Video Subtitle Extractor and Converter (subtitle-track-extractor)
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Details for Video Subtitle Extractor and Converter
Package name
- subtitle-track-extractor
License
- MIT
Last updated
- Today - latest/stable
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Extract video subtitle tracks, inspect VobSub idx & convert SRT/VTT/ASS
Video Subtitle Extractor and Converter is a desktop utility for inspecting and demuxing embedded subtitle streams from video containers, analyzing DVD VobSub index files, and converting subtitle tracks across standard text formats. A lightweight Linux alternative to VobSub for subtitle track extraction, timing synchronization, and multi-format caption conversion.
Key Features:
- Embedded Subtitle Track Demuxer: Probes MKV, MP4, WebM, MOV, TS, and AVI media containers via bundled FFmpeg to inspect language tags, codecs, default/forced dispositions, and demuxes subtitle streams without re-encoding video.
- Multi-Format Subtitle Converter: Converts cleanly between SubRip (.srt), WebVTT (.vtt), SubStation Alpha (.ass/.ssa), synchronized lyrics (.lrc), and plain text transcripts (.txt) with live cue-by-cue preview and CPS metrics.
- Timing Offset, FPS Rescaler & Text Cleaner: Shifts subtitle cues by +/- ms, rescales timestamps across frame rates (23.976, 24, 25, 29.97, 30, 50, 59.94 fps), and removes HTML tags, ASS override codes, and hearing-impaired SDH brackets.
- DVD VobSub (.idx / .sub) Inspector: Parses VobSub v7 index headers, renders the 16-color DVD subtitle palette, inspects language stream timestamps and MPEG-PS packet offsets, shifts VobSub timings, and exports JSON/CSV cue reports.
Disclaimer: This project is an independent open-source tool and is not affiliated with, sponsored by, or endorsed by Gabest or the VobSub project.
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