#mac #magick #mogrify #imagemagick #webp #gif #mp4

macOS 批量将 webp 转换为 gif, gif 转 mp4

1. 安装 homebrew

2. 安装 brew install imagemagick

3. brew info imagemagick 查看 路径

例如 

==> imagemagick: stable 7.1.1-29 (bottled), HEAD
Tools and libraries to manipulate images in many formats
https://imagemagick.org/index.php
/usr/local/Cellar/imagemagick/7.1.1-29_1 (809 files, 29MB) *

得到路径 /usr/local/Cellar/imagemagick/7.1.1-29_1

4. cd /tmp/webp 此为你存放 webp 文件的目录

5. 使用路径 webp 转 gif /usr/local/Cellar/bin/imagemagick/7.1.1-29_1/mogrify -format gif *.webp

6. 安装 brew install ffmpeg

7. gif 转 mp4 for file in *.gif; do ffmpeg -i "$file" -movflags faststart -pix_fmt yuv420p -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" "${file%.gif}.mp4"; done