This package speaks the LG speaker wire protocol which is used by both LG Music Flow Player and LG Wi-Fi Speaker, perhaps others as well. The name comes from Go, LG (Life's Good) and well, speakers.
Both encrypted and unencrypted communication are supported, but encryption IV and key may need to be adjusted depending on what type of speaker we're communicating with.
See github.com/mafredri/musicflow for an actual implementation using this protocol.
go get -u github.com/mafredri/goodspeakerFor decoding captured packets, see cmd/pcap-decode.