rrWeb整体方案
1、整体流程
1.1、流程图
生产负载调用rrWeb情况
前端调用保存录制使用固定地址，调用预生产服务进行保存
定时任务执行，设置地址配置为预生产地址
1.2、功能说明
1.2.1 录制保存功能
- 地址
/rrWeb/saveRrWeb
- 功能
首次录制，生成本次录制的唯一id
同一订单可能存在多个录制id
录制id在当前录制流程中唯一，关闭录制或关闭浏览器重新进入开始录制，会生成新的id
使用Redis记录录制id每次片段的顺序
保存数据到backTrackRecord、backTrackVideo表
保存录制数据到服务器中，保存目录/data/service/rrWeb/sava/录制id/片段数据
/data/service/rrWeb目录在sys_config表中配置
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1.2.2 定时合并数据
- 地址
/job/convertVideo
- 功能
查询backTrackRecord表中未合并过的数据
获取对应录制id
根据录制id获取/data/service/rrWeb/sava/录制id/目录下所有的片段数据
根据片段录制顺序，读取文件内容，写到/data/service/rrWeb/录制id.txt文件下
更新backTrackRecord状态
1.2.3 Linux下定时转换视频
- 地址
无
- 功能
将/data/service/rrWeb/下对应的文件备份到history目录
使用rrvideo命令，将对应文件转换为视频，保存到/data/service/rrWeb/mp4下
转换过程超过2分钟的停止
转换完成删除/data/service/rrWeb/下对应文件
- 配置脚本执行
# 打开定时任务配置文件
crontab -e
# 在配置文件中写入定时任务的操作, 这里就是指定每天1点10分定时执行脚本，并把执行脚本的日志写入文件 crontabLoad.log
10 1 * * * sh /data/service/rrWeb/start.sh > /data/service/rrWeb/crontabLoad.log 2>&1
- 脚本
#!/bin/bash
# 这个很重要，不引用环境变量，脚本执行rrvideo时会报错找不到命令
source /etc/profile
#set -x
INPUT_DIR=/data/service/rrWeb
OUTPUT_DIR=/data/service/rrWeb/mp4
HISTORY_DIR=/data/service/rrWeb/history
TIMEOUT=120 # 2分钟超时
time=$(date -d "7 minute ago" +"%Y-%m-%d %H:%M:%S")
echo "${time} :开始执行rrWeb转视频"
files=$(ls $INPUT_DIR/*.txt | wc -l);
if [ "$files" != "0" ]; then
for f in $INPUT_DIR/*.txt; do
filename=$(basename "$f")
echo "当前转换filename：${filename}"
# 复制到history目录
cp "$f" "$HISTORY_DIR/$filename"
nohup rrvideo --input "$f" --config "$INPUT_DIR/rrvideo.config" --output "$OUTPUT_DIR/${filename%.*}.mp4" &
pid=$!
timeout=$TIMEOUT
while ps -p $pid > /dev/null; do
sleep 1
timeout=$((timeout-1))
if [ $timeout -eq 0 ]; then
kill -9 $pid
echo "killed ${filename}"
break
fi
done
if [ $timeout -ne 0 ]; then
# 删除txt文件
rm "$f"
fi
echo "Finished $f to $filename.mp4"
done
else
echo "没有要转换的文件"
fi
# 关闭无头浏览器进程
PID=`ps -ef | grep puppeteer | awk '{print $2}'`
echo "得到进程ID：${PID}"
echo "结束进程"
for id in ${PID}
do
kill -9 ${id}
echo "killed ${id}"
done
echo "结束进程完成"
echo "执行rrWeb转视频结束"
rrvideo.config
{
"width":1280,
"height":720,
"speed": 1,
"skipInactive": true,
"mouseTail": {
"strokeStyle": "green",
"lineWidth": 2
},
"startDelayTime": 1000
}
1.2.4 定时上传OBS
- 地址
/job/uploadVideoToObs
- 功能
查询backTrackVideo表中未上传OBS的数据
3天内还未上传到OBS，进行告警
根据录制id获取/data/service/rrWeb/map目录下的视频文件
获取视频流，上传OBS
更新backTrackVideo表OBS视频地址
2、rrWeb环境搭建
2.1、安装nodejs
2.1.1、下载node.js
node官网下载地址：https://nodejs.org/en/download/
下载对应的包：node-v14.17.6-linux-x64.tar.gz
或者使用命令下载
wget https://nodejs.org/download/release/v14.17.6/node-v14.17.6-linux-x64.tar.gz
2.1.2、上传文件到服务器
将文件放到预生产/opt/nodejs下
2.1.3、安装
# 解压文件
tar zxvf node-v14.17.6-linux-x64.tar.gz
## 更改名称
mv node-v14.17.6-linux-x64 node14.17.6
## 赋予执行权限
chmod 777 node14.17.6/
# 配置环境变量
vim /etc/profile
# 在文件中增加配置，保存后退出
export NODE_HOME=/opt/nodejs/node14.17.6
export PATH=$NODE_HOME/bin:$PATH
# 配置生效
source /etc/profile
#验证是否安装成功
node -v
npm -v
2.2、ffmpeg安装
2.2.1、下载
ffmpeg官方网站：FFmpeg ；在官方网站内也可以下载ffmpeg的源码以及ffmpeg编译好的库文件；官方网站首页如下图；点击下图绿色按键"Download"可以进入ffmpeg的下载页面；在官方网站首页的左侧有几个子目录，其中包含下载目录Download和使用帮助文档目录Documentation。
在点击Download后可以进入ffmpeg的下载页面，如下图；通过点击Download Source Code就可以下载最新的ffmpeg源代码；也可以下载Linux/Windows/MacOS这三种平台下ffmpeg的可执行程序和lib库文件，如下图红色框。
2.2.2、ffmpeg的安装
cd /data/service
# 创建文件夹
mkdir ffmpeg
# 上传下载的文件ffmpeg-release-i686-static.tar到此文件夹下
# 解压
tar -xvf ffmpeg-release-i686-static.tar
## 更改名称
mv ffmpeg-6.0-i686-static ffmpeg
cd ffmpeg
# 查看版本
./ffmpeg -version
# 配置环境变量
vim /etc/profile
# 在文件中增加配置，保存后退出
export PATH=$PATH:/data/service/ffmpeg/ffmpeg
# 配置生效
source /etc/profile
# 创建软连接
ln -s /data/service/ffmpeg/ffmpeg ffmpeg
# 查看环境变量是否生效
ffmpeg -version
2.3、rrvideo安装
# 全局安装rrvideo
npm i -g rrvideo --unsafe-perm=true
# 到puppeteer目录
cd /opt/nodejs/node14.17.6/lib/node_modules/rrvideo/node_modules/puppeteer
# 安装依赖
npm install
# 安装成功后执行命令转换视频
rrvideo --input rrWeb_48234910066649106.txt --output rrWeb_48234910066649106.mp4
# 报错
Failed to transform this session.
Error: Failed to launch the browser process!
/opt/nodejs/node14.17.6/lib/node_modules/rrvideo/node_modules/puppeteer/.local-chromium/linux-818858/chrome-linux/chrome: error while loading shared libraries: libX11-xcb.so.1: cannot open shared object file: No such file or directory
TROUBLESHOOTING: https://github.com/puppeteer/puppeteer/blob/main/docs/troubleshooting.md
at onClose (/opt/nodejs/node14.17.6/lib/node_modules/rrvideo/node_modules/puppeteer/lib/cjs/puppeteer/node/BrowserRunner.js:193:20)
at Interface.<anonymous> (/opt/nodejs/node14.17.6/lib/node_modules/rrvideo/node_modules/puppeteer/lib/cjs/puppeteer/node/BrowserRunner.js:183:68)
at Interface.emit (events.js:412:35)
at Interface.close (readline.js:451:8)
at Socket.onend (readline.js:224:10)
at Socket.emit (events.js:412:35)
at endReadableNT (internal/streams/readable.js:1317:12)
at processTicksAndRejections (internal/process/task_queues.js:82:21)
# 安装缺失的库文件
yum install pango.x86_64 libXcomposite.x86_64 libXcursor.x86_64 libXdamage.x86_64 libXext.x86_64 libXi.x86_64 libXtst.x86_64 cups-libs.x86_64 libXScrnSaver.x86_64 libXrandr.x86_64 GConf2.x86_64 alsa-lib.x86_64 atk.x86_64 gtk3.x86_64 -y
yum update nss -y
yum install libX11-devel --nogpg
yum install libgbm*
yum install libdrm*
# 再次执行转换视频命令
rrvideo --input rrWeb_48234910066649106.txt --output rrWeb_48234910066649106.mp4
# 报错
Failed to transform this session.
Error: Failed to launch the browser process!
/opt/nodejs/node14.17.6/lib/node_modules/rrvideo/node_modules/puppeteer/.local-chromium/linux-818858/chrome-linux/chrome: error while loading shared libraries: libgbm.so.1: cannot open shared object file: No such file or directory
TROUBLESHOOTING: https://github.com/puppeteer/puppeteer/blob/main/docs/troubleshooting.md
at onClose (/opt/nodejs/node14.17.6/lib/node_modules/rrvideo/node_modules/puppeteer/lib/cjs/puppeteer/node/BrowserRunner.js:193:20)
at Interface.<anonymous> (/opt/nodejs/node14.17.6/lib/node_modules/rrvideo/node_modules/puppeteer/lib/cjs/puppeteer/node/BrowserRunner.js:183:68)
at Interface.emit (events.js:412:35)
at Interface.close (readline.js:451:8)
at Socket.onend (readline.js:224:10)
at Socket.emit (events.js:412:35)
at endReadableNT (internal/streams/readable.js:1317:12)
at processTicksAndRejections (internal/process/task_queues.js:82:21)
# 确认报错为缺少的库文件，libgbm.so.1
# 或使用ldd /opt/nodejs/node14.17.6/lib/node_modules/rrvideo/node_modules/puppeteer/.local-chromium/linux-818858/chrome-linux/chrome 命令 查看缺失的库文件
# 去安装过libgbm.so.1的服务器，查看libgbm.so.1通过安装什么软件，此次我是去测试环境执行
# 测试环境执行如下命令
[root@test-webapp-svr20 ffmpeg]# rpm -qf /lib64/libgbm.so.1
mesa-libgbm-21.1.5-1.el8.x86_64
# 预生产执行
yum install mesa-libgbm-21.1.5-1.el8.x86_64
# 安装成功后执行转换命令，转换成功表示安装完成
rrvideo --input rrWeb_48234910066649106.txt --output rrWeb_48234910066649106.mp4
缺少其他库文件解决方法
# 如缺少libpcre.so.1文件
一种是安装libpcre.so.1对应的软件，
一种是获取libpcre.so.1库文件并放置在 /lib64目录下。
最后一种是获取libpcre.so.1库文件库文件并上传至服务器A任意目录下上并设置LD_LIBRARY_PATH变量
方法一：获取软件并设置LD_LIBRARY_PATH变量方法。如下：
Step1：从服务器B上下载libpcre.so.1对应软件，上传至服务器A上任意目录下。如/opt。
Step2：设置LD_LIBRARY_PATH变量。执行export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt。说明：LD_LIBRARY_PATH是Linux环境变量名，该环境变量主要用于指定查找共享库（动态链接库）时除了默认路径之外的其他路径。
Step3：重新执行程序，问题解决。
方法二：获取软件并放置指定目录下。如下：
Step1：从服务器B上下载libpcre.so.1对应软件，上传至服务器A上的/lib64目录下。/lib64为步骤（2）中查出缺失文件的目录。
Step2：重新执行程序，问题解决。
方法三：安装libpcre.so.1对应的软件方法如下：
Step1：在服务器B上执行rpm -qf /lib64/libpcre.so.1。
[root@www ~]# rpm -qf /lib64/libpcre.so.1
libpcre-3.2-21.el5 --> 说明libpcre.so.1文件是通过安装libpcre-3.2-21.el5获取。
Step2：查看Linux服务器系统版本，获取对应的镜像包，从而获取libpcre-3.2-21.el5.rpm安装软件
Step3：执行rpm -ivh libpcre-3.2-21.el5.rpm安装。
Step4：重新执行程序，问题解决。
2.4、使用rrvideo转换视频问题
2.4.1、rrvideo源码
rrvideo-main\src\index.ts
import * as fs from "fs";
import * as path from "path";
import {
spawn } from "child_process";
import puppeteer from "puppeteer";
import type {
eventWithTime } from "rrweb/typings/types";
import type {
RRwebPlayerOptions } from "rrweb-player";
import type {
Page, Browser } from "puppeteer";
const rrwebScriptPath = path.resolve(
require.resolve("rrweb-player"),
"../../dist/index.js"
);
const rrwebStylePath = path.resolve(rrwebScriptPath, "../style.css");
const rrwebRaw = fs.readFileSync(rrwebScriptPath, "utf-8");
const rrwebStyle = fs.readFileSync(rrwebStylePath, "utf-8");
interface Config {
// start playback delay time
startDelayTime?: number,
}
function getHtml(
events: Array<eventWithTime>,
config?: Omit<RRwebPlayerOptions["props"] & Config, "events">
): string {
return `
<html>
<head>
<style>${
rrwebStyle}</style>
</head>
<body>
<script>
${
rrwebRaw};
/*<!--*/
const events = ${
JSON.stringify(events).replace(
/<\/script>/g,
"<\\/script>"
)};
/*-->*/
const userConfig = ${
config ? JSON.stringify(config) : {
}};
window.replayer = new rrwebPlayer({
target: document.body,
props: {
events,
showController: false,
autoPlay: false, // autoPlay off by default
...userConfig
},
});
window.replayer.addEventListener('finish', () => window.onReplayFinish());
let time = userConfig.startDelayTime || 1000 // start playback delay time, default 1000ms
let start = fn => {
setTimeout(() => {
fn()
}, time)
}
// It is recommended not to play auto by default. If the speed is not 1, the page block in the early stage of autoPlay will be blank
if (userConfig.autoPlay) {
start = fn => {
fn()
};
}
start(() => {
window.onReplayStart();
window.replayer.play();
})
</script>
</body>
</html>
`;
}
type RRvideoConfig = {
fps: number;
headless: boolean;
input: string;
cb: (file: string, error: null | Error) => void;
output: string;
rrwebPlayer: Omit<RRwebPlayerOptions["props"] & Config, "events">;
};
const defaultConfig: RRvideoConfig = {
fps: 15,
headless: true,
input: "",
cb: () => {
},
output: "rrvideo-output.mp4",
rrwebPlayer: {
},
};
class RRvideo {
private browser!: Browser;
private page!: Page;
private state: "idle" | "recording" | "closed" = "idle";
private config: RRvideoConfig;
constructor(config?: Partial<RRvideoConfig> & {
input: string }) {
this.config = {
fps: config?.fps || defaultConfig.fps,
headless: config?.headless || defaultConfig.headless,
input: config?.input || defaultConfig.input,
cb: config?.cb || defaultConfig.cb,
output: config?.output || defaultConfig.output,
rrwebPlayer: config?.rrwebPlayer || defaultConfig.rrwebPlayer,
};
}
public async init() {
try {
// 定义puppeteer 相关配置可以参考：https://zhuanlan.zhihu.com/p/624900686
this.browser = await puppeteer.launch({
headless: this.config.headless,
});
// 初始化时创建一个新页面
this.page = await this.browser.newPage();
await this.page.goto("about:blank");
// 页面开始时执行的方法
await this.page.exposeFunction("onReplayStart", () => {
this.startRecording();
});
// 页面结束时执行的方法
await this.page.exposeFunction("onReplayFinish", () => {
this.finishRecording();
});
const eventsPath = path.isAbsolute(this.config.input)
? this.config.input
: path.resolve(process.cwd(), this.config.input);
const events = JSON.parse(fs.readFileSync(eventsPath, "utf-8"));
// 向页面中传参，传入录制的dom数据和配置
await this.page.setContent(getHtml(events, this.config.rrwebPlayer));
} catch (error) {
this.config.cb("", error);
}
}
private async startRecording() {
this.state = "recording";
let wrapperSelector = ".replayer-wrapper";
if (this.config.rrwebPlayer.width && this.config.rrwebPlayer.height) {
wrapperSelector = ".rr-player";
}
const wrapperEl = await this.page.$(wrapperSelector);
if (!wrapperEl) {
throw new Error("failed to get replayer element");
}
// start ffmpeg
const args = [
// fps
"-framerate",
this.config.fps.toString(),
// input
"-f",
"image2pipe",
"-i",
"-",
// output
"-y",
this.config.output,
];
const ffmpegProcess = spawn("ffmpeg", args);
ffmpegProcess.stderr.setEncoding("utf-8");
ffmpegProcess.stderr.on("data", console.log);
let processError: Error | null = null;
const timer = setInterval(async () => {
if (this.state === "recording" && !processError) {
try {
const buffer = await wrapperEl.screenshot({
encoding: "binary",
});
ffmpegProcess.stdin.write(buffer);
} catch (error) {
// ignore
}
} else {
clearInterval(timer);
if (this.state === "closed" && !processError) {
ffmpegProcess.stdin.end();
}
}
}, 1000 / this.config.fps);
const outputPath = path.isAbsolute(this.config.output)
? this.config.output
: path.resolve(process.cwd(), this.config.output);
ffmpegProcess.on("close", () => {
if (processError) {
return;
}
this.config.cb(outputPath, null);
});
ffmpegProcess.on("error", (error) => {
if (processError) {
return;
}
processError = error;
this.config.cb(outputPath, error);
});
ffmpegProcess.stdin.on("error", (error) => {
if (processError) {
return;
}
processError = error;
this.config.cb(outputPath, error);
});
}
private async finishRecording() {
this.state = "closed";
await this.browser.close();
}
}
export function transformToVideo(
config: Partial<RRvideoConfig> & {
input: string }
): Promise<string> {
return new Promise((resolve, reject) => {
const rrvideo = new RRvideo({
...config,
cb(file, error) {
if (error) {
return reject(error);
}
resolve(file);
},
});
rrvideo.init();
});
}
2.4.2、问题一：rrvideo默认转换超时时间为30秒，调整为无超时时间，超时时间通过脚本进行控制
// 在index.ts中的public async init()方法增加
await this.page.setDefaultNavigationTimeout(0);
全方法
public async init() {
try {
this.browser = await puppeteer.launch({
headless: this.config.headless,
});
this.page = await this.browser.newPage();
// 增加设置超时时间为0
await this.page.setDefaultNavigationTimeout(0);
await this.page.goto("about:blank");
await this.page.exposeFunction("onReplayStart", () => {
this.startRecording();
});
await this.page.exposeFunction("onReplayFinish", () => {
this.finishRecording();
});
const eventsPath = path.isAbsolute(this.config.input)
? this.config.input
: path.resolve(process.cwd(), this.config.input);
const events = JSON.parse(fs.readFileSync(eventsPath, "utf-8"));
await this.page.setContent(getHtml(events, this.config.rrwebPlayer));
} catch (error) {
this.config.cb("", error);
}
}
2.4.3、问题二：转换后的视频抖动问题，有白边
白边问题为puppeteer默认打开浏览器的大小与rrvideo播放器的大小冲突导致
puppeteer打开的页面默认的窗口大小是800*600，与rrWeb-player的窗口大小不符合导致的白边问题
// 在index.ts中的public async init()方法增加 窗口可以设置1280*720 或者1920*1080
await this.page.setViewport({
width: 1280,height: 720,deviceScaleFactor: 1});
此大小需要与rrvideo的rrvideo.config配置文件相同
rrvideo.config
{
"width":1280,
"height":720,
"speed": 1,
"skipInactive": true,
"mouseTail": {
"strokeStyle": "green",
"lineWidth": 2
},
"startDelayTime": 1000
}
全方法
public async init() {
try {
this.browser = await puppeteer.launch({
headless: this.config.headless,
});
this.page = await this.browser.newPage();
// 增加设置超时时间为0
await this.page.setDefaultNavigationTimeout(0);
// 设置puppeteer打开谷歌浏览器的大小
await this.page.setViewport({
width: 1280,height: 720,deviceScaleFactor: 1});
await this.page.goto("about:blank");
await this.page.exposeFunction("onReplayStart", () => {
this.startRecording();
});
await this.page.exposeFunction("onReplayFinish", () => {
this.finishRecording();
});
const eventsPath = path.isAbsolute(this.config.input)
? this.config.input
: path.resolve(process.cwd(), this.config.input);
const events = JSON.parse(fs.readFileSync(eventsPath, "utf-8"));
await this.page.setContent(getHtml(events, this.config.rrwebPlayer));
} catch (error) {
this.config.cb("", error);
}
}
2.4.4、问题三：视频转换速度和清晰度问题
转换速度
// 在index.ts中的RRvideoConfig中，将fps由10改为15
const defaultConfig: RRvideoConfig = {
fps:15,
headless: true,
input: "",
cb: () => {
},
output: "rrvideo-output.mp4",
rrwebPlayer: {
},
};
清晰度
// 在index.ts中的startRecording方法，调整ffmpeg的配置
// 原
const args = [
// fps
"-framerate",
this.config.fps.toString(),
// input
"-f",
"image2pipe",
"-i",
"-",
// output
"-y",
this.config.output,
];
// 改为
args = [
// fps
"-framerate",
this.config.fps.toString(),
// input
"-f",
"image2pipe",
"-i",
"-",
// output
"-y",
"-b:v",
"2000k",
this.config.output,
];
ffmpeg配置含义参考：
https://zhuanlan.zhihu.com/p/145312133
https://wenku.baidu.com/view/45b9f4a51a5f312b3169a45177232f60dccce749.html?wkts=1701760052153&bdQuery=ffmpeg+%E5%8F%82%E6%95%B0%E9%85%8D%E7%BD%AE-s
2.4.5、更改index.ts如何在服务器上生效
本地修改完index.ts代码后，需要将其编译为js文件，上传到服务器中
上传路径：nodejs目录下安装的rrvideo下build文件夹
以测试环境为例：/opt/nodejs/node14.17.6/lib/node_modules/rrvideo/build/index.js
将本地反编译的文件替换上面目录的index.js即可
.ts转为js
ts文件是TypeScript (一种JavaScript的超集)文件，要将其编译成,js文件，你需要使用TypeScript编译器.以下是使用TypeScript编译器编译.ts文件的步骤:
- 1.安装TypeScript: 首先，确保你的系统上安装了Node.s。然后，在终端或命令提示符中运行以下命令今来全局安装TypeScript:
npm instal1 -g typescript
这将安装TypeScript编译器并在你的系统上设置一个类型化的命令tsc。
- 2.编译ts文件:在终端或命令提示符中，导航到包含ts文件的目录，并运行以下命今来编译.ts文件
tsc index.ts
2.4.6、rrvideo 录制弹窗展示不全，展示多个等问题
只要你使用rrWeb-player播放的内容和最终转换视频后的内容不一致，都是此问题导致
此问题的原因为rrvideo的版本没有人维护了，所使用的rrWeb-player版本很低，所以播放的时候有很多问题
找到你的rrvideo的位置，打开package.json查看rrWeb-player版本
cat /opt/nodejs/node14.17.6/lib/node_modules/rrvideo/package.json (你的rrvideo安装的地址)
{
"_from": "rrvideo",
"_id": "[email protected]",
"_inBundle": false,
"_integrity": "sha512-EumIkBkXq+C2Ki6MKXYH3bxik5kTnZWn1IO6YmdJrLXHqgoPla7XUib0HpITE8UevFMq8xufXuo0ElHdwD5AZQ==",
"_location": "/rrvideo",
"_phantomChildren": {
},
"_requested": {
"type": "tag",
"registry": true,
"raw": "rrvideo",
"name": "rrvideo",
"escapedName": "rrvideo",
"rawSpec": "",
"saveSpec": null,
"fetchSpec": "latest"
},
"_requiredBy": [
"#USER"
],
"_resolved": "https://registry.npmjs.org/rrvideo/-/rrvideo-0.2.1.tgz",
"_shasum": "8849ead66853621884e21d3e254f33e18ca93378",
"_spec": "rrvideo",
"_where": "/opt/nodejs/node14.17.6/lib",
"author": {
"name": "[email protected]"
},
"bin": {
"rrvideo": "build/cli.js"
},
"bundleDependencies": false,
"dependencies": {
"@types/minimist": "^1.2.1",
"@types/puppeteer": "^5.4.0",
"minimist": "^1.2.5",
"puppeteer": "^5.4.1",
"rrweb-player": "^0.6.5",
"typescript": "^4.0.5"
},
"deprecated": false,
"description": "transform rrweb session into video",
"files": [
"build"
],
"license": "MIT",
"main": "build/index.js",
"name": "rrvideo",
"scripts": {
"build": "tsc",
"prepublish": "yarn build",
"test": "test"
},
"version": "0.2.1"
}
可以看到，rrvideo引用的rrWeb-player版本为0.6.5
修改此内容为你的rrWeb-player对应版本，我的是1.0.0-alpha.4
修改后执行
# 在/opt/nodejs/node14.17.6/lib/node_modules/rrvideo/下执行
npm install
# 若下载太慢，切换淘宝镜像(我太贴心了)
npm config set registry https://registry.npm.taobao.org
执行后重新转换视频，转换的视频和本地使用rrWeb-player播放的效果一致
吐槽：rrvideo好像很长时间没有人维护了，一堆问题，按照我的方式将它的代码优化后，基本使用时完全没有问题的。github上还有很多人的提问都没有回答，感觉是没人维护了，所以这些改动代码我没有提上去，大家有时间的可以将改好的代码提交上去，或者回答下github上的问题
2.5、rrvideo完整修改后代码
操作步骤
- 按照2.4.2、2.4.3、2.4.4、2.4.6更改下载的rrvideo源码中的index.ts
- 按照2.4.5生成对应的index.js
- 将生成的index.js替换服务器安装的rrvideo对应的index.js
rrvideo中index.js地址
#找到你安装的rrvideo地址
# 以下是我的地址
[root@test-webapp-svr20 rrvideo]# cd /opt/nodejs/node14.17.6/lib/node_modules/rrvideo
[root@test-webapp-svr20 rrvideo]# ll
total 44
-rw-r--r-- 1 root root 978 Oct 26 1985 README.md
-rw-r--r-- 1 root root 971 Oct 26 1985 README.zh_CN.md
drwxr-xr-x 2 root root 4096 Dec 13 16:42 build
drwxr-xr-x 72 root root 4096 Dec 14 15:21 node_modules
-rw-r--r-- 1 root root 22561 Dec 14 15:21 package-lock.json
-rw-r--r-- 1 root root 1307 Dec 14 15:16 package.json
[root@test-webapp-svr20 rrvideo]# cd build
[root@test-webapp-svr20 rrvideo]# vim index.js
下面分享我修改好后的index.js，替换掉原rrvideo的即可，喜欢的可以点个收藏，谢谢~
"use strict";
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
Object.defineProperty(o, k2, {
enumerable: true, get: function() {
return m[k]; } });
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", {
enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {
};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) {
return value instanceof P ? value : new P(function (resolve) {
resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) {
try {
step(generator.next(value)); } catch (e) {
reject(e); } }
function rejected(value) {
try {
step(generator["throw"](value)); } catch (e) {
reject(e); } }
function step(result) {
result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = {
label: 0, sent: function() {
if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = {
next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() {
return this; }), g;
function verb(n) {
return function (v) {
return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return {
value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) {
_ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) {
_.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) {
_.label = t[1]; t = op; break; }
if (t && _.label < t[2]) {
_.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) {
op = [6, e]; y = 0; } finally {
f = t = 0; }
if (op[0] & 5) throw op[1]; return {
value: op[0] ? op[1] : void 0, done: true };
}
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : {
"default": mod };
};
Object.defineProperty(exports, "__esModule", {
value: true });
exports.transformToVideo = void 0;
var fs = __importStar(require("fs"));
var path = __importStar(require("path"));
var child_process_1 = require("child_process");
var puppeteer_1 = __importDefault(require("puppeteer"));
var rrwebScriptPath = path.resolve(require.resolve("rrweb-player"), "../../dist/index.js");
var rrwebStylePath = path.resolve(rrwebScriptPath, "../style.css");
var rrwebRaw = fs.readFileSync(rrwebScriptPath, "utf-8");
var rrwebStyle = fs.readFileSync(rrwebStylePath, "utf-8");
function getHtml(events, config) {
return "\n<html>\n <head>\n <style>" + rrwebStyle + "</style>\n </head>\n <body>\n <script>\n " + rrwebRaw + ";\n /*<!--*/\n const events = " + JSON.stringify(events).replace(/<\/script>/g, "<\\/script>") + ";\n /*-->*/\n const userConfig = " + (config ? JSON.stringify(config) : {
}) + ";\n window.replayer = new rrwebPlayer({\n target: document.body,\n props: {\n events,\n showController: false,\n ...userConfig\n },\n });\n window.onReplayStart();\n window.replayer.play();\n window.replayer.addEventListener('finish', () => window.onReplayFinish());\n </script>\n </body>\n</html>\n";
}
var defaultConfig = {
fps: 10,
headless: true,
input: "",
cb: function () {
},
output: "rrvideo-output.mp4",
rrwebPlayer: {
},
};
var RRvideo = /** @class */ (function () {
function RRvideo(config) {
this.state = "idle";
this.config = {
fps: (config === null || config === void 0 ? void 0 : config.fps) || defaultConfig.fps,
headless: (config === null || config === void 0 ? void 0 : config.headless) || defaultConfig.headless,
input: (config === null || config === void 0 ? void 0 : config.input) || defaultConfig.input,
cb: (config === null || config === void 0 ? void 0 : config.cb) || defaultConfig.cb,
output: (config === null || config === void 0 ? void 0 : config.output) || defaultConfig.output,
rrwebPlayer: (config === null || config === void 0 ? void 0 : config.rrwebPlayer) || defaultConfig.rrwebPlayer,
};
}
RRvideo.prototype.init = function () {
return __awaiter(this, void 0, void 0, function () {
var _a, _b, eventsPath, events, error_1;
var _this = this;
return __generator(this, function (_c) {
switch (_c.label) {
case 0:
_c.trys.push([0, 8, , 9]);
_a = this;
return [4 /*yield*/, puppeteer_1.default.launch({
headless: this.config.headless,
defaultViewport: {
width: 1920,
height: 1080,
},
})];
case 1:
_a.browser = _c.sent();
_b = this;
return [4 /*yield*/, this.browser.newPage()];
case 2:
_b.page = _c.sent();
return [4 /*yield*/, this.page.setDefaultNavigationTimeout(0)];
case 3:
_c.sent();
return [4 /*yield*/, this.page.goto("about:blank")];
case 4:
_c.sent();
return [4 /*yield*/, this.page.exposeFunction("onReplayStart", function () {
_this.startRecording();
})];
case 5:
_c.sent();
return [4 /*yield*/, this.page.exposeFunction("onReplayFinish", function () {
_this.finishRecording();
})];
case 6:
_c.sent();
eventsPath = path.isAbsolute(this.config.input)
? this.config.input
: path.resolve(process.cwd(), this.config.input);
events = JSON.parse(fs.readFileSync(eventsPath, "utf-8"));
return [4 /*yield*/, this.page.setContent(getHtml(events, this.config.rrwebPlayer))];
case 7:
_c.sent();
return [3 /*break*/, 9];
case 8:
error_1 = _c.sent();
this.config.cb("", error_1);
return [3 /*break*/, 9];
case 9: return [2 /*return*/];
}
});
});
};
RRvideo.prototype.startRecording = function () {
return __awaiter(this, void 0, void 0, function () {
var wrapperSelector, wrapperEl, args, ffmpegProcess, processError, timer, outputPath;
var _this = this;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
this.state = "recording";
wrapperSelector = ".replayer-wrapper";
if (this.config.rrwebPlayer.width && this.config.rrwebPlayer.height) {
wrapperSelector = ".rr-player";
//wrapperSelector = ".replayer-wrapper";
}
return [4 /*yield*/, this.page.$(wrapperSelector)];
case 1:
wrapperEl = _a.sent();
if (!wrapperEl) {
throw new Error("failed to get replayer element");
}
args = [
// fps
"-framerate",
this.config.fps.toString(),
// input
"-f",
"image2pipe",
"-i",
"-",
// output
"-y",
//"-qscale",
//"1",
"-b:v",
"2000k",
// "-s",
//"1280x720",
this.config.output,
];
ffmpegProcess = child_process_1.spawn("ffmpeg", args);
ffmpegProcess.stderr.setEncoding("utf-8");
ffmpegProcess.stderr.on("data", console.log);
processError = null;
timer = setInterval(function () {
return __awaiter(_this, void 0, void 0, function () {
var buffer, error_2;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!(this.state === "recording" && !processError)) return [3 /*break*/, 5];
_a.label = 1;
case 1:
_a.trys.push([1, 3, , 4]);
return [4 /*yield*/, wrapperEl.screenshot({
encoding: "binary",
})];
case 2:
buffer = _a.sent();
ffmpegProcess.stdin.write(buffer);
return [3 /*break*/, 4];
case 3:
error_2 = _a.sent();
return [3 /*break*/, 4];
case 4: return [3 /*break*/, 6];
case 5:
clearInterval(timer);
if (this.state === "closed" && !processError) {
ffmpegProcess.stdin.end();
}
_a.label = 6;
case 6: return [2 /*return*/];
}
});
}); }, 1000 / this.config.fps);
outputPath = path.isAbsolute(this.config.output)
? this.config.output
: path.resolve(process.cwd(), this.config.output);
ffmpegProcess.on("close", function () {
if (processError) {
return;
}
_this.config.cb(outputPath, null);
});
ffmpegProcess.on("error", function (error) {
if (processError) {
return;
}
processError = error;
_this.config.cb(outputPath, error);
});
ffmpegProcess.stdin.on("error", function (error) {
if (processError) {
return;
}
processError = error;
_this.config.cb(outputPath, error);
});
return [2 /*return*/];
}
});
});
};
RRvideo.prototype.finishRecording = function () {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
this.state = "closed";
return [4 /*yield*/, this.browser.close()];
case 1:
_a.sent();
return [2 /*return*/];
}
});
});
};
return RRvideo;
}());
function transformToVideo(config) {
return new Promise(function (resolve, reject) {
var rrvideo = new RRvideo(__assign(__assign({
}, config), {
cb: function (file, error) {
if (error) {
return reject(error);
}
resolve(file);
} }));
rrvideo.init();
});
}
exports.transformToVideo = transformToVideo;