Facebook - RegexNotFoundError: Unable to extract single video id

[someziggyman]

Checklist

• I'm reporting a broken site support
• I've verified that I'm running youtube-dl version 2020.09.20
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that all URLs and arguments with special characters are properly quoted or escaped
• I've searched the bugtracker for similar issues including closed ones

Verbose log

youtube-dl -v -F https://m.facebook.com/bakhtiar.kamal1/posts/10214187189745894 
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-v', u'-F', u'https://m.facebook.com/bakhtiar.kamal1/posts/10214187189745894']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2020.09.20
[debug] Python version 2.7.16 (CPython) - Darwin-18.7.0-x86_64-i386-64bit
[debug] exe versions: none
[debug] Proxy map: {}
[facebook] 10214187189745894: Downloading webpage
ERROR: Unable to extract single video id; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 797, in extract_info
    ie_result = ie.extract(url)
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 532, in extract
    ie_result = self._real_extract(url)
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/facebook.py", line 479, in _real_extract
    video_id = self._search_regex(r'video_id:\s*"([0-9]+)"', webpage, 'single video id')
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 1010, in _search_regex
    raise RegexNotFoundError('Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract single video id; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.

Description

'https://m.facebook.com/bakhtiar.kamal1/posts/10214187189745894

[october262]

try the video like this > youtube-dl --force-generic-extractor https://m.facebook.com/bakhtiar.kamal1/posts/10214187189745894

[someziggyman]

Thanks, youtube-dl --force-generic-extractor works, but I assume this is not how it's supposed to work out of the box. Some regex code refactoring is needed.

[sebma]

@october262 The generic extractor cannot not choose the best video format for the download.
For one of my videos, it downloads the 240p instead of the 720p :-(

[october262]

@october262 The generic extractor cannot not choose the best video format for the download
For one of my videos, it download the 240p instead of the 720p :-(

do you see 3 dots ... in the upper right corner of the video ??
it should give you an option to download & save the video

[sebma]

@october262 It's not really my video :-), but one of my friends.
And I don't have a FB account (and I don't want one :-) ).
The "..." in the upper right corner of the video proposes a menu with "Report video" and "Copy Link" items.
The "Copy Link" is not a direct link to the video stream :-(

[october262]

@october262 It's not really my video :-), but one of my friends.
And I don't have a FB account (and I don't want one :-) ).
The "..." in the upper right corner of the video proposes a menu with "Report video" and "Copy Link" items.
The "Copy Link" is not a direct link to the video stream :-(

try youtube-dl --force-generic-extractor -f best URL

[sebma]

@october262 It's not really my video :-), but one of my friends.
And I don't have a FB account (and I don't want one :-) ).
The "..." in the upper right corner of the video proposes a menu with "Report video" and "Copy Link" items.
The "Copy Link" is not a direct link to the video stream :-(

try youtube-dl --force-generic-extractor -f best URL

The only format available with the generic extractor is this one :

$ youtube-dl -F --force-generic-extractor https://www.facebook.com/100052997931710/posts/158984389211491 
[generic] 158984389211491: Requesting header
[generic] 158984389211491: Downloading webpage
[generic] 158984389211491: Extracting information
[info] Available formats for 158984389211491:
format code  extension  resolution note
0            mp4        720x1280   

[sebma]

But the resolution given is wrong because the 0 format downloads a video with a 240x426 that is 240p and NOT 720p

[october262]

But the resolution given is wrong because the 0 format downloads a video with a 240x426 that is 240p and NOT 720p

according to this - https://stackoverflow.com/questions/31631535/youtube-dl-dash-video-and-audio-in-highest-quality-without-human-intervention the bestvideo+bestaudio/best will get you the 720p version

try opening this link - https://www.facebook.com/100052997931710/videos/158983125878284/
in a new tab, click the three dots ... select copy URL then youtube-dl -F https://www.facebook.com/100052997931710/videos/158983125878284/
there you can select the available formats