git.maemo.org Git - nqaap/blob - src/opt/Nqa-Audiobook-player/SimpleOSSOPlayer.py

   1 import os
   2 import logging
   3
   4 import dbus
   5
   6 import gtk_toolbox
   7
   8
   9 _moduleLogger = logging.getLogger(__name__)
  10
  11
  12 class SimplePlayer(object):
  13
  14     SERVICE_NAME         = "com.nokia.osso_media_server"
  15     OBJECT_PATH          = "/com/nokia/osso_media_server"
  16     AUDIO_INTERFACE_NAME = "com.nokia.osso_media_server.music"
  17
  18     def __init__(self, on_playing_done = None):
  19         #Fields
  20         self.has_file = False
  21         self.playing = False
  22         self.__elapsed = 0
  23
  24         #Event callbacks
  25         self.on_playing_done = on_playing_done
  26
  27         session_bus = dbus.SessionBus()
  28
  29         # Get the osso-media-player proxy object
  30         oms_object = session_bus.get_object(
  31             self.SERVICE_NAME,
  32             self.OBJECT_PATH,
  33             introspect=False,
  34             follow_name_owner_changes=True,
  35         )
  36         # Use the audio interface
  37         oms_audio_interface = dbus.Interface(
  38             oms_object,
  39             self.AUDIO_INTERFACE_NAME,
  40         )
  41         self._audioProxy = oms_audio_interface
  42
  43         self._audioProxy.connect_to_signal("state_changed", self._on_state_changed)
  44         self._audioProxy.connect_to_signal("end_of_stream", self._on_end_of_stream)
  45
  46         error_signals = [
  47             "no_media_selected",
  48             "file_not_found",
  49             "type_not_found",
  50             "unsupported_type",
  51             "gstreamer",
  52             "dsp",
  53             "device_unavailable",
  54             "corrupted_file",
  55             "out_of_memory",
  56             "audio_codec_not_supported",
  57         ]
  58         for error in error_signals:
  59             self._audioProxy.connect_to_signal(error, self._on_error)
  60
  61     @gtk_toolbox.log_exception(_moduleLogger)
  62     def _on_error(self, *args):
  63         self.playing = False
  64
  65     @gtk_toolbox.log_exception(_moduleLogger)
  66     def _on_end_of_stream(self, *args):
  67         self.playing = False
  68         if self.on_playing_done is not None: # event callback
  69             self.on_playing_done(self)
  70
  71     @gtk_toolbox.log_exception(_moduleLogger)
  72     def _on_state_changed(self, state):
  73         _moduleLogger.info("State: %s", state)
  74
  75     def set_file(self, file):
  76         _moduleLogger.info("set file: %s", file)
  77         if os.path.isfile(file):
  78             if self.playing:
  79                 self.stop()
  80
  81             uri = "file://" + file
  82             self._audioProxy.set_media_location(uri)
  83             self.has_file = True
  84         else:
  85             _moduleLogger.error("File: %s not found" % file)
  86
  87     def play(self):
  88         _moduleLogger.info("Started playing")
  89         self._audioProxy.play()
  90         self.playing = True
  91
  92     def stop(self):
  93         self._audioProxy.stop()
  94         self.playing = False
  95         _moduleLogger.info("Stopped playing")
  96
  97     def elapsed(self):
  98         pos_info = self._audioProxy.get_position()
  99         if isinstance(pos_info, tuple):
 100             pos, _ = pos_info
 101             return pos
 102         else:
 103             return 0
 104
 105     def duration(self):
 106         pos_info = self._audioProxy.get_position()
 107         if isinstance(pos_info, tuple):
 108             _, dur = pos_info
 109             return dur
 110         else:
 111             return 0
 112
 113     def seek_time(self, ns):
 114         _moduleLogger.debug("Seeking to: %s", ns)
 115         self._audioProxy.seek( dbus.Int32(1), dbus.Int32(ns) )