[deb_shairplay.git] / src / bindings / python / Shairplay.py

# coding=utf-8
'''
Copyright (C) 2012  Juho Vähä-Herttua

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:

The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
'''

import os
import sys
import platform

from ctypes import *

audio_init_prototype =        CFUNCTYPE(py_object, c_void_p, c_int, c_int, c_int)
audio_set_volume_prototype =  CFUNCTYPE(None, c_void_p, c_void_p, c_float)
audio_process_prototype =     CFUNCTYPE(None, c_void_p, c_void_p, c_void_p, c_int)
audio_flush_prototype =       CFUNCTYPE(None, c_void_p, c_void_p)
audio_destroy_prototype =     CFUNCTYPE(None, c_void_p, c_void_p)

class RaopNativeCallbacks(Structure):
	_fields_ = [("cls",               py_object),
	            ("audio_init",        audio_init_prototype),
	            ("audio_set_volume",  audio_set_volume_prototype),
	            ("audio_process",     audio_process_prototype),
	            ("audio_flush",       audio_flush_prototype),
	            ("audio_destroy",     audio_destroy_prototype)]

def InitShairplay(libshairplay):
	# Initialize dnssd related functions
	libshairplay.dnssd_init.restype = c_void_p
	libshairplay.dnssd_init.argtypes = [POINTER(c_int)]
	libshairplay.dnssd_register_raop.restype = c_int
	libshairplay.dnssd_register_raop.argtypes = [c_void_p, c_char_p, c_ushort, POINTER(c_char), c_int, c_int]
	libshairplay.dnssd_register_airplay.restype = c_int
	libshairplay.dnssd_register_airplay.argtypes = [c_void_p, c_char_p, c_ushort, POINTER(c_char), c_int]
	libshairplay.dnssd_unregister_raop.restype = None
	libshairplay.dnssd_unregister_raop.argtypes = [c_void_p]
	libshairplay.dnssd_unregister_airplay.restype = None
	libshairplay.dnssd_unregister_airplay.argtypes = [c_void_p]
	libshairplay.dnssd_destroy.restype = None
	libshairplay.dnssd_destroy.argtypes = [c_void_p]

	# Initialize raop related functions
	libshairplay.raop_init.restype = c_void_p
	libshairplay.raop_init.argtypes = [POINTER(RaopNativeCallbacks), c_char_p]
	libshairplay.raop_start.restype = c_int
	libshairplay.raop_start.argtypes = [c_void_p, POINTER(c_ushort), POINTER(c_char), c_int, c_char_p]
	libshairplay.raop_stop.restype = None
	libshairplay.raop_stop.argtypes = [c_void_p]
	libshairplay.raop_destroy.restype = None
	libshairplay.raop_destroy.argtypes = [c_void_p]

def LoadShairplay(path):
	if sys.maxsize < 2**32:
		libname = "shairplay32"
	else:
		libname = "shairplay64"

	if platform.system() == "Windows":
		libname = libname + ".dll"
	elif platform.system() == "Darwin":
		libname = "lib" + libname + ".dylib"
	else:
		libname = "lib" + libname + ".so"

	try:
		fullpath = os.path.join(path, libname)
		libshairplay = cdll.LoadLibrary(fullpath)
	except:
		raise RuntimeError("Couldn't load shairplay library " + libname)

	InitShairplay(libshairplay)
	return libshairplay

RSA_KEY = """
-----BEGIN RSA PRIVATE KEY-----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=
-----END RSA PRIVATE KEY-----
"""

class RaopCallbacks:
	def audio_init(self, bits, channels, samplerate):
		raise NotImplementedError()

	def audio_set_volume(self, session, volume):
		pass

	def audio_process(self, session, buffer):
		raise NotImplementedError()

	def audio_flush(self, session):
		pass

	def audio_destroy(self, session):
		pass

class RaopService:
	def audio_init_cb(self, cls, bits, channels, samplerate):
		session = self.callbacks.audio_init(bits, channels, samplerate)
		self.sessions.append(session)
		return session

	def audio_set_volume_cb(self, cls, sessionptr, volume):
		session = cast(sessionptr, py_object).value
		self.callbacks.audio_set_volume(session, volume)

	def audio_process_cb(self, cls, sessionptr, buffer, buflen):
		session = cast(sessionptr, py_object).value
		strbuffer = string_at(buffer, buflen)
		self.callbacks.audio_process(session, strbuffer)

	def audio_flush_cb(self, cls, sessionptr):
		session = cast(sessionptr, py_object).value
		self.callbacks.audio_flush(session)

	def audio_destroy_cb(self, cls, sessionptr):
		session = cast(sessionptr, py_object).value
		self.callbacks.audio_destroy(session)
		if session in self.sessions:
			self.sessions.remove(session)


	def __init__(self, libshairplay, callbacks):
		self.libshairplay = libshairplay
		self.callbacks = callbacks
		self.sessions = []
		self.instance = None

		# We need to hold a reference to native_callbacks
		self.native_callbacks = RaopNativeCallbacks()
		self.native_callbacks.audio_init = audio_init_prototype(self.audio_init_cb)
		self.native_callbacks.audio_set_volume = audio_set_volume_prototype(self.audio_set_volume_cb)
		self.native_callbacks.audio_process = audio_process_prototype(self.audio_process_cb)
		self.native_callbacks.audio_flush = audio_flush_prototype(self.audio_flush_cb)
		self.native_callbacks.audio_destroy = audio_destroy_prototype(self.audio_destroy_cb)

		# Initialize the raop instance with our callbacks
		self.instance = self.libshairplay.raop_init(pointer(self.native_callbacks), RSA_KEY)
		if self.instance == None:
			raise RuntimeError("Initializing library failed")

	def __del__(self):
		if self.instance != None:
			self.libshairplay.raop_destroy(self.instance)
		self.instance = None

	def start(self, port, hwaddrstr, password=None):
		port = c_ushort(port)
		hwaddr = create_string_buffer(hwaddrstr, len(hwaddrstr))

		ret = self.libshairplay.raop_start(self.instance, pointer(port), hwaddr, c_int(len(hwaddr)), password)
		if ret < 0:
			raise RuntimeError("Starting RAOP instance failed")
		return port.value

	def stop(self):
		self.libshairplay.raop_stop(self.instance)

class DnssdService:
	def __init__(self, libshairplay):
		self.libshairplay = libshairplay
		self.instance = None

		error = c_int(0)

		self.instance = self.libshairplay.dnssd_init(pointer(error))
		if self.instance == None:
			raise RuntimeError("Initializing library failed: " + str(error.value))

	def __del__(self):
		if self.instance != None:
			self.libshairplay.dnssd_destroy(self.instance)
		self.instance = None

	def register_raop(self, name, port, hwaddrstr, password=False):
		hwaddr = create_string_buffer(hwaddrstr, len(hwaddrstr))
		use_pw = c_int(0)
		if password:
			use_pw = c_int(1)
		self.libshairplay.dnssd_register_raop(self.instance, name, c_ushort(port), hwaddr, len(hwaddr), use_pw)

	def unregister_raop(self):
		self.libshairplay.dnssd_unregister_raop(self.instance)

	def register_airplay(self, name, port, hwaddrstr):
		hwaddr = create_string_buffer(hwaddrstr, len(hwaddrstr))
		self.libshairplay.dnssd_register_airplay(self.instance, name, c_ushort(port), hwaddr, len(hwaddr))

	def unregister_airplay(self):
		self.libshairplay.dnssd_unregister_airplay(self.instance)
Commit	Line	Data
1f0de05c	1	# coding=utf-8
094e4ad1	2	'''
6b27160f	3	Copyright (C) 2012 Juho Vähä-Herttua
094e4ad1	4
6b27160f JVH	5	Permission is hereby granted, free of charge, to any person obtaining
	6	a copy of this software and associated documentation files (the
	7	"Software"), to deal in the Software without restriction, including
	8	without limitation the rights to use, copy, modify, merge, publish,
	9	distribute, sublicense, and/or sell copies of the Software, and to
	10	permit persons to whom the Software is furnished to do so, subject to
	11	the following conditions:
094e4ad1	12
6b27160f JVH	13	The above copyright notice and this permission notice shall be included
	14	in all copies or substantial portions of the Software.
	15
	16	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	17	EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	18	MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
	19	IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
	20	CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
	21	TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
	22	SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
094e4ad1 JVH	23	'''
094e4ad1 JVH	24
8be1424a JVH	25	import os
	26	import sys
	27	import platform
	28
	29	from ctypes import *
	30
	31	audio_init_prototype = CFUNCTYPE(py_object, c_void_p, c_int, c_int, c_int)
	32	audio_set_volume_prototype = CFUNCTYPE(None, c_void_p, c_void_p, c_float)
	33	audio_process_prototype = CFUNCTYPE(None, c_void_p, c_void_p, c_void_p, c_int)
	34	audio_flush_prototype = CFUNCTYPE(None, c_void_p, c_void_p)
	35	audio_destroy_prototype = CFUNCTYPE(None, c_void_p, c_void_p)
	36
	37	class RaopNativeCallbacks(Structure):
	38	_fields_ = [("cls", py_object),
	39	("audio_init", audio_init_prototype),
	40	("audio_set_volume", audio_set_volume_prototype),
	41	("audio_process", audio_process_prototype),
	42	("audio_flush", audio_flush_prototype),
	43	("audio_destroy", audio_destroy_prototype)]
	44
c1b1e2c3	45	def InitShairplay(libshairplay):
8be1424a JVH	46	# Initialize dnssd related functions
8be1424a JVH	47	libshairplay.dnssd_init.restype = c_void_p
094e4ad1	48	libshairplay.dnssd_init.argtypes = [POINTER(c_int)]
8be1424a	49	libshairplay.dnssd_register_raop.restype = c_int
a68fedbb	50	libshairplay.dnssd_register_raop.argtypes = [c_void_p, c_char_p, c_ushort, POINTER(c_char), c_int, c_int]
8be1424a	51	libshairplay.dnssd_register_airplay.restype = c_int
094e4ad1	52	libshairplay.dnssd_register_airplay.argtypes = [c_void_p, c_char_p, c_ushort, POINTER(c_char), c_int]
8be1424a JVH	53	libshairplay.dnssd_unregister_raop.restype = None
	54	libshairplay.dnssd_unregister_raop.argtypes = [c_void_p]
	55	libshairplay.dnssd_unregister_airplay.restype = None
	56	libshairplay.dnssd_unregister_airplay.argtypes = [c_void_p]
	57	libshairplay.dnssd_destroy.restype = None
	58	libshairplay.dnssd_destroy.argtypes = [c_void_p]
	59
	60	# Initialize raop related functions
	61	libshairplay.raop_init.restype = c_void_p
	62	libshairplay.raop_init.argtypes = [POINTER(RaopNativeCallbacks), c_char_p]
	63	libshairplay.raop_start.restype = c_int
a68fedbb	64	libshairplay.raop_start.argtypes = [c_void_p, POINTER(c_ushort), POINTER(c_char), c_int, c_char_p]
8be1424a JVH	65	libshairplay.raop_stop.restype = None
	66	libshairplay.raop_stop.argtypes = [c_void_p]
	67	libshairplay.raop_destroy.restype = None
	68	libshairplay.raop_destroy.argtypes = [c_void_p]
	69
c1b1e2c3 JVH	70	def LoadShairplay(path):
	71	if sys.maxsize < 2**32:
	72	libname = "shairplay32"
	73	else:
	74	libname = "shairplay64"
	75
	76	if platform.system() == "Windows":
	77	libname = libname + ".dll"
	78	elif platform.system() == "Darwin":
	79	libname = "lib" + libname + ".dylib"
	80	else:
	81	libname = "lib" + libname + ".so"
	82
	83	try:
	84	fullpath = os.path.join(path, libname)
	85	libshairplay = cdll.LoadLibrary(fullpath)
	86	except:
	87	raise RuntimeError("Couldn't load shairplay library " + libname)
	88
	89	InitShairplay(libshairplay)
8be1424a JVH	90	return libshairplay
	91
	92	RSA_KEY = """
	93	-----BEGIN RSA PRIVATE KEY-----
	94	MIIEpQIBAAKCAQEA59dE8qLieItsH1WgjrcFRKj6eUWqi+bGLOX1HL3U3GhC/j0Qg90u3sG/1CUt
	95	wC5vOYvfDmFI6oSFXi5ELabWJmT2dKHzBJKa3k9ok+8t9ucRqMd6DZHJ2YCCLlDRKSKv6kDqnw4U
	96	wPdpOMXziC/AMj3Z/lUVX1G7WSHCAWKf1zNS1eLvqr+boEjXuBOitnZ/bDzPHrTOZz0Dew0uowxf
	97	/+sG+NCK3eQJVxqcaJ/vEHKIVd2M+5qL71yJQ+87X6oV3eaYvt3zWZYD6z5vYTcrtij2VZ9Zmni/
	98	UAaHqn9JdsBWLUEpVviYnhimNVvYFZeCXg/IdTQ+x4IRdiXNv5hEewIDAQABAoIBAQDl8Axy9XfW
	99	BLmkzkEiqoSwF0PsmVrPzH9KsnwLGH+QZlvjWd8SWYGN7u1507HvhF5N3drJoVU3O14nDY4TFQAa
	100	LlJ9VM35AApXaLyY1ERrN7u9ALKd2LUwYhM7Km539O4yUFYikE2nIPscEsA5ltpxOgUGCY7b7ez5
	101	NtD6nL1ZKauw7aNXmVAvmJTcuPxWmoktF3gDJKK2wxZuNGcJE0uFQEG4Z3BrWP7yoNuSK3dii2jm
	102	lpPHr0O/KnPQtzI3eguhe0TwUem/eYSdyzMyVx/YpwkzwtYL3sR5k0o9rKQLtvLzfAqdBxBurciz
	103	aaA/L0HIgAmOit1GJA2saMxTVPNhAoGBAPfgv1oeZxgxmotiCcMXFEQEWflzhWYTsXrhUIuz5jFu
	104	a39GLS99ZEErhLdrwj8rDDViRVJ5skOp9zFvlYAHs0xh92ji1E7V/ysnKBfsMrPkk5KSKPrnjndM
	105	oPdevWnVkgJ5jxFuNgxkOLMuG9i53B4yMvDTCRiIPMQ++N2iLDaRAoGBAO9v//mU8eVkQaoANf0Z
	106	oMjW8CN4xwWA2cSEIHkd9AfFkftuv8oyLDCG3ZAf0vrhrrtkrfa7ef+AUb69DNggq4mHQAYBp7L+
	107	k5DKzJrKuO0r+R0YbY9pZD1+/g9dVt91d6LQNepUE/yY2PP5CNoFmjedpLHMOPFdVgqDzDFxU8hL
	108	AoGBANDrr7xAJbqBjHVwIzQ4To9pb4BNeqDndk5Qe7fT3+/H1njGaC0/rXE0Qb7q5ySgnsCb3DvA
	109	cJyRM9SJ7OKlGt0FMSdJD5KG0XPIpAVNwgpXXH5MDJg09KHeh0kXo+QA6viFBi21y340NonnEfdf
	110	54PX4ZGS/Xac1UK+pLkBB+zRAoGAf0AY3H3qKS2lMEI4bzEFoHeK3G895pDaK3TFBVmD7fV0Zhov
	111	17fegFPMwOII8MisYm9ZfT2Z0s5Ro3s5rkt+nvLAdfC/PYPKzTLalpGSwomSNYJcB9HNMlmhkGzc
	112	1JnLYT4iyUyx6pcZBmCd8bD0iwY/FzcgNDaUmbX9+XDvRA0CgYEAkE7pIPlE71qvfJQgoA9em0gI
	113	LAuE4Pu13aKiJnfft7hIjbK+5kyb3TysZvoyDnb3HOKvInK7vXbKuU4ISgxB2bB3HcYzQMGsz1qJ
	114	2gG0N5hvJpzwwhbhXqFKA4zaaSrw622wDniAK5MlIE0tIAKKP4yxNGjoD2QYjhBGuhvkWKY=
	115	-----END RSA PRIVATE KEY-----
	116	"""
	117
	118	class RaopCallbacks:
	119	def audio_init(self, bits, channels, samplerate):
	120	raise NotImplementedError()
	121
	122	def audio_set_volume(self, session, volume):
	123	pass
	124
	125	def audio_process(self, session, buffer):
	126	raise NotImplementedError()
	127
	128	def audio_flush(self, session):
	129	pass
	130
	131	def audio_destroy(self, session):
	132	pass
	133
	134	class RaopService:
	135	def audio_init_cb(self, cls, bits, channels, samplerate):
	136	session = self.callbacks.audio_init(bits, channels, samplerate)
1f0de05c JVH	137	self.sessions.append(session)
1f0de05c JVH	138	return session
8be1424a JVH	139
	140	def audio_set_volume_cb(self, cls, sessionptr, volume):
	141	session = cast(sessionptr, py_object).value
	142	self.callbacks.audio_set_volume(session, volume)
	143
	144	def audio_process_cb(self, cls, sessionptr, buffer, buflen):
	145	session = cast(sessionptr, py_object).value
	146	strbuffer = string_at(buffer, buflen)
	147	self.callbacks.audio_process(session, strbuffer)
	148
	149	def audio_flush_cb(self, cls, sessionptr):
	150	session = cast(sessionptr, py_object).value
	151	self.callbacks.audio_flush(session)
	152
	153	def audio_destroy_cb(self, cls, sessionptr):
	154	session = cast(sessionptr, py_object).value
	155	self.callbacks.audio_destroy(session)
1f0de05c JVH	156	if session in self.sessions:
1f0de05c JVH	157	self.sessions.remove(session)
8be1424a JVH	158
	159
	160	def __init__(self, libshairplay, callbacks):
	161	self.libshairplay = libshairplay
	162	self.callbacks = callbacks
1f0de05c	163	self.sessions = []
8be1424a JVH	164	self.instance = None
	165
	166	# We need to hold a reference to native_callbacks
	167	self.native_callbacks = RaopNativeCallbacks()
	168	self.native_callbacks.audio_init = audio_init_prototype(self.audio_init_cb)
	169	self.native_callbacks.audio_set_volume = audio_set_volume_prototype(self.audio_set_volume_cb)
	170	self.native_callbacks.audio_process = audio_process_prototype(self.audio_process_cb)
	171	self.native_callbacks.audio_flush = audio_flush_prototype(self.audio_flush_cb)
	172	self.native_callbacks.audio_destroy = audio_destroy_prototype(self.audio_destroy_cb)
	173
	174	# Initialize the raop instance with our callbacks
	175	self.instance = self.libshairplay.raop_init(pointer(self.native_callbacks), RSA_KEY)
	176	if self.instance == None:
	177	raise RuntimeError("Initializing library failed")
	178
	179	def __del__(self):
	180	if self.instance != None:
	181	self.libshairplay.raop_destroy(self.instance)
	182	self.instance = None
	183
a68fedbb	184	def start(self, port, hwaddrstr, password=None):
8be1424a JVH	185	port = c_ushort(port)
	186	hwaddr = create_string_buffer(hwaddrstr, len(hwaddrstr))
	187
a68fedbb	188	ret = self.libshairplay.raop_start(self.instance, pointer(port), hwaddr, c_int(len(hwaddr)), password)
8be1424a JVH	189	if ret < 0:
	190	raise RuntimeError("Starting RAOP instance failed")
	191	return port.value
	192
	193	def stop(self):
	194	self.libshairplay.raop_stop(self.instance)
	195
	196	class DnssdService:
	197	def __init__(self, libshairplay):
	198	self.libshairplay = libshairplay
	199	self.instance = None
	200
8be1424a JVH	201	error = c_int(0)
8be1424a JVH	202
094e4ad1	203	self.instance = self.libshairplay.dnssd_init(pointer(error))
8be1424a JVH	204	if self.instance == None:
	205	raise RuntimeError("Initializing library failed: " + str(error.value))
	206
	207	def __del__(self):
	208	if self.instance != None:
	209	self.libshairplay.dnssd_destroy(self.instance)
	210	self.instance = None
	211
a68fedbb	212	def register_raop(self, name, port, hwaddrstr, password=False):
094e4ad1	213	hwaddr = create_string_buffer(hwaddrstr, len(hwaddrstr))
a68fedbb JVH	214	use_pw = c_int(0)
	215	if password:
	216	use_pw = c_int(1)
	217	self.libshairplay.dnssd_register_raop(self.instance, name, c_ushort(port), hwaddr, len(hwaddr), use_pw)
8be1424a JVH	218
	219	def unregister_raop(self):
	220	self.libshairplay.dnssd_unregister_raop(self.instance)
	221
094e4ad1 JVH	222	def register_airplay(self, name, port, hwaddrstr):
	223	hwaddr = create_string_buffer(hwaddrstr, len(hwaddrstr))
	224	self.libshairplay.dnssd_register_airplay(self.instance, name, c_ushort(port), hwaddr, len(hwaddr))
8be1424a JVH	225
	226	def unregister_airplay(self):
	227	self.libshairplay.dnssd_unregister_airplay(self.instance)
	228