git.maemo.org Git - monky/blob - src/audacious.c

   1 /* $Id$ */
   2
   3 /* audacious.c:  conky support for audacious music player
   4  *
   5  * Copyright (C) 2005-2007 Philip Kovacs pkovacs@users.sourceforge.net
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301
  20  * USA. */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <glib.h>
  27 #ifndef AUDACIOUS_LEGACY
  28 #include <glib-object.h>
  29 #include <audacious/audctrl.h>
  30 #include <audacious/dbus.h>
  31 #else
  32 #include <audacious/beepctrl.h>
  33 #define audacious_remote_is_running(x)                          \
  34         xmms_remote_is_running(x)
  35 #define audacious_remote_is_paused(x)                           \
  36         xmms_remote_is_paused(x)
  37 #define audacious_remote_is_playing(x)                          \
  38         xmms_remote_is_playing(x)
  39 #define audacious_remote_get_playlist_pos(x)            \
  40         xmms_remote_get_playlist_pos(x)
  41 #define audacious_remote_get_playlist_title(x, y)       \
  42         xmms_remote_get_playlist_title(x, y)
  43 #define audacious_remote_get_playlist_time(x, y)        \
  44         xmms_remote_get_playlist_time(x, y)
  45 #define audacious_remote_get_output_time(x)                     \
  46         xmms_remote_get_output_time(x)
  47 #define audacious_remote_get_info(w, x, y, z)           \
  48         xmms_remote_get_info(w, x, y, z)
  49 #define audacious_remote_get_playlist_file(x, y)        \
  50         xmms_remote_get_playlist_file(x, y)
  51 #define audacious_remote_get_playlist_length(x)         \
  52         xmms_remote_get_playlist_length(x)
  53 #endif
  54
  55 #include "conky.h"
  56 #include "audacious.h"
  57 #include "timed_thread.h"
  58
  59 /* access to this item array is synchronized */
  60 static audacious_t audacious_items;
  61
  62 /* -----------------------------------------
  63  * Conky update function for audacious data.
  64  * ----------------------------------------- */
  65 void update_audacious(void)
  66 {
  67         /* The worker thread is updating audacious_items array asynchronously
  68          * to the main conky thread.
  69          * We merely copy the audacious_items array into the main thread's info
  70          * structure when the main thread's update cycle fires. */
  71         if (!info.audacious.p_timed_thread) {
  72                 if (create_audacious_thread() != 0) {
  73                         CRIT_ERR("unable to create audacious thread!");
  74                 }
  75                 timed_thread_register(info.audacious.p_timed_thread,
  76                         &info.audacious.p_timed_thread);
  77         }
  78
  79         timed_thread_lock(info.audacious.p_timed_thread);
  80         memcpy(&info.audacious.items, audacious_items, sizeof(audacious_items));
  81         timed_thread_unlock(info.audacious.p_timed_thread);
  82 }
  83
  84 /* ---------------------------------------------------------
  85  * Create a worker thread for audacious media player status.
  86  *
  87  * Returns 0 on success, -1 on error.
  88  * --------------------------------------------------------- */
  89 int create_audacious_thread(void)
  90 {
  91         if (!info.audacious.p_timed_thread) {
  92                 info.audacious.p_timed_thread =
  93                         timed_thread_create(audacious_thread_func, NULL,
  94                         info.music_player_interval * 1000000);
  95         }
  96
  97         if (!info.audacious.p_timed_thread
  98                         || timed_thread_run(info.audacious.p_timed_thread)) {
  99                 return -1;
 100         }
 101
 102         return 0;
 103 }
 104
 105 /* ---------------------------------------
 106  * Destroy audacious player status thread.
 107  *
 108  * Returns 0 on success, -1 on error.
 109  * --------------------------------------- */
 110 int destroy_audacious_thread(void)
 111 {
 112         /* Is a worker is thread running? If not, no error. */
 113         if (!info.audacious.p_timed_thread) {
 114                 return 0;
 115         }
 116
 117         timed_thread_destroy(info.audacious.p_timed_thread,
 118                 &info.audacious.p_timed_thread);
 119
 120         return 0;
 121 }
 122
 123 /* ---------------------------------------------------
 124  * Worker thread function for audacious data sampling.
 125  * --------------------------------------------------- */
 126 void *audacious_thread_func(void *pvoid)
 127 {
 128         static audacious_t items;
 129         gint playpos, frames, length;
 130         gint rate, freq, chans;
 131         gchar *psong, *pfilename;
 132
 133 #ifndef AUDACIOUS_LEGACY
 134         DBusGProxy *session = NULL;
 135         DBusGConnection *connection = NULL;
 136 #else
 137         gint session;
 138 #endif
 139
 140         pvoid = (void *) pvoid; /* avoid warning */
 141         session = 0;
 142         psong = NULL;
 143         pfilename = NULL;
 144
 145 #ifndef AUDACIOUS_LEGACY
 146         g_type_init();
 147         connection = dbus_g_bus_get(DBUS_BUS_SESSION, NULL);
 148         if (!connection) {
 149                 CRIT_ERR("unable to establish dbus connection");
 150         }
 151         session = dbus_g_proxy_new_for_name(connection, AUDACIOUS_DBUS_SERVICE,
 152                         AUDACIOUS_DBUS_PATH, AUDACIOUS_DBUS_INTERFACE);
 153         if (!session) {
 154                 CRIT_ERR("unable to create dbus proxy");
 155         }
 156 #endif /* AUDACIOUS_LEGACY */
 157
 158         /* Loop until the main thread resets the runnable signal. */
 159         while (1) {
 160
 161                 do {
 162                         if (!audacious_remote_is_running(session)) {
 163                                 memset(&items, 0, sizeof(items));
 164                                 strcpy(items[AUDACIOUS_STATUS], "Not running");
 165                                 break;
 166                         }
 167
 168                         /* Player status */
 169                         if (audacious_remote_is_paused(session)) {
 170                                 strcpy(items[AUDACIOUS_STATUS], "Paused");
 171                         } else if (audacious_remote_is_playing(session)) {
 172                                 strcpy(items[AUDACIOUS_STATUS], "Playing");
 173                         } else {
 174                                 strcpy(items[AUDACIOUS_STATUS], "Stopped");
 175                         }
 176
 177                         /* Current song title */
 178                         playpos = audacious_remote_get_playlist_pos(session);
 179                         psong = audacious_remote_get_playlist_title(session, playpos);
 180                         if (psong) {
 181                                 strncpy(items[AUDACIOUS_TITLE], psong,
 182                                                 sizeof(items[AUDACIOUS_TITLE]) - 1);
 183                                 g_free(psong);
 184                                 psong = NULL;
 185                         }
 186
 187                         /* Current song length as MM:SS */
 188                         frames = audacious_remote_get_playlist_time(session, playpos);
 189                         length = frames / 1000;
 190                         snprintf(items[AUDACIOUS_LENGTH], sizeof(items[AUDACIOUS_LENGTH]) - 1,
 191                                         "%d:%.2d", length / 60, length % 60);
 192
 193                         /* Current song length in seconds */
 194                         snprintf(items[AUDACIOUS_LENGTH_SECONDS],
 195                                         sizeof(items[AUDACIOUS_LENGTH_SECONDS]) - 1, "%d", length);
 196
 197                         /* Current song position as MM:SS */
 198                         frames = audacious_remote_get_output_time(session);
 199                         length = frames / 1000;
 200                         snprintf(items[AUDACIOUS_POSITION],
 201                                         sizeof(items[AUDACIOUS_POSITION]) - 1, "%d:%.2d", length / 60,
 202                                         length % 60);
 203
 204                         /* Current song position in seconds */
 205                         snprintf(items[AUDACIOUS_POSITION_SECONDS],
 206                                         sizeof(items[AUDACIOUS_POSITION_SECONDS]) - 1, "%d", length);
 207
 208                         /* Current song bitrate */
 209                         audacious_remote_get_info(session, &rate, &freq, &chans);
 210                         snprintf(items[AUDACIOUS_BITRATE], sizeof(items[AUDACIOUS_BITRATE]) - 1,
 211                                         "%d", rate);
 212
 213                         /* Current song frequency */
 214                         snprintf(items[AUDACIOUS_FREQUENCY],
 215                                         sizeof(items[AUDACIOUS_FREQUENCY]) - 1, "%d", freq);
 216
 217                         /* Current song channels */
 218                         snprintf(items[AUDACIOUS_CHANNELS],
 219                                         sizeof(items[AUDACIOUS_CHANNELS]) - 1, "%d", chans);
 220
 221                         /* Current song filename */
 222                         pfilename = audacious_remote_get_playlist_file(session, playpos);
 223                         if (pfilename) {
 224                                 strncpy(items[AUDACIOUS_FILENAME], pfilename,
 225                                                 sizeof(items[AUDACIOUS_FILENAME]) - 1);
 226                                 g_free(pfilename);
 227                                 pfilename = NULL;
 228                         }
 229
 230                         /* Length of the Playlist (number of songs) */
 231                         length = audacious_remote_get_playlist_length(session);
 232                         snprintf(items[AUDACIOUS_PLAYLIST_LENGTH],
 233                                         sizeof(items[AUDACIOUS_PLAYLIST_LENGTH]) - 1, "%d", length);
 234
 235                         /* Playlist position (index of song) */
 236                         snprintf(items[AUDACIOUS_PLAYLIST_POSITION],
 237                                         sizeof(items[AUDACIOUS_PLAYLIST_POSITION]) - 1, "%d", playpos + 1);
 238                 } while (0);
 239                 /* Deliver the refreshed items array to audacious_items. */
 240                 timed_thread_lock(info.audacious.p_timed_thread);
 241                 memcpy(&audacious_items, items, sizeof(items));
 242                 timed_thread_unlock(info.audacious.p_timed_thread);
 243
 244                 if (timed_thread_test(info.audacious.p_timed_thread)) {
 245 #ifndef AUDACIOUS_LEGACY
 246                         /* release reference to dbus proxy */
 247                         g_object_unref(session);
 248 #endif
 249                         timed_thread_exit(info.audacious.p_timed_thread);
 250                 }
 251         }
 252 }