video-subtitle-cutter

What I Do

Automate video editing by:

1. Transcribing video to timestamped subtitles (Whisper)
2. Analyzing transcript with AI to identify cuts (filler words, pauses, mistakes)
3. Generating FFmpeg commands to cut and concatenate clean segments
4. Generating subtitles (SRT) for the final video

CRITICAL: Always Re-encode (Never Use -c copy)

The #1 mistake is using -c copy for cutting. This causes:

• Frozen frames at cut points (1-8 seconds of freeze)
• Audio/video sync issues
• Glitchy playback

Why? H.264 video uses keyframes (I-frames) every 2-10 seconds. -c copy can only cut at keyframes, so FFmpeg includes extra frames that display as frozen.