youtube.com #14474

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opened 2026-02-21 07:44:17 -05:00 by deekerman · 1 comment

deekerman commented

2026-02-21 07:44:17 -05:00

Owner

Originally created by @sfilie03 on GitHub (Sep 7, 2018).

I've verified and I assure that I'm running youtube-dl 2018.09.01
At least skimmed through the README, most notably the FAQ and BUGS sections
Searched the bugtracker for similar issues including closed ones
Checked that provided video/audio/playlist URLs (if any) are alive and playable in a browser
Question

C:\Users\Computer User\Downloads>youtube-dl -v https://www.youtube.com/watch?v=Z
i_XLOBDo_Y
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', 'https://www.youtube.com/watch?v=Zi_XLOBDo_Y']

[debug] Encodings: locale cp1252, fs mbcs, out cp437, pref cp1252
[debug] youtube-dl version 2018.09.01
[debug] Python version 3.4.4 (CPython) - Windows-7-6.1.7601-SP1
[debug] exe versions: avconv 11.3, avprobe 11.3, ffmpeg N-83657-g7e4f32f, ffprob
e N-83657-g7e4f32f
[debug] Proxy map: {}
[youtube] Zi_XLOBDo_Y: Downloading webpage
[youtube] Zi_XLOBDo_Y: Downloading video info webpage
[youtube] {43} signature length 41.42, html5 player vflvABTsY
[youtube] Zi_XLOBDo_Y: Downloading player https://www.youtube.com/yts/jsbin/play
er-vflvABTsY/en_US/base.js
ERROR: Signature extraction failed: Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu
ild\youtube_dl\extractor\youtube.py", line 1210, in _decrypt_signature
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu
ild\youtube_dl\extractor\youtube.py", line 1121, in _extract_signature_function
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu
ild\youtube_dl\extractor\youtube.py", line 1182, in _parse_sig_js
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu
ild\youtube_dl\extractor\common.py", line 972, in _search_regex
youtube_dl.utils.RegexNotFoundError: Unable to extract Initial JS player signatu
re function name; 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 cal
l youtube-dl with the --verbose flag and include its complete output.
 (caused by RegexNotFoundError('Unable to extract Initial JS player signature fu
nction name; please report this issue on https://yt-dl.org/bug . Make sure you a
re using the latest version; type  youtube-dl -U  to update. Be sure to call you
tube-dl with the --verbose flag and include its complete output.',)); please rep
ort this issue on https://yt-dl.org/bug . Make sure you are using the latest ver
sion; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --verb
ose flag and include its complete output.
Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu
ild\youtube_dl\extractor\youtube.py", line 1210, in _decrypt_signature
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu
ild\youtube_dl\extractor\youtube.py", line 1121, in _extract_signature_function
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu
ild\youtube_dl\extractor\youtube.py", line 1182, in _parse_sig_js
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu
ild\youtube_dl\extractor\common.py", line 972, in _search_regex
youtube_dl.utils.RegexNotFoundError: Unable to extract Initial JS player signatu
re function name; 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 cal
l youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu
ild\youtube_dl\extractor\youtube.py", line 1210, in _decrypt_signature
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu
ild\youtube_dl\extractor\youtube.py", line 1121, in _extract_signature_function
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu
ild\youtube_dl\extractor\youtube.py", line 1182, in _parse_sig_js
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu
ild\youtube_dl\extractor\common.py", line 972, in _search_regex
youtube_dl.utils.RegexNotFoundError: Unable to extract Initial JS player signatu
re function name; 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 cal
l youtube-dl with the --verbose flag and include its complete output.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu
ild\youtube_dl\YoutubeDL.py", line 792, in extract_info
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu
ild\youtube_dl\extractor\common.py", line 502, in extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu
ild\youtube_dl\extractor\youtube.py", line 1803, in _real_extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu
ild\youtube_dl\extractor\youtube.py", line 1220, in _decrypt_signature
youtube_dl.utils.ExtractorError: Signature extraction failed: Traceback (most re
cent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu
ild\youtube_dl\extractor\youtube.py", line 1210, in _decrypt_signature
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu
ild\youtube_dl\extractor\youtube.py", line 1121, in _extract_signature_function
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu
ild\youtube_dl\extractor\youtube.py", line 1182, in _parse_sig_js
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu
ild\youtube_dl\extractor\common.py", line 972, in _search_regex
youtube_dl.utils.RegexNotFoundError: Unable to extract Initial JS player signatu
re function name; 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 cal
l youtube-dl with the --verbose flag and include its complete output.
 (caused by RegexNotFoundError('Unable to extract Initial JS player signature fu
nction name; please report this issue on https://yt-dl.org/bug . Make sure you a
re using the latest version; type  youtube-dl -U  to update. Be sure to call you
tube-dl with the --verbose flag and include its complete output.',)); please rep
ort this issue on https://yt-dl.org/bug . Make sure you are using the latest ver
sion; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --verb
ose flag and include its complete output.


C:\Users\Computer User\Downloads>
...

When you download a 480p .mp4 video with youtube video and audio downloader and other youtube downloaders for this video "https://www.youtube.com/watch?v=Zi_XLOBDo_Y" from youtube, it downloads properly as an .mp4 in 640x480 resolution, but when you use youtube-dl to download it, it downloads as an .mp4 in 480x360 resolution, so how to do get youtube-dl to download it properly in the correct 640x480 resolution? If other youtube downloaders that can easily download and convert it in the correct resolution, youtube-dl should be able to as well, and it used to download it properly in the correct resolution a while ago. You should fix that. Thanks.

Originally created by @sfilie03 on GitHub (Sep 7, 2018). - [x] I've **verified** and **I assure** that I'm running youtube-dl **2018.09.01** - [x] At least skimmed through the [README](https://github.com/rg3/youtube-dl/blob/master/README.md), **most notably** the [FAQ](https://github.com/rg3/youtube-dl#faq) and [BUGS](https://github.com/rg3/youtube-dl#bugs) sections - [x] [Searched](https://github.com/rg3/youtube-dl/search?type=Issues) the bugtracker for similar issues including closed ones - [x] Checked that provided video/audio/playlist URLs (if any) are alive and playable in a browser - [x] Question ``` C:\Users\Computer User\Downloads>youtube-dl -v https://www.youtube.com/watch?v=Z i_XLOBDo_Y [debug] System config: [] [debug] User config: [] [debug] Custom config: [] [debug] Command-line args: ['-v', 'https://www.youtube.com/watch?v=Zi_XLOBDo_Y'] [debug] Encodings: locale cp1252, fs mbcs, out cp437, pref cp1252 [debug] youtube-dl version 2018.09.01 [debug] Python version 3.4.4 (CPython) - Windows-7-6.1.7601-SP1 [debug] exe versions: avconv 11.3, avprobe 11.3, ffmpeg N-83657-g7e4f32f, ffprob e N-83657-g7e4f32f [debug] Proxy map: {} [youtube] Zi_XLOBDo_Y: Downloading webpage [youtube] Zi_XLOBDo_Y: Downloading video info webpage [youtube] {43} signature length 41.42, html5 player vflvABTsY [youtube] Zi_XLOBDo_Y: Downloading player https://www.youtube.com/yts/jsbin/play er-vflvABTsY/en_US/base.js ERROR: Signature extraction failed: Traceback (most recent call last): File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu ild\youtube_dl\extractor\youtube.py", line 1210, in _decrypt_signature File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu ild\youtube_dl\extractor\youtube.py", line 1121, in _extract_signature_function File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu ild\youtube_dl\extractor\youtube.py", line 1182, in _parse_sig_js File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu ild\youtube_dl\extractor\common.py", line 972, in _search_regex youtube_dl.utils.RegexNotFoundError: Unable to extract Initial JS player signatu re function name; 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 cal l youtube-dl with the --verbose flag and include its complete output. (caused by RegexNotFoundError('Unable to extract Initial JS player signature fu nction name; please report this issue on https://yt-dl.org/bug . Make sure you a re using the latest version; type youtube-dl -U to update. Be sure to call you tube-dl with the --verbose flag and include its complete output.',)); please rep ort this issue on https://yt-dl.org/bug . Make sure you are using the latest ver sion; type youtube-dl -U to update. Be sure to call youtube-dl with the --verb ose flag and include its complete output. Traceback (most recent call last): File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu ild\youtube_dl\extractor\youtube.py", line 1210, in _decrypt_signature File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu ild\youtube_dl\extractor\youtube.py", line 1121, in _extract_signature_function File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu ild\youtube_dl\extractor\youtube.py", line 1182, in _parse_sig_js File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu ild\youtube_dl\extractor\common.py", line 972, in _search_regex youtube_dl.utils.RegexNotFoundError: Unable to extract Initial JS player signatu re function name; 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 cal l youtube-dl with the --verbose flag and include its complete output. Traceback (most recent call last): File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu ild\youtube_dl\extractor\youtube.py", line 1210, in _decrypt_signature File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu ild\youtube_dl\extractor\youtube.py", line 1121, in _extract_signature_function File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu ild\youtube_dl\extractor\youtube.py", line 1182, in _parse_sig_js File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu ild\youtube_dl\extractor\common.py", line 972, in _search_regex youtube_dl.utils.RegexNotFoundError: Unable to extract Initial JS player signatu re function name; 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 cal l youtube-dl with the --verbose flag and include its complete output. During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu ild\youtube_dl\YoutubeDL.py", line 792, in extract_info File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu ild\youtube_dl\extractor\common.py", line 502, in extract File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu ild\youtube_dl\extractor\youtube.py", line 1803, in _real_extract File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu ild\youtube_dl\extractor\youtube.py", line 1220, in _decrypt_signature youtube_dl.utils.ExtractorError: Signature extraction failed: Traceback (most re cent call last): File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu ild\youtube_dl\extractor\youtube.py", line 1210, in _decrypt_signature File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu ild\youtube_dl\extractor\youtube.py", line 1121, in _extract_signature_function File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu ild\youtube_dl\extractor\youtube.py", line 1182, in _parse_sig_js File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpkzpz548c\bu ild\youtube_dl\extractor\common.py", line 972, in _search_regex youtube_dl.utils.RegexNotFoundError: Unable to extract Initial JS player signatu re function name; 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 cal l youtube-dl with the --verbose flag and include its complete output. (caused by RegexNotFoundError('Unable to extract Initial JS player signature fu nction name; please report this issue on https://yt-dl.org/bug . Make sure you a re using the latest version; type youtube-dl -U to update. Be sure to call you tube-dl with the --verbose flag and include its complete output.',)); please rep ort this issue on https://yt-dl.org/bug . Make sure you are using the latest ver sion; type youtube-dl -U to update. Be sure to call youtube-dl with the --verb ose flag and include its complete output. C:\Users\Computer User\Downloads> ... When you download a 480p .mp4 video with youtube video and audio downloader and other youtube downloaders for this video "https://www.youtube.com/watch?v=Zi_XLOBDo_Y" from youtube, it downloads properly as an .mp4 in 640x480 resolution, but when you use youtube-dl to download it, it downloads as an .mp4 in 480x360 resolution, so how to do get youtube-dl to download it properly in the correct 640x480 resolution? If other youtube downloaders that can easily download and convert it in the correct resolution, youtube-dl should be able to as well, and it used to download it properly in the correct resolution a while ago. You should fix that. Thanks.

deekerman

2026-02-21 07:44:17 -05:00

closed this issue
added the
duplicate
label

deekerman commented

2026-02-21 07:44:21 -05:00

Author

Owner

@ghost commented on GitHub (Sep 7, 2018):

Duplicate Issue #17457

@ghost commented on GitHub (Sep 7, 2018): Duplicate Issue [#17457](https://github.com/rg3/youtube-dl/issues/17457)

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starred/youtube-dl-ytdl-org#14474

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