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

   1 /* audacious.c:  conky support for audacious music player
   2  *
   3  * Copyright (C) 2005-2007 Philip Kovacs pkovacs@users.sourceforge.net
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301
  18  * USA. */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #include <config.h>
  22 #endif
  23
  24 #include <glib.h>
  25 #ifndef AUDACIOUS_LEGACY
  26 #include <glib-object.h>
  27 #include <audacious/audctrl.h>
  28 #include <audacious/dbus.h>
  29 #else
  30 #include <audacious/beepctrl.h>
  31 #define audacious_remote_is_running(x)                          \
  32         xmms_remote_is_running(x)
  33 #define audacious_remote_is_paused(x)                           \
  34         xmms_remote_is_paused(x)
  35 #define audacious_remote_is_playing(x)                          \
  36         xmms_remote_is_playing(x)
  37 #define audacious_remote_get_playlist_pos(x)            \
  38         xmms_remote_get_playlist_pos(x)
  39 #define audacious_remote_get_playlist_title(x, y)       \
  40         xmms_remote_get_playlist_title(x, y)
  41 #define audacious_remote_get_playlist_time(x, y)        \
  42         xmms_remote_get_playlist_time(x, y)
  43 #define audacious_remote_get_output_time(x)                     \
  44         xmms_remote_get_output_time(x)
  45 #define audacious_remote_get_info(w, x, y, z)           \
  46         xmms_remote_get_info(w, x, y, z)
  47 #define audacious_remote_get_playlist_file(x, y)        \
  48         xmms_remote_get_playlist_file(x, y)
  49 #define audacious_remote_get_playlist_length(x)         \
  50         xmms_remote_get_playlist_length(x)
  51 #endif
  52
  53 #include "conky.h"
  54 #include "audacious.h"
  55
  56 /* access to this item array is synchronized */
  57 static audacious_t audacious_items;
  58
  59 /* -----------------------------------------
  60  * Conky update function for audacious data.
  61  * ----------------------------------------- */
  62 void update_audacious(void)
  63 {
  64         /* The worker thread is updating audacious_items array asynchronously
  65          * to the main conky thread.
  66          * We merely copy the audacious_items array into the main thread's info
  67          * structure when the main thread's update cycle fires. */
  68         if (!info.audacious.p_timed_thread) {
  69                 if (create_audacious_thread() != 0) {
  70                         CRIT_ERR("unable to create audacious thread!");
  71                 }
  72                 timed_thread_register(info.audacious.p_timed_thread,
  73                         &info.audacious.p_timed_thread);
  74         }
  75
  76         timed_thread_lock(info.audacious.p_timed_thread);
  77         memcpy(&info.audacious.items, audacious_items, sizeof(audacious_items));
  78         timed_thread_unlock(info.audacious.p_timed_thread);
  79 }
  80
  81 /* ---------------------------------------------------------
  82  * Create a worker thread for audacious media player status.
  83  *
  84  * Returns 0 on success, -1 on error.
  85  * --------------------------------------------------------- */
  86 int create_audacious_thread(void)
  87 {
  88         if (!info.audacious.p_timed_thread) {
  89                 info.audacious.p_timed_thread =
  90                         timed_thread_create(audacious_thread_func, NULL,
  91                         info.music_player_interval * 1000000);
  92         }
  93
  94         if (!info.audacious.p_timed_thread
  95                         || timed_thread_run(info.audacious.p_timed_thread)) {
  96                 return -1;
  97         }
  98
  99         return 0;
 100 }
 101
 102 /* ---------------------------------------
 103  * Destroy audacious player status thread.
 104  *
 105  * Returns 0 on success, -1 on error.
 106  * --------------------------------------- */
 107 int destroy_audacious_thread(void)
 108 {
 109         /* Is a worker is thread running? If not, no error. */
 110         if (info.audacious.p_timed_thread) {
 111                 timed_thread_destroy(info.audacious.p_timed_thread,
 112                         &info.audacious.p_timed_thread);
 113         }
 114
 115         return 0;
 116 }
 117
 118 /* ---------------------------------------------------
 119  * Worker thread function for audacious data sampling.
 120  * --------------------------------------------------- */
 121 __attribute((noreturn))
 122 void *audacious_thread_func(void *pvoid)
 123 {
 124         static audacious_t items;
 125         gint playpos, frames, length;
 126         gint rate, freq, chans, vol;
 127         gchar *psong, *pfilename;
 128
 129 #ifndef AUDACIOUS_LEGACY
 130         DBusGProxy *session = NULL;
 131         DBusGConnection *connection = NULL;
 132 #else
 133         gint session;
 134 #endif
 135
 136         pvoid = (void *) pvoid; /* avoid warning */
 137         session = 0;
 138         psong = NULL;
 139         pfilename = NULL;
 140
 141 #ifndef AUDACIOUS_LEGACY
 142         g_type_init();
 143         connection = dbus_g_bus_get(DBUS_BUS_SESSION, NULL);
 144         if (!connection) {
 145                 CRIT_ERR("unable to establish dbus connection");
 146         }
 147         session = dbus_g_proxy_new_for_name(connection, AUDACIOUS_DBUS_SERVICE,
 148                         AUDACIOUS_DBUS_PATH, AUDACIOUS_DBUS_INTERFACE);
 149         if (!session) {
 150                 CRIT_ERR("unable to create dbus proxy");
 151         }
 152 #endif /* AUDACIOUS_LEGACY */
 153
 154         /* Loop until the main thread resets the runnable signal. */
 155         while (1) {
 156
 157                 do {
 158                         if (!audacious_remote_is_running(session)) {
 159                                 memset(&items, 0, sizeof(items));
 160                                 strcpy(items[AUDACIOUS_STATUS], "Not running");
 161                                 break;
 162                         }
 163
 164                         /* Player status */
 165                         if (audacious_remote_is_paused(session)) {
 166                                 strcpy(items[AUDACIOUS_STATUS], "Paused");
 167                         } else if (audacious_remote_is_playing(session)) {
 168                                 strcpy(items[AUDACIOUS_STATUS], "Playing");
 169                         } else {
 170                                 strcpy(items[AUDACIOUS_STATUS], "Stopped");
 171                         }
 172
 173                         /* Current song title */
 174                         playpos = audacious_remote_get_playlist_pos(session);
 175                         psong = audacious_remote_get_playlist_title(session, playpos);
 176                         if (psong) {
 177                                 strncpy(items[AUDACIOUS_TITLE], psong,
 178                                                 sizeof(items[AUDACIOUS_TITLE]) - 1);
 179                                 g_free(psong);
 180                                 psong = NULL;
 181                         }
 182
 183                         /* Current song length as MM:SS */
 184                         frames = audacious_remote_get_playlist_time(session, playpos);
 185                         length = frames / 1000;
 186                         snprintf(items[AUDACIOUS_LENGTH], sizeof(items[AUDACIOUS_LENGTH]) - 1,
 187                                         "%d:%.2d", length / 60, length % 60);
 188
 189                         /* Current song length in seconds */
 190                         snprintf(items[AUDACIOUS_LENGTH_SECONDS],
 191                                         sizeof(items[AUDACIOUS_LENGTH_SECONDS]) - 1, "%d", length);
 192
 193                         /* Current song position as MM:SS */
 194                         frames = audacious_remote_get_output_time(session);
 195                         length = frames / 1000;
 196                         snprintf(items[AUDACIOUS_POSITION],
 197                                         sizeof(items[AUDACIOUS_POSITION]) - 1, "%d:%.2d", length / 60,
 198                                         length % 60);
 199
 200                         /* Current song position in seconds */
 201                         snprintf(items[AUDACIOUS_POSITION_SECONDS],
 202                                         sizeof(items[AUDACIOUS_POSITION_SECONDS]) - 1, "%d", length);
 203
 204                         /* Current song bitrate */
 205                         audacious_remote_get_info(session, &rate, &freq, &chans);
 206                         snprintf(items[AUDACIOUS_BITRATE], sizeof(items[AUDACIOUS_BITRATE]) - 1,
 207                                         "%d", rate);
 208
 209                         /* Current song frequency */
 210                         snprintf(items[AUDACIOUS_FREQUENCY],
 211                                         sizeof(items[AUDACIOUS_FREQUENCY]) - 1, "%d", freq);
 212
 213                         /* Current song channels */
 214                         snprintf(items[AUDACIOUS_CHANNELS],
 215                                         sizeof(items[AUDACIOUS_CHANNELS]) - 1, "%d", chans);
 216
 217                         /* Current song filename */
 218                         pfilename = audacious_remote_get_playlist_file(session, playpos);
 219                         if (pfilename) {
 220                                 strncpy(items[AUDACIOUS_FILENAME], pfilename,
 221                                                 sizeof(items[AUDACIOUS_FILENAME]) - 1);
 222                                 g_free(pfilename);
 223                                 pfilename = NULL;
 224                         }
 225
 226                         /* Length of the Playlist (number of songs) */
 227                         length = audacious_remote_get_playlist_length(session);
 228                         snprintf(items[AUDACIOUS_PLAYLIST_LENGTH],
 229                                         sizeof(items[AUDACIOUS_PLAYLIST_LENGTH]) - 1, "%d", length);
 230
 231                         /* Playlist position (index of song) */
 232                         snprintf(items[AUDACIOUS_PLAYLIST_POSITION],
 233                                         sizeof(items[AUDACIOUS_PLAYLIST_POSITION]) - 1, "%d", playpos + 1);
 234                         /* Main volume */
 235                         vol = audacious_remote_get_main_volume(session);
 236                         snprintf(items[AUDACIOUS_MAIN_VOLUME],
 237                                         sizeof(items[AUDACIOUS_MAIN_VOLUME]) - 1, "%d", vol);
 238
 239                 } while (0);
 240                 /* Deliver the refreshed items array to audacious_items. */
 241                 timed_thread_lock(info.audacious.p_timed_thread);
 242                 memcpy(&audacious_items, items, sizeof(items));
 243                 timed_thread_unlock(info.audacious.p_timed_thread);
 244
 245                 if (timed_thread_test(info.audacious.p_timed_thread, 0)) {
 246 #ifndef AUDACIOUS_LEGACY
 247                         /* release reference to dbus proxy */
 248                         g_object_unref(session);
 249 #endif
 250                         timed_thread_exit(info.audacious.p_timed_thread);
 251                 }
 252         }
 253 }