Subtitleedit: ubuntu 20.04 docker: subtitle edit 3.5.18 doesn't set -l eng

[depeo]

Hi,

Trying to run subtitle edit in Ubuntu 20.4 with docker.
MONO_LOG_LEVEL="debug" MONO_LOG_MASK="all" xvfb-run -a mono /app/se/SubtitleEdit.exe /convert "Some subtitle file.eng.sup" subrip /FixCommonErrors >log
It just get stuck on OCR... : 0%
I get this error:
Mono: process_create: Exec prog [/usr/bin/tesseract] args ["/tmp/8afea31f-94ef-4daf-a4db-4ab4527be8aa.png" "/tmp/bec771bf-b841-4f21-8b27-9e7038e7624b" -l -psm 6 hocr]
It doesnt set -l eng in the tesseract command, which causes it to exit with error status 1

Running tesseract manually without -l eng:
$ tesseract phototest-rotated-R.png output -l -psm 6 hocr

Error opening data file /usr/share/tesseract-ocr/4.00/tessdata/-psm.traineddata
Please make sure the TESSDATA_PREFIX environment variable is set to your "tessdata" directory.
Failed loading language '-psm'
Tesseract couldn't load any languages!
Could not initialize tesseract.

Any ideas how to solve it?

[niksedk]

thx for the info - I've tried to fix it here: https://github.com/SubtitleEdit/subtitleedit/releases/download/3.5.18/SubtitleEditBeta.zip
Does that work?
(I'm on windows atm, so it's not tested)

[depeo]

Thanks, it sets english correctly now, but that commit forces english if the language isn't detected?
Is it possible to add an optional parameter to /convert, so I can specify other languages manually, like swe?

Also there were another error:
Mono: process_create: Exec prog [/usr/bin/tesseract] args ["/tmp/6235c55d-0871-47aa-86ab-3fcf0634aff8.png" "/tmp/353002fe-9a6c-45bb-97c0-79e0461b28cb" -l eng -psm 6 hocr]
Error, unknown command line argument '-psm'
the psm parameter should have two dashes, --psm.

[niksedk]

Beta updated: https://github.com/SubtitleEdit/subtitleedit/releases/download/3.5.18/SubtitleEditBeta.zip

Should now use Tesseract 4 style parameters on Linux.
About the language, try /ocrdb:<ocr db/dictionary>, so that would like /ocrdb:eng or /ocrdb:swe.

[depeo]

Hi,

It works now, thanks, and /ocrdb:swe works as well.

$ /usr/bin/tesseract phototest-rotated-R.png output -l eng --psm 6 --oem 0 hocr
Error: Tesseract (legacy) engine requested, but components are not present in /usr/share/tesseract-ocr/4.00/tessdata/eng.traineddata!!
Failed loading language 'eng'
Tesseract couldn't load any languages!
Could not initialize tesseract.

I got that error when using the included dictionaries with Ubuntu, so I had to fetch legacy compatible eng.traineddata from the Tesseract github repo.( if anyone else see's this error)

[niksedk]

OK, default engine mode is now "3" (Default, based on what is available)
https://github.com/SubtitleEdit/subtitleedit/releases/download/3.5.18/SubtitleEditBeta.zip