airplay协议源码及详细协议资料

Shairplay ========= Free portable AirPlay server implementation similar to [ShairPort](https://github.com/abrasive/shairport). Currently only AirPort Express emulation is supported. Disclaimer ---------- All the resources in this repository are written using only freely available information from the internet. The code and related resources are meant for educational purposes only. It is the responsibility of the user to make sure all local laws are adhered to. Installation ------------ First you need to install some dependencies, for example on Ubuntu you would write: ``` sudo apt-get install autoconf automake libtool sudo apt-get install libltdl-dev libao-dev libavahi-compat-libdnssd-dev sudo apt-get install avahi-daemon ``` ``` ./autogen.sh ./configure make sudo make install ``` Notice that libao is required in order to install the shairplay binary, otherwise only the library is compiled and installed. Usage ----- Check available options with ```shairplay --help```: ``` Usage: shairplay [OPTION...] -a, --apname=AirPort Sets Airport name -p, --password=secret Sets password -o, --server_port=5000 Sets port for RAOP service --ao_driver=driver Sets the ao driver (optional) --ao_devicename=devicename Sets the ao device name (optional) --ao_deviceid=id Sets the ao device id (optional) -h, --help This help ``` Start the server with ```shairplay```, if you are connected to a Wi-Fi the server should show as an AirPort Express on your iOS devices and Mac OS X computers in the same network. Notice that you need to have the airport.key file in your working directory when starting the shairplay service. It is not included in the binary for possible legal reasons. Related software ---------------- * [ShairPort](https://github.com/abrasive/shairport), original AirPort Express emulator * [ALAC](http://craz.net/programs/itunes/alac.html), ALAC decoder by David Hammerton Description ----------- Short description about what each file in the main library does: ``` src/lib/base64.* - base64 encoder/decoder src/lib/dnssd.* - dnssd helper functions src/lib/http_parser.* - HTTP parser from joyent (nginx fork) src/lib/http_request.* - Request parser that uses http_parser src/lib/http_response.* - Extremely simple HTTP response serializer src/lib/httpd.* - Generic HTTP/RTSP server src/lib/logger.* - Logging related functions src/lib/netutils.* - Mostly socket related code src/lib/raop.* - Main RAOP handler, handles all RTSP stuff src/lib/raop_rtp.* - Handles the RAOP RTP related stuff (UDP/TCP) src/lib/raop_buffer.* - Parses and buffers RAOP packets, resend logic here src/lib/rsakey.* - Decrypts and parses the RSA key to bigints src/lib/rsapem.* - Converts the RSA PEM key to DER encoded bytes src/lib/sdp.* - Extremely simple RAOP specific SDP parser src/lib/utils.* - Utils for reading a file and handling strings ``` Short description about what each file in the Qt application does: ``` AirTV-Qt/main.cpp - Initializes the application AirTV-Qt/mainapplication.cpp - Creates the tray icon and starts RAOP AirTV-Qt/raopservice.cpp - Handles all communication with the library AirTV-Qt/raopcallbackhandler.cpp - Converts C callbacks to Qt callbacks AirTV-Qt/audiooutput.cpp - Takes care of the actual audio output ```