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conky/src/audacious.cc

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/* -*- mode: c++; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: t -*-
* vim: ts=4 sw=4 noet ai cindent syntax=cpp
*
* audacious.c: conky support for audacious music player
*
* Copyright (C) 2005-2007 Philip Kovacs pkovacs@users.sourceforge.net
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
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* USA.
*
*/
#include <config.h>
#include "conky.h"
#include "logging.h"
#include "audacious.h"
#include <mutex>
#include <glib.h>
#ifndef BUILD_AUDACIOUS_LEGACY
#include <glib-object.h>
#include <audacious/audctrl.h>
#include <audacious/dbus.h>
#else /* BUILD_AUDACIOUS_LEGACY */
#include <audacious/beepctrl.h>
#define audacious_remote_is_running(x) \
xmms_remote_is_running(x)
#define audacious_remote_is_paused(x) \
xmms_remote_is_paused(x)
#define audacious_remote_is_playing(x) \
xmms_remote_is_playing(x)
#define audacious_remote_get_playlist_pos(x) \
xmms_remote_get_playlist_pos(x)
#define audacious_remote_get_playlist_title(x, y) \
xmms_remote_get_playlist_title(x, y)
#define audacious_remote_get_playlist_time(x, y) \
xmms_remote_get_playlist_time(x, y)
#define audacious_remote_get_output_time(x) \
xmms_remote_get_output_time(x)
#define audacious_remote_get_info(w, x, y, z) \
xmms_remote_get_info(w, x, y, z)
#define audacious_remote_get_playlist_file(x, y) \
xmms_remote_get_playlist_file(x, y)
#define audacious_remote_get_playlist_length(x) \
xmms_remote_get_playlist_length(x)
#endif /* BUILD_AUDACIOUS_LEGACY */
/* access to this item array is synchronized */
static audacious_t audacious_items;
/* -----------------------------------------
* Conky update function for audacious data.
* ----------------------------------------- */
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int update_audacious(void)
{
/* The worker thread is updating audacious_items array asynchronously
* to the main conky thread.
* We merely copy the audacious_items array into the main thread's info
* structure when the main thread's update cycle fires. */
if (!info.audacious.p_timed_thread) {
if (create_audacious_thread() != 0) {
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CRIT_ERR(NULL, NULL, "unable to create audacious thread!");
}
}
std::lock_guard<std::mutex> lock(info.audacious.p_timed_thread->mutex());
memcpy(&info.audacious.items, audacious_items, sizeof(audacious_items));
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return 0;
}
/* ---------------------------------------------------------
* Create a worker thread for audacious media player status.
*
* Returns 0 on success, -1 on error.
* --------------------------------------------------------- */
int create_audacious_thread(void)
{
if (!info.audacious.p_timed_thread) {
info.audacious.p_timed_thread =
timed_thread::create(std::bind(audacious_thread_func, std::placeholders::_1),
std::chrono::microseconds(long(info.music_player_interval * 1000000)));
}
if (!info.audacious.p_timed_thread) {
return -1;
}
return 0;
}
/* ---------------------------------------
* Destroy audacious player status thread.
*
* Returns 0 on success, -1 on error.
* --------------------------------------- */
int destroy_audacious_thread(void)
{
/* Is a worker is thread running? If not, no error. */
if (info.audacious.p_timed_thread) {
info.audacious.p_timed_thread.reset();
}
return 0;
}
/* ---------------------------------------------------
* Worker thread function for audacious data sampling.
* --------------------------------------------------- */
void audacious_thread_func(thread_handle &handle)
{
static audacious_t items;
gint playpos, frames, length;
gint rate, freq, chans, vol;
gchar *psong, *pfilename;
#ifndef BUILD_AUDACIOUS_LEGACY
DBusGProxy *session = NULL;
DBusGConnection *connection = NULL;
#else
gint session;
#endif
session = 0;
psong = NULL;
pfilename = NULL;
#ifndef BUILD_AUDACIOUS_LEGACY
g_type_init();
connection = dbus_g_bus_get(DBUS_BUS_SESSION, NULL);
if (!connection) {
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CRIT_ERR(NULL, NULL, "unable to establish dbus connection");
}
session = dbus_g_proxy_new_for_name(connection, AUDACIOUS_DBUS_SERVICE,
AUDACIOUS_DBUS_PATH, AUDACIOUS_DBUS_INTERFACE);
if (!session) {
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CRIT_ERR(NULL, NULL, "unable to create dbus proxy");
}
#endif /* BUILD_AUDACIOUS_LEGACY */
/* Loop until the main thread resets the runnable signal. */
while (1) {
do {
if (!audacious_remote_is_running(session)) {
memset(&items, 0, sizeof(items));
strcpy(items[AUDACIOUS_STATUS], "Not running");
break;
}
/* Player status */
if (audacious_remote_is_paused(session)) {
strcpy(items[AUDACIOUS_STATUS], "Paused");
} else if (audacious_remote_is_playing(session)) {
strcpy(items[AUDACIOUS_STATUS], "Playing");
} else {
strcpy(items[AUDACIOUS_STATUS], "Stopped");
}
/* Current song title */
playpos = audacious_remote_get_playlist_pos(session);
psong = audacious_remote_get_playlist_title(session, playpos);
if (psong) {
strncpy(items[AUDACIOUS_TITLE], psong,
sizeof(items[AUDACIOUS_TITLE]) - 1);
g_free(psong);
psong = NULL;
}
/* Current song length as MM:SS */
frames = audacious_remote_get_playlist_time(session, playpos);
length = frames / 1000;
snprintf(items[AUDACIOUS_LENGTH], sizeof(items[AUDACIOUS_LENGTH]) - 1,
"%d:%.2d", length / 60, length % 60);
/* Current song length in seconds */
snprintf(items[AUDACIOUS_LENGTH_SECONDS],
sizeof(items[AUDACIOUS_LENGTH_SECONDS]) - 1, "%d", length);
/* Current song position as MM:SS */
frames = audacious_remote_get_output_time(session);
length = frames / 1000;
snprintf(items[AUDACIOUS_POSITION],
sizeof(items[AUDACIOUS_POSITION]) - 1, "%d:%.2d", length / 60,
length % 60);
/* Current song position in seconds */
snprintf(items[AUDACIOUS_POSITION_SECONDS],
sizeof(items[AUDACIOUS_POSITION_SECONDS]) - 1, "%d", length);
/* Current song bitrate */
audacious_remote_get_info(session, &rate, &freq, &chans);
snprintf(items[AUDACIOUS_BITRATE], sizeof(items[AUDACIOUS_BITRATE]) - 1,
"%d", rate);
/* Current song frequency */
snprintf(items[AUDACIOUS_FREQUENCY],
sizeof(items[AUDACIOUS_FREQUENCY]) - 1, "%d", freq);
/* Current song channels */
snprintf(items[AUDACIOUS_CHANNELS],
sizeof(items[AUDACIOUS_CHANNELS]) - 1, "%d", chans);
/* Current song filename */
pfilename = audacious_remote_get_playlist_file(session, playpos);
if (pfilename) {
strncpy(items[AUDACIOUS_FILENAME], pfilename,
sizeof(items[AUDACIOUS_FILENAME]) - 1);
g_free(pfilename);
pfilename = NULL;
}
/* Length of the Playlist (number of songs) */
length = audacious_remote_get_playlist_length(session);
snprintf(items[AUDACIOUS_PLAYLIST_LENGTH],
sizeof(items[AUDACIOUS_PLAYLIST_LENGTH]) - 1, "%d", length);
/* Playlist position (index of song) */
snprintf(items[AUDACIOUS_PLAYLIST_POSITION],
sizeof(items[AUDACIOUS_PLAYLIST_POSITION]) - 1, "%d", playpos + 1);
/* Main volume */
vol = audacious_remote_get_main_volume(session);
snprintf(items[AUDACIOUS_MAIN_VOLUME],
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sizeof(items[AUDACIOUS_MAIN_VOLUME]) - 1, "%d", vol);
} while (0);
{
/* Deliver the refreshed items array to audacious_items. */
std::lock_guard<std::mutex> lock(handle.mutex());
memcpy(&audacious_items, items, sizeof(items));
}
if (handle.test(0)) {
#ifndef BUILD_AUDACIOUS_LEGACY
/* release reference to dbus proxy */
g_object_unref(session);
#endif
return;
}
}
}
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void print_audacious_title(struct text_object *, char *p, int p_max_size)
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{
snprintf(p, info.audacious.max_title_len > 0
? info.audacious.max_title_len : p_max_size, "%s",
info.audacious.items[AUDACIOUS_TITLE]);
}
double audacious_barval(struct text_object *)
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{
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return atof(info.audacious.items[AUDACIOUS_POSITION_SECONDS]) /
atof(info.audacious.items[AUDACIOUS_LENGTH_SECONDS]);
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}
#define AUDACIOUS_PRINT_GENERATOR(name, idx) \
void print_audacious_##name(struct text_object *, char *p, int p_max_size) \
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{ \
snprintf(p, p_max_size, "%s", info.audacious.items[AUDACIOUS_##idx]); \
}
AUDACIOUS_PRINT_GENERATOR(status, STATUS)
AUDACIOUS_PRINT_GENERATOR(length, LENGTH)
AUDACIOUS_PRINT_GENERATOR(length_seconds, LENGTH_SECONDS)
AUDACIOUS_PRINT_GENERATOR(position, POSITION)
AUDACIOUS_PRINT_GENERATOR(position_seconds, POSITION_SECONDS)
AUDACIOUS_PRINT_GENERATOR(bitrate, BITRATE)
AUDACIOUS_PRINT_GENERATOR(frequency, FREQUENCY)
AUDACIOUS_PRINT_GENERATOR(channels, CHANNELS)
AUDACIOUS_PRINT_GENERATOR(filename, FILENAME)
AUDACIOUS_PRINT_GENERATOR(playlist_length, PLAYLIST_LENGTH)
AUDACIOUS_PRINT_GENERATOR(playlist_position, PLAYLIST_POSITION)
AUDACIOUS_PRINT_GENERATOR(main_volume, MAIN_VOLUME)
#undef AUDACIOUS_PRINT_GENERATOR