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百度seo查询系统,重庆seo网站运营,设计官网的作用,网站服务器和空间大小最近项目要求，一键生成房子的推荐视频，选几张图，加上联系人的方式就是一个简单的视频，因为有web端、小程序端，为了多端口用，决定放在服务器端生成。目前用的是react中的nextjs来开发项目。 nextjs中怎样…

最近项目要求，一键生成房子的推荐视频，选几张图，加上联系人的方式就是一个简单的视频，因为有web端、小程序端，为了多端口用，决定放在服务器端生成。

目前用的是react中的nextjs来开发项目。

nextjs中怎样用ffcreator上一章有讲到过，这里不再详细说了，考虑多端口用，并发和处理视频合成等一系列对服务器压力过大的情况，这时候队列就有必要了。

一通了解后FFCreatorCenter能实现队列。官方有koa实现队列的例子。看过后怎样在nextjs中实现？

找准思路：

1.制作预设视频动画模板，意思是合成视频的模板提前预设好的，比如静态内容都提前准备好

2.用户选择想要的视频模板，然后根据视频模板添加动态内容，排队生成视频

3.查询视频生成情况

按照上述流程，我们开干：

1。制作预设视频模板，做一个模板比如相册视频，放到模板详情接口中调用AddTPL(id)


import { FFAlbum, FFScene, FFImage, FFCreator, FFRect, FFText, FFCreatorCenter } from 'ffcreator'
const path = require('path');
import colors from 'colors'
export default function AddTPL({ id }) {FFCreatorCenter.createTemplate(id, async ({ }) => {
//用官方图片例子const ROOT_PATH = process.cwd();const bg1 = path.join(ROOT_PATH, '/assets/imgs/bg/05.jpg');console.log(bg1)const bg2 = path.join(ROOT_PATH, '/assets/imgs/bg/04.jpeg');const logo2 = path.join(ROOT_PATH, '/assets/imgs/logo/logo2.png');const cloud = path.join(ROOT_PATH, '/assets/imgs/cloud.png');const mars = path.join(ROOT_PATH, '/assets/imgs/mars.png');const rock = path.join(ROOT_PATH, '/assets/imgs/rock.png');const title = path.join(ROOT_PATH, '/assets/imgs/title.png');const audio = path.join(ROOT_PATH, '/assets/audio/05.wav');const outputDir = path.join(ROOT_PATH, '/video/');const cacheDir = path.join(ROOT_PATH, '/cache/');FFCreator.setFFmpegPath('D:/nextAppV2/H5/ffmpeg-6.0-full_build/bin/ffmpeg.exe');// create creator instanceconst width = 576;const height = 1024;const creator = new FFCreator({cacheDir,outputDir,width,height,//log: true,highWaterMark: '3mb',parallel: 8,fps: 30,audio,});// create FFSceneconst scene1 = new FFScene();const scene2 = new FFScene();scene1.setBgColor('#0b0be6');scene2.setBgColor('#b33771');// add scene1 backgroundconst fbg1 = new FFImage({ path: bg1, x: width / 2, y: height / 2 });scene1.addChild(fbg1);// add bottom cloudconst fcloud = new FFImage({ path: cloud, x: width });fcloud.setAnchor(1);fcloud.addAnimate({from: { y: height + 180 },to: { y: height },time: 0.8,ease: 'Back.Out',});scene1.addChild(fcloud);// add mars ballconst fmars = new FFImage({ path: mars, x: width / 2, y: height / 2 });fmars.addEffect(['rollIn', 'zoomIn'], 1.8, 0.8);scene1.addChild(fmars);// add rock imageconst frock = new FFImage({ path: rock, x: width / 2 + 100 });frock.addAnimate({from: { y: height / 2 + 720 },to: { y: height / 2 + 80 },time: 1,delay: 2.3,ease: 'Cubic.InOut',});scene1.addChild(frock);// add rock imageconst ftitle = new FFImage({ path: title, x: width / 2, y: height / 2 - 300 });ftitle.addEffect('fadeInUp', 1, 4);scene1.addChild(ftitle);// add logoconst flogo1 = new FFImage({ path: logo2, x: width / 2, y: 50 });flogo1.setScale(0.5);scene1.addChild(flogo1);scene1.setDuration(8);scene1.setTransition('InvertedPageCurl', 1.5);creator.addChild(scene1);// add scene2 backgroundconst fbg2 = new FFImage({ path: bg2, x: width / 2, y: height / 2 });scene2.addChild(fbg2);// add logoconst flogo2 = new FFImage({ path: logo2, x: width / 2, y: height / 2 - 80 });flogo2.setScale(0.9);flogo2.addEffect('fadeInDown', 1, 1.2);// 9s removeflogo2.remove(9);scene2.addChild(flogo2);scene2.setDuration(5);creator.addChild(scene2);creator.start();//creator.openLog();creator.on('start', () => {console.log(`FFCreator start`);});creator.on('error', e => {console.log(`FFCreator error: ${e.error}`);});creator.on('progress', e => {console.log(colors.yellow(`FFCreator progress: ${(e.percent * 100) >> 0}%`));});creator.on('complete', e => {console.log(colors.magenta(`FFCreator completed: \n USEAGE: ${e.useage} \n PATH: ${e.output} `),);console.log(colors.green(`\n --- You can press the s key or the w key to restart! --- \n`));});return creator;
})
}

2.添加队列，

//添加队列
export function AddTask({  Templateid }) {const Taskid = FFCreatorCenter.addTaskByTemplate(Templateid, { });res.statusCode = 200res.json({code: 0,data: {taskid: Taskid}})
}

3.查询成功接口，并下载mp4

//下载
import { FFAlbum, FFScene, FFImage, FFCreator, FFRect, FFText, FFCreatorCenter } from 'ffcreator'
export default async (req, res) => {
const taskid = req.query.taskid
var fs = require('fs');FFCreatorCenter.onTaskError(taskid, function (err) {console.log("onTaskError", err)})FFCreatorCenter.onTaskComplete(taskid, function (e) {console.log("onTaskComplete", e)let { file, taskObj } = elet output = file ? file.replace(/\/\//g, "/") : ""fs.readFile(output, function (isErr, data) {if (isErr) {} else {let file_name = new Date().getTime()let Disposition = "inline;";if (scene == "pwa") {Disposition = "attchment;";}if (scene == "mini") {Disposition = "inline;";}res.setHeader('Content-Type', 'video/mp4; charset=utf-8');res.setHeader('Content-Disposition', `${Disposition}filename=${encodeURIComponent(file_name)}.mp4`);res.status(200)res.end(data)}})})}

另附上视频转gif的方法：

let cp = require('child_process');let flie_gif = `${cacheDir}${taskid}.gif`const bb = `ffmpeg -ss 00:00:00 -to 00:00:${videoConfig.duration} -i ${output} -r 10 -vf scale=1050:-1 ${flie_gif}`cp.exec(bb,function (error, stdout, stderr) {if (error) {console.log('执行的结果error:', error)} else {fs.readFile(flie_gif, function (isErr, data) {if (isErr) {console.log('执行的结果error:', isErr)} else {let file_name = new Date().getTime()let Disposition = "inline;";if (scene == "pwa") {Disposition = "attchment;";}if (scene == "mini") {Disposition = "inline;";}res.setHeader('Content-Type', 'image/gif; charset=utf-8');res.setHeader('Content-Disposition', `${Disposition}filename=${encodeURIComponent(file_name)}.gif`);res.status(200)res.end(data)}})}// console.log('执行的结果stdout:', stdout)// console.log('执行的结果stderr:', stderr)})

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