What is it

I'm self-learning Japanese. I use mpd with mpc to play audio files which I extracted from Japanese movies. Often I need to check out subtitles when I can not clearly understand what I just heard. This tool srt plus the helper script sub, queries and print the corresponding subtitle at the time of current playing audio.

It assumes your subtitle files are under "$HOME/subtitles/", and have the same base name of the audio files. However, you can modify sub script easily as your needs.

Usage

1. Build srt with go build.

2. Copy/move srt and sub to somewhere under you $PATH.

3. Run sub to print the subtitle at current point:

   

Global offset

Sometimes subtitle file may not exactly match the video, that's why media player like mpv has the functionality to adjust subtitle delay.

With srt, there are two ways to specify a similar subtitle delay offset:

1. With command line flag: srt -offset 3500 <srt file> set a 3500 milliseconds delay offset.
2. Or you can add OFFSET:3500 as the first line of subtitle file. Offset specfied in the file always override the offset specified by command line flag.