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Talking-Head Video → Animated Line-Art B-Roll
Keep audio, subtitles, duration; PiP speaker bottom-right; main frame replaced with concept-matched line-art B-roll (~30 shots).
Visual Proof & Effect Showcase
60 FPS
Audio transcript + Canvas
Render Dynamics & Highlights
Automated pipeline extracting transcript concepts from raw talking-head video and inserting synchronised 2D B-roll.
Engine / RuntimeAudio transcript + Canvas
Target FPS60 FPS
Resolution1920×1080
InteractionAuto split & insert
Parameters
Duration:match source (~83s)
Aspect Ratio:9:16
Tools / Engine:Python, FFmpeg, Claude Code
Prompt Text
Claude Code：safe mode，high effort，不加载外部 skill，不引入第三方素材。 输入：我提供的竖屏口播 MP4（唯一影像起点）。 要求： - 原声、原字幕、总时长 100% 不变。 - 说话人缩到右下角圆形画中画，不得遮挡字幕。 - 主画面替换为 light humorous line-art B-roll，讲到什么概念画什么（Python 逐帧或矢量时间轴均可）。 - 按字幕切 ~30 镜头；每个切点检查对齐。 - 输出新文件名 MP4 + 改造计划表（时间段 → 原画面 → 新 B-roll 描述）。 公开说明：源片表演/声音仍来自原视频，不是从零生成。
Implementation Guide
- Claude Code safe mode, high effort; source vertical MP4 only.
- PiP circular speaker; line-art B-roll per concept; ~30 subtitle-aligned shots.
- Verify subtitle boundaries, audio, exact duration; new filename export.
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