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huashu-design/scripts/convert-formats.sh
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alchainandClaude Opus 4.7 7d7bab4a82 init: huashu-design skill v1.0
花叔设计工作台 —— AI 驱动的 HTML 设计工作流,支持 Claude Code / Codex /
Cursor / Trae / OpenClaw / Hermes Agent 等任意 skill-compatible agent。

四条主干能力:
- HTML 高保真视觉产出(原型/App/幻灯片/动画/变体/信息图)
- 设计方向顾问 Fallback(5 流派 × 20 设计哲学 × 24 预制 showcase)
- Junior Designer 工作流(先 show 假设再迭代)
- 专家级 5 维度评审(哲学/层级/执行/功能/创新)

工程工具链:
- HTML → 25fps/60fps MP4 + palette GIF,含 6 首场景化 BGM
- HTML → PDF / PPTX 导出
- Playwright 截图 + 控制台错误验证
- iOS/Android/macOS/Browser 设备边框 + Stage/Sprite 动画引擎

初版包含 SKILL.md + 13 份 references + 7 个 scripts + 18 类 assets。

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-19 22:41:51 +08:00

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#!/bin/bash
# Convert MP4 animations to 60fps MP4 (via minterpolate) and optimized GIF.
#
# Usage:
# ./convert-formats.sh input.mp4 [gif_width]
#
# Produces next to the input:
# <name>-60fps.mp4 (1920x1080, 60fps, motion-interpolated)
# <name>.gif (scaled width, 15fps, palette-optimized)
#
# minterpolate flags:
# mi_mode=mci motion compensation interpolation
# mc_mode=aobmc adaptive overlapped block motion comp
# me_mode=bidir bidirectional motion estimation
# vsbmc=1 variable-size block motion comp
# GIF uses two-pass palette:
# pass 1: palettegen with stats_mode=diff (per-video optimal palette)
# pass 2: paletteuse with bayer dither + rectangle diff
# This keeps 30s/1080p animations GIF under ~4MB with good color fidelity.
set -e
INPUT="${1:?Usage: $0 input.mp4 [gif_width]}"
GIF_WIDTH="${2:-960}"
DIR=$(dirname "$INPUT")
BASE=$(basename "$INPUT" .mp4)
OUT60="$DIR/$BASE-60fps.mp4"
OUTGIF="$DIR/$BASE.gif"
PAL="$DIR/.palette-$BASE.png"
echo "▸ 60fps interpolate: $OUT60"
ffmpeg -y -loglevel error -i "$INPUT" \
-vf "minterpolate=fps=60:mi_mode=mci:mc_mode=aobmc:me_mode=bidir:vsbmc=1" \
-c:v libx264 -pix_fmt yuv420p -crf 18 -preset medium -movflags +faststart \
"$OUT60"
MP4_SIZE=$(du -h "$OUT60" | cut -f1)
echo " ✓ $MP4_SIZE"
echo "▸ GIF (${GIF_WIDTH}w, 15fps, palette-optimized): $OUTGIF"
# Pass 1: generate palette tailored to this video
ffmpeg -y -loglevel error -i "$INPUT" \
-vf "fps=15,scale=${GIF_WIDTH}:-1:flags=lanczos,palettegen=stats_mode=diff" \
"$PAL"
# Pass 2: apply palette with dithering
ffmpeg -y -loglevel error -i "$INPUT" -i "$PAL" \
-lavfi "fps=15,scale=${GIF_WIDTH}:-1:flags=lanczos[x];[x][1:v]paletteuse=dither=bayer:bayer_scale=5:diff_mode=rectangle" \
"$OUTGIF"
rm -f "$PAL"
GIF_SIZE=$(du -h "$OUTGIF" | cut -f1)
echo " ✓ $GIF_SIZE"