Sur d’autres sites (5860)

• Getting Error while trying to download youtube video by using python

  23 octobre 2024, par Aditya Kumar

  Code

  


  I'm working on a script that allows users to manually select and download separate video and audio streams from YouTube using yt-dlp. The script lists the available video and audio formats, lets the user choose their desired formats, and then merges them using FFmpeg.

  


  Here’s the complete code :

  


  import yt_dlp
import os
import subprocess

# Function to list and allow manual selection of video and audio formats
def download_and_merge_video_audio_with_selection(url, download_path):
    try:
        # Ensure the download path exists
        if not os.path.exists(download_path):
            os.makedirs(download_path)

        # Get available formats from yt-dlp
        ydl_opts = {'listformats': True}

        with yt_dlp.YoutubeDL(ydl_opts) as ydl:
            info_dict = ydl.extract_info(url, download=False)
            formats = info_dict.get('formats', [])

        # List available video formats (video only)
        print("\nAvailable video formats:")
        video_formats = [f for f in formats if f.get('vcodec') != 'none' and f.get('acodec') == 'none']
        for idx, f in enumerate(video_formats):
            resolution = f.get('height', 'unknown')
            filesize = f.get('filesize', 'unknown')
            print(f"{idx}: Format code: {f['format_id']}, Resolution: {resolution}p, Size: {filesize} bytes")

        # Let user select the desired video format
        video_idx = int(input("\nEnter the number corresponding to the video format you want to download: "))
        video_format_code = video_formats[video_idx]['format_id']

        # List available audio formats (audio only)
        print("\nAvailable audio formats:")
        audio_formats = [f for f in formats if f.get('acodec') != 'none' and f.get('vcodec') == 'none']
        for idx, f in enumerate(audio_formats):
            abr = f.get('abr', 'unknown')  # Audio bitrate
            filesize = f.get('filesize', 'unknown')
            print(f"{idx}: Format code: {f['format_id']}, Audio Bitrate: {abr} kbps, Size: {filesize} bytes")

        # Let user select the desired audio format
        audio_idx = int(input("\nEnter the number corresponding to the audio format you want to download: "))
        audio_format_code = audio_formats[audio_idx]['format_id']

        # Video download options (based on user choice)
        video_opts = {
            'format': video_format_code,  # Download user-selected video format
            'outtmpl': os.path.join(download_path, 'video.%(ext)s'),  # Save video as video.mp4
        }

        # Audio download options (based on user choice)
        audio_opts = {
            'format': audio_format_code,  # Download user-selected audio format
            'outtmpl': os.path.join(download_path, 'audio.%(ext)s'),  # Save audio as audio.m4a
        }

        # Download the selected video format
        print("\nDownloading selected video format...")
        with yt_dlp.YoutubeDL(video_opts) as ydl_video:
            ydl_video.download([url])

        # Download the selected audio format
        print("\nDownloading selected audio format...")
        with yt_dlp.YoutubeDL(audio_opts) as ydl_audio:
            ydl_audio.download([url])

        # Paths to the downloaded video and audio files
        video_file = os.path.join(download_path, 'video.webm')  # Assuming best video will be .mp4
        audio_file = os.path.join(download_path, 'audio.m4a')  # Assuming best audio will be .m4a
        output_file = os.path.join(download_path, 'final_output.mp4')  # Final merged file

        # FFmpeg command to merge audio and video
        ffmpeg_cmd = [
            'ffmpeg', '-i', video_file, '-i', audio_file, '-c', 'copy', output_file
        ]

        # Run FFmpeg to merge audio and video
        print("\nMerging video and audio...")
        subprocess.run(ffmpeg_cmd, check=True)

        print(f"\nDownload and merging complete! Output file: {output_file}")

    except Exception as e:
        print(f"An error occurred: {e}")

# Example usage
video_url = "https://www.youtube.com/watch?v=SOwk8FhfEZY"  # Replace with your desired video URL
download_path = 'C:/Users/vinod/Downloads/VideoDownload'  # Replace with your desired download path
download_and_merge_video_audio_with_selection(video_url, download_path)



  


  Explanation :

  


  The script first lists all available video formats (video-only) and audio formats (audio-only) from a given YouTube URL.

  


  It allows the user to manually select their preferred video and audio formats.

  


  After downloading the selected formats, it merges the video and audio streams into a single file using FFmpeg.

  


  Error

  


  while trying to run above mentioned code , I am getting this error :

  


  Merging video and audio...
An error occurred: [WinError 2] The system cannot find the file specified


  


  Requirements :

  


  


  yt-dlp : pip install yt-dlp

  


  


  


  FFmpeg : Make sure you have FFmpeg installed and added to your system's PATH.

  


  


• Video created in FFMPEG on YouTube doesn't work

  10 mars 2023, par Mark

  There is a problem when working with FFMPEG and then uploading to YouTube.

  


  I have a video that is 4:15 long (255 seconds). When I create such a video in Adobe Premiere and upload it to YouTube, everything is fine. The problem occurs when I create such a video in FFMPEG. Before the HD versions are processed (>= 1080p) the video works fine, but when the HD versions appear, its duration on the scrollbar becomes 4:00 (240 seconds). If you go to the end of the video at 4:00, it continues to play for another 15 seconds.

  


  Here is an example of such a video clip : https://youtu.be/G_tMctEklM4

  


  Screenshot : https://i.stack.imgur.com/HxWs5.png

  


  I would be grateful for your help.

  


  UPD

  


  I think I figured out what the problem was.

  


  I took 5 video files of 25 seconds each and merged them. The resulting file is 125 seconds long, I uploaded it to YouTube - everything is fine. Then I tried to build my project - again, problems. Apparently, the problem is that I merged 42 files : 2 files for 20 seconds and 40 files for 5-6 seconds. These are not integers, here are some of the files :

  


  06.143000, 05.983000, 06.488000, 06.018000, 05.809000

  


  So, I understand FFMPEG rounds them down to integer number, and due to the fact that there are a lot of such files - 42, so there is a shift of 15-20 seconds (about 0.5 seconds from each file). But what to do with it I still do not understand.

  


  Related topic : https://www.reddit.com/r/ffmpeg/comments/e1o3hv/ffconcat_filter_with_millisecond_precision_how/f8qvztl/

  


  and this (???) : ffmpeg - avoid duration approximation of generated files

  


• 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]);


  


  }`