Raspberry Pi 樹莓派 架設ShairPort使用AirPlay播放音樂

由於筆者的Pi上有外接音效卡接喇叭，拿Pi來當AirPlay的裝置似乎不錯用
以下說明怎麼安裝ShairPort讓Pi變成AirPlay裝置

1. 安裝ShairPort相依套件

pi@ShiunPiSnd ~ $ sudo apt-get install libssl-dev libavahi-client-dev libasound2-dev libao-dev avahi-utils
註: 由於筆者用的abrasive/shairport沒有使用到perl，所以不用特地去安裝perl相關套件

2. 建置並安裝ShairPort

# 下載ShairPort原始碼 pi@ShiunPiSnd ~ $ git clone https://github.com/abrasive/shairport pi@ShiunPiSnd ~ $ cd shairport # 檢查設定相依套件是否都安裝正確 pi@ShiunPiSnd ~/shairport $ ./configure Configuring Shairport OpenSSL found libao found PulseAudio or its dev package not found ALSA found Avahi client found getopt.h found CFLAGS: -I/usr/include/alsa -D_REENTRANT LDFLAGS: -lm -lpthread -lssl -lcrypto -lao -lasound -lavahi-common -lavahi-client Configure successful. You may now build with 'make' #開始建置 pi@ShiunPiSnd ~/shairport $ make #安裝到/usr/local/bin pi@ShiunPiSnd ~/shairport $ sudo make install

3. 測試ShairPort

將Pi模擬成AirPlay裝置，並設定名稱為AirPi pi@ShiunPiSnd ~/shairport $ shairport -a "AirPi"

i. Mac使用ShairPort
  壓著鍵盤上的option鍵對喇叭圖示點一下，選擇音源輸出為AirPi
  隨便播放音樂試試看～

ii. iPhone場合
  從畫面下方向上滑叫出控制中心，點選AirPlay後選擇AirPi

4. 設定為開機啟動

# 複製設定檔到相對應的位置 pi@ShiunPiSnd ~/shairport $ sudo cp -r scripts/debian/* /etc/
# 設定使用者為pi pi@ShiunPiSnd ~/shairport $ sudo vi /etc/default/shairport # User and group under whihc shairport should be run # user should have permission to output sound # Check the audio output documentation for details. #USER=shairport USER=pi #GROUP=nogroup
# 修正使用sudo service shairport發生錯誤問題 pi@ShiunPiSnd ~/shairport $ sudo vi /etc/init.d/shairport # User and group under whihc shairport should be run PATH=/sbin:/usr/sbin:/bin:/usr/bin DESC="Shairport Airtunes emulator" NAME=shairport #DAEMON=/usr/bin/shairport DAEMON=/usr/local/bin/shairport # 預設shairport安裝路徑應在/usr/local/bin下
# 設定shairport為開機啟動 pi@ShiunPiSnd ~/shairport $ sudo update-rc.d shairport defaults
重新啟動Pi以後就可以抓到AirPlay裝置啦～
注意：由daemon啟動的ShairPort預設裝置名稱為Pi的host name

參考資料

1. GitHub: abrasive/shairport
2. 使用Shairport 讓你的Raspberry Pi 變成AirPlay 音樂播放器