Hardcoded Subtitles to SRT

Creates an SRT file from a video file that has hardcoded subtitles. For example,

will generate

57
00:03:20,200 --> 00:03:22,120
就是那涌泉村的几户

The script relies on Tesseract for the optical character recognition.

Dependencies

• Python 3.9
• Tesseract OCR with support for your target language
• pipenv

To download the remaining python package dependencies, run

pipenv install

How to use

To extract hardcoded subtitles from a video file run:

pipenv run python hard_subs_to_srt.py "path/to/video_file.mkv" "path/to/subtitles.srt"

This opens a GUI where you can see the script working on the video. Commands that are available when running the video are:

• P - pause the subtitle extraction
• C - countinue the subtitle extraction if paused
• Q - stop the extraction and quit

For more information, have a look at the help documentation of the script by running:

pipenv run python hard_subs_to_srt.py -h

Note that the script is currently locked for specific format of video input. To get it working for your video you need to edit the script. So far I have only tried the script on 4k Chinese video. For lower resolution, the subtitle images may have to be scaled up before feeding them to Tesseract.