When a pause point falls between two sentences, the previous algorithm
created a visual jump-back where the video rewound to resume_from after
the AD played. This was distracting to viewers.
New behavior:
- Video plays normally to pause_point
- Freeze frame shows + AD audio plays
- Freeze frame CONTINUES while source audio from [resume_from, pause_point]
plays (the "catch-up" audio)
- Video resumes smoothly from pause_point (no visual jump)
The audio from the overlap region plays twice (once during video, once
during freeze extension) but this is acceptable as it's typically <1s
and provides natural audio context around the AD.
Implementation:
- Add _extract_audio_segment() to extract catch-up audio from source
- Add _concatenate_audio() to join AD + catch-up audio
- Modify render loop to create extended freeze segments with combined audio
- Resume video from pause_point instead of resume_from
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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