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• Adding Support for resuming download with FFMPEG ?

  5 février 2019, par INDIERs

  Currently i am using this to download hls streams with ffmpeg in android app

  ffmpeg -protocol_whitelist file,http,https,tcp,tls,crypto -i "input.m3u8" -codec copy video.mp4

  it is working as it should.

  In case of network lost, the file will be downloaded from BEGINNING which is ofc not good at all.

  I did some research but didn’t found anything great, just these never implemented ideas :

  First is get the duration of downloaded video file and then downloading the video from duration +0.1

  Result High chances of FrameLoss. Dropped.

  Second is to download all ts files one by one ofc using any downloader, using custom script, then concat them.

  Result : Okay but needs space double of origial filesize, Dropped.

  Third is to Download First segment Convert it to MP4 then download second segment convert to mp4 then concat with First Segment and so on... while Keeping records.

  Result : Nice One but repeating same task for more than 2000 time, will it be Okay ? .

  is there any better workaround for this ?

  I’ve already showed the logic i tried.

• How to download m3u8 to mkv in nodejs

  10 février 2019, par Gabgab2003

  Im trying to download an mkv file from an m3u8 stream. I have the m3u8 as url, but can download it to a file if need be. I would like to solve this only with node and node modules.

  I have already tried to use wget lib, but cant get ffmpeg (node library, not the standalone binary) to work with the file.

  if anyone is interested, the url im trying to download is this
  (Im writing a crunchyroll downloader application)

• Is there a way to stream download a mp3 file that is being converted on a nodejs server ?

  19 février 2019, par Thriskel

  I am looking for a way to send the url to the nodejs server and respond the user with the mp3 file download.

  I searched some examples, and read about requests and responses, but I am not sure what the problem really is.

  This is the Javascript for the HTML :

      var downloadBtn = document.querySelector('.download_button');
  
      var URLinput = document.querySelector('#myUrl');
  
  
  
      downloadBtn.addEventListener('click', () => {
  
          console.log(`URL: ${URLinput.value}`);
  
          sendURL(URLinput.value);
  
      });
  
  
  
      function sendURL(URL) {
  
          window.location.href = `http://localhost:4000/download?URL=${URL}`;
  
      }

  This is the Javascript for the Nodejs server :

  const express = require('express');
  
  const cors = require('cors');
  
  const ytdl = require('ytdl-core');
  
  const app = express();
  
  const ffmpeg = require('fluent-ffmpeg')
  
  app.use(cors());
  
  
  
  app.listen(4000, () => {
  
      console.log('Server Works !!! At port 4000');
  
  });
  
  
  
  app.get('/download', (req,res) => {
  
  var URL = req.query.URL;
  
  
  
  res.header('Content-Disposition', 'attachment; filename="file.mp3"');
  
  let stream = ytdl(URL, { 
  
    quality: 'highestaudio',
  
  }); //HERE THE STREAM FILE IS SELECTED TO BE CONVERTED TO MP3
  
  
  
  ffmpeg(stream)
  
    .audioBitrate(128)
  
    .pipe(res); // HERE IS CONVERTED AND WHERE I WANT IT TO SEND IT AS A DOWNLOAD TO THE USER.
  
  });

  I expected it to stream download the file but instead it gets me to the nodejs server page to /download/url_to_vid