Python ctypes bindings for pulseaudio (libpulse).
Project description
Python 2.X ctypes bindings for PulseAudio (libpulse), forked from pulsemixer project (which had this code bundled) to re-use this awesome stuff in other projects.
Usage
Simple example:
from pulsectl import Pulse
with Pulse('volume-increaser') as pulse:
for sink in pulse.sink_list():
pulse.volume_change_all_chans(sink, 10)
Listening for server state change events:
from pulsectl import Pulse, PulseLoopStop
with Pulse('volume-increaser') as pulse:
# print 'Event types:', ', '.join(pulse.event_types)
# print 'Event facilities:', ', '.join(pulse.event_facilities)
# print 'Event masks:', ', '.join(pulse.event_masks)
def print_events(ev):
print 'Pulse event:', ev
### Be sure to raise PulseLoopStop when event_listen() should return
# raise PulseLoopStop
pulse.event_callback_set(print_events, 'all')
pulse.event_listen()
Misc other tinkering:
>>> from pulsectl import Pulse
>>> pulse = Pulse('my-client-name')
>>> pulse.sink_list()
[<PulseSinkInfo at 7f85cfd053d0 - desc='Built-in Audio', index=0L, mute=0, name='alsa-speakers', channels=2, volumes='44.0%, 44.0%'>]
>>> pulse.sink_input_list()
[<PulseSinkInputInfo at 7fa06562d3d0 - index=181L, mute=0, name='mpv Media Player', channels=2, volumes='25.0%, 25.0%'>]
>>> pulse.source_list()
[<PulseSourceInfo at 7fcb0615d8d0 - desc='Monitor of Built-in Audio', index=0L, mute=0, name='alsa-speakers.monitor', channels=2, volumes='100.0%, 100.0%'>,
<PulseSourceInfo at 7fcb0615da10 - desc='Built-in Audio', index=1L, mute=0, name='alsa-mic', channels=2, volumes='100.0%, 100.0%'>]
>>> sink = pulse.sink_list()[0]
>>> pulse.volume_change_all_chans(sink, -10)
>>> pulse.volume_set_all_chans(sink, 50)
>>> help(pulse)
...
Current code logic is that all methods are invoked through the Pulse instance, and everything returned from these are “Pulse-Something-Info” objects - thin wrappers around C structs that describe the thing, without any methods attached.
Module is relatively new and these high-level interfaces might change in the future.
Installation
It’s a regular package for Python 2.7 (not 3.X).
Using pip is the best way:
% pip install pulsectl
If you don’t have it, use:
% easy_install pip % pip install pulsectl
Alternatively (see also pip2014.com and pip install guide):
% curl https://raw.github.com/pypa/pip/master/contrib/get-pip.py | python2 % pip install pulsectl
Or, if you absolutely must:
% easy_install pulsectl
But, you really shouldn’t do that.
Current-git version can be installed like this:
% pip install 'git+https://github.com/mk-fg/python-pulse-control.git#egg=pulsectl'
Note that to install stuff in system-wide PATH and site-packages, elevated privileges are often required. Use “install –user”, ~/.pydistutils.cfg or virtualenv to do unprivileged installs into custom paths.
Links
pulsemixer - initial source for this project (embedded in the tool).
libpulseaudio - low-level bindings module, auto-generated from pulseaudio header files.
Branches there have bindings for different (newer) pulseaudio versions.
Release history Release notifications | RSS feed
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