crop-yt-video.js

const express = require('express');
const ytdl = require('ytdl-core');
const ffmpeg = require('fluent-ffmpeg');
const fs = require('fs');
const app = express();
const port = 3000;

const startMinute = 3;
const startSecond = 51;
const endMinute = 4;
const endSecond = 51;

const startTime = startMinute * 60 + startSecond; 
const endTime = endMinute * 60 + endSecond; 


const duration = endTime - startTime;

app.use(express.json());

app.post('/download-and-cut', async (req, res) => {
  try {
    const { videoUrl} = req.body;

    if (!videoUrl || !startTime || !endTime) {
      return res.status(400).json({ error: 'Parâmetros inválidos' });
    }
    
    const videoFileName = `${Date.now()}.mp4`;

    const videoStream = ytdl(videoUrl, { quality: 'highestvideo',  filter: 'audioandvideo',  });

    
    ffmpeg({ timeout: 120000 })
      .input(videoStream)
      .setStartTime(startTime)
      .setDuration(duration)
      .size('1080x1920')
      .videoFilters('scale=1080:1920,setsar=1:1') 
      .outputOptions('-c:v libx264')
      .audioCodec('aac')
      .outputOptions('-r 60') 
      .output(videoFileName)
      .on('end', () => {
        
        const outputPath = `./downloads/${videoFileName}`;
        fs.renameSync(videoFileName, outputPath);

        
        res.json({ message: 'cropped with success', filePath: outputPath });
      })
      .on('error', (err) => {
        console.error('Error:', err);
        res.status(500).json({ error: 'Error' });
      })
      .run();
  } catch (err) {
    console.error('Unexpected error:', err);
    res.status(500).json({ error: 'Unexpected error' });
  }
});

app.listen(port, () => {
  console.log(`Server running at port ${port}`);
});