diff --git a/02. PARA/03. Resources（資源）/FFMPEG/01. Setup.md b/02. PARA/03. Resources（資源）/FFMPEG/01. Setup.md
index 2fb0814..c45f319 100644
--- a/02. PARA/03. Resources（資源）/FFMPEG/01. Setup.md	
+++ b/02. PARA/03. Resources（資源）/FFMPEG/01. Setup.md	
@@ -1,6 +1,23 @@
-FFmpeg doesn't support any official builds for any operation systems. You can build the codes from source, or 
+FFmpeg doesn't support any official builds for any operation systems. You can build the codes from source, or use the prebuilt packages.
 
-## Build from source
-From snapshot: https://ffmpeg.org/releases/ffmpeg-snapshot.tar.bz2
-or 
-From git: `git clone https://git.ffmpeg.org/ffmpeg.git ffmpeg`
\ No newline at end of file
+## From source
+Get source code from [snapshot](https://ffmpeg.org/releases/ffmpeg-snapshot.tar.bz2) or git(`git clone https://git.ffmpeg.org/ffmpeg.git ffmpeg`).
+
+## From prebuilt packages
+### MacOS
+Use homebrew to install FFMPEG package
+```
+brew install ffmpeg
+```
+
+### Ubuntu
+```
+sudo apt update ;\
+sudo apt install ffmpeg
+```
+
+### Windows
+Goto https://www.ffmpeg.org/download.html, and
+![[Pasted image 20220607105807.png]]
+
+And then browser jumps to https://www.gyan.dev/ffmpeg/builds/
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