This editor allows you to make edits to files with subtitles - shift the timestamps, do a linear correction, or translate them to another language.
Supported File Formats
Use command Subtitles: Shift and enter offset time to shift subtitles. The format is "HH:mm:ss,zzz". You can use negative time if subtitles are too late.
With Subtitles: Renumber, you can renumber the frames using the sequence with specified start index. After selecting this option, enter the start of the sequence (usually
The command Subtitles: Linear Correction prompts you for two timestamp mappings. The input is in form "original timestamp -> new timestamp". Pick one point from the beginning of the movie and second one from the end of the movie to get the best approximation.
Use command Subtitles: Translate to translate subtitles to another language using Google translation service.
With Subtitles: Reorder, you can reorder the frames based on their sequence number. This can be useful if you want to work with translated and original subtitles at the same time. You can first translate the subtitles (which will replace the original ones) and append the original subtitles at the end. Then, you can reorder them so you will have translated and original frames near each other.
The goal of this extension is to allow easily modify subtitles files.
Tenet of this software is to do minimal modifications to the file when fulfilling any command, ignoring any errors that might be in the subtitles file. For instance, when asked to renumber frames, it should not modify the time format even if it is invalid. When altering timestamps, keep the time formatting.
All commands are to be applied to selection only. If no selection exists, they should be applied to whole file.
Existing Subtitle Formats
There is bunch of existing file formats. This extension currently supports SRT, VTT, and SBV files.
SubRip Text (SRT)
SubViewer (SBV, SUB)
Updating Supported Languages
The languages that can be used for translation are published by Google in Google documentation. The extension uses languages defined in
To convert the published table to JSON: