ericwyuan 727642d38b feat: adaptive keyframe count based on video duration ...

- Replace fixed 5-8 keyframe limit with duration-based adaptive sizing
- Candidate frames: clamp(duration_min × 2, 30, 120)
- Keyframe cap: clamp(duration / 150s, 8, 30)
- 30min video → 12 keyframes (was 8), 60min → 24, 120min → 30
- Short videos (<12min) still get floor of 8 keyframes
- Add Ollama keep-alive config doc to PROGRESS.md (OLLAMA_KEEP_ALIVE=-1)
- Update config.yaml and config.yaml.example with new video params

2026-08-20 01:29:14 +08:00

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