youtube-dl --verbose -f mp4 -l 'https://www.youtube.com/watch?v=G4QzM9KqCQU' fails

[shlomif]

Hi all.

The command:

«
youtube-dl --verbose -f mp4 -l 'https://www.youtube.com/watch?v=G4QzM9KqCQU'
»

(And all other commands with a different -f I tried) fails. Here is the output:

[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['--verbose', '-f', 'mp4', '-l', 'https://www.youtube.com/watch?v=G4QzM9KqCQU']
[debug] Encodings: locale UTF-8, fs UTF-8, out None, pref UTF-8
[debug] youtube-dl version 2014.07.23.2
[debug] Python version 2.7.6 - Linux-3.15.2-desktop-2.mga5-x86_64-with-mandrake-5-Cauldron
[debug] Proxy map: {}
[youtube] Setting language
[youtube] G4QzM9KqCQU: Downloading webpage
[youtube] G4QzM9KqCQU: Downloading video info webpage
[youtube] G4QzM9KqCQU: Extracting video information
[youtube] G4QzM9KqCQU: Encrypted signatures detected.
[youtube] encrypted signature length 83 (55.27), itag 22, html5 player en_US-vfl9FYC6l
[youtube] G4QzM9KqCQU: Downloading js player vfl9FYC6l
WARNING: Writing cache to u'/home/shlomif/.cache/youtube-dl/youtube-sigfuncs/js_vfl9FYC6l_83.json' failed: Traceback (most recent call last):
  File "/home/shlomif/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 392, in _extract_signature_function
    cache_res = res(test_string)
  File "/home/shlomif/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 450, in <lambda>
    return lambda s: initial_function([s])
  File "/home/shlomif/bin/youtube-dl/youtube_dl/jsinterp.py", line 148, in resf
    res = self.interpret_statement(stmt, local_vars)
  File "/home/shlomif/bin/youtube-dl/youtube_dl/jsinterp.py", line 44, in interpret_statement
    'Cannot determine left side of statement in %r' % stmt)
ExtractorError: Cannot determine left side of statement in u'jo.Dv(a,28)'; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type  youtube-dl -U  to update.

ERROR: Automatic signature extraction failed: Traceback (most recent call last):
  File "/home/shlomif/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 477, in _decrypt_signature
    return func(s)
  File "/home/shlomif/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 450, in <lambda>
    return lambda s: initial_function([s])
  File "/home/shlomif/bin/youtube-dl/youtube_dl/jsinterp.py", line 148, in resf
    res = self.interpret_statement(stmt, local_vars)
  File "/home/shlomif/bin/youtube-dl/youtube_dl/jsinterp.py", line 44, in interpret_statement
    'Cannot determine left side of statement in %r' % stmt)
ExtractorError: Cannot determine left side of statement in u'jo.Dv(a,28)'; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type  youtube-dl -U  to update.
; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type  youtube-dl -U  to update.
Traceback (most recent call last):
  File "/home/shlomif/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 477, in _decrypt_signature
    return func(s)
  File "/home/shlomif/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 450, in <lambda>
    return lambda s: initial_function([s])
  File "/home/shlomif/bin/youtube-dl/youtube_dl/jsinterp.py", line 148, in resf
    res = self.interpret_statement(stmt, local_vars)
  File "/home/shlomif/bin/youtube-dl/youtube_dl/jsinterp.py", line 44, in interpret_statement
    'Cannot determine left side of statement in %r' % stmt)
ExtractorError: Cannot determine left side of statement in u'jo.Dv(a,28)'; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type  youtube-dl -U  to update.
Traceback (most recent call last):
  File "/home/shlomif/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 516, in extract_info
    ie_result = ie.extract(url)
  File "/home/shlomif/bin/youtube-dl/youtube_dl/extractor/common.py", line 169, in extract
    return self._real_extract(url)
  File "/home/shlomif/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 847, in _real_extract
    encrypted_sig, video_id, player_url, age_gate)
  File "/home/shlomif/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 481, in _decrypt_signature
    u'Automatic signature extraction failed: ' + tb, cause=e)
ExtractorError: Automatic signature extraction failed: Traceback (most recent call last):
  File "/home/shlomif/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 477, in _decrypt_signature
    return func(s)
  File "/home/shlomif/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 450, in <lambda>
    return lambda s: initial_function([s])
  File "/home/shlomif/bin/youtube-dl/youtube_dl/jsinterp.py", line 148, in resf
    res = self.interpret_statement(stmt, local_vars)
  File "/home/shlomif/bin/youtube-dl/youtube_dl/jsinterp.py", line 44, in interpret_statement
    'Cannot determine left side of statement in %r' % stmt)
ExtractorError: Cannot determine left side of statement in u'jo.Dv(a,28)'; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type  youtube-dl -U  to update.
; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type  youtube-dl -U  to update.

[jaimeMF]

Duplicate of #3334.

[phihag]

Support for the new YouTube player has been added in youtube-dl version 2014.07.24. Type youtube-dl -U to update.

[shlomif]

@phihag : great! Thanks! It's working now.