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#!/usr/bin/python
# vi: et sw=2
#
# lib_pulseaudio.py
# Copyright (C) 2009 Harry Karvonen
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
#
# Provides pulseaudio interface for python
#
# Author: Harry Karvonen <harry.karvonen@gmail.com>
#
from ctypes import *
pulse = CDLL("libpulse.so.0");
################################################################################
#
# Constrants
#
################################################################################
PA_CHANNELS_MAX = 32
PA_VOLUME_NORM = 0x10000
################################################################################
#
# Structs
#
################################################################################
class PA_IO_EVENT(Structure):
_fields_ = [("_opaque_struct", c_int)]
class PA_MAINLOOP(Structure):
_fields_ = [("_opaque_struct", c_int)]
class PA_MAINLOOP_API(Structure):
_fields_ = [("_opaque_struct", c_int)]
class PA_SIGNAL_EVENT(Structure):
_fields_ = [("_opaque_struct", c_int)]
class PA_CONTEXT(Structure):
_fields_ = [("_opaque_struct", c_int)]
class PA_OPERATION(Structure):
_fields_ = [("_opaque_struct", c_int)]
class PA_SAMPLE_SPEC(Structure):
_fields_ = [
("format", c_int), # FIXME check this
("rate", c_uint32),
("channels", c_uint32)
]
class PA_CHANNEL_MAP(Structure):
_fields_ = [
("channels", c_uint8),
("map", c_int * PA_CHANNELS_MAX)
]
class PA_CVOLUME(Structure):
_fields_ = [
("channels", c_uint8),
("values", c_uint32 * PA_CHANNELS_MAX)
]
PA_USEC_T = c_uint64
class PA_SINK_INPUT_INFO(Structure):
__slots__ = [
'index',
'name',
'owner_module',
'client',
'sink',
'sample_spec',
'channel_map',
'volume',
'buffer_usec',
'sink_usec',
'resample_method',
'driver',
'mute',
]
_fields_ = [
("index", c_uint32),
("name", c_char_p),
("owner_module", c_uint32),
("client", c_uint32),
("sink", c_uint32),
("sample_spec", PA_SAMPLE_SPEC),
("channel_map", PA_CHANNEL_MAP),
("volume", PA_CVOLUME),
("buffer_usec", PA_USEC_T),
("sink_usec", PA_USEC_T),
("resample_method", c_char_p),
("driver", c_char_p),
("mute", c_int)
#("proplist", POINTER(c_int))
]
class PA_SINK_INFO(Structure):
_fields_ = [
("name", c_char_p),
("index", c_uint32),
("description", c_char_p),
("sample_spec", PA_SAMPLE_SPEC),
("channel_map", PA_CHANNEL_MAP),
("owner_module", c_uint32),
("volume", PA_CVOLUME),
("mute", c_int),
("monitor_source", c_uint32),
("monitor_source_name", c_char_p),
("latency", PA_USEC_T),
("driver", c_char_p),
("flags", c_int),
("proplist", POINTER(c_int)),
("configured_latency", PA_USEC_T)
]
class PA_SOURCE_OUTPUT_INFO(Structure):
__slots__ = [
'index',
'name',
'owner_module',
'client',
'source',
'sample_spec',
'channel_map',
'volume',
'buffer_usec',
'sink_usec',
'resample_method',
'driver',
'mute',
]
_fields_ = [
("index", c_uint32),
("name", c_char_p),
("owner_module", c_uint32),
("client", c_uint32),
("source", c_uint32),
("sample_spec", PA_SAMPLE_SPEC),
("channel_map", PA_CHANNEL_MAP),
("volume", PA_CVOLUME),
("buffer_usec", PA_USEC_T),
("sink_usec", PA_USEC_T),
("resample_method", c_char_p),
("driver", c_char_p),
("mute", c_int)
#("proplist", POINTER(c_int))
]
class PA_SOURCE_INFO(Structure):
_fields_ = [
("name", c_char_p),
("index", c_uint32),
("description", c_char_p),
("sample_spec", PA_SAMPLE_SPEC),
("channel_map", PA_CHANNEL_MAP),
("owner_module", c_uint32),
("volume", PA_CVOLUME),
("mute", c_int),
("monitor_of_sink", c_uint32),
("monitor_of_sink_name", c_char_p),
("latency", PA_USEC_T),
("driver", c_char_p),
("flags", c_int),
("proplist", POINTER(c_int)),
("configured_latency", PA_USEC_T)
]
class PA_CLIENT_INFO(Structure):
_fields_ = [
("index", c_uint32),
("name", c_char_p),
("owner_module", c_uint32),
("driver", c_char_p)
#("proplist", POINTER(c_int))
]
################################################################################
#
# Callback types
#
################################################################################
#PA_IO_EVENT_CB_T = CFUNCTYPE(c_void_p,
# POINTER(PA_MAINLOOP_API),
# POINTER(PA_IO_EVENT),
# c_int,
# c_int,
# c_void_p)
# SIGNAL
PA_SIGNAL_CB_T = CFUNCTYPE(c_void_p,
POINTER(PA_MAINLOOP_API),
POINTER(PA_SIGNAL_EVENT),
c_int,
c_void_p)
# STATE
PA_STATE_CB_T = CFUNCTYPE(c_int,
POINTER(PA_CONTEXT),
c_void_p)
# CLIENT
PA_CLIENT_INFO_CB_T = CFUNCTYPE(c_void_p,
POINTER(PA_CONTEXT),
POINTER(PA_CLIENT_INFO),
c_int,
c_void_p)
# SINK INPUT
PA_SINK_INPUT_INFO_CB_T = CFUNCTYPE(c_int, #FIXME wrong type
POINTER(PA_CONTEXT),
POINTER(PA_SINK_INPUT_INFO),
c_int,
c_void_p)
# SINK
PA_SINK_INFO_CB_T = CFUNCTYPE(c_int, #FIXME wrong type
POINTER(PA_CONTEXT),
POINTER(PA_SINK_INFO),
c_int,
c_void_p)
# SOURCE OUTPUT
PA_SOURCE_OUTPUT_INFO_CB_T = CFUNCTYPE(c_int, #FIXME wrong type
POINTER(PA_CONTEXT),
POINTER(PA_SOURCE_OUTPUT_INFO),
c_int,
c_void_p)
# SOURCE
PA_SOURCE_INFO_CB_T = CFUNCTYPE(c_int, #FIXME wrong type
POINTER(PA_CONTEXT),
POINTER(PA_SOURCE_INFO),
c_int,
c_void_p)
# CONTEXT
PA_CONTEXT_DRAIN_CB_T = CFUNCTYPE(c_void_p,
POINTER(PA_CONTEXT),
c_void_p)
PA_CONTEXT_SUCCESS_CB_T = CFUNCTYPE(c_void_p,
POINTER(PA_CONTEXT),
c_int,
c_void_p)
PA_CONTEXT_SUBSCRIBE_CB_T = CFUNCTYPE(c_void_p,
POINTER(PA_CONTEXT),
c_int,
c_uint32,
c_void_p)
################################################################################
#
# Functions
#
################################################################################
#
# pa_strerror
pa_strerror = pulse.pa_strerror
pa_strerror.restype = c_char_p
pa_strerror.argtypes = [
c_int
]
#
# pa_mainloop_*
pa_mainloop_new = pulse.pa_mainloop_new
pa_mainloop_new.restype = POINTER(PA_MAINLOOP)
pa_mainloop_new.argtypes = [
]
pa_mainloop_get_api = pulse.pa_mainloop_get_api
pa_mainloop_get_api.restype = POINTER(PA_MAINLOOP_API)
pa_mainloop_get_api.argtypes = [
POINTER(PA_MAINLOOP)
]
pa_mainloop_run = pulse.pa_mainloop_run
pa_mainloop_run.restype = c_int
pa_mainloop_run.argtypes = [
POINTER(PA_MAINLOOP),
POINTER(c_int)
]
pa_mainloop_iterate = pulse.pa_mainloop_iterate
pa_mainloop_iterate.restype = c_int
pa_mainloop_iterate.argtypes = [
POINTER(PA_MAINLOOP),
c_int,
POINTER(c_int)
]
pa_mainloop_quit = pulse.pa_mainloop_quit
pa_mainloop_quit.restype = c_int
pa_mainloop_quit.argtypes = [
POINTER(PA_MAINLOOP),
c_int
]
pa_mainloop_dispatch = pulse.pa_mainloop_dispatch
pa_mainloop_dispatch.restype = c_int
pa_mainloop_dispatch.argtypes = [
POINTER(PA_MAINLOOP)
]
pa_mainloop_free = pulse.pa_mainloop_run
pa_mainloop_free.restype = c_int
pa_mainloop_free.argtypes = [
POINTER(PA_MAINLOOP)
]
#
# pa_signal_*
pa_signal_init = pulse.pa_signal_init
pa_signal_init.restype = c_int
pa_signal_init.argtypes = [
POINTER(PA_MAINLOOP_API)
]
pa_signal_new = pulse.pa_signal_new
pa_signal_new.restype = POINTER(PA_SIGNAL_EVENT)
pa_signal_new.argtypes = [
c_int,
PA_SIGNAL_CB_T,
c_void_p
]
#
# pa_context_*
pa_context_errno = pulse.pa_context_errno
pa_context_errno.restype = c_int
pa_context_errno.argtypes = [
POINTER(PA_CONTEXT)
]
pa_context_new = pulse.pa_context_new
pa_context_new.restype = POINTER(PA_CONTEXT)
pa_context_new.argtypes = [
POINTER(PA_MAINLOOP_API),
c_char_p
]
pa_context_set_state_callback = pulse.pa_context_set_state_callback
pa_context_set_state_callback.restype = None
pa_context_set_state_callback.argtypes = [
POINTER(PA_CONTEXT),
PA_STATE_CB_T,
c_void_p
]
pa_context_connect = pulse.pa_context_connect
pa_context_connect.restype = c_int
pa_context_connect.argtypes = [
POINTER(PA_CONTEXT),
c_char_p,
c_int, #FIXME | isn't correct
POINTER(c_int)
]
pa_context_get_state = pulse.pa_context_get_state
pa_context_get_state.restype = c_int;
pa_context_get_state.argtypes = [
POINTER(PA_CONTEXT)
]
pa_context_drain = pulse.pa_context_drain
pa_context_drain.restype = POINTER(PA_OPERATION)
pa_context_drain.argtypes = [
POINTER(PA_CONTEXT),
PA_CONTEXT_DRAIN_CB_T,
c_void_p
]
pa_context_disconnect = pulse.pa_context_disconnect
pa_context_disconnect.restype = c_int;
pa_context_disconnect.argtypes = [
POINTER(PA_CONTEXT)
]
#
# pa_context_*_sink_*
pa_context_get_sink_input_info_list = pulse.pa_context_get_sink_input_info_list
pa_context_get_sink_input_info_list.restype = POINTER(c_int)
pa_context_get_sink_input_info_list.argtypes = [
POINTER(PA_CONTEXT),
PA_SINK_INPUT_INFO_CB_T,
c_void_p
]
pa_context_get_sink_info_list = pulse.pa_context_get_sink_info_list
pa_context_get_sink_info_list.restype = POINTER(c_int)
pa_context_get_sink_info_list.argtypes = [
POINTER(PA_CONTEXT),
PA_SINK_INFO_CB_T,
c_void_p
]
pa_context_set_sink_mute_by_index = pulse.pa_context_set_sink_mute_by_index
pa_context_set_sink_mute_by_index.restype = POINTER(c_int)
pa_context_set_sink_mute_by_index.argtypes = [
POINTER(PA_CONTEXT),
c_uint32,
c_int,
PA_CONTEXT_SUCCESS_CB_T,
c_void_p
]
pa_context_set_sink_input_mute = pulse.pa_context_set_sink_input_mute
pa_context_set_sink_input_mute.restype = POINTER(c_int)
pa_context_set_sink_input_mute.argtypes = [
POINTER(PA_CONTEXT),
c_uint32,
c_int,
PA_CONTEXT_SUCCESS_CB_T,
c_void_p
]
pa_context_set_sink_volume_by_index = pulse.pa_context_set_sink_volume_by_index
pa_context_set_sink_volume_by_index.restype = POINTER(c_int)
pa_context_set_sink_volume_by_index.argtypes = [
POINTER(PA_CONTEXT),
c_uint32,
POINTER(PA_CVOLUME),
PA_CONTEXT_SUCCESS_CB_T,
c_void_p
]
pa_context_set_sink_input_volume = pulse.pa_context_set_sink_input_volume
pa_context_set_sink_input_volume.restype = POINTER(c_int)
pa_context_set_sink_input_volume.argtypes = [
POINTER(PA_CONTEXT),
c_uint32,
POINTER(PA_CVOLUME),
PA_CONTEXT_SUCCESS_CB_T,
c_void_p
]
#
# pa_context_*_source_*
pa_context_get_source_output_info_list = pulse.pa_context_get_source_output_info_list
pa_context_get_source_output_info_list.restype = POINTER(c_int)
pa_context_get_source_output_info_list.argtypes = [
POINTER(PA_CONTEXT),
PA_SOURCE_OUTPUT_INFO_CB_T,
c_void_p
]
pa_context_get_source_info_list = pulse.pa_context_get_source_info_list
pa_context_get_source_info_list.restype = POINTER(c_int)
pa_context_get_source_info_list.argtypes = [
POINTER(PA_CONTEXT),
PA_SOURCE_INFO_CB_T,
c_void_p
]
pa_context_set_source_mute_by_index = pulse.pa_context_set_source_mute_by_index
pa_context_set_source_mute_by_index.restype = POINTER(c_int)
pa_context_set_source_mute_by_index.argtypes = [
POINTER(PA_CONTEXT),
c_uint32,
c_int,
PA_CONTEXT_SUCCESS_CB_T,
c_void_p
]
pa_context_set_source_volume_by_index = pulse.pa_context_set_source_volume_by_index
pa_context_set_source_volume_by_index.restype = POINTER(c_int)
pa_context_set_source_volume_by_index.argtypes = [
POINTER(PA_CONTEXT),
c_uint32,
POINTER(PA_CVOLUME),
PA_CONTEXT_SUCCESS_CB_T,
c_void_p
]
#
# pa_context_*_client_*
pa_context_get_client_info_list = pulse.pa_context_get_client_info_list
pa_context_get_client_info_list.restype = POINTER(c_int)
pa_context_get_client_info_list.argtypes = [
POINTER(PA_CONTEXT),
PA_CLIENT_INFO_CB_T,
c_void_p
]
pa_context_get_client_info = pulse.pa_context_get_client_info
pa_context_get_client_info.restype = POINTER(c_int)
pa_context_get_client_info.argtypes = [
POINTER(PA_CONTEXT),
c_uint32,
PA_CLIENT_INFO_CB_T,
c_void_p
]
#
# pa_context_*_subscribe*
pa_context_set_subscribe_callback = pulse.pa_context_set_subscribe_callback
pa_context_set_subscribe_callback.restype = c_int
pa_context_set_subscribe_callback.argtypes = [
POINTER(PA_CONTEXT),
PA_CONTEXT_SUBSCRIBE_CB_T,
c_void_p
]
pa_context_subscribe = pulse.pa_context_subscribe
pa_context_subscribe.restype = POINTER(PA_OPERATION)
pa_context_subscribe.argtypes = [
POINTER(PA_CONTEXT),
c_int,
PA_CONTEXT_SUCCESS_CB_T,
c_void_p
]
#
# pa_operation_*
pa_operation_unref = pulse.pa_operation_unref
pa_operation_unref.restype = c_int
pa_operation_unref.argtypes = [
POINTER(PA_OPERATION)
]
|
