Run multiple inputs at once

[vitiko98]

There are situations where I need to synchronize multiple subtitle files from a single reference. This process ends up being I/O intensive as ffmpeg reads the entire reference file on every ffsubsync call for every subtitle file I want to synchronize. In order to save time, it would be great to allow ffsubsync to synchronize multiple files at once.

[smacke]

Hi there! This is actually supported currently, but it's not ideal from an interface perspective. You can run

ffs reference.mkv -i 1.srt 2.srt 3.srt --overwrite-input

and it will sync all 3 srt's to the reference, overwriting them in the process. It would be nice if there were a way to do this without overwriting though, e.g. if we had a way to specify a common suffix like -synced or something. I'll leave this issue open until I get around to implementing that; in the mean time, the workaround is to copy your inputs manually and then specify --overwrite-input

[cyzs233]

ffs reference.mkv -i 1.srt 2.srt 3.srt --overwrite-input

Wow, this is exactly what I'm looking for, I have dozens of foreign subtitles of all kinds of language that I want to sync with a film.
Does ffsubsync accept a .txt file as input, which contains path to all to-be-synced srt line by line.

Using a .txt file would be more organized and easier to adjust than CLI, and can be less intimidating when share this project to non-programers

[smacke]

@cyzs233 not sure how it would look on Windows, but you can do a command substitution to put all the stuff in the text file on the command line, something like this:

ffs reference.mkv -i $(cat all_to_be_synced.txt) --overwrite-input

Definitely don't take my word for it but a few searches suggest the equivalent windows command would be something like

ffs reference.mkv -i (type all_to_be_synced.txt) --overwrite-input

References:
https://superuser.com/questions/289344/is-there-something-like-command-substitution-in-windows-cli
https://superuser.com/questions/434870/what-is-the-windows-equivalent-of-the-unix-command-cat

[cyzs233]

It works!!! Thank you so much, you're a lifesaver.❤

ffs reference.mkv -i (type all_to_by_synced.txt) --overwrite-input

[milahu]

@cyzs233 usually this is done by globbing, for example, on linux

ffs reference.mkv -i /home/user/Downloads/subs/* --overwrite-input

this will process all files in the folder /home/user/Downloads/subs/ (non-recursive)

this should be similar on windows, maybe

ffs reference.mkv -i C:/Users/user/Downloads/subs/* --overwrite-input

[jakanaka]

just wanted to know if i can run this in a folder with multiple video and sub files