BDSup2Sub

BDSup2Sub is a tool I wrote initially to convert captions demuxed from a Blu-Ray transport stream (M2TS) into the DVD VobSub format (SUB/IDX) used by many DVD authoring tools - hence the name. Many more features were added over time as was support for other formats. So in the meantime the name seems a little inappropriate. In a nutshell, it's a subtitle conversion tool (for image based formats) with scaling capabilities and some other nice features.

Supported Formats

- Blu-Ray SUP: Import (since 1.0) and Export (since 1.6)
- Sony BDN XML: Import and Export (since 3.3.0)
- HD-DVD SUP: Import (since 1.9)
- VobSub (SUB/IDX): Import (since 3.5.0) and Export (since 1.0)
- DVD-SUP (SUP/IFO): import and export (since 3.9.0)

Features

- add a fixed delay to all timestamps (since 1.0)
- perform a frame rate conversion e.g. for pal speedup (since 1.0)
- synchronize time stamps to output frame rate (since 2.0)
- edit times and position of each caption (since 2.3)
- control all features (except editing) from the command line (since 1.7)
- move all captions inside or outside a given area (since 2.7) or horizontally (since 3.9.6)
- scale up/down with a variety of filters (from bilinear over bicubic to Lanczos3 and Mitchell) (since 3.4.0)
- edit "forced" flags (since 3.6.0)
- exclude single captions from export (since 3.6.0)
- erase rectangular regions of a caption (since 3.6.0)
- scale captions independently of screen size (since 3.7.0)
- automatically remove fade in/out from imported subtitle streams
- export the target palette in PGCEdit text format (RGB values 0..255) (since 3.9.0)
- edit the imported DVD palette when input is either VobSub or SUP/IFO (since 3.9.1)
- edit the frame palette and alpha values when input is either VobSub or SUP/IFO (since 3.9.3)
- set/clear forced flags for all captions (since 3.9.9)