[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 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)

	# 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]
	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]
	libshairplay.raop_stop.restype = None
	libshairplay.raop_stop.argtypes = [c_void_p]
	libshairplay.raop_destroy.restype = None
	libshairplay.raop_destroy.argtypes = [c_void_p]

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

	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
	45	def LoadShairplay(path):
	46	if sys.maxsize < 2**32:
	47	libname = "shairplay32"
	48	else:
	49	libname = "shairplay64"
	50
	51	if platform.system() == "Windows":
	52	libname = libname + ".dll"
	53	elif platform.system() == "Darwin":
	54	libname = "lib" + libname + ".dylib"
	55	else:
	56	libname = "lib" + libname + ".so"
	57
	58	try:
	59	fullpath = os.path.join(path, libname)
	60	libshairplay = cdll.LoadLibrary(fullpath)
	61	except:
	62	raise RuntimeError("Couldn't load shairplay library " + libname)
	63
	64	# Initialize dnssd related functions
	65	libshairplay.dnssd_init.restype = c_void_p
094e4ad1	66	libshairplay.dnssd_init.argtypes = [POINTER(c_int)]
8be1424a	67	libshairplay.dnssd_register_raop.restype = c_int
094e4ad1	68	libshairplay.dnssd_register_raop.argtypes = [c_void_p, c_char_p, c_ushort, POINTER(c_char), c_int]
8be1424a	69	libshairplay.dnssd_register_airplay.restype = c_int
094e4ad1	70	libshairplay.dnssd_register_airplay.argtypes = [c_void_p, c_char_p, c_ushort, POINTER(c_char), c_int]
8be1424a JVH	71	libshairplay.dnssd_unregister_raop.restype = None
	72	libshairplay.dnssd_unregister_raop.argtypes = [c_void_p]
	73	libshairplay.dnssd_unregister_airplay.restype = None
	74	libshairplay.dnssd_unregister_airplay.argtypes = [c_void_p]
	75	libshairplay.dnssd_destroy.restype = None
	76	libshairplay.dnssd_destroy.argtypes = [c_void_p]
	77
	78	# Initialize raop related functions
	79	libshairplay.raop_init.restype = c_void_p
	80	libshairplay.raop_init.argtypes = [POINTER(RaopNativeCallbacks), c_char_p]
	81	libshairplay.raop_start.restype = c_int
	82	libshairplay.raop_start.argtypes = [c_void_p, POINTER(c_ushort), POINTER(c_char), c_int]
	83	libshairplay.raop_stop.restype = None
	84	libshairplay.raop_stop.argtypes = [c_void_p]
	85	libshairplay.raop_destroy.restype = None
	86	libshairplay.raop_destroy.argtypes = [c_void_p]
	87
	88	return libshairplay
	89
	90	RSA_KEY = """
	91	-----BEGIN RSA PRIVATE KEY-----
	92	MIIEpQIBAAKCAQEA59dE8qLieItsH1WgjrcFRKj6eUWqi+bGLOX1HL3U3GhC/j0Qg90u3sG/1CUt
	93	wC5vOYvfDmFI6oSFXi5ELabWJmT2dKHzBJKa3k9ok+8t9ucRqMd6DZHJ2YCCLlDRKSKv6kDqnw4U
	94	wPdpOMXziC/AMj3Z/lUVX1G7WSHCAWKf1zNS1eLvqr+boEjXuBOitnZ/bDzPHrTOZz0Dew0uowxf
	95	/+sG+NCK3eQJVxqcaJ/vEHKIVd2M+5qL71yJQ+87X6oV3eaYvt3zWZYD6z5vYTcrtij2VZ9Zmni/
	96	UAaHqn9JdsBWLUEpVviYnhimNVvYFZeCXg/IdTQ+x4IRdiXNv5hEewIDAQABAoIBAQDl8Axy9XfW
	97	BLmkzkEiqoSwF0PsmVrPzH9KsnwLGH+QZlvjWd8SWYGN7u1507HvhF5N3drJoVU3O14nDY4TFQAa
	98	LlJ9VM35AApXaLyY1ERrN7u9ALKd2LUwYhM7Km539O4yUFYikE2nIPscEsA5ltpxOgUGCY7b7ez5
	99	NtD6nL1ZKauw7aNXmVAvmJTcuPxWmoktF3gDJKK2wxZuNGcJE0uFQEG4Z3BrWP7yoNuSK3dii2jm
	100	lpPHr0O/KnPQtzI3eguhe0TwUem/eYSdyzMyVx/YpwkzwtYL3sR5k0o9rKQLtvLzfAqdBxBurciz
	101	aaA/L0HIgAmOit1GJA2saMxTVPNhAoGBAPfgv1oeZxgxmotiCcMXFEQEWflzhWYTsXrhUIuz5jFu
	102	a39GLS99ZEErhLdrwj8rDDViRVJ5skOp9zFvlYAHs0xh92ji1E7V/ysnKBfsMrPkk5KSKPrnjndM
	103	oPdevWnVkgJ5jxFuNgxkOLMuG9i53B4yMvDTCRiIPMQ++N2iLDaRAoGBAO9v//mU8eVkQaoANf0Z
	104	oMjW8CN4xwWA2cSEIHkd9AfFkftuv8oyLDCG3ZAf0vrhrrtkrfa7ef+AUb69DNggq4mHQAYBp7L+
	105	k5DKzJrKuO0r+R0YbY9pZD1+/g9dVt91d6LQNepUE/yY2PP5CNoFmjedpLHMOPFdVgqDzDFxU8hL
	106	AoGBANDrr7xAJbqBjHVwIzQ4To9pb4BNeqDndk5Qe7fT3+/H1njGaC0/rXE0Qb7q5ySgnsCb3DvA
	107	cJyRM9SJ7OKlGt0FMSdJD5KG0XPIpAVNwgpXXH5MDJg09KHeh0kXo+QA6viFBi21y340NonnEfdf
	108	54PX4ZGS/Xac1UK+pLkBB+zRAoGAf0AY3H3qKS2lMEI4bzEFoHeK3G895pDaK3TFBVmD7fV0Zhov
	109	17fegFPMwOII8MisYm9ZfT2Z0s5Ro3s5rkt+nvLAdfC/PYPKzTLalpGSwomSNYJcB9HNMlmhkGzc
	110	1JnLYT4iyUyx6pcZBmCd8bD0iwY/FzcgNDaUmbX9+XDvRA0CgYEAkE7pIPlE71qvfJQgoA9em0gI
	111	LAuE4Pu13aKiJnfft7hIjbK+5kyb3TysZvoyDnb3HOKvInK7vXbKuU4ISgxB2bB3HcYzQMGsz1qJ
	112	2gG0N5hvJpzwwhbhXqFKA4zaaSrw622wDniAK5MlIE0tIAKKP4yxNGjoD2QYjhBGuhvkWKY=
	113	-----END RSA PRIVATE KEY-----
	114	"""
	115
	116	class RaopCallbacks:
	117	def audio_init(self, bits, channels, samplerate):
	118	raise NotImplementedError()
	119
	120	def audio_set_volume(self, session, volume):
	121	pass
	122
	123	def audio_process(self, session, buffer):
	124	raise NotImplementedError()
	125
	126	def audio_flush(self, session):
	127	pass
	128
	129	def audio_destroy(self, session):
	130	pass
	131
	132	class RaopService:
	133	def audio_init_cb(self, cls, bits, channels, samplerate):
	134	session = self.callbacks.audio_init(bits, channels, samplerate)
1f0de05c JVH	135	self.sessions.append(session)
1f0de05c JVH	136	return session
8be1424a JVH	137
	138	def audio_set_volume_cb(self, cls, sessionptr, volume):
	139	session = cast(sessionptr, py_object).value
	140	self.callbacks.audio_set_volume(session, volume)
	141
	142	def audio_process_cb(self, cls, sessionptr, buffer, buflen):
	143	session = cast(sessionptr, py_object).value
	144	strbuffer = string_at(buffer, buflen)
	145	self.callbacks.audio_process(session, strbuffer)
	146
	147	def audio_flush_cb(self, cls, sessionptr):
	148	session = cast(sessionptr, py_object).value
	149	self.callbacks.audio_flush(session)
	150
	151	def audio_destroy_cb(self, cls, sessionptr):
	152	session = cast(sessionptr, py_object).value
	153	self.callbacks.audio_destroy(session)
1f0de05c JVH	154	if session in self.sessions:
1f0de05c JVH	155	self.sessions.remove(session)
8be1424a JVH	156
	157
	158	def __init__(self, libshairplay, callbacks):
	159	self.libshairplay = libshairplay
	160	self.callbacks = callbacks
1f0de05c	161	self.sessions = []
8be1424a JVH	162	self.instance = None
	163
	164	# We need to hold a reference to native_callbacks
	165	self.native_callbacks = RaopNativeCallbacks()
	166	self.native_callbacks.audio_init = audio_init_prototype(self.audio_init_cb)
	167	self.native_callbacks.audio_set_volume = audio_set_volume_prototype(self.audio_set_volume_cb)
	168	self.native_callbacks.audio_process = audio_process_prototype(self.audio_process_cb)
	169	self.native_callbacks.audio_flush = audio_flush_prototype(self.audio_flush_cb)
	170	self.native_callbacks.audio_destroy = audio_destroy_prototype(self.audio_destroy_cb)
	171
	172	# Initialize the raop instance with our callbacks
	173	self.instance = self.libshairplay.raop_init(pointer(self.native_callbacks), RSA_KEY)
	174	if self.instance == None:
	175	raise RuntimeError("Initializing library failed")
	176
	177	def __del__(self):
	178	if self.instance != None:
	179	self.libshairplay.raop_destroy(self.instance)
	180	self.instance = None
	181
	182	def start(self, port, hwaddrstr):
	183	port = c_ushort(port)
	184	hwaddr = create_string_buffer(hwaddrstr, len(hwaddrstr))
	185
	186	ret = self.libshairplay.raop_start(self.instance, pointer(port), hwaddr, c_int(len(hwaddr)))
	187	if ret < 0:
	188	raise RuntimeError("Starting RAOP instance failed")
	189	return port.value
	190
	191	def stop(self):
	192	self.libshairplay.raop_stop(self.instance)
	193
	194	class DnssdService:
	195	def __init__(self, libshairplay):
	196	self.libshairplay = libshairplay
	197	self.instance = None
	198
8be1424a JVH	199	error = c_int(0)
8be1424a JVH	200
094e4ad1	201	self.instance = self.libshairplay.dnssd_init(pointer(error))
8be1424a JVH	202	if self.instance == None:
	203	raise RuntimeError("Initializing library failed: " + str(error.value))
	204
	205	def __del__(self):
	206	if self.instance != None:
	207	self.libshairplay.dnssd_destroy(self.instance)
	208	self.instance = None
	209
094e4ad1 JVH	210	def register_raop(self, name, port, hwaddrstr):
	211	hwaddr = create_string_buffer(hwaddrstr, len(hwaddrstr))
	212	self.libshairplay.dnssd_register_raop(self.instance, name, c_ushort(port), hwaddr, len(hwaddr))
8be1424a JVH	213
	214	def unregister_raop(self):
	215	self.libshairplay.dnssd_unregister_raop(self.instance)
	216
094e4ad1 JVH	217	def register_airplay(self, name, port, hwaddrstr):
	218	hwaddr = create_string_buffer(hwaddrstr, len(hwaddrstr))
	219	self.libshairplay.dnssd_register_airplay(self.instance, name, c_ushort(port), hwaddr, len(hwaddr))
8be1424a JVH	220
	221	def unregister_airplay(self):
	222	self.libshairplay.dnssd_unregister_airplay(self.instance)
	223