Media Interpolate

Context: $ARGUMENTS

Quick start

• 24fps → 60fps: RIFE rife-ncnn-vulkan → Step 2 recipe A.
• 2x slow-motion (keep audio pitch unchanged): Step 3.
• Tween between two stills (generate N frames between A and B): Step 4.
• Anime frame-doubling: RIFE with -m rife-v4.6 → Step 2 recipe A.

When to use

• User says "interpolate", "smooth framerate", "AI slow-motion", "24 to 60", "frame double", "insert frames".
• Source fps is lower than target display fps and you want motion-compensated tweens (not duplicated frames).
• ffmpeg's minterpolate=fps=60:mi_mode=mci looks wobbly, jelly, or artifact-heavy.
• Do NOT use for changing playback speed while keeping framerate constant — that's ffmpeg-speed-time (setpts + atempo).
• Do NOT use for upscaling resolution — that's media-upscale.