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Image Subtitle Converter

note

This task is used by the Image Subtitle Converter flow element in the FFmpeg Builder.

The Image Subtitle Converter task converts bitmap-based subtitle tracks (such as PGS/SUP files commonly found on Blu-ray releases) into text-based SubRip (SRT) subtitles.

This enables subtitle support on players and devices that cannot render image-based subtitles.

Why You Would Use It​

  • Convert PGS/SUP subtitles from Blu-ray sources into widely compatible SRT subtitles.
  • Make subtitle tracks available on devices or players that do not support image-based subtitles.
  • Automate subtitle conversion as part of a larger media processing flow.

Settings​

SettingDescription
LLM Model OverrideOptional model override for the LLM provider. A recommended model for subtitle OCR is qwen2.5vl:3b. Leave empty to use the system default model.