lib/convertFormat.js

const ffmpeg = require('fluent-ffmpeg');
const FileType = require("file-type");


function allToJpg(bufferImage) {
	return new Promise((resolve, reject) => {
		FileType.fromBuffer(bufferImage)
			.then((response) => {
				try {
					const buffers = [];
					ffmpeg()
                      .input(webpBuffer)
                      .inputFormat(response.ext)
                      .outputFormat('jpeg')
                      .on('data', (chunk) => {
                      buffers.push(chunk);
                      })
                      .on('end', () => {
                      const resultBuffer = Buffer.concat(buffers);
                      resolve(resultBuffer);
                      })
                      .on('error', (err) => {
                      console.log(err);
                     })
                     .run();           
				} catch(e) {
					reject(e);
				}
			})
			.catch(e => reject(e));
	});
 }
module.exports = { allToJpg }