This is the complete suite of tools for processing TBC (Time Base Corrected) files from the decode projects

• vhs-decode & cvbs-decode
• Tape Decode Rust
• Decode Dot Net

This is an cross-platform feature addition focused continuation based off the original now legacy ld-tools, directly after the cut-off for decode-orc development.

These tools are for analyzing decoded analog video sources, handling the 4fsc video data, sound, metadata and final tweaks in framing, chroma-decoding and video levels before converting to YUV digital video files.

Please see the releases page for ready to use self-contained binary's for production usage on Windows, macOS, Linux for x86 and ARM64 platforms.

• tbc-analyse - GUI tool for TBC file visual analysis & adjustment handler. Supports drag-and-drop loading of .tbc, .ytbc, .ctbc, .tbcy, .tbcc, .db, and .json files into the main window.

• tbc-process-vbi - Decode Vertical Blanking Interval data. Closed Captions, VITC - Vertical Interval Time Code, XDS Data and VITS metrics Teletext and more!

• tbc-dropout-correct - Advanced dropout detection and correction

• tbc-chroma-decoder - Color decoder for 4fsc TBC CVBS/S-Video data to YUV conversion (BBC PAL Transform 2D & Transform 3D, MESECAM, SECAM, NTSC 3D, nnTransfrom 3D colour decoding)

Replaces deprecated ld-process-efm with staged decoding and stacking capabilities

• ac3-decoder - Decode AC3 data from demodulated AC3-RF QPSK symbols

• efm-handler - GUI handling tool for stages automatic use.

• efm-decoder-f2 - Convert EFM T-values to F2 sections

• efm-decoder-d24 - Convert F2 sections to Data24 format

• efm-decoder-audio - Convert EFM Data24 sections to 16-bit stereo PCM audio

• efm-decoder-data - Convert EFM Data24 sections to ECMA-130 binary data

• efm-stacker-f2 - Combine multiple F2 captures for improved quality

• ld-discmap - TBC and VBI alignment and correction tool

• ld-disc-stacker - Combine multiple TBC captures for improved quality

• tbc-video-export - Direct to video export task handler for .tbc files via CLI with a visual readout.

• tbc-segments - Find recording boundaries (tape gaps, sync loss, scene changes) in TBC metadata and fields

• tbc-export-metadata - Export TBC metadata to external formats I.G FFmpeg.

• tbc-metadata-converter - Convert between JSON & SQLite metadata formats.

• lds-converter - Convert and bulk FLAC compress legacy 10-bit packed and 16-bit data formats for legacy DdD app captures.

MISRC GUI --> Decoder of Choise --> 4fsc TBC + Metadata + Audio --> TBC-Tools --> Video Files.

Analyse & Adjust: Use tbc-analyse to assess capture quality and identify issues such as off-set active picture area or chroma phase/gain & video levels corrections.

Decode VBI: If any usable VBI data is present, decode it and save that to metadata or automatically prepare it for export with standard files.

Align: Using Auto Audio Align, you can easily align your same clock source capture to your metadata and load in the audio for perfect cut.

Set in/out: Using the timeline set your exact in/out cut points and any chapter markers (exported into video) for points of interest.

Export: Convert to final formats using the export page to chroma-decode and encode via FFmpeg profile to a main and or proxy video files.

• Metadata Formats: SQLite (.tbc.db) is the 2026-present metadata format, JSON metadata (2017-2026) being still supported by the tools and used by many builds for the decode suite.

• File Extensions: TBC files use .tbc extension; metadata is commonly .tbc.json & .tbc.db (SQLite)

• Dependencies: Most tools require FFmpeg and other multimedia libraries.

• Performance: Many tools support multi-threading for fast real-time or faster processing.

Each tool directory contains detailed README.md files with:

• Basic usage instructions
• Complete option references
• Usage examples
• Input/output format specifications
• Troubleshooting References

See individual tool directories for specific tool documentation and the wiki for more info.