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owntone-server/src/player.c

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/*
* Copyright (C) 2010 Julien BLACHE <jb@jblache.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
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <inttypes.h>
#include <stdint.h>
#include <errno.h>
#include <time.h>
#include <pthread.h>
#if defined(__linux__)
# include <sys/timerfd.h>
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
# include <sys/time.h>
# include <sys/event.h>
#endif
#if defined(HAVE_SYS_EVENTFD_H) && defined(HAVE_EVENTFD)
# define USE_EVENTFD
# include <sys/eventfd.h>
#endif
#include <avahi-common/malloc.h>
#include <event.h>
#include <gcrypt.h>
#include "db.h"
#include "daap_query.h"
#include "logger.h"
#include "mdns_avahi.h"
#include "conffile.h"
#include "misc.h"
#include "rng.h"
#include "transcode.h"
#include "player.h"
#include "raop.h"
#include "laudio.h"
#ifndef MIN
# define MIN(a, b) ((a < b) ? a : b)
#endif
#define VAR_PLAYER_VOLUME "player:volume"
#define VAR_ACTIVE_SPK "player:active-spk"
#define LAST_ACTIVE_GRACEPERIOD (5 * 60)
enum player_sync_source
{
PLAYER_SYNC_CLOCK,
PLAYER_SYNC_LAUDIO,
};
typedef int (*cmd_func)(void *arg);
struct player_command
{
cmd_func func;
cmd_func func_bh;
void *arg;
int ret;
int raop_pending;
};
struct player_source
{
uint32_t id;
uint64_t stream_start;
uint64_t output_start;
uint64_t end;
struct transcode_ctx *ctx;
struct player_source *pl_next;
struct player_source *pl_prev;
struct player_source *shuffle_next;
struct player_source *shuffle_prev;
struct player_source *play_next;
};
struct event_base *evbase_player;
#ifdef USE_EVENTFD
static int exit_efd;
static int cmd_efd;
#else
static int exit_pipe[2];
static int cmd_pipe[2];
#endif
static int player_exit;
static struct event exitev;
static struct event cmdev;
static pthread_t tid_player;
/* Player status */
static enum play_status player_state;
static enum repeat_mode repeat;
static char shuffle;
/* Status updates (for DACP) */
static player_status_handler update_handler;
/* Playback timer */
static int pb_timer_fd;
static struct event pb_timer_ev;
#if defined(__linux__)
static struct timespec pb_timer_last;
#endif
/* Sync source */
static enum player_sync_source pb_sync_source;
/* Sync values */
static struct timespec pb_pos_stamp;
static uint64_t pb_pos;
/* Stream position (packets) */
static uint64_t last_rtptime;
/* AirTunes devices */
static time_t dev_deadline;
static struct raop_device *dev_list;
static pthread_mutex_t dev_lck = PTHREAD_MUTEX_INITIALIZER;
/* Device status */
static enum laudio_state laudio_status;
static int laudio_selected;
static int raop_sessions;
/* Commands */
static struct player_command cmd;
static pthread_mutex_t cmd_lck = PTHREAD_MUTEX_INITIALIZER;
static pthread_cond_t cmd_cond = PTHREAD_COND_INITIALIZER;
/* Last commanded volume */
static int volume;
/* Shuffle RNG state */
struct rng_ctx shuffle_rng;
/* Audio source */
static struct player_source *source_head;
static struct player_source *shuffle_head;
static struct player_source *cur_playing;
static struct player_source *cur_streaming;
static uint32_t cur_plid;
static struct evbuffer *audio_buf;
static void
status_update(enum play_status status)
{
player_state = status;
if (update_handler)
update_handler();
}
static int
player_get_current_pos_clock(uint64_t *pos, struct timespec *ts, int commit)
{
uint64_t delta;
int ret;
ret = clock_gettime(CLOCK_MONOTONIC, ts);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Couldn't get clock: %s\n", strerror(errno));
return -1;
}
delta = (ts->tv_sec - pb_pos_stamp.tv_sec) * 1000000 + (ts->tv_nsec - pb_pos_stamp.tv_nsec) / 1000;
#ifdef DEBUG_SYNC
DPRINTF(E_DBG, L_PLAYER, "Delta is %" PRIu64 " usec\n", delta);
#endif
delta = (delta * 44100) / 1000000;
#ifdef DEBUG_SYNC
DPRINTF(E_DBG, L_PLAYER, "Delta is %" PRIu64 " samples\n", delta);
#endif
*pos = pb_pos + delta;
if (commit)
{
pb_pos = *pos;
pb_pos_stamp.tv_sec = ts->tv_sec;
pb_pos_stamp.tv_nsec = ts->tv_nsec;
DPRINTF(E_DBG, L_PLAYER, "Pos: %" PRIu64 " (clock)\n", *pos);
}
return 0;
}
static int
player_get_current_pos_laudio(uint64_t *pos, struct timespec *ts, int commit)
{
int ret;
*pos = laudio_get_pos();
ret = clock_gettime(CLOCK_MONOTONIC, ts);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Couldn't get clock: %s\n", strerror(errno));
return -1;
}
if (commit)
{
pb_pos = *pos;
pb_pos_stamp.tv_sec = ts->tv_sec;
pb_pos_stamp.tv_nsec = ts->tv_nsec;
DPRINTF(E_DBG, L_PLAYER, "Pos: %" PRIu64 " (laudio)\n", *pos);
}
return 0;
}
int
player_get_current_pos(uint64_t *pos, struct timespec *ts, int commit)
{
switch (pb_sync_source)
{
case PLAYER_SYNC_CLOCK:
return player_get_current_pos_clock(pos, ts, commit);
case PLAYER_SYNC_LAUDIO:
return player_get_current_pos_laudio(pos, ts, commit);
}
return -1;
}
/* Forward */
static int
playback_stop(void *arg);
static void
player_laudio_status_cb(enum laudio_state status)
{
struct timespec ts;
uint64_t pos;
switch (status)
{
/* Switch sync to clock sync */
case LAUDIO_STOPPING:
DPRINTF(E_DBG, L_PLAYER, "Local audio stopping\n");
laudio_status = status;
/* Synchronize pb_pos and pb_pos_stamp before laudio stops entirely */
player_get_current_pos_laudio(&pos, &ts, 1);
pb_sync_source = PLAYER_SYNC_CLOCK;
break;
/* Switch sync to laudio sync */
case LAUDIO_RUNNING:
DPRINTF(E_DBG, L_PLAYER, "Local audio running\n");
laudio_status = status;
pb_sync_source = PLAYER_SYNC_LAUDIO;
break;
case LAUDIO_FAILED:
DPRINTF(E_DBG, L_PLAYER, "Local audio failed\n");
pb_sync_source = PLAYER_SYNC_CLOCK;
laudio_close();
if (raop_sessions == 0)
playback_stop(NULL);
laudio_selected = 0;
break;
default:
laudio_status = status;
break;
}
}
/* Audio sources */
/* Thread: httpd (DACP) */
static struct player_source *
player_queue_make(struct query_params *qp, const char *sort)
{
struct db_media_file_info dbmfi;
struct player_source *q_head;
struct player_source *q_tail;
struct player_source *ps;
uint32_t id;
int ret;
qp->idx_type = I_NONE;
qp->sort = S_NONE;
if (sort)
{
if (strcmp(sort, "name") == 0)
qp->sort = S_NAME;
else if (strcmp(sort, "album") == 0)
qp->sort = S_ALBUM;
}
ret = db_query_start(qp);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not start query\n");
return NULL;
}
DPRINTF(E_DBG, L_PLAYER, "Player queue query returned %d items\n", qp->results);
q_head = NULL;
q_tail = NULL;
while (((ret = db_query_fetch_file(qp, &dbmfi)) == 0) && (dbmfi.id))
{
ret = safe_atou32(dbmfi.id, &id);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Invalid song id in query result!\n");
continue;
}
ps = (struct player_source *)malloc(sizeof(struct player_source));
if (!ps)
{
DPRINTF(E_LOG, L_PLAYER, "Out of memory for struct player_source\n");
ret = -1;
break;
}
memset(ps, 0, sizeof(struct player_source));
ps->id = id;
if (!q_head)
q_head = ps;
if (q_tail)
{
q_tail->pl_next = ps;
ps->pl_prev = q_tail;
q_tail->shuffle_next = ps;
ps->shuffle_prev = q_tail;
}
q_tail = ps;
DPRINTF(E_DBG, L_PLAYER, "Added song id %d (%s)\n", id, dbmfi.title);
}
db_query_end(qp);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Error fetching results\n");
return NULL;
}
if (!q_head)
return NULL;
q_head->pl_prev = q_tail;
q_tail->pl_next = q_head;
return q_head;
}
/* Thread: httpd (DACP) */
struct player_source *
player_queue_make_daap(const char *query, const char *sort)
{
struct query_params qp;
struct player_source *ps;
memset(&qp, 0, sizeof(struct query_params));
qp.type = Q_ITEMS;
qp.offset = 0;
qp.limit = 0;
qp.filter = daap_query_parse_sql(query);
if (!qp.filter)
{
DPRINTF(E_LOG, L_PLAYER, "Improper DAAP query!\n");
return NULL;
}
ps = player_queue_make(&qp, sort);
free(qp.filter);
return ps;
}
struct player_source *
player_queue_make_pl(int plid, uint32_t *id)
{
struct query_params qp;
struct player_source *ps;
struct player_source *p;
uint32_t i;
memset(&qp, 0, sizeof(struct query_params));
qp.id = plid;
qp.type = Q_PLITEMS;
qp.offset = 0;
qp.limit = 0;
ps = player_queue_make(&qp, NULL);
/* Shortcut for shuffled playlist */
if (*id == 0)
return ps;
p = ps;
i = 0;
do
{
if (p->id == *id)
{
*id = i;
break;
}
p = p->pl_next;
i++;
}
while (p != ps);
return ps;
}
static void
source_free(struct player_source *ps)
{
if (ps->ctx)
transcode_cleanup(ps->ctx);
free(ps);
}
static void
source_stop(struct player_source *ps)
{
struct player_source *tmp;
while (ps)
{
if (ps->ctx)
{
transcode_cleanup(ps->ctx);
ps->ctx = NULL;
}
tmp = ps;
ps = ps->play_next;
tmp->play_next = NULL;
}
}
static struct player_source *
source_shuffle(struct player_source *head)
{
struct player_source *ps;
struct player_source **ps_array;
int nitems;
int i;
if (!head)
return NULL;
ps = head;
nitems = 0;
do
{
nitems++;
ps = ps->pl_next;
}
while (ps != head);
ps_array = (struct player_source **)malloc(nitems * sizeof(struct player_source *));
if (!ps_array)
{
DPRINTF(E_LOG, L_PLAYER, "Could not allocate memory for shuffle array\n");
return NULL;
}
ps = head;
i = 0;
do
{
ps_array[i] = ps;
ps = ps->pl_next;
i++;
}
while (ps != head);
shuffle_ptr(&shuffle_rng, (void **)ps_array, nitems);
for (i = 0; i < nitems; i++)
{
ps = ps_array[i];
if (i > 0)
ps->shuffle_prev = ps_array[i - 1];
if (i < (nitems - 1))
ps->shuffle_next = ps_array[i + 1];
}
ps_array[0]->shuffle_prev = ps_array[nitems - 1];
ps_array[nitems - 1]->shuffle_next = ps_array[0];
ps = ps_array[0];
free(ps_array);
return ps;
}
static void
source_reshuffle(void)
{
struct player_source *ps;
ps = source_shuffle(source_head);
if (!ps)
return;
if (cur_streaming)
shuffle_head = cur_streaming;
else
shuffle_head = ps;
}
/* Helper */
static int
source_open(struct player_source *ps)
{
struct media_file_info *mfi;
ps->stream_start = 0;
ps->output_start = 0;
ps->end = 0;
ps->play_next = NULL;
mfi = db_file_fetch_byid(ps->id);
if (!mfi)
{
DPRINTF(E_LOG, L_PLAYER, "Couldn't fetch file id %d\n", ps->id);
return -1;
}
if (mfi->disabled)
{
DPRINTF(E_DBG, L_PLAYER, "File id %d is disabled, skipping\n", ps->id);
free_mfi(mfi, 0);
return -1;
}
DPRINTF(E_DBG, L_PLAYER, "Opening %s\n", mfi->path);
ps->ctx = transcode_setup(mfi, NULL, 0);
free_mfi(mfi, 0);
if (!ps->ctx)
{
DPRINTF(E_LOG, L_PLAYER, "Could not open file id %d\n", ps->id);
return -1;
}
return 0;
}
static int
source_next(int force)
{
struct player_source *ps;
struct player_source *head;
struct player_source *limit;
enum repeat_mode r_mode;
int ret;
head = (shuffle) ? shuffle_head : source_head;
limit = head;
r_mode = repeat;
/* Force repeat mode at user request */
if (force && (r_mode == REPEAT_SONG))
r_mode = REPEAT_ALL;
/* Playlist has only one file, treat REPEAT_ALL as REPEAT_SONG */
if ((r_mode == REPEAT_ALL) && (source_head == source_head->pl_next))
r_mode = REPEAT_SONG;
/* Playlist has only one file, not a user action, treat as REPEAT_ALL
* and source_check() will stop playback
*/
else if (!force && (r_mode == REPEAT_OFF) && (source_head == source_head->pl_next))
r_mode = REPEAT_SONG;
if (!cur_streaming)
ps = head;
else
ps = (shuffle) ? cur_streaming->shuffle_next : cur_streaming->pl_next;
switch (r_mode)
{
case REPEAT_SONG:
if (cur_streaming->ctx)
ret = transcode_seek(cur_streaming->ctx, 0);
else
ret = source_open(cur_streaming);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Failed to restart song for song repeat\n");
return -1;
}
return 0;
case REPEAT_ALL:
if (!shuffle)
{
limit = ps;
break;
}
/* Reshuffle before repeating playlist */
if (cur_streaming && (ps == shuffle_head))
{
source_reshuffle();
ps = shuffle_head;
}
limit = shuffle_head;
break;
case REPEAT_OFF:
limit = head;
if (force && (ps == limit))
{
DPRINTF(E_DBG, L_PLAYER, "End of playlist reached and repeat is OFF\n");
playback_stop(NULL);
return 0;
}
break;
}
do
{
ret = source_open(ps);
if (ret < 0)
{
if (shuffle)
ps = ps->shuffle_next;
else
ps = ps->pl_next;
continue;
}
break;
}
while (ps != limit);
/* Couldn't open any of the files in our queue */
if (ret < 0)
{
DPRINTF(E_WARN, L_PLAYER, "Could not open any file in the queue (next)\n");
return -1;
}
if (!force && cur_streaming)
cur_streaming->play_next = ps;
cur_streaming = ps;
return 0;
}
static int
source_prev(void)
{
struct player_source *ps;
struct player_source *head;
struct player_source *limit;
int ret;
if (!cur_streaming)
return -1;
head = (shuffle) ? shuffle_head : source_head;
ps = (shuffle) ? cur_streaming->shuffle_prev : cur_streaming->pl_prev;
limit = ps;
if ((repeat == REPEAT_OFF) && (cur_streaming == head))
{
DPRINTF(E_DBG, L_PLAYER, "Start of playlist reached and repeat is OFF\n");
playback_stop(NULL);
return 0;
}
/* We are not reshuffling on prev calls in the shuffle case - should we? */
do
{
ret = source_open(ps);
if (ret < 0)
{
if (shuffle)
ps = ps->shuffle_prev;
else
ps = ps->pl_prev;
continue;
}
break;
}
while (ps != limit);
/* Couldn't open any of the files in our queue */
if (ret < 0)
{
DPRINTF(E_WARN, L_PLAYER, "Could not open any file in the queue (prev)\n");
return -1;
}
cur_streaming = ps;
return 0;
}
static int
source_position(struct player_source *ps)
{
struct player_source *p;
int ret;
ret = 0;
for (p = source_head; p != ps; p = p->pl_next)
ret++;
return ret;
}
static uint64_t
source_check(void)
{
struct timespec ts;
struct player_source *ps;
struct player_source *head;
uint64_t pos;
enum repeat_mode r_mode;
int i;
int ret;
if (!cur_streaming)
return 0;
ret = player_get_current_pos(&pos, &ts, 0);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Couldn't get current playback position\n");
return 0;
}
if (!cur_playing)
{
if (pos >= cur_streaming->output_start)
{
cur_playing = cur_streaming;
status_update(PLAY_PLAYING);
}
return pos;
}
if ((cur_playing->end == 0) || (pos < cur_playing->end))
return pos;
r_mode = repeat;
/* Playlist has only one file, treat REPEAT_ALL as REPEAT_SONG */
if ((r_mode == REPEAT_ALL) && (source_head == source_head->pl_next))
r_mode = REPEAT_SONG;
if (r_mode == REPEAT_SONG)
{
ps = cur_playing;
/* Check that we haven't gone to the next file already
* (repeat song toggled in the last 2 seconds of a song)
*/
if (cur_playing->play_next)
{
cur_playing = cur_playing->play_next;
if (ps->ctx)
{
transcode_cleanup(ps->ctx);
ps->ctx = NULL;
ps->play_next = NULL;
}
}
cur_playing->stream_start = ps->end + 1;
cur_playing->output_start = cur_playing->stream_start;
/* Do not use cur_playing to reset the end position, it may have changed */
ps->end = 0;
status_update(PLAY_PLAYING);
return pos;
}
head = (shuffle) ? shuffle_head : source_head;
i = 0;
while (cur_playing && (cur_playing->end != 0) && (pos > cur_playing->end))
{
i++;
/* Stop playback if:
* - at end of playlist (NULL)
* - repeat OFF and at end of playlist (wraparound)
*/
if (!cur_playing->play_next
|| ((r_mode == REPEAT_OFF) && (cur_playing->play_next == head)))
{
playback_stop(NULL);
return pos;
}
ps = cur_playing;
cur_playing = cur_playing->play_next;
cur_playing->stream_start = ps->end + 1;
cur_playing->output_start = cur_playing->stream_start;
if (ps->ctx)
{
transcode_cleanup(ps->ctx);
ps->ctx = NULL;
ps->play_next = NULL;
}
}
if (i > 0)
{
DPRINTF(E_DBG, L_PLAYER, "Playback switched to next song\n");
status_update(PLAY_PLAYING);
}
return pos;
}
static void
source_read(uint8_t *buf, int len, uint64_t rtptime)
{
int new;
int ret;
int nbytes;
if (!cur_streaming)
return;
nbytes = 0;
new = 0;
while (nbytes < len)
{
if (new)
{
DPRINTF(E_DBG, L_PLAYER, "New file\n");
new = 0;
ret = source_next(0);
if (ret < 0)
return;
}
if (EVBUFFER_LENGTH(audio_buf) == 0)
{
ret = transcode(cur_streaming->ctx, audio_buf, len - nbytes);
if (ret <= 0)
{
/* EOF or error */
cur_streaming->end = rtptime + BTOS(nbytes) - 1;
new = 1;
continue;
}
}
nbytes += evbuffer_remove(audio_buf, buf + nbytes, len - nbytes);
}
}
static void
playback_write(void)
{
uint8_t rawbuf[AIRTUNES_V2_PACKET_SAMPLES * 2 * 2];
source_check();
/* Make sure playback is still running after source_check() */
if (player_state == PLAY_STOPPED)
return;
last_rtptime += AIRTUNES_V2_PACKET_SAMPLES;
memset(rawbuf, 0, sizeof(rawbuf));
source_read(rawbuf, sizeof(rawbuf), last_rtptime);
if (laudio_status & LAUDIO_F_STARTED)
laudio_write(rawbuf, last_rtptime);
if (raop_sessions > 0)
raop_v2_write(rawbuf, last_rtptime);
}
#if defined(__linux__)
static void
player_playback_cb(int fd, short what, void *arg)
{
struct itimerspec next;
uint64_t ticks;
int ret;
/* Acknowledge timer */
read(fd, &ticks, sizeof(ticks));
playback_write();
/* Make sure playback is still running */
if (player_state == PLAY_STOPPED)
return;
pb_timer_last.tv_nsec += AIRTUNES_V2_STREAM_PERIOD;
if (pb_timer_last.tv_nsec >= 1000000000)
{
pb_timer_last.tv_sec++;
pb_timer_last.tv_nsec -= 1000000000;
}
next.it_interval.tv_sec = 0;
next.it_interval.tv_nsec = 0;
next.it_value.tv_sec = pb_timer_last.tv_sec;
next.it_value.tv_nsec = pb_timer_last.tv_nsec;
ret = timerfd_settime(pb_timer_fd, TFD_TIMER_ABSTIME, &next, NULL);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not set playback timer: %s\n", strerror(errno));
playback_stop(NULL);
return;
}
ret = event_add(&pb_timer_ev, NULL);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not re-add playback timer event\n");
playback_stop(NULL);
return;
}
}
#endif /* __linux__ */
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
static void
player_playback_cb(int fd, short what, void *arg)
{
struct timespec ts;
struct kevent kev;
int ret;
ts.tv_sec = 0;
ts.tv_nsec = 0;
while (kevent(pb_timer_fd, NULL, 0, &kev, 1, &ts) > 0)
{
if (kev.filter != EVFILT_TIMER)
continue;
playback_write();
/* Make sure playback is still running */
if (player_state == PLAY_STOPPED)
return;
}
ret = event_add(&pb_timer_ev, NULL);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not re-add playback timer event\n");
playback_stop(NULL);
return;
}
}
#endif /* __FreeBSD__ || __FreeBSD_kernel__ */
static void
device_free(struct raop_device *dev)
{
free(dev->name);
if (dev->v4_address)
free(dev->v4_address);
if (dev->v6_address)
free(dev->v6_address);
free(dev);
}
/* Helpers - call with dev_lck held */
static void
device_remove(struct raop_device *dev)
{
struct raop_device *rd;
struct raop_device *prev;
prev = NULL;
for (rd = dev_list; rd; rd = rd->next)
{
if (rd == dev)
break;
prev = rd;
}
if (!rd)
return;
DPRINTF(E_DBG, L_PLAYER, "Removing AirTunes device %s; stopped advertising\n", dev->name);
if (!prev)
dev_list = dev->next;
else
prev->next = dev->next;
device_free(dev);
}
static int
device_check(struct raop_device *dev)
{
struct raop_device *rd;
for (rd = dev_list; rd; rd = rd->next)
{
if (rd == dev)
break;
}
return (rd) ? 0 : -1;
}
/* RAOP callbacks executed in the player thread */
static void
device_streaming_cb(struct raop_device *dev, struct raop_session *rs, enum raop_session_state status)
{
int ret;
pthread_mutex_lock(&dev_lck);
if (status == RAOP_FAILED)
{
raop_sessions--;
ret = device_check(dev);
if (ret < 0)
{
pthread_mutex_unlock(&dev_lck);
DPRINTF(E_WARN, L_PLAYER, "AirTunes device disappeared during streaming!\n");
return;
}
DPRINTF(E_LOG, L_PLAYER, "AirTunes device %s FAILED\n", dev->name);
if (player_state == PLAY_PLAYING)
dev->selected = 0;
dev->session = NULL;
if (!dev->advertised)
device_remove(dev);
}
else if (status == RAOP_STOPPED)
{
raop_sessions--;
ret = device_check(dev);
if (ret < 0)
{
pthread_mutex_unlock(&dev_lck);
DPRINTF(E_WARN, L_PLAYER, "AirTunes device disappeared during streaming!\n");
return;
}
DPRINTF(E_LOG, L_PLAYER, "AirTunes device %s stopped\n", dev->name);
dev->session = NULL;
if (!dev->advertised)
device_remove(dev);
}
pthread_mutex_unlock(&dev_lck);
}
static void
device_command_cb(struct raop_device *dev, struct raop_session *rs, enum raop_session_state status)
{
cmd.raop_pending--;
raop_set_status_cb(rs, device_streaming_cb);
if (status == RAOP_FAILED)
device_streaming_cb(dev, rs, status);
if (cmd.raop_pending == 0)
{
if (cmd.func_bh)
cmd.ret = cmd.func_bh(cmd.arg);
else
cmd.ret = 0;
pthread_cond_signal(&cmd_cond);
pthread_mutex_unlock(&cmd_lck);
}
}
static void
device_shutdown_cb(struct raop_device *dev, struct raop_session *rs, enum raop_session_state status)
{
int ret;
cmd.raop_pending--;
if (raop_sessions)
raop_sessions--;
pthread_mutex_lock(&dev_lck);
ret = device_check(dev);
if (ret < 0)
{
pthread_mutex_unlock(&dev_lck);
DPRINTF(E_WARN, L_PLAYER, "AirTunes device disappeared before shutdown completion!\n");
if (cmd.ret != -2)
cmd.ret = -1;
goto out;
}
dev->session = NULL;
if (!dev->advertised)
device_remove(dev);
pthread_mutex_unlock(&dev_lck);
out:
if (cmd.raop_pending == 0)
{
/* cmd.ret already set
* - to 0 (or -2 if password issue) in speaker_set()
* - to -1 above on error
*/
pthread_cond_signal(&cmd_cond);
pthread_mutex_unlock(&cmd_lck);
}
}
static void
device_lost_cb(struct raop_device *dev, struct raop_session *rs, enum raop_session_state status)
{
/* We lost that device during startup for some reason, not much we can do here */
if (status == RAOP_FAILED)
DPRINTF(E_WARN, L_PLAYER, "Failed to stop lost device\n");
else
DPRINTF(E_INFO, L_PLAYER, "Lost device stopped properly\n");
}
static void
device_activate_cb(struct raop_device *dev, struct raop_session *rs, enum raop_session_state status)
{
struct timespec ts;
int ret;
cmd.raop_pending--;
pthread_mutex_lock(&dev_lck);
ret = device_check(dev);
if (ret < 0)
{
pthread_mutex_unlock(&dev_lck);
DPRINTF(E_WARN, L_PLAYER, "AirTunes device disappeared during startup!\n");
raop_set_status_cb(rs, device_lost_cb);
raop_device_stop(rs);
if (cmd.ret != -2)
cmd.ret = -1;
goto out;
}
if (status == RAOP_PASSWORD)
{
status = RAOP_FAILED;
cmd.ret = -2;
}
if (status == RAOP_FAILED)
{
dev->selected = 0;
if (!dev->advertised)
device_remove(dev);
pthread_mutex_unlock(&dev_lck);
if (cmd.ret != -2)
cmd.ret = -1;
goto out;
}
dev->session = rs;
pthread_mutex_unlock(&dev_lck);
raop_sessions++;
if ((player_state == PLAY_PLAYING) && (raop_sessions == 1))
{
ret = clock_gettime(CLOCK_MONOTONIC, &ts);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not get current time: %s\n", strerror(errno));
#if defined(__linux__)
/* Fallback to nearest timer expiration time */
ts.tv_sec = pb_timer_last.tv_sec;
ts.tv_nsec = pb_timer_last.tv_nsec;
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
if (cmd.ret != -2)
cmd.ret = -1;
goto out;
#endif
}
raop_playback_start(last_rtptime + AIRTUNES_V2_PACKET_SAMPLES, &ts);
}
raop_set_status_cb(rs, device_streaming_cb);
out:
if (cmd.raop_pending == 0)
{
/* cmd.ret already set
* - to 0 in speaker_set() (default)
* - to -2 above if password issue
* - to -1 above on error
*/
pthread_cond_signal(&cmd_cond);
pthread_mutex_unlock(&cmd_lck);
}
}
static void
device_probe_cb(struct raop_device *dev, struct raop_session *rs, enum raop_session_state status)
{
int ret;
cmd.raop_pending--;
pthread_mutex_lock(&dev_lck);
ret = device_check(dev);
if (ret < 0)
{
pthread_mutex_unlock(&dev_lck);
DPRINTF(E_WARN, L_PLAYER, "AirTunes device disappeared during probe!\n");
if (cmd.ret != -2)
cmd.ret = -1;
goto out;
}
if (status == RAOP_PASSWORD)
{
status = RAOP_FAILED;
cmd.ret = -2;
}
if (status == RAOP_FAILED)
{
dev->selected = 0;
if (!dev->advertised)
device_remove(dev);
pthread_mutex_unlock(&dev_lck);
if (cmd.ret != -2)
cmd.ret = -1;
goto out;
}
pthread_mutex_unlock(&dev_lck);
out:
if (cmd.raop_pending == 0)
{
/* cmd.ret already set
* - to 0 in speaker_set() (default)
* - to -2 above if password issue
* - to -1 above on error
*/
pthread_cond_signal(&cmd_cond);
pthread_mutex_unlock(&cmd_lck);
}
}
static void
device_restart_cb(struct raop_device *dev, struct raop_session *rs, enum raop_session_state status)
{
int ret;
cmd.raop_pending--;
pthread_mutex_lock(&dev_lck);
ret = device_check(dev);
if (ret < 0)
{
pthread_mutex_unlock(&dev_lck);
DPRINTF(E_WARN, L_PLAYER, "AirTunes device disappeared during restart!\n");
raop_set_status_cb(rs, device_lost_cb);
raop_device_stop(rs);
goto out;
}
if (status == RAOP_FAILED)
{
dev->selected = 0;
if (!dev->advertised)
device_remove(dev);
pthread_mutex_unlock(&dev_lck);
goto out;
}
dev->session = rs;
pthread_mutex_unlock(&dev_lck);
raop_sessions++;
raop_set_status_cb(rs, device_streaming_cb);
out:
if (cmd.raop_pending == 0)
{
cmd.ret = cmd.func_bh(cmd.arg);
pthread_cond_signal(&cmd_cond);
pthread_mutex_unlock(&cmd_lck);
}
}
/* Actual commands, executed in the player thread */
static int
get_status(void *arg)
{
struct timespec ts;
struct player_source *ps;
struct player_status *status;
uint64_t pos;
int ret;
status = (struct player_status *)arg;
status->shuffle = shuffle;
status->repeat = repeat;
status->volume = volume;
status->plid = cur_plid;
switch (player_state)
{
case PLAY_STOPPED:
DPRINTF(E_DBG, L_PLAYER, "Player status: stopped\n");
status->status = PLAY_STOPPED;
break;
case PLAY_PAUSED:
DPRINTF(E_DBG, L_PLAYER, "Player status: paused\n");
status->status = PLAY_PAUSED;
status->id = cur_streaming->id;
pos = last_rtptime + AIRTUNES_V2_PACKET_SAMPLES - cur_streaming->stream_start;
status->pos_ms = (pos * 1000) / 44100;
status->pos_pl = source_position(cur_streaming);
break;
case PLAY_PLAYING:
if (!cur_playing)
{
DPRINTF(E_DBG, L_PLAYER, "Player status: playing (buffering)\n");
status->status = PLAY_PAUSED;
ps = cur_streaming;
/* Avoid a visible 2-second jump backward for the client */
pos = ps->output_start - ps->stream_start;
}
else
{
DPRINTF(E_DBG, L_PLAYER, "Player status: playing\n");
status->status = PLAY_PLAYING;
ps = cur_playing;
ret = player_get_current_pos(&pos, &ts, 0);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not get current stream position for playstatus\n");
pos = 0;
}
if (pos < ps->stream_start)
pos = 0;
else
pos -= ps->stream_start;
}
status->pos_ms = (pos * 1000) / 44100;
status->id = ps->id;
status->pos_pl = source_position(ps);
break;
}
return 0;
}
static int
now_playing(void *arg)
{
uint32_t *id;
id = (uint32_t *)arg;
if (cur_playing)
*id = cur_playing->id;
else if (cur_streaming)
*id = cur_streaming->id;
else
return -1;
return 0;
}
static int
playback_stop(void *arg)
{
if (laudio_status != LAUDIO_CLOSED)
laudio_close();
if (raop_sessions > 0)
raop_playback_stop();
if (event_initialized(&pb_timer_ev))
event_del(&pb_timer_ev);
close(pb_timer_fd);
pb_timer_fd = -1;
if (cur_playing)
source_stop(cur_playing);
else
source_stop(cur_streaming);
cur_playing = NULL;
cur_streaming = NULL;
evbuffer_drain(audio_buf, EVBUFFER_LENGTH(audio_buf));
status_update(PLAY_STOPPED);
return 0;
}
/* Playback startup bottom half */
static int
playback_start_bh(void *arg)
{
#if defined(__linux__)
struct itimerspec next;
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
struct kevent kev;
#endif
int ret;
if ((laudio_status == LAUDIO_CLOSED) && (raop_sessions == 0))
{
DPRINTF(E_LOG, L_PLAYER, "Cannot start playback: no output started\n");
goto out_fail;
}
/* Start laudio first as it can fail, but can be stopped easily if needed */
if (laudio_status == LAUDIO_OPEN)
{
laudio_set_volume(volume);
ret = laudio_start(pb_pos, last_rtptime + AIRTUNES_V2_PACKET_SAMPLES);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Local audio failed to start\n");
goto out_fail;
}
}
ret = clock_gettime(CLOCK_MONOTONIC, &pb_pos_stamp);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Couldn't get current clock: %s\n", strerror(errno));
goto out_fail;
}
memset(&pb_timer_ev, 0, sizeof(struct event));
#if defined(__linux__)
pb_timer_last.tv_sec = pb_pos_stamp.tv_sec;
pb_timer_last.tv_nsec = pb_pos_stamp.tv_nsec;
pb_timer_fd = timerfd_create(CLOCK_MONOTONIC, TFD_CLOEXEC);
if (pb_timer_fd < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not create playback timer: %s\n", strerror(errno));
goto out_fail;
}
next.it_interval.tv_sec = 0;
next.it_interval.tv_nsec = 0;
next.it_value.tv_sec = pb_timer_last.tv_sec;
next.it_value.tv_nsec = pb_timer_last.tv_nsec;
ret = timerfd_settime(pb_timer_fd, TFD_TIMER_ABSTIME, &next, NULL);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not set playback timer: %s\n", strerror(errno));
goto out_fail;
}
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
pb_timer_fd = kqueue();
if (pb_timer_fd < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not create kqueue: %s\n", strerror(errno));
goto out_fail;
}
memset(&kev, 0, sizeof(struct kevent));
EV_SET(&kev, 1, EVFILT_TIMER, EV_ADD | EV_ENABLE, 0, AIRTUNES_V2_STREAM_PERIOD, 0);
ret = kevent(pb_timer_fd, &kev, 1, NULL, 0, NULL);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not add kevent timer: %s\n", strerror(errno));
goto out_fail;
}
#endif
event_set(&pb_timer_ev, pb_timer_fd, EV_READ, player_playback_cb, NULL);
event_base_set(evbase_player, &pb_timer_ev);
ret = event_add(&pb_timer_ev, NULL);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not set up playback timer event\n");
goto out_fail;
}
/* Everything OK, start RAOP */
if (raop_sessions > 0)
raop_playback_start(last_rtptime + AIRTUNES_V2_PACKET_SAMPLES, &pb_pos_stamp);
status_update(PLAY_PLAYING);
return 0;
out_fail:
close(pb_timer_fd);
pb_timer_fd = -1;
playback_stop(NULL);
return -1;
}
static int
playback_start(void *arg)
{
struct raop_device *rd;
uint32_t *idx_id;
int ret;
if (!source_head)
{
DPRINTF(E_LOG, L_PLAYER, "Nothing to play!\n");
return -1;
}
idx_id = (uint32_t *)arg;
if (player_state == PLAY_PLAYING)
{
if (idx_id)
{
if (cur_playing)
*idx_id = cur_playing->id;
else
*idx_id = cur_streaming->id;
}
status_update(player_state);
return 0;
}
pb_pos = last_rtptime + AIRTUNES_V2_PACKET_SAMPLES - 88200;
if (idx_id)
{
if (cur_playing)
source_stop(cur_playing);
else if (cur_streaming)
source_stop(cur_streaming);
cur_playing = NULL;
cur_streaming = NULL;
if (shuffle)
{
source_reshuffle();
cur_streaming = shuffle_head;
}
else
cur_streaming = source_head;
if (*idx_id > 0)
{
cur_streaming = source_head;
for (; *idx_id > 0; (*idx_id)--)
cur_streaming = cur_streaming->pl_next;
if (shuffle)
shuffle_head = cur_streaming;
}
ret = source_open(cur_streaming);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Couldn't jump to queue position %d\n", *idx_id);
playback_stop(NULL);
return -1;
}
*idx_id = cur_streaming->id;
cur_streaming->stream_start = last_rtptime + AIRTUNES_V2_PACKET_SAMPLES;
cur_streaming->output_start = cur_streaming->stream_start;
}
else if (!cur_streaming)
{
if (shuffle)
source_reshuffle();
ret = source_next(0);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Couldn't find anything to play!\n");
playback_stop(NULL);
return -1;
}
cur_streaming->stream_start = last_rtptime + AIRTUNES_V2_PACKET_SAMPLES;
cur_streaming->output_start = cur_streaming->stream_start;
}
/* Start local audio if needed */
if (laudio_selected && (laudio_status == LAUDIO_CLOSED))
{
ret = laudio_open();
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not open local audio\n");
playback_stop(NULL);
return -1;
}
}
/* Start RAOP sessions on selected devices if needed */
cmd.raop_pending = 0;
pthread_mutex_lock(&dev_lck);
for (rd = dev_list; rd; rd = rd->next)
{
if (rd->selected && !rd->session)
{
ret = raop_device_start(rd, device_restart_cb, last_rtptime + AIRTUNES_V2_PACKET_SAMPLES);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not start selected AirTunes device %s\n", rd->name);
continue;
}
cmd.raop_pending++;
}
}
pthread_mutex_unlock(&dev_lck);
if ((laudio_status == LAUDIO_CLOSED) && (cmd.raop_pending == 0) && (raop_sessions == 0))
{
DPRINTF(E_LOG, L_PLAYER, "Could not start playback: no output selected or couldn't start any output\n");
playback_stop(NULL);
return -1;
}
/* We're async if we need to start RAOP devices */
if (cmd.raop_pending > 0)
return 1; /* async */
/* Otherwise, just run the bottom half */
return playback_start_bh(arg);
}
static int
playback_prev_bh(void *arg)
{
int ret;
if (cur_playing)
source_stop(cur_playing);
else
source_stop(cur_streaming);
ret = source_prev();
if (ret < 0)
{
playback_stop(NULL);
return -1;
}
if (player_state == PLAY_STOPPED)
return -1;
cur_streaming->stream_start = last_rtptime + AIRTUNES_V2_PACKET_SAMPLES;
cur_streaming->output_start = cur_streaming->stream_start;
cur_playing = NULL;
/* Silent status change - playback_start() sends the real status update */
player_state = PLAY_PAUSED;
return 0;
}
static int
playback_next_bh(void *arg)
{
int ret;
if (cur_playing)
source_stop(cur_playing);
else
source_stop(cur_streaming);
ret = source_next(1);
if (ret < 0)
{
playback_stop(NULL);
return -1;
}
if (player_state == PLAY_STOPPED)
return -1;
cur_streaming->stream_start = last_rtptime + AIRTUNES_V2_PACKET_SAMPLES;
cur_streaming->output_start = cur_streaming->stream_start;
cur_playing = NULL;
/* Silent status change - playback_start() sends the real status update */
player_state = PLAY_PAUSED;
return 0;
}
static int
playback_seek_bh(void *arg)
{
struct player_source *ps;
int ms;
int ret;
ms = *(int *)arg;
if (cur_playing)
ps = cur_playing;
else
ps = cur_streaming;
ps->end = 0;
/* Seek to commanded position */
ret = transcode_seek(ps->ctx, ms);
if (ret < 0)
{
playback_stop(NULL);
return -1;
}
/* Adjust start_pos for the new position */
ps->stream_start = last_rtptime + AIRTUNES_V2_PACKET_SAMPLES - ((uint64_t)ret * 44100) / 1000;
ps->output_start = last_rtptime + AIRTUNES_V2_PACKET_SAMPLES;
cur_streaming = ps;
cur_playing = NULL;
/* Silent status change - playback_start() sends the real status update */
player_state = PLAY_PAUSED;
return 0;
}
static int
playback_pause_bh(void *arg)
{
struct player_source *ps;
uint64_t pos;
int ms;
int ret;
if (cur_playing)
ps = cur_playing;
else
ps = cur_streaming;
pos = ps->end;
ps->end = 0;
/* Seek back to current playback position */
pos -= ps->stream_start;
ms = (int)((pos * 1000) / 44100);
ret = transcode_seek(ps->ctx, ms);
if (ret < 0)
{
playback_stop(NULL);
return -1;
}
/* Adjust start_pos to take into account the pause and seek back */
ps->stream_start = last_rtptime + AIRTUNES_V2_PACKET_SAMPLES - ((uint64_t)ret * 44100) / 1000;
ps->output_start = last_rtptime + AIRTUNES_V2_PACKET_SAMPLES;
cur_streaming = ps;
cur_playing = NULL;
status_update(PLAY_PAUSED);
return 0;
}
static int
playback_pause(void *arg)
{
struct player_source *ps;
uint64_t pos;
pos = source_check();
if (pos == 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not retrieve current position for pause\n");
return playback_stop(arg);
}
/* Make sure playback is still running after source_check() */
if (player_state == PLAY_STOPPED)
return -1;
if (cur_playing)
ps = cur_playing;
else
ps = cur_streaming;
/* Store pause position */
ps->end = pos;
cmd.raop_pending = raop_flush(device_command_cb, last_rtptime + AIRTUNES_V2_PACKET_SAMPLES);
if (laudio_status != LAUDIO_CLOSED)
laudio_stop();
if (event_initialized(&pb_timer_ev))
event_del(&pb_timer_ev);
close(pb_timer_fd);
pb_timer_fd = -1;
if (ps->play_next)
source_stop(ps->play_next);
cur_playing = NULL;
cur_streaming = ps;
cur_streaming->play_next = NULL;
evbuffer_drain(audio_buf, EVBUFFER_LENGTH(audio_buf));
/* We're async if we need to flush RAOP devices */
if (cmd.raop_pending > 0)
return 1; /* async */
/* Otherwise, just run the bottom half */
return cmd.func_bh(arg);
}
static int
speaker_activate(struct raop_device *rd)
{
struct timespec ts;
uint64_t pos;
int ret;
if (!rd)
{
/* Local */
DPRINTF(E_DBG, L_PLAYER, "Activating local audio\n");
if (laudio_status == LAUDIO_CLOSED)
{
ret = laudio_open();
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not open local audio\n");
return -1;
}
}
if (player_state == PLAY_PLAYING)
{
laudio_set_volume(volume);
ret = player_get_current_pos(&pos, &ts, 0);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not get current stream position for local audio start\n");
laudio_close();
return -1;
}
ret = laudio_start(pos, last_rtptime + AIRTUNES_V2_PACKET_SAMPLES);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Local playback failed to start\n");
laudio_close();
return -1;
}
}
return 0;
}
else
{
/* RAOP */
if (player_state == PLAY_PLAYING)
{
DPRINTF(E_DBG, L_PLAYER, "Activating RAOP device %s\n", rd->name);
ret = raop_device_start(rd, device_activate_cb, last_rtptime + AIRTUNES_V2_PACKET_SAMPLES);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not start device %s\n", rd->name);
return -1;
}
}
else
{
DPRINTF(E_DBG, L_PLAYER, "Probing RAOP device %s\n", rd->name);
ret = raop_device_probe(rd, device_probe_cb);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not probe device %s\n", rd->name);
return -1;
}
}
cmd.raop_pending++;
return 0;
}
return -1;
}
static int
speaker_deactivate(struct raop_device *rd)
{
if (!rd)
{
/* Local */
DPRINTF(E_DBG, L_PLAYER, "Deactivating local audio\n");
if (laudio_status == LAUDIO_CLOSED)
return 0;
if (laudio_status & LAUDIO_F_STARTED)
laudio_stop();
laudio_close();
return 0;
}
else
{
/* RAOP */
DPRINTF(E_DBG, L_PLAYER, "Deactivating RAOP device %s\n", rd->name);
raop_set_status_cb(rd->session, device_shutdown_cb);
raop_device_stop(rd->session);
cmd.raop_pending++;
return 0;
}
return -1;
}
static int
speaker_set(void *arg)
{
struct raop_device *rd;
uint64_t *ids;
int nspk;
int i;
int ret;
ids = (uint64_t *)arg;
if (ids)
nspk = ids[0];
else
nspk = 0;
DPRINTF(E_DBG, L_PLAYER, "Speaker set: %d speakers\n", nspk);
cmd.raop_pending = 0;
cmd.ret = 0;
pthread_mutex_lock(&dev_lck);
/* RAOP devices */
for (rd = dev_list; rd; rd = rd->next)
{
for (i = 1; i <= nspk; i++)
{
DPRINTF(E_DBG, L_PLAYER, "Set %" PRIu64 " device %" PRIu64 "\n", ids[i], rd->id);
if (ids[i] == rd->id)
break;
}
if (i <= nspk)
{
if (rd->has_password && !rd->password)
{
DPRINTF(E_INFO, L_PLAYER, "RAOP device %s is password-protected, but we don't have it\n", rd->name);
cmd.ret = -2;
continue;
}
DPRINTF(E_DBG, L_PLAYER, "RAOP device %s selected\n", rd->name);
rd->selected = 1;
if (!rd->session)
{
ret = speaker_activate(rd);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not activate RAOP device %s\n", rd->name);
rd->selected = 0;
if (cmd.ret != -2)
cmd.ret = -1;
}
}
}
else
{
DPRINTF(E_DBG, L_PLAYER, "RAOP device %s NOT selected\n", rd->name);
rd->selected = 0;
if (rd->session)
{
ret = speaker_deactivate(rd);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not deactivate RAOP device %s\n", rd->name);
if (cmd.ret != -2)
cmd.ret = -1;
}
}
}
}
pthread_mutex_unlock(&dev_lck);
/* Local audio */
for (i = 1; i <= nspk; i++)
{
if (ids[i] == 0)
break;
}
if (i <= nspk)
{
DPRINTF(E_DBG, L_PLAYER, "Local audio selected\n");
laudio_selected = 1;
if (!(laudio_status & LAUDIO_F_STARTED))
{
ret = speaker_activate(NULL);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not activate local audio output\n");
laudio_selected = 0;
if (cmd.ret != -2)
cmd.ret = -1;
}
}
}
else
{
DPRINTF(E_DBG, L_PLAYER, "Local audio NOT selected\n");
laudio_selected = 0;
if (laudio_status != LAUDIO_CLOSED)
{
ret = speaker_deactivate(NULL);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not deactivate local audio output\n");
if (cmd.ret != -2)
cmd.ret = -1;
}
}
}
if (cmd.raop_pending > 0)
return 1; /* async */
return cmd.ret;
}
static int
volume_set(void *arg)
{
int vol;
int ret;
vol = *(int *)arg;
volume = vol;
cmd.raop_pending = raop_set_volume(volume, device_command_cb);
laudio_set_volume(volume);
ret = db_config_save_int(VAR_PLAYER_VOLUME, volume);
if (ret < 0)
DPRINTF(E_WARN, L_PLAYER, "Could not save volume setting to DB\n");
if (cmd.raop_pending > 0)
return 1; /* async */
return 0;
}
static int
repeat_set(void *arg)
{
enum repeat_mode *mode;
mode = (enum repeat_mode *)arg;
switch (*mode)
{
case REPEAT_OFF:
case REPEAT_SONG:
case REPEAT_ALL:
repeat = *mode;
break;
default:
DPRINTF(E_LOG, L_PLAYER, "Invalid repeat mode: %d\n", *mode);
return -1;
}
return 0;
}
static int
shuffle_set(void *arg)
{
int *enable;
enable = (int *)arg;
switch (*enable)
{
case 1:
if (!shuffle)
source_reshuffle();
/* FALLTHROUGH*/
case 0:
shuffle = *enable;
break;
default:
DPRINTF(E_LOG, L_PLAYER, "Invalid shuffle mode: %d\n", *enable);
return -1;
}
return 0;
}
static int
queue_add(void *arg)
{
struct player_source *ps;
struct player_source *ps_shuffle;
struct player_source *source_tail;
struct player_source *ps_tail;
ps = (struct player_source *)arg;
ps_shuffle = source_shuffle(ps);
if (!ps_shuffle)
ps_shuffle = ps;
if (source_head)
{
/* Playlist order */
source_tail = source_head->pl_prev;
ps_tail = ps->pl_prev;
source_tail->pl_next = ps;
ps_tail->pl_next = source_head;
source_head->pl_prev = ps_tail;
ps->pl_prev = source_tail;
/* Shuffle */
source_tail = shuffle_head->shuffle_prev;
ps_tail = ps_shuffle->shuffle_prev;
source_tail->shuffle_next = ps_shuffle;
ps_tail->shuffle_next = shuffle_head;
shuffle_head->shuffle_prev = ps_tail;
ps_shuffle->shuffle_prev = source_tail;
}
else
{
source_head = ps;
shuffle_head = ps_shuffle;
}
if (cur_plid != 0)
cur_plid = 0;
return 0;
}
static int
queue_clear(void *arg)
{
struct player_source *ps;
if (!source_head)
return 0;
shuffle_head = NULL;
source_head->pl_prev->pl_next = NULL;
for (ps = source_head; ps; ps = source_head)
{
source_head = ps->pl_next;
source_free(ps);
}
cur_plid = 0;
return 0;
}
static int
queue_plid(void *arg)
{
uint32_t *plid;
if (!source_head)
return 0;
plid = (uint32_t *)arg;
cur_plid = *plid;
return 0;
}
static int
set_update_handler(void *arg)
{
player_status_handler handler;
handler = (player_status_handler)arg;
update_handler = handler;
return 0;
}
/* Command helpers */
/* Thread: player */
static void
command_cb(int fd, short what, void *arg)
{
int ret;
#ifdef USE_EVENTFD
eventfd_t count;
ret = eventfd_read(cmd_efd, &count);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not read event counter: %s\n", strerror(errno));
goto readd;
}
#else
int dummy;
read(cmd_pipe[0], &dummy, sizeof(dummy));
#endif
pthread_mutex_lock(&cmd_lck);
ret = cmd.func(cmd.arg);
if (ret <= 0)
{
cmd.ret = ret;
pthread_cond_signal(&cmd_cond);
pthread_mutex_unlock(&cmd_lck);
}
/* ret > 0 means command is asynchronous and will unlock and signal
* by itself upon completion
*/
#ifdef USE_EVENTFD
readd:
#endif
event_add(&cmdev, NULL);
}
/* Thread: httpd (DACP) */
/* Must be called with cmd_lck held */
static int
sync_command(void)
{
#ifndef USE_EVENTFD
int dummy = 42;
#endif
int ret;
if (!cmd.func)
{
DPRINTF(E_LOG, L_PLAYER, "BUG: cmd.func is NULL!\n");
return -1;
}
#ifdef USE_EVENTFD
ret = eventfd_write(cmd_efd, 1);
if (ret < 0)
#else
ret = write(cmd_pipe[1], &dummy, sizeof(dummy));
if (ret != sizeof(dummy))
#endif
{
DPRINTF(E_LOG, L_PLAYER, "Could not send command event: %s\n", strerror(errno));
return -1;
}
pthread_cond_wait(&cmd_cond, &cmd_lck);
ret = cmd.ret;
cmd.func = NULL;
cmd.func_bh = NULL;
cmd.arg = NULL;
return ret;
}
/* Player API executed in the httpd (DACP) thread */
int
player_get_status(struct player_status *status)
{
int ret;
pthread_mutex_lock(&cmd_lck);
cmd.func = get_status;
cmd.func_bh = NULL;
cmd.arg = status;
ret = sync_command();
pthread_mutex_unlock(&cmd_lck);
return ret;
}
int
player_now_playing(uint32_t *id)
{
int ret;
pthread_mutex_lock(&cmd_lck);
cmd.func = now_playing;
cmd.func_bh = NULL;
cmd.arg = id;
ret = sync_command();
pthread_mutex_unlock(&cmd_lck);
return ret;
}
int
player_playback_start(uint32_t *idx_id)
{
int ret;
pthread_mutex_lock(&cmd_lck);
cmd.func = playback_start;
cmd.func_bh = playback_start_bh;
cmd.arg = idx_id;
ret = sync_command();
pthread_mutex_unlock(&cmd_lck);
return ret;
}
int
player_playback_stop(void)
{
int ret;
pthread_mutex_lock(&cmd_lck);
cmd.func = playback_stop;
cmd.arg = NULL;
ret = sync_command();
pthread_mutex_unlock(&cmd_lck);
return ret;
}
int
player_playback_pause(void)
{
int ret;
pthread_mutex_lock(&cmd_lck);
cmd.func = playback_pause;
cmd.func_bh = playback_pause_bh;
cmd.arg = NULL;
ret = sync_command();
pthread_mutex_unlock(&cmd_lck);
return ret;
}
int
player_playback_seek(int ms)
{
int ret;
pthread_mutex_lock(&cmd_lck);
cmd.func = playback_pause;
cmd.func_bh = playback_seek_bh;
cmd.arg = &ms;
ret = sync_command();
pthread_mutex_unlock(&cmd_lck);
return ret;
}
int
player_playback_next(void)
{
int ret;
pthread_mutex_lock(&cmd_lck);
cmd.func = playback_pause;
cmd.func_bh = playback_next_bh;
cmd.arg = NULL;
ret = sync_command();
pthread_mutex_unlock(&cmd_lck);
return ret;
}
int
player_playback_prev(void)
{
int ret;
pthread_mutex_lock(&cmd_lck);
cmd.func = playback_pause;
cmd.func_bh = playback_prev_bh;
cmd.arg = NULL;
ret = sync_command();
pthread_mutex_unlock(&cmd_lck);
return ret;
}
void
player_speaker_enumerate(spk_enum_cb cb, void *arg)
{
struct raop_device *rd;
char *laudio_name;
laudio_name = cfg_getstr(cfg_getsec(cfg, "audio"), "nickname");
pthread_mutex_lock(&dev_lck);
/* Auto-select local audio if there are no AirTunes devices */
if (!dev_list)
laudio_selected = 1;
cb(0, laudio_name, laudio_selected, 0, arg);
for (rd = dev_list; rd; rd = rd->next)
{
if (rd->advertised)
cb(rd->id, rd->name, rd->selected, rd->has_password, arg);
}
pthread_mutex_unlock(&dev_lck);
}
int
player_speaker_set(uint64_t *ids)
{
int ret;
pthread_mutex_lock(&cmd_lck);
cmd.func = speaker_set;
cmd.func_bh = NULL;
cmd.arg = ids;
ret = sync_command();
pthread_mutex_unlock(&cmd_lck);
return ret;
}
int
player_volume_set(int vol)
{
int ret;
pthread_mutex_lock(&cmd_lck);
cmd.func = volume_set;
cmd.func_bh = NULL;
cmd.arg = &vol;
ret = sync_command();
pthread_mutex_unlock(&cmd_lck);
return ret;
}
int
player_repeat_set(enum repeat_mode mode)
{
int ret;
pthread_mutex_lock(&cmd_lck);
cmd.func = repeat_set;
cmd.func_bh = NULL;
cmd.arg = &mode;
ret = sync_command();
pthread_mutex_unlock(&cmd_lck);
return ret;
}
int
player_shuffle_set(int enable)
{
int ret;
pthread_mutex_lock(&cmd_lck);
cmd.func = shuffle_set;
cmd.func_bh = NULL;
cmd.arg = &enable;
ret = sync_command();
pthread_mutex_unlock(&cmd_lck);
return ret;
}
int
player_queue_add(struct player_source *ps)
{
int ret;
pthread_mutex_lock(&cmd_lck);
cmd.func = queue_add;
cmd.func_bh = NULL;
cmd.arg = ps;
ret = sync_command();
pthread_mutex_unlock(&cmd_lck);
return ret;
}
void
player_queue_clear(void)
{
pthread_mutex_lock(&cmd_lck);
cmd.func = queue_clear;
cmd.func_bh = NULL;
cmd.arg = NULL;
sync_command();
pthread_mutex_unlock(&cmd_lck);
}
void
player_queue_plid(uint32_t plid)
{
pthread_mutex_lock(&cmd_lck);
cmd.func = queue_plid;
cmd.func_bh = NULL;
cmd.arg = &plid;
sync_command();
pthread_mutex_unlock(&cmd_lck);
}
void
player_set_update_handler(player_status_handler handler)
{
pthread_mutex_lock(&cmd_lck);
cmd.func = set_update_handler;
cmd.func_bh = NULL;
cmd.arg = handler;
sync_command();
pthread_mutex_unlock(&cmd_lck);
}
/* Thread: main (mdns) */
static void
raop_device_cb(const char *name, const char *type, const char *domain, const char *hostname, int family, const char *address, int port, AvahiStringList *txt)
{
struct player_status status;
AvahiStringList *p;
struct raop_device *rd;
struct raop_device *prev;
cfg_t *apex;
char *at_name;
char *password;
char *key;
char *val;
uint64_t id;
size_t valsz;
int has_password;
int encrypt;
int last_active;
int ret;
ret = safe_hextou64(name, &id);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not extract AirTunes device ID (%s)\n", name);
return;
}
at_name = strchr(name, '@');
if (!at_name)
{
DPRINTF(E_LOG, L_PLAYER, "Could not extract AirTunes device name (%s)\n", name);
return;
}
at_name++;
DPRINTF(E_DBG, L_PLAYER, "Found AirTunes device %" PRIx64 "/%s (%d)\n", id, at_name, port);
/* Check if the device was selected last time */
if (time(NULL) < dev_deadline)
{
player_get_status(&status);
if (status.status != PLAY_STOPPED)
last_active = 0;
else
{
ret = db_config_has_tuple_hex64(VAR_ACTIVE_SPK, id);
last_active = (ret == 1);
}
}
else
last_active = 0;
if (port < 0)
{
/* Device stopped advertising */
pthread_mutex_lock(&dev_lck);
prev = NULL;
for (rd = dev_list; rd; rd = rd->next)
{
if (rd->id == id)
break;
prev = rd;
}
if (!rd)
{
pthread_mutex_unlock(&dev_lck);
DPRINTF(E_WARN, L_PLAYER, "AirTunes device %s stopped advertising, but not in our list\n", name);
return;
}
switch (family)
{
case AF_INET:
if (rd->v4_address)
{
free(rd->v4_address);
rd->v4_address = NULL;
}
break;
case AF_INET6:
if (rd->v6_address)
{
free(rd->v6_address);
rd->v6_address = NULL;
}
break;
}
if (!rd->v4_address && !rd->v6_address)
{
rd->advertised = 0;
if (!rd->session)
{
if (!prev)
dev_list = rd->next;
else
prev->next = rd->next;
device_free(rd);
DPRINTF(E_DBG, L_PLAYER, "Removed AirTunes device %s; stopped advertising\n", name);
}
}
pthread_mutex_unlock(&dev_lck);
}
else
{
p = avahi_string_list_find(txt, "tp");
if (!p)
{
DPRINTF(E_LOG, L_PLAYER, "AirTunes %s: no tp field in TXT record!\n", name);
return;
}
avahi_string_list_get_pair(p, &key, &val, &valsz);
avahi_free(key);
if (!val)
{
DPRINTF(E_LOG, L_PLAYER, "AirTunes %s: tp has no value\n", name);
return;
}
if (!strstr(val, "UDP"))
{
DPRINTF(E_LOG, L_PLAYER, "AirTunes %s: device does not support AirTunes v2 (tp=%s), discarding\n", name, val);
avahi_free(val);
return;
}
avahi_free(val);
password = NULL;
p = avahi_string_list_find(txt, "pw");
if (!p)
{
DPRINTF(E_LOG, L_PLAYER, "AirTunes %s: no pw field in TXT record!\n", name);
return;
}
avahi_string_list_get_pair(p, &key, &val, &valsz);
avahi_free(key);
if (!val)
{
DPRINTF(E_LOG, L_PLAYER, "AirTunes %s: pw has no value\n", name);
return;
}
has_password = (strcmp(val, "false") != 0);
avahi_free(val);
if (has_password)
{
DPRINTF(E_LOG, L_PLAYER, "AirTunes device %s is password-protected\n", name);
apex = cfg_gettsec(cfg, "apex", at_name);
if (apex)
password = cfg_getstr(apex, "password");
if (!password)
DPRINTF(E_LOG, L_PLAYER, "No password given in config for AirTunes device %s\n", name);
}
encrypt = 1;
p = avahi_string_list_find(txt, "am");
if (!p)
{
DPRINTF(E_LOG, L_PLAYER, "AirTunes %s: no am field in TXT record!\n", name);
goto no_ma;
}
avahi_string_list_get_pair(p, &key, &val, &valsz);
avahi_free(key);
if (!val)
{
DPRINTF(E_LOG, L_PLAYER, "AirTunes %s: am has no value\n", name);
goto no_ma;
}
if (strncmp(val, "AppleTV", strlen("AppleTV")) == 0)
encrypt = 0;
avahi_free(val);
no_ma:
pthread_mutex_lock(&dev_lck);
for (rd = dev_list; rd; rd = rd->next)
{
if (rd->id == id)
break;
}
if (rd)
{
DPRINTF(E_DBG, L_PLAYER, "Updating AirTunes device %s, already in list\n", name);
free(rd->name);
switch (family)
{
case AF_INET:
if (rd->v4_address)
{
free(rd->v4_address);
rd->v4_address = NULL;
}
break;
case AF_INET6:
if (rd->v6_address)
{
free(rd->v6_address);
rd->v6_address = NULL;
}
break;
}
}
else
{
DPRINTF(E_DBG, L_PLAYER, "Adding AirTunes device %s (password: %s)\n", name, (password) ? "yes" : "no");
rd = (struct raop_device *)malloc(sizeof(struct raop_device));
if (!rd)
{
pthread_mutex_unlock(&dev_lck);
DPRINTF(E_LOG, L_PLAYER, "Out of memory for new AirTunes device\n");
return;
}
memset(rd, 0, sizeof(struct raop_device));
rd->id = id;
rd->next = dev_list;
dev_list = rd;
}
rd->advertised = 1;
rd->selected = last_active;
switch (family)
{
case AF_INET:
rd->v4_address = strdup(address);
rd->v4_port = port;
break;
case AF_INET6:
rd->v6_address = strdup(address);
rd->v6_port = port;
break;
}
rd->name = strdup(at_name);
rd->encrypt = encrypt;
rd->has_password = has_password;
rd->password = password;
pthread_mutex_unlock(&dev_lck);
}
}
/* Thread: player */
static void *
player(void *arg)
{
struct raop_device *rd;
int ret;
ret = db_perthread_init();
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Error: DB init failed\n");
pthread_exit(NULL);
}
event_base_dispatch(evbase_player);
if (!player_exit)
DPRINTF(E_LOG, L_PLAYER, "Player event loop terminated ahead of time!\n");
/* Save selected devices */
db_config_clear_key(VAR_ACTIVE_SPK);
if (laudio_selected)
db_config_save_hex64(VAR_ACTIVE_SPK, 0);
pthread_mutex_lock(&dev_lck);
for (rd = dev_list; rd; rd = rd->next)
{
if (rd->selected)
db_config_save_hex64(VAR_ACTIVE_SPK, rd->id);
}
pthread_mutex_unlock(&dev_lck);
db_perthread_deinit();
pthread_exit(NULL);
}
/* Thread: player */
static void
exit_cb(int fd, short what, void *arg)
{
event_base_loopbreak(evbase_player);
player_exit = 1;
}
/* Thread: main */
int
player_init(void)
{
uint32_t rnd;
int ret;
player_exit = 0;
dev_deadline = time(NULL) + LAST_ACTIVE_GRACEPERIOD;
dev_list = NULL;
laudio_status = LAUDIO_CLOSED;
raop_sessions = 0;
cmd.func = NULL;
pb_timer_fd = -1;
source_head = NULL;
shuffle_head = NULL;
cur_playing = NULL;
cur_streaming = NULL;
cur_plid = 0;
player_state = PLAY_STOPPED;
repeat = REPEAT_OFF;
shuffle = 0;
update_handler = NULL;
/* Random RTP time start */
gcry_randomize(&rnd, sizeof(rnd), GCRY_STRONG_RANDOM);
last_rtptime = ((uint64_t)1 << 32) | rnd;
rng_init(&shuffle_rng);
ret = db_config_has_tuple_hex64(VAR_ACTIVE_SPK, 0);
laudio_selected = (ret == 1);
ret = db_config_fetch_int(VAR_PLAYER_VOLUME, &volume);
if (ret < 0)
{
DPRINTF(E_WARN, L_PLAYER, "Could not fetch last volume setting from DB\n");
volume = 75;
}
audio_buf = evbuffer_new();
if (!audio_buf)
{
DPRINTF(E_LOG, L_PLAYER, "Could not allocate evbuffer for audio buffer\n");
return -1;
}
#ifdef USE_EVENTFD
exit_efd = eventfd(0, EFD_CLOEXEC);
if (exit_efd < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not create eventfd: %s\n", strerror(errno));
goto exit_fail;
}
#else
# if defined(__linux__)
ret = pipe2(exit_pipe, O_CLOEXEC);
# else
ret = pipe(exit_pipe);
# endif
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not create pipe: %s\n", strerror(errno));
goto exit_fail;
}
#endif /* USE_EVENTFD */
#ifdef USE_EVENTFD
cmd_efd = eventfd(0, EFD_CLOEXEC);
if (cmd_efd < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not create command eventfd: %s\n", strerror(errno));
goto cmd_fail;
}
#else
# if defined(__linux__)
ret = pipe2(cmd_pipe, O_CLOEXEC);
# else
ret = pipe(cmd_pipe);
# endif
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not create command pipe: %s\n", strerror(errno));
goto cmd_fail;
}
#endif /* USE_EVENTFD */
evbase_player = event_base_new();
if (!evbase_player)
{
DPRINTF(E_LOG, L_PLAYER, "Could not create an event base\n");
goto evbase_fail;
}
#ifdef USE_EVENTFD
event_set(&exitev, exit_efd, EV_READ, exit_cb, NULL);
#else
event_set(&exitev, exit_pipe[0], EV_READ, exit_cb, NULL);
#endif
event_base_set(evbase_player, &exitev);
event_add(&exitev, NULL);
#ifdef USE_EVENTFD
event_set(&cmdev, cmd_efd, EV_READ, command_cb, NULL);
#else
event_set(&cmdev, cmd_pipe[0], EV_READ, command_cb, NULL);
#endif
event_base_set(evbase_player, &cmdev);
event_add(&cmdev, NULL);
ret = laudio_init(player_laudio_status_cb);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Local audio init failed\n");
goto laudio_fail;
}
ret = raop_init();
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "RAOP init failed\n");
goto raop_fail;
}
raop_set_volume(volume, NULL);
ret = mdns_browse("_raop._tcp", raop_device_cb);
if (ret < 0)
{
DPRINTF(E_FATAL, L_PLAYER, "Could not add mDNS browser for AirTunes devices\n");
goto mdns_browse_fail;
}
ret = pthread_create(&tid_player, NULL, player, NULL);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not spawn player thread: %s\n", strerror(errno));
goto thread_fail;
}
return 0;
thread_fail:
mdns_browse_fail:
raop_deinit();
raop_fail:
laudio_deinit();
laudio_fail:
event_base_free(evbase_player);
evbase_fail:
#ifdef USE_EVENTFD
close(cmd_efd);
#else
close(cmd_pipe[0]);
close(cmd_pipe[1]);
#endif
cmd_fail:
#ifdef USE_EVENTFD
close(exit_efd);
#else
close(exit_pipe[0]);
close(exit_pipe[1]);
#endif
exit_fail:
evbuffer_free(audio_buf);
return -1;
}
/* Thread: main */
void
player_deinit(void)
{
int ret;
#ifdef USE_EVENTFD
ret = eventfd_write(exit_efd, 1);
if (ret < 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not send exit event: %s\n", strerror(errno));
return;
}
#else
int dummy = 42;
ret = write(exit_pipe[1], &dummy, sizeof(dummy));
if (ret != sizeof(dummy))
{
DPRINTF(E_LOG, L_PLAYER, "Could not write to exit fd: %s\n", strerror(errno));
return;
}
#endif
ret = pthread_join(tid_player, NULL);
if (ret != 0)
{
DPRINTF(E_LOG, L_PLAYER, "Could not join HTTPd thread: %s\n", strerror(errno));
return;
}
if (source_head)
queue_clear(NULL);
evbuffer_free(audio_buf);
laudio_deinit();
raop_deinit();
if (event_initialized(&pb_timer_ev))
event_del(&pb_timer_ev);
event_del(&cmdev);
#ifdef USE_EVENTFD
close(exit_efd);
close(cmd_efd);
cmd_efd = -1;
#else
close(exit_pipe[0]);
close(exit_pipe[1]);
close(cmd_pipe[0]);
close(cmd_pipe[1]);
cmd_pipe[0] = -1;
cmd_pipe[1] = -1;
#endif
event_base_free(evbase_player);
}
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