Demo

readme.md

Demo : Create two folders curr and frames in current directory where all these files will be saved. Add 8 images to frames folder with name sequence

Add audio. Currently it only loads local file. Later it can be made to select user choice file.

f_1.jpg
f_2.jpg
f_3.jpg
f_4.jpg
f_5.jpg
f_6.jpg
f_7.jpg
f_8.jpg

Images must be all jpg. Images can be any random pictures.
This code was taken from the series https://gist.github.com/cliffhall/09af8ba728659a3fc81ba21d16c9a6d1

app.js

var command;
const fs = require('fs');

function some(){
  const ffmpegInstaller = require('@ffmpeg-installer/ffmpeg');
  var ffmpeg = require('fluent-ffmpeg');
  ffmpeg.setFfmpegPath(ffmpegInstaller.path);
  command = ffmpeg();
  createVideo(command);
}

function createFrames(length){

  var counter = 1;

  for(var i=0;i<length;i++){
    var file = "f_"+counter+".jpg";
    var c = __dirname+"/frames/" + file;
    var newFile = "f_"+(i+1)+".jpg";

    doFile(c,__dirname + "/curr/" + newFile);

    if(counter == 8){
      counter = 1;
    }else{
      counter++;
    }

  }

}

function doFile(c,s){
  fs.readFile(c, function (err, data) {
     if (err) throw err;
      fs.writeFileSync(s, data, function (err) {
       if (err) throw err;
     });
   });
}

function createVideo(command) {

  command
  .on('end', onEnd )
  .on('progress', onProgress)
  .on('error', onError)
  .input(__dirname+'/curr/f_%1d.jpg')
  .inputFPS(1/1)
  .input(__dirname+"/Awari.mp3")
  .output(__dirname+"/test.mp4")
  .run();

}

function onProgress(progress){
 timemark = progress.timemark;
 console.log('Time : ' + timemark);
}

function onError(err, stdout, stderr) {
  console.log(err);
}

function onEnd() {
  console.log("ended");
}

//createFrames(320);
some();

package.json

{
  "name": "audiotovideo",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "@ffmpeg-installer/ffmpeg": "^1.0.19",
    "async": "^3.1.0",
    "express": "^4.17.1",
    "fluent-ffmpeg": "^2.1.2",
    "nodemon": "^1.19.1",
    "save": "^2.4.0"
  }
}