Andrew Collington amnuts

About

This gist will show how to setup Raspbian Stretch as a headless Bluetooth A2DP audio sink. This will allow your phone, laptop or other Bluetooth device to play audio wirelessly through a Rasperry Pi.

Motivation

A quick search will turn up a plethora of tutorials on setting up A2DP on the Raspberry Pi. However, I felt this gist was necessary because this solution is:

Automatic & Headless - Once setup, the system is entirely automatic. No user iteration is required to pair, connect or start playback. Therefore the Raspberry Pi can be run headless.
Simple - This solution has few dependencies, readily available packages and minimal configuration.
Up to date - As of December 2017. Written for Raspbian Stretch & Bluez 5.43

Prerequisites

ffmpeg

Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

You can get the list of installed codecs with:

	MIT License

	Copyright (c) 2018 Noel Bundick

	Permission is hereby granted, free of charge, to any person obtaining a copy
	of this software and associated documentation files (the "Software"), to deal
	in the Software without restriction, including without limitation the rights
	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	copies of the Software, and to permit persons to whom the Software is
	furnished to do so, subject to the following conditions:

	# .git/hooks/post-merge

	changed_files="$(git diff-tree -r --name-only --no-commit-id ORIG_HEAD HEAD)"

	composer_install_on_changed_lockfile() {
	echo "$changed_files" \| grep --quiet "composer.lock" &&
	echo "Changes to 'composer.lock' detected; running 'composer install'." &&
	composer install
	}

	cmake_minimum_required(VERSION 3.7)
	project(esp_vt100_firmware)

	set(CMAKE_CXX_STANDARD GNU99)

	set(SOURCE_FILES
	include/uart_hw.h
	include/user_config.h
	user/io.c
	user/io.h

	const { applyMiddleware, createStore } = Redux;
	const createSagaMiddleware = ReduxSaga.default;
	const { put, call } = ReduxSaga.effects;
	const { takeLatest } = ReduxSaga;
	const { connect, Provider } = ReactRedux;

	// GitHub API
	const gitHubApi = (username) => {
	return fetch(`https://api.github.com/users/${username}`)
	.then(response => {

	@mixin font-smoothing($value: on) {
	@if $value == on {
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	}
	@else {
	-webkit-font-smoothing: subpixel-antialiased;
	-moz-osx-font-smoothing: auto;
	}
	}

	(function() {

	"use strict";

	var toggles = document.querySelectorAll(".cmn-toggle-switch");

	for (var i = toggles.length - 1; i >= 0; i--) {
	var toggle = toggles[i];
	toggleHandler(toggle);
	};

	#!/usr/bin/env bash

	# names of latest versions of each package
	export VERSION_PCRE=pcre-8.38
	export VERSION_OPENSSL=openssl-1.0.2d
	export VERSION_NGINX=nginx-1.9.7

	# URLs to the source directories
	export SOURCE_OPENSSL=https://www.openssl.org/source/
	export SOURCE_PCRE=ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/

	/**
	* plugin.js
	*
	* Copyright, Moxiecode Systems AB
	* Released under LGPL License.
	*
	* License: http://www.tinymce.com/license
	* Contributing: http://www.tinymce.com/contributing
	*/