# prepare ffmpeg
You can use ffmpeg either by **installing** or just by **downloading**.
## install ffmpeg
### mac
Type these cmd in your terminal.
1. install homebrew
```shell
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
```
2. install ffmpeg
```shell
brew install ffmpeg
```
### windows
TODO: windows is not supported for `gradle-screen-record` now.
## download ffmpeg
https://ffmpeg.org/
Or:
https://raw.githubusercontent.com/fashare2015/gradle-screen-record/master/ffmpeg
### Set ffmpeg path
If you just **download** the ffmpeg instead of **installing** it, **you must set the path of it**.
Add the path of ffmpeg this way:
Config in **rootProject/gradle.properties**:
>FFMPEG_PATH=XXX
**For example:**
FFMPEG_PATH="./ffmpeg"