Bobcaygeon

Multi room speaker application.

Overview

Bobcaygeon is a multi-room speaker application. Built on top of Apple airplay, Bobcaygeon is an application (more specifically a set of applications) that will run on a raspberry pi (or similar hardware) capable of playing streamed music on one or many hardware deployments.

Current Status

Full functional airplay server; Basic multi-room functionality. Will stream to multiple clients.
Standalone frontend to provide a basic UI into the running cluster of speakers. High level API to control speakers and build zones.

Currently tested on OSX, raspberry pi and linux x86.

Build

1. go build cmd/bcg.go
2. go build cmd/mgmt/bcg-mgmt.go

Frontend build

Install rakyll/statik

export GOBIN=$PWD/bin
export PATH=$GOBIN:$PATH
go install github.com/rakyll/statik

1. cd cmd/frontend/webui
2. npm install && npm run build
3. cd ..
4. go generate
5. cd ../..
6. go build cmd/frontend/bcg-frontend.go

To regenerate the the grpc service: protoc -I api/ --go_out=plugins=grpc:api api/bobcaygeon.proto protoc -I cmd/mgmt/api --go_out=plugins=grpc:cmd/mgmt/api cmd/mgmt/api/management.proto protoc -I=cmd/mgmt/api cmd/mgmt/api/management.proto --js_out=import_style=commonjs:cmd/frontend/webui protoc -I=cmd/mgmt/api cmd/mgmt/api/management.proto --grpc-web_out=import_style=commonjs,mode=grpcwebtext:cmd/frontend/webui

Or use build_protos.sh

Run

-config string
        Config file to run the service, see `bcg.toml` and `bcg-mgmt.toml`
  -verbose
        Verbose logging; logs requests and response

Usage

There are a couple of ways you can run the bobcaygeon system.

1. Install one or more instances of the bcg application on your pi's/computers. By default, the first instance of a bcg application in the cluster will act as the leader, and every subsequent instance will join in. This is the simplest way to get multi-room streaming, put a pi in each room, load up bcg on each one, and then you can connect over airplay.
2. The slighly more advanced method of deploying atleast one bcg-mgmt and bcg-frontend instance. This will give you both a management API and a simple frontend web UI. If you want to use the web ui provided by bcg-frontend you'll also need to start an instance of the Envoy proxy. You can use the launch_envoy.sh script for that.

API

There are two layers of API to interact with, if you would like. Both are built on grpc.

1. Each instance of bcg has a basic GRPC API: https://github.com/nstehr/bobcaygeon/blob/master/api/bobcaygeon.proto
2. bcg-mgmt has a richer management GRPC API: https://github.com/nstehr/bobcaygeon/blob/master/cmd/mgmt/api/management.proto

Raspberry Pi Notes

You can grab the bcg-arm build and drop it on your raspberry pi. You'll need to make sure you have ALSA setup, with the development headers (libasound2-dev)

You need to enable ipv6 on your raspberry pi. To do this, add ipv6 to your /etc/modules and reboot the pi.

Dev Builds

Dev builds can be found in the google storage bucket here: bcg_artifacts. This will be the most up to date builds, and they should be relatively stable