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	diff --git a/sipsimple/core/_core.helper.pxi b/sipsimple/core/_core.helper.pxi
	index ac33d4a2..9f9b5939 100644
	--- a/sipsimple/core/_core.helper.pxi
	+++ b/sipsimple/core/_core.helper.pxi
	@@ -1,380 +1,352 @@
	# Copyright (C) 2008-2011 AG Projects. See LICENSE for details.
	#

	import re
	import urllib


	# Classes
	#

	cdef class BaseCredentials:
	def __cinit__(self, args, *kwargs):
	global _Credentials_scheme_digest, _Credentials_realm_wildcard
	self._credentials.scheme = _Credentials_scheme_digest.pj_str
	self._credentials.data_type = PJSIP_CRED_DATA_PLAIN_PASSWD

	def __init__(self, args, *kwargs):
	raise TypeError("BaseCredentials cannot be instantiated directly")

	def __repr__(self):
	return "%s(%r, %r, %r)" % (self.__class__.__name__, self.username, self.password, self.realm)

	def __str__(self):
	return '<%s for "%s@%s">' % (self.__class__.__name__, self.username, self.realm)

	cdef pjsip_cred_info* get_cred_info(self):
	return &self._credentials

	def Credentials_new(cls, BaseCredentials credentials):
	return cls(credentials.username, credentials.password, credentials.realm)

	cdef class Credentials(BaseCredentials):
	def __init__(self, str username not None, str password not None, str realm='*'):
	self.username = username
	self.realm = realm
	self.password = password

	property username:

	def __get__(self):
	return self._username

	def __set__(self, str username not None):
	_str_to_pj_str(username, &self._credentials.username)
	self._username = username

	property realm:

	def __get__(self):
	return self._realm

	def __set__(self, str realm not None):
	_str_to_pj_str(realm, &self._credentials.realm)
	self._realm = realm

	property password:

	def __get__(self):
	return self._password

	def __set__(self, str password not None):
	_str_to_pj_str(password, &self._credentials.data)
	self._password = password

	new = classmethod(Credentials_new)

	del Credentials_new

	def FrozenCredentials_new(cls, BaseCredentials credentials):
	if isinstance(credentials, FrozenCredentials):
	return credentials
	return cls(credentials.username, credentials.password, credentials.realm)

	cdef class FrozenCredentials(BaseCredentials):
	def __init__(self, str username not None, str password not None, str realm='*'):
	if not self.initialized:
	self.username = username
	self.realm = realm
	self.password = password
	_str_to_pj_str(self.username, &self._credentials.username)
	_str_to_pj_str(self.realm, &self._credentials.realm)
	_str_to_pj_str(self.password, &self._credentials.data)
	initialized = 1

	def __hash__(self):
	return hash((self.username, self.realm, self.password))

	new = classmethod(FrozenCredentials_new)

	del FrozenCredentials_new


	cdef object BaseSIPURI_richcmp(object self, object other, int op) with gil:
	cdef int eq = 1
	if op not in [2,3]:
	return NotImplemented
	if not isinstance(other, BaseSIPURI):
	return NotImplemented
	for attr in ("user", "password", "host", "port", "secure", "parameters", "headers"):
	if getattr(self, attr) != getattr(other, attr):
	eq = 0
	break
	if op == 2:
	return bool(eq)
	else:
	return not eq

	cdef class BaseSIPURI:
	def __init__(self, args, *kwargs):
	raise TypeError("BaseSIPURI cannot be instantiated directly")

	def __reduce__(self):
	return (self.__class__.__name__, (self.host, self.user, self.password, self.port, self.secure, self.parameters, self.headers), None)

	def __repr__(self):
	return "%s(%r, %r, %r, %r, %r, %r, %r)" % (self.__class__.__name__, self.host, self.user, self.password, self.port, self.secure, self.parameters, self.headers)

	def __str__(self):
	cdef object string = self.host
	if self.port:
	string = "%s:%d" % (string, self.port)
	if self.user is not None:
	if self.password is not None:
	string = "%s:%s@%s" % (self.user, self.password, string)
	else:
	string = "%s@%s" % (self.user, string)
	if self.parameters:
	string += ";" + ";".join(["%s%s" % (name, ("" if val is None else "="+urllib.quote(val, safe="()[]-_.!~*'/:&+$")))
	for name, val in self.parameters.iteritems()])
	if self.headers:
	string += "?" + "&".join(["%s%s" % (name, ("" if val is None else "="+urllib.quote(val, safe="()[]-_.!~*'/:?+$")))
	for name, val in self.headers.iteritems()])
	if self.secure:
	string = "sips:" + string
	else:
	string = "sip:" + string
	return string

	def __richcmp__(self, other, op):
	return BaseSIPURI_richcmp(self, other, op)

	property transport:
	def __get__(self):
	return self.parameters.get('transport', 'udp')

	def __set__(self, str transport not None):
	if isinstance(self, FrozenSIPURI):
	raise AttributeError("can't set readonly attribute")
	if transport.lower() == 'udp':
	self.parameters.pop('transport', None)
	else:
	self.parameters['transport'] = transport

	def matches(self, address):
	match = re.match(r'^((?P<scheme>sip\|sips):)?(?P<username>.+?)(@(?P<domain>.+?)(:(?P<port>\d+?))?)?(;(?P<parameters>.+?))?(\?(?P<headers>.+?))?$', address)
	if match is None:
	return False
	components = match.groupdict()
	if components['scheme'] is not None:
	expected_scheme = 'sips' if self.secure else 'sip'
	if components['scheme'] != expected_scheme:
	return False
	if components['username'] != self.user:
	return False
	if components['domain'] is not None and components['domain'] != self.host:
	return False
	if components['port'] is not None and int(components['port']) != self.port:
	return False
	if components['parameters']:
	parameters = dict([(name, value) for name, sep, value in [param.partition('=') for param in components['parameters'].split(';')]])
	expected_parameters = dict([(name, str(value) if value is not None else None) for name, value in self.parameters.iteritems() if name in parameters])
	if parameters != expected_parameters:
	return False
	if components['headers']:
	headers = dict([(name, value) for name, sep, value in [header.partition('=') for header in components['headers'].split('&')]])
	expected_headers = dict([(name, str(value) if value is not None else None) for name, value in self.headers.iteritems() if name in headers])
	if headers != expected_headers:
	return False
	return True


	def SIPURI_new(cls, BaseSIPURI sipuri):
	return cls(user=sipuri.user, password=sipuri.password, host=sipuri.host, port=sipuri.port, secure=sipuri.secure, parameters=dict(sipuri.parameters), headers=dict(sipuri.headers))

	-def SIPURI_parse(cls, str uri_str):
	- cdef bytes uri_bytes = uri_str.encode()
	+def SIPURI_parse(cls, object uri_str):
	+ if not isinstance(uri_str, basestring):
	+ raise TypeError('a string or unicode is required')
	+ cdef bytes uri_bytes = str(uri_str)
	cdef pjsip_uri *uri = NULL
	cdef pj_pool_t *pool = NULL
	cdef pj_str_t tmp
	cdef char buffer[4096]
	pool = pj_pool_create_on_buf("SIPURI_parse", buffer, sizeof(buffer))
	if pool == NULL:
	raise SIPCoreError("Could not allocate memory pool")
	pj_strdup2_with_null(pool, &tmp, uri_bytes)
	uri = pjsip_parse_uri(pool, tmp.ptr, tmp.slen, 0)
	if uri == NULL:
	raise SIPCoreError("Not a valid SIP URI: %s" % uri_str)
	return SIPURI_create(<pjsip_sip_uri *>pjsip_uri_get_uri(uri))

	cdef class SIPURI(BaseSIPURI):
	- def __init__(self, str host not None, str user=None, str password=None, object port=None,
	+ def __init__(self, object host not None, object user=None, object password=None, object port=None,
	bint secure=False, dict parameters=None, dict headers=None):
	self.host = host
	self.user = user
	self.password = password
	self.port = port
	self.secure = secure
	self.parameters = parameters if parameters is not None else {}
	self.headers = headers if headers is not None else {}

	- property host:
	-
	- def __get__(self):
	- return self._host
	-
	- def __set__(self, str host not None):
	- self._host = host
	-
	property port:

	def __get__(self):
	return self._port

	def __set__(self, object port):
	if port is not None:
	port = int(port)
	if not (0 < port <= 65535):
	raise ValueError("Invalid port: %d" % port)
	self._port = port

	- property parameters:
	-
	- def __get__(self):
	- return self._parameters
	-
	- def __set__(self, dict parameters not None):
	- self._parameters = parameters
	-
	- property headers:
	-
	- def __get__(self):
	- return self._headers
	-
	- def __set__(self, dict headers not None):
	- self._headers = headers
	-
	- property secure:
	-
	- def __get__(self):
	- return self._secure
	-
	- def __set__(self, bint value):
	- self._secure = value
	-
	new = classmethod(SIPURI_new)
	parse = classmethod(SIPURI_parse)

	del SIPURI_new
	del SIPURI_parse


	def FrozenSIPURI_new(cls, BaseSIPURI sipuri):
	if isinstance(sipuri, FrozenSIPURI):
	return sipuri
	return cls(user=sipuri.user, password=sipuri.password, host=sipuri.host, port=sipuri.port, secure=sipuri.secure, parameters=frozendict(sipuri.parameters), headers=frozendict(sipuri.headers))

	-def FrozenSIPURI_parse(cls, str uri_str):
	- cdef bytes uri_bytes = uri_str.encode()
	+def FrozenSIPURI_parse(cls, object uri_str):
	+ if not isinstance(uri_str, basestring):
	+ raise TypeError('a string or unicode is required')
	+ cdef bytes uri_bytes = str(uri_str)
	cdef pjsip_uri *uri = NULL
	cdef pj_pool_t *pool = NULL
	cdef pj_str_t tmp
	cdef char buffer[4096]
	pool = pj_pool_create_on_buf("FrozenSIPURI_parse", buffer, sizeof(buffer))
	if pool == NULL:
	raise SIPCoreError("Could not allocate memory pool")
	pj_strdup2_with_null(pool, &tmp, uri_bytes)
	uri = pjsip_parse_uri(pool, tmp.ptr, tmp.slen, 0)
	if uri == NULL:
	raise SIPCoreError("Not a valid SIP URI: %s" % uri_str)
	return FrozenSIPURI_create(<pjsip_sip_uri *>pjsip_uri_get_uri(uri))

	cdef class FrozenSIPURI(BaseSIPURI):
	- def __init__(self, str host not None, str user=None, str password=None, object port=None,
	+ def __init__(self, object host not None, object user=None, object password=None, object port=None,
	bint secure=False, frozendict parameters not None=frozendict(), frozendict headers not None=frozendict()):
	if not self.initialized:
	if port is not None:
	port = int(port)
	if not (0 < port <= 65535):
	raise ValueError("Invalid port: %d" % port)
	self.host = host
	self.user = user
	self.password = password
	self.port = port
	self.secure = secure
	self.parameters = parameters
	self.headers = headers
	self.initialized = 1

	def __hash__(self):
	return hash((self.user, self.password, self.host, self.port, self.secure, self.parameters, self.headers))

	def __richcmp__(self, other, op):
	return BaseSIPURI_richcmp(self, other, op)

	new = classmethod(FrozenSIPURI_new)
	parse = classmethod(FrozenSIPURI_parse)

	del FrozenSIPURI_new
	del FrozenSIPURI_parse


	# Factory functions
	#

	cdef dict _pj_sipuri_to_dict(pjsip_sip_uri *uri):
	cdef object scheme
	cdef pj_str_t *scheme_str
	cdef pjsip_param *param
	cdef object parameters = {}
	cdef object headers = {}
	cdef object kwargs = dict(parameters=parameters, headers=headers)
	kwargs["host"] = _pj_str_to_str(uri.host)
	scheme = _pj_str_to_str(pjsip_uri_get_scheme(<pjsip_uri *>uri)[0])
	if scheme == "sip":
	kwargs["secure"] = False
	elif scheme == "sips":
	kwargs["secure"] = True
	else:
	raise SIPCoreError("Not a sip(s) URI")
	if uri.user.slen > 0:
	kwargs["user"] = _pj_str_to_str(uri.user)
	if uri.passwd.slen > 0:
	kwargs["password"] = _pj_str_to_str(uri.passwd)
	if uri.port > 0:
	kwargs["port"] = uri.port
	if uri.user_param.slen > 0:
	parameters["user"] = _pj_str_to_str(uri.user_param)
	if uri.method_param.slen > 0:
	parameters["method"] = _pj_str_to_str(uri.method_param)
	if uri.transport_param.slen > 0:
	parameters["transport"] = _pj_str_to_str(uri.transport_param)
	if uri.ttl_param != -1:
	parameters["ttl"] = uri.ttl_param
	if uri.lr_param != 0:
	parameters["lr"] = None
	if uri.maddr_param.slen > 0:
	parameters["maddr"] = _pj_str_to_str(uri.maddr_param)
	param = <pjsip_param > (<pj_list > &uri.other_param).next
	while param != &uri.other_param:
	if param.value.slen == 0:
	parameters[_pj_str_to_str(param.name)] = None
	else:
	parameters[_pj_str_to_str(param.name)] = _pj_str_to_str(param.value)
	param = <pjsip_param > (<pj_list > param).next
	param = <pjsip_param > (<pj_list > &uri.header_param).next
	while param != &uri.header_param:
	if param.value.slen == 0:
	headers[_pj_str_to_str(param.name)] = None
	else:
	headers[_pj_str_to_str(param.name)] = _pj_str_to_str(param.value)
	param = <pjsip_param > (<pj_list > param).next
	return kwargs

	cdef SIPURI SIPURI_create(pjsip_sip_uri *uri):
	cdef dict kwargs = _pj_sipuri_to_dict(uri)
	return SIPURI(**kwargs)

	cdef FrozenSIPURI FrozenSIPURI_create(pjsip_sip_uri *uri):
	cdef dict kwargs = _pj_sipuri_to_dict(uri)
	kwargs["parameters"] = frozendict(kwargs["parameters"])
	kwargs["headers"] = frozendict(kwargs["headers"])
	return FrozenSIPURI(**kwargs)


	# Globals
	#

	cdef PJSTR _Credentials_scheme_digest = PJSTR("digest")


	diff --git a/sipsimple/core/_core.pxd b/sipsimple/core/_core.pxd
	index cd9c247f..a518452e 100644
	--- a/sipsimple/core/_core.pxd
	+++ b/sipsimple/core/_core.pxd
	@@ -1,2158 +1,2158 @@
	# Copyright (C) 2008-2011 AG Projects. See LICENSE for details.
	#

	cdef extern from *:
	ctypedef char char_ptr_const "const char "
	enum:
	PJ_SVN_REV "PJ_SVN_REVISION"

	# system imports

	from libc.stdlib cimport malloc, free
	from libc.string cimport memcpy


	# Python C imports

	from cpython.float cimport PyFloat_AsDouble
	from cpython.ref cimport Py_INCREF, Py_DECREF
	from cpython.string cimport PyString_FromString, PyString_FromStringAndSize, PyString_AsString, PyString_Size


	# PJSIP imports

	cdef extern from "pjlib.h":

	# constants
	enum:
	PJ_ERR_MSG_SIZE
	enum:
	PJ_ERRNO_START_SYS
	PJ_EBUG
	PJ_ETOOMANY
	enum:
	PJ_MAX_OBJ_NAME

	# init / shutdown
	int pj_init() nogil
	void pj_shutdown() nogil

	# version
	char *pj_get_version() nogil

	# string
	struct pj_str_t:
	char *ptr
	int slen

	# errors
	pj_str_t pj_strerror(int statcode, char *buf, int bufsize) nogil

	# logging
	enum:
	PJ_LOG_MAX_LEVEL
	enum pj_log_decoration:
	PJ_LOG_HAS_YEAR
	PJ_LOG_HAS_MONTH
	PJ_LOG_HAS_DAY_OF_MON
	PJ_LOG_HAS_TIME
	PJ_LOG_HAS_MICRO_SEC
	PJ_LOG_HAS_SENDER
	PJ_LOG_HAS_INDENT
	void pj_log_set_decor(int decor) nogil
	int pj_log_get_level() nogil
	void pj_log_set_level(int level) nogil
	void pj_log_set_log_func(void func(int level, char_ptr_const data, int len)) nogil

	# memory management
	struct pj_pool_t
	struct pj_pool_factory_policy:
	pass
	pj_pool_factory_policy pj_pool_factory_default_policy
	struct pj_pool_factory:
	pass
	struct pj_caching_pool:
	pj_pool_factory factory
	void pj_caching_pool_init(pj_caching_pool ch_pool, pj_pool_factory_policy policy, int max_capacity) nogil
	void pj_caching_pool_destroy(pj_caching_pool *ch_pool) nogil
	void pj_pool_alloc(pj_pool_t pool, int size) nogil
	void pj_pool_reset(pj_pool_t *pool) nogil
	pj_pool_t pj_pool_create_on_buf(char name, void *buf, int size) nogil
	pj_str_t pj_strdup2_with_null(pj_pool_t pool, pj_str_t dst, char src) nogil

	# threads
	enum:
	PJ_THREAD_DESC_SIZE
	struct pj_mutex_t
	struct pj_rwmutex_t
	struct pj_thread_t
	int pj_mutex_create_simple(pj_pool_t pool, char name, pj_mutex_t **mutex) nogil
	int pj_mutex_create_recursive(pj_pool_t pool, char name, pj_mutex_t **mutex) nogil
	int pj_mutex_lock(pj_mutex_t *mutex) nogil
	int pj_mutex_unlock(pj_mutex_t *mutex) nogil
	int pj_mutex_destroy(pj_mutex_t *mutex) nogil
	int pj_rwmutex_create(pj_pool_t pool, char name, pj_rwmutex_t **mutex) nogil
	int pj_rwmutex_lock_read(pj_rwmutex_t *mutex) nogil
	int pj_rwmutex_lock_write(pj_rwmutex_t *mutex) nogil
	int pj_rwmutex_unlock_read(pj_rwmutex_t *mutex) nogil
	int pj_rwmutex_unlock_write(pj_rwmutex_t *mutex) nogil
	int pj_rwmutex_destroy(pj_rwmutex_t *mutex) nogil
	int pj_thread_is_registered() nogil
	int pj_thread_register(char thread_name, long thread_desc, pj_thread_t **thread) nogil

	# sockets
	enum:
	PJ_INET6_ADDRSTRLEN
	struct pj_ioqueue_t
	struct pj_addr_hdr:
	unsigned int sa_family
	struct pj_sockaddr:
	pj_addr_hdr addr
	struct pj_sockaddr_in:
	pass
	int pj_AF_INET() nogil
	int pj_AF_INET6() nogil
	int pj_sockaddr_in_init(pj_sockaddr_in addr, pj_str_t cp, int port) nogil
	int pj_sockaddr_get_port(pj_sockaddr *addr) nogil
	char pj_sockaddr_print(pj_sockaddr addr, char *buf, int size, unsigned int flags) nogil
	int pj_sockaddr_has_addr(pj_sockaddr *addr) nogil
	int pj_sockaddr_init(int af, pj_sockaddr addr, pj_str_t cp, unsigned int port) nogil
	int pj_inet_pton(int af, pj_str_t src, void dst) nogil

	# dns
	struct pj_dns_resolver
	int pj_dns_resolver_set_ns(pj_dns_resolver resolver, unsigned count, pj_str_t servers, int *ports) nogil

	# time
	struct pj_time_val:
	long sec
	long msec
	void pj_gettimeofday(pj_time_val *tv) nogil
	void pj_time_val_normalize(pj_time_val *tv) nogil

	# timers
	struct pj_timer_heap_t
	struct pj_timer_entry:
	void *user_data
	int id
	pj_timer_entry pj_timer_entry_init(pj_timer_entry entry, int id, void *user_data,
	void cb(pj_timer_heap_t timer_heap, pj_timer_entry entry) with gil) nogil

	# lists
	struct pj_list:
	void *prev
	void *next
	void pj_list_init(pj_list *node) nogil
	void pj_list_insert_after(pj_list pos, pj_list node) nogil

	# random
	void pj_srand(unsigned int seed) nogil

	# maths
	struct pj_math_stat:
	int n
	int max
	int min
	int last
	int mean

	cdef extern from "pjlib-util.h":

	# init
	int pjlib_util_init() nogil

	cdef extern from "pjnath.h":

	# init
	int pjnath_init() nogil

	# STUN
	enum:
	PJ_STUN_PORT
	struct pj_stun_config:
	pass
	struct pj_stun_sock_cfg:
	pj_sockaddr bound_addr
	void pj_stun_config_init(pj_stun_config cfg, pj_pool_factory factory, unsigned int options,
	pj_ioqueue_t ioqueue, pj_timer_heap_t timer_heap) nogil

	# NAT detection
	struct pj_stun_nat_detect_result:
	int status
	char *status_text
	char *nat_type_name
	ctypedef pj_stun_nat_detect_result pj_stun_nat_detect_result_ptr_const "const pj_stun_nat_detect_result "
	int pj_stun_detect_nat_type(pj_sockaddr_in server, pj_stun_config stun_cfg, void *user_data,
	void pj_stun_nat_detect_cb(void *user_data,
	pj_stun_nat_detect_result_ptr_const res) with gil) nogil

	# ICE
	struct pj_ice_strans
	struct pj_ice_sess_cand:
	int type
	int comp_id
	int prio
	pj_sockaddr addr
	pj_sockaddr rel_addr
	struct pj_ice_sess_check:
	pj_ice_sess_cand *lcand
	pj_ice_sess_cand *rcand
	int state
	int nominated
	ctypedef pj_ice_sess_check pj_ice_sess_check_ptr_const "const pj_ice_sess_check "
	struct pj_ice_sess_comp:
	pj_ice_sess_check *valid_check
	struct pj_ice_sess_checklist:
	int count
	pj_ice_sess_check *checks
	struct pj_ice_sess:
	int comp_cnt
	pj_ice_sess_comp *comp
	int lcand_cnt
	pj_ice_sess_cand *lcand
	int rcand_cnt
	pj_ice_sess_cand *rcand
	pj_ice_sess_checklist valid_list
	struct pj_ice_strans_cfg_stun:
	pj_stun_sock_cfg cfg
	pj_str_t server
	unsigned int port
	struct pj_ice_strans_cfg:
	int af
	pj_stun_config stun_cfg
	pj_ice_strans_cfg_stun stun
	enum pj_ice_strans_op:
	PJ_ICE_STRANS_OP_INIT
	PJ_ICE_STRANS_OP_NEGOTIATION
	enum pj_ice_strans_state:
	PJ_ICE_STRANS_STATE_NULL
	PJ_ICE_STRANS_STATE_INIT
	PJ_ICE_STRANS_STATE_READY
	PJ_ICE_STRANS_STATE_SESS_READY
	PJ_ICE_STRANS_STATE_NEGO
	PJ_ICE_STRANS_STATE_RUNNING
	PJ_ICE_STRANS_STATE_FAILED
	enum pj_ice_cand_type:
	PJ_ICE_CAND_TYPE_HOST
	PJ_ICE_CAND_TYPE_SRFLX
	PJ_ICE_CAND_TYPE_PRFLX
	PJ_ICE_CAND_TYPE_RELAYED
	enum pj_ice_sess_check_state:
	PJ_ICE_SESS_CHECK_STATE_FROZEN
	PJ_ICE_SESS_CHECK_STATE_WAITING
	PJ_ICE_SESS_CHECK_STATE_IN_PROGRESS
	PJ_ICE_SESS_CHECK_STATE_SUCCEEDED
	PJ_ICE_SESS_CHECK_STATE_FAILED
	void pj_ice_strans_cfg_default(pj_ice_strans_cfg *cfg) nogil
	pj_ice_sess* pj_ice_strans_get_session(pj_ice_strans *ice_st)
	pj_time_val pj_ice_strans_get_start_time(pj_ice_strans *ice_st)
	pj_ice_sess_check_ptr_const pj_ice_strans_get_valid_pair(pj_ice_strans *ice_st, unsigned comp_id)

	cdef extern from "pjmedia.h":

	enum:
	PJMEDIA_ENOSNDREC
	PJMEDIA_ENOSNDPLAY

	enum:
	PJMEDIA_AUD_DEFAULT_CAPTURE_DEV
	PJMEDIA_AUD_DEFAULT_PLAYBACK_DEV
	PJMEDIA_AUD_DEV_CAP_EC
	PJMEDIA_AUD_DEV_CAP_EC_TAIL

	enum pjmedia_dir:
	PJMEDIA_DIR_PLAYBACK
	PJMEDIA_DIR_CAPTURE
	PJMEDIA_DIR_CAPTURE_PLAYBACK

	# codec manager
	struct pjmedia_codec_mgr
	enum:
	PJMEDIA_CODEC_MGR_MAX_CODECS
	struct pjmedia_codec_info:
	pj_str_t encoding_name
	unsigned int clock_rate
	unsigned int channel_cnt
	int pjmedia_codec_mgr_enum_codecs(pjmedia_codec_mgr mgr, unsigned int count,
	pjmedia_codec_info info, unsigned int prio) nogil
	int pjmedia_codec_mgr_set_codec_priority(pjmedia_codec_mgr mgr, pj_str_t codec_id, unsigned int prio) nogil

	# endpoint
	struct pjmedia_endpt
	int pjmedia_endpt_create(pj_pool_factory pf, pj_ioqueue_t ioqueue, int worker_cnt, pjmedia_endpt **p_endpt) nogil
	int pjmedia_endpt_destroy(pjmedia_endpt *endpt) nogil
	pj_ioqueue_t pjmedia_endpt_get_ioqueue(pjmedia_endpt endpt) nogil
	pjmedia_codec_mgr pjmedia_endpt_get_codec_mgr(pjmedia_endpt endpt) nogil

	# codecs
	int pjmedia_codec_g711_init(pjmedia_endpt *endpt) nogil
	int pjmedia_codec_g711_deinit() nogil

	# sound devices
	struct pjmedia_aud_dev_info:
	char *name
	int input_count
	int output_count
	struct pjmedia_aud_param:
	pjmedia_dir dir
	int play_id
	int rec_id
	int clock_rate
	int channel_count
	int samples_per_frame
	int bits_per_sample
	int flags
	int ec_enabled
	int ec_tail_ms
	struct pjmedia_aud_stream
	int pjmedia_aud_dev_count() nogil
	int pjmedia_aud_dev_get_info(int index, pjmedia_aud_dev_info *info) nogil
	int pjmedia_aud_stream_get_param(pjmedia_aud_stream strm, pjmedia_aud_param param) nogil
	enum pjmedia_aud_dev_event:
	PJMEDIA_AUD_DEV_DEFAULT_INPUT_CHANGED
	PJMEDIA_AUD_DEV_DEFAULT_OUTPUT_CHANGED
	PJMEDIA_AUD_DEV_LIST_WILL_REFRESH
	PJMEDIA_AUD_DEV_LIST_DID_REFRESH
	ctypedef void (*pjmedia_aud_dev_observer_callback)(pjmedia_aud_dev_event event)
	int pjmedia_aud_dev_set_observer_cb(pjmedia_aud_dev_observer_callback cb) nogil
	int pjmedia_aud_dev_default_param(int index, pjmedia_aud_param *param) nogil
	int pjmedia_aud_dev_refresh() nogil

	# sound port
	struct pjmedia_port
	struct pjmedia_snd_port
	struct pjmedia_snd_port_param:
	pjmedia_aud_param base
	ctypedef pjmedia_snd_port_param pjmedia_snd_port_param_ptr_const "const pjmedia_snd_port_param "
	int pjmedia_snd_port_create2(pj_pool_t pool, pjmedia_snd_port_param_ptr_const prm, pjmedia_snd_port *p_port) nogil
	void pjmedia_snd_port_param_default(pjmedia_snd_port_param *prm)
	int pjmedia_snd_port_connect(pjmedia_snd_port snd_port, pjmedia_port port) nogil
	int pjmedia_snd_port_disconnect(pjmedia_snd_port *snd_port) nogil
	int pjmedia_snd_port_set_ec(pjmedia_snd_port snd_port, pj_pool_t pool, unsigned int tail_ms, int options) nogil
	int pjmedia_snd_port_reset_ec_state(pjmedia_snd_port *snd_port) nogil
	int pjmedia_snd_port_destroy(pjmedia_snd_port *snd_port) nogil
	pjmedia_aud_stream pjmedia_snd_port_get_snd_stream(pjmedia_snd_port snd_port) nogil
	int pjmedia_null_port_create(pj_pool_t *pool, unsigned int sampling_rate, unsigned int channel_count,
	unsigned int samples_per_frame, unsigned int bits_per_sample, pjmedia_port **p_port) nogil
	int pjmedia_mixer_port_create(pj_pool_t *pool, unsigned int sampling_rate, unsigned int channel_count,
	unsigned int samples_per_frame, unsigned int bits_per_sample, pjmedia_port **p_port) nogil

	# master port
	struct pjmedia_master_port
	int pjmedia_master_port_create(pj_pool_t pool, pjmedia_port u_port, pjmedia_port *d_port,
	unsigned int options, pjmedia_master_port **p_m) nogil
	int pjmedia_master_port_start(pjmedia_master_port *m) nogil
	int pjmedia_master_port_destroy(pjmedia_master_port *m, int destroy_ports) nogil

	# conference bridge
	enum pjmedia_conf_option:
	PJMEDIA_CONF_NO_DEVICE
	struct pjmedia_conf
	int pjmedia_conf_create(pj_pool_t *pool, int max_slots, int sampling_rate, int channel_count,
	int samples_per_frame, int bits_per_sample, int options, pjmedia_conf **p_conf) nogil
	int pjmedia_conf_destroy(pjmedia_conf *conf) nogil
	pjmedia_port pjmedia_conf_get_master_port(pjmedia_conf conf) nogil
	int pjmedia_conf_add_port(pjmedia_conf conf, pj_pool_t pool, pjmedia_port *strm_port,
	pj_str_t name, unsigned int p_slot) nogil
	int pjmedia_conf_remove_port(pjmedia_conf *conf, unsigned int slot) nogil
	int pjmedia_conf_connect_port(pjmedia_conf *conf, unsigned int src_slot, unsigned int sink_slot, int level) nogil
	int pjmedia_conf_disconnect_port(pjmedia_conf *conf, unsigned int src_slot, unsigned int sink_slot) nogil
	int pjmedia_conf_adjust_rx_level(pjmedia_conf *conf, unsigned slot, int adj_level) nogil
	int pjmedia_conf_adjust_tx_level(pjmedia_conf *conf, unsigned slot, int adj_level) nogil

	# sdp
	enum:
	PJMEDIA_MAX_SDP_FMT
	enum:
	PJMEDIA_MAX_SDP_ATTR
	enum:
	PJMEDIA_MAX_SDP_MEDIA
	struct pjmedia_sdp_attr:
	pj_str_t name
	pj_str_t value
	struct pjmedia_sdp_conn:
	pj_str_t net_type
	pj_str_t addr_type
	pj_str_t addr
	struct pjmedia_sdp_media_desc:
	pj_str_t media
	unsigned int port
	unsigned int port_count
	pj_str_t transport
	unsigned int fmt_count
	pj_str_t fmt[PJMEDIA_MAX_SDP_FMT]
	struct pjmedia_sdp_media:
	pjmedia_sdp_media_desc desc
	pjmedia_sdp_conn *conn
	unsigned int attr_count
	pjmedia_sdp_attr *attr[PJMEDIA_MAX_SDP_ATTR]
	struct pjmedia_sdp_session_origin:
	pj_str_t user
	unsigned int id
	unsigned int version
	pj_str_t net_type
	pj_str_t addr_type
	pj_str_t addr
	struct pjmedia_sdp_session_time:
	unsigned int start
	unsigned int stop
	struct pjmedia_sdp_session:
	pjmedia_sdp_session_origin origin
	pj_str_t name
	pjmedia_sdp_conn *conn
	pjmedia_sdp_session_time time
	unsigned int attr_count
	pjmedia_sdp_attr *attr[PJMEDIA_MAX_SDP_ATTR]
	unsigned int media_count
	pjmedia_sdp_media *media[PJMEDIA_MAX_SDP_MEDIA]
	ctypedef pjmedia_sdp_session pjmedia_sdp_session_ptr_const "const pjmedia_sdp_session "
	pjmedia_sdp_media pjmedia_sdp_media_clone(pj_pool_t pool, pjmedia_sdp_media *rhs) nogil
	pjmedia_sdp_session pjmedia_sdp_session_clone(pj_pool_t pool, pjmedia_sdp_session_ptr_const sdp) nogil
	int pjmedia_sdp_print(pjmedia_sdp_session_ptr_const sdp, char *buf, int length)
	int pjmedia_sdp_parse(pj_pool_t pool, char buf, int length, pjmedia_sdp_session **p_sdp) nogil

	# sdp negotiation

	enum pjmedia_sdp_neg_state:
	PJMEDIA_SDP_NEG_STATE_NULL
	PJMEDIA_SDP_NEG_STATE_LOCAL_OFFER
	PJMEDIA_SDP_NEG_STATE_REMOTE_OFFER
	PJMEDIA_SDP_NEG_STATE_WAIT_NEGO
	PJMEDIA_SDP_NEG_STATE_DONE
	struct pjmedia_sdp_neg
	int pjmedia_sdp_neg_create_w_local_offer(pj_pool_t pool, pjmedia_sdp_session_ptr_const local, pjmedia_sdp_neg *neg) nogil
	int pjmedia_sdp_neg_create_w_remote_offer(pj_pool_t pool, pjmedia_sdp_session_ptr_const initial, pjmedia_sdp_session_ptr_const remote, pjmedia_sdp_neg *neg) nogil
	int pjmedia_sdp_neg_set_local_answer(pj_pool_t pool, pjmedia_sdp_neg neg, pjmedia_sdp_session_ptr_const local) nogil
	int pjmedia_sdp_neg_set_remote_answer(pj_pool_t pool, pjmedia_sdp_neg neg, pjmedia_sdp_session_ptr_const remote) nogil
	int pjmedia_sdp_neg_set_remote_offer(pj_pool_t pool, pjmedia_sdp_neg neg, pjmedia_sdp_session_ptr_const remote) nogil
	int pjmedia_sdp_neg_get_neg_remote(pjmedia_sdp_neg neg, pjmedia_sdp_session_ptr_const remote) nogil
	int pjmedia_sdp_neg_get_neg_local(pjmedia_sdp_neg neg, pjmedia_sdp_session_ptr_const local) nogil
	int pjmedia_sdp_neg_get_active_remote(pjmedia_sdp_neg neg, pjmedia_sdp_session_ptr_const remote) nogil
	int pjmedia_sdp_neg_get_active_local(pjmedia_sdp_neg neg, pjmedia_sdp_session_ptr_const local) nogil
	int pjmedia_sdp_neg_modify_local_offer (pj_pool_t pool, pjmedia_sdp_neg neg, pjmedia_sdp_session_ptr_const local) nogil
	int pjmedia_sdp_neg_cancel_offer(pjmedia_sdp_neg *neg) nogil
	int pjmedia_sdp_neg_negotiate(pj_pool_t poll, pjmedia_sdp_neg neg, int allow_asym) nogil
	pjmedia_sdp_neg_state pjmedia_sdp_neg_get_state(pjmedia_sdp_neg *neg) nogil
	char *pjmedia_sdp_neg_state_str(pjmedia_sdp_neg_state state) nogil

	# transport
	enum pjmedia_transport_type:
	PJMEDIA_TRANSPORT_TYPE_ICE
	PJMEDIA_TRANSPORT_TYPE_SRTP
	struct pjmedia_sock_info:
	pj_sockaddr rtp_addr_name
	struct pjmedia_transport:
	char *name
	pjmedia_transport_type type
	struct pjmedia_transport_specific_info:
	pjmedia_transport_type type
	char *buffer
	struct pjmedia_transport_info:
	pjmedia_sock_info sock_info
	pj_sockaddr src_rtp_name
	int specific_info_cnt
	pjmedia_transport_specific_info *spc_info
	struct pjmedia_srtp_info:
	int active
	void pjmedia_transport_info_init(pjmedia_transport_info *info) nogil
	int pjmedia_transport_udp_create3(pjmedia_endpt endpt, int af, char name, pj_str_t *addr, int port,
	unsigned int options, pjmedia_transport **p_tp) nogil
	int pjmedia_transport_get_info(pjmedia_transport tp, pjmedia_transport_info info) nogil
	int pjmedia_transport_close(pjmedia_transport *tp) nogil
	int pjmedia_transport_media_create(pjmedia_transport tp, pj_pool_t sdp_pool, unsigned int options,
	pjmedia_sdp_session *rem_sdp, unsigned int media_index) nogil
	int pjmedia_transport_encode_sdp(pjmedia_transport tp, pj_pool_t sdp_pool, pjmedia_sdp_session *sdp,
	pjmedia_sdp_session *rem_sdp, unsigned int media_index) nogil
	int pjmedia_transport_media_start(pjmedia_transport tp, pj_pool_t tmp_pool, pjmedia_sdp_session *sdp_local,
	pjmedia_sdp_session *sdp_remote, unsigned int media_index) nogil
	int pjmedia_transport_media_stop(pjmedia_transport *tp) nogil
	int pjmedia_endpt_create_sdp(pjmedia_endpt endpt, pj_pool_t pool, unsigned int stream_cnt,
	pjmedia_sock_info sock_info, pjmedia_sdp_session *p_sdp) nogil

	# SRTP
	enum pjmedia_srtp_use:
	PJMEDIA_SRTP_MANDATORY
	struct pjmedia_srtp_setting:
	pjmedia_srtp_use use
	void pjmedia_srtp_setting_default(pjmedia_srtp_setting *opt) nogil
	int pjmedia_transport_srtp_create(pjmedia_endpt endpt, pjmedia_transport tp,
	pjmedia_srtp_setting opt, pjmedia_transport *p_tp) nogil

	# ICE
	struct pjmedia_ice_cb:
	void on_ice_complete(pjmedia_transport *tp, pj_ice_strans_op op, int status) with gil
	void on_ice_state(pjmedia_transport *tp, pj_ice_strans_state prev, pj_ice_strans_state curr) with gil
	void on_ice_stop(pjmedia_transport tp, char reason, int err) with gil
	int pjmedia_ice_create2(pjmedia_endpt endpt, char name, unsigned int comp_cnt, pj_ice_strans_cfg *cfg,
	pjmedia_ice_cb cb, unsigned int options, pjmedia_transport *p_tp) nogil
	pj_ice_strans pjmedia_ice_get_strans(pjmedia_transport tp) with gil

	# stream
	enum pjmedia_dir:
	PJMEDIA_DIR_ENCODING
	PJMEDIA_DIR_DECODING
	struct pjmedia_codec_param_setting:
	unsigned int vad
	struct pjmedia_codec_param:
	pjmedia_codec_param_setting setting
	struct pjmedia_stream_info:
	pjmedia_codec_info fmt
	pjmedia_codec_param *param
	unsigned int tx_event_pt

	struct pjmedia_rtcp_stream_stat_loss_type:
	unsigned int burst
	unsigned int random
	struct pjmedia_rtcp_stream_stat:
	unsigned int pkt
	unsigned int bytes
	unsigned int discard
	unsigned int loss
	unsigned int reorder
	unsigned int dup
	pj_math_stat loss_period
	pjmedia_rtcp_stream_stat_loss_type loss_type
	pj_math_stat jitter
	struct pjmedia_rtcp_stat:
	pjmedia_rtcp_stream_stat tx
	pjmedia_rtcp_stream_stat rx
	pj_math_stat rtt
	struct pjmedia_stream
	int pjmedia_stream_info_from_sdp(pjmedia_stream_info si, pj_pool_t pool, pjmedia_endpt *endpt,
	pjmedia_sdp_session local, pjmedia_sdp_session remote, unsigned int stream_idx) nogil
	int pjmedia_stream_create(pjmedia_endpt endpt, pj_pool_t pool, pjmedia_stream_info *info,
	pjmedia_transport tp, void user_data, pjmedia_stream **p_stream) nogil
	int pjmedia_stream_destroy(pjmedia_stream *stream) nogil
	int pjmedia_stream_get_port(pjmedia_stream stream, pjmedia_port *p_port) nogil
	int pjmedia_stream_start(pjmedia_stream *stream) nogil
	int pjmedia_stream_dial_dtmf(pjmedia_stream stream, pj_str_t ascii_digit) nogil
	int pjmedia_stream_set_dtmf_callback(pjmedia_stream *stream,
	void cb(pjmedia_stream stream, void user_data, int digit) with gil,
	void *user_data) nogil
	int pjmedia_stream_pause(pjmedia_stream *stream, pjmedia_dir dir) nogil
	int pjmedia_stream_resume(pjmedia_stream *stream, pjmedia_dir dir) nogil
	int pjmedia_stream_get_stat(pjmedia_stream stream, pjmedia_rtcp_stat stat) nogil

	# wav player
	enum:
	PJMEDIA_FILE_NO_LOOP
	int pjmedia_port_destroy(pjmedia_port *port) nogil
	int pjmedia_wav_player_port_create(pj_pool_t pool, char filename, unsigned int ptime, unsigned int flags,
	unsigned int buff_size, pjmedia_port **p_port) nogil
	int pjmedia_wav_player_set_eof_cb(pjmedia_port port, void user_data,
	int cb(pjmedia_port port, void usr_data) with gil) nogil
	int pjmedia_wav_player_port_set_pos(pjmedia_port *port, unsigned int offset) nogil

	# wav recorder
	enum pjmedia_file_writer_option:
	PJMEDIA_FILE_WRITE_PCM
	int pjmedia_wav_writer_port_create(pj_pool_t pool, char filename, unsigned int clock_rate,
	unsigned int channel_count, unsigned int samples_per_frame,
	unsigned int bits_per_sample, unsigned int flags, int buff_size,
	pjmedia_port **p_port) nogil

	# tone generator
	enum:
	PJMEDIA_TONEGEN_MAX_DIGITS
	struct pjmedia_tone_desc:
	short freq1
	short freq2
	short on_msec
	short off_msec
	short volume
	short flags
	struct pjmedia_tone_digit:
	char digit
	short on_msec
	short off_msec
	short volume
	int pjmedia_tonegen_create(pj_pool_t *pool, unsigned int clock_rate, unsigned int channel_count,
	unsigned int samples_per_frame, unsigned int bits_per_sample,
	unsigned int options, pjmedia_port **p_port) nogil
	int pjmedia_tonegen_play(pjmedia_port tonegen, unsigned int count, pjmedia_tone_desc tones, unsigned int options) nogil
	int pjmedia_tonegen_play_digits(pjmedia_port *tonegen, unsigned int count,
	pjmedia_tone_digit *digits, unsigned int options) nogil
	int pjmedia_tonegen_stop(pjmedia_port *tonegen) nogil
	int pjmedia_tonegen_is_busy(pjmedia_port *tonegen) nogil

	cdef extern from "pjmedia-codec.h":

	# codecs
	enum:
	PJMEDIA_SPEEX_NO_NB
	int pjmedia_codec_gsm_init(pjmedia_endpt *endpt) nogil
	int pjmedia_codec_gsm_deinit() nogil
	int pjmedia_codec_g722_init(pjmedia_endpt *endpt) nogil
	int pjmedia_codec_g722_deinit() nogil
	int pjmedia_codec_opus_init(pjmedia_endpt *endpt) nogil
	int pjmedia_codec_opus_deinit() nogil
	int pjmedia_codec_ilbc_init(pjmedia_endpt *endpt, int mode) nogil
	int pjmedia_codec_ilbc_deinit() nogil
	int pjmedia_codec_speex_init(pjmedia_endpt *endpt, int options, int quality, int complexity) nogil
	int pjmedia_codec_speex_deinit() nogil

	cdef extern from "pjsip.h":

	# messages
	enum pjsip_status_code:
	PJSIP_SC_TSX_TIMEOUT
	PJSIP_SC_TSX_TRANSPORT_ERROR
	PJSIP_TLS_EUNKNOWN
	PJSIP_TLS_EINVMETHOD
	PJSIP_TLS_ECACERT
	PJSIP_TLS_ECERTFILE
	PJSIP_TLS_EKEYFILE
	PJSIP_TLS_ECIPHER
	PJSIP_TLS_ECTX
	struct pjsip_transport
	enum pjsip_uri_context_e:
	PJSIP_URI_IN_CONTACT_HDR
	struct pjsip_param:
	pj_str_t name
	pj_str_t value
	struct pjsip_uri
	struct pjsip_sip_uri:
	pj_str_t user
	pj_str_t passwd
	pj_str_t host
	int port
	pj_str_t user_param
	pj_str_t method_param
	pj_str_t transport_param
	int ttl_param
	int lr_param
	pj_str_t maddr_param
	pjsip_param other_param
	pjsip_param header_param
	struct pjsip_name_addr:
	pj_str_t display
	pjsip_uri *uri
	struct pjsip_media_type:
	pj_str_t type
	pj_str_t subtype
	pjsip_param param
	enum pjsip_method_e:
	PJSIP_OPTIONS_METHOD
	PJSIP_CANCEL_METHOD
	PJSIP_OTHER_METHOD
	struct pjsip_method:
	pjsip_method_e id
	pj_str_t name
	struct pjsip_host_port:
	pj_str_t host
	int port
	enum pjsip_hdr_e:
	PJSIP_H_VIA
	PJSIP_H_CALL_ID
	PJSIP_H_CONTACT
	PJSIP_H_CSEQ
	PJSIP_H_EXPIRES
	PJSIP_H_FROM
	struct pjsip_hdr:
	pjsip_hdr_e type
	pj_str_t name
	ctypedef pjsip_hdr pjsip_hdr_ptr_const "const pjsip_hdr"
	struct pjsip_generic_array_hdr:
	unsigned int count
	pj_str_t *values
	struct pjsip_generic_string_hdr:
	pj_str_t name
	pj_str_t hvalue
	struct pjsip_cid_hdr:
	pj_str_t id
	struct pjsip_contact_hdr:
	int star
	pjsip_uri *uri
	int q1000
	int expires
	pjsip_param other_param
	struct pjsip_clen_hdr:
	int len
	struct pjsip_ctype_hdr:
	pjsip_media_type media
	struct pjsip_cseq_hdr:
	int cseq
	pjsip_method method
	struct pjsip_generic_int_hdr:
	int ivalue
	ctypedef pjsip_generic_int_hdr pjsip_expires_hdr
	struct pjsip_fromto_hdr:
	pjsip_uri *uri
	pj_str_t tag
	pjsip_param other_param
	struct pjsip_routing_hdr:
	pjsip_name_addr name_addr
	pjsip_param other_param
	ctypedef pjsip_routing_hdr pjsip_route_hdr
	struct pjsip_retry_after_hdr:
	int ivalue
	pjsip_param param
	pj_str_t comment
	struct pjsip_via_hdr:
	pj_str_t transport
	pjsip_host_port sent_by
	int ttl_param
	int rport_param
	pj_str_t maddr_param
	pj_str_t recvd_param
	pj_str_t branch_param
	pjsip_param other_param
	pj_str_t comment
	enum:
	PJSIP_MAX_ACCEPT_COUNT
	struct pjsip_msg_body:
	pjsip_media_type content_type
	struct pjsip_request_line:
	pjsip_method method
	pjsip_uri *uri
	struct pjsip_status_line:
	int code
	pj_str_t reason
	union pjsip_msg_line:
	pjsip_request_line req
	pjsip_status_line status
	enum pjsip_msg_type_e:
	PJSIP_REQUEST_MSG
	PJSIP_RESPONSE_MSG
	struct pjsip_msg:
	pjsip_msg_type_e type
	pjsip_msg_line line
	pjsip_hdr hdr
	pjsip_msg_body *body
	struct pjsip_buffer:
	char *start
	char *cur
	struct pjsip_tx_data_tp_info:
	char *dst_name
	int dst_port
	pjsip_transport *transport
	struct pjsip_tx_data:
	pjsip_msg *msg
	pj_pool_t *pool
	pjsip_buffer buf
	pjsip_tx_data_tp_info tp_info
	struct pjsip_rx_data_tp_info:
	pj_pool_t *pool
	pjsip_transport *transport
	struct pjsip_rx_data_pkt_info:
	pj_time_val timestamp
	char *packet
	int len
	char *src_name
	int src_port
	struct pjsip_rx_data_msg_info:
	pjsip_msg *msg
	pjsip_fromto_hdr *from_hdr "from"
	pjsip_fromto_hdr *to_hdr "to"
	pjsip_via_hdr *via
	struct pjsip_rx_data:
	pjsip_rx_data_pkt_info pkt_info
	pjsip_rx_data_tp_info tp_info
	pjsip_rx_data_msg_info msg_info
	void pjsip_hdr_clone(pj_pool_t pool, void *hdr) nogil
	void pjsip_msg_add_hdr(pjsip_msg msg, pjsip_hdr hdr) nogil
	void pjsip_msg_find_hdr(pjsip_msg msg, pjsip_hdr_e type, void *start) nogil
	void pjsip_msg_find_hdr_by_name(pjsip_msg msg, pj_str_t name, void start) nogil
	void pjsip_msg_find_remove_hdr_by_name(pjsip_msg msg, pj_str_t name, void start) nogil
	pjsip_generic_string_hdr pjsip_generic_string_hdr_create(pj_pool_t pool, pj_str_t hname, pj_str_t hvalue) nogil
	pjsip_contact_hdr pjsip_contact_hdr_create(pj_pool_t pool) nogil
	pjsip_expires_hdr pjsip_expires_hdr_create(pj_pool_t pool, int value) nogil
	pjsip_msg_body pjsip_msg_body_create(pj_pool_t pool, pj_str_t type, pj_str_t subtype, pj_str_t *text) nogil
	pjsip_route_hdr pjsip_route_hdr_init(pj_pool_t pool, void *mem) nogil
	void pjsip_sip_uri_init(pjsip_sip_uri *url, int secure) nogil
	int pjsip_tx_data_dec_ref(pjsip_tx_data *tdata) nogil
	void pjsip_tx_data_add_ref(pjsip_tx_data *tdata) nogil
	pj_str_t pjsip_uri_get_scheme(pjsip_uri uri) nogil
	void pjsip_uri_get_uri(pjsip_uri uri) nogil
	int pjsip_uri_print(pjsip_uri_context_e context, void uri, char buf, unsigned int size) nogil
	int PJSIP_URI_SCHEME_IS_SIP(pjsip_sip_uri *uri) nogil
	enum:
	PJSIP_PARSE_URI_AS_NAMEADDR
	pjsip_uri pjsip_parse_uri(pj_pool_t pool, char *buf, unsigned int size, unsigned int options) nogil
	void pjsip_method_init_np(pjsip_method m, pj_str_t str) nogil
	pj_str_t *pjsip_get_status_text(int status_code) nogil
	int pjsip_print_body(pjsip_msg_body msg_body, char buf, int len)

	# module
	enum pjsip_module_priority:
	PJSIP_MOD_PRIORITY_APPLICATION
	PJSIP_MOD_PRIORITY_DIALOG_USAGE
	PJSIP_MOD_PRIORITY_TRANSPORT_LAYER
	struct pjsip_event
	struct pjsip_transaction
	struct pjsip_module:
	pj_str_t name
	int id
	int priority
	int on_rx_request(pjsip_rx_data *rdata) with gil
	int on_rx_response(pjsip_rx_data *rdata) with gil
	int on_tx_request(pjsip_tx_data *tdata) with gil
	int on_tx_response(pjsip_tx_data *tdata) with gil
	void on_tsx_state(pjsip_transaction tsx, pjsip_event event) with gil

	# endpoint
	struct pjsip_endpoint
	int pjsip_endpt_create(pj_pool_factory pf, char name, pjsip_endpoint **endpt) nogil
	void pjsip_endpt_destroy(pjsip_endpoint *endpt) nogil
	pj_pool_t pjsip_endpt_create_pool(pjsip_endpoint endpt, char *pool_name, int initial, int increment) nogil
	void pjsip_endpt_release_pool(pjsip_endpoint endpt, pj_pool_t pool) nogil
	int pjsip_endpt_handle_events(pjsip_endpoint endpt, pj_time_val max_timeout) nogil
	int pjsip_endpt_register_module(pjsip_endpoint endpt, pjsip_module module) nogil
	int pjsip_endpt_schedule_timer(pjsip_endpoint endpt, pj_timer_entry entry, pj_time_val *delay) nogil
	void pjsip_endpt_cancel_timer(pjsip_endpoint endpt, pj_timer_entry entry) nogil
	enum:
	PJSIP_H_ACCEPT
	PJSIP_H_ALLOW
	PJSIP_H_SUPPORTED
	pjsip_hdr_ptr_const pjsip_endpt_get_capability(pjsip_endpoint endpt, int htype, pj_str_t hname) nogil
	int pjsip_endpt_add_capability(pjsip_endpoint endpt, pjsip_module mod, int htype,
	pj_str_t hname, unsigned count, pj_str_t tags) nogil
	int pjsip_endpt_create_response(pjsip_endpoint endpt, pjsip_rx_data rdata,
	int st_code, pj_str_t st_text, pjsip_tx_data *p_tdata) nogil
	int pjsip_endpt_send_response2(pjsip_endpoint endpt, pjsip_rx_data rdata,
	pjsip_tx_data tdata, void token, void *cb) nogil
	int pjsip_endpt_respond_stateless(pjsip_endpoint endpt, pjsip_rx_data rdata,
	int st_code, pj_str_t st_text, pjsip_hdr hdr_list, pjsip_msg_body *body) nogil
	int pjsip_endpt_create_request(pjsip_endpoint endpt, pjsip_method method, pj_str_t target, pj_str_t frm,
	pj_str_t to, pj_str_t contact, pj_str_t *call_id,
	int cseq,pj_str_t text, pjsip_tx_data *p_tdata) nogil
	pj_timer_heap_t pjsip_endpt_get_timer_heap(pjsip_endpoint endpt) nogil
	int pjsip_endpt_create_resolver(pjsip_endpoint endpt, pj_dns_resolver *p_resv) nogil
	int pjsip_endpt_set_resolver(pjsip_endpoint endpt, pj_dns_resolver resv) nogil
	pj_dns_resolver* pjsip_endpt_get_resolver(pjsip_endpoint *endpt) nogil

	# transports
	enum pjsip_ssl_method:
	PJSIP_TLSV1_METHOD
	struct pjsip_transport:
	char *type_name
	pjsip_host_port local_name
	struct pjsip_tpfactory:
	pjsip_host_port addr_name
	int destroy(pjsip_tpfactory *factory) nogil
	struct pjsip_tls_setting:
	pj_str_t ca_list_file
	pj_str_t cert_file
	pj_str_t privkey_file
	int method
	int verify_server
	pj_time_val timeout
	enum pjsip_tpselector_type:
	PJSIP_TPSELECTOR_TRANSPORT
	union pjsip_tpselector_u:
	pjsip_transport *transport
	struct pjsip_tpselector:
	pjsip_tpselector_type type
	pjsip_tpselector_u u
	int pjsip_transport_shutdown(pjsip_transport *tp) nogil
	int pjsip_udp_transport_start(pjsip_endpoint endpt, pj_sockaddr_in local, pjsip_host_port *a_name,
	unsigned int async_cnt, pjsip_transport **p_transport) nogil
	int pjsip_tcp_transport_start2(pjsip_endpoint endpt, pj_sockaddr_in local, pjsip_host_port *a_name,
	unsigned int async_cnt, pjsip_tpfactory **p_tpfactory) nogil
	int pjsip_tls_transport_start(pjsip_endpoint endpt, pjsip_tls_setting opt, pj_sockaddr_in *local,
	pjsip_host_port a_name, unsigned async_cnt, pjsip_tpfactory *p_factory) nogil
	void pjsip_tls_setting_default(pjsip_tls_setting *tls_opt) nogil
	int pjsip_transport_shutdown(pjsip_transport *tp) nogil

	# transaction layer
	enum pjsip_role_e:
	PJSIP_ROLE_UAC
	PJSIP_ROLE_UAS
	enum pjsip_tsx_state_e:
	PJSIP_TSX_STATE_TRYING
	PJSIP_TSX_STATE_PROCEEDING
	PJSIP_TSX_STATE_COMPLETED
	PJSIP_TSX_STATE_TERMINATED
	struct pjsip_transaction:
	int status_code
	pj_str_t status_text
	pjsip_role_e role
	pjsip_tx_data *last_tx
	pjsip_tsx_state_e state
	void **mod_data
	pjsip_method method
	int pjsip_tsx_layer_init_module(pjsip_endpoint *endpt) nogil
	int pjsip_tsx_create_key(pj_pool_t pool, pj_str_t key, pjsip_role_e role,
	pjsip_method method, pjsip_rx_data rdata) nogil
	pjsip_transaction pjsip_tsx_layer_find_tsx(pj_str_t key, int lock) nogil
	int pjsip_tsx_create_uac(pjsip_module tsx_user, pjsip_tx_data tdata, pjsip_transaction **p_tsx) nogil
	int pjsip_tsx_terminate(pjsip_transaction *tsx, int code) nogil
	int pjsip_tsx_send_msg(pjsip_transaction tsx, pjsip_tx_data tdata) nogil
	pjsip_transaction pjsip_rdata_get_tsx(pjsip_rx_data rdata) nogil
	int pjsip_tsx_create_uas(pjsip_module tsx_user, pjsip_rx_data rdata, pjsip_transaction **p_tsx) nogil
	void pjsip_tsx_recv_msg(pjsip_transaction tsx, pjsip_rx_data rdata) nogil

	# event
	enum pjsip_event_id_e:
	PJSIP_EVENT_TSX_STATE
	PJSIP_EVENT_RX_MSG
	PJSIP_EVENT_TX_MSG
	PJSIP_EVENT_TRANSPORT_ERROR
	PJSIP_EVENT_TIMER
	union pjsip_event_body_tsx_state_src:
	pjsip_rx_data *rdata
	pjsip_tx_data *tdata
	struct pjsip_event_body_tsx_state:
	pjsip_event_body_tsx_state_src src
	pjsip_transaction *tsx
	pjsip_event_id_e type
	struct pjsip_event_body_rx_msg:
	pjsip_rx_data *rdata
	union pjsip_event_body:
	pjsip_event_body_tsx_state tsx_state
	pjsip_event_body_rx_msg rx_msg
	struct pjsip_event:
	pjsip_event_id_e type
	pjsip_event_body body
	int pjsip_endpt_send_request(pjsip_endpoint endpt, pjsip_tx_data tdata, int timeout,
	void token, void cb(void token, pjsip_event *e) with gil) nogil

	# auth
	enum:
	PJSIP_EFAILEDCREDENTIAL
	enum pjsip_cred_data_type:
	PJSIP_CRED_DATA_PLAIN_PASSWD
	struct pjsip_cred_info:
	pj_str_t realm
	pj_str_t scheme
	pj_str_t username
	pjsip_cred_data_type data_type
	pj_str_t data
	struct pjsip_auth_clt_sess:
	pass
	int pjsip_auth_clt_init(pjsip_auth_clt_sess sess, pjsip_endpoint endpt, pj_pool_t *pool, unsigned int options) nogil
	int pjsip_auth_clt_set_credentials(pjsip_auth_clt_sess sess, int cred_cnt, pjsip_cred_info c) nogil
	int pjsip_auth_clt_reinit_req(pjsip_auth_clt_sess sess, pjsip_rx_data rdata,
	pjsip_tx_data old_request, pjsip_tx_data *new_request) nogil

	# dialog layer
	ctypedef pjsip_module pjsip_user_agent
	struct pjsip_dlg_party:
	pjsip_contact_hdr *contact
	pjsip_fromto_hdr *info
	struct pjsip_dialog:
	pjsip_auth_clt_sess auth_sess
	pjsip_cid_hdr *call_id
	pj_pool_t *pool
	pjsip_dlg_party local
	pjsip_dlg_party remote
	struct pjsip_ua_init_param:
	pjsip_dialog on_dlg_forked(pjsip_dialog first_set, pjsip_rx_data *res) nogil
	int pjsip_ua_init_module(pjsip_endpoint endpt, pjsip_ua_init_param prm) nogil
	pjsip_user_agent *pjsip_ua_instance() nogil
	int pjsip_dlg_create_uac(pjsip_user_agent ua, pj_str_t local_uri, pj_str_t *local_contact,
	pj_str_t remote_uri, pj_str_t target, pjsip_dialog **p_dlg) nogil
	int pjsip_dlg_set_route_set(pjsip_dialog dlg, pjsip_route_hdr route_set) nogil
	int pjsip_dlg_create_uas(pjsip_user_agent ua, pjsip_rx_data rdata, pj_str_t contact, pjsip_dialog *p_dlg) nogil
	int pjsip_dlg_terminate(pjsip_dialog *dlg) nogil
	int pjsip_dlg_set_transport(pjsip_dialog dlg, pjsip_tpselector sel) nogil
	int pjsip_dlg_respond(pjsip_dialog dlg, pjsip_rx_data rdata, int st_code,
	pj_str_t st_text, pjsip_hdr hdr_list, pjsip_msg_body *body) nogil
	int pjsip_dlg_create_response(pjsip_dialog dlg, pjsip_rx_data rdata,
	int st_code, pj_str_t st_text, pjsip_tx_data *tdata) nogil
	int pjsip_dlg_modify_response(pjsip_dialog dlg, pjsip_tx_data tdata, int st_code, pj_str_t *st_text) nogil
	int pjsip_dlg_send_response(pjsip_dialog dlg, pjsip_transaction tsx, pjsip_tx_data *tdata) nogil
	void pjsip_dlg_inc_lock(pjsip_dialog *dlg) nogil
	void pjsip_dlg_dec_lock(pjsip_dialog *dlg) nogil
	int pjsip_dlg_inc_session(pjsip_dialog dlg, pjsip_module mod) nogil
	int pjsip_dlg_dec_session(pjsip_dialog dlg, pjsip_module mod) nogil

	cdef extern from "pjsip-simple/evsub_msg.h":
	struct pjsip_event_hdr:
	pj_str_t event_type
	pj_str_t id_param
	pjsip_param other_param
	struct pjsip_sub_state_hdr:
	pj_str_t sub_state
	pj_str_t reason_param
	int expires_param
	int retry_after
	pjsip_param other_param
	pjsip_event_hdr pjsip_event_hdr_create(pj_pool_t pool) nogil

	cdef extern from "pjsip_simple.h":

	# subscribe / notify
	enum:
	PJSIP_EVSUB_NO_EVENT_ID
	enum pjsip_evsub_state:
	PJSIP_EVSUB_STATE_PENDING
	PJSIP_EVSUB_STATE_ACTIVE
	PJSIP_EVSUB_STATE_TERMINATED
	struct pjsip_evsub
	struct pjsip_evsub_user:
	void on_evsub_state(pjsip_evsub sub, pjsip_event event) with gil
	void on_tsx_state(pjsip_evsub sub, pjsip_transaction tsx, pjsip_event *event) with gil
	void on_rx_refresh(pjsip_evsub sub, pjsip_rx_data rdata, int p_st_code, pj_str_t *p_st_text,
	pjsip_hdr res_hdr, pjsip_msg_body *p_body) with gil
	void on_rx_notify(pjsip_evsub sub, pjsip_rx_data rdata, int *p_st_code,
	pj_str_t *p_st_text,pjsip_hdr res_hdr, pjsip_msg_body **p_body) with gil
	void on_client_refresh(pjsip_evsub *sub) with gil
	void on_server_timeout(pjsip_evsub *sub) with gil
	int pjsip_evsub_init_module(pjsip_endpoint *endpt) nogil
	int pjsip_evsub_register_pkg(pjsip_module pkg_mod, pj_str_t event_name,
	unsigned int expires, unsigned int accept_cnt, pj_str_t *accept) nogil
	int pjsip_evsub_create_uac(pjsip_dialog dlg, pjsip_evsub_user user_cb,
	pj_str_t event, int option, pjsip_evsub *p_evsub) nogil
	int pjsip_evsub_create_uas(pjsip_dialog dlg, pjsip_evsub_user user_cb,
	pjsip_rx_data rdata, unsigned int option, pjsip_evsub *p_evsub) nogil
	int pjsip_evsub_initiate(pjsip_evsub sub, void method, unsigned int expires, pjsip_tx_data **p_tdata) nogil
	int pjsip_evsub_send_request(pjsip_evsub sub, pjsip_tx_data tdata) nogil
	int pjsip_evsub_terminate(pjsip_evsub *sub, int notify) nogil
	char pjsip_evsub_get_state_name(pjsip_evsub sub) nogil
	void pjsip_evsub_set_mod_data(pjsip_evsub sub, int mod_id, void data) nogil
	void pjsip_evsub_get_mod_data(pjsip_evsub sub, int mod_id) nogil
	void pjsip_evsub_update_expires(pjsip_evsub *sub, int interval) nogil
	void pjsip_evsub_set_timer(pjsip_evsub *sub, int timer_id, int seconds) nogil
	pjsip_hdr pjsip_evsub_get_allow_events_hdr(pjsip_module m) nogil
	int pjsip_evsub_notify(pjsip_evsub *sub, pjsip_evsub_state state,
	pj_str_t state_str, pj_str_t reason, pjsip_tx_data **p_tdata) nogil

	cdef extern from "pjsip_ua.h":

	# 100rel / PRACK
	int pjsip_100rel_init_module(pjsip_endpoint *endpt) nogil

	# invite sessions
	enum pjsip_inv_option:
	PJSIP_INV_SUPPORT_100REL
	enum pjsip_inv_state:
	PJSIP_INV_STATE_INCOMING
	PJSIP_INV_STATE_CONFIRMED
	struct pjsip_inv_session:
	pjsip_inv_state state
	void **mod_data
	pjmedia_sdp_neg *neg
	int cause
	pj_str_t cause_text
	int cancelling
	pjsip_transaction *invite_tsx
	struct pjsip_inv_callback:
	void on_state_changed(pjsip_inv_session inv, pjsip_event e) with gil
	void on_new_session(pjsip_inv_session inv, pjsip_event e) with gil
	void on_tsx_state_changed(pjsip_inv_session inv, pjsip_transaction tsx, pjsip_event *e) with gil
	void on_media_update(pjsip_inv_session *inv, int status) with gil
	int on_rx_reinvite(pjsip_inv_session inv, pjmedia_sdp_session_ptr_const offer, pjsip_rx_data rdata) with gil
	int pjsip_inv_usage_init(pjsip_endpoint endpt, pjsip_inv_callback cb) nogil
	int pjsip_inv_terminate(pjsip_inv_session *inv, int st_code, int notify) nogil
	int pjsip_inv_end_session(pjsip_inv_session inv, int st_code, pj_str_t st_text, pjsip_tx_data **p_tdata) nogil
	int pjsip_inv_cancel_reinvite(pjsip_inv_session inv, pjsip_tx_data *p_tdata) nogil
	int pjsip_inv_send_msg(pjsip_inv_session inv, pjsip_tx_data tdata) nogil
	int pjsip_inv_verify_request(pjsip_rx_data rdata, unsigned int options, pjmedia_sdp_session *sdp,
	pjsip_dialog dlg, pjsip_endpoint endpt, pjsip_tx_data **tdata) nogil
	int pjsip_inv_create_uas(pjsip_dialog dlg, pjsip_rx_data rdata, pjmedia_sdp_session *local_sdp,
	unsigned int options, pjsip_inv_session **p_inv) nogil
	int pjsip_inv_initial_answer(pjsip_inv_session inv, pjsip_rx_data rdata, int st_code,
	pj_str_t st_text, pjmedia_sdp_session sdp, pjsip_tx_data **p_tdata) nogil
	int pjsip_inv_answer(pjsip_inv_session inv, int st_code, pj_str_t st_text,
	pjmedia_sdp_session local_sdp, pjsip_tx_data *p_tdata) nogil
	int pjsip_inv_create_uac(pjsip_dialog dlg, pjmedia_sdp_session local_sdp,
	unsigned int options, pjsip_inv_session **p_inv) nogil
	int pjsip_inv_invite(pjsip_inv_session inv, pjsip_tx_data *p_tdata) nogil
	char *pjsip_inv_state_name(pjsip_inv_state state) nogil
	int pjsip_inv_reinvite(pjsip_inv_session inv, pj_str_t new_contact,
	pjmedia_sdp_session new_offer, pjsip_tx_data *p_tdata) nogil
	int pjsip_create_sdp_body(pj_pool_t pool, pjmedia_sdp_session sdp, pjsip_msg_body **p_body) nogil

	# Replaces
	struct pjsip_replaces_hdr:
	pj_str_t call_id
	pj_str_t to_tag
	pj_str_t from_tag
	int early_only
	pjsip_param other_param
	pjsip_replaces_hdr pjsip_replaces_hdr_create(pj_pool_t pool) nogil
	int pjsip_replaces_verify_request(pjsip_rx_data rdata, pjsip_dialog p_dlg, int lock_dlg, pjsip_tx_data *p_tdata) nogil
	int pjsip_replaces_init_module(pjsip_endpoint *endpt) nogil


	# declarations

	# core.util

	cdef class frozenlist(object):
	# attributes
	cdef int initialized
	cdef list list
	cdef long hash

	cdef class frozendict(object):
	# attributes
	cdef int initialized
	cdef dict dict
	cdef long hash

	cdef class PJSTR(object):
	# attributes
	cdef pj_str_t pj_str
	cdef object str

	# core.lib

	cdef class PJLIB(object):
	# attributes
	cdef int _init_done

	cdef class PJCachingPool(object):
	# attributes
	cdef pj_caching_pool _obj
	cdef int _init_done

	cdef class PJSIPEndpoint(object):
	# attributes
	cdef pjsip_endpoint *_obj
	cdef pj_pool_t *_pool
	cdef pjsip_transport *_udp_transport
	cdef pjsip_tpfactory *_tcp_transport
	cdef pjsip_tpfactory *_tls_transport
	cdef int _tls_verify_server
	cdef PJSTR _tls_ca_file
	cdef PJSTR _tls_cert_file
	cdef PJSTR _tls_privkey_file
	cdef object _local_ip_used
	cdef int _tls_timeout

	# private methods
	cdef int _make_local_addr(self, pj_sockaddr_in *local_addr, object ip_address, int port) except -1
	cdef int _start_udp_transport(self, int port) except -1
	cdef int _stop_udp_transport(self) except -1
	cdef int _start_tcp_transport(self, int port) except -1
	cdef int _stop_tcp_transport(self) except -1
	cdef int _start_tls_transport(self, port) except -1
	cdef int _stop_tls_transport(self) except -1
	cdef int _set_dns_nameservers(self, list servers) except -1

	cdef class PJMEDIAEndpoint(object):
	# attributes
	cdef pjmedia_endpt *_obj
	cdef int _has_speex
	cdef int _has_g722
	cdef int _has_g711
	cdef int _has_ilbc
	cdef int _has_gsm
	cdef int _has_opus

	# private methods
	cdef list _get_codecs(self)
	cdef list _get_all_codecs(self)
	cdef list _get_current_codecs(self)
	cdef int _set_codecs(self, list req_codecs) except -1

	# core.helper

	cdef class BaseCredentials(object):
	# attributes
	cdef pjsip_cred_info _credentials

	# private methods
	cdef pjsip_cred_info* get_cred_info(self)

	cdef class Credentials(BaseCredentials):
	# attributes
	cdef str _username
	cdef str _realm
	cdef str _password

	cdef class FrozenCredentials(BaseCredentials):
	# attributes
	cdef int initialized
	cdef readonly str username
	cdef readonly str realm
	cdef readonly str password

	cdef class BaseSIPURI(object):
	pass

	cdef class SIPURI(BaseSIPURI):
	# attributes
	- cdef public str user
	- cdef public str password
	- cdef str _host
	+ cdef public object user
	+ cdef public object password
	+ cdef public object host
	+ cdef public bint secure
	+ cdef public dict parameters
	+ cdef public dict headers
	cdef object _port
	- cdef bint _secure
	- cdef dict _parameters
	- cdef dict _headers

	cdef class FrozenSIPURI(BaseSIPURI):
	# attributes
	cdef int initialized
	- cdef readonly str user
	- cdef readonly str password
	- cdef readonly str host
	+ cdef readonly object user
	+ cdef readonly object password
	+ cdef readonly object host
	cdef readonly object port
	cdef readonly bint secure
	cdef readonly frozendict parameters
	cdef readonly frozendict headers

	cdef SIPURI SIPURI_create(pjsip_sip_uri *base_uri)
	cdef FrozenSIPURI FrozenSIPURI_create(pjsip_sip_uri *base_uri)

	# core.headers

	cdef class BaseHeader(object):
	pass

	cdef class Header(BaseHeader):
	# attributes
	cdef str _name
	cdef str _body

	cdef class FrozenHeader(BaseHeader):
	# attributes
	cdef readonly str name
	cdef readonly str body

	cdef class BaseContactHeader(object):
	pass

	cdef class ContactHeader(BaseContactHeader):
	# attributes
	cdef SIPURI _uri
	cdef unicode _display_name
	cdef dict _parameters

	cdef class FrozenContactHeader(BaseContactHeader):
	# attributes
	cdef int initialized
	cdef readonly FrozenSIPURI uri
	cdef readonly unicode display_name
	cdef readonly frozendict parameters

	cdef class BaseContentTypeHeader(object):
	pass

	cdef class ContentTypeHeader(BaseContentTypeHeader):
	# attributes
	cdef str _content_type
	cdef dict _parameters

	cdef class FrozenContentTypeHeader(BaseContentTypeHeader):
	# attributes
	cdef int initialized
	cdef readonly str _content_type
	cdef readonly frozendict parameters

	cdef class BaseIdentityHeader(object):
	pass

	cdef class IdentityHeader(BaseIdentityHeader):
	# attributes
	cdef SIPURI _uri
	cdef public unicode display_name
	cdef dict _parameters

	cdef class FrozenIdentityHeader(BaseIdentityHeader):
	# attributes
	cdef int initialized
	cdef readonly FrozenSIPURI uri
	cdef readonly unicode display_name
	cdef readonly frozendict parameters

	cdef class FromHeader(IdentityHeader):
	pass

	cdef class FrozenFromHeader(FrozenIdentityHeader):
	pass

	cdef class ToHeader(IdentityHeader):
	pass

	cdef class FrozenToHeader(FrozenIdentityHeader):
	pass

	cdef class RouteHeader(IdentityHeader):
	pass

	cdef class FrozenRouteHeader(FrozenIdentityHeader):
	pass

	cdef class RecordRouteHeader(IdentityHeader):
	pass

	cdef class FrozenRecordRouteHeader(FrozenIdentityHeader):
	pass

	cdef class BaseRetryAfterHeader(object):
	pass

	cdef class RetryAfterHeader(BaseRetryAfterHeader):
	# attributes
	cdef public int seconds
	cdef public str comment
	cdef dict _parameters

	cdef class FrozenRetryAfterHeader(BaseRetryAfterHeader):
	# attributes
	cdef int initialized
	cdef readonly int seconds
	cdef readonly str comment
	cdef readonly frozendict parameters

	cdef class BaseViaHeader(object):
	pass

	cdef class ViaHeader(BaseViaHeader):
	# attributes
	cdef str _transport
	cdef str _host
	cdef int _port
	cdef dict _parameters

	cdef class FrozenViaHeader(BaseViaHeader):
	# attributes
	cdef int initialized
	cdef readonly str transport
	cdef readonly str host
	cdef readonly int port
	cdef readonly frozendict parameters

	cdef class BaseWarningHeader(object):
	pass

	cdef class WarningHeader(BaseWarningHeader):
	# attributes
	cdef int _code
	cdef str _agent
	cdef str _text

	cdef class FrozenWarningHeader(BaseWarningHeader):
	# attributes
	cdef int initialized
	cdef readonly int code
	cdef readonly str agent
	cdef readonly str text

	cdef class BaseEventHeader(object):
	pass

	cdef class EventHeader(BaseEventHeader):
	# attributes
	cdef public event
	cdef dict _parameters

	cdef class FrozenEventHeader(BaseEventHeader):
	# attributes
	cdef int initialized
	cdef readonly str event
	cdef readonly frozendict parameters

	cdef class BaseSubscriptionStateHeader(object):
	pass

	cdef class SubscriptionStateHeader(BaseSubscriptionStateHeader):
	# attributes
	cdef public state
	cdef dict _parameters

	cdef class FrozenSubscriptionStateHeader(BaseSubscriptionStateHeader):
	# attributes
	cdef int initialized
	cdef readonly str state
	cdef readonly frozendict parameters

	cdef class BaseReasonHeader(object):
	pass

	cdef class ReasonHeader(BaseReasonHeader):
	# attributes
	cdef public str protocol
	cdef public dict parameters

	cdef class FrozenReasonHeader(BaseReasonHeader):
	# attributes
	cdef int initialized
	cdef readonly str protocol
	cdef readonly frozendict parameters

	cdef class BaseReferToHeader(object):
	pass

	cdef class ReferToHeader(BaseReferToHeader):
	# attributes
	cdef public str uri
	cdef dict _parameters

	cdef class FrozenReferToHeader(BaseReferToHeader):
	# attributes
	cdef int initialized
	cdef readonly str uri
	cdef readonly frozendict parameters

	cdef class BaseSubjectHeader(object):
	pass

	cdef class SubjectHeader(BaseSubjectHeader):
	# attributes
	cdef public unicode subject

	cdef class FrozenSubjectHeader(BaseSubjectHeader):
	# attributes
	cdef int initialized
	cdef readonly unicode subject

	cdef class BaseReplacesHeader(object):
	pass

	cdef class ReplacesHeader(BaseReplacesHeader):
	# attributes
	cdef public str call_id
	cdef public str from_tag
	cdef public str to_tag
	cdef public int early_only
	cdef dict _parameters

	cdef class FrozenReplacesHeader(BaseReplacesHeader):
	# attributes
	cdef int initialized
	cdef readonly str call_id
	cdef readonly str from_tag
	cdef readonly str to_tag
	cdef readonly int early_only
	cdef readonly frozendict parameters

	cdef Header Header_create(pjsip_generic_string_hdr *header)
	cdef FrozenHeader FrozenHeader_create(pjsip_generic_string_hdr *header)
	cdef ContactHeader ContactHeader_create(pjsip_contact_hdr *header)
	cdef FrozenContactHeader FrozenContactHeader_create(pjsip_contact_hdr *header)
	cdef ContentTypeHeader ContentTypeHeader_create(pjsip_ctype_hdr *header)
	cdef FrozenContentTypeHeader FrozenContentTypeHeader_create(pjsip_ctype_hdr *header)
	cdef FromHeader FromHeader_create(pjsip_fromto_hdr *header)
	cdef FrozenFromHeader FrozenFromHeader_create(pjsip_fromto_hdr *header)
	cdef ToHeader ToHeader_create(pjsip_fromto_hdr *header)
	cdef FrozenToHeader FrozenToHeader_create(pjsip_fromto_hdr *header)
	cdef RouteHeader RouteHeader_create(pjsip_routing_hdr *header)
	cdef FrozenRouteHeader FrozenRouteHeader_create(pjsip_routing_hdr *header)
	cdef RecordRouteHeader RecordRouteHeader_create(pjsip_routing_hdr *header)
	cdef FrozenRecordRouteHeader FrozenRecordRouteHeader_create(pjsip_routing_hdr *header)
	cdef RetryAfterHeader RetryAfterHeader_create(pjsip_retry_after_hdr *header)
	cdef FrozenRetryAfterHeader FrozenRetryAfterHeader_create(pjsip_retry_after_hdr *header)
	cdef ViaHeader ViaHeader_create(pjsip_via_hdr *header)
	cdef FrozenViaHeader FrozenViaHeader_create(pjsip_via_hdr *header)
	cdef EventHeader EventHeader_create(pjsip_event_hdr *header)
	cdef FrozenEventHeader FrozenEventHeader_create(pjsip_event_hdr *header)
	cdef SubscriptionStateHeader SubscriptionStateHeader_create(pjsip_sub_state_hdr *header)
	cdef FrozenSubscriptionStateHeader FrozenSubscriptionStateHeader_create(pjsip_sub_state_hdr *header)
	cdef ReferToHeader ReferToHeader_create(pjsip_generic_string_hdr *header)
	cdef FrozenReferToHeader FrozenReferToHeader_create(pjsip_generic_string_hdr *header)
	cdef SubjectHeader SubjectHeader_create(pjsip_generic_string_hdr *header)
	cdef FrozenSubjectHeader FrozenSubjectHeader_create(pjsip_generic_string_hdr *header)
	cdef ReplacesHeader ReplacesHeader_create(pjsip_replaces_hdr *header)
	cdef FrozenReplacesHeader FrozenReplacesHeader_create(pjsip_replaces_hdr *header)

	# core.util

	cdef int _str_to_pj_str(object string, pj_str_t *pj_str) except -1
	cdef object _pj_str_to_str(pj_str_t pj_str)
	cdef object _pj_status_to_str(int status)
	cdef object _pj_status_to_def(int status)
	cdef dict _pjsip_param_to_dict(pjsip_param *param_list)
	cdef int _dict_to_pjsip_param(object params, pjsip_param param_list, pj_pool_t pool)
	cdef int _pjsip_msg_to_dict(pjsip_msg *msg, dict info_dict) except -1
	cdef int _is_valid_ip(int af, object ip) except -1
	cdef int _get_ip_version(object ip) except -1
	cdef int _add_headers_to_tdata(pjsip_tx_data *tdata, object headers) except -1
	cdef int _remove_headers_from_tdata(pjsip_tx_data *tdata, object headers) except -1
	cdef int _BaseSIPURI_to_pjsip_sip_uri(BaseSIPURI uri, pjsip_sip_uri pj_uri, pj_pool_t pool) except -1
	cdef int _BaseRouteHeader_to_pjsip_route_hdr(BaseIdentityHeader header, pjsip_route_hdr pj_header, pj_pool_t pool) except -1

	# core.ua

	ctypedef int (*timer_callback)(object, object) except -1 with gil
	cdef class Timer(object):
	# attributes
	cdef int _scheduled
	cdef double schedule_time
	cdef timer_callback callback
	cdef object obj

	# private methods
	cdef int schedule(self, float delay, timer_callback callback, object obj) except -1
	cdef int cancel(self) except -1
	cdef int call(self) except -1

	cdef class PJSIPThread(object):
	# attributes
	cdef pj_thread_t *_obj
	cdef long _thread_desc[PJ_THREAD_DESC_SIZE]

	cdef class PJSIPUA(object):
	# attributes
	cdef object _threads
	cdef object _event_handler
	cdef list _timers
	cdef PJLIB _pjlib
	cdef PJCachingPool _caching_pool
	cdef PJSIPEndpoint _pjsip_endpoint
	cdef PJMEDIAEndpoint _pjmedia_endpoint
	cdef pjsip_module _module
	cdef PJSTR _module_name
	cdef pjsip_module _trace_module
	cdef PJSTR _trace_module_name
	cdef pjsip_module _ua_tag_module
	cdef PJSTR _ua_tag_module_name
	cdef pjsip_module _event_module
	cdef PJSTR _event_module_name
	cdef int _trace_sip
	cdef int _detect_sip_loops
	cdef PJSTR _user_agent
	cdef object _events
	cdef object _sent_messages
	cdef int _rtp_port_start
	cdef int _rtp_port_count
	cdef int _rtp_port_usable_count
	cdef int _rtp_port_index
	cdef pj_stun_config _stun_cfg
	cdef int _fatal_error
	cdef set _incoming_events
	cdef set _incoming_requests
	cdef pj_rwmutex_t *audio_change_rwlock
	cdef list old_devices

	# private methods
	cdef object _get_sound_devices(self, int is_output)
	cdef object _get_default_sound_device(self, int is_output)
	cdef int _poll_log(self) except -1
	cdef int _handle_exception(self, int is_fatal) except -1
	cdef int _check_self(self) except -1
	cdef int _check_thread(self) except -1
	cdef int _add_timer(self, Timer timer) except -1
	cdef int _remove_timer(self, Timer timer) except -1
	cdef int _cb_rx_request(self, pjsip_rx_data *rdata) except 0

	cdef pj_pool_t* create_memory_pool(self, bytes name, int initial_size, int resize_size)
	cdef void release_memory_pool(self, pj_pool_t* pool)
	cdef void reset_memory_pool(self, pj_pool_t* pool)

	cdef int _PJSIPUA_cb_rx_request(pjsip_rx_data *rdata) with gil
	cdef void _cb_detect_nat_type(void *user_data, pj_stun_nat_detect_result_ptr_const res) with gil
	cdef int _cb_trace_rx(pjsip_rx_data *rdata) with gil
	cdef int _cb_trace_tx(pjsip_tx_data *tdata) with gil
	cdef int _cb_add_user_agent_hdr(pjsip_tx_data *tdata) with gil
	cdef int _cb_add_server_hdr(pjsip_tx_data *tdata) with gil
	cdef PJSIPUA _get_ua()
	cdef int deallocate_weakref(object weak_ref, object timer) except -1 with gil

	# core.sound

	cdef class AudioMixer(object):
	# attributes
	cdef int _input_volume
	cdef int _output_volume
	cdef bint _muted
	cdef pj_mutex_t *_lock
	cdef pj_pool_t *_conf_pool
	cdef pj_pool_t *_snd_pool
	cdef pjmedia_conf *_obj
	cdef pjmedia_master_port *_master_port
	cdef pjmedia_port *_null_port
	cdef pjmedia_snd_port *_snd
	cdef list _connected_slots
	cdef readonly int ec_tail_length
	cdef readonly int sample_rate
	cdef readonly int slot_count
	cdef readonly int used_slot_count
	cdef readonly unicode input_device
	cdef readonly unicode output_device
	cdef readonly unicode real_input_device
	cdef readonly unicode real_output_device

	# private methods
	cdef void _start_sound_device(self, PJSIPUA ua, unicode input_device, unicode output_device, int ec_tail_length)
	cdef void _stop_sound_device(self, PJSIPUA ua)
	cdef int _add_port(self, PJSIPUA ua, pj_pool_t pool, pjmedia_port port) except -1 with gil
	cdef int _remove_port(self, PJSIPUA ua, unsigned int slot) except -1 with gil
	cdef int _cb_postpoll_stop_sound(self, timer) except -1

	cdef class ToneGenerator(object):
	# attributes
	cdef int _slot
	cdef int _volume
	cdef pj_mutex_t *_lock
	cdef pj_pool_t *_pool
	cdef pjmedia_port *_obj
	cdef Timer _timer
	cdef readonly AudioMixer mixer

	# private methods
	cdef PJSIPUA _get_ua(self, int raise_exception)
	cdef int _stop(self, PJSIPUA ua) except -1
	cdef int _cb_check_done(self, timer) except -1

	cdef class RecordingWaveFile(object):
	# attributes
	cdef int _slot
	cdef int _was_started
	cdef pj_mutex_t *_lock
	cdef pj_pool_t *_pool
	cdef pjmedia_port *_port
	cdef readonly str filename
	cdef readonly AudioMixer mixer

	# private methods
	cdef PJSIPUA _check_ua(self)
	cdef int _stop(self, PJSIPUA ua) except -1

	cdef class WaveFile(object):
	# attributes
	cdef object __weakref__
	cdef object weakref
	cdef int _slot
	cdef int _volume
	cdef pj_mutex_t *_lock
	cdef pj_pool_t *_pool
	cdef pjmedia_port *_port
	cdef readonly str filename
	cdef readonly AudioMixer mixer

	# private methods
	cdef PJSIPUA _check_ua(self)
	cdef int _stop(self, PJSIPUA ua, int notify) except -1
	cdef int _cb_eof(self, timer) except -1

	cdef class MixerPort(object):
	cdef int _slot
	cdef int _was_started
	cdef pj_mutex_t *_lock
	cdef pj_pool_t *_pool
	cdef pjmedia_port *_port
	cdef readonly AudioMixer mixer

	# private methods
	cdef PJSIPUA _check_ua(self)
	cdef int _stop(self, PJSIPUA ua) except -1

	cdef int _AudioMixer_dealloc_handler(object obj) except -1
	cdef int cb_play_wav_eof(pjmedia_port port, void user_data) with gil

	# core.event

	cdef struct _core_event
	cdef struct _handler_queue
	cdef int _event_queue_append(_core_event *event)
	cdef void _cb_log(int level, char_ptr_const data, int len)
	cdef int _add_event(object event_name, dict params) except -1
	cdef list _get_clear_event_queue()
	cdef int _add_handler(int func(object obj) except -1, object obj, _handler_queue *queue) except -1
	cdef int _remove_handler(object obj, _handler_queue *queue) except -1
	cdef int _process_handler_queue(PJSIPUA ua, _handler_queue *queue) except -1

	# core.request

	cdef class EndpointAddress(object):
	# attributes
	cdef readonly bytes ip
	cdef readonly int port

	cdef class Request(object):
	# attributes
	cdef readonly object state
	cdef PJSTR _method
	cdef readonly EndpointAddress peer_address
	cdef readonly FrozenCredentials credentials
	cdef readonly FrozenFromHeader from_header
	cdef readonly FrozenToHeader to_header
	cdef readonly FrozenSIPURI request_uri
	cdef readonly FrozenContactHeader contact_header
	cdef readonly FrozenRouteHeader route_header
	cdef PJSTR _call_id
	cdef readonly int cseq
	cdef readonly frozenlist extra_headers
	cdef PJSTR _content_type
	cdef PJSTR _content_subtype
	cdef PJSTR _body
	cdef pjsip_tx_data *_tdata
	cdef pjsip_transaction *_tsx
	cdef pjsip_auth_clt_sess _auth
	cdef pjsip_route_hdr _route_header
	cdef int _need_auth
	cdef pj_timer_entry _timer
	cdef int _timer_active
	cdef int _expire_rest
	cdef object _expire_time
	cdef object _timeout

	# private methods
	cdef PJSIPUA _get_ua(self)
	cdef int _cb_tsx_state(self, PJSIPUA ua, pjsip_rx_data *rdata) except -1
	cdef int _cb_timer(self, PJSIPUA ua) except -1

	cdef class IncomingRequest(object):
	# attributes
	cdef readonly str state
	cdef pjsip_transaction *_tsx
	cdef pjsip_tx_data *_tdata
	cdef readonly EndpointAddress peer_address

	# methods
	cdef int init(self, PJSIPUA ua, pjsip_rx_data *rdata) except -1

	cdef void _Request_cb_tsx_state(pjsip_transaction tsx, pjsip_event event) with gil
	cdef void _Request_cb_timer(pj_timer_heap_t timer_heap, pj_timer_entry entry) with gil

	# core.referral

	cdef class Referral(object):
	# attributes
	cdef pjsip_evsub *_obj
	cdef pjsip_dialog *_dlg
	cdef pjsip_route_hdr _route_header
	cdef pj_list _route_set
	cdef int _create_subscription
	cdef readonly object state
	cdef pj_timer_entry _timeout_timer
	cdef int _timeout_timer_active
	cdef pj_timer_entry _refresh_timer
	cdef int _refresh_timer_active
	cdef readonly EndpointAddress peer_address
	cdef readonly FrozenFromHeader from_header
	cdef readonly FrozenToHeader to_header
	cdef readonly FrozenReferToHeader refer_to_header
	cdef readonly FrozenRouteHeader route_header
	cdef readonly FrozenCredentials credentials
	cdef readonly FrozenContactHeader local_contact_header
	cdef readonly FrozenContactHeader remote_contact_header
	cdef readonly int refresh
	cdef readonly frozenlist extra_headers
	cdef pj_time_val _request_timeout
	cdef int _want_end
	cdef int _term_code
	cdef object _term_reason

	# private methods
	cdef PJSIPUA _get_ua(self)
	cdef int _update_contact_header(self, BaseContactHeader contact_header) except -1
	cdef int _cancel_timers(self, PJSIPUA ua, int cancel_timeout, int cancel_refresh) except -1
	cdef int _send_refer(self, PJSIPUA ua, pj_time_val *timeout, FrozenReferToHeader refer_to_header, frozenlist extra_headers) except -1
	cdef int _send_subscribe(self, PJSIPUA ua, int expires, pj_time_val *timeout, frozenlist extra_headers) except -1
	cdef int _cb_state(self, PJSIPUA ua, object state, int code, str reason) except -1
	cdef int _cb_got_response(self, PJSIPUA ua, pjsip_rx_data *rdata, str method) except -1
	cdef int _cb_notify(self, PJSIPUA ua, pjsip_rx_data *rdata) except -1
	cdef int _cb_timeout_timer(self, PJSIPUA ua)
	cdef int _cb_refresh_timer(self, PJSIPUA ua)

	cdef class IncomingReferral(object):
	cdef pjsip_evsub *_obj
	cdef pjsip_dialog *_dlg
	cdef pjsip_tx_data *_initial_response
	cdef pjsip_transaction *_initial_tsx
	cdef pj_time_val _expires_time
	cdef int _create_subscription
	cdef readonly str state
	cdef readonly EndpointAddress peer_address
	cdef readonly FrozenContactHeader local_contact_header
	cdef readonly FrozenContactHeader remote_contact_header
	cdef PJSTR _content

	cdef int init(self, PJSIPUA ua, pjsip_rx_data *rdata) except -1
	cdef PJSIPUA _get_ua(self, int raise_exception)
	cdef int _set_content(self, int code, str reason) except -1
	cdef int _set_state(self, str state) except -1
	cdef int _send_initial_response(self, int code) except -1
	cdef int _send_notify(self) except -1
	cdef int _terminate(self, PJSIPUA ua, int do_cleanup) except -1
	cdef int _cb_rx_refresh(self, PJSIPUA ua, pjsip_rx_data *rdata) except -1
	cdef int _cb_server_timeout(self, PJSIPUA ua) except -1
	cdef int _cb_tsx(self, PJSIPUA ua, pjsip_event *event) except -1

	cdef void _Referral_cb_state(pjsip_evsub sub, pjsip_event event) with gil
	cdef void _Referral_cb_notify(pjsip_evsub sub, pjsip_rx_data rdata, int p_st_code, pj_str_t p_st_text, pjsip_hdr res_hdr, pjsip_msg_body **p_body) with gil
	cdef void _Referral_cb_refresh(pjsip_evsub *sub) with gil
	cdef void _IncomingReferral_cb_rx_refresh(pjsip_evsub sub, pjsip_rx_data rdata, int p_st_code, pj_str_t p_st_text, pjsip_hdr res_hdr, pjsip_msg_body **p_body) with gil
	cdef void _IncomingReferral_cb_server_timeout(pjsip_evsub *sub) with gil
	cdef void _IncomingReferral_cb_tsx(pjsip_evsub sub, pjsip_transaction tsx, pjsip_event *event) with gil

	# core.subscription

	cdef class Subscription(object):
	# attributes
	cdef pjsip_evsub *_obj
	cdef pjsip_dialog *_dlg
	cdef pjsip_route_hdr _route_header
	cdef pj_list _route_set
	cdef pj_timer_entry _timeout_timer
	cdef int _timeout_timer_active
	cdef pj_timer_entry _refresh_timer
	cdef int _refresh_timer_active
	cdef readonly object state
	cdef readonly EndpointAddress peer_address
	cdef readonly FrozenFromHeader from_header
	cdef readonly FrozenToHeader to_header
	cdef readonly FrozenContactHeader contact_header
	cdef readonly object event
	cdef readonly FrozenRouteHeader route_header
	cdef readonly FrozenCredentials credentials
	cdef readonly int refresh
	cdef readonly frozenlist extra_headers
	cdef readonly object body
	cdef readonly object content_type
	cdef readonly str call_id
	cdef pj_time_val _subscribe_timeout
	cdef int _want_end
	cdef int _term_code
	cdef object _term_reason
	cdef int _expires

	# private methods
	cdef PJSIPUA _get_ua(self)
	cdef int _cancel_timers(self, PJSIPUA ua, int cancel_timeout, int cancel_refresh) except -1
	cdef int _send_subscribe(self, PJSIPUA ua, int expires, pj_time_val *timeout,
	object extra_headers, object content_type, object body) except -1
	cdef int _cb_state(self, PJSIPUA ua, object state, int code, object reason, dict headers) except -1
	cdef int _cb_got_response(self, PJSIPUA ua, pjsip_rx_data *rdata) except -1
	cdef int _cb_notify(self, PJSIPUA ua, pjsip_rx_data *rdata) except -1
	cdef int _cb_timeout_timer(self, PJSIPUA ua)
	cdef int _cb_refresh_timer(self, PJSIPUA ua)

	cdef class IncomingSubscription(object):
	# attributes
	cdef pjsip_evsub *_obj
	cdef pjsip_dialog *_dlg
	cdef PJSTR _content_type
	cdef PJSTR _content_subtype
	cdef PJSTR _content
	cdef pjsip_tx_data *_initial_response
	cdef pjsip_transaction *_initial_tsx
	cdef int _expires
	cdef readonly str state
	cdef readonly str event
	cdef readonly str call_id
	cdef readonly EndpointAddress peer_address

	# methods
	cdef int _set_state(self, str state) except -1
	cdef PJSIPUA _get_ua(self, int raise_exception)
	cdef int init(self, PJSIPUA ua, pjsip_rx_data *rdata, str event) except -1
	cdef int _send_initial_response(self, int code) except -1
	cdef int _send_notify(self, str reason=*) except -1
	cdef int _terminate(self, PJSIPUA ua, str reason, int do_cleanup) except -1
	cdef int _cb_rx_refresh(self, PJSIPUA ua, pjsip_rx_data *rdata) except -1
	cdef int _cb_server_timeout(self, PJSIPUA ua) except -1
	cdef int _cb_tsx(self, PJSIPUA ua, pjsip_event *event) except -1

	cdef void _Subscription_cb_state(pjsip_evsub sub, pjsip_event event) with gil
	cdef void _Subscription_cb_notify(pjsip_evsub sub, pjsip_rx_data rdata, int *p_st_code,
	pj_str_t *p_st_text, pjsip_hdr res_hdr, pjsip_msg_body **p_body) with gil
	cdef void _Subscription_cb_refresh(pjsip_evsub *sub) with gil
	cdef void _IncomingSubscription_cb_rx_refresh(pjsip_evsub sub, pjsip_rx_data rdata,
	int p_st_code, pj_str_t *p_st_text,
	pjsip_hdr res_hdr, pjsip_msg_body *p_body) with gil
	cdef void _IncomingSubscription_cb_server_timeout(pjsip_evsub *sub) with gil
	cdef void _IncomingSubscription_cb_tsx(pjsip_evsub sub, pjsip_transaction tsx, pjsip_event *event) with gil

	# core.sdp

	cdef class BaseSDPConnection(object):
	# attributes
	cdef pjmedia_sdp_conn _sdp_connection

	# private methods
	cdef pjmedia_sdp_conn* get_sdp_connection(self)

	cdef class SDPConnection(BaseSDPConnection):
	# attributes
	cdef str _address
	cdef str _net_type
	cdef str _address_type

	cdef class FrozenSDPConnection(BaseSDPConnection):
	# attributes
	cdef int initialized
	cdef readonly str address
	cdef readonly str net_type
	cdef readonly str address_type

	cdef class SDPAttributeList(list):
	pass

	cdef class FrozenSDPAttributeList(frozenlist):
	pass

	cdef class BaseSDPSession(object):
	# attributes
	cdef pjmedia_sdp_session _sdp_session

	# private methods
	cdef pjmedia_sdp_session* get_sdp_session(self)

	cdef class SDPSession(BaseSDPSession):
	# attributes
	cdef str _address
	cdef str _user
	cdef str _net_type
	cdef str _address_type
	cdef str _name
	cdef str _info
	cdef SDPConnection _connection
	cdef list _attributes
	cdef list _media

	# private methods
	cdef int _update(self) except -1

	cdef class FrozenSDPSession(BaseSDPSession):
	# attributes
	cdef int initialized
	cdef readonly str address
	cdef readonly unsigned int id
	cdef readonly unsigned int version
	cdef readonly str user
	cdef readonly str net_type
	cdef readonly str address_type
	cdef readonly str name
	cdef readonly str info
	cdef readonly FrozenSDPConnection connection
	cdef readonly int start_time
	cdef readonly int stop_time
	cdef readonly FrozenSDPAttributeList attributes
	cdef readonly frozenlist media

	cdef class BaseSDPMediaStream(object):
	# attributes
	cdef pjmedia_sdp_media _sdp_media

	# private methods
	cdef pjmedia_sdp_media* get_sdp_media(self)

	cdef class SDPMediaStream(BaseSDPMediaStream):
	# attributes
	cdef str _media
	cdef str _transport
	cdef list _formats
	cdef list _codec_list
	cdef str _info
	cdef SDPConnection _connection
	cdef SDPAttributeList _attributes

	# private methods
	cdef int _update(self, SDPMediaStream media) except -1

	cdef class FrozenSDPMediaStream(BaseSDPMediaStream):
	# attributes
	cdef int initialized
	cdef readonly str media
	cdef readonly int port
	cdef readonly str transport
	cdef readonly int port_count
	cdef readonly frozenlist formats
	cdef readonly frozenlist codec_list
	cdef readonly str info
	cdef readonly FrozenSDPConnection connection
	cdef readonly FrozenSDPAttributeList attributes

	cdef class BaseSDPAttribute(object):
	# attributes
	cdef pjmedia_sdp_attr _sdp_attribute

	# private methods
	cdef pjmedia_sdp_attr* get_sdp_attribute(self)

	cdef class SDPAttribute(BaseSDPAttribute):
	# attributes
	cdef str _name
	cdef str _value

	cdef class FrozenSDPAttribute(BaseSDPAttribute):
	# attributes
	cdef int initialized
	cdef readonly str name
	cdef readonly str value

	cdef SDPSession SDPSession_create(pjmedia_sdp_session_ptr_const pj_session)
	cdef FrozenSDPSession FrozenSDPSession_create(pjmedia_sdp_session_ptr_const pj_session)
	cdef SDPMediaStream SDPMediaStream_create(pjmedia_sdp_media *pj_media)
	cdef FrozenSDPMediaStream FrozenSDPMediaStream_create(pjmedia_sdp_media *pj_media)
	cdef SDPConnection SDPConnection_create(pjmedia_sdp_conn *pj_conn)
	cdef FrozenSDPConnection FrozenSDPConnection_create(pjmedia_sdp_conn *pj_conn)
	cdef SDPAttribute SDPAttribute_create(pjmedia_sdp_attr *pj_attr)
	cdef FrozenSDPAttribute FrozenSDPAttribute_create(pjmedia_sdp_attr *pj_attr)

	cdef class SDPNegotiator(object):
	# attributes
	cdef pjmedia_sdp_neg* _neg
	cdef pj_pool_t *_pool

	# core.invitation

	cdef class SDPPayloads:
	cdef readonly FrozenSDPSession proposed_local
	cdef readonly FrozenSDPSession proposed_remote
	cdef readonly FrozenSDPSession active_local
	cdef readonly FrozenSDPSession active_remote

	cdef class StateCallbackTimer(Timer):
	cdef object state
	cdef object sub_state
	cdef object rdata
	cdef object tdata
	cdef object originator

	cdef class SDPCallbackTimer(Timer):
	cdef int status

	cdef class TransferStateCallbackTimer(Timer):
	cdef object state
	cdef object code
	cdef object reason

	cdef class TransferResponseCallbackTimer(Timer):
	cdef object method
	cdef object rdata

	cdef class TransferRequestCallbackTimer(Timer):
	cdef object rdata

	cdef class Invitation(object):
	# attributes
	cdef object __weakref__
	cdef object weakref
	cdef int _sdp_neg_status
	cdef int _failed_response
	cdef pj_list _route_set
	cdef pj_mutex_t *_lock
	cdef pjsip_inv_session *_invite_session
	cdef pjsip_evsub *_transfer_usage
	cdef pjsip_role_e _transfer_usage_role
	cdef pjsip_dialog *_dialog
	cdef pjsip_route_hdr _route_header
	cdef pjsip_transaction *_reinvite_transaction
	cdef PJSTR _sipfrag_payload
	cdef Timer _timer
	cdef Timer _transfer_timeout_timer
	cdef Timer _transfer_refresh_timer
	cdef readonly str call_id
	cdef readonly str direction
	cdef readonly str remote_user_agent
	cdef readonly str state
	cdef readonly str sub_state
	cdef readonly str transport
	cdef readonly str transfer_state
	cdef readonly EndpointAddress peer_address
	cdef readonly FrozenCredentials credentials
	cdef readonly FrozenContactHeader local_contact_header
	cdef readonly FrozenContactHeader remote_contact_header
	cdef readonly FrozenFromHeader from_header
	cdef readonly FrozenToHeader to_header
	cdef readonly FrozenSIPURI request_uri
	cdef readonly FrozenRouteHeader route_header
	cdef readonly SDPPayloads sdp

	# private methods
	cdef int init_incoming(self, PJSIPUA ua, pjsip_rx_data *rdata, unsigned int inv_options) except -1
	cdef int process_incoming_transfer(self, PJSIPUA ua, pjsip_rx_data *rdata) except -1
	cdef int process_incoming_options(self, PJSIPUA ua, pjsip_rx_data *rdata) except -1
	cdef PJSIPUA _check_ua(self)
	cdef int _do_dealloc(self) except -1
	cdef int _update_contact_header(self, BaseContactHeader contact_header) except -1
	cdef int _fail(self, PJSIPUA ua) except -1
	cdef int _cb_state(self, StateCallbackTimer timer) except -1
	cdef int _cb_sdp_done(self, SDPCallbackTimer timer) except -1
	cdef int _cb_timer_disconnect(self, timer) except -1
	cdef int _cb_postpoll_fail(self, timer) except -1
	cdef int _start_incoming_transfer(self, timer) except -1
	cdef int _terminate_transfer(self) except -1
	cdef int _terminate_transfer_uac(self) except -1
	cdef int _terminate_transfer_uas(self) except -1
	cdef int _set_transfer_state(self, str state) except -1
	cdef int _set_sipfrag_payload(self, int code, str reason) except -1
	cdef int _send_notify(self) except -1
	cdef int _transfer_cb_timeout_timer(self, timer) except -1
	cdef int _transfer_cb_refresh_timer(self, timer) except -1
	cdef int _transfer_cb_state(self, TransferStateCallbackTimer timer) except -1
	cdef int _transfer_cb_response(self, TransferResponseCallbackTimer timer) except -1
	cdef int _transfer_cb_notify(self, TransferRequestCallbackTimer timer) except -1
	cdef int _transfer_cb_server_timeout(self, timer) except -1

	cdef void _Invitation_cb_state(pjsip_inv_session inv, pjsip_event e) with gil
	cdef void _Invitation_cb_sdp_done(pjsip_inv_session *inv, int status) with gil
	cdef int _Invitation_cb_rx_reinvite(pjsip_inv_session inv, pjmedia_sdp_session_ptr_const offer, pjsip_rx_data rdata) with gil
	cdef void _Invitation_cb_tsx_state_changed(pjsip_inv_session inv, pjsip_transaction tsx, pjsip_event *e) with gil
	cdef void _Invitation_cb_new(pjsip_inv_session inv, pjsip_event e) with gil
	cdef void _Invitation_transfer_cb_state(pjsip_evsub sub, pjsip_event event) with gil
	cdef void _Invitation_transfer_cb_tsx(pjsip_evsub sub, pjsip_transaction tsx, pjsip_event *event) with gil
	cdef void _Invitation_transfer_cb_notify(pjsip_evsub sub, pjsip_rx_data rdata, int *p_st_code,
	pj_str_t *p_st_text, pjsip_hdr res_hdr, pjsip_msg_body **p_body) with gil
	cdef void _Invitation_transfer_cb_refresh(pjsip_evsub *sub) with gil
	cdef void _Invitation_transfer_in_cb_rx_refresh(pjsip_evsub sub, pjsip_rx_data rdata, int *p_st_code,
	pj_str_t *p_st_text, pjsip_hdr res_hdr, pjsip_msg_body **p_body) with gil
	cdef void _Invitation_transfer_in_cb_server_timeout(pjsip_evsub *sub) with gil

	# core.mediatransport

	cdef class ICECandidate(object):
	# attributes
	cdef readonly str component
	cdef readonly str type
	cdef readonly str address
	cdef readonly int port
	cdef readonly int priority
	cdef readonly str rel_address

	cdef class ICECheck(object):
	cdef readonly ICECandidate local_candidate
	cdef readonly ICECandidate remote_candidate
	cdef readonly str state
	cdef readonly int nominated

	cdef class RTPTransport(object):
	# attributes
	cdef object __weakref__
	cdef object weakref
	cdef int _af
	cdef int _ice_active
	cdef pj_mutex_t *_lock
	cdef pj_pool_t *_pool
	cdef pjmedia_transport *_obj
	cdef pjmedia_transport *_wrapped_transport
	cdef object _local_rtp_addr
	cdef ICECheck _rtp_valid_pair
	cdef readonly object ice_stun_address
	cdef readonly object ice_stun_port
	cdef readonly object srtp_forced
	cdef readonly object state
	cdef readonly object use_ice
	cdef readonly object use_srtp

	# private methods
	cdef PJSIPUA _check_ua(self)
	cdef void _get_info(self, pjmedia_transport_info *info)
	cdef int _update_local_sdp(self, SDPSession local_sdp, int sdp_index, pjmedia_sdp_session *remote_sdp) except -1

	cdef class MediaCheckTimer(Timer):
	# attributes
	cdef int media_check_interval

	cdef class AudioTransport(object):
	# attributes
	cdef object __weakref__
	cdef object weakref
	cdef int _is_offer
	cdef int _is_started
	cdef int _slot
	cdef int _volume
	cdef unsigned int _packets_received
	cdef unsigned int _vad
	cdef pj_mutex_t *_lock
	cdef pj_pool_t *_pool
	cdef pjmedia_sdp_media *_local_media
	cdef pjmedia_stream *_obj
	cdef pjmedia_stream_info _stream_info
	cdef dict _cached_statistics
	cdef Timer _timer
	cdef readonly object direction
	cdef readonly AudioMixer mixer
	cdef readonly RTPTransport transport

	# private methods
	cdef PJSIPUA _check_ua(self)
	cdef int _cb_check_rtp(self, MediaCheckTimer timer) except -1 with gil

	cdef void _RTPTransport_cb_ice_complete(pjmedia_transport *tp, pj_ice_strans_op op, int status) with gil
	cdef void _RTPTransport_cb_ice_state(pjmedia_transport *tp, pj_ice_strans_state prev, pj_ice_strans_state curr) with gil
	cdef void _RTPTransport_cb_ice_stop(pjmedia_transport tp, char reason, int err) with gil
	cdef void _AudioTransport_cb_dtmf(pjmedia_stream stream, void user_data, int digit) with gil
	cdef ICECandidate ICECandidate_create(pj_ice_sess_cand *cand)
	cdef ICECheck ICECheck_create(pj_ice_sess_check *check)
	cdef str _ice_state_to_str(int state)
	cdef dict _extract_ice_session_data(pj_ice_sess *ice_sess)
	cdef dict _pj_math_stat_to_dict(pj_math_stat *stat)
	cdef dict _pjmedia_rtcp_stream_stat_to_dict(pjmedia_rtcp_stream_stat *stream_stat)

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