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• How to use ffmpeg to convert video into the audio format with nodejs and angular in web app

  31 août 2021, par Amir Shahzad

  I want to convert the video into the audio format using ffmpeg in nodejs but I not know how I can implement it in the angular app with nodejs.

  


  This is my nodejs code

  


    const express = require('express');
  const ffmpeg  = require('fluent-ffmpeg');
  const fileUpload = require('express-fileupload');
  const cors   = require('cors')
  const app = express();

  app.use(fileUpload({
     useTempFiles: true,
     tempFileDir: 'temp/'
  }));
  app.use(express.json());
  app.use(express.urlencoded({ extended: true }));
  app.use(cors({ origin: 'http://localhost:4200' }));

  ffmpeg.setFfmpegPath('/usr/bin/ffmpeg');

  // Converting mp4 to audio
  app.post('/mp4tomp3', (req, res) => {
     res.contentType('video/avi');
     res.attachment('output.mp3');
     req.files.mp4.mv("temp/" + req.files.mp4.name , function(err) {
      if(err){
        res.sendStatus(500).send(err)
    }else{
        console.log("Fiel Uploaded Successfully.!");
    }
   });
     ffmpeg('temp/' + req.files.mp4.name)
       .toFormat('mp3')
       .on('end', function() {
            console.log('Done');
    })
   .on('error', function(err){
         console.log('An Error Occured' + err.message)
    })
    .pipe(res, {end: true})
  })

  app.listen(3000, () => {
    console.log('Server Start On Port 3000')
  })


  


  This code is working good when I use index.html file in the nodejs app but its give an error while I remove index.html file and use angular app for frontend then it give error in nodejs mp4 not defined and name mv is not defined Please tell me how I can implement it using angular framework

  


  This is my app.component.html file

  


     <div class="container">&#xA;     <h1>Video Proccessing App</h1>&#xA;     <form>&#xA;        <input type="file" formcontrolname="mp4" />&#xA;         <input type="submit" value="Convert" />&#xA;     </form>&#xA;  </div>&#xA;  &#xA;

  


  This is my app.component.ts file

  


       import { Component, OnInit } from '@angular/core';
     import { FormBuilder, FormGroup, Validators } from '@angular/forms';
     import { VideoConversionService } from 'src/services/video-conversion.service';

     @Component({
        selector: 'app-root',
        templateUrl: './app.component.html',
        styleUrls: ['./app.component.css']
     })
     export class AppComponent implements OnInit {

         submitted =false;
         form! : FormGroup
         data:any


        constructor(private formBuilder: FormBuilder,
        private videoService: VideoConversionService){}


       creatForm(){
          this.form = this.formBuilder.group({
          mp4: ['', Validators.required],
       });
      }
      ngOnInit(): void {
         this.creatForm();

      }


      convertVideo(){
          this.submitted = true
          this.videoService.conversion(this.form.value).subscribe(res => {
          this.data = res;
         // console.log(this.data)
         //console.log(this.form.value)
     })
     }

     }


  


  This is my service file for handling the backend api in my angular app

  


  import { Injectable } from '@angular/core';
import { HttpClient  } from '@angular/common/http';
@Injectable({
  providedIn: 'root'
})
export class VideoConversionService {

constructor(private httpClient: HttpClient) { }

conversion(data: any){
   return this.httpClient.post('http://localhost:3000/mp4tomp3', data)
}
}


  


  This is Screenshot of chrome error

  


  

  


  This is the screenshot of the nodejs app error while I click on the convert button

  


  

  


• Anomalie #4369 (En cours) : YQL n’est plus actif

  7 août 2019, par Ybbet SPIP

  Bonjour tout le monde,

  J’ai envoyé un message sur la liste SPIP-Dev. Je crée un ticket pour traçabilité.

  SPIP offre depuis la boucle DATA la source YQL. Cf. code ici : https://core.spip.net/projects/spip/repository/entry/spip/ecrire/iterateur/data.php#L642
  Malheureusement, le service est fermé depuis le 3 janvier 2019. cf. https://news.ycombinator.com/item?id=18785255

  Je n’ai pas trouvé de solutions alternatives équivalentes en ligne. Que du Desktop "freemium" quand une solution existe.
  Il existe https://vespa.ai/ qui est à installer sur une machine.
  Autre élément trouvé https://www.pipes.digital/
  Je ne suis pas sûr qu’on retrouve une souplesse telle que l’était YQL.

  Bien à vous,

• set permissions (PHP5) shell_exec("wine ffmpeg.exe") in ubuntu version 14

  22 mars 2019, par user235423423424

  How to start wine in php shell_exec("wine ffmpeg.exe"); ?

  (ubuntu version 14 server)
  

  install

  sudo apt-get install wine -y

  php5 code :

  $cmd = "/usr/bin/wine /var/www/html/ffmpeg.exe upload/image.jpg"
  
  shell_exec($cmd);

  ffmpeg.exe location :
  /var/www/html/

  wine is not starting ?

  Linux version of FFmpeg ?, how to run PHP shell_exec() ?

  Server domain is not on shared hosting

  permissions on www-data could be problem ?

  command ffmpeg successfull in terminal !
  

  there is a permission issue, just tested and command is correct.
  either ffmpeg.exe or wine have incorrect permissions.

  Command (ffmpeg.exe)

  chmod 755 ffmpeg.exe
  
  chown www-data ffmpeg.exe

  Command (/usr/bin/wine)

  chmod 755 wine
  
  chown www-data wine

  sudo service apache2 restart

  still not working, could be more ’wine’ files to apply permissions to.
  I’m not able to output any error, and command to ffmpeg is correct from terminal the problem must be permissions