Feature Request: Customizable Suffix for Synced Subtitle Filenames #25

Feature Request: Customizable Suffix for Synced Subtitle Filenames

Current Behavior

When subtitles are generated by SubSyncArr, the output files are named as follows:

• From: movie-name.en.srt
  To:

  • movie.en.autosubsync.srt
  • movie.en.ffsubsync.srt

• From: movie-name.en.hi.srt
  To:

  • movie.en.hi.autosubsync.srt
  • movie.en.hi.ffsubsync.srt

Effectively, subtitles are renamed from *.srt to *.autosubsync.srt and *.ffsubsync.srt.

Problem

Tools like Bazarr do not recognize these generated filenames, which leads to the following issues:

• Bazarr cannot apply additional adjustments (e.g., shifting subtitles by a few seconds, I had couple of cases where the synced subs were ok but with constant two seconds delay).
• Bazarr's syncing features for foreign subtitles (based on a synced English subtitle) can't be used.
• The generated subtitles are not displayed or processed properly unless manually renamed.

Bazarr only supports the following subtitle suffixes:
movie.[lang].[hi|sdh|cc|forced].srt

Reference: custom_lang.py#L26

Proposed Feature

Add a configuration option (e.g., via environment variables) to customize the suffix used in the generated subtitle filenames. For example:

SUBSYNCARR_AUTOSUBSYNC_SUFFIX=cc SUBSYNCARR_FFSUBSYNC_SUFFIX=sdh

Would result in output files like:

• movie.en.cc.srt (instead of movie.en.autosubsync.srt)
• movie.en.sdh.srt (instead of movie.en.ffsubsync.srt)

Benefits

• Enables Bazarr to recognize and manage synced subtitle files.
• Allows further adjustments via Bazarr (e.g., shifting subtitles).
• Allows Bazarr to use synced English subtitles as a base to sync foreign language subtitles.

Additional Considerations

• Implementation should handle cases where the original filename already includes the mapped suffix to avoid duplicates like movie.en.cc.cc.srt.
• Feature should be optional and disabled by default to preserve existing behavior.

Current Workaround

At the moment, I manually rename the generated subtitle files to use supported suffixes so they’re recognized by Bazarr. Automating this would make the workflow much smoother.