src/audio.vala

   1 /*
   2  * audio - audio resource for zavai
   3  *
   4  * Copyright (C) 2009--2010  Enrico Zini <enrico@enricozini.org>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 using GLib;
  22
  23 namespace zavai {
  24 namespace audio {
  25
  26 public class Audio: zavai.Service
  27 {
  28     /*
  29        protected dynamic DBus.Object audiodev;
  30        protected dynamic DBus.Object vibdev;
  31    */
  32
  33     public Audio()
  34     {
  35         Object(name: "audio");
  36
  37 /*
  38         audiodev = zavai.registry.sbus.get_object(
  39                 "org.freesmartphone.odeviced",
  40                 "/org/freesmartphone/Device/Audio",
  41                 "org.freesmartphone.Device.Audio");
  42         vibdev = zavai.registry.sbus.get_object(
  43                 "org.freesmartphone.odeviced",
  44                 "/org/freesmartphone/Device/LED/neo1973_vibrator",
  45                 "org.freesmartphone.Device.LED");
  46 */
  47         clock.alarm_trigger_queue.triggered += on_alarm_trigger;
  48         clock.alarm_trigger_queue.acked += on_alarm_done;
  49         clock.alarm_trigger_queue.canceled += on_alarm_done;
  50     }
  51
  52     public void on_alarm_trigger(clock.AlarmTriggerInfo info)
  53     {
  54         zavai.log.debug("Make noise for alarm");
  55         if (zavai.led.vibrator != null)
  56         {
  57             var state = new zavai.led.LedState("alarm");
  58             state.set_blink(255);
  59             zavai.led.vibrator.push_state(state);
  60         }
  61         soundplayer.play(config.ringtone_alarm, true);
  62     }
  63
  64     public void on_alarm_done(clock.AlarmTriggerInfo info)
  65     {
  66         zavai.log.debug("Stop noise for alarm");
  67         if (zavai.led.vibrator != null)
  68             zavai.led.vibrator.pop_state("alarm");
  69         soundplayer.stop();
  70     }
  71 }
  72
  73 public class Player: zavai.Resource, Object
  74 {
  75     protected Gst.Element player;
  76     protected bool playing;
  77     protected Player slave;
  78     protected Player master;
  79     protected bool loop;
  80     protected string uri;
  81     public signal void state_changed(Gst.State new_state);
  82
  83     public Player()
  84     {
  85         slave = null;
  86         master = null;
  87         player = Gst.ElementFactory.make("playbin", null);
  88         playing = false;
  89         loop = false;
  90         var bus = player.get_bus();
  91         bus.add_signal_watch();
  92         bus.message += on_message;
  93     }
  94
  95     public void set_slave(Player player)
  96     {
  97         slave = player;
  98         slave.master = this;
  99     }
 100
 101     public void play(string uri, bool loop = false)
 102     {
 103 stderr.printf("Playing %s\n", uri);
 104         this.uri = uri;
 105
 106         if (slave != null && slave.playing)
 107             slave.pause();
 108
 109         player.set_property("uri", uri);
 110         player.set_state(master != null && master.playing ? Gst.State.PAUSED : Gst.State.PLAYING);
 111         playing = true;
 112         this.loop = loop;
 113     }
 114
 115     public Gst.State get_state()
 116     {
 117         Gst.State state;
 118         Gst.State pending;
 119
 120         player.get_state(out state, out pending, (Gst.ClockType)Gst.CLOCK_TIME_NONE);
 121
 122         return state;
 123     }
 124
 125     public void pause()
 126     {
 127         player.set_state(Gst.State.PAUSED);
 128         state_changed(Gst.State.PAUSED);
 129     }
 130
 131     public void resume()
 132     {
 133         player.set_state(Gst.State.PLAYING);
 134         state_changed(Gst.State.PLAYING);
 135     }
 136
 137     public void restart()
 138     {
 139         player.seek_simple(Gst.Format.TIME, Gst.SeekFlags.FLUSH | Gst.SeekFlags.KEY_UNIT, 0);
 140         player.set_state(Gst.State.PLAYING);
 141         state_changed(Gst.State.PLAYING);
 142     }
 143
 144     public void stop()
 145     {
 146         playing = false;
 147         player.set_state(Gst.State.NULL);
 148         state_changed(Gst.State.NULL);
 149
 150         // Resume slave after we are done
 151         if (slave != null && slave.playing)
 152             slave.resume();
 153     }
 154
 155     protected void on_message(Gst.Message message)
 156     {
 157         if (message.type == Gst.MessageType.EOS)
 158         {
 159             if (loop)
 160                 restart();
 161             else
 162                 stop();
 163         }
 164     }
 165
 166     public void shutdown()
 167     {
 168         stop();
 169     }
 170 }
 171
 172 public Audio audio = null;
 173 public Player musicplayer = null;
 174 public Player soundplayer = null;
 175
 176 public void init()
 177 {
 178     audio = new Audio();
 179     musicplayer = new Player();
 180     soundplayer = new Player();
 181     soundplayer.set_slave(musicplayer);
 182     zavai.registry.register(musicplayer);
 183     zavai.registry.register(soundplayer);
 184 }
 185
 186 }
 187 }