Reuse jacklib python module, made by falktx
authorNikita Zlobin <cook60020tmp@mail.ru>
Sun, 26 Dec 2010 11:57:54 +0000 (26 16:57 +0500)
committerNikita Zlobin <cook60020tmp@mail.ru>
Sun, 26 Dec 2010 11:57:54 +0000 (26 16:57 +0500)
jacklib.py [new file with mode: 0644]

diff --git a/jacklib.py b/jacklib.py
new file mode 100644 (file)
index 0000000..42cf34d
--- /dev/null
@@ -0,0 +1,693 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# TODO:
+# - error-callback, function
+# - info-callback, function
+
+# Imports
+from ctypes import *
+from sys import platform
+
+
+# Load Jack shared library
+if (platform == 'win32'):
+  jacklib = cdll.LoadLibrary("libjack.dll")
+else:
+  jacklib = cdll.LoadLibrary("libjack.so.0")
+
+
+# Defines
+MAX_FRAMES = 4294967295
+LOAD_INIT_LIMIT = 1024
+
+DEFAULT_AUDIO_TYPE = "32 bit float mono audio"
+DEFAULT_MIDI_TYPE  = "8 bit raw midi"
+
+# Jack Port Flags
+PortIsInput    = 0x1
+PortIsOutput   = 0x2
+PortIsPhysical = 0x4
+PortCanMonitor = 0x8
+PortIsTerminal = 0x10
+PortIsActive   = 0x20
+
+# Jack Options
+NullOption    = 0x00
+NoStartServer = 0x01
+UseExactName  = 0x02
+ServerName    = 0x04
+LoadName      = 0x08
+LoadInit      = 0x10
+OpenOptions = (ServerName|NoStartServer|UseExactName)
+LoadOptions = (LoadInit|LoadName|UseExactName)
+
+# Jack Status
+Failure       = 0x01
+InvalidOption = 0x02
+NameNotUnique = 0x04
+ServerStarted = 0x08
+ServerFailed  = 0x10
+ServerError   = 0x20
+NoSuchClient  = 0x40
+LoadFailure   = 0x80
+InitFailure   = 0x100
+ShmFailure    = 0x200
+VersionError  = 0x400
+BackendError  = 0x800
+ClientZombie  = 0x1000
+
+# Jack Transport states
+TransportStopped     = 0
+TransportRolling     = 1
+TransportStarting    = 3
+TransportNetStarting = 4
+
+# Optional struct jack_position_t fields
+PositionBBT      = 0x10
+PositionTimecode = 0x20
+BBTFrameOffset   = 0x40
+AudioVideoRatio  = 0x80
+VideoFrameOffset = 0x100
+POSITION_MASK = (PositionBBT|PositionTimecode)
+
+# Optional struct jack_transport_info_t fields
+TransportState    = 0x1
+TransportPosition = 0x2
+TransportLoop     = 0x4
+TransportSMPTE    = 0x8
+TransportBBT      = 0x10
+
+# Jack Session Event Type
+JackSessionSave = 1
+JackSessionSaveAndQuit = 2
+JackSessionSaveTemplate = 3
+
+# Jack Session Flags
+SessionSaveError = 0x01
+SessionNeedTerminal = 0x02
+
+# ? Not in the Jack API:
+AUDIO = 0
+MIDI  = 1
+
+
+# Types
+jack_shmsize_t = c_int32
+jack_nframes_t = c_uint32
+jack_time_t = c_uint64
+jack_intclient_t = c_uint64
+jack_port_id_t = c_uint32
+jack_port_type_id_t = c_uint32
+jack_default_audio_sample_t = c_float
+jack_unique_t = c_uint64
+jack_port_t = c_long #_jack_port
+jack_client_t = c_long #_jack_client
+jack_options_t = c_int
+jack_status_t = c_int
+jack_transport_state_t = c_int
+jack_position_bits_t = c_int
+jack_transport_bits_t = c_int
+jack_session_event_type_t = c_int
+jack_session_flags_t = c_int
+
+class jack_position_t(Structure):
+  _fields_ = [
+    ("unique_1", jack_unique_t),
+    ("usecs", jack_time_t),
+    ("frame_rate", jack_nframes_t),
+    ("frame", jack_nframes_t),
+    ("valid", jack_position_bits_t),
+    ("bar", c_int32),
+    ("beat", c_int32),
+    ("tick", c_int32),
+    ("bar_start_tick", c_double),
+    ("beats_per_bar", c_float),
+    ("beat_type", c_float),
+    ("ticks_per_beat", c_double),
+    ("beats_per_minute", c_double),
+    ("frame_time", c_double),
+    ("next_time", c_double),
+    ("bbt_offset", jack_nframes_t),
+    ("audio_frames_per_video_frame", c_float),
+    ("video_offset", jack_nframes_t),
+    ("padding[7]", c_int32), #FIXME
+    ("unique_2", jack_unique_t)
+  ]
+jack_position_t = POINTER(jack_position_t)
+
+class jack_session_event_t(Structure):
+  _fields_ = [
+    ("type", jack_session_event_type_t),
+    ("session_dir", c_char_p),
+    ("client_uuid", c_char_p),
+    ("command_line", c_char),
+    ("flags", jack_session_flags_t),
+    ("future", c_uint32),
+  ]
+jack_session_event_t = POINTER(jack_session_event_t)
+
+class jack_session_command_t(Structure):
+  _fields_ = [
+    ("uuid", c_char_p),
+    ("client_name", c_char_p),
+    ("command", c_char_p),
+    ("flags", jack_session_flags_t),
+  ]
+
+
+# Special Callback defines
+global ThreadInitCallback, ShutdownCallback, InfoShutdownCallback
+global ProcessCallback, FreewheelCallback, BufferSizeCallback, SampleRateCallback
+global ClientRegistrationCallback, PortRegistrationCallback, PortConnectCallback, GraphOrderCallback, XRunCallback
+global ThreadCallback, SyncCallback, TimebaseCallback, SessionCallback
+
+
+# Internal C char** -> Python list conversion
+def __pointer_to_list(list_p):
+  final_list = []
+  i = 0
+
+  if (not list_p):
+    jack_free(list_p)
+    return final_list
+
+  while (True):
+    new_char_p = list_p[i]
+    if (new_char_p):
+      final_list.append(str(new_char_p))
+    else:
+      break
+    i += 1
+
+  jack_free(list_p)
+  return final_list
+
+
+# Functions
+
+def get_version_string():
+  jacklib.jack_get_version_string.argtypes = None
+  jacklib.jack_get_version_string.restype = c_char_p
+  return jacklib.jack_get_version_string()
+
+def client_open(client_name, options, status):
+  if (not status): status = 0
+  jacklib.jack_client_open.argtypes = [c_char_p, c_int, c_int]
+  jacklib.jack_client_open.restype = jack_client_t
+  return jacklib.jack_client_open(client_name, options, status)
+
+def client_close(client):
+  jacklib.jack_client_close.argtypes = [jack_client_t]
+  jacklib.jack_client_close.restype = c_int
+  return jacklib.jack_client_close(client)
+
+def client_name_size():
+  jacklib.jack_client_name_size.argtypes = None
+  jacklib.jack_client_name_size.restype = c_int
+  return jacklib.jack_client_name_size()
+
+def client_name(client):
+  jacklib.jack_get_client_name.argtypes = [jack_client_t]
+  jacklib.jack_get_client_name.restype = c_char_p
+  return jacklib.jack_get_client_name(client)
+
+def activate(client):
+  jacklib.jack_activate.argtypes = [jack_client_t]
+  jacklib.jack_activate.restype = c_int
+  return jacklib.jack_activate(client)
+
+def deactivate(client):
+  jacklib.jack_deactivate.argtypes = [jack_client_t]
+  jacklib.jack_deactivate.restype = c_int
+  return jacklib.jack_deactivate(client)
+
+def get_client_pid(client):
+  jacklib.jack_get_client_pid.argtypes = [jack_client_t]
+  jacklib.jack_get_client_pid.restype = c_int
+  return jacklib.jack_get_client_pid(client)
+
+def get_client_thread_id(client): #TODO - restype as 'HANDLE'
+  jacklib.jack_get_client_thread_id.argtypes = [jack_client_t]
+  #jacklib.jack_get_client_thread_id.restype = HANDLE
+  return jacklib.jack_get_client_thread_id(client)
+
+def client_thread_id(client): #TODO - restype as 'pthread_t'
+  jacklib.jack_client_thread_id.argtypes = [jack_client_t]
+  #jacklib.jack_client_thread_id.restype = pthread_t
+  return jacklib.jack_client_thread_id(client)
+
+def is_realtime(client):
+  jacklib.jack_is_realtime.argtypes = [jack_client_t]
+  jacklib.jack_is_realtime.restype = c_int
+  return jacklib.jack_is_realtime(client)
+
+
+# Non Callback API
+
+def thread_wait(client):
+  jacklib.jack_thread_wait.argtypes = [jack_client_t, c_int]
+  jacklib.jack_thread_wait.restype = jack_nframes_t
+  return jacklib.jack_thread_wait(client, status)
+
+def cycle_wait(client):
+  jacklib.jack_cycle_wait.argtypes = jack_client_t
+  jacklib.jack_cycle_wait.restype = jack_nframes_t
+  return jacklib.jack_cycle_wait(client)
+
+def cycle_signal(client, status):
+  jacklib.jack_cycle_signal.argtypes = [jack_client_t, status]
+  jacklib.jack_cycle_signal.restype = None
+  return jacklib.jack_cycle_signal(client, status)
+
+def set_process_thread(client, thread_callback, arg=None):
+  global ThreadCallback
+  ThreadCallback = CFUNCTYPE(c_int, c_void_p)(thread_callback)
+  jacklib.jack_set_process_thread.restype = c_int
+  return jacklib.jack_set_process_thread(client)
+
+
+# Client Callbacks
+
+def set_thread_init_callback(client, thread_init_callback, arg=None):
+  global ThreadInitCallback
+  ThreadInitCallback = CFUNCTYPE(c_int, c_void_p)(thread_init_callback)
+  jacklib.jack_set_thread_init_callback.restype = c_int
+  return jacklib.jack_set_thread_init_callback(client, ThreadInitCallback, arg)
+
+def on_shutdown(client, shutdown_callback, arg=None):
+  global ShutdownCallback
+  ShutdownCallback = CFUNCTYPE(c_int, c_void_p)(shutdown_callback)
+  jacklib.jack_on_shutdown(client, ShutdownCallback, arg)
+
+def on_info_shutdown(client, shutdown_callback, arg=None):
+  global InfoShutdownCallback
+  InfoShutdownCallback = CFUNCTYPE(c_int, c_int, c_char_p, c_void_p)(shutdown_callback)
+  jacklib.jack_on_info_shutdown(client, InfoShutdownCallback, arg)
+
+def set_process_callback(client, process_callback, arg=None):
+  global ProcessCallback
+  ProcessCallback = CFUNCTYPE(c_int, c_int, c_void_p)(process_callback)
+  jacklib.jack_set_process_callback.restype = c_int
+  return jacklib.jack_set_process_callback(client, ProcessCallback, arg)
+
+def set_freewheel_callback(client, freewheel_callback, arg=None):
+  global FreewheelCallback
+  FreewheelCallback = CFUNCTYPE(c_int, c_int, c_void_p)(freewheel_callback)
+  jacklib.jack_set_freewheel_callback.restype = c_int
+  return jacklib.jack_set_freewheel_callback(client, FreewheelCallback, arg)
+
+def set_buffer_size_callback(client, buffer_size_callback, arg=None):
+  global BufferSizeCallback
+  BufferSizeCallback = CFUNCTYPE(c_int, c_int, c_void_p)(buffer_size_callback)
+  jacklib.jack_set_buffer_size_callback.restype = c_int
+  return jacklib.jack_set_buffer_size_callback(client, BufferSizeCallback, arg)
+
+def set_sample_rate_callback(client, srate_callback, arg=None):
+  global SampleRateCallback
+  SampleRateCallback = CFUNCTYPE(c_int, c_int, c_void_p)(srate_callback)
+  jacklib.jack_set_sample_rate_callback.restype = c_int
+  return jacklib.jack_set_sample_rate_callback(client, SampleRateCallback, arg)
+
+def set_client_registration_callback(client, registration_callback, arg=None):
+  global ClientRegistrationCallback
+  ClientRegistrationCallback = CFUNCTYPE(c_int, c_char_p, c_int, c_void_p)(registration_callback)
+  jacklib.jack_set_client_registration_callback.restype = c_int
+  return jacklib.jack_set_client_registration_callback(client, ClientRegistrationCallback, arg)
+
+def set_port_registration_callback(client, registration_callback, arg=None):
+  global PortRegistrationCallback
+  PortRegistrationCallback = CFUNCTYPE(c_int, c_int, c_int, c_void_p)(registration_callback)
+  jacklib.jack_set_port_registration_callback.restype = c_int
+  return jacklib.jack_set_port_registration_callback(client, PortRegistrationCallback, arg)
+
+def set_port_connect_callback(client, connect_callback, arg=None):
+  global PortConnectCallback
+  PortConnectCallback = CFUNCTYPE(c_int, c_int, c_int, c_int, c_void_p)(connect_callback)
+  jacklib.jack_set_port_connect_callback.restype = c_int
+  return jacklib.jack_set_port_connect_callback(client, PortConnectCallback, arg)
+
+def set_port_rename_callback(client, rename_callback, arg=None):
+  global PortRenameCallback
+  PortRenameCallback = CFUNCTYPE(c_int, c_int, c_char_p, c_char_p, c_void_p)(rename_callback)
+  jacklib.jack_set_port_rename_callback.restype = c_int
+  return jacklib.jack_set_port_rename_callback(client, PortRenameCallback, arg)
+
+def set_graph_order_callback(client, graph_callback, arg=None):
+  global GraphOrderCallback
+  GraphOrderCallback = CFUNCTYPE(c_int, c_void_p)(graph_callback)
+  jacklib.jack_set_graph_order_callback.restype = c_int
+  return jacklib.jack_set_graph_order_callback(client, GraphOrderCallback, arg)
+
+def set_xrun_callback(client, xrun_callback, arg=None):
+  global XRunCallback
+  XRunCallback = CFUNCTYPE(c_int, c_void_p)(xrun_callback)
+  jacklib.jack_set_xrun_callback.restype = c_int
+  return jacklib.jack_set_xrun_callback(client, XRunCallback, arg)
+
+
+# ServerClientControl
+
+def set_freewheel(client, onoff):
+  jacklib.jack_set_freewheel.argtypes = [jack_client_t, c_int]
+  jacklib.jack_set_freewheel.restype = c_int
+  return jacklib.jack_set_freewheel(onoff)
+
+def set_buffer_size(client, nframes):
+  jacklib.jack_set_buffer_size.argtypes = [jack_client_t, jack_nframes_t]
+  jacklib.jack_set_buffer_size.restype = c_int
+  return jacklib.jack_set_buffer_size(client, nframes)
+
+def get_sample_rate(client):
+  jacklib.jack_get_sample_rate.argtypes = [jack_client_t]
+  jacklib.jack_get_sample_rate.restype = jack_nframes_t
+  return jacklib.jack_get_sample_rate(client)
+
+def get_buffer_size(client):
+  jacklib.jack_get_buffer_size.argtypes = [jack_client_t]
+  jacklib.jack_get_buffer_size.restype = jack_nframes_t
+  return jacklib.jack_get_buffer_size(client)
+
+def cpu_load(client):
+  jacklib.jack_cpu_load.argtypes = [jack_client_t]
+  jacklib.jack_cpu_load.restype = c_float
+  return jacklib.jack_cpu_load(client)
+
+
+# PortFunctions
+
+def port_register(client, port_name, port_type, flags, buffer_size):
+  jacklib.jack_port_short_name.argtypes = [jack_client_t, c_char_p, c_char_p, c_ulong, c_ulong]
+  jacklib.jack_port_short_name.restype = c_char_p
+  return jacklib.jack_port_register(client, port_name, port_type, flags, buffer_size)
+
+def port_unregister(client, port):
+  jacklib.jack_port_unregister.argtypes = [jack_client_t, jack_port_t]
+  jacklib.jack_port_unregister.restype = c_int
+  return jacklib.jack_port_unregister(client, port)
+
+def port_name(port):
+  jacklib.jack_port_name.argtypes = [jack_port_t]
+  jacklib.jack_port_name.restype = c_char_p
+  return jacklib.jack_port_name(port)
+
+def port_short_name(port):
+  jacklib.jack_port_short_name.argtypes = [jack_port_t]
+  jacklib.jack_port_short_name.restype = c_char_p
+  return jacklib.jack_port_short_name(port)
+
+def port_flags(port):
+  jacklib.jack_port_flags.argtypes = [jack_port_t]
+  jacklib.jack_port_flags.restype = c_int
+  return jacklib.jack_port_flags(port)
+
+def port_type(port):
+  jacklib.jack_port_type.argtypes = [jack_port_t]
+  jacklib.jack_port_type.restype = c_char_p
+  return jacklib.jack_port_type(port)
+
+def port_type_id(port):
+  jacklib.jack_port_type_id.argtypes = [jack_port_t]
+  jacklib.jack_port_type_id.restype = jack_port_type_id_t
+  return jacklib.jack_port_type_id(port)
+
+def port_is_mine(client, port):
+  jacklib.jack_port_is_mine.argtypes = [jack_client_t, jack_port_t]
+  jacklib.jack_port_is_mine.restype = c_int
+  return jacklib.jack_port_is_mine(client, port)
+
+def port_connected(port):
+  jacklib.jack_port_connected.argtypes = [jack_port_t]
+  jacklib.jack_port_connected.restype = c_int
+  return jacklib.jack_port_connected(port)
+
+def port_connected_to(port, port_name):
+  jacklib.jack_port_connected_to.argtypes = [jack_port_t, c_char_p]
+  jacklib.jack_port_connected_to.restype = c_int
+  return jacklib.jack_port_connected_to(port, port_name)
+
+def port_get_connections(port):
+  jacklib.jack_port_get_connections.argtypes = [jack_port_t]
+  jacklib.jack_port_get_connections.restype = POINTER(c_char_p)
+  list_p = jacklib.jack_port_get_connections(port)
+  return __pointer_to_list(list_p)
+
+def port_get_all_connections(client, port):
+  jacklib.jack_port_get_all_connections.argtypes = [jack_client_t, jack_port_t]
+  jacklib.jack_port_get_all_connections.restype = POINTER(c_char_p)
+  list_p = jacklib.jack_port_get_all_connections(client, port)
+  return __pointer_to_list(list_p)
+
+def port_get_latency(port):
+  jacklib.jack_port_get_latency.argtypes = [jack_port_t]
+  jacklib.jack_port_get_latency.restype = jack_nframes_t
+  return jacklib.jack_port_get_latency(port)
+
+def port_get_total_latency(client, port):
+  jacklib.jack_port_get_total_latency.argtypes = [jack_client_t, jack_port_t]
+  jacklib.jack_port_get_total_latency.restype = jack_nframes_t
+  return jacklib.jack_port_get_total_latency(client, port)
+
+def port_set_latency(port, nframes):
+  jacklib.jack_port_set_latency.argtypes = [jack_port_t, jack_nframes_t]
+  jacklib.jack_port_set_latency.restype = None
+  jacklib.jack_port_set_latency(port, nframes)
+
+def recompute_total_latency(client, port):
+  jacklib.jack_recompute_total_latency.argtypes = [jack_client_t, jack_port_t]
+  jacklib.jack_recompute_total_latency.restype = c_int
+  return jacklib.jack_recompute_total_latency(client, port)
+
+def jack_recompute_total_latencies():
+  jacklib.jack_recompute_total_latencies.argtypes = [jack_client_t]
+  jacklib.jack_recompute_total_latencies.restype = c_int
+  return jacklib.jack_jack_recompute_total_latencies()
+
+def port_set_name(port, port_name):
+  jacklib.jack_port_set_name.argtypes = [jack_port_t, c_char_p]
+  jacklib.jack_port_set_name.restype = c_int
+  return jacklib.jack_port_set_name(port, port_name)
+
+def port_set_alias(port, alias):
+  jacklib.jack_port_set_alias.argtypes = [jack_port_t, c_char_p]
+  jacklib.jack_port_set_alias.restype = c_int
+  return jacklib.jack_port_set_alias(port, alias)
+
+def port_unset_alias(port, alias):
+  jacklib.jack_port_unset_alias.argtypes = [jack_port_t, c_char_p]
+  jacklib.jack_port_unset_alias.restype = c_int
+  return jacklib.jack_port_unset_alias(port, alias)
+
+def port_get_aliases(port, aliases): #TODO - check argtypes
+  jacklib.jack_port_get_aliases.argtypes = [jack_port_t, POINTER(c_char_p)] #POINTER(ARRAY(c_char_p, 2))
+  jacklib.jack_port_get_aliases.restype = c_int
+  return jacklib.jack_port_get_aliases(port, pointer(c_char_p(aliases)))
+
+def port_request_monitor(port, onoff):
+  jacklib.jack_port_request_monitor.argtypes = [jack_port_t, c_int]
+  jacklib.jack_port_request_monitor.restype = c_int
+  return jacklib.jack_port_request_monitor(port, onoff)
+
+def port_request_monitor_by_name(client, port_name, onoff):
+  jacklib.jack_port_request_monitor_by_name.argtypes = [jack_client_t, c_char_p, c_int]
+  jacklib.jack_port_request_monitor_by_name.restype = c_int
+  return jacklib.jack_port_request_monitor_by_name(client, port_name, onoff)
+
+def port_ensure_monitor(port, onoff):
+  jacklib.jack_port_ensure_monitor.argtypes = [jack_port_t, c_int]
+  jacklib.jack_port_ensure_monitor.restype = c_int
+  return jacklib.jack_port_ensure_monitor(port, onoff)
+
+def port_monitoring_input(port):
+  jacklib.jack_port_monitoring_input.argtypes = [jack_port_t]
+  jacklib.jack_port_monitoring_input.restype = c_int
+  return jacklib.jack_port_monitoring_input(port)
+
+def connect(client, source_port, destination_port):
+  jacklib.jack_connect.argtypes = [jack_client_t, c_char_p, c_char_p]
+  jacklib.jack_connect.restype = c_int
+  return jacklib.jack_connect(client, source_port, destination_port)
+
+def disconnect(client, source_port, destination_port):
+  jacklib.jack_disconnect.argtypes = [jack_client_t, c_char_p, c_char_p]
+  jacklib.jack_disconnect.restype = c_int
+  return jacklib.jack_disconnect(client, source_port, destination_port)
+
+def port_disconnect(client, port):
+  jacklib.jack_port_disconnect.argtypes = [jack_client_t, jack_port_t]
+  jacklib.jack_port_disconnect.restype = c_int
+  return jacklib.jack_port_disconnect(client, port)
+
+def port_name_size():
+  jacklib.jack_port_name_size.argtypes = None
+  jacklib.jack_port_name_size.restype = c_int
+  return jacklib.jack_port_name_size()
+
+def port_type_size():
+  jacklib.jack_port_type_size.argtypes = None
+  jacklib.jack_port_type_size.restype = c_int
+  return jacklib.jack_port_type_size()
+
+
+# PortSearching
+
+def get_ports(client, port_name_pattern, type_name_pattern, flags):
+  jacklib.jack_get_ports.argtypes = [jack_client_t, c_char_p, c_char_p, c_ulong]
+  jacklib.jack_get_ports.restype = POINTER(c_char_p)
+  list_p = jacklib.jack_get_ports(client, port_name_pattern, type_name_pattern, flags)
+  return __pointer_to_list(list_p)
+
+def port_by_name(client, port_name):
+  jacklib.jack_port_by_name.argtypes = [jack_client_t, c_char_p]
+  jacklib.jack_port_by_name.restype = jack_port_t
+  return jacklib.jack_port_by_name(client, port_name)
+
+def port_by_id(client, port_id):
+  jacklib.jack_port_by_id.argtypes = [jack_client_t, jack_port_id_t]
+  jacklib.jack_port_by_id.restype = jack_port_t
+  return jacklib.jack_port_by_id(client, port_id)
+
+
+# TimeFunctions
+
+def frames_since_cycle_start(client):
+  jacklib.jack_frames_since_cycle_start.argtypes = [jack_client_t]
+  jacklib.jack_frames_since_cycle_start.restype = jack_nframes_t
+  return jacklib.jack_frames_since_cycle_start(client)
+
+def frame_time(client):
+  jacklib.jack_frame_time.argtypes = [jack_client_t]
+  jacklib.jack_frame_time.restype = jack_nframes_t
+  return jacklib.jack_frame_time(client)
+
+def last_frame_time(client):
+  jacklib.jack_last_frame_time.argtypes = [jack_client_t]
+  jacklib.jack_last_frame_time.restype = jack_nframes_t
+  return jacklib.jack_last_frame_time(client)
+
+def frames_to_time(client, nframes):
+  jacklib.jack_frames_to_time.argtypes = [jack_client_t, jack_nframes_t]
+  jacklib.jack_frames_to_time.restype = jack_time_t
+  return jacklib.jack_frames_to_time(client, nframes)
+
+def time_to_frames(client, time):
+  jacklib.jack_time_to_frames.argtypes = [jack_client_t, jack_time_t]
+  jacklib.jack_time_to_frames.restype = jack_nframes_t
+  return jacklib.jack_time_to_frames(client, time)
+
+def get_time():
+  jacklib.jack_get_time.argtypes = [None]
+  jacklib.jack_get_time.restype = jack_time_t
+  return jacklib.jack_get_time()
+
+
+# Transport
+
+def release_timebase(client):
+  jacklib.jack_release_timebase.argtypes = [jack_client_t]
+  jacklib.jack_release_timebase.restype = c_int
+  return jacklib.jack_release_timebase(client)
+
+def set_sync_callback(client, sync_callback, arg=None):
+  global SyncCallback
+  SyncCallback = CFUNCTYPE(c_int, c_int, type(pointer(jack_position_t)), c_void_p)(sync_callback)
+  jacklib.jack_set_sync_callback.restype = c_int
+  return jacklib.jack_set_sync_callback(client, SyncCallback, arg)
+
+def set_sync_timeout(client, timeout):
+  jacklib.jack_set_sync_timeout.argtypes = [jack_client_t, jack_time_t]
+  jacklib.jack_set_sync_timeout.restype = c_int
+  return jacklib.jack_set_sync_timeout(client, timeout)
+
+def set_timebase_callback(client, conditional, timebase_callback, arg=None):
+  global TimebaseCallback
+  TimebaseCallback = CFUNCTYPE(c_int, c_int, c_int, type(pointer(jack_position_t)), c_int, c_void_p)(sync_callback)
+  jacklib.jack_set_timebase_callback.restype = c_int
+  return jacklib.jack_set_timebase_callback(client, conditional, TimebaseCallback, arg)
+
+def transport_locate(client, frame):
+  jacklib.jack_transport_locate.argtypes = [jack_client_t, jack_nframes_t]
+  jacklib.jack_transport_locate.restype = c_int
+  return jacklib.jack_transport_locate(client, frame)
+
+def transport_query(client, pos=None): #FIXME - weird crash when using pointer(pos) (on exit only)
+  jacklib.jack_transport_query.restype = c_int
+  if (pos):
+    jacklib.jack_transport_query.argtypes = [jack_client_t, type(pointer(jack_position_t))]
+    return jacklib.jack_transport_query(client, pointer(pos))
+  else:
+    return jacklib.jack_transport_query(client, None)
+
+def get_current_transport_frame(client):
+  jacklib.jack_get_current_transport_frame.argtypes = [jack_client_t]
+  jacklib.jack_get_current_transport_frame.restype = jack_nframes_t
+  return jacklib.jack_get_current_transport_frame(client)
+
+def transport_reposition(client, pos): #FIXME - weird crash when using pointer(pos) (on exit only)
+  jacklib.jack_transport_reposition.argtypes = [jack_client_t, type(pointer(jack_position_t))]
+  jacklib.jack_transport_reposition.restype = c_int
+  return jacklib.jack_transport_reposition(client, pointer(pos))
+
+def transport_start(client):
+  jacklib.jack_transport_start.argtypes = [jack_client_t]
+  jacklib.jack_transport_start.restype = None
+  return jacklib.jack_transport_start(client)
+
+def transport_stop(client):
+  jacklib.jack_transport_stop.argtypes = [jack_client_t]
+  jacklib.jack_transport_stop.restype = None
+  return jacklib.jack_transport_stop(client)
+
+def jack_free(ptr):
+  jacklib.jack_free.argtypes = [c_void_p]
+  jacklib.jack_free.restype = None
+  return jacklib.jack_free(ptr)
+
+
+# Session Client Functions
+
+def set_session_callback(client, session_callback, arg=None):
+  global SessionCallback
+  SessionCallback = CFUNCTYPE(jack_session_event_t, c_void_p)(session_callback)
+  jacklib.jack_set_session_callback.restype = c_int
+  return jacklib.jack_set_session_callback(client, SessionCallback, arg)
+
+def session_reply(client, event):
+  jacklib.jack_session_reply.argtypes = [jack_client_t, jack_session_event_t]
+  jacklib.jack_session_reply.restype = c_int
+  return jacklib.jack_session_reply(client, event)
+
+def session_event_free(event):
+  jacklib.jack_session_event_free.argtypes = [jack_session_event_t]
+  jacklib.jack_session_event_free.restype = None
+  return jacklib.jack_session_event_free(event)
+
+def client_get_uuid(client):
+  jacklib.jack_client_get_uuid.argtypes = [jack_client_t]
+  jacklib.jack_client_get_uuid.restype = c_char_p
+  return jacklib.jack_client_get_uuid(client)
+
+def session_notify(client, target, type_, path):
+  jacklib.jack_session_notify.argtypes = [jack_client_t, c_char_p, jack_session_event_type_t, c_char_p]
+  jacklib.jack_session_notify.restype = c_int
+  return jacklib.jack_session_notify(client, target, type_, path)
+
+def session_commands_free(cmds):
+  jacklib.jack_session_commands_free.argtypes = [jack_session_command_t]
+  jacklib.jack_session_commands_free.restype = None
+  return jacklib.jack_session_commands_free(cmds)
+
+def get_uuid_for_client_name(client, client_name):
+  jacklib.jack_get_uuid_for_client_name.argtypes = [jack_client_t, c_char_p]
+  jacklib.jack_get_uuid_for_client_name.restype = c_char_p
+  return jacklib.jack_get_uuid_for_client_name(client, client_name)
+
+def get_client_name_by_uuid(client, client_uuid):
+  jacklib.jack_get_client_name_by_uuid.argtypes = [jack_client_t, c_char_p]
+  jacklib.jack_get_client_name_by_uuid.restype = c_char_p
+  return jacklib.jack_get_client_name_by_uuid(client, client_uuid)
+
+def reserve_client_name(client, name, uuid):
+  jacklib.jack_reserve_client_name.argtypes = [jack_client_t, c_char_p, c_char_p]
+  jacklib.jack_reserve_client_name.restype = c_int
+  return jacklib.jack_reserve_client_name(client, name, uuid)