자막이 없는 영상을 대상으로 자막 다운로드를 하면 컨테이너가 에러와 함께 먹통이 됩니다 rest api도 에러

[sruinz]

`

modenaf360-youtube-dl-nas1

date	stream	content
2025/07/14 06:51:40	stderr	IndexError: list index out of range
2025/07/14 06:51:40	stderr	sub_lang = url[2].split('|')[1]
2025/07/14 06:51:40	stderr	File "/usr/src/app/youtube-dl-server.py", line 527, in build_youtube_dl_cmd
2025/07/14 06:51:40	stderr	result = subprocess.run(build_youtube_dl_cmd(url))
2025/07/14 06:51:40	stderr	File "/usr/src/app/youtube-dl-server.py", line 726, in download_rest
2025/07/14 06:51:40	stderr	download_rest(item)
2025/07/14 06:51:40	stderr	File "/usr/src/app/youtube-dl-server.py", line 510, in dl_worker
2025/07/14 06:51:40	stderr	self._target(*self._args, **self._kwargs)
2025/07/14 06:51:40	stderr	File "/usr/local/lib/python3.10/threading.py", line 953, in run
2025/07/14 06:51:40	stderr	self.run()
2025/07/14 06:51:40	stderr	172.17.0.1 - - [2025-07-14 06:51:40] "POST /youtube-dl/rest HTTP/1.1" 200 192 0.001857
2025/07/14 06:51:40	stderr	File "/usr/local/lib/python3.10/threading.py", line 1016, in _bootstrap_inner
2025/07/14 06:51:40	stderr	Traceback (most recent call last):
2025/07/14 06:51:40	stderr	Exception in thread Thread-1 (dl_worker):
2025/07/14 06:51:14	stderr
2025/07/14 06:51:14	stderr	Hit Ctrl-C to quit.
2025/07/14 06:51:14	stderr	Listening on http://0.0.0.0:8080/
2025/07/14 06:51:14	stderr	Bottle v0.13.4 server starting up (using GeventWebSocketServer())...
2025/07/14 06:51:14	stdout	Loaded 0 history items
2025/07/14 06:51:14	stdout	Scheduler failed to start!
2025/07/14 06:51:14	stderr	For more details see ps(1).
2025/07/14 06:51:14	stderr
2025/07/14 06:51:14	stderr	for additional help text.
2025/07/14 06:51:14	stderr	or 'ps --help <s|l|o|t|m|a>'
2025/07/14 06:51:14	stderr	Try 'ps --help <simple|list|output|threads|misc|all>'
2025/07/14 06:51:14	stderr
2025/07/14 06:51:14	stderr	ps [options]
2025/07/14 06:51:14	stderr	Usage:
2025/07/14 06:51:14	stderr
2025/07/14 06:51:14	stderr	error: process ID list syntax error
2025/07/14 06:51:12	stderr	WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager, possibly rendering your system unusable. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv. Use the --root-user-action option if you know what you are doing and want to suppress this warning.
2025/07/14 06:51:12	stdout	Successfully installed nlptutti-0.0.0.10
2025/07/14 06:51:12	stdout	Successfully uninstalled nlptutti-0.0.0.9
2025/07/14 06:51:12	stdout	Uninstalling nlptutti-0.0.0.9:
2025/07/14 06:51:12	stdout	Found existing installation: nlptutti 0.0.0.9
2025/07/14 06:51:12	stdout	Attempting uninstall: nlptutti
2025/07/14 06:51:12	stdout	Installing collected packages: nlptutti
2025/07/14 06:51:12	stdout	Downloading nlptutti-0.0.0.10-py3-none-any.whl (11 kB)
2025/07/14 06:51:12	stdout	Requirement already satisfied: six>=1.5 in /usr/local/lib/python3.10/site-packages (from python-dateutil>=2.8.2->pandas->nlptutti->-r /usr/src/app/init_update.txt (line 3)) (1.17.0)
2025/07/14 06:51:12	stdout	Requirement already satisfied: tzdata>=2022.7 in /usr/local/lib/python3.10/site-packages (from pandas->nlptutti->-r /usr/src/app/init_update.txt (line 3)) (2025.2)
2025/07/14 06:51:12	stdout	Requirement already satisfied: pytz>=2020.1 in /usr/local/lib/python3.10/site-packages (from pandas->nlptutti->-r /usr/src/app/init_update.txt (line 3)) (2025.2)
2025/07/14 06:51:12	stdout	Requirement already satisfied: python-dateutil>=2.8.2 in /usr/local/lib/python3.10/site-packages (from pandas->nlptutti->-r /usr/src/app/init_update.txt (line 3)) (2.9.0.post0)
2025/07/14 06:51:12	stdout	Requirement already satisfied: numpy>=1.22.4 in /usr/local/lib/python3.10/site-packages (from pandas->nlptutti->-r /usr/src/app/init_update.txt (line 3)) (2.2.6)
2025/07/14 06:51:12	stdout	Requirement already satisfied: rapidfuzz>=3.9.7 in /usr/local/lib/python3.10/site-packages (from jiwer->nlptutti->-r /usr/src/app/init_update.txt (line 3)) (3.13.0)
2025/07/14 06:51:12	stdout	Requirement already satisfied: click>=8.1.8 in /usr/local/lib/python3.10/site-packages (from jiwer->nlptutti->-r /usr/src/app/init_update.txt (line 3)) (8.2.1)
2025/07/14 06:51:12	stdout	Requirement already satisfied: pandas in /usr/local/lib/python3.10/site-packages (from nlptutti->-r /usr/src/app/init_update.txt (line 3)) (2.3.0)
2025/07/14 06:51:12	stdout	Requirement already satisfied: jiwer in /usr/local/lib/python3.10/site-packages (from nlptutti->-r /usr/src/app/init_update.txt (line 3)) (4.0.0)
2025/07/14 06:51:12	stdout	Downloading nlptutti-0.0.0.10-py3-none-any.whl.metadata (14 kB)
2025/07/14 06:51:12	stdout	Collecting nlptutti (from -r /usr/src/app/init_update.txt (line 3))
2025/07/14 06:51:12	stdout	Requirement already satisfied: nlptutti in /usr/local/lib/python3.10/site-packages (from -r /usr/src/app/init_update.txt (line 3)) (0.0.0.9)
2025/07/14 06:51:12	stdout	Requirement already satisfied: yt-dlp in /usr/local/lib/python3.10/site-packages (from -r /usr/src/app/init_update.txt (line 2)) (2025.6.30)
2025/07/14 06:51:11	stdout	Requirement already satisfied: youtube-dl in /usr/local/lib/python3.10/site-packages (from -r /usr/src/app/init_update.txt (line 1)) (2021.12.17)
2025/07/14 06:51:10	stderr	WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv
2025/07/14 06:51:10	stdout	Successfully installed pip-25.1.1
2025/07/14 06:51:09	stdout	Successfully uninstalled pip-23.0.1
2025/07/14 06:51:09	stdout	Uninstalling pip-23.0.1:
2025/07/14 06:51:09	stdout	Found existing installation: pip 23.0.1
2025/07/14 06:51:09	stdout	Attempting uninstall: pip
2025/07/14 06:51:09	stdout	Installing collected packages: pip
2025/07/14 06:51:09	stdout	━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 1.8/1.8 MB 30.5 MB/s eta 0:00:00
2025/07/14 06:51:09	stdout	Downloading pip-25.1.1-py3-none-any.whl (1.8 MB)
2025/07/14 06:51:09	stdout	Collecting pip
2025/07/14 06:51:09	stdout	Requirement already satisfied: pip in /usr/local/lib/python3.10/site-packages (23.0.1)

`

시놀로지 컨테이너 로그 파일인데 rest api로 자막 다운로드를 시도 했을 때 이렇게 에러가 뜨고 컨테이너가 먹통이 되네요

`

modenaf360-youtube-dl-nas1

date	stream	content
2025/07/14 07:00:41	stdout	Loaded 1 history items
2025/07/14 07:00:41	stdout	Received: [REQUEST_HISTORY]
2025/07/14 07:00:40	stdout	WebSocket connected
2025/07/14 07:00:40	stdout	Sent history item 0: 해외 방송에서 모두를 속인 리사 #블랙핑크 #blackpink #kpop
2025/07/14 07:00:40	stdout	Sending 1 history items to new client
2025/07/14 07:00:40	stdout	Loaded 1 history items
2025/07/14 07:00:40	stdout	Client connected. Total clients: 1
2025/07/14 07:00:38	stdout	WebSocket disconnected
2025/07/14 07:00:38	stdout	Client disconnected. Total clients: 0
2025/07/14 06:59:08	stdout	Loaded 1 history items
2025/07/14 06:59:08	stdout	Received: [REQUEST_HISTORY]
2025/07/14 06:59:07	stdout	WebSocket connected
2025/07/14 06:59:07	stdout	Sent history item 0: 해외 방송에서 모두를 속인 리사 #블랙핑크 #blackpink #kpop
2025/07/14 06:59:07	stdout	Sending 1 history items to new client
2025/07/14 06:59:07	stdout	Loaded 1 history items
2025/07/14 06:59:07	stdout	Client connected. Total clients: 1
2025/07/14 06:59:05	stdout	WebSocket disconnected
2025/07/14 06:59:05	stdout	Client disconnected. Total clients: 0
2025/07/14 06:57:35	stdout	Loaded 1 history items
2025/07/14 06:57:35	stdout	Received: [REQUEST_HISTORY]
2025/07/14 06:57:34	stdout	WebSocket connected
2025/07/14 06:57:34	stdout	Sent history item 0: 해외 방송에서 모두를 속인 리사 #블랙핑크 #blackpink #kpop
2025/07/14 06:57:34	stdout	Sending 1 history items to new client
2025/07/14 06:57:34	stdout	Loaded 1 history items
2025/07/14 06:57:34	stdout	Client connected. Total clients: 1
2025/07/14 06:57:33	stdout	WebSocket disconnected
2025/07/14 06:57:33	stdout	Client disconnected. Total clients: 0
2025/07/14 06:56:54	stderr	172.17.0.1 - - [2025-07-14 06:56:54] "GET /static/downfolder/ HTTP/1.1" 404 894 0.000705
2025/07/14 06:56:47	stderr	172.17.0.1 - - [2025-07-14 06:56:47] "GET /static/downfolder/ HTTP/1.1" 404 894 0.002076
2025/07/14 06:56:03	stdout	Download error: list index out of range
2025/07/14 06:56:03	stdout	Thumbnail extracted: https://i.ytimg.com/vi/vwWvo7bZLt4/maxresdefault.jpg
2025/07/14 06:55:52	stdout	Title extracted: 해외 방송에서 모두를 속인 리사 #블랙핑크 #blackpink #kpop
2025/07/14 06:55:46	stderr	172.17.0.1 - - [2025-07-14 06:55:46] "POST /youtube-dl/q HTTP/1.1" 200 175 0.001715
2025/07/14 06:55:40	stdout	Loaded 0 history items
2025/07/14 06:55:40	stdout	Received: [REQUEST_HISTORY]
2025/07/14 06:55:40	stdout	WebSocket connected
2025/07/14 06:55:40	stdout	Sending 0 history items to new client
2025/07/14 06:55:40	stdout	Loaded 0 history items
2025/07/14 06:55:40	stdout	Client connected. Total clients: 1
2025/07/14 06:55:40	stdout	WebSocket disconnected
2025/07/14 06:55:40	stdout	Client disconnected. Total clients: 0
2025/07/14 06:55:40	stderr	172.17.0.1 - - [2025-07-14 06:55:40] "GET /youtube-dl HTTP/1.1" 200 18079 0.004308
2025/07/14 06:55:40	stdout	CHK :  test
2025/07/14 06:55:40	stderr	172.17.0.1 - - [2025-07-14 06:55:40] "POST /login HTTP/1.1" 303 296 0.001785
2025/07/14 06:55:38	stdout	Loaded 0 history items
2025/07/14 06:55:38	stdout	Received: [REQUEST_HISTORY]
2025/07/14 06:55:38	stdout	WebSocket connected
2025/07/14 06:55:38	stdout	Sending 0 history items to new client
2025/07/14 06:55:38	stdout	Loaded 0 history items
2025/07/14 06:55:38	stdout	Client connected. Total clients: 1
2025/07/14 06:55:38	stderr	172.17.0.1 - - [2025-07-14 06:55:38] "GET / HTTP/1.1" 200 2106 0.001493
2025/07/14 06:55:38	stderr	% if msg is not '':
2025/07/14 06:55:38	stderr	/usr/src/app/static/template/login.tpl:30: SyntaxWarning: "is not" with a literal. Did you mean "!="?
2025/07/14 06:55:38	stderr	172.17.0.1 - - [2025-07-14 06:55:38] "POST /accept-terms HTTP/1.1" 200 125 0.001287
2025/07/14 06:55:35	stdout	WebSocket disconnected
2025/07/14 06:55:35	stdout	Client disconnected. Total clients: 0
2025/07/14 06:55:35	stderr	172.17.0.1 - - [2025-07-14 06:55:35] "GET /terms HTTP/1.1" 200 6060 0.006685
2025/07/14 06:55:35	stderr	172.17.0.1 - - [2025-07-14 06:55:35] "GET /youtube-dl HTTP/1.1" 303 169 0.001628
2025/07/14 06:55:35	stdout	Error checking terms acceptance:
2025/07/14 06:55:34	stdout	Loaded 0 history items
2025/07/14 06:55:34	stdout	Received: [REQUEST_HISTORY]
2025/07/14 06:55:34	stdout	WebSocket connected
2025/07/14 06:55:34	stdout	Sending 0 history items to new client
2025/07/14 06:55:34	stdout	Loaded 0 history items
2025/07/14 06:55:34	stdout	Client connected. Total clients: 1
2025/07/14 06:55:31	stderr
2025/07/14 06:55:31	stderr	Hit Ctrl-C to quit.
2025/07/14 06:55:31	stderr	Listening on http://0.0.0.0:8080/
2025/07/14 06:55:31	stderr	Bottle v0.13.4 server starting up (using GeventWebSocketServer())...
2025/07/14 06:55:31	stdout	Loaded 0 history items
2025/07/14 06:55:30	stderr	For more details see ps(1).
2025/07/14 06:55:30	stderr
2025/07/14 06:55:30	stderr	for additional help text.
2025/07/14 06:55:30	stderr	or 'ps --help <s|l|o|t|m|a>'
2025/07/14 06:55:30	stderr	Try 'ps --help <simple|list|output|threads|misc|all>'
2025/07/14 06:55:30	stderr
2025/07/14 06:55:30	stderr	ps [options]
2025/07/14 06:55:30	stderr	Usage:
2025/07/14 06:55:30	stderr
2025/07/14 06:55:30	stdout	Scheduler failed to start!
2025/07/14 06:55:30	stderr	error: process ID list syntax error
2025/07/14 06:55:28	stderr	WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager, possibly rendering your system unusable. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv. Use the --root-user-action option if you know what you are doing and want to suppress this warning.
2025/07/14 06:55:28	stdout	Successfully installed nlptutti-0.0.0.10
2025/07/14 06:55:28	stdout	Successfully uninstalled nlptutti-0.0.0.9
2025/07/14 06:55:28	stdout	Uninstalling nlptutti-0.0.0.9:
2025/07/14 06:55:28	stdout	Found existing installation: nlptutti 0.0.0.9
2025/07/14 06:55:28	stdout	Attempting uninstall: nlptutti
2025/07/14 06:55:28	stdout	Installing collected packages: nlptutti
2025/07/14 06:55:28	stdout	Downloading nlptutti-0.0.0.10-py3-none-any.whl (11 kB)
2025/07/14 06:55:28	stdout	Requirement already satisfied: six>=1.5 in /usr/local/lib/python3.10/site-packages (from python-dateutil>=2.8.2->pandas->nlptutti->-r /usr/src/app/init_update.txt (line 3)) (1.17.0)
2025/07/14 06:55:28	stdout	Requirement already satisfied: tzdata>=2022.7 in /usr/local/lib/python3.10/site-packages (from pandas->nlptutti->-r /usr/src/app/init_update.txt (line 3)) (2025.2)
2025/07/14 06:55:28	stdout	Requirement already satisfied: pytz>=2020.1 in /usr/local/lib/python3.10/site-packages (from pandas->nlptutti->-r /usr/src/app/init_update.txt (line 3)) (2025.2)
2025/07/14 06:55:28	stdout	Requirement already satisfied: python-dateutil>=2.8.2 in /usr/local/lib/python3.10/site-packages (from pandas->nlptutti->-r /usr/src/app/init_update.txt (line 3)) (2.9.0.post0)
2025/07/14 06:55:28	stdout	Requirement already satisfied: numpy>=1.22.4 in /usr/local/lib/python3.10/site-packages (from pandas->nlptutti->-r /usr/src/app/init_update.txt (line 3)) (2.2.6)
2025/07/14 06:55:28	stdout	Requirement already satisfied: rapidfuzz>=3.9.7 in /usr/local/lib/python3.10/site-packages (from jiwer->nlptutti->-r /usr/src/app/init_update.txt (line 3)) (3.13.0)
2025/07/14 06:55:28	stdout	Requirement already satisfied: click>=8.1.8 in /usr/local/lib/python3.10/site-packages (from jiwer->nlptutti->-r /usr/src/app/init_update.txt (line 3)) (8.2.1)
2025/07/14 06:55:28	stdout	Requirement already satisfied: pandas in /usr/local/lib/python3.10/site-packages (from nlptutti->-r /usr/src/app/init_update.txt (line 3)) (2.3.0)
2025/07/14 06:55:28	stdout	Requirement already satisfied: jiwer in /usr/local/lib/python3.10/site-packages (from nlptutti->-r /usr/src/app/init_update.txt (line 3)) (4.0.0)
2025/07/14 06:55:28	stdout	Downloading nlptutti-0.0.0.10-py3-none-any.whl.metadata (14 kB)
2025/07/14 06:55:28	stdout	Collecting nlptutti (from -r /usr/src/app/init_update.txt (line 3))
2025/07/14 06:55:28	stdout	Requirement already satisfied: nlptutti in /usr/local/lib/python3.10/site-packages (from -r /usr/src/app/init_update.txt (line 3)) (0.0.0.9)
2025/07/14 06:55:28	stdout	Requirement already satisfied: yt-dlp in /usr/local/lib/python3.10/site-packages (from -r /usr/src/app/init_update.txt (line 2)) (2025.6.30)
2025/07/14 06:55:28	stdout	Requirement already satisfied: youtube-dl in /usr/local/lib/python3.10/site-packages (from -r /usr/src/app/init_update.txt (line 1)) (2021.12.17)
2025/07/14 06:55:27	stderr	WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv
2025/07/14 06:55:27	stdout	Successfully installed pip-25.1.1
2025/07/14 06:55:26	stdout	Successfully uninstalled pip-23.0.1
2025/07/14 06:55:26	stdout	Uninstalling pip-23.0.1:
2025/07/14 06:55:25	stdout	Found existing installation: pip 23.0.1
2025/07/14 06:55:25	stdout	Attempting uninstall: pip
2025/07/14 06:55:25	stdout	Installing collected packages: pip
2025/07/14 06:55:25	stdout	━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 1.8/1.8 MB 42.9 MB/s eta 0:00:00
2025/07/14 06:55:25	stdout	Downloading pip-25.1.1-py3-none-any.whl (1.8 MB)
2025/07/14 06:55:25	stdout	Collecting pip
2025/07/14 06:55:25	stdout	Requirement already satisfied: pip in /usr/local/lib/python3.10/site-packages (23.0.1)

`

웹UI 에서 자막 다운로드를 시도 했을 때의 로그는 이렇게 표시 됩니다

유튜브 쇼츠 영상을 대상으로 시도 해봤는데 자막이 없어서 그런 건지 다른 문제가 있는 건지 모르겠네요
다운로드가 안되는 경우라면 실패 처리하고 넘어가야 할 거 같습니다

[hyeonsangjeon]

안녕하세요.
이슈 제보해주셔서 감사합니다. 크롬 extension을 만드셨네요. 로그에 나온 쇼츠 URL로 테스트해봤는데, 웹에서는 정상 동작하는 것으로 보입니다.
sub_lang은 화면에 하드코딩된 아래 부분이고, yt-dlp를 수행하기 전 UI에서 보내는 변수인데요. 현재는 VTT, SRT 텝 선택하면 반응형으로 오른쪽 submit버튼 왼쪽에 1번 인덱스인 서브언어 텝이 보이도록 되어있습니다.
웹에서는 VTT,SRT선택시 필수 값이 되어버린게 API에서 문제가 되나봅니다.

링크 참조

 <input name="url" id="url" type="url" class="form-control" placeholder="URL">
                            <!-- 자막 언어 선택 박스 (처음에는 숨김) -->
                            <span class="input-group-btn" id="subtitleLanguageContainer" style="display: none;">
                                <select title="Pick a subtitle language" id="selSubtitleLanguage" class="form-control" style="width:120px;">                                    
                                    <option value="en">English</option>
                                    <option value="ko">Korean</option>
                                    <option value="ja">Japanese</option>

REST-API에서 언어 flag를 안보내면서 값이 없을때 에러나 나는걸로 보입니다. REST-API에 해당 변수가 없다면 '400 Bad Request' response error로 응답하도록 처리해야할듯합니다.

PS. 그것도 있는데, 추가로 공유해주신 로그를 보니 스케줄러 서브프로세스 로깅에서도 정상 동작하더라도 무조건 "Scheduler failed to start!"를 출력하는 문제가 있네요. 이 부분도 함께 수정이 필요해 보입니다.
아쉽게도 제가 2주간 한국에 없어서 즉시 수정은 어려울 것 같습니다. 누군가 pull request를 해주시면 정말 감사하겠지만, 그렇지 않으면 다음 업데이트 사이클에 포함시키겠습니다.

수정 예정 사항:

1. 자막 포맷 변수 누락에 대한 rest-api 적절한 예외 처리
2. 스케줄러 로깅 이슈 수정

프로젝트 개선에 도움을 주셔서 고맙습니다.

[sruinz]

수고가 많으십니다

우선 확장 프로그램을 수정해서 언어 코드와 함께 rest API 요청을 하니 정상 다운로드가 됩니다

감사합니다