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#!/usr/bin/python
from __future__ import print_function
import os
import sys
import dbus
import dbus.service
import dbus.mainloop.glib
import gobject
class Player(dbus.service.Object):
@dbus.service.method("org.bluez.MediaPlayer",
in_signature="", out_signature="")
def Release(self):
print("Release")
mainloop.quit()
@dbus.service.method("org.bluez.MediaPlayer",
in_signature="sv", out_signature="")
def SetProperty(self, key, value):
print("SetProperty (%s, %s)" % (key, value), file=sys.stderr)
return
@dbus.service.signal("org.bluez.MediaPlayer", signature="sv")
def PropertyChanged(self, setting, value):
"""PropertyChanged(setting, value)
Send a PropertyChanged signal. 'setting' and 'value' are
string parameters as specified in doc/media-api.txt.
"""
pass
@dbus.service.signal("org.bluez.MediaPlayer", signature="a{sv}")
def TrackChanged(self, metadata):
"""TrackChanged(metadata)
Send a TrackChanged signal. 'metadata' parameter is a dictionary,
with values as defined in doc/media-api.txt.
"""
pass
def help(self, func):
help(self.__class__.__dict__[func])
class InputHandler:
commands = { 'TrackChanged': '(metadata)',
'PropertyChanged': '(key, value)',
'help': '(cmd)' }
def __init__(self, player):
self.player = player
print('\n\nAvailable commands:')
for cmd in self.commands:
print('\t', cmd, self.commands[cmd], sep='')
print("\nUse python syntax to pass arguments to available methods.\n" \
"E.g.: TrackChanged({'Title': 'My title', 'Album': 'my album' })")
self.prompt()
def prompt(self):
print('\n>>> ', end='')
sys.stdout.flush()
def handle(self, fd, condition):
s = os.read(fd.fileno(), 1024).strip()
try:
cmd = s[:s.find('(')]
if not cmd in self.commands:
print("Unknown command ", cmd)
except ValueError:
print("Malformed command")
return True
try:
exec "self.player.%s" % s
except Exception as e:
print(e)
pass
self.prompt()
return True
if __name__ == '__main__':
dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
bus = dbus.SystemBus()
manager = dbus.Interface(bus.get_object("org.bluez", "/"),
"org.bluez.Manager")
if len(sys.argv) > 1:
path = manager.FindAdapter(sys.argv[1])
else:
path = manager.DefaultAdapter()
media = dbus.Interface(bus.get_object("org.bluez", path),
"org.bluez.Media")
path = "/test/player"
player = Player(bus, path)
mainloop = gobject.MainLoop()
properties = dbus.Dictionary({ "Equalizer" : "off",
"Repeat" : "off",
"Shuffle" : "off",
"Scan" : "off",
"Status" : "playing",
"Position" : dbus.UInt32(0) }, signature="sv")
metadata = dbus.Dictionary({ "Title" : "Title",
"Artist" : "Artist",
"Album" : "Album",
"Genre" : "Genre",
"NumberOfTracks" : dbus.UInt32(10),
"Number" : dbus.UInt32(1),
"Duration" : dbus.UInt32(10000) }, signature="sv")
print('Register media player with:\n\tProperties: %s\n\tMetadata: %s' \
% (properties, metadata))
handler = InputHandler(player)
gobject.io_add_watch(sys.stdin, gobject.IO_IN, handler.handle)
media.RegisterPlayer(dbus.ObjectPath(path), properties, metadata)
mainloop.run()
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