Caption Renderer - Burn Karaoke Captions into Video with FFmpeg
Renders karaoke-style rolling captions into video using FFmpeg ASS subtitles
Tags
Updated: 2026-02-13Capabilities
Typical Inputs
Typical Outputs
What this skill does
- Generate ASS subtitle file
- Apply karaoke highlighting
- Use FFmpeg subtitles filter
- Apply scale filter
- Render multiple clips
Inputs
- Video file path
- Caption data with timestamps
- Audio file path
Outputs
- Video with burned captions
- Concatenated video file
Requirements
- FFmpeg with libass support