How to download and setup ffmpeg-go
Open terminal and run command
                                            git clone https://github.com/u2takey/ffmpeg-go.git
                                        
                                        git clone is used to create a copy or clone of ffmpeg-go repositories.
                                        You pass git clone a repository URL. it supports a few different network protocols and corresponding URL formats.
Also you may download zip file with ffmpeg-go https://github.com/u2takey/ffmpeg-go/archive/master.zip
Or simply clone ffmpeg-go with SSH
                                            [email protected]:u2takey/ffmpeg-go.git