121640/static/camera/src/ROIDrawer.js
@@ -0,0 +1,630 @@
 
				+import Drawer from './drawer.js';
			
 
				+
			
 
				+class ROIDrawer extends Drawer {
			
 
				+    constructor(props) {
			
 
				+        super(props);
			
 
				+        this.currentState = 'end';
			
 
				+        this.points = [];
			
 
				+        this.polygons = [];
			
 
				+        this.MAX_POLYGON = 1;
			
 
				+        this.onDrawROIFinishedCallback = null;
			
 
				+    }
			
 
				+
			
 
				+    _init() {
			
 
				+        this.context.lineWidth = 2;
			
 
				+        this.context.font = 'bold 20px Arial';
			
 
				+
			
 
				+        this.canvas.addEventListener('click', this._onClick.bind(this));
			
 
				+        this.canvas.addEventListener('contextmenu', this._oncontextmenu.bind(this));
			
 
				+        this.canvas.addEventListener('mousemove', this._onmousemove.bind(this));
			
 
				+    }
			
 
				+
			
 
				+    _onClick(e) {
			
 
				+        switch (this.currentState) {
			
 
				+            case 'begin':
			
 
				+                this.points.push(getMousePos(this.canvas, e));
			
 
				+                this.currentState = 'firstPoint';
			
 
				+                break;
			
 
				+            case 'firstPoint': // 防止初始点点两次
			
 
				+                break;
			
 
				+            case 'move':
			
 
				+                this.currentState = 'points';
			
 
				+                break;
			
 
				+            case 'points':
			
 
				+                let currentPoint = getMousePos(this.canvas, e);
			
 
				+                if ((currentPoint.x === this.points[this.points.length - 1].x) && (currentPoint.y === this.points[this.points.length - 1].y)) {
			
 
				+                    return;
			
 
				+                }
			
 
				+                this.points.push(currentPoint);
			
 
				+                if (checkPolygon(this.points)) {
			
 
				+                    this.points.pop();
			
 
				+                }
			
 
				+                //console.log(this.points);
			
 
				+                break;
			
 
				+            case 'end':
			
 
				+                //console.log(this.points)
			
 
				+                break;
			
 
				+            default:
			
 
				+                console.log('unknown state: ', this.currentState);
			
 
				+                break;
			
 
				+        }
			
 
				+        // this._drawPolygons(this.points, true);
			
 
				+    }
			
 
				+
			
 
				+    _oncontextmenu(e) {
			
 
				+        e.preventDefault();
			
 
				+        if(this.currentState === 'end') { //防止点击右键启动绘制
			
 
				+            return ;
			
 
				+        }
			
 
				+        if (this.points.length <= 2) {
			
 
				+            this._resetPoints();
			
 
				+        } else {
			
 
				+            if ((this.points[0].x !== this.points[this.points.length - 1].x) || (this.points[0].y !== this.points[this.points.length - 1].y)) {
			
 
				+                this.points.push(this.points[0]);
			
 
				+            }
			
 
				+            if (checkPolygon(this.points)) {
			
 
				+                this.points.pop();
			
 
				+            } else {
			
 
				+                this.currentState = 'end';
			
 
				+                this.polygons.push([...this.points]);
			
 
				+                if(this.polygons.length < this.MAX_POLYGON) {
			
 
				+                    this._resetPoints();
			
 
				+                } else {
			
 
				+                    this.onDrawROIFinishedCallback && this.onDrawROIFinishedCallback();
			
 
				+                    this._drawPolygons([]);
			
 
				+                }
			
 
				+            }
			
 
				+        }
			
 
				+    }
			
 
				+
			
 
				+    _onmousemove(e) {
			
 
				+        let pos = getMousePos(this.canvas, e);
			
 
				+        //console.log('mousemove');
			
 
				+        if (e.button === 0) {
			
 
				+            if (this.currentState === 'firstPoint') {
			
 
				+                this.currentState = 'move';
			
 
				+                this.points.push(pos);
			
 
				+            } else if (this.currentState === 'move') {
			
 
				+                this.points.pop();
			
 
				+                this.points.push(pos);
			
 
				+            }
			
 
				+            if (this.currentState !== 'end') {
			
 
				+                this.points.push(pos);
			
 
				+                this._drawPolygons(this.points);
			
 
				+                this.points.pop();
			
 
				+            } else {
			
 
				+                //this._drawPolygons(this.points);
			
 
				+            }
			
 
				+            if(this.currentState === 'begin') {
			
 
				+                this._drawText('区域' + (this.polygons.length + 1), pos.x, pos.y)
			
 
				+            }
			
 
				+        }
			
 
				+    }
			
 
				+
			
 
				+    getROIData() {
			
 
				+        if(this.currentState !== 'end') { //非完成状态
			
 
				+            return null;
			
 
				+        }
			
 
				+        let polygons = [];
			
 
				+        this.polygons.map((points, k) =>{
			
 
				+            let data = points.slice(0, points.length - 1);
			
 
				+            data.map((point, k) => {
			
 
				+                data[k] = this._to8191Coordinate(point, this.canvas);
			
 
				+            });
			
 
				+            polygons.push([...data]);
			
 
				+        });
			
 
				+
			
 
				+        return polygons;
			
 
				+    }
			
 
				+
			
 
				+    setROI(polygons) {
			
 
				+        if(!polygons) {
			
 
				+            return;
			
 
				+        }
			
 
				+        let data = [];
			
 
				+        this.polygons = [];
			
 
				+        polygons.map((points, k) => {
			
 
				+            points.map((point, k) => {
			
 
				+                let result = this._toRealCoordinate(point.x, point.y);
			
 
				+                data[k] = {x: result[0], y: result[1]};
			
 
				+            });
			
 
				+            if(data.length) {
			
 
				+                data[data.length] = data[0];
			
 
				+            }
			
 
				+            this.polygons.push([...data]);
			
 
				+            data = [];
			
 
				+        });
			
 
				+        this.currentState = 'end';
			
 
				+        this.points = [];
			
 
				+        this._drawPolygons(this.points);
			
 
				+    }
			
 
				+
			
 
				+    redrawROI() {
			
 
				+        this._drawPolygons(this.points);
			
 
				+    }
			
 
				+
			
 
				+    reset() {
			
 
				+        this.currentState = 'begin';
			
 
				+        this.polygons = [];
			
 
				+        this.points.length = 0;
			
 
				+        this._drawPolygons(this.points);
			
 
				+    }
			
 
				+
			
 
				+    setROIFinishedCallback(callback) {
			
 
				+        this.onDrawROIFinishedCallback = callback;
			
 
				+    }
			
 
				+
			
 
				+    setPolygonNum(num) {
			
 
				+        this.MAX_POLYGON = num;
			
 
				+    }
			
 
				+
			
 
				+    terminate() {
			
 
				+        this.clearCanvas();
			
 
				+        this.canvas.width = 0;
			
 
				+        this.canvas.height = 0;
			
 
				+        this.currentState = 'end';
			
 
				+        this.points.length = 0;
			
 
				+        this.canvas.removeEventListener('click', this._onClick);
			
 
				+        this.canvas.removeEventListener('contextmenu', this._oncontextmenu);
			
 
				+        this.canvas.removeEventListener('mousemove', this._onmousemove);
			
 
				+    }
			
 
				+
			
 
				+    _drawPolygons(points) {
			
 
				+        this.context.clearRect(0, 0, this.canvas.width, this.canvas.height);
			
 
				+        this.polygons.map((points, k)=> {
			
 
				+            this._drawPolygon(points);
			
 
				+        });
			
 
				+        this._drawPolygon(points);
			
 
				+    }
			
 
				+
			
 
				+    _drawPolygon(points) {
			
 
				+        if (!points.length) {
			
 
				+            return;
			
 
				+        }
			
 
				+        const end = this.currentState === 'end';
			
 
				+        //console.log(points)
			
 
				+        this.context.strokeStyle = end ? '#0000ff' : "#ffff00";
			
 
				+
			
 
				+        this.context.beginPath();
			
 
				+        this.context.moveTo(points[0].x, points[0].y);
			
 
				+        for (let i = 1; i < points.length; i++) {
			
 
				+            this.context.lineTo(points[i].x, points[i].y);
			
 
				+        }
			
 
				+        if (end) {
			
 
				+            // draw is done, fill polygon with a color
			
 
				+            this.context.fillStyle = "rgba(255, 0, 0, 0.2)";
			
 
				+            this.context.fill();
			
 
				+        } else {
			
 
				+            this.context.stroke();
			
 
				+        }
			
 
				+        this.context.closePath();
			
 
				+
			
 
				+        this.polygons.map((points, k)=> {
			
 
				+            this._drawText('区域' + (k + 1), points[0].x - 20, points[0].y - 10);
			
 
				+        });
			
 
				+    }
			
 
				+
			
 
				+    _resetPoints() {
			
 
				+        this.currentState = 'begin';
			
 
				+        this.points.length = 0;
			
 
				+        this._drawPolygons(this.points);
			
 
				+    }
			
 
				+
			
 
				+    _drawText(text, x, y) {
			
 
				+        this.context.beginPath();
			
 
				+        this.context.fillStyle = "rgba(255, 255, 0, 1)";
			
 
				+        this.context.fillText(text, x, y);
			
 
				+        this.context.closePath();
			
 
				+    }
			
 
				+
			
 
				+}
			
 
				+
			
 
				+class StandingDrawer extends Drawer {
			
 
				+    constructor(props) {
			
 
				+        super(props);
			
 
				+        this.currentState = 'end';
			
 
				+        this.points = [];
			
 
				+        this.onDrawROIFinishedCallback = null;
			
 
				+    }
			
 
				+
			
 
				+    _init() {
			
 
				+        this.context.lineWidth = 2;
			
 
				+        this.context.font = 'bold 20px Arial';
			
 
				+
			
 
				+        this.canvas.addEventListener('click', this._onClick.bind(this));
			
 
				+        this.canvas.addEventListener('contextmenu', this._oncontextmenu.bind(this));
			
 
				+        this.canvas.addEventListener('mousemove', this._onmousemove.bind(this));
			
 
				+    }
			
 
				+
			
 
				+    _onClick(e) {
			
 
				+        let pos = getMousePos(this.canvas, e);
			
 
				+        switch (this.currentState) {
			
 
				+            case 'begin':
			
 
				+                this.points.push(pos);
			
 
				+                this.currentState = 'firstPoint';
			
 
				+                break;
			
 
				+            case 'firstPoint': // 防止初始点点两次
			
 
				+                break;
			
 
				+            case 'move':
			
 
				+                this.currentState = 'points';
			
 
				+                break;
			
 
				+            case 'points':
			
 
				+                if (((pos.x === this.points[this.points.length - 1].x) && (pos.y === this.points[this.points.length - 1].y))
			
 
				+                    || this.points.length > 6) {
			
 
				+                    return;
			
 
				+                }
			
 
				+                this.points.push(pos);
			
 
				+                let points = this.points.length > 4 ? this.points.slice(0, 4) : this.points;
			
 
				+                if(checkPolygon(points)) {
			
 
				+                    this.points.pop();
			
 
				+                }
			
 
				+                if(this.points.length === 6) {
			
 
				+                    this.currentState = 'end';
			
 
				+                    this.onDrawROIFinishedCallback && this.onDrawROIFinishedCallback();
			
 
				+                }
			
 
				+                this._drawArea(this.points);
			
 
				+                break;
			
 
				+            case 'end':
			
 
				+                break;
			
 
				+            default:
			
 
				+                console.log('unknown state: ', this.currentState);
			
 
				+                break;
			
 
				+        }
			
 
				+    }
			
 
				+
			
 
				+    _oncontextmenu(e) {
			
 
				+        e.preventDefault();
			
 
				+    }
			
 
				+
			
 
				+    _onmousemove(e) {
			
 
				+        let pos = getMousePos(this.canvas, e);
			
 
				+        if (e.button === 0) {
			
 
				+            if (this.currentState === 'firstPoint') {
			
 
				+                this.currentState = 'move';
			
 
				+                this.points.push(pos);
			
 
				+            } else if (this.currentState === 'move') {
			
 
				+                this.points.pop();
			
 
				+                this.points.push(pos);
			
 
				+            }
			
 
				+            if (this.currentState !== 'end') {
			
 
				+                this.points.push(pos);
			
 
				+                this._drawArea(this.points);
			
 
				+                this.points.pop();
			
 
				+            } else {
			
 
				+            }
			
 
				+            // if(this.currentState === 'begin') {
			
 
				+            //     this._drawText('区域' + (this.polygons.length + 1), pos.x, pos.y)
			
 
				+            // }
			
 
				+        }
			
 
				+    }
			
 
				+
			
 
				+    _drawArea(points) {
			
 
				+        this.context.clearRect(0, 0, this.canvas.width, this.canvas.height);
			
 
				+        let polygon = points.length > 4 ? points.slice(0, 4) : points;
			
 
				+        this._drawPolygon(polygon);
			
 
				+        let line = points.length > 4 ? points.slice(4) : [];
			
 
				+        this._drawLine(line);
			
 
				+    }
			
 
				+
			
 
				+    _drawPolygon(points) {
			
 
				+        if(!points.length) {
			
 
				+            return;
			
 
				+        }
			
 
				+        this.context.strokeStyle = '#00ff00';
			
 
				+        this.context.beginPath();
			
 
				+        this.context.moveTo(points[0].x, points[0].y);
			
 
				+        for (let i = 1; i < points.length; i++) {
			
 
				+            this.context.lineTo(points[i].x, points[i].y);
			
 
				+        }
			
 
				+        this.points.length >= 4 && this.context.lineTo(points[0].x, points[0].y);
			
 
				+        this.context.stroke();
			
 
				+        this.context.closePath();
			
 
				+    }
			
 
				+
			
 
				+    _drawLine(points) {
			
 
				+        if(points.length !== 2) {
			
 
				+            return;
			
 
				+        }
			
 
				+        this.context.strokeStyle = '#0000ff';
			
 
				+        this.context.beginPath();
			
 
				+        this.context.moveTo(points[0].x, points[0].y);
			
 
				+        this.context.lineTo(points[1].x, points[1].y);
			
 
				+        this.context.stroke();
			
 
				+        this.context.closePath();
			
 
				+    }
			
 
				+
			
 
				+    getROIData() {
			
 
				+        if(this.currentState !== 'end') { //非完成状态
			
 
				+            return null;
			
 
				+        }
			
 
				+        let points = [];
			
 
				+        this.points.map((point, k) => {
			
 
				+            points.push(this._to8191Coordinate(point, this.canvas));
			
 
				+        });
			
 
				+        return points;
			
 
				+    }
			
 
				+
			
 
				+    setROI(points) {
			
 
				+        if(!points) {
			
 
				+            return;
			
 
				+        }
			
 
				+        let data = [];
			
 
				+        points.map((point, k) => {
			
 
				+            let result = this._toRealCoordinate(point.x, point.y);
			
 
				+            data[k] = {x: result[0], y: result[1]};
			
 
				+        });
			
 
				+        this.points = [...data];
			
 
				+        this._drawArea(data);
			
 
				+        this.currentState = 'end';
			
 
				+    }
			
 
				+
			
 
				+    redrawROI() {
			
 
				+        this._drawArea(this.points);
			
 
				+    }
			
 
				+
			
 
				+    reset() {
			
 
				+        this.currentState = 'begin';
			
 
				+        this.points.length = 0;
			
 
				+        this._drawArea(this.points);
			
 
				+    }
			
 
				+
			
 
				+    setROIFinishedCallback(callback) {
			
 
				+        this.onDrawROIFinishedCallback = callback;
			
 
				+    }
			
 
				+
			
 
				+    terminate() {
			
 
				+        this.clearCanvas();
			
 
				+        this.canvas.width = 0;
			
 
				+        this.canvas.height = 0;
			
 
				+        this.currentState = 'end';
			
 
				+        this.points.length = 0;
			
 
				+        this.canvas.removeEventListener('click', this._onClick);
			
 
				+        this.canvas.removeEventListener('contextmenu', this._oncontextmenu);
			
 
				+        this.canvas.removeEventListener('mousemove', this._onmousemove);
			
 
				+    }
			
 
				+
			
 
				+}
			
 
				+
			
 
				+class SpeedLine extends Drawer {
			
 
				+    constructor(canvas) {
			
 
				+        super(canvas);
			
 
				+        this.currentState = 'end';
			
 
				+        this.MAXLINE = 2;
			
 
				+        this.points = [];
			
 
				+        this.onDrawROIFinishedCallback = null;
			
 
				+    }
			
 
				+
			
 
				+    _init() {
			
 
				+        this.canvas.addEventListener('click', this._onClick.bind(this));
			
 
				+        this.canvas.addEventListener('contextmenu', this._oncontextmenu.bind(this));
			
 
				+        this.canvas.addEventListener('mousemove', this._onmousemove.bind(this));
			
 
				+    }
			
 
				+
			
 
				+    _onClick(e) {
			
 
				+        if(this.points.length === this.MAXLINE * 2) {
			
 
				+            return;
			
 
				+        }
			
 
				+        switch (this.currentState) {
			
 
				+            case 'begin':
			
 
				+                this.points.push(getMousePos(this.canvas, e));
			
 
				+                this.currentState = 'firstPoint';
			
 
				+                break;
			
 
				+            case 'firstPoint': // 防止初始点点两次
			
 
				+                break;
			
 
				+            case 'move':
			
 
				+                this.currentState = 'points';
			
 
				+                break;
			
 
				+            case 'points':
			
 
				+                let currentPoint = getMousePos(this.canvas, e);
			
 
				+                if ((currentPoint.x === this.points[this.points.length - 1].x) && (currentPoint.y === this.points[this.points.length - 1].y)) {
			
 
				+                    return;
			
 
				+                }
			
 
				+                this.points.push(currentPoint);
			
 
				+                if(this.points.length === this.MAXLINE * 2) {
			
 
				+                    if (this._checkLine(this.points)) {
			
 
				+                        this.points.pop();
			
 
				+                    } else {
			
 
				+                        this.currentState = 'end';
			
 
				+                        this._drawLines(this.points);
			
 
				+                        this.onDrawROIFinishedCallback && this.onDrawROIFinishedCallback();
			
 
				+                    }
			
 
				+                }
			
 
				+                break;
			
 
				+            case 'end':
			
 
				+                break;
			
 
				+            default:
			
 
				+                console.log('unknown state: ', this.currentState);
			
 
				+                break;
			
 
				+        }
			
 
				+    }
			
 
				+
			
 
				+    _onmousemove(e) {
			
 
				+        let pos = getMousePos(this.canvas, e);
			
 
				+        console.log(e);
			
 
				+        if (e.button === 0) {
			
 
				+            if (this.currentState === 'firstPoint') {
			
 
				+                this.currentState = 'move';
			
 
				+                this.points.push(pos);
			
 
				+            } else if (this.currentState === 'move') {
			
 
				+                this.points.pop();
			
 
				+                this.points.push(pos);
			
 
				+            }
			
 
				+            if (this.currentState !== 'end' && this.currentState !== 'begin') {
			
 
				+                this.points.push(pos);
			
 
				+                this._drawLines(this.points);
			
 
				+                this.points.pop();
			
 
				+            }
			
 
				+        }
			
 
				+    }
			
 
				+
			
 
				+    _oncontextmenu(e) {
			
 
				+        e.preventDefault();
			
 
				+    }
			
 
				+    /**
			
 
				+     *
			
 
				+     * @param points [] x1,y1,x2,y2...
			
 
				+     * @private
			
 
				+     */
			
 
				+    _checkLine(points) {
			
 
				+        for (let i = 0; i < points.length - 3; i = i + 2) {
			
 
				+            for (let j = i + 2; j < points.length - 1; j = j + 2) {
			
 
				+                let result = segmentsIntr(points[i], points[i + 1], points[j], points[j + 1]);
			
 
				+                if (result) {
			
 
				+                    console.log('intersect:');
			
 
				+                    console.log(result)
			
 
				+                    return result;
			
 
				+                }
			
 
				+            }
			
 
				+        }
			
 
				+        return false;
			
 
				+    }
			
 
				+
			
 
				+    _drawLines(points) {
			
 
				+        this.context.clearRect(0, 0, this.canvas.width, this.canvas.height);
			
 
				+        if (!points.length) {
			
 
				+            return;
			
 
				+        }
			
 
				+        const end = this.currentState === 'end';
			
 
				+        this.context.strokeStyle = end ? '#00ff00' : "#ffff00";
			
 
				+        this.context.beginPath();
			
 
				+        for (let i = 0; i < points.length - 1; i = i + 2) {
			
 
				+            this.context.moveTo(points[i].x, points[i].y);
			
 
				+            this.context.lineTo(points[i + 1].x, points[i + 1].y);
			
 
				+        }
			
 
				+        this.context.stroke();
			
 
				+        this.context.closePath();
			
 
				+    }
			
 
				+
			
 
				+    getROIData() {
			
 
				+        if(this.currentState !== 'end') { //非完成状态
			
 
				+            return null;
			
 
				+        }
			
 
				+        let data = this.points;
			
 
				+        data.map((point, k) => {
			
 
				+            data[k] = this._to8191Coordinate(point, this.canvas);
			
 
				+        });
			
 
				+        return data;
			
 
				+    }
			
 
				+
			
 
				+    setROI(data) {
			
 
				+        data.map((point, k) => {
			
 
				+            let result = this._toRealCoordinate(point.x, point.y);
			
 
				+            data[k] = {x: result[0], y: result[1]};
			
 
				+        });
			
 
				+
			
 
				+        this.currentState = 'end';
			
 
				+        this.points = data;
			
 
				+        this._drawLines(this.points);
			
 
				+    }
			
 
				+
			
 
				+    redrawROI() {
			
 
				+        this._drawLines(this.points);
			
 
				+    }
			
 
				+
			
 
				+    reset() {
			
 
				+        this.currentState = 'begin';
			
 
				+        this.points.length = 0;
			
 
				+        console.log(this.points)
			
 
				+        this._drawLines(this.points);
			
 
				+    }
			
 
				+
			
 
				+    setROIFinishedCallback(callback) {
			
 
				+        this.onDrawROIFinishedCallback = callback;
			
 
				+    }
			
 
				+
			
 
				+    setLineNum(num) {
			
 
				+        this.MAXLINE = num;
			
 
				+    }
			
 
				+
			
 
				+    terminate() {
			
 
				+        this.clearCanvas();
			
 
				+        this.canvas.width = 0;
			
 
				+        this.canvas.height = 0;
			
 
				+        this.currentState = 'end';
			
 
				+        this.points.length = 0;
			
 
				+        this.canvas.removeEventListener('click', this._onClick);
			
 
				+        this.canvas.removeEventListener('contextmenu', this._oncontextmenu);
			
 
				+        this.canvas.removeEventListener('mousemove', this._onmousemove);
			
 
				+    }
			
 
				+}
			
 
				+
			
 
				+class BlankROIDrawer extends Drawer {
			
 
				+    constructor(canvas) {
			
 
				+        super(canvas);
			
 
				+    }
			
 
				+    getROIData() {
			
 
				+
			
 
				+    }
			
 
				+
			
 
				+    setROI() {
			
 
				+
			
 
				+    }
			
 
				+
			
 
				+    redrawROI() {
			
 
				+
			
 
				+    }
			
 
				+
			
 
				+    reset() {
			
 
				+
			
 
				+    }
			
 
				+
			
 
				+    terminate() {
			
 
				+
			
 
				+    }
			
 
				+}
			
 
				+
			
 
				+function getMousePos(canvas, event) {
			
 
				+    var rect = canvas.getBoundingClientRect();
			
 
				+    var x = event.clientX - rect.left * (canvas.width / rect.width);
			
 
				+    var y = event.clientY - rect.top * (canvas.height / rect.height);
			
 
				+    //console.log("x:"+x+",y:"+y);
			
 
				+    return {x: x, y: y};
			
 
				+}
			
 
				+
			
 
				+function checkPolygon(points) {
			
 
				+    for (let i = 0, length = points.length - 1; i < length; i++) {
			
 
				+        for (let j = i + 1, len = points.length - 1; j < len; j++) {
			
 
				+            let result = segmentsIntr(points[i], points[i + 1], points[j], points[j + 1]);
			
 
				+            if (result) {
			
 
				+                console.log('intersect:');
			
 
				+                console.log(result)
			
 
				+                return result;
			
 
				+            }
			
 
				+        }
			
 
				+    }
			
 
				+    return false;
			
 
				+}
			
 
				+
			
 
				+
			
 
				+function segmentsIntr(a, b, c, d) {
			
 
				+
			
 
				+    // 三角形abc 面积的2倍
			
 
				+    var area_abc = (a.x - c.x) * (b.y - c.y) - (a.y - c.y) * (b.x - c.x);
			
 
				+
			
 
				+    // 三角形abd 面积的2倍
			
 
				+    var area_abd = (a.x - d.x) * (b.y - d.y) - (a.y - d.y) * (b.x - d.x);
			
 
				+
			
 
				+    // 面积符号相同则两点在线段同侧,不相交 (对点在线段上的情况,本例当作不相交处理);
			
 
				+    if (area_abc * area_abd >= 0) {
			
 
				+        return false;
			
 
				+    }
			
 
				+
			
 
				+    // 三角形cda 面积的2倍
			
 
				+    var area_cda = (c.x - a.x) * (d.y - a.y) - (c.y - a.y) * (d.x - a.x);
			
 
				+    // 三角形cdb 面积的2倍
			
 
				+    // 注意: 这里有一个小优化.不需要再用公式计算面积,而是通过已知的三个面积加减得出.
			
 
				+    var area_cdb = area_cda + area_abc - area_abd;
			
 
				+    if (area_cda * area_cdb >= 0) {
			
 
				+        return false;
			
 
				+    }
			
 
				+
			
 
				+    //计算交点坐标
			
 
				+    var t = area_cda / (area_abd - area_abc);
			
 
				+    var dx = t * (b.x - a.x),
			
 
				+        dy = t * (b.y - a.y);
			
 
				+    return {x: a.x + dx, y: a.y + dy};
			
 
				+
			
 
				+}
			
 
				+
			
 
				+
			
 
				+export  {ROIDrawer, StandingDrawer, SpeedLine, BlankROIDrawer};
			
--- a/piglet/202107121640/static/camera/src/drawer.js
+++ b/piglet/202107121640/static/camera/src/drawer.js
@@ -0,0 +1,98 @@
 
				+class Drawer {
			
 
				+    constructor(canvas) {
			
 
				+        this.canvas = canvas;
			
 
				+        this.context = canvas.getContext('2d');
			
 
				+        this._init();
			
 
				+    }
			
 
				+
			
 
				+    _init() {
			
 
				+
			
 
				+    }
			
 
				+
			
 
				+    cover(video) {
			
 
				+        //console.log('cover')
			
 
				+        let offsetLeft = 0, //canvas和video同级时
			
 
				+            offsetTop = 0,
			
 
				+            //offsetLeft = getOffsetRect(video).left, //canvas为body的子元素时，根据DOM文档定位
			
 
				+            //offsetTop = getOffsetRect(video).top,
			
 
				+            videoHeight = video.videoHeight,
			
 
				+            videoWidth = video.videoWidth,
			
 
				+            width = video.getBoundingClientRect().width || videoWidth,
			
 
				+            height = video.getBoundingClientRect().height || videoHeight;
			
 
				+        this.canvas.style.position = 'absolute';
			
 
				+
			
 
				+        //this.canvas.style.top = offsetTop +'px';
			
 
				+
			
 
				+        //this.canvas.style.height = height +'px';
			
 
				+
			
 
				+        let tempHeight = width * videoHeight / videoWidth;
			
 
				+        if (tempHeight > height) { // 如果缩放后的高度大于标签宽度，则按照height缩放width
			
 
				+            this.canvas.height = height;
			
 
				+            this.canvas.width = videoWidth / videoHeight * height;
			
 
				+            this.canvas.style.height = height + 'px';
			
 
				+            this.canvas.style.width = videoWidth / videoHeight * height + 'px';
			
 
				+            this.canvas.style.top = offsetTop + 'px';
			
 
				+            this.canvas.style.left = offsetLeft + (width - videoWidth / videoHeight * height) / 2 + 'px';
			
 
				+        } else {
			
 
				+            this.canvas.width = width;
			
 
				+            this.canvas.height = width * videoHeight / videoWidth;
			
 
				+            this.canvas.style.width = width +'px';
			
 
				+            this.canvas.style.height = width * videoHeight / videoWidth +'px';
			
 
				+            this.canvas.style.left = offsetLeft + 'px';
			
 
				+            this.canvas.style.top = offsetTop + (height - width * videoHeight / videoWidth) / 2 + 'px';
			
 
				+        }
			
 
				+    }
			
 
				+
			
 
				+    clearCanvas() {
			
 
				+        this.context.clearRect(0, 0, this.canvas.width, this.canvas.height);
			
 
				+    }
			
 
				+
			
 
				+    terminate() {
			
 
				+        this.clearCanvas();
			
 
				+        this.canvas.width = 0;
			
 
				+        this.canvas.height = 0;
			
 
				+    }
			
 
				+
			
 
				+    /**
			
 
				+     * 8191坐标系转真实坐标
			
 
				+     * @param x 8191坐标系 x坐标
			
 
				+     * @param y 8191坐标系 y坐标
			
 
				+     * @returns {number[]} 数组
			
 
				+     * @private
			
 
				+     */
			
 
				+    _toRealCoordinate(x, y) {
			
 
				+        return [parseInt(x * this.canvas.width / 8191), parseInt(y * this.canvas.height / 8191)];
			
 
				+    }
			
 
				+
			
 
				+    /**
			
 
				+     * 真实坐标系转8191坐标系
			
 
				+     * @param point {x: x, y: y}
			
 
				+     * @param canvas 坐标系所在的画布
			
 
				+     * return {x: x, y: y}
			
 
				+     */
			
 
				+     _to8191Coordinate(point, canvas) {
			
 
				+        return {x: parseInt(point.x * 8191 / canvas.width), y: parseInt(point.y * 8191 / canvas.height)}
			
 
				+    }
			
 
				+}
			
 
				+
			
 
				+
			
 
				+/**
			
 
				+ * 获取元素相对于dom文档的坐标
			
 
				+ * @param elem
			
 
				+ * @returns {{top: number, left: number}}
			
 
				+ */
			
 
				+function getOffsetRect(elem) {
			
 
				+    let box = elem.getBoundingClientRect();
			
 
				+    let body = document.body;
			
 
				+    let docElem = document.documentElement;
			
 
				+    let scrollTop = window.pageYOffset || docElem.scrollTop || body.scrollTop;
			
 
				+    let scrollLeft = window.pageXOffset || docElem.scrollLeft || body.scrollLeft;
			
 
				+    let clientTop = docElem.clientTop || body.clientTop || 0;
			
 
				+    let clientLeft = docElem.clientLeft || body.clientLeft || 0;
			
 
				+    let top = box.top + scrollTop - clientTop;
			
 
				+    let left = box.left + scrollLeft - clientLeft;
			
 
				+    return {top: Math.round(top), left: Math.round(left)}
			
 
				+}
			
 
				+
			
 
				+
			
 
				+export default Drawer;
			
--- a/piglet/202107121640/static/camera/src/ivsDrawer.js
+++ b/piglet/202107121640/static/camera/src/ivsDrawer.js
@@ -0,0 +1,275 @@
 
				+import Drawer from './drawer.js';
			
 
				+class IvsDrawer extends Drawer {
			
 
				+    constructor(canvas) {
			
 
				+        super(canvas);
			
 
				+        this.confidence = 200; //关键点最低置信度
			
 
				+        this.displayNum = 7; //大于等于该值时才绘制姿态
			
 
				+    }
			
 
				+
			
 
				+    _init() {
			
 
				+        this.context.textAlign = 'left';
			
 
				+        this.context.textBaseline = 'bottom';
			
 
				+    }
			
 
				+
			
 
				+    draw(data, time) {
			
 
				+        this.context.clearRect(0, 0, this.canvas.width, this.canvas.height);
			
 
				+        let rect = null,
			
 
				+            length = 0,
			
 
				+            undrawPoints = [],
			
 
				+            bodyLineWidth = 0,
			
 
				+            confidencePoint = [];
			
 
				+        let bodyCount = 0,
			
 
				+            speedBodyCount = 0;
			
 
				+        data.map((content, k) => {
			
 
				+            let {
			
 
				+                points,
			
 
				+                boundingBox,
			
 
				+                handsUp,
			
 
				+                boxConfidence,
			
 
				+                Loiter,
			
 
				+                Standing,
			
 
				+                Alone,
			
 
				+                guides,
			
 
				+                speed,
			
 
				+                overSpeed,
			
 
				+                id
			
 
				+            } = content;
			
 
				+            switch (content.type) {
			
 
				+                case 'rect':
			
 
				+                    this.context.beginPath();
			
 
				+                    this.context.strokeStyle = '#00ff00';
			
 
				+                    this.context.fillStyle = '#00ff00';
			
 
				+                    this.context.lineWidth = 1;//线条的宽度
			
 
				+                    this.context.font = 'bold 20px Arial';
			
 
				+                    if (!content.quality) {
			
 
				+                        this.context.strokeStyle = '#ff0000';
			
 
				+                    }
			
 
				+
			
 
				+                    rect = this._toRealCoordinate(content.rect[0], content.rect[1]);
			
 
				+                    rect.push.apply(rect, this._toRealCoordinate(content.rect[2], content.rect[3]));
			
 
				+                    this._drawRect(rect);
			
 
				+
			
 
				+                    //this.context.font = 'bold 20px Arial';
			
 
				+                    //this.context.fillStyle = '#00ff00';
			
 
				+                    // this._drawText(content.id, rect[0], rect[1]);
			
 
				+                    // this._drawText(content.id, rect[0], rect[1]);
			
 
				+                    // if (content.text) {
			
 
				+                    //     this._drawText(content.text, rect[0], rect[1] - 20);
			
 
				+                    // }
			
 
				+                    if (content.text !== undefined) {
			
 
				+                        this._drawText(content.text, rect[0], rect[1] - 5);
			
 
				+                    }
			
 
				+                    //console.log('绘制 ', time)
			
 
				+                    this.context.stroke();
			
 
				+                    this.context.closePath();
			
 
				+                    break;
			
 
				+                case 'text':
			
 
				+                    break;
			
 
				+                case 'coco-pose':
			
 
				+                    length = points.length;
			
 
				+                    undrawPoints = [];
			
 
				+                    bodyLineWidth = boundingBox[2] > 2048 ? 6 : ( boundingBox[2] > 512 ? 4 : 2);
			
 
				+                    //过滤掉置信点不够的情况
			
 
				+                    confidencePoint = points.filter((point) => {
			
 
				+                        return point.confidence > this.confidence;
			
 
				+                    });
			
 
				+                    if (confidencePoint.length >= this.displayNum) {
			
 
				+                        this.context.lineWidth = bodyLineWidth;
			
 
				+                        //绘制实线
			
 
				+                        for (let i = 0; i < length; i++) {
			
 
				+                            if (undrawPoints.includes(i) || points[i].parent === -1) {
			
 
				+                                continue;
			
 
				+                            }
			
 
				+                            let point = this._toRealCoordinate(points[i].x, points[i].y);
			
 
				+                            let parentNode = points[points[i].parent];
			
 
				+                            let parentPoint = this._toRealCoordinate(parentNode.x, parentNode.y);
			
 
				+
			
 
				+                            this.context.strokeStyle = handsUp ? '#ff0000' : points[i].pointColor;
			
 
				+                            //confidence高于阈值时画实线，否则透明度降低
			
 
				+                            if ((points[i].confidence <= this.confidence) || (parentNode.confidence <= this.confidence)) {
			
 
				+                                this.context.globalAlpha = 0.3;
			
 
				+                            }
			
 
				+                            this.context.beginPath();
			
 
				+                            this.context.moveTo(point[0], point[1]);
			
 
				+                            this.context.lineTo(parentPoint[0], parentPoint[1]);
			
 
				+                            this.context.stroke();
			
 
				+                            this.context.globalAlpha = 1;
			
 
				+                            this.context.closePath();
			
 
				+                        }
			
 
				+                        //绘制圆
			
 
				+                        for (let i = 0; i < length; i++) {
			
 
				+                            if (undrawPoints.includes(i)) {
			
 
				+                                continue;
			
 
				+                            }
			
 
				+                            this.context.fillStyle = handsUp ? '#ffff00' : points[i].pointColor;
			
 
				+                            //if ((points[i].parent !== -1 && points[i].confidence > this.confidence && points[points[i].parent].confidence > this.confidence)
			
 
				+                            //    || (points[i].parent === -1 && points[i].confidence > this.confidence)) {
			
 
				+                            let point = this._toRealCoordinate(points[i].x, points[i].y);
			
 
				+                            this.context.beginPath();
			
 
				+                            this._drawArc(point[0], point[1], bodyLineWidth);
			
 
				+                            this.context.fill();
			
 
				+                            this.context.closePath();
			
 
				+                            //}
			
 
				+                        }
			
 
				+                    } else {
			
 
				+                        //console.log('only', confidencePoint.length, ' points');
			
 
				+                    }
			
 
				+                    //绘制人体框
			
 
				+                    if (boxConfidence >= 0) {
			
 
				+                        this.context.beginPath();
			
 
				+                        this.context.lineWidth = 1;//线条的宽度
			
 
				+                        this.context.strokeStyle = handsUp ? '#ff0000': '#0000ff';
			
 
				+                        this.context.fillStyle = '#ffff00';
			
 
				+                        this.context.font = 'bold 20px Arial';
			
 
				+                        rect = this._toRealCoordinate(boundingBox[0], boundingBox[1]);
			
 
				+                        rect.push.apply(rect, this._toRealCoordinate(boundingBox[2], boundingBox[3]));
			
 
				+                        this._drawRect(rect);
			
 
				+                        this._drawText(content.id, rect[0], rect[1] - 10);
			
 
				+                        this.context.stroke();
			
 
				+                        this.context.closePath();
			
 
				+                    }
			
 
				+                    break;
			
 
				+                case 'region-detect':
			
 
				+                    let {state, area} = content;
			
 
				+                    this.context.lineWidth = 2;
			
 
				+                    this.context.strokeStyle = (state === 1) ? '#ffff00' : '#ff0000';
			
 
				+
			
 
				+                    this.context.beginPath();
			
 
				+                    let beginPoint = this._toRealCoordinate(area[0].x, area[0].y);
			
 
				+                    this.context.moveTo(beginPoint[0], beginPoint[1]);
			
 
				+                    for (let i = 1; i < area.length; i++) {
			
 
				+                        let point = this._toRealCoordinate(area[i].x, area[i].y);
			
 
				+                        this.context.lineTo(point[0], point[1]);
			
 
				+                    }
			
 
				+                    this.context.lineTo(beginPoint[0], beginPoint[1]);
			
 
				+                    this.context.stroke();
			
 
				+                    this.context.closePath();
			
 
				+                    break;
			
 
				+                case 'coco-poseex':
			
 
				+                    length = points.length;
			
 
				+                    undrawPoints = [];
			
 
				+                    bodyLineWidth = boundingBox[2] > 2048 ? 6 : ( boundingBox[2] > 512 ? 4 : 2);
			
 
				+                    //过滤掉置信点不够的情况
			
 
				+                    confidencePoint = points.filter((point) => {
			
 
				+                        return point.confidence > this.confidence;
			
 
				+                    });
			
 
				+                    if (confidencePoint.length >= this.displayNum) {
			
 
				+                        this.context.lineWidth = bodyLineWidth;
			
 
				+                        //绘制实线
			
 
				+                        for (let i = 0; i < length; i++) {
			
 
				+                            if (undrawPoints.includes(i) || points[i].parent === -1) {
			
 
				+                                continue;
			
 
				+                            }
			
 
				+                            let point = this._toRealCoordinate(points[i].x, points[i].y);
			
 
				+                            let parentNode = points[points[i].parent];
			
 
				+                            let parentPoint = this._toRealCoordinate(parentNode.x, parentNode.y);
			
 
				+
			
 
				+                            this.context.strokeStyle = handsUp ? '#ff0000' : points[i].pointColor;
			
 
				+                            //confidence高于阈值时画实线，否则透明度降低
			
 
				+                            if ((points[i].confidence <= this.confidence) || (parentNode.confidence <= this.confidence)) {
			
 
				+                                this.context.globalAlpha = 0.3;
			
 
				+                            }
			
 
				+                            this.context.beginPath();
			
 
				+                            this.context.moveTo(point[0], point[1]);
			
 
				+                            this.context.lineTo(parentPoint[0], parentPoint[1]);
			
 
				+                            this.context.stroke();
			
 
				+                            this.context.globalAlpha = 1;
			
 
				+                            this.context.closePath();
			
 
				+                        }
			
 
				+                        //绘制圆
			
 
				+                        for (let i = 0; i < length; i++) {
			
 
				+                            if (undrawPoints.includes(i)) {
			
 
				+                                continue;
			
 
				+                            }
			
 
				+                            this.context.fillStyle = handsUp ? '#ffff00' : points[i].pointColor;
			
 
				+                            //if ((points[i].parent !== -1 && points[i].confidence > this.confidence && points[points[i].parent].confidence > this.confidence)
			
 
				+                            //    || (points[i].parent === -1 && points[i].confidence > this.confidence)) {
			
 
				+                            let point = this._toRealCoordinate(points[i].x, points[i].y);
			
 
				+                            this.context.beginPath();
			
 
				+                            this._drawArc(point[0], point[1], bodyLineWidth);
			
 
				+                            this.context.fill();
			
 
				+                            this.context.closePath();
			
 
				+                            //}
			
 
				+                        }
			
 
				+                    } else {
			
 
				+                        //console.log('only', confidencePoint.length, ' points');
			
 
				+                    }
			
 
				+                    //绘制人体框
			
 
				+                    if (boxConfidence >= 0) {
			
 
				+                        let strokeStyle = (Loiter === 2 || Standing || Alone) ? '#ff0000' : (Loiter ? '#EFB842' : '#0000ff');
			
 
				+                        this.context.beginPath();
			
 
				+                        this.context.lineWidth = 1;//线条的宽度
			
 
				+                        this.context.strokeStyle = strokeStyle;
			
 
				+                        this.context.fillStyle = '#ffff00';
			
 
				+                        this.context.font = 'bold 20px Arial';
			
 
				+                        rect = this._toRealCoordinate(boundingBox[0], boundingBox[1]);
			
 
				+                        rect.push.apply(rect, this._toRealCoordinate(boundingBox[2], boundingBox[3]));
			
 
				+                        this._drawRect(rect);
			
 
				+                        this._drawText(content.id, rect[0], rect[1] - 10);
			
 
				+                        this.context.stroke();
			
 
				+                        this.context.closePath();
			
 
				+                    }
			
 
				+
			
 
				+                    //绘制参考线
			
 
				+                    if(guides) {
			
 
				+                        this.context.strokeStyle = '#0000ff';
			
 
				+                        let point0 = this._toRealCoordinate(guides[0].x, guides[0].y);
			
 
				+                        let point1 = this._toRealCoordinate(guides[1].x, guides[1].y);
			
 
				+                        this.context.beginPath();
			
 
				+                        this.context.setLineDash([10]);
			
 
				+                        this.context.moveTo(point0[0], point0[1]);
			
 
				+                        this.context.lineTo(point1[0], point1[1]);
			
 
				+                        this._drawText(content.id, point1[0], point1[1] - 10);
			
 
				+                        this.context.stroke();
			
 
				+                        this.context.setLineDash([]);
			
 
				+                        this.context.closePath();
			
 
				+                    }
			
 
				+                    bodyCount++;
			
 
				+                    break;
			
 
				+                case 'over-speed':
			
 
				+                    this.context.beginPath();
			
 
				+                    this.context.fillStyle = overSpeed ? '#ff0000' : '#ffff00';
			
 
				+                    this.context.font = 'bold 16px Arial';
			
 
				+                    if(overSpeed) {
			
 
				+                        this._drawText(`ID: ${id}  speed: ${(speed / 100).toFixed(2)} m/s PMD`, 10, speedBodyCount * 20 + 30);
			
 
				+                    } else {
			
 
				+                        this._drawText(`ID: ${id}  speed: ${(speed / 100).toFixed(2)} m/s`, 10, speedBodyCount * 20 + 30);
			
 
				+                    }
			
 
				+                    this.context.stroke();
			
 
				+                    this.context.closePath();
			
 
				+                    speedBodyCount++;
			
 
				+                    break;
			
 
				+                default:
			
 
				+                    console.log('unknown ivs type: ', content.type);
			
 
				+                    break;
			
 
				+            }
			
 
				+        });
			
 
				+        //人数统计
			
 
				+        if(bodyCount) {
			
 
				+            this.context.beginPath();
			
 
				+            this.context.fillStyle = '#ffff00';
			
 
				+            this._drawText('人数:' + bodyCount, this.canvas.width - 100, 100);
			
 
				+            this.context.closePath();
			
 
				+        }
			
 
				+    }
			
 
				+
			
 
				+
			
 
				+    _drawRect(rect) {
			
 
				+        //console.log(rect)
			
 
				+        this.context.rect(rect[0], rect[1], rect[2], rect[3]);
			
 
				+    }
			
 
				+
			
 
				+    _drawText(text, x, y) {
			
 
				+        this.context.fillText(text, x, y);
			
 
				+    }
			
 
				+
			
 
				+    _drawArc(x, y, r) {
			
 
				+        this.context.arc(x, y, r, 0, 360);
			
 
				+    }
			
 
				+}
			
 
				+
			
 
				+function f() {
			
 
				+
			
 
				+}
			
 
				+
			
 
				+export default IvsDrawer;
			
--- a/piglet/202107121640/static/camera/src/md5.js
+++ b/piglet/202107121640/static/camera/src/md5.js
@@ -0,0 +1,257 @@
 
				+/* eslint-disable */
			
 
				+/*
			
 
				+ * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
			
 
				+ * Digest Algorithm, as defined in RFC 1321.
			
 
				+ * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002.
			
 
				+ * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
			
 
				+ * Distributed under the BSD License
			
 
				+ * See http://pajhome.org.uk/crypt/md5 for more info.
			
 
				+ */
			
 
				+
			
 
				+/*
			
 
				+ * Configurable variables. You may need to tweak these to be compatible with
			
 
				+ * the server-side, but the defaults work in most cases.
			
 
				+ */
			
 
				+var hexcase = 0;  /* hex output format. 0 - lowercase; 1 - uppercase        */
			
 
				+var b64pad  = ""; /* base-64 pad character. "=" for strict RFC compliance   */
			
 
				+var chrsz   = 8;  /* bits per input character. 8 - ASCII; 16 - Unicode      */
			
 
				+
			
 
				+/*
			
 
				+ * These are the functions you'll usually want to call
			
 
				+ * They take string arguments and return either hex or base-64 encoded strings
			
 
				+ */
			
 
				+export function hex_md5(s){ return binl2hex(core_md5(str2binl(s), s.length * chrsz));}
			
 
				+function b64_md5(s){ return binl2b64(core_md5(str2binl(s), s.length * chrsz));}
			
 
				+function str_md5(s){ return binl2str(core_md5(str2binl(s), s.length * chrsz));}
			
 
				+function hex_hmac_md5(key, data) { return binl2hex(core_hmac_md5(key, data)); }
			
 
				+function b64_hmac_md5(key, data) { return binl2b64(core_hmac_md5(key, data)); }
			
 
				+function str_hmac_md5(key, data) { return binl2str(core_hmac_md5(key, data)); }
			
 
				+
			
 
				+/*
			
 
				+ * Perform a simple self-test to see if the VM is working
			
 
				+ */
			
 
				+function md5_vm_test()
			
 
				+{
			
 
				+  return hex_md5("abc") == "900150983cd24fb0d6963f7d28e17f72";
			
 
				+}
			
 
				+
			
 
				+/*
			
 
				+ * Calculate the MD5 of an array of little-endian words, and a bit length
			
 
				+ */
			
 
				+function core_md5(x, len)
			
 
				+{
			
 
				+  /* append padding */
			
 
				+  x[len >> 5] |= 0x80 << ((len) % 32);
			
 
				+  x[(((len + 64) >>> 9) << 4) + 14] = len;
			
 
				+
			
 
				+  var a =  1732584193;
			
 
				+  var b = -271733879;
			
 
				+  var c = -1732584194;
			
 
				+  var d =  271733878;
			
 
				+
			
 
				+  for(var i = 0; i < x.length; i += 16)
			
 
				+  {
			
 
				+    var olda = a;
			
 
				+    var oldb = b;
			
 
				+    var oldc = c;
			
 
				+    var oldd = d;
			
 
				+
			
 
				+    a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936);
			
 
				+    d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586);
			
 
				+    c = md5_ff(c, d, a, b, x[i+ 2], 17,  606105819);
			
 
				+    b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);
			
 
				+    a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897);
			
 
				+    d = md5_ff(d, a, b, c, x[i+ 5], 12,  1200080426);
			
 
				+    c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341);
			
 
				+    b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983);
			
 
				+    a = md5_ff(a, b, c, d, x[i+ 8], 7 ,  1770035416);
			
 
				+    d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417);
			
 
				+    c = md5_ff(c, d, a, b, x[i+10], 17, -42063);
			
 
				+    b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162);
			
 
				+    a = md5_ff(a, b, c, d, x[i+12], 7 ,  1804603682);
			
 
				+    d = md5_ff(d, a, b, c, x[i+13], 12, -40341101);
			
 
				+    c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290);
			
 
				+    b = md5_ff(b, c, d, a, x[i+15], 22,  1236535329);
			
 
				+
			
 
				+    a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510);
			
 
				+    d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632);
			
 
				+    c = md5_gg(c, d, a, b, x[i+11], 14,  643717713);
			
 
				+    b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302);
			
 
				+    a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691);
			
 
				+    d = md5_gg(d, a, b, c, x[i+10], 9 ,  38016083);
			
 
				+    c = md5_gg(c, d, a, b, x[i+15], 14, -660478335);
			
 
				+    b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848);
			
 
				+    a = md5_gg(a, b, c, d, x[i+ 9], 5 ,  568446438);
			
 
				+    d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690);
			
 
				+    c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961);
			
 
				+    b = md5_gg(b, c, d, a, x[i+ 8], 20,  1163531501);
			
 
				+    a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467);
			
 
				+    d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784);
			
 
				+    c = md5_gg(c, d, a, b, x[i+ 7], 14,  1735328473);
			
 
				+    b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734);
			
 
				+
			
 
				+    a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558);
			
 
				+    d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463);
			
 
				+    c = md5_hh(c, d, a, b, x[i+11], 16,  1839030562);
			
 
				+    b = md5_hh(b, c, d, a, x[i+14], 23, -35309556);
			
 
				+    a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060);
			
 
				+    d = md5_hh(d, a, b, c, x[i+ 4], 11,  1272893353);
			
 
				+    c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632);
			
 
				+    b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640);
			
 
				+    a = md5_hh(a, b, c, d, x[i+13], 4 ,  681279174);
			
 
				+    d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222);
			
 
				+    c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979);
			
 
				+    b = md5_hh(b, c, d, a, x[i+ 6], 23,  76029189);
			
 
				+    a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487);
			
 
				+    d = md5_hh(d, a, b, c, x[i+12], 11, -421815835);
			
 
				+    c = md5_hh(c, d, a, b, x[i+15], 16,  530742520);
			
 
				+    b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651);
			
 
				+
			
 
				+    a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844);
			
 
				+    d = md5_ii(d, a, b, c, x[i+ 7], 10,  1126891415);
			
 
				+    c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905);
			
 
				+    b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055);
			
 
				+    a = md5_ii(a, b, c, d, x[i+12], 6 ,  1700485571);
			
 
				+    d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606);
			
 
				+    c = md5_ii(c, d, a, b, x[i+10], 15, -1051523);
			
 
				+    b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799);
			
 
				+    a = md5_ii(a, b, c, d, x[i+ 8], 6 ,  1873313359);
			
 
				+    d = md5_ii(d, a, b, c, x[i+15], 10, -30611744);
			
 
				+    c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380);
			
 
				+    b = md5_ii(b, c, d, a, x[i+13], 21,  1309151649);
			
 
				+    a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070);
			
 
				+    d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379);
			
 
				+    c = md5_ii(c, d, a, b, x[i+ 2], 15,  718787259);
			
 
				+    b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551);
			
 
				+
			
 
				+    a = safe_add(a, olda);
			
 
				+    b = safe_add(b, oldb);
			
 
				+    c = safe_add(c, oldc);
			
 
				+    d = safe_add(d, oldd);
			
 
				+  }
			
 
				+  return Array(a, b, c, d);
			
 
				+
			
 
				+}
			
 
				+
			
 
				+/*
			
 
				+ * These functions implement the four basic operations the algorithm uses.
			
 
				+ */
			
 
				+function md5_cmn(q, a, b, x, s, t)
			
 
				+{
			
 
				+  return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b);
			
 
				+}
			
 
				+function md5_ff(a, b, c, d, x, s, t)
			
 
				+{
			
 
				+  return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);
			
 
				+}
			
 
				+function md5_gg(a, b, c, d, x, s, t)
			
 
				+{
			
 
				+  return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);
			
 
				+}
			
 
				+function md5_hh(a, b, c, d, x, s, t)
			
 
				+{
			
 
				+  return md5_cmn(b ^ c ^ d, a, b, x, s, t);
			
 
				+}
			
 
				+function md5_ii(a, b, c, d, x, s, t)
			
 
				+{
			
 
				+  return md5_cmn(c ^ (b | (~d)), a, b, x, s, t);
			
 
				+}
			
 
				+
			
 
				+/*
			
 
				+ * Calculate the HMAC-MD5, of a key and some data
			
 
				+ */
			
 
				+function core_hmac_md5(key, data)
			
 
				+{
			
 
				+  var bkey = str2binl(key);
			
 
				+  if(bkey.length > 16) bkey = core_md5(bkey, key.length * chrsz);
			
 
				+
			
 
				+  var ipad = Array(16), opad = Array(16);
			
 
				+  for(var i = 0; i < 16; i++)
			
 
				+  {
			
 
				+    ipad[i] = bkey[i] ^ 0x36363636;
			
 
				+    opad[i] = bkey[i] ^ 0x5C5C5C5C;
			
 
				+  }
			
 
				+
			
 
				+  var hash = core_md5(ipad.concat(str2binl(data)), 512 + data.length * chrsz);
			
 
				+  return core_md5(opad.concat(hash), 512 + 128);
			
 
				+}
			
 
				+
			
 
				+/*
			
 
				+ * Add integers, wrapping at 2^32. This uses 16-bit operations internally
			
 
				+ * to work around bugs in some JS interpreters.
			
 
				+ */
			
 
				+function safe_add(x, y)
			
 
				+{
			
 
				+  var lsw = (x & 0xFFFF) + (y & 0xFFFF);
			
 
				+  var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
			
 
				+  return (msw << 16) | (lsw & 0xFFFF);
			
 
				+}
			
 
				+
			
 
				+/*
			
 
				+ * Bitwise rotate a 32-bit number to the left.
			
 
				+ */
			
 
				+function bit_rol(num, cnt)
			
 
				+{
			
 
				+  return (num << cnt) | (num >>> (32 - cnt));
			
 
				+}
			
 
				+
			
 
				+/*
			
 
				+ * Convert a string to an array of little-endian words
			
 
				+ * If chrsz is ASCII, characters >255 have their hi-byte silently ignored.
			
 
				+ */
			
 
				+function str2binl(str)
			
 
				+{
			
 
				+  var bin = Array();
			
 
				+  var mask = (1 << chrsz) - 1;
			
 
				+  for(var i = 0; i < str.length * chrsz; i += chrsz)
			
 
				+    bin[i>>5] |= (str.charCodeAt(i / chrsz) & mask) << (i%32);
			
 
				+  return bin;
			
 
				+}
			
 
				+
			
 
				+/*
			
 
				+ * Convert an array of little-endian words to a string
			
 
				+ */
			
 
				+function binl2str(bin)
			
 
				+{
			
 
				+  var str = "";
			
 
				+  var mask = (1 << chrsz) - 1;
			
 
				+  for(var i = 0; i < bin.length * 32; i += chrsz)
			
 
				+    str += String.fromCharCode((bin[i>>5] >>> (i % 32)) & mask);
			
 
				+  return str;
			
 
				+}
			
 
				+
			
 
				+/*
			
 
				+ * Convert an array of little-endian words to a hex string.
			
 
				+ */
			
 
				+function binl2hex(binarray)
			
 
				+{
			
 
				+  var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
			
 
				+  var str = "";
			
 
				+  for(var i = 0; i < binarray.length * 4; i++)
			
 
				+  {
			
 
				+    str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) +
			
 
				+           hex_tab.charAt((binarray[i>>2] >> ((i%4)*8  )) & 0xF);
			
 
				+  }
			
 
				+  return str;
			
 
				+}
			
 
				+
			
 
				+/*
			
 
				+ * Convert an array of little-endian words to a base-64 string
			
 
				+ */
			
 
				+function binl2b64(binarray)
			
 
				+{
			
 
				+  var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
			
 
				+  var str = "";
			
 
				+  for(var i = 0; i < binarray.length * 4; i += 3)
			
 
				+  {
			
 
				+    var triplet = (((binarray[i   >> 2] >> 8 * ( i   %4)) & 0xFF) << 16)
			
 
				+                | (((binarray[i+1 >> 2] >> 8 * ((i+1)%4)) & 0xFF) << 8 )
			
 
				+                |  ((binarray[i+2 >> 2] >> 8 * ((i+2)%4)) & 0xFF);
			
 
				+    for(var j = 0; j < 4; j++)
			
 
				+    {
			
 
				+      if(i * 8 + j * 6 > binarray.length * 32) str += b64pad;
			
 
				+      else str += tab.charAt((triplet >> 6*(3-j)) & 0x3F);
			
 
				+    }
			
 
				+  }
			
 
				+  return str;
			
 
				+}
			
--- a/piglet/202107121640/static/camera/src/ml5.min.js
+++ b/piglet/202107121640/static/camera/src/ml5.min.js
--- a/piglet/202107121640/static/camera/src/player.js
+++ b/piglet/202107121640/static/camera/src/player.js
@@ -0,0 +1,125 @@
 
				+import WebSocketServer from './websocketServer.js';
			
 
				+import {BlankROIDrawer, ROIDrawer, StandingDrawer, SpeedLine} from './ROIDrawer.js';
			
 
				+
			
 
				+let ROIdrawer = null;
			
 
				+class Player {
			
 
				+    constructor(option) {
			
 
				+        this.ws = null;
			
 
				+        this.options = option;
			
 
				+        this.events = {
			
 
				+            error: ()=>{}
			
 
				+        };
			
 
				+        this.ROI = {
			
 
				+            ROIDrawer,
			
 
				+        }
			
 
				+    }
			
 
				+
			
 
				+    init() {
			
 
				+        //console.log('init');
			
 
				+        ROIdrawer = new ROIDrawer(this.options.drawer);
			
 
				+        this.options.ROI = ROIdrawer;
			
 
				+        this.ws = new WebSocketServer(this.options);
			
 
				+        this.ws.init();
			
 
				+    }
			
 
				+
			
 
				+    connect() {
			
 
				+        for(let i in this.events) {
			
 
				+            this.ws.setCallBack(i, this.events[i]);
			
 
				+        }
			
 
				+        this.ws.connect();
			
 
				+    }
			
 
				+
			
 
				+    play() {
			
 
				+        //console.log('player')
			
 
				+    }
			
 
				+
			
 
				+    pause() {
			
 
				+        //console.log('pause')
			
 
				+    }
			
 
				+
			
 
				+    close() {
			
 
				+        this.ws.close();
			
 
				+        ROIdrawer.terminate();
			
 
				+        //console.log('close1')
			
 
				+    }
			
 
				+
			
 
				+    /**
			
 
				+     * 绘制额外信息
			
 
				+     * @param obj
			
 
				+     */
			
 
				+    updateInfo(obj) {
			
 
				+        this.ws.updateInfo(obj);
			
 
				+    }
			
 
				+
			
 
				+    changeROIType(type) {
			
 
				+        ROIdrawer && ROIdrawer.terminate();
			
 
				+        switch (type) {
			
 
				+            case 'Polygon1':
			
 
				+                ROIdrawer = new ROIDrawer(this.options.drawer);
			
 
				+                ROIdrawer.setPolygonNum(1);
			
 
				+                ROIdrawer.cover(this.options.video);
			
 
				+                ROIdrawer.setROIFinishedCallback(this.events['ROIFinished']);
			
 
				+                break;
			
 
				+            case 'Polygon2':
			
 
				+                ROIdrawer = new ROIDrawer(this.options.drawer);
			
 
				+                ROIdrawer.setPolygonNum(2);
			
 
				+                ROIdrawer.cover(this.options.video);
			
 
				+                ROIdrawer.setROIFinishedCallback(this.events['ROIFinished']);
			
 
				+                break;
			
 
				+            case 'Polygon1Line1':
			
 
				+                ROIdrawer = new StandingDrawer(this.options.drawer);
			
 
				+                ROIdrawer.cover(this.options.video);
			
 
				+                ROIdrawer.setROIFinishedCallback(this.events['ROIFinished']);
			
 
				+                break;
			
 
				+            case 'Line2':
			
 
				+                ROIdrawer = new SpeedLine(this.options.drawer);
			
 
				+                ROIdrawer.setLineNum(2);
			
 
				+                ROIdrawer.cover(this.options.video);
			
 
				+                ROIdrawer.setROIFinishedCallback(this.events['ROIFinished']);
			
 
				+                break;
			
 
				+            default:
			
 
				+                ROIdrawer = new BlankROIDrawer(this.options.drawer);
			
 
				+                break;
			
 
				+        }
			
 
				+        this.ws.setROIDrawer(ROIdrawer);
			
 
				+    }
			
 
				+
			
 
				+
			
 
				+    setROI(data) {
			
 
				+        ROIdrawer && ROIdrawer.setROI(data);
			
 
				+    }
			
 
				+
			
 
				+    resetROI() {
			
 
				+        ROIdrawer && ROIdrawer.reset();
			
 
				+    }
			
 
				+
			
 
				+    getROIData() {
			
 
				+        if(ROIdrawer) {
			
 
				+            return ROIdrawer.getROIData();
			
 
				+        }
			
 
				+        return null;
			
 
				+    }
			
 
				+
			
 
				+    setPolygonNum(num) {
			
 
				+        ROIdrawer && ROIdrawer.setPolygonNum(num);
			
 
				+    }
			
 
				+
			
 
				+    /**
			
 
				+     * 自定义事件
			
 
				+     * 目前支持如下事件
			
 
				+     * [error] websocket连接失败
			
 
				+     * [noStream] 收不到码流
			
 
				+     * [canplay] 视频能够播放时触发
			
 
				+     * [initialCompleted] 视频初始化完成, 首次canplay
			
 
				+     * [ROIFinished] 手动绘制ROI完成时触发
			
 
				+     *
			
 
				+     * @param event 事件名
			
 
				+     * @param callback 事件响应函数
			
 
				+     */
			
 
				+    on(event, callback) {
			
 
				+        this.events[event] = callback;
			
 
				+    }
			
 
				+}
			
 
				+
			
 
				+export default Player;
			
 
				+
			
--- a/piglet/202107121640/static/camera/src/videoWorker.js
+++ b/piglet/202107121640/static/camera/src/videoWorker.js
@@ -0,0 +1,108 @@
 
				+importScripts(
			
 
				+    './H264SPSParser.js',
			
 
				+    './H264Session.js',
			
 
				+);
			
 
				+
			
 
				+
			
 
				+addEventListener('message', receiveMessage);
			
 
				+
			
 
				+let sdpInfo = null;
			
 
				+let rtpSession = null;
			
 
				+let videoCHID = -1;
			
 
				+let videoRtpSessionsArray = [];
			
 
				+
			
 
				+function  receiveMessage(event) {
			
 
				+    //console.log(event.data)
			
 
				+    var message = event.data;
			
 
				+
			
 
				+    switch (message.type) {
			
 
				+        case 'sdpInfo':
			
 
				+            sdpInfo = message.data;
			
 
				+
			
 
				+            initRTPSession(sdpInfo.sdpInfo);
			
 
				+        case 'rtpDataArray':
			
 
				+            //console.log(message.data.length)
			
 
				+            for (let num = 0; num < message.data.length; num++) {
			
 
				+                receiveMessage({
			
 
				+                    'type': 'rtpData',
			
 
				+                    'data': message.data[num],
			
 
				+                });
			
 
				+            }
			
 
				+            break;
			
 
				+        case 'rtpData':
			
 
				+            videoCHID = message.data.rtspInterleave[1];
			
 
				+            if (typeof videoRtpSessionsArray[videoCHID] !== "undefined") {
			
 
				+                videoRtpSessionsArray[videoCHID].remuxRTPData(message.data.rtspInterleave,
			
 
				+                    message.data.header, message.data.payload);
			
 
				+            }else { // RTCP包
			
 
				+                //console.log('Interleave:  ' + videoCHID);
			
 
				+                //console.log(message.data.rtspInterleave, message.data.header);
			
 
				+                //return;
			
 
				+            }
			
 
				+            break;
			
 
				+    }
			
 
				+}
			
 
				+
			
 
				+function initRTPSession(sdpInfo) {
			
 
				+    for(let [i, len] = [0, sdpInfo.length]; i < len; i++) {
			
 
				+        if(sdpInfo[i].codecName === 'H264') {
			
 
				+            //console.log(sdpInfo)
			
 
				+            rtpSession = new H264Session();
			
 
				+            rtpSession.init();
			
 
				+            rtpSession.rtpSessionCallback = RtpReturnCallback;
			
 
				+            if(sdpInfo[i].Framerate) {
			
 
				+                rtpSession.setFrameRate(sdpInfo[i].Framerate);
			
 
				+            }
			
 
				+        }
			
 
				+
			
 
				+        if(rtpSession !== null) {
			
 
				+            videoCHID = sdpInfo[i].RtpInterlevedID;
			
 
				+            videoRtpSessionsArray[videoCHID] = rtpSession;
			
 
				+        }
			
 
				+    }
			
 
				+}
			
 
				+
			
 
				+function RtpReturnCallback(dataInfo) {
			
 
				+
			
 
				+    if(dataInfo === null || dataInfo === undefined) {
			
 
				+        //console.log('数据为空')
			
 
				+        return;
			
 
				+    }
			
 
				+    let mediaData = dataInfo;
			
 
				+    if(mediaData.decodeMode === 'canvas') {
			
 
				+        sendMessage('YUVData', mediaData.frameData);
			
 
				+        return;
			
 
				+    }
			
 
				+    //console.log( mediaData.SEIInfo)
			
 
				+    if(mediaData.initSegmentData !== null && mediaData.initSegmentData !== undefined) {
			
 
				+        //sendMessage('codecInfo', mediaData.codecInfo)
			
 
				+        //sendMessage('initSegment', mediaData.initSegmentData);
			
 
				+        sendMessage('videoInit', mediaData);
			
 
				+        sendMessage('firstvideoTimeStamp', mediaData.timeStamp);
			
 
				+
			
 
				+    }
			
 
				+    if(mediaData.SEIInfo !== null && mediaData.SEIInfo !== undefined) {//SEI信息
			
 
				+        sendMessage('SEI', mediaData.SEIInfo);
			
 
				+    }
			
 
				+
			
 
				+    if (mediaData.frameData && mediaData.frameData.length > 0) {
			
 
				+        sendMessage('videoTimeStamp', mediaData.timeStamp);
			
 
				+        sendMessage('mediaSample', mediaData.mediaSample);
			
 
				+        //console.log(mediaData.frameData.length)
			
 
				+        sendMessage('videoRender', mediaData.frameData);
			
 
				+    }
			
 
				+    mediaData = null;
			
 
				+}
			
 
				+
			
 
				+function sendMessage(type, data) {
			
 
				+    let event = {
			
 
				+        type: type,
			
 
				+        data: data
			
 
				+    }
			
 
				+    if(type === 'videoRender') {
			
 
				+        postMessage(event, [data.buffer]);
			
 
				+    }else {
			
 
				+        postMessage(event);
			
 
				+    }
			
 
				+    event = null;
			
 
				+}
			
--- a/piglet/202107121640/static/camera/src/websocketServer.js
+++ b/piglet/202107121640/static/camera/src/websocketServer.js
@@ -0,0 +1,644 @@
 
				+import WorkerManager from './workerManager.js';
			
 
				+import {hex_md5}  from "./md5.js";
			
 
				+
			
 
				+function WebSocketServer(options) {
			
 
				+    let videoElement = null;
			
 
				+    let canvasElement = null;
			
 
				+    let ROIElement =null;
			
 
				+    let websocket = null;
			
 
				+    let wsURL = null;
			
 
				+    let rtspURL = null;
			
 
				+    let username = null;
			
 
				+    let password = null;
			
 
				+    let CSeq = 1;
			
 
				+    let IsDescribe = false; //RTSP响应报文中，describe时有两段，以'\r\n'分段
			
 
				+    let currentState = "Options";
			
 
				+    let describekey = false;
			
 
				+    let Authentication = '\r\n'; //认证，信令最后四个字节为'\r\n\r\n'，为补足，默认为'\r\n'
			
 
				+    let sessionID = '';
			
 
				+    let rtspSDPData = {};
			
 
				+    let SDPinfo = []; //SDP信息
			
 
				+    let setupSDPIndex = 0;
			
 
				+    let getParameterInterval = null; //保活
			
 
				+    let AACCodecInfo = null;
			
 
				+
			
 
				+//RTP包处理相关
			
 
				+    let rtspinterleave = null;
			
 
				+    let RTPPacketTotalSize = 0;
			
 
				+    let rtpheader = null;
			
 
				+    let rtpPacketArray = null;
			
 
				+
			
 
				+    let workerManager = null;
			
 
				+    let connectFailCallback = null;
			
 
				+
			
 
				+    let lastStreamTime = null; //记录收到码流的时间
			
 
				+    let getStreamInterval = null;
			
 
				+    let noStreamCallback = null;
			
 
				+
			
 
				+    const RTSP_INTERLEAVE_LENGTH = 4; //交织头占4个字节
			
 
				+    const RTSP_STATE = {
			
 
				+        OK: 200,
			
 
				+        UNAUTHORIZED: 401,
			
 
				+        NOTFOUND: 404,
			
 
				+        INVALID_RANGE: 457,
			
 
				+        NOTSERVICE: 503,
			
 
				+        DISCONNECT: 999
			
 
				+    };
			
 
				+    const SEND_GETPARM_INTERVAL = 20000; //保活时间
			
 
				+
			
 
				+    function constructor({video, canvas, ROI,wsUrl, rtspUrl, user, pwd} = {options}) {
			
 
				+        videoElement = video;
			
 
				+        canvasElement = canvas;
			
 
				+        ROIElement = ROI;
			
 
				+        wsURL = wsUrl;
			
 
				+        rtspURL = rtspUrl;
			
 
				+        username = user;
			
 
				+        password = pwd;
			
 
				+
			
 
				+    }
			
 
				+
			
 
				+    constructor.prototype = {
			
 
				+        init() {
			
 
				+            workerManager = new WorkerManager();
			
 
				+            workerManager.init(videoElement,canvasElement, ROIElement);
			
 
				+        },
			
 
				+        connect() {
			
 
				+            websocket = new WebSocket(wsURL);
			
 
				+            websocket.binaryType = 'arraybuffer';
			
 
				+            websocket.onmessage = ReceiveMessage;
			
 
				+            websocket.onopen = () => {
			
 
				+                let option = StringToU8Array("OPTIONS " + rtspURL + " RTSP/1.0\r\nCSeq: " + CSeq + "\r\n\r\n");
			
 
				+                websocket.send(option);
			
 
				+                //console.log('websocket connect')
			
 
				+            };
			
 
				+            websocket.onerror = ()=> {
			
 
				+                if(connectFailCallback) {
			
 
				+                    connectFailCallback('websocket connect fail');
			
 
				+                }
			
 
				+            }
			
 
				+        },
			
 
				+        close() {
			
 
				+            clearInterval(getParameterInterval);
			
 
				+            clearInterval(getStreamInterval);
			
 
				+            SendRtspCommand(CommandConstructor("TEARDOWN", null));
			
 
				+            websocket.close();
			
 
				+            if(workerManager) {
			
 
				+                workerManager.terminate();
			
 
				+            }
			
 
				+        },
			
 
				+        setCallBack(event, callback) {
			
 
				+            switch (event) {
			
 
				+                case 'error':
			
 
				+                    connectFailCallback = ()=>{
			
 
				+                        callback();
			
 
				+                        this.close();
			
 
				+                    };
			
 
				+                    break;
			
 
				+                case 'noStream':
			
 
				+                    noStreamCallback = ()=>{
			
 
				+                        callback();
			
 
				+                        this.close();
			
 
				+                    };
			
 
				+                    break;
			
 
				+                case 'canplay':
			
 
				+                case 'initialCompleted':
			
 
				+                case 'ROIFinished':
			
 
				+                    workerManager.setEventCallBack(event, callback);
			
 
				+                    break;
			
 
				+                default:
			
 
				+                    console.log('unsupport event');
			
 
				+            }
			
 
				+        },
			
 
				+        updateInfo(obj) {
			
 
				+            workerManager.updateInfo(obj);
			
 
				+        },
			
 
				+        setROIDrawer(ROIElement) {
			
 
				+            workerManager.setROIDrawer(ROIElement);
			
 
				+        },
			
 
				+    };
			
 
				+
			
 
				+
			
 
				+
			
 
				+    return new constructor(options);
			
 
				+
			
 
				+    /**
			
 
				+     * websocket消息处理函数
			
 
				+     * @param event
			
 
				+     * @constructor
			
 
				+     */
			
 
				+    function ReceiveMessage(event) {
			
 
				+        let data = event.data;
			
 
				+        let receiveUint8 = new Uint8Array(data);
			
 
				+        let PreceiveUint8 = new Uint8Array(receiveUint8.length);
			
 
				+        PreceiveUint8.set(receiveUint8, 0);
			
 
				+        let dataLength = PreceiveUint8.length;
			
 
				+        // if(dataLength < 10) {
			
 
				+        //     //console.log(String.fromCharCode.apply(null, PreceiveUint8))
			
 
				+        // }
			
 
				+        while (dataLength > 0) {
			
 
				+            if (PreceiveUint8[0] != 36) {//非$符号表示RTSP
			
 
				+                //console.log(PreceiveUint8[0], PreceiveUint8[1], PreceiveUint8[2], PreceiveUint8[3], PreceiveUint8[4])
			
 
				+                //console.log(PreceiveUint8.length)
			
 
				+                let PreceiveMsg = String.fromCharCode.apply(null, PreceiveUint8);
			
 
				+                //console.log(PreceiveMsg)
			
 
				+                let rtspendpos = null;
			
 
				+                if (IsDescribe === true) {
			
 
				+                    rtspendpos = PreceiveMsg.lastIndexOf("\r\n");
			
 
				+                    IsDescribe = false
			
 
				+                } else {
			
 
				+                    rtspendpos = PreceiveMsg.search("\r\n\r\n");
			
 
				+
			
 
				+                }
			
 
				+                let rtspstartpos = PreceiveMsg.search("RTSP");
			
 
				+                if (rtspstartpos !== -1) {
			
 
				+                    if (rtspendpos !== -1) {
			
 
				+                        let RTSPResArray = PreceiveUint8.subarray(rtspstartpos, rtspendpos + RTSP_INTERLEAVE_LENGTH);
			
 
				+                        PreceiveUint8 = PreceiveUint8.subarray(rtspendpos + RTSP_INTERLEAVE_LENGTH);
			
 
				+                        let receiveMsg = String.fromCharCode.apply(null, RTSPResArray);
			
 
				+                        RTSPResHandler(receiveMsg);
			
 
				+                        dataLength = PreceiveUint8.length;
			
 
				+                    } else {
			
 
				+                        dataLength = PreceiveUint8.length;
			
 
				+                        return
			
 
				+                    }
			
 
				+                } else {
			
 
				+                    PreceiveUint8 = new Uint8Array;
			
 
				+                    return
			
 
				+                }
			
 
				+            } else { //$表示RTP和RTCP
			
 
				+                //console.log('RTP开始');
			
 
				+                //console.log(PreceiveUint8.length)
			
 
				+                // if(PreceiveUint8.length == 4) {
			
 
				+                //    console.log(PreceiveUint8)
			
 
				+                // }
			
 
				+                lastStreamTime = Date.now();
			
 
				+                rtspinterleave = PreceiveUint8.subarray(0, RTSP_INTERLEAVE_LENGTH);
			
 
				+                //console.log(rtspinterleave)
			
 
				+                RTPPacketTotalSize = rtspinterleave[2] * 256 + rtspinterleave[3];
			
 
				+                if (RTPPacketTotalSize + RTSP_INTERLEAVE_LENGTH <= PreceiveUint8.length) {
			
 
				+                    rtpheader = PreceiveUint8.subarray(RTSP_INTERLEAVE_LENGTH, 16);
			
 
				+                    rtpPacketArray = PreceiveUint8.subarray(16, RTPPacketTotalSize + RTSP_INTERLEAVE_LENGTH);
			
 
				+                    //rtpCallback(rtspinterleave, rtpheader, rtpPacketArray);
			
 
				+                    workerManager.parseRtpData(rtspinterleave, rtpheader, rtpPacketArray);
			
 
				+                    PreceiveUint8 = PreceiveUint8.subarray(RTPPacketTotalSize + RTSP_INTERLEAVE_LENGTH);
			
 
				+                    //console.log('PreceiveUint8.length:  ' + PreceiveUint8.length)
			
 
				+                    dataLength = PreceiveUint8.length;
			
 
				+                } else {
			
 
				+                    dataLength = PreceiveUint8.length;
			
 
				+                    //console.count('11111111111')
			
 
				+                    //console.log(PreceiveUint8)
			
 
				+                    return
			
 
				+                }
			
 
				+            }
			
 
				+        }
			
 
				+    }
			
 
				+
			
 
				+    /**
			
 
				+     * 将字符串转为arrayBuffer
			
 
				+     * @param string
			
 
				+     */
			
 
				+    function StringToU8Array(string) {
			
 
				+        CSeq++;
			
 
				+        //console.log(string)
			
 
				+        let stringLength = string.length;
			
 
				+        let outputUint8Array = new Uint8Array(new ArrayBuffer(stringLength));
			
 
				+        for (let i = 0; i < stringLength; i++) {
			
 
				+            outputUint8Array[i] = string.charCodeAt(i);
			
 
				+        }
			
 
				+        //console.log(outputUint8Array)
			
 
				+        return outputUint8Array;
			
 
				+        //return string;
			
 
				+    }
			
 
				+
			
 
				+    /**
			
 
				+     * 处理收到的RTSP信令，解析后发送下一条
			
 
				+     * @param stringMessage
			
 
				+     * @constructor
			
 
				+     */
			
 
				+    function RTSPResHandler(stringMessage) {
			
 
				+        //console.log(stringMessage)
			
 
				+        //let seekPoint = stringMessage.search("CSeq: ") + 5;
			
 
				+        let rtspResponseMsg = parseRtsp(stringMessage);
			
 
				+//console.log(rtspResponseMsg)
			
 
				+        if (rtspResponseMsg.ResponseCode === RTSP_STATE.UNAUTHORIZED && Authentication === "\r\n") { //需要鉴权
			
 
				+            if(currentState === "Describe") {
			
 
				+                IsDescribe = false;
			
 
				+                describekey = false;
			
 
				+            }
			
 
				+            username= getUser(rtspURL).username;
			
 
				+            password = getUser(rtspURL).password;
			
 
				+            //console.log(rtspResponseMsg)
			
 
				+            SendRtspCommand(formDigest(rtspResponseMsg));
			
 
				+            Authentication = "\r\n";
			
 
				+
			
 
				+        } else if (rtspResponseMsg.ResponseCode === RTSP_STATE.OK) { //服务器端返回成功
			
 
				+            switch (currentState) {
			
 
				+                case 'Options':
			
 
				+                    currentState = "Describe";
			
 
				+                    SendRtspCommand(CommandConstructor("DESCRIBE", null));
			
 
				+                    break;
			
 
				+                case "Describe":
			
 
				+                    rtspSDPData = parseDescribeResponse(stringMessage);
			
 
				+                    if (typeof rtspResponseMsg.ContentBase !== "undefined") {
			
 
				+                        rtspSDPData.ContentBase = rtspResponseMsg.ContentBase
			
 
				+                    }
			
 
				+                    //console.log(rtspSDPData.Sessions)
			
 
				+                    for (let idx = 0; idx < rtspSDPData.Sessions.length; idx++) {
			
 
				+                        let sdpInfoObj = {};
			
 
				+                        if (rtspSDPData.Sessions[idx].CodecMime === "H264" ) { //暂时只支持H264
			
 
				+                            sdpInfoObj.codecName = rtspSDPData.Sessions[idx].CodecMime;
			
 
				+                            //sdpInfoObj.trackID = rtspSDPData.Sessions[idx].ControlURL;
			
 
				+                            sdpInfoObj.trackID = rtspSDPData.Sessions[idx].trackID;
			
 
				+                            sdpInfoObj.ClockFreq = rtspSDPData.Sessions[idx].ClockFreq;
			
 
				+                            sdpInfoObj.Port = parseInt(rtspSDPData.Sessions[idx].Port);
			
 
				+                            if (typeof rtspSDPData.Sessions[idx].Framerate !== "undefined") {
			
 
				+                                sdpInfoObj.Framerate = parseInt(rtspSDPData.Sessions[idx].Framerate)
			
 
				+                            }
			
 
				+                            if(typeof rtspSDPData.Sessions[idx].SPS !== "undefined") {
			
 
				+                                sdpInfoObj.SPS = rtspSDPData.Sessions[idx].SPS;
			
 
				+                            }
			
 
				+                            SDPinfo.push(sdpInfoObj)
			
 
				+                        } else {
			
 
				+                            console.log("Unknown codec type:", rtspSDPData.Sessions[idx].CodecMime, rtspSDPData.Sessions[idx].ControlURL)
			
 
				+                        }
			
 
				+                    }
			
 
				+                    setupSDPIndex = 0;
			
 
				+                    currentState = "Setup";
			
 
				+                    //console.log(SDPinfo[setupSDPIndex])
			
 
				+                    SendRtspCommand(CommandConstructor("SETUP", SDPinfo[setupSDPIndex].trackID, setupSDPIndex));
			
 
				+                    //SendRtspCommand(CommandConstructor("SETUP", 'track1'));
			
 
				+                    break;
			
 
				+                case "Setup":
			
 
				+                    sessionID = rtspResponseMsg.SessionID;
			
 
				+                    //多路流(如音频流)
			
 
				+                    //在Describe中暂时只解析H264视频流，因此SDPinfo.length始终为1
			
 
				+                    if (setupSDPIndex < SDPinfo.length) {
			
 
				+                        SDPinfo[setupSDPIndex].RtpInterlevedID = rtspResponseMsg.RtpInterlevedID;
			
 
				+                        SDPinfo[setupSDPIndex].RtcpInterlevedID = rtspResponseMsg.RtcpInterlevedID;
			
 
				+                        setupSDPIndex += 1;
			
 
				+                        if (setupSDPIndex !== SDPinfo.length) {
			
 
				+                            SendRtspCommand(CommandConstructor("SETUP", SDPinfo[setupSDPIndex].trackID, setupSDPIndex));
			
 
				+                        } else {
			
 
				+                            workerManager.sendSdpInfo(SDPinfo);
			
 
				+                            currentState = "Play";
			
 
				+                            SendRtspCommand(CommandConstructor("PLAY"));
			
 
				+                        }
			
 
				+                    }
			
 
				+
			
 
				+                    sessionID = rtspResponseMsg.SessionID;
			
 
				+                    //开始播放后，发送GET_PARAMETER进行保活
			
 
				+                    clearInterval(getParameterInterval);
			
 
				+                    getParameterInterval = setInterval(function () {
			
 
				+                        SendRtspCommand(CommandConstructor("GET_PARAMETER", null))
			
 
				+                    }, SEND_GETPARM_INTERVAL);
			
 
				+
			
 
				+                    getStreamInterval = setInterval(()=>{
			
 
				+                        if(!getBitStream()) {
			
 
				+                            console.log('超时！');
			
 
				+                            noStreamCallback && noStreamCallback();
			
 
				+                        }
			
 
				+                    }, 5000);
			
 
				+                    break;
			
 
				+                case "Play":
			
 
				+
			
 
				+                    break;
			
 
				+                default:
			
 
				+                    console.log('暂不支持的信令');
			
 
				+                    break;
			
 
				+            }
			
 
				+        } else if (rtspResponseMsg.ResponseCode === RTSP_STATE.NOTSERVICE) { //服务不可用
			
 
				+
			
 
				+        } else if (rtspResponseMsg.ResponseCode === RTSP_STATE.NOTFOUND) { //Not Found
			
 
				+
			
 
				+        }
			
 
				+    }
			
 
				+
			
 
				+    /**
			
 
				+     * 发送rtsp信令
			
 
				+     * @param sendMessage
			
 
				+     * @constructor
			
 
				+     */
			
 
				+    function SendRtspCommand(sendMessage) {
			
 
				+        //console.log(sendMessage)
			
 
				+        if (websocket !== null && websocket.readyState === WebSocket.OPEN) {
			
 
				+            if (describekey === false) {
			
 
				+                let describeCmd = sendMessage.search("DESCRIBE");
			
 
				+                if (describeCmd !== -1) {
			
 
				+                    IsDescribe = true;
			
 
				+                    describekey = true;
			
 
				+                }
			
 
				+            }
			
 
				+            //console.log(sendMessage)
			
 
				+            websocket.send(StringToU8Array(sendMessage))
			
 
				+        } else {
			
 
				+            console.log('websocket未连接')
			
 
				+        }
			
 
				+    }
			
 
				+
			
 
				+    /**
			
 
				+     * 组装RTSP信令
			
 
				+     * @param method
			
 
				+     * @param trackID
			
 
				+     * @returns {*}
			
 
				+     * @constructor
			
 
				+     */
			
 
				+    function CommandConstructor(method, trackID, interleaved) {
			
 
				+        let sendMessage;
			
 
				+        switch (method) {
			
 
				+            case"OPTIONS":
			
 
				+            case"TEARDOWN":
			
 
				+            case"SET_PARAMETERS":
			
 
				+            case"DESCRIBE":
			
 
				+                //TODO: 保活
			
 
				+                sendMessage = method + " " + rtspURL + " RTSP/1.0\r\nCSeq: " + CSeq + "\r\n" + Authentication;
			
 
				+                break;
			
 
				+            case"SETUP":
			
 
				+                //console.log(trackID)
			
 
				+                //TODO 多trackID的时候测试一下
			
 
				+                sendMessage = method + " " + rtspURL + "/" + trackID + " RTSP/1.0\r\nCSeq: " + CSeq + Authentication + "Transport:RTP/AVP/TCP;unicast;interleaved=" + 2 * interleaved + "-" + (2 * interleaved + 1) + "\r\n";
			
 
				+                if(sessionID == 0) {
			
 
				+                    sendMessage += "\r\n";
			
 
				+                } else {
			
 
				+                    sendMessage += "Session: " + sessionID + "\r\n\r\n";
			
 
				+                }
			
 
				+                break;
			
 
				+            case"PLAY":
			
 
				+                sendMessage = method + " " + rtspURL + " RTSP/1.0\r\nCSeq: " + CSeq + "\r\nSession: " + sessionID + "\r\n" + "Range: npt=0.000-\r\n" + Authentication;
			
 
				+                break;
			
 
				+            case"PAUSE":
			
 
				+                sendMessage = method + " " + rtspURL + " RTSP/1.0\r\nCSeq: " + CSeq + "\r\nSession: " + sessionID + "\r\n\r\n";
			
 
				+                break;
			
 
				+            case"GET_PARAMETER":
			
 
				+                sendMessage = method + " " + rtspURL + " RTSP/1.0\r\nCSeq: " + CSeq + "\r\nSession: " + sessionID + "\r\n"  + Authentication;
			
 
				+                break;
			
 
				+            default:
			
 
				+                console.log('暂不支持的RTSP信令');
			
 
				+        }
			
 
				+        //console.log(sendMessage);
			
 
				+        return sendMessage;
			
 
				+    }
			
 
				+
			
 
				+    /**
			
 
				+     * 解析RTSP信令
			
 
				+     * @param message1
			
 
				+     */
			
 
				+    function parseRtsp(message1) {
			
 
				+        let RtspResponseData = {};
			
 
				+        let cnt = 0, cnt1 = 0, ttt = null, LineTokens = null;
			
 
				+        let message = null;
			
 
				+        if (message1.search("Content-Type: application/sdp") !== -1) {
			
 
				+            let messageTok = message1.split("\r\n\r\n");
			
 
				+            message = messageTok[0]
			
 
				+        } else {
			
 
				+            message = message1
			
 
				+        }
			
 
				+        let TokenziedResponseLines = message.split("\r\n");
			
 
				+        let ResponseCodeTokens = TokenziedResponseLines[0].split(" ");
			
 
				+        if (ResponseCodeTokens.length > 2) {
			
 
				+            RtspResponseData.ResponseCode = parseInt(ResponseCodeTokens[1]);
			
 
				+            RtspResponseData.ResponseMessage = ResponseCodeTokens[2]
			
 
				+        }
			
 
				+        if (RtspResponseData.ResponseCode === RTSP_STATE.OK) {
			
 
				+            for (cnt = 1; cnt < TokenziedResponseLines.length; cnt++) {
			
 
				+                LineTokens = TokenziedResponseLines[cnt].split(":");
			
 
				+                if (LineTokens[0] === "Public") {
			
 
				+                    RtspResponseData.MethodsSupported = LineTokens[1].split(",")
			
 
				+                } else if (LineTokens[0] === "CSeq") {
			
 
				+                    RtspResponseData.CSeq = parseInt(LineTokens[1])
			
 
				+                } else if (LineTokens[0] === "Content-Type") {
			
 
				+                    RtspResponseData.ContentType = LineTokens[1];
			
 
				+                    if (RtspResponseData.ContentType.search("application/sdp") !== -1) {
			
 
				+                        RtspResponseData.SDPData = parseDescribeResponse(message1)
			
 
				+                    }
			
 
				+                } else if (LineTokens[0] === "Content-Length") {
			
 
				+                    RtspResponseData.ContentLength = parseInt(LineTokens[1])
			
 
				+                } else if (LineTokens[0] === "Content-Base") {
			
 
				+                    let ppos = TokenziedResponseLines[cnt].search("Content-Base:");
			
 
				+                    if (ppos !== -1) {
			
 
				+                        RtspResponseData.ContentBase = TokenziedResponseLines[cnt].substr(ppos + 13)
			
 
				+                    }
			
 
				+                } else if (LineTokens[0] === "Session") {
			
 
				+                    let SessionTokens = LineTokens[1].split(";");
			
 
				+                    //RtspResponseData.SessionID = parseInt(SessionTokens[0])
			
 
				+                    //console.log(SessionTokens[0])
			
 
				+                    RtspResponseData.SessionID = SessionTokens[0].trim();
			
 
				+                } else if (LineTokens[0] === "Transport") {
			
 
				+                    let TransportTokens = LineTokens[1].split(";");
			
 
				+                    for (cnt1 = 0; cnt1 < TransportTokens.length; cnt1++) {
			
 
				+                        let tpos = TransportTokens[cnt1].search("interleaved=");
			
 
				+                        if (tpos !== -1) {
			
 
				+                            let interleaved = TransportTokens[cnt1].substr(tpos + 12);
			
 
				+                            let interleavedTokens = interleaved.split("-");
			
 
				+                            if (interleavedTokens.length > 1) {
			
 
				+                                RtspResponseData.RtpInterlevedID = parseInt(interleavedTokens[0]);
			
 
				+                                RtspResponseData.RtcpInterlevedID = parseInt(interleavedTokens[1])
			
 
				+                            }
			
 
				+                        }
			
 
				+                    }
			
 
				+                } else if (LineTokens[0] === "RTP-Info") {
			
 
				+                    LineTokens[1] = TokenziedResponseLines[cnt].substr(9);
			
 
				+                    let RTPInfoTokens = LineTokens[1].split(",");
			
 
				+                    RtspResponseData.RTPInfoList = [];
			
 
				+                    for (cnt1 = 0; cnt1 < RTPInfoTokens.length; cnt1++) {
			
 
				+                        let RtpTokens = RTPInfoTokens[cnt1].split(";");
			
 
				+                        let RtpInfo = {};
			
 
				+                        for (let cnt2 = 0; cnt2 < RtpTokens.length; cnt2++) {
			
 
				+                            let poss = RtpTokens[cnt2].search("url=");
			
 
				+                            if (poss !== -1) {
			
 
				+                                RtpInfo.URL = RtpTokens[cnt2].substr(poss + 4)
			
 
				+                            }
			
 
				+                            poss = RtpTokens[cnt2].search("seq=");
			
 
				+                            if (poss !== -1) {
			
 
				+                                RtpInfo.Seq = parseInt(RtpTokens[cnt2].substr(poss + 4))
			
 
				+                            }
			
 
				+                        }
			
 
				+                        RtspResponseData.RTPInfoList.push(RtpInfo)
			
 
				+                    }
			
 
				+                }
			
 
				+            }
			
 
				+        } else if (RtspResponseData.ResponseCode === RTSP_STATE.UNAUTHORIZED) {
			
 
				+            for (cnt = 1; cnt < TokenziedResponseLines.length; cnt++) {
			
 
				+                LineTokens = TokenziedResponseLines[cnt].split(":");
			
 
				+                if (LineTokens[0] === "CSeq") {
			
 
				+                    RtspResponseData.CSeq = parseInt(LineTokens[1])
			
 
				+                } else if (LineTokens[0] === "WWW-Authenticate") {
			
 
				+                    let AuthTokens = LineTokens[1].split(",");
			
 
				+                    for (cnt1 = 0; cnt1 < AuthTokens.length; cnt1++) {
			
 
				+                        let pos = AuthTokens[cnt1].search("Digest realm=");
			
 
				+                        if (pos !== -1) {
			
 
				+                            ttt = AuthTokens[cnt1].substr(pos + 13);
			
 
				+                            let realmtok = ttt.split('"');
			
 
				+                            RtspResponseData.Realm = realmtok[1]
			
 
				+                        }
			
 
				+                        pos = AuthTokens[cnt1].search("nonce=");
			
 
				+                        if (pos !== -1) {
			
 
				+                            ttt = AuthTokens[cnt1].substr(pos + 6);
			
 
				+                            let noncetok = ttt.split('"');
			
 
				+                            RtspResponseData.Nonce = noncetok[1]
			
 
				+                        }
			
 
				+                    }
			
 
				+                }
			
 
				+            }
			
 
				+        }
			
 
				+        return RtspResponseData
			
 
				+    }
			
 
				+
			
 
				+    /**
			
 
				+     * 解析Describe信令
			
 
				+     * @param message1
			
 
				+     */
			
 
				+    function parseDescribeResponse(message1) {
			
 
				+        //console.log(message1)
			
 
				+        let SDPData = {};
			
 
				+        let Sessions = [];
			
 
				+        SDPData.Sessions = Sessions;
			
 
				+        let message = null;
			
 
				+        if (message1.search("Content-Type: application/sdp") !== -1) {
			
 
				+            let messageTok = message1.split("\r\n\r\n");
			
 
				+            message = messageTok[1]
			
 
				+        } else {
			
 
				+            message = message1
			
 
				+        }
			
 
				+        let TokenziedDescribe = message.split("\r\n");
			
 
				+        let mediaFound = false;
			
 
				+        for (let cnt = 0; cnt < TokenziedDescribe.length; cnt++) {
			
 
				+            let SDPLineTokens = TokenziedDescribe[cnt].split("=");
			
 
				+            if (SDPLineTokens.length > 0) {
			
 
				+                switch (SDPLineTokens[0]) {
			
 
				+                    case"a":
			
 
				+                        let aLineToken = SDPLineTokens[1].split(":");
			
 
				+                        if (aLineToken.length > 1) {
			
 
				+                            if (aLineToken[0] === "control") {
			
 
				+                                let pos = TokenziedDescribe[cnt].search("control:");
			
 
				+                                if (mediaFound === true) {
			
 
				+                                    if (pos !== -1) {
			
 
				+                                        SDPData.Sessions[SDPData.Sessions.length - 1].ControlURL = TokenziedDescribe[cnt].substr(pos + 8);
			
 
				+                                        let trackPos = TokenziedDescribe[cnt].search("track");
			
 
				+                                        SDPData.Sessions[SDPData.Sessions.length - 1].trackID = TokenziedDescribe[cnt].substr(trackPos);
			
 
				+                                    }
			
 
				+                                } else {
			
 
				+                                    if (pos !== -1) {
			
 
				+                                        SDPData.BaseURL = TokenziedDescribe[cnt].substr(pos + 8)
			
 
				+                                    }
			
 
				+                                }
			
 
				+                            } else if (aLineToken[0] === "rtpmap") {
			
 
				+                                //console.log(aLineToken)
			
 
				+                                let rtpmapLine = aLineToken[1].split(" ");
			
 
				+                                //console.log(rtpmapLine)
			
 
				+                                SDPData.Sessions[SDPData.Sessions.length - 1].PayloadType = rtpmapLine[0];
			
 
				+                                let MimeLine = rtpmapLine[1].split("/");
			
 
				+                                SDPData.Sessions[SDPData.Sessions.length - 1].CodecMime = MimeLine[0];
			
 
				+                                if (MimeLine.length > 1) {
			
 
				+                                    SDPData.Sessions[SDPData.Sessions.length - 1].ClockFreq = MimeLine[1]
			
 
				+                                }
			
 
				+                            } else if (aLineToken[0] === "framesize") {
			
 
				+                                let framesizeLine = aLineToken[1].split(" ");
			
 
				+                                if (framesizeLine.length > 1) {
			
 
				+                                    let framesizeinf = framesizeLine[1].split("-");
			
 
				+                                    SDPData.Sessions[SDPData.Sessions.length - 1].Width = framesizeinf[0];
			
 
				+                                    SDPData.Sessions[SDPData.Sessions.length - 1].Height = framesizeinf[1]
			
 
				+                                }
			
 
				+                            } else if (aLineToken[0] === "framerate") {
			
 
				+                                SDPData.Sessions[SDPData.Sessions.length - 1].Framerate = aLineToken[1]
			
 
				+                            } else if (aLineToken[0] === "fmtp") {
			
 
				+                                let sessLine = TokenziedDescribe[cnt].split(" ");
			
 
				+                                if (sessLine.length < 2) {
			
 
				+                                    continue
			
 
				+                                }
			
 
				+                                for (let ii = 1; ii < sessLine.length; ii++) {
			
 
				+                                    let sessToken = sessLine[ii].split(";");
			
 
				+                                    let sessprmcnt = 0;
			
 
				+                                    for (sessprmcnt = 0; sessprmcnt < sessToken.length; sessprmcnt++) {
			
 
				+                                        let ppos = sessToken[sessprmcnt].search("mode=");
			
 
				+                                        if (ppos !== -1) {
			
 
				+                                            SDPData.Sessions[SDPData.Sessions.length - 1].mode = sessToken[sessprmcnt].substr(ppos + 5)
			
 
				+                                        }
			
 
				+                                        ppos = sessToken[sessprmcnt].search("config=");
			
 
				+                                        if (ppos !== -1) {
			
 
				+                                            SDPData.Sessions[SDPData.Sessions.length - 1].config = sessToken[sessprmcnt].substr(ppos + 7);
			
 
				+                                            AACCodecInfo.config = SDPData.Sessions[SDPData.Sessions.length - 1].config;
			
 
				+                                            AACCodecInfo.clockFreq = SDPData.Sessions[SDPData.Sessions.length - 1].ClockFreq;
			
 
				+                                            AACCodecInfo.bitrate = SDPData.Sessions[SDPData.Sessions.length - 1].Bitrate
			
 
				+                                        }
			
 
				+                                        ppos = sessToken[sessprmcnt].search("sprop-vps=");
			
 
				+                                        if (ppos !== -1) {
			
 
				+                                            SDPData.Sessions[SDPData.Sessions.length - 1].VPS = sessToken[sessprmcnt].substr(ppos + 10)
			
 
				+                                        }
			
 
				+                                        ppos = sessToken[sessprmcnt].search("sprop-sps=");
			
 
				+                                        if (ppos !== -1) {
			
 
				+                                            SDPData.Sessions[SDPData.Sessions.length - 1].SPS = sessToken[sessprmcnt].substr(ppos + 10)
			
 
				+                                        }
			
 
				+                                        ppos = sessToken[sessprmcnt].search("sprop-pps=");
			
 
				+                                        if (ppos !== -1) {
			
 
				+                                            SDPData.Sessions[SDPData.Sessions.length - 1].PPS = sessToken[sessprmcnt].substr(ppos + 10)
			
 
				+                                        }
			
 
				+                                        ppos = sessToken[sessprmcnt].search("sprop-parameter-sets=");
			
 
				+                                        if (ppos !== -1) {
			
 
				+                                            let SPSPPS = sessToken[sessprmcnt].substr(ppos + 21);
			
 
				+                                            let SPSPPSTokenized = SPSPPS.split(",");
			
 
				+                                            if (SPSPPSTokenized.length > 1) {
			
 
				+                                                SDPData.Sessions[SDPData.Sessions.length - 1].SPS = SPSPPSTokenized[0];
			
 
				+                                                SDPData.Sessions[SDPData.Sessions.length - 1].PPS = SPSPPSTokenized[1]
			
 
				+                                            }
			
 
				+                                        }
			
 
				+                                    }
			
 
				+                                }
			
 
				+                            }
			
 
				+                        }
			
 
				+                        break;
			
 
				+                    case"m":
			
 
				+                        let mLineToken = SDPLineTokens[1].split(" ");
			
 
				+                        let Session = {};
			
 
				+                        Session.Type = mLineToken[0];
			
 
				+                        Session.Port = mLineToken[1];
			
 
				+                        Session.Payload = mLineToken[3];
			
 
				+                        SDPData.Sessions.push(Session);
			
 
				+                        mediaFound = true;
			
 
				+                        break;
			
 
				+                    case"b":
			
 
				+                        if (mediaFound === true) {
			
 
				+                            let bLineToken = SDPLineTokens[1].split(":");
			
 
				+                            SDPData.Sessions[SDPData.Sessions.length - 1].Bitrate = bLineToken[1]
			
 
				+                        }
			
 
				+                        break
			
 
				+                }
			
 
				+            }
			
 
				+        }
			
 
				+        return SDPData
			
 
				+    };
			
 
				+
			
 
				+    function formDigest(message) {
			
 
				+        let {Nonce, Realm} = message;
			
 
				+        //Realm = '54c415830ec4';
			
 
				+        //Nonce = 'fb01c51948704e59eb5a474b33caff8b';
			
 
				+        let user = {
			
 
				+            username: username,
			
 
				+            password: password,
			
 
				+        };
			
 
				+
			
 
				+        let hex1 = hex_md5(user.username + ":" + Realm + ":" + user.password);
			
 
				+        let hex2 = hex_md5(currentState.toUpperCase() + ":" + rtspURL);
			
 
				+        let responce = hex_md5(hex1 + ":" + Nonce + ":" + hex2);
			
 
				+        Authentication = 'Authorization: Digest username="' + user.username + '", realm="' + Realm + '", nonce="' + Nonce + '",uri="' + rtspURL + '", response="' + responce + '"\r\n' + "Accept: application/sdp\r\n" + '\r\n';
			
 
				+
			
 
				+        return  currentState.toUpperCase() + " " + rtspURL + " RTSP/1.0\r\nCSeq: " + CSeq + "\r\n" + Authentication;
			
 
				+    }
			
 
				+
			
 
				+    function getUser(rtspUrl) {
			
 
				+        let user = rtspUrl.split('rtsp://')[1].split('@')[0];
			
 
				+        let username = user.split(':')[0],
			
 
				+            password = user.split(':')[1];
			
 
				+        return {username, password};
			
 
				+    }
			
 
				+
			
 
				+    function getBitStream() {
			
 
				+        if(lastStreamTime === null) {
			
 
				+            lastStreamTime = Date.now();
			
 
				+        } else {
			
 
				+            //console.log(Date.now() - lastStreamTime)
			
 
				+            return Date.now() - lastStreamTime < 5000;
			
 
				+        }
			
 
				+    }
			
 
				+}
			
 
				+
			
 
				+export default WebSocketServer;
			
--- a/piglet/202107121640/static/camera/src/workerManager.js
+++ b/piglet/202107121640/static/camera/src/workerManager.js
@@ -0,0 +1,523 @@
 
				+import VideoMediaSource from './MediaSource.js';
			
 
				+import MP4Remux from './MP4Remux.js';
			
 
				+import IvsDrawer from './ivsDrawer.js';
			
 
				+
			
 
				+function WorkerManager() {
			
 
				+    let videoWorker;
			
 
				+    let SDPInfo;
			
 
				+    let messageArray = [];
			
 
				+    let rtpStackCount = 0;
			
 
				+    let videoElement = null;
			
 
				+    let canvasElement = null;
			
 
				+    let videoMS = null;
			
 
				+
			
 
				+    const rtpStackCheckNum = 10;
			
 
				+
			
 
				+    let codecInfo = null;
			
 
				+    let initSegmentData = null;
			
 
				+    let mediaInfo = {
			
 
				+        id: 1,
			
 
				+        samples: null,
			
 
				+        baseMediaDecodeTime: 0
			
 
				+    };
			
 
				+    let numBox = 1;
			
 
				+    let mediaSegNum = 0; //用于记录缓存的box个数
			
 
				+    let mediaFrameData = null; //用于缓存未喂入mse的box
			
 
				+    let mediaFrameSize = 0; //mediaFrameData的大小
			
 
				+    let preBaseDecodeTime = 0; //上一个解码时间
			
 
				+    let curBaseDecodeTime = 0; //从第一帧到当前帧的持续时间
			
 
				+    let mediaSegmentData = null; //MP4化的数据
			
 
				+    let sequenseNum = 1;
			
 
				+
			
 
				+    let mp4Remux;
			
 
				+
			
 
				+    let firstTimeStamp = null; //第一个视频帧的时间戳
			
 
				+    let SEIinfo = null;
			
 
				+    let ivsDrawer = null;
			
 
				+    let info = null;
			
 
				+    let MAX_INFO = 25; // 限制info最大长度
			
 
				+    let startDrawIVS = false;
			
 
				+    let onCanplayCallback = null;
			
 
				+    let ROIdrawer = null;
			
 
				+
			
 
				+    let initialCompleted = false;
			
 
				+    let onInitialCompletedCallback = null;
			
 
				+    let frameRate = 25; //默认25
			
 
				+    let resizeObserver = null;
			
 
				+    function constructor() {
			
 
				+
			
 
				+    }
			
 
				+
			
 
				+    constructor.prototype = {
			
 
				+        init(video,canvas,ROIElement) {
			
 
				+            videoWorker = new Worker('./src/videoWorker.js');
			
 
				+            videoWorker.onmessage = videoWorkerMessage;
			
 
				+            videoElement = video;
			
 
				+            canvasElement = canvas;
			
 
				+
			
 
				+            mp4Remux = new MP4Remux();
			
 
				+            mp4Remux.init();
			
 
				+
			
 
				+            SEIinfo = new IVSQueue();
			
 
				+            info = new LruCache(MAX_INFO);
			
 
				+            ivsDrawer = new IvsDrawer(canvasElement);
			
 
				+            ROIdrawer = ROIElement;
			
 
				+
			
 
				+            resizeObserver = new ResizeObserver( entries => {
			
 
				+                ivsDrawer.cover(videoElement);
			
 
				+                ROIdrawer.cover(videoElement);
			
 
				+                ROIdrawer.redrawROI();
			
 
				+            });
			
 
				+            resizeObserver.observe(videoElement);
			
 
				+        },
			
 
				+
			
 
				+        sendSdpInfo(SDPinfo) {
			
 
				+            SDPInfo = SDPinfo;
			
 
				+            console.log(SDPinfo)
			
 
				+            let message = {
			
 
				+                type: "sdpInfo",
			
 
				+                data: {
			
 
				+                    sdpInfo: SDPInfo
			
 
				+                }
			
 
				+            };
			
 
				+            videoWorker.postMessage(message);
			
 
				+            //Todo:暂时采用第一路视频的帧率
			
 
				+            if(SDPInfo.length && SDPInfo[0].Framerate) {
			
 
				+                frameRate = SDPinfo[0].Framerate;
			
 
				+            }
			
 
				+        },
			
 
				+
			
 
				+        parseRtpData(rtspinterleave, rtpheader, rtpPacketArray) {
			
 
				+            // console.log(rtspinterleave)
			
 
				+            // console.log( rtpheader)
			
 
				+            // //console.log(rtpPacketArray)
			
 
				+            // console.log(rtpheader[3])
			
 
				+
			
 
				+            let mediaType = rtspinterleave[1];
			
 
				+            let idx = parseInt(mediaType / 2, 10);
			
 
				+            let markerBitHex = 128;
			
 
				+            let message = {
			
 
				+                type: "rtpData",
			
 
				+                data: {rtspInterleave: rtspinterleave, header: rtpheader, payload: rtpPacketArray}
			
 
				+            };
			
 
				+            //console.log(rtspinterleave)
			
 
				+            //console.log('idx: ',idx)
			
 
				+
			
 
				+            if(idx !== 0) {
			
 
				+                console.log('idx: ',rtspinterleave);
			
 
				+                //console.log(SDPInfo)
			
 
				+                return;
			
 
				+            }
			
 
				+            switch (SDPInfo[idx].codecName) {
			
 
				+                case"H264":
			
 
				+                    messageArray.push(message);
			
 
				+                    if (rtpStackCount >= rtpStackCheckNum || (rtpheader[1] & markerBitHex) === markerBitHex) {
			
 
				+                        if((rtpheader[1] & markerBitHex) === markerBitHex) {
			
 
				+                            //onsole.log('遇到终止位: ' + rtpheader[1])
			
 
				+                        }
			
 
				+                        let sendMessage = {type: "rtpDataArray", data: messageArray};
			
 
				+                        if (videoWorker) {
			
 
				+                            videoWorker.postMessage(sendMessage)
			
 
				+                        }
			
 
				+                        sendMessage = null;
			
 
				+                        messageArray = [];
			
 
				+                        rtpStackCount = 0
			
 
				+                        //console.log('1111111111')
			
 
				+                    } else {
			
 
				+                        rtpStackCount++
			
 
				+                    }
			
 
				+                    break;
			
 
				+                default:
			
 
				+            }
			
 
				+        },
			
 
				+
			
 
				+        /**
			
 
				+         * 更新需要绘制的其它信息
			
 
				+         * @param obj
			
 
				+         */
			
 
				+        updateInfo(obj) {
			
 
				+            //if((obj.name !== '') && (obj.name !== undefined) && (obj.name !== null)) {
			
 
				+            info.set(obj.id, obj.name);
			
 
				+            //}
			
 
				+        },
			
 
				+
			
 
				+        setEventCallBack(event, callback) {
			
 
				+            switch (event) {
			
 
				+                case 'canplay':
			
 
				+                    onCanplayCallback = callback;
			
 
				+                    break;
			
 
				+                case 'initialCompleted':
			
 
				+                    onInitialCompletedCallback = callback;
			
 
				+                    break;
			
 
				+                case 'ROIFinished':
			
 
				+                    ROIdrawer.setROIFinishedCallback(callback);
			
 
				+                    break;
			
 
				+                default:
			
 
				+                    break;
			
 
				+            }
			
 
				+        },
			
 
				+
			
 
				+        setROIDrawer(ROIElement) {
			
 
				+            ROIdrawer = ROIElement;
			
 
				+        },
			
 
				+
			
 
				+        terminate() {
			
 
				+            videoWorker.terminate();
			
 
				+            ivsDrawer.terminate();
			
 
				+            resizeObserver && resizeObserver.unobserve(videoElement);
			
 
				+            resizeObserver = null;
			
 
				+            info.clear();
			
 
				+            startDrawIVS = false;
			
 
				+            window.onresize = null;
			
 
				+            if(videoMS) {
			
 
				+                videoMS.close();
			
 
				+                videoMS = null;
			
 
				+            }
			
 
				+        }
			
 
				+    }
			
 
				+
			
 
				+    return new constructor();
			
 
				+
			
 
				+    function videoWorkerMessage(event) {
			
 
				+        let videoMessage = event.data;
			
 
				+        let type = videoMessage.type;
			
 
				+        //console.log(videoMessage.data)
			
 
				+        switch (type) {
			
 
				+            // case 'codecInfo': //设置codecType
			
 
				+            //     break;
			
 
				+            // case 'initSegment': //第一个buffer，设置SPS等
			
 
				+            case 'videoInit'://合并codecInfo和initSegment
			
 
				+                console.log(videoMessage)
			
 
				+                codecInfo = videoMessage.data.codecInfo;
			
 
				+                //console.log(videoMessage.data)
			
 
				+                initSegmentData = mp4Remux.initSegment(videoMessage.data.initSegmentData);
			
 
				+//console.log(initSegmentData)
			
 
				+                videoMS = new VideoMediaSource(videoElement);
			
 
				+                videoMS.CodecInfo = codecInfo;
			
 
				+                videoMS.InitSegment = initSegmentData;
			
 
				+                //console.log(videoMS.CodecInfo, videoMS.InitSegment)
			
 
				+                videoMS.init();
			
 
				+                videoMS.onCanplayCallback(()=>{
			
 
				+                    ivsDrawer.cover(videoElement);
			
 
				+                    onCanplayCallback && onCanplayCallback();
			
 
				+                    if(!initialCompleted) {
			
 
				+                        ROIdrawer.cover(videoElement);
			
 
				+                        onInitialCompletedCallback && onInitialCompletedCallback();
			
 
				+                        initialCompleted = true;
			
 
				+                    }
			
 
				+                });
			
 
				+                break;
			
 
				+            case 'firstvideoTimeStamp':
			
 
				+                firstTimeStamp = videoMessage.data;
			
 
				+
			
 
				+                videoMS.setFirstTimeStamp(firstTimeStamp);
			
 
				+                //videoMS.setDurationChangeCallBack(drawIVS);
			
 
				+
			
 
				+                console.log('first frame timestamp: ', firstTimeStamp);
			
 
				+                startDrawIVS = true;
			
 
				+                window.requestAnimationFrame(draw);
			
 
				+                break;
			
 
				+            case 'videoTimeStamp'://时间戳，用于智能同步
			
 
				+                //videoMS.setFirstTimeStamp(videoMessage.data);
			
 
				+                //console.log('frame timestamp: ', videoMessage.data);
			
 
				+                //console.log('npt: ', ( videoMessage.data - firstTimeStamp)/90000)
			
 
				+                break;
			
 
				+            case 'mediaSample': //用于设置baseMediaDecodeTime
			
 
				+                if(mediaInfo.samples == null) {
			
 
				+                    mediaInfo.samples = new Array(numBox);
			
 
				+                }
			
 
				+                //console.log('frameDuration: ' + videoMessage.data.frameDuration)
			
 
				+                curBaseDecodeTime += videoMessage.data.frameDuration;
			
 
				+
			
 
				+                mediaInfo.samples[mediaSegNum++] = videoMessage.data;
			
 
				+                break;
			
 
				+            case 'videoRender': //视频数据
			
 
				+                //缓存该segment数据
			
 
				+                let tempBuffer = new Uint8Array(videoMessage.data.length + mediaFrameSize);
			
 
				+                if(mediaFrameSize !== 0) {
			
 
				+                    tempBuffer.set(mediaFrameData);
			
 
				+                }
			
 
				+                //console.log(videoMessage)
			
 
				+                tempBuffer.set(videoMessage.data, mediaFrameSize);
			
 
				+                mediaFrameData = tempBuffer;
			
 
				+                mediaFrameSize = mediaFrameData.length;
			
 
				+
			
 
				+                if(mediaSegNum % numBox === 0 && mediaSegNum !== 0) {
			
 
				+                    if (sequenseNum === 1) {
			
 
				+                        mediaInfo.baseMediaDecodeTime = 0
			
 
				+                    } else {
			
 
				+                        mediaInfo.baseMediaDecodeTime = preBaseDecodeTime;
			
 
				+                    }
			
 
				+                    preBaseDecodeTime = curBaseDecodeTime;
			
 
				+                    mediaSegmentData = mp4Remux.mediaSegment(sequenseNum, mediaInfo, mediaFrameData);
			
 
				+                    sequenseNum++;
			
 
				+                    mediaSegNum = 0;
			
 
				+                    mediaFrameData = null;
			
 
				+                    mediaFrameSize = 0;
			
 
				+
			
 
				+                    if (videoMS !== null) {
			
 
				+                        videoMS.setMediaSegment(mediaSegmentData)
			
 
				+                    } else {
			
 
				+
			
 
				+                    }
			
 
				+                }
			
 
				+                break;
			
 
				+            case 'YUVData'://FFMPEG解码的数据
			
 
				+                //console.log(videoMessage.data)
			
 
				+                //draw(videoMessage.data);
			
 
				+                //yuv2canvas(videoMessage.data.data, videoMessage.data.width, videoMessage.data.height,canvasElement)
			
 
				+
			
 
				+                break;
			
 
				+            case 'SEI': //处理SEI信息
			
 
				+                //console.log('SEI timestamp: ', videoMessage.data.timestamp);
			
 
				+                //console.log('SEI-npt: ', (videoMessage.data.timestamp - firstTimeStamp)/90000)
			
 
				+                if(videoMessage.data.ivs !== null) {
			
 
				+                    let ivs = [];
			
 
				+                    videoMessage.data.ivs.map((content, k) => {
			
 
				+                        if(content.state) { //state=1, 绘制该信息
			
 
				+                            ivs.push(content);
			
 
				+                        }else { //state=0, 清除info中对应的id:name
			
 
				+                            // let id = content.id;
			
 
				+                            // console.log('删除', id, info[id]);
			
 
				+                            // delete info[id];
			
 
				+                            // console.log(info)
			
 
				+                        }
			
 
				+                    });
			
 
				+
			
 
				+                    //console.log('PUSH SEI: ', videoMessage.data.timestamp)
			
 
				+                    SEIinfo.push(videoMessage.data.timestamp, ivs);
			
 
				+
			
 
				+                    //console.log(videoMessage.data.timestamp - lastTime)
			
 
				+                    //lastTime = videoMessage.data.timestamp;
			
 
				+                }
			
 
				+                //console.log('timestamp: ', videoMessage.data.timestamp)
			
 
				+                //console.log(SEIinfo)
			
 
				+                break;
			
 
				+            default:
			
 
				+                console.log('暂不支持其他类型');
			
 
				+                break;
			
 
				+        }
			
 
				+    }
			
 
				+
			
 
				+    function draw() {
			
 
				+        let timestamp = parseInt((videoElement.currentTime.toFixed(2) * 90000).toFixed(0)) + firstTimeStamp + 90000/frameRate;//
			
 
				+        drawIVS(timestamp);
			
 
				+        if(startDrawIVS) {
			
 
				+            window.requestAnimationFrame(draw);
			
 
				+        }
			
 
				+    }
			
 
				+
			
 
				+    /**
			
 
				+     * 根据时间戳获取相应的ivs信息
			
 
				+     * @param timestamp 当前帧的时间戳
			
 
				+     * @returns {*} ivs信息
			
 
				+     */
			
 
				+    function getIVS(timestamp) {
			
 
				+        let preNode = null;
			
 
				+        let nextNode = null;
			
 
				+
			
 
				+        preNode = SEIinfo.shift();
			
 
				+        nextNode = SEIinfo.top();
			
 
				+        while((preNode !== undefined) && (preNode !== null)) {
			
 
				+            if(preNode[0] > timestamp) {
			
 
				+                SEIinfo.unshift(preNode);
			
 
				+                //console.log('SEI时间大于video: ', preNode[0], timestamp);
			
 
				+                return null;
			
 
				+            } else if(preNode[0] === timestamp) {
			
 
				+                return preNode;
			
 
				+            } else {
			
 
				+
			
 
				+                if(nextNode === undefined || nextNode === null) {
			
 
				+                    console.log('last ivs info: ', timestamp, preNode[0], SEIinfo);
			
 
				+                    //console.log(preNode[0] - lastTime);
			
 
				+                    //lastTime = preNode[0];
			
 
				+                    if(timestamp - preNode[0] < 90000/frameRate) {
			
 
				+                        return preNode;//最后一个node
			
 
				+                    }
			
 
				+                    return null;
			
 
				+                }
			
 
				+                if(nextNode[0] > timestamp) {
			
 
				+                    // console.log('video time: ', timestamp, preNode[0], SEIinfo.length());
			
 
				+                    // if(SEIinfo.length()) {
			
 
				+                    //     SEIinfo.map((v, k)=>{
			
 
				+                    //         console.log(v);
			
 
				+                    //     });
			
 
				+                    // }
			
 
				+                    //console.log(preNode[0] - lastTime);
			
 
				+                    //lastTime = preNode[0];
			
 
				+                    return preNode;
			
 
				+                } else if(nextNode[0] === timestamp){
			
 
				+
			
 
				+                    nextNode = SEIinfo.shift();
			
 
				+                    //console.log('video time: ', timestamp, nextNode[0], SEIinfo);
			
 
				+                    //console.log(nextNode[0] - lastTime);
			
 
				+                    //lastTime = nextNode[0];
			
 
				+                    return nextNode;
			
 
				+                } else {
			
 
				+                    preNode = SEIinfo.shift();
			
 
				+                    nextNode = SEIinfo.top();
			
 
				+                }
			
 
				+            }
			
 
				+        }
			
 
				+        return null;
			
 
				+    }
			
 
				+
			
 
				+    /**
			
 
				+     * 绘制智能信息
			
 
				+     * @param timestamp
			
 
				+     */
			
 
				+    function drawIVS(timestamp) {
			
 
				+        let data = getIVS(timestamp);
			
 
				+        if(data === undefined || data === null) {
			
 
				+            //清空画布
			
 
				+            //ivsDrawer.clearCanvas();
			
 
				+            if(!SEIinfo.length() || (SEIinfo.length() && (SEIinfo.list[0][0] - timestamp) > 90000/frameRate)) {
			
 
				+                ivsDrawer.clearCanvas();
			
 
				+            }
			
 
				+        }else {
			
 
				+            //console.log('GET SEI: ', data[0], ' videoTimestamp', timestamp);
			
 
				+            data = data[1];
			
 
				+            //console.log(info.map.length)
			
 
				+            if(info.map.length > MAX_INFO) {
			
 
				+                console.log('info length: ', info.map.length);
			
 
				+            }
			
 
				+            //获取鹰眼信息
			
 
				+            data.map((content, k) =>{
			
 
				+                let result = info.get(content.id);
			
 
				+                if(result !== undefined && result !== null) {
			
 
				+                    data[k].text = result.value;
			
 
				+                }
			
 
				+            });
			
 
				+            ivsDrawer.draw(data, timestamp);
			
 
				+        }
			
 
				+    }
			
 
				+}
			
 
				+
			
 
				+function ElementResizeCallback(someElement, callback) {
			
 
				+    const ro = new ResizeObserver( entries => {
			
 
				+        // for (let entry of entries) {
			
 
				+        //     const cr = entry.contentRect;
			
 
				+        //     console.log('Element:', entry.target);
			
 
				+        //     console.log(`Element size: ${cr.width}px x ${cr.height}px`);
			
 
				+        // }
			
 
				+        callback();
			
 
				+    });
			
 
				+    ro.observe(someElement);
			
 
				+}
			
 
				+
			
 
				+function yuv2canvas(yuv, width, height, canvas) {
			
 
				+
			
 
				+    canvas.width = width;
			
 
				+    canvas.height = height;
			
 
				+
			
 
				+    var context    = canvas.getContext("2d");
			
 
				+    var output     = context.createImageData(width, height);
			
 
				+    var outputData = output.data;
			
 
				+
			
 
				+    var yOffset = 0;
			
 
				+    var uOffset = width * height;
			
 
				+    var vOffset = width * height + (width*height)/4;
			
 
				+    for (var h=0; h<height; h++) {
			
 
				+        for (var w=0; w<width; w++) {
			
 
				+            var ypos = w + h * width + yOffset;
			
 
				+
			
 
				+            var upos = (w>>1) + (h>>1) * width/2 + uOffset;
			
 
				+            var vpos = (w>>1) + (h>>1) * width/2 + vOffset;
			
 
				+
			
 
				+            var Y = yuv[ypos];
			
 
				+            var U = yuv[upos] - 128;
			
 
				+            var V = yuv[vpos] - 128;
			
 
				+
			
 
				+            var R =  (Y + 1.371*V);
			
 
				+            var G =  (Y - 0.698*V - 0.336*U);
			
 
				+            var B =  (Y + 1.732*U);
			
 
				+
			
 
				+            var outputData_pos = w*4 + width*h*4;
			
 
				+            outputData[0+outputData_pos] = R;
			
 
				+            outputData[1+outputData_pos] = G;
			
 
				+            outputData[2+outputData_pos] = B;
			
 
				+            outputData[3+outputData_pos] = 255;
			
 
				+        }
			
 
				+    }
			
 
				+
			
 
				+    context.putImageData(output, 0, 0);
			
 
				+}
			
 
				+
			
 
				+class IVSQueue {
			
 
				+    constructor() {
			
 
				+        this.list = [];
			
 
				+    }
			
 
				+
			
 
				+    push(timestamp, ivs) {
			
 
				+        for (let i = 0, len = this.list.length; i < len; i++) {
			
 
				+            if(this.list[i][0] === timestamp) {
			
 
				+                let oldIvs = this.list[i][1];
			
 
				+                Array.prototype.push.apply(oldIvs, ivs);
			
 
				+                this.list[i][1] = oldIvs;
			
 
				+                return;
			
 
				+            }
			
 
				+        }
			
 
				+        this.list.push([timestamp, ivs]);
			
 
				+    }
			
 
				+
			
 
				+    shift() {
			
 
				+        let tmp = this.list.shift();
			
 
				+        return tmp;
			
 
				+    }
			
 
				+
			
 
				+    unshift(node) {
			
 
				+        this.list.unshift(node);
			
 
				+    }
			
 
				+
			
 
				+    top() {
			
 
				+        let tmp = this.list[0];
			
 
				+        return tmp;
			
 
				+    }
			
 
				+
			
 
				+    length() {
			
 
				+        return this.list.length;
			
 
				+    }
			
 
				+
			
 
				+    map(v,k) {
			
 
				+        return this.list.map(v,k);
			
 
				+    }
			
 
				+}
			
 
				+
			
 
				+class LruCache {
			
 
				+    constructor(limit) {
			
 
				+        this.limit = limit || 20;
			
 
				+        this.map = [];
			
 
				+    }
			
 
				+    get(key) {
			
 
				+        return this._search(key);
			
 
				+    }
			
 
				+    set(key, value) {
			
 
				+        let result  = this._search(key);
			
 
				+        if(!result) {
			
 
				+            this.map.unshift({
			
 
				+                key: key,
			
 
				+                value: value
			
 
				+            });
			
 
				+            if(this.map.length > this.limit) {
			
 
				+                this.map.pop();
			
 
				+            }
			
 
				+        }
			
 
				+    }
			
 
				+
			
 
				+    //每次查找将该元素置于队首
			
 
				+    _search(key) {
			
 
				+        for(let i = 0, length = this.map.length; i < length; i++) {
			
 
				+            if(this.map[i].key === key) {
			
 
				+                let head = this.map.splice(i, 1);
			
 
				+                this.map.unshift(head[0]);
			
 
				+                return head[0];
			
 
				+            }
			
 
				+        }
			
 
				+        return null;
			
 
				+    }
			
 
				+
			
 
				+    clear() {
			
 
				+        this.map = [];
			
 
				+    }
			
 
				+}
			
 
				+export default WorkerManager;
			
--- a/piglet/202107121640/static/css/app.css
+++ b/piglet/202107121640/static/css/app.css
--- a/piglet/202107121640/static/fonts/element-icons.6f0a763.ttf
+++ b/piglet/202107121640/static/fonts/element-icons.6f0a763.ttf
--- a/piglet/202107121640/static/img/favicon.ico
+++ b/piglet/202107121640/static/img/favicon.ico
--- a/piglet/202107121640/static/img/login_bg.144e19d.jpg
+++ b/piglet/202107121640/static/img/login_bg.144e19d.jpg
--- a/piglet/202107121640/static/img/pig.f438872.png
+++ b/piglet/202107121640/static/img/pig.f438872.png
--- a/piglet/202107121640/static/js/0.js
+++ b/piglet/202107121640/static/js/0.js
--- a/piglet/202107121640/static/js/1.js
+++ b/piglet/202107121640/static/js/1.js
--- a/piglet/202107121640/static/js/10.js
+++ b/piglet/202107121640/static/js/10.js
--- a/piglet/202107121640/static/js/11.js
+++ b/piglet/202107121640/static/js/11.js
--- a/piglet/202107121640/static/js/12.js
+++ b/piglet/202107121640/static/js/12.js
--- a/piglet/202107061823/static/js/12.js
+++ b/piglet/202107061823/static/js/12.js
--- a/piglet/202107061823/static/js/13.js
+++ b/piglet/202107061823/static/js/13.js
--- a/piglet/202107121640/static/js/15.js
+++ b/piglet/202107121640/static/js/15.js
--- a/piglet/202107061823/static/js/16.js
+++ b/piglet/202107061823/static/js/16.js
--- a/piglet/202107061823/static/js/17.js
+++ b/piglet/202107061823/static/js/17.js
--- a/piglet/202107121640/static/js/18.js
+++ b/piglet/202107121640/static/js/18.js
--- a/piglet/202107121640/static/js/19.js
+++ b/piglet/202107121640/static/js/19.js
--- a/piglet/202107061823/static/js/1.js
+++ b/piglet/202107061823/static/js/1.js
--- a/piglet/202107121640/static/js/20.js
+++ b/piglet/202107121640/static/js/20.js
--- a/piglet/202107121640/static/js/21.js
+++ b/piglet/202107121640/static/js/21.js
--- a/piglet/202107121640/static/js/22.js
+++ b/piglet/202107121640/static/js/22.js
--- a/piglet/202107121640/static/js/23.js
+++ b/piglet/202107121640/static/js/23.js
--- a/piglet/202107121640/static/js/24.js
+++ b/piglet/202107121640/static/js/24.js
--- a/piglet/202107121640/static/js/25.js
+++ b/piglet/202107121640/static/js/25.js
--- a/piglet/202107121640/static/js/26.js
+++ b/piglet/202107121640/static/js/26.js
--- a/piglet/202107121640/static/js/27.js
+++ b/piglet/202107121640/static/js/27.js
--- a/piglet/202107121640/static/js/28.js
+++ b/piglet/202107121640/static/js/28.js
--- a/piglet/202107121640/static/js/29.js
+++ b/piglet/202107121640/static/js/29.js
--- a/piglet/202107061823/static/js/2.js
+++ b/piglet/202107061823/static/js/2.js
--- a/piglet/202107121640/static/js/30.js
+++ b/piglet/202107121640/static/js/30.js
--- a/piglet/202107121640/static/js/31.js
+++ b/piglet/202107121640/static/js/31.js
--- a/piglet/202107121640/static/js/32.js
+++ b/piglet/202107121640/static/js/32.js
--- a/piglet/202107121640/static/js/33.js
+++ b/piglet/202107121640/static/js/33.js
--- a/piglet/202107121640/static/js/34.js
+++ b/piglet/202107121640/static/js/34.js
--- a/piglet/202107061823/static/js/35.js
+++ b/piglet/202107061823/static/js/35.js
--- a/piglet/202107121640/static/js/36.js
+++ b/piglet/202107121640/static/js/36.js
--- a/piglet/202107121640/static/js/37.js
+++ b/piglet/202107121640/static/js/37.js
--- a/piglet/202107121640/static/js/38.js
+++ b/piglet/202107121640/static/js/38.js
--- a/piglet/202107061823/static/js/36.js
+++ b/piglet/202107061823/static/js/36.js
--- a/piglet/202107121640/static/js/4.js
+++ b/piglet/202107121640/static/js/4.js
--- a/piglet/202107061823/static/js/37.js
+++ b/piglet/202107061823/static/js/37.js
--- a/piglet/202107061823/static/js/38.js
+++ b/piglet/202107061823/static/js/38.js
--- a/piglet/202107061823/static/js/39.js
+++ b/piglet/202107061823/static/js/39.js
--- a/piglet/202107061823/static/js/40.js
+++ b/piglet/202107061823/static/js/40.js
--- a/piglet/202107061823/static/js/41.js
+++ b/piglet/202107061823/static/js/41.js
--- a/piglet/202107061823/static/js/42.js
+++ b/piglet/202107061823/static/js/42.js
--- a/piglet/202107121640/static/js/46.js
+++ b/piglet/202107121640/static/js/46.js
--- a/piglet/202107121640/static/js/47.js
+++ b/piglet/202107121640/static/js/47.js
--- a/piglet/202107061823/static/js/45.js
+++ b/piglet/202107061823/static/js/45.js
--- a/piglet/202107121640/static/js/49.js
+++ b/piglet/202107121640/static/js/49.js
--- a/piglet/202107061823/static/js/4.js
+++ b/piglet/202107061823/static/js/4.js
--- a/piglet/202107061823/static/js/47.js
+++ b/piglet/202107061823/static/js/47.js
--- a/piglet/202107061823/static/js/48.js
+++ b/piglet/202107061823/static/js/48.js
--- a/piglet/202107061823/static/js/49.js
+++ b/piglet/202107061823/static/js/49.js
--- a/piglet/202107061823/static/js/50.js
+++ b/piglet/202107061823/static/js/50.js
--- a/piglet/202107061823/static/js/51.js
+++ b/piglet/202107061823/static/js/51.js
--- a/piglet/202107061823/static/js/52.js
+++ b/piglet/202107061823/static/js/52.js
--- a/piglet/202107061823/static/js/53.js
+++ b/piglet/202107061823/static/js/53.js
--- a/piglet/202107061823/static/js/54.js
+++ b/piglet/202107061823/static/js/54.js
--- a/piglet/202107061823/static/js/55.js
+++ b/piglet/202107061823/static/js/55.js
--- a/piglet/202107061823/static/js/56.js
+++ b/piglet/202107061823/static/js/56.js
--- a/piglet/202107061823/static/js/5.js
+++ b/piglet/202107061823/static/js/5.js
--- a/piglet/202107061823/static/js/57.js
+++ b/piglet/202107061823/static/js/57.js
--- a/piglet/202107061823/static/js/58.js
+++ b/piglet/202107061823/static/js/58.js
		`@@ -1 +0,0 @@`
		`-webpackJsonp([72],{NDIb:function(l,e,u){"use strict";Object.defineProperty(e,"__esModule",{value:!0});var n=u("VU/8")(null,null,!1,null,null,null);e.default=n.exports}});`
		`@@ -1 +0,0 @@`
		`-webpackJsonp([73],{"/DMR":function(l,e,u){"use strict";Object.defineProperty(e,"__esModule",{value:!0});var n=u("VU/8")(null,null,!1,null,null,null);e.default=n.exports}});`
		`@@ -1 +0,0 @@`
		`-webpackJsonp([74],{oSbz:function(l,e,u){"use strict";Object.defineProperty(e,"__esModule",{value:!0});var n=u("VU/8")(null,null,!1,null,null,null);e.default=n.exports}});`