如何在 Python 中使用 youtube-dl 提取所有 .mp4？

Question

我正在尝试编写一个 Python 脚本，该脚本可以提取 .mp4 文件格式的任何视频的下载链接。为此，我使用youtube-dl，但它以 .m3u8 文件格式返回视频链接。如何获得 .mp4 文件格式？

Answer 1

格式化mp4代码：

• 137: 1080p
• 136: 720p
• 135: 480p
• 134: 360p

• 133: 240p

  import youtube_dl
  
  url = 'https://twitter.com/PassengersMovie/status/821025484150423557'
  
  with youtube_dl.YoutubeDL({'format':'137'}) as ydl:
      ydl.download([url])
  

Answer 2

您可以使用以下脚本并仅编辑download_list。

import youtube_dl
from enum import Enum


class YLFormat(Enum):
    m4a = '140'  # audio only
    mp4_144p = '160'
    mp4_240p = '133'
    mp4_360p = '134'
    mp4_480p = '135'
    mp4_720p = '136'
    mp4_1080p = '137'
    gp3_176_144 = '17'  # 3gp: 176*144
    gp3_320_240 = '36'
    flv = '5'
    webm = '43'
    mp4_640_360 = '18'  # 640 * 360
    mp4_1280_720 = '22'


def download(url: str, options: dict):
    with youtube_dl.YoutubeDL(options) as ydl:
        ydl.download([url])


download_list = [  # edit this
    ('https://www.youtube.com/watch?v=vbttZVTSJRU', YLFormat.mp4_640_360, YLFormat.mp4_1280_720, ...),
]

for cur_data in download_list:
    cur_url, tuple_format = cur_data[0], cur_data[1:]
    for format_info in tuple_format:
        if not isinstance(format_info, YLFormat):
            print(f'the format is not correct. format: {format_info}')
            continue
        fmt_name, fmt = format_info.name, format_info.value
        try:
            download(cur_url, dict(format=fmt,
                                   outtmpl=f'%(title)s-{fmt_name}.%(ext)s',
                                   # ignoreerrors=True,
                                   # quiet=True
                                   ))
        except youtube_dl.utils.DownloadError:
            print(f'download error: {cur_url} | {fmt_name}')