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• Download youtube video as stream Readable object

  26 décembre 2023, par Abraam Emad

  in this function it download youtube video as a file out.mp4 on hard disk i need to download it as a Readable Object to upload it

  


  private async downloadVideo(videoId: string) {
// Buildin with nodejs
const cp = require('child_process');
const readline = require('readline');
// External modules
const ytdl = require('ytdl-core');
const ffmpeg = require('ffmpeg-static');
// Global constants
const ref = `https://www.youtube.com/watch?v=${videoId}`;
const tracker = {
  start: Date.now(),
  audio: { downloaded: 0, total: Infinity },
  video: { downloaded: 0, total: Infinity },
  merged: { frame: 0, speed: '0x', fps: 0 },
};

// Get audio and video streams
const audio = ytdl(ref, { quality: 'highestaudio' })
  .on('progress', (_, downloaded, total) => {
    tracker.audio = { downloaded, total };
  });
const video = ytdl(ref, { quality: 'highestvideo' })
  .on('progress', (_, downloaded, total) => {
    tracker.video = { downloaded, total };
  });

// Prepare the progress bar
let progressbarHandle = null;
const progressbarInterval = 1000;
const showProgress = () => {
  readline.cursorTo(process.stdout, 0);
  const toMB = i => (i / 1024 / 1024).toFixed(2);

  process.stdout.write(`Audio  | ${(tracker.audio.downloaded / tracker.audio.total * 100).toFixed(2)}% processed `);
  process.stdout.write(`(${toMB(tracker.audio.downloaded)}MB of ${toMB(tracker.audio.total)}MB).${' '.repeat(10)}\n`);

  process.stdout.write(`Video  | ${(tracker.video.downloaded / tracker.video.total * 100).toFixed(2)}% processed `);
  process.stdout.write(`(${toMB(tracker.video.downloaded)}MB of ${toMB(tracker.video.total)}MB).${' '.repeat(10)}\n`);

  process.stdout.write(`Merged | processing frame ${tracker.merged.frame} `);
  process.stdout.write(`(at ${tracker.merged.fps} fps => ${tracker.merged.speed}).${' '.repeat(10)}\n`);

  process.stdout.write(`running for: ${((Date.now() - tracker.start) / 1000 / 60).toFixed(2)} Minutes.`);
  readline.moveCursor(process.stdout, 0, -3);
};

// Start the ffmpeg child process
const ffmpegProcess = cp.spawn(ffmpeg, [
  // Remove ffmpeg's console spamming
  '-loglevel', '8', '-hide_banner',
  // Redirect/Enable progress messages
  '-progress', 'pipe:3',
  // Set inputs
  '-i', 'pipe:4',
  '-i', 'pipe:5',
  // Map audio & video from streams
  '-map', '0:a',
  '-map', '1:v',
  // Keep encoding
  '-c:v', 'copy',
  // Define output file
  '-f', 'mpegts', // Use MPEG-TS format for streaming
  'out.mp4'
], {
  windowsHide: true,
  stdio: [
    /* Standard: stdin, stdout, stderr */
    'inherit', 'inherit', 'inherit',
    /* Custom: pipe:3, pipe:4, pipe:5 */
    'pipe', 'pipe', 'pipe',
  ],
});
ffmpegProcess.on('close', () => {
  console.log('done');
  // Cleanup
  process.stdout.write('\n\n\n\n');
  clearInterval(progressbarHandle);
});
// Link streams
// FFmpeg creates the transformer streams and we just have to insert / read data
ffmpegProcess.stdio[3].on('data', chunk => {
  // Start the progress bar
  if (!progressbarHandle) progressbarHandle = setInterval(showProgress, progressbarInterval);
  // Parse the param=value list returned by ffmpeg
  const lines = chunk.toString().trim().split('\n');
  const args: any = {};
  for (const l of lines) {
    const [key, value] = l.split('=');
    args[key.trim()] = value.trim();
  }
  tracker.merged = args;
});
audio.pipe(ffmpegProcess.stdio[4]);
video.pipe(ffmpegProcess.stdio[5]);


  


  }`

  


• correct way to download a mp4 [Audio only] file as a mp3 file via php

  3 février 2018, par Kapil

  I am asking this question because i found it impossible as far my knowledge stands. However i believe here on stackoverflow a lot of genius persons visits so maybe someone can give a good advice / trick.

  My problem is, I am downloading a audio/mp4 file of youtube hosted on googlevideo.com’s server.

  My PHP code for this purpose :
  $mp3path is url of video

  header('Content-Description: File Transfer');
  
  if(strpos($mp3path, "https://") === false) {
  
      header('Content-length: ' . size($mp3path)); //size is custom function
  
  } 
  
      header("Content-Type: audio/MP4A-LATM, audio/MP4A, audio/m4a, audio/mp4, audio/mp4a, audio/mp4-audio, audio/mpeg"); 
  
      header('Content-Type: application/force-download');
  
      header("Accept-Ranges: bytes");
  
      header('Content-Transfer-Encoding: binary'); 
  
      header('Content-disposition: attachment; filename="'.$title.'.mp3"'); 
  
      header('Connection: Keep-Alive');
  
      header('Expires: 0');
  
      header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
  
      header('Last-Modified: ' . gmdate('D, d M Y H:i:s', time()) . ' GMT');
  
      header("Cache-Control: private", false);
  
      header('Pragma: no-cache');
  
      readfile($mp3path);
  
      exit;

  I can download this audio file but few mp3 players are not able to play it when i did some research on by using mp3val [mp3val.sourceforge.net]. I found this file do not contain sample-rate, bit-rate or some other required codecs inside the file.
  Error received from mp3val : Unknown file format

  I know one possible way of doing this which is ffmpeg but i am looking for a less time consuming option of doing this because first ffmpeg download the whole file and then convert it to mp3 and save it on server. It takes a lot of time.

  I am looking for a easiest solution in which, i dont want to save the whole file on my server. I want to call this file from remote server and want to add sample rate, bit-rate in the file and then just somehow with php i want to start download on browser.

  All i mean to say i need a faster solution. I have seen 2 yt to mp3 converter, They are doing the same thing, giving instant download. i dont know how ?

  Please if you think its a stupid question or not possible then dont report to stackoverflow. I am trying to figure it out that’s why i am asking this question here. I hope you’ll understand my curiosity.

  Thanks,

• How to build latest ffmpeg for android-ffmpeg project on github

  9 février 2015, par user2927954

  I am working on https://github.com/guardianproject/android-ffmpeg project.
  In this project, it uses ffmpeg version 0.11.1.
  How can i build this project with the latest ffmpeg version ?

  I try to delete ffmpeg folder in this project. Checkout the latest ffmpeg version in url : [git ://git.videolan.org/ffmpeg.git]. After that, i ran command ./configure_make_everything.sh as normal but i got error :

      File to patch: 
  
  Skip this patch? [y] 
  
  Skipping patch.
  
  3 out of 3 hunks ignored
  
  patching file libavutil/arm/intmath.h
  
  Reversed (or previously applied) patch detected!  Skipping patch.
  
  3 out of 3 hunks ignored
  
  patching file configure
  
  Reversed (or previously applied) patch detected!  Skipping patch.
  
  1 out of 1 hunk ignored
  
  ~/workspace/android-ffmpeg/ffmpeg ~/workspace/android-ffmpeg ~/workspace/android-ffmpeg
  
  **ERROR: freetype2 not found**
  
  
  
  If you think configure made a mistake, make sure you are using the latest
  
  version from Git.  If the latest version fails, report the problem to the
  
  ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
  
  Include the log file "config.log" produced by configure as this will help
  
  solving the problem.
  
  ~/workspace/android-ffmpeg ~/workspace/android-ffmpeg
  
  ~/workspace/android-ffmpeg
  
  ~/workspace/android-ffmpeg ~/workspace/android-ffmpeg
  
  ~/workspace/android-ffmpeg/ffmpeg ~/workspace/android-ffmpeg ~/workspace/android-ffmpeg
  
  Makefile:2: config.mak: No such file or directory
  
  Makefile:53: /common.mak: No such file or directory
  
  Makefile:93: /libavutil/Makefile: No such file or directory
  
  Makefile:93: /library.mak: No such file or directory
  
  Makefile:95: /doc/Makefile: No such file or directory
  
  Makefile:178: /tests/Makefile: No such file or directory
  
  make: *** No rule to make target `/tests/Makefile'.  Stop.
  
  Makefile:2: config.mak: No such file or directory
  
  Makefile:53: /common.mak: No such file or directory
  
  Makefile:93: /libavutil/Makefile: No such file or directory
  
  Makefile:93: /library.mak: No such file or directory
  
  Makefile:95: /doc/Makefile: No such file or directory
  
  Makefile:178: /tests/Makefile: No such file or directory
  
  make: *** No rule to make target `/tests/Makefile'.  Stop.
  
  ~/workspace/android-ffmpeg ~/workspace/android-ffmpeg
  
  ~/workspace/android-ffmpeg
  
  admin@ubuntu:~/workspace/android-ffmpeg$

  I got error : Freetype2 not found but if i build with the original ffmpeg include in this project, this error is not occur.

  How can i fix it ? Please help