0.4.26

What's Changed

• Allow progress to work for multiple syncs even if alignment fails for a particular input;
• Allow specifying ffmpeg exe path using --ffmpeg-path;
• Updates for Python 3.12;
• fix: don't report sync as successful if best score is in negatives by @ajitid in #186
• Turn on Audio Sync for audio extraction process by @dvh312 in #192

New Contributors

• @ajitid made their first contribution in #186
• @dvh312 made their first contribution in #192

Full Changelog: 0.4.25...0.4.26

0.4.22

This release includes miscellaneous sync improvements, compatibility fixes, and other bugfixes. It also includes functionality for using a new algorithm, called "golden section search", for inferring the framerate ratio between the reference and input subtitles. To use, pass the --gss flag -- it may help in some cases where subtitles are still out of sync, if the issue is that the scaling is different from the predefined ratios ffsubsync tries.

0.4.11

• Misc sync improvements:
  • Have webrtcvad use '0' as the non speech label instead of 0.5;
  • Allow the vad non speech label to be specified via the --non-speech-label command line parameter;
  • Don't try to infer framerate ratio based on length between first and last speech frames for non-subtitle speech detection;

0.4.10

• Lots of improvements from PRs submitted by @alucryd (big thanks!):
  • Retain ASS styles;
  • Support syncing several subs against the same ref via --overwrite-input flag;
  • Add --apply-offset-seconds postprocess option to shift alignment by prespecified amount;
• Filter out metadata in subtitles when extracting speech;
• Add experimental --golden-section-search over framerate ratio (off by default);
• Try to improve sync by inferring framerate ratio based on relative duration of synced vs unsynced;

0.4.9

• Make default offset seconds 60 and enforce during alignment as opposed to throwing away alignments with > max_offset_seconds;
• Add experimental section for using golden section search to find framerate ratio;
• Restore ability to read stdin and write stdout after buggy permissions check;
• Exceptions that occur during syncing were mistakenly suppressed; this is now fixed;

0.4.8

• Allow MicroDVD input format;
• Use output extension to determine output format;
• Bugfix for writing subs to stdout;
• Misc bugfixes and stability improvements;
• Use webrtcvad-wheels on Windows to eliminate dependency on compiler (i.e., better Windows support);

0.4.4

Better Windows support, additional options for consuming tools, rich text console logging.

v0.3.4

• Attempt speech extraction from subtitle tracks embedded in video first before using VAD;

v0.3.2

• Add ability to merge synced and reference subs into bilingual subs when reference is srt;

v0.3.1

• Fix bug when handling ass/ssa input, this format should work now;