/* the Music Player Daemon (MPD)
* Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
* This project's homepage is: http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "player.h"
#include "path.h"
#include "decode.h"
#include "command.h"
#include "interface.h"
#include "playlist.h"
#include "ls.h"
#include "listen.h"
#include "log.h"
#include "utils.h"
#include "directory.h"
#include "volume.h"
#include "playerData.h"
#include "permission.h"
#include "ack.h"
#include "os_compat.h"
#include "main_notify.h"
static void playerCloseAudio(void);
void wakeup_player_nb(void)
{
notify_signal(&pc.notify);
}
static void wakeup_player(void)
{
notify_signal(&pc.notify);
wait_main_task();
}
void player_sleep(void)
{
notify_wait(&pc.notify);
}
static void * player_task(mpd_unused void *arg)
{
notify_enter(&pc.notify);
while (1) {
if (pc.play) {
decode();
continue; /* decode() calls wakeup_main_task */
} else if (pc.stop) {
pc.stop = 0;
} else if (pc.seek) {
pc.seek = 0;
} else if (pc.pause) {
pc.pause = 0;
} else if (pc.closeAudio) {
closeAudioDevice();
pc.closeAudio = 0;
} else if (pc.lockQueue) {
pc.queueLockState = PLAYER_QUEUE_LOCKED;
pc.lockQueue = 0;
} else if (pc.unlockQueue) {
pc.queueLockState = PLAYER_QUEUE_UNLOCKED;
pc.unlockQueue = 0;
} else {
player_sleep();
continue;
}
/* we did something, tell the main task about it */
wakeup_main_task();
}
return NULL;
}
void playerInit(void)
{
pthread_attr_t attr;
pthread_t player_thread;
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
if (pthread_create(&player_thread, &attr, player_task, NULL))
FATAL("Failed to spawn player task: %s\n", strerror(errno));
}
int playerWait(int fd)
{
if (playerStop(fd) < 0)
return -1;
playerCloseAudio();
return 0;
}
static void set_current_song(Song *song)
{
pc.fileTime = song->tag ? song->tag->time : 0;
pc.current_song = song;
}
int playerPlay(int fd, Song * song)
{
if (playerStop(fd) < 0)
return -1;
set_current_song(song);
pc.play = 1;
/* FIXME: _nb() variant is probably wrong here, and everywhere... */
do { wakeup_player_nb(); } while (pc.play);
return 0;
}
int playerStop(int fd)
{
if (pc.state != PLAYER_STATE_STOP) {
pc.stop = 1;
do { wakeup_player(); } while (pc.stop);
}
pc.queueState = PLAYER_QUEUE_BLANK;
playerQueueUnlock();
return 0;
}
void playerKill(void) /* deprecated */
{
playerPause(STDERR_FILENO);
}
int playerPause(int fd)
{
if (pc.state != PLAYER_STATE_STOP) {
pc.pause = 1;
do { wakeup_player(); } while (pc.pause);
}
return 0;
}
int playerSetPause(int fd, int pause_flag)
{
switch (pc.state) {
case PLAYER_STATE_PLAY:
if (pause_flag)
playerPause(fd);
break;
case PLAYER_STATE_PAUSE:
if (!pause_flag)
playerPause(fd);
break;
}
return 0;
}
int getPlayerElapsedTime(void)
{
return (int)(pc.elapsedTime + 0.5);
}
unsigned long getPlayerBitRate(void)
{
return pc.bitRate;
}
int getPlayerTotalTime(void)
{
return (int)(pc.totalTime + 0.5);
}
int getPlayerState(void)
{
return pc.state;
}
void clearPlayerError(void)
{
pc.error = 0;
}
int getPlayerError(void)
{
return pc.error;
}
char *getPlayerErrorStr(void)
{
/* static OK here, only one user in main task */
static char error[MPD_PATH_MAX + 64]; /* still too much */
static const size_t errorlen = sizeof(error);
char path_max_tmp[MPD_PATH_MAX];
*error = '\0'; /* likely */
switch (pc.error) {
case PLAYER_ERROR_FILENOTFOUND:
snprintf(error, errorlen,
"file \"%s\" does not exist or is inaccessible",
get_song_url(path_max_tmp, pc.errored_song));
break;
case PLAYER_ERROR_FILE:
snprintf(error, errorlen, "problems decoding \"%s\"",
get_song_url(path_max_tmp, pc.errored_song));
break;
case PLAYER_ERROR_AUDIO:
strcpy(error, "problems opening audio device");
break;
case PLAYER_ERROR_SYSTEM:
strcpy(error, "system error occured");
break;
case PLAYER_ERROR_UNKTYPE:
snprintf(error, errorlen, "file type of \"%s\" is unknown",
get_song_url(path_max_tmp, pc.errored_song));
}
return *error ? error : NULL;
}
static void playerCloseAudio(void)
{
if (playerStop(STDERR_FILENO) < 0)
return;
pc.closeAudio = 1;
do { wakeup_player(); } while (pc.closeAudio);
}
int queueSong(Song * song)
{
if (pc.queueState == PLAYER_QUEUE_BLANK) {
set_current_song(song);
pc.queueState = PLAYER_QUEUE_FULL;
return 0;
}
return -1;
}
int getPlayerQueueState(void)
{
return pc.queueState;
}
void setQueueState(int queueState)
{
pc.queueState = queueState;
wakeup_player_nb();
}
void playerQueueLock(void)
{
if (pc.queueLockState == PLAYER_QUEUE_UNLOCKED) {
pc.lockQueue = 1;
do { wakeup_player(); } while (pc.lockQueue);
}
}
void playerQueueUnlock(void)
{
if (pc.queueLockState == PLAYER_QUEUE_LOCKED) {
pc.unlockQueue = 1;
do { wakeup_player(); } while (pc.unlockQueue);
}
}
int playerSeek(int fd, Song * song, float seek_time)
{
assert(song != NULL);
if (pc.state == PLAYER_STATE_STOP) {
commandError(fd, ACK_ERROR_PLAYER_SYNC,
"player not currently playing");
return -1;
}
if (pc.current_song != song)
set_current_song(song);
if (pc.error == PLAYER_ERROR_NOERROR) {
pc.seekWhere = seek_time;
pc.seek = 1;
/* FIXME: _nb() is probably wrong here, too */
do { wakeup_player_nb(); } while (pc.seek);
}
return 0;
}
float getPlayerCrossFade(void)
{
return pc.crossFade;
}
void setPlayerCrossFade(float crossFadeInSeconds)
{
if (crossFadeInSeconds < 0)
crossFadeInSeconds = 0;
pc.crossFade = crossFadeInSeconds;
}
void setPlayerSoftwareVolume(int volume)
{
volume = (volume > 1000) ? 1000 : (volume < 0 ? 0 : volume);
pc.softwareVolume = volume;
}
double getPlayerTotalPlayTime(void)
{
return pc.totalPlayTime;
}
unsigned int getPlayerSampleRate(void)
{
return pc.sampleRate;
}
int getPlayerBits(void)
{
return pc.bits;
}
int getPlayerChannels(void)
{
return pc.channels;
}
/* this actually creates a dupe of the current metadata */
Song *playerCurrentDecodeSong(void)
{
return NULL;
}