2 * Copyright (C) 2005-2008 Andre Noll <maan@systemlinux.org>
4 * Licensed under the GPL v2. For licencing details see COPYING.
7 /** \file audiod.c the paraslash's audio daemon */
14 #include "audiod.cmdline.h"
19 #include "grab_client.cmdline.h"
20 #include "grab_client.h"
21 #include "client.cmdline.h"
29 #include "write_common.h"
32 /** define the array of error lists needed by para_audiod */
34 /** define the array containing all supported audio formats */
35 const char *audio_formats
[] = {AUDIOD_AUDIO_FORMAT_ARRAY NULL
};
37 /** Defines how audiod handles one supported audio format. */
38 struct audio_format_info
{
39 /** pointer to the receiver for this audio format */
40 struct receiver
*receiver
;
41 /** the receiver configuration */
43 /** the number of filters that should be activated for this audio format */
44 unsigned int num_filters
;
45 /** Array of filter numbers to be activated. */
46 unsigned *filter_nums
;
47 /** Pointer to the array of filter configurations. */
49 /** the number of filters that should be activated for this audio format */
50 unsigned int num_writers
;
51 /** pointer to the array of writers to be activated */
52 struct writer
**writers
;
53 /** pointer to the array of writer configurations */
55 /** do not start receiver/filters/writer before this time */
56 struct timeval restart_barrier
;
60 * para_audiod uses \p MAX_STREAM_SLOTS different slots, each of which may
61 * be associated with a receiver/filter/writer triple. This array holds all
62 * information on the status of these slots.
64 * \sa struct slot_info
66 struct slot_info slot
[MAX_STREAM_SLOTS
];
70 * the current mode of operation of which can be changed by the on/off/cycle
71 * commands. It is either, AUDIOD_OFF, AUDIOD_ON or AUDIOD_STANDBY.
73 int audiod_status
= AUDIOD_ON
;
76 * the gengetopt args_info struct that holds information on all command line
79 struct audiod_args_info conf
;
81 static char *socket_name
;
83 static struct audio_format_info afi
[NUM_AUDIO_FORMATS
];
85 static struct signal_task signal_task_struct
, *sig_task
= &signal_task_struct
;
87 static struct status_task status_task_struct
;
90 * the task that calls the status command of para_server
92 * \sa struct status_task
94 struct status_task
*stat_task
= &status_task_struct
;
95 static struct timeval initial_delay_barrier
;
98 * the task for handling audiod commands
100 * \sa struct task, struct sched
102 struct command_task
{
103 /** the local listening socket */
105 /** the associated task structure */
109 /** iterate over all supported audio formats */
110 #define FOR_EACH_AUDIO_FORMAT(af) for (af = 0; af < NUM_AUDIO_FORMATS; af++)
113 * get the audio format number
114 * \param name the name of the audio format
116 * \return The audio format number on success, -E_UNSUPPORTED_AUDIO_FORMAT if
117 * \a name is not a supported audio format.
119 int get_audio_format_num(char *name
)
123 while (para_isspace(*name
))
125 FOR_EACH_AUDIO_FORMAT(i
)
126 if (!strcmp(name
, audio_formats
[i
]))
128 return -E_UNSUPPORTED_AUDIO_FORMAT
;
132 * the log function of para_audiod
135 * \param fmt the format string
137 void para_log(int ll
, const char* fmt
,...)
143 char str
[MAXLINE
] = "";
144 static char *hostname
;
146 if (ll
< conf
.loglevel_arg
)
148 if (!logfile
&& conf
.daemon_given
)
151 hostname
= para_hostname();
152 outfd
= logfile
? logfile
: stderr
;
155 strftime(str
, MAXLINE
, "%b %d %H:%M:%S", tm
);
156 fprintf(outfd
, "%s %s ", str
, hostname
);
157 if (conf
.loglevel_arg
<= INFO
)
158 fprintf(outfd
, "%i ", ll
);
160 vfprintf(outfd
, fmt
, argp
);
164 static char *configfile_exists(void)
166 char *home
= para_homedir();
167 char *config_file
= make_message("%s/.paraslash/audiod.conf",
170 if (file_exists(config_file
))
176 static void setup_signal_handling(void)
178 sig_task
->fd
= para_signal_init();
179 PARA_INFO_LOG("signal pipe: fd %d\n", sig_task
->fd
);
180 para_install_sighandler(SIGINT
);
181 para_install_sighandler(SIGTERM
);
182 para_install_sighandler(SIGHUP
);
183 signal(SIGPIPE
, SIG_IGN
);
186 static void clear_slot(int slot_num
)
188 struct slot_info
*s
= &slot
[slot_num
];
190 PARA_INFO_LOG("clearing slot %d\n", slot_num
);
191 memset(s
, 0, sizeof(struct slot_info
));
195 static void close_receiver(int slot_num
)
197 struct slot_info
*s
= &slot
[slot_num
];
198 struct audio_format_info
*a
;
200 if (s
->format
< 0 || !s
->receiver_node
)
203 PARA_NOTICE_LOG("closing %s receiver in slot %d\n",
204 audio_formats
[s
->format
], slot_num
);
205 a
->receiver
->close(s
->receiver_node
);
206 free(s
->receiver_node
);
207 s
->receiver_node
= NULL
;
210 static void kill_all_decoders(int error
)
215 struct slot_info
*s
= &slot
[i
];
216 if (s
->wng
&& s
->wng
->task
.error
>= 0) {
217 PARA_INFO_LOG("deactivating wng in slot %d\n",
219 s
->wng
->task
.error
= error
;
221 if (s
->fc
&& s
->fc
->task
.error
>= 0) {
222 PARA_INFO_LOG("deactivatimg filter chain in slot %d\n", i
);
223 s
->fc
->task
.error
= error
;
225 if (s
->receiver_node
&& s
->receiver_node
->task
.error
>= 0) {
226 PARA_INFO_LOG("deactivating receiver_node in slot %d\n", i
);
227 s
->receiver_node
->task
.error
= error
;
232 static int get_empty_slot(void)
243 if (s
->wng
|| s
->receiver_node
|| s
->fc
)
248 return -E_NO_MORE_SLOTS
;
252 * get the number of filters
254 * \param audio_format_num the number identifying the audio format
256 * \return the number of filters for the given audio format
260 int num_filters(int audio_format_num
)
262 return afi
[audio_format_num
].num_filters
;
265 static void open_filters(int slot_num
)
267 struct slot_info
*s
= &slot
[slot_num
];
268 struct audio_format_info
*a
= &afi
[s
->format
];
269 struct filter_node
*fn
;
270 int nf
= a
->num_filters
;
276 PARA_INFO_LOG("opening %s filters\n", audio_formats
[s
->format
]);
277 s
->fc
= para_calloc(sizeof(struct filter_chain
));
278 s
->fc
->filter_nodes
= para_malloc(nf
* sizeof(struct filter_chain
));
279 s
->fc
->inbuf
= s
->receiver_node
->buf
;
280 s
->fc
->in_loaded
= &s
->receiver_node
->loaded
;
281 s
->fc
->input_error
= &s
->receiver_node
->task
.error
;
282 s
->fc
->task
.pre_select
= filter_pre_select
;
283 s
->fc
->task
.post_select
= NULL
;
284 s
->fc
->task
.error
= 0;
285 s
->fc
->num_filters
= nf
;
287 s
->receiver_node
->output_error
= &s
->fc
->task
.error
;
288 sprintf(s
->fc
->task
.status
, "filter chain");
289 FOR_EACH_FILTER_NODE(fn
, s
->fc
, i
) {
290 struct filter
*f
= filters
+ a
->filter_nums
[i
];
291 fn
->filter_num
= a
->filter_nums
[i
];
292 fn
->conf
= a
->filter_conf
[i
];
295 INIT_LIST_HEAD(&fn
->callbacks
);
297 PARA_NOTICE_LOG("%s filter %d/%d (%s) started in slot %d\n",
298 audio_formats
[s
->format
], i
, nf
, f
->name
, slot_num
);
299 s
->fc
->outbuf
= fn
->buf
;
300 s
->fc
->out_loaded
= &fn
->loaded
;
302 register_task(&s
->fc
->task
);
305 static void open_writers(int slot_num
)
308 struct slot_info
*s
= &slot
[slot_num
];
309 struct audio_format_info
*a
= &afi
[s
->format
];
311 PARA_INFO_LOG("opening %s writers\n", audio_formats
[s
->format
]);
313 s
->wng
= setup_default_wng();
315 s
->wng
= wng_new(a
->num_writers
);
317 s
->wng
->buf
= s
->fc
->outbuf
;
318 s
->wng
->loaded
= s
->fc
->out_loaded
;
319 s
->wng
->input_error
= &s
->fc
->task
.error
;
320 s
->wng
->channels
= &s
->fc
->channels
;
321 s
->wng
->samplerate
= &s
->fc
->samplerate
;
322 s
->fc
->output_error
= &s
->wng
->task
.error
;
323 PARA_INFO_LOG("samplerate: %d\n", *s
->wng
->samplerate
);
325 s
->wng
->buf
= s
->receiver_node
->buf
;
326 s
->wng
->loaded
= &s
->receiver_node
->loaded
;
327 s
->wng
->input_error
= &s
->receiver_node
->task
.error
;
329 for (i
= 0; i
< a
->num_writers
; i
++) {
330 s
->wng
->writer_nodes
[i
].conf
= a
->writer_conf
[i
];
331 s
->wng
->writer_nodes
[i
].writer
= a
->writers
[i
];
333 ret
= wng_open(s
->wng
);
335 PARA_ERROR_LOG("%s\n", para_strerror(-ret
));
339 activate_inactive_grab_clients(slot_num
, s
->format
, s
->fc
);
342 static int open_receiver(int format
)
344 struct audio_format_info
*a
= &afi
[format
];
347 struct receiver_node
*rn
;
348 const struct timeval restart_delay
= {2, 0};
350 ret
= get_empty_slot();
356 s
->receiver_node
= para_calloc(sizeof(struct receiver_node
));
357 rn
= s
->receiver_node
;
358 rn
->receiver
= a
->receiver
;
359 rn
->conf
= a
->receiver_conf
;
360 ret
= a
->receiver
->open(s
->receiver_node
);
362 free(s
->receiver_node
);
363 s
->receiver_node
= NULL
;
366 PARA_NOTICE_LOG("started %s: %s receiver in slot %d\n",
367 audio_formats
[s
->format
], a
->receiver
->name
, slot_num
);
368 rn
->task
.pre_select
= a
->receiver
->pre_select
;
369 rn
->task
.post_select
= a
->receiver
->post_select
;
370 sprintf(rn
->task
.status
, "%s receiver node", rn
->receiver
->name
);
371 register_task(&rn
->task
);
375 PARA_ERROR_LOG("%s\n", para_strerror(-ret
));
376 tv_add(now
, &restart_delay
, &afi
[format
].restart_barrier
);
380 static int receiver_running(int format
)
385 struct slot_info
*s
= &slot
[i
];
386 if (s
->format
== format
&& s
->receiver_node
387 && s
->receiver_node
->task
.error
>= 0)
393 static int open_current_receiver(struct sched
*s
)
396 int cafn
= stat_task
->current_audio_format_num
;
398 if (cafn
< 0 || !stat_task
->ct
)
400 if (receiver_running(cafn
))
402 if (tv_diff(now
, &afi
[cafn
].restart_barrier
, &diff
) < 0) {
406 return open_receiver(cafn
) < 0? 0 : 1;
409 static unsigned compute_time_diff(const struct timeval
*status_time
)
411 struct timeval tmp
, diff
;
412 static unsigned count
;
413 int sign
, sa_time_diff_sign
= stat_task
->sa_time_diff_sign
;
414 const struct timeval max_deviation
= {0, 500 * 1000};
415 const int time_smooth
= 5;
419 sign
= tv_diff(status_time
, now
, &diff
);
420 // PARA_NOTICE_LOG("%s: sign = %i, sa_time_diff_sign = %i\n", __func__,
421 // sign, sa_time_diff_sign);
423 sa_time_diff_sign
= sign
;
424 stat_task
->sa_time_diff
= diff
;
429 int s
= tv_diff(&diff
, &stat_task
->sa_time_diff
, &tmp
);
430 if (tv_diff(&max_deviation
, &tmp
, NULL
) < 0)
431 PARA_WARNING_LOG("time diff jump: %lims\n",
435 sa_time_diff_sign
= tv_convex_combination(
436 sa_time_diff_sign
* time_smooth
, &stat_task
->sa_time_diff
,
437 count
> 10? sign
: sign
* time_smooth
, &diff
,
439 stat_task
->sa_time_diff
= tmp
;
440 PARA_INFO_LOG("time diff (cur/avg): %s%lums/%s%lums\n",
443 sa_time_diff_sign
? "+" : "-",
444 tv2ms(&stat_task
->sa_time_diff
)
447 stat_task
->sa_time_diff_sign
= sa_time_diff_sign
;
451 static int check_stat_line(char *line
, __a_unused
void *data
)
455 long unsigned sec
, usec
;
458 //PARA_INFO_LOG("line: %s\n", line);
461 itemnum
= stat_line_valid(line
);
463 PARA_WARNING_LOG("invalid status line: %s\n", line
);
466 if (stat_task
->clock_diff_count
&& itemnum
!= SI_CURRENT_TIME
)
468 tmp
= make_message("%s\n", line
);
469 stat_client_write(tmp
, itemnum
);
471 free(stat_task
->stat_item_values
[itemnum
]);
472 stat_task
->stat_item_values
[itemnum
] = para_strdup(line
);
473 ilen
= strlen(status_item_list
[itemnum
]);
476 stat_task
->playing
= strstr(line
, "playing")? 1 : 0;
477 PARA_INFO_LOG("stat task playing: %d\n", stat_task
->playing
);
480 stat_task
->offset_seconds
= atoi(line
+ ilen
+ 1);
482 case SI_SECONDS_TOTAL
:
483 stat_task
->length_seconds
= atoi(line
+ ilen
+ 1);
485 case SI_STREAM_START
:
486 if (sscanf(line
+ ilen
+ 1, "%lu.%lu", &sec
, &usec
) == 2) {
487 struct timeval a_start
, delay
;
488 delay
.tv_sec
= conf
.stream_delay_arg
/ 1000;
489 delay
.tv_usec
= (conf
.stream_delay_arg
% 1000) * 1000;
490 stat_task
->server_stream_start
.tv_sec
= sec
;
491 stat_task
->server_stream_start
.tv_usec
= usec
;
492 if (compute_time_diff(NULL
) > 2) {
493 if (stat_task
->sa_time_diff_sign
< 0)
494 tv_add(&stat_task
->server_stream_start
,
495 &stat_task
->sa_time_diff
, &a_start
);
497 tv_diff(&stat_task
->server_stream_start
,
498 &stat_task
->sa_time_diff
, &a_start
);
499 tv_add(&a_start
, &delay
, &initial_delay_barrier
);
503 case SI_CURRENT_TIME
:
504 if (sscanf(line
+ ilen
+ 1, "%lu.%lu", &sec
, &usec
) == 2) {
505 struct timeval tv
= {sec
, usec
};
506 compute_time_diff(&tv
);
510 stat_task
->current_audio_format_num
= get_audio_format_num(
516 static int parse_stream_command(const char *txt
, char **cmd
)
518 char *p
= strchr(txt
, ':');
522 return -E_MISSING_COLON
;
524 FOR_EACH_AUDIO_FORMAT(i
) {
525 if (strncmp(txt
, audio_formats
[i
], strlen(audio_formats
[i
])))
530 return -E_UNSUPPORTED_AUDIO_FORMAT
;
533 static int add_filter(int format
, char *cmdline
)
535 struct audio_format_info
*a
= &afi
[format
];
536 int filter_num
, nf
= a
->num_filters
;
538 filter_num
= check_filter_arg(cmdline
, &a
->filter_conf
[nf
]);
541 a
->filter_nums
[nf
] = filter_num
;
543 PARA_INFO_LOG("%s filter %d: %s\n", audio_formats
[format
], nf
,
544 filters
[filter_num
].name
);
548 static int init_writers(void)
552 struct audio_format_info
*a
;
554 init_supported_writers();
555 nw
= PARA_MAX(1, conf
.writer_given
);
556 PARA_INFO_LOG("maximal number of writers: %d\n", nw
);
557 FOR_EACH_AUDIO_FORMAT(i
) {
559 a
->writer_conf
= para_malloc(nw
* sizeof(void *));
560 a
->writers
= para_malloc(nw
* sizeof(struct writer
*));
563 for (i
= 0; i
< conf
.writer_given
; i
++) {
566 ret
= parse_stream_command(conf
.writer_arg
[i
], &cmd
);
571 wconf
= check_writer_arg(cmd
, &writer_num
);
576 a
->writers
[nw
] = &writers
[writer_num
];
577 a
->writer_conf
[nw
] = wconf
;
578 PARA_INFO_LOG("%s writer #%d: %s\n", audio_formats
[ret
],
579 nw
, writer_names
[writer_num
]);
587 static int init_receivers(void)
589 int i
, ret
, receiver_num
;
591 struct audio_format_info
*a
;
593 for (i
= 0; receivers
[i
].name
; i
++) {
594 PARA_INFO_LOG("initializing %s receiver\n", receivers
[i
].name
);
595 receivers
[i
].init(&receivers
[i
]);
597 for (i
= conf
.receiver_given
- 1; i
>= 0; i
--) {
598 char *arg
= conf
.receiver_arg
[i
];
599 char *recv_arg
= strchr(arg
, ':');
600 ret
= -E_MISSING_COLON
;
605 ret
= get_audio_format_num(arg
);
608 afi
[ret
].receiver_conf
= check_receiver_arg(recv_arg
, &receiver_num
);
609 if (!afi
[ret
].receiver_conf
) {
610 ret
= -E_RECV_SYNTAX
;
613 afi
[ret
].receiver
= &receivers
[receiver_num
];
615 /* use the first available receiver with no arguments
616 * for those audio formats for which no receiver
619 cmd
= para_strdup(receivers
[0].name
);
620 FOR_EACH_AUDIO_FORMAT(i
) {
622 if (a
->receiver_conf
)
624 a
->receiver_conf
= check_receiver_arg(cmd
, &receiver_num
);
625 if (!a
->receiver_conf
)
626 return -E_RECV_SYNTAX
;
627 a
->receiver
= &receivers
[receiver_num
];
635 static int init_default_filters(void)
639 FOR_EACH_AUDIO_FORMAT(i
) {
640 struct audio_format_info
*a
= &afi
[i
];
645 continue; /* no default -- nothing to to */
646 /* add "dec" to audio format name */
647 tmp
= make_message("%sdec", audio_formats
[i
]);
648 for (j
= 0; filters
[j
].name
; j
++)
649 if (!strcmp(tmp
, filters
[j
].name
))
652 ret
= -E_UNSUPPORTED_FILTER
;
653 if (!filters
[j
].name
)
655 tmp
= para_strdup(filters
[j
].name
);
656 ret
= add_filter(i
, tmp
);
660 PARA_INFO_LOG("%s -> default filter: %s\n", audio_formats
[i
],
667 static int init_filters(void)
671 filter_init(filters
);
672 nf
= PARA_MAX(1, conf
.filter_given
);
673 PARA_INFO_LOG("maximal number of filters: %d\n", nf
);
674 FOR_EACH_AUDIO_FORMAT(i
) {
675 afi
[i
].filter_conf
= para_malloc(nf
* sizeof(void *));
676 afi
[i
].filter_nums
= para_malloc(nf
* sizeof(unsigned));
678 if (!conf
.no_default_filters_given
)
679 return init_default_filters();
680 for (i
= 0; i
< conf
.filter_given
; i
++) {
681 char *arg
= conf
.filter_arg
[i
];
682 char *filter_name
= strchr(arg
, ':');
683 ret
= -E_MISSING_COLON
;
688 ret
= get_audio_format_num(arg
);
691 ret
= add_filter(ret
, filter_name
);
695 ret
= init_default_filters(); /* use default values for the rest */
700 static int init_stream_io(void)
704 ret
= init_writers();
707 ret
= init_receivers();
710 ret
= init_filters();
716 /* does not unlink socket on errors */
717 static int audiod_get_socket(void)
719 struct sockaddr_un unix_addr
;
722 if (conf
.socket_given
)
723 socket_name
= para_strdup(conf
.socket_arg
);
725 char *hn
= para_hostname();
726 socket_name
= make_message("/var/paraslash/audiod_socket.%s",
730 PARA_NOTICE_LOG("local socket: %s\n", socket_name
);
731 if (conf
.force_given
)
733 ret
= create_local_socket(socket_name
, &unix_addr
,
734 S_IRUSR
| S_IWUSR
| S_IRGRP
| S_IWGRP
| S_IWOTH
);
738 if (listen(fd
, 5) < 0) {
739 ret
= -ERRNO_TO_PARA_ERROR(errno
);
742 ret
= mark_fd_nonblocking(fd
);
747 PARA_EMERG_LOG("%s\n", para_strerror(-ret
));
751 static void signal_pre_select(struct sched
*s
, struct task
*t
)
753 struct signal_task
*st
= container_of(t
, struct signal_task
, task
);
754 para_fd_set(st
->fd
, &s
->rfds
, &s
->max_fileno
);
757 static void signal_post_select(struct sched
*s
, struct task
*t
)
759 struct signal_task
*st
= container_of(t
, struct signal_task
, task
);
762 if (!FD_ISSET(st
->fd
, &s
->rfds
))
765 signum
= para_next_signal();
770 PARA_EMERG_LOG("terminating on signal %d\n", st
->signum
);
771 clean_exit(EXIT_FAILURE
, "caught deadly signal");
775 static void signal_setup_default(struct signal_task
*st
)
777 st
->task
.pre_select
= signal_pre_select
;
778 st
->task
.post_select
= signal_post_select
;
779 sprintf(st
->task
.status
, "signal task");
782 static void command_pre_select(struct sched
*s
, struct task
*t
)
784 struct command_task
*ct
= container_of(t
, struct command_task
, task
);
785 para_fd_set(ct
->fd
, &s
->rfds
, &s
->max_fileno
);
788 static void command_post_select(struct sched
*s
, struct task
*t
)
791 struct command_task
*ct
= container_of(t
, struct command_task
, task
);
793 audiod_status_dump();
794 if (!FD_ISSET(ct
->fd
, &s
->rfds
))
796 ret
= handle_connect(ct
->fd
);
798 PARA_ERROR_LOG("%s\n", para_strerror(-ret
));
801 static void init_command_task(struct command_task
*ct
)
803 ct
->task
.pre_select
= command_pre_select
;
804 ct
->task
.post_select
= command_post_select
;
806 ct
->fd
= audiod_get_socket(); /* doesn't return on errors */
807 sprintf(ct
->task
.status
, "command task");
810 static void close_stat_pipe(void)
816 client_close(stat_task
->ct
);
817 stat_task
->ct
= NULL
;
818 FOR_EACH_STATUS_ITEM(i
) {
819 free(stat_task
->stat_item_values
[i
]);
820 stat_task
->stat_item_values
[i
] = NULL
;
823 stat_task
->length_seconds
= 0;
824 stat_task
->offset_seconds
= 0;
825 audiod_status_dump();
826 stat_task
->playing
= 0;
827 stat_task
->stat_item_values
[SI_BASENAME
] = make_message(
828 "%s: no connection to para_server\n",
829 status_item_list
[SI_BASENAME
]);
830 stat_client_write(stat_task
->stat_item_values
[SI_BASENAME
],
835 * close the connection to para_server and exit
837 * \param status the exit status which is passed to exit(3)
838 * \param msg the log message
840 * Log \a msg with loglevel \p EMERG, close the connection to para_server if
841 * open, and call \p exit(status). \a status should be either EXIT_SUCCESS or
846 void __noreturn
clean_exit(int status
, const char *msg
)
848 PARA_EMERG_LOG("%s\n", msg
);
855 /* avoid busy loop if server is down */
856 static void set_stat_task_restart_barrier(unsigned seconds
)
858 struct timeval delay
= {seconds
, 0};
859 tv_add(now
, &delay
, &stat_task
->restart_barrier
);
862 static void try_to_close_slot(int slot_num
)
864 struct slot_info
*s
= &slot
[slot_num
];
868 if (s
->receiver_node
&& s
->receiver_node
->task
.error
!= -E_TASK_UNREGISTERED
)
870 if (s
->fc
&& s
->fc
->task
.error
!= -E_TASK_UNREGISTERED
)
872 if (s
->wng
&& s
->wng
->task
.error
!= -E_TASK_UNREGISTERED
)
874 PARA_INFO_LOG("closing slot %d\n", slot_num
);
876 close_filters(s
->fc
);
878 close_receiver(slot_num
);
879 clear_slot(slot_num
);
883 * Check if any receivers/filters/writers need to be started and do so if
886 static void start_stop_decoders(struct sched
*s
)
891 try_to_close_slot(i
);
892 if (audiod_status
!= AUDIOD_ON
|| !stat_task
->playing
)
893 return kill_all_decoders(-E_NOT_PLAYING
);
894 open_current_receiver(s
);
896 struct slot_info
*sl
= &slot
[i
];
897 struct audio_format_info
*a
;
902 a
= &afi
[sl
->format
];
903 if (!sl
->receiver_node
)
905 if ((!a
->num_filters
|| sl
->fc
) && sl
->wng
)
906 continue; /* everything already started */
907 if (!a
->num_filters
) {
908 if (sl
->receiver_node
->loaded
&& !sl
->wng
) {
913 if (sl
->receiver_node
->loaded
&& !sl
->fc
) {
917 if (sl
->wng
|| !sl
->fc
|| !*sl
->fc
->out_loaded
)
919 if (tv_diff(now
, &initial_delay_barrier
, &diff
) > 0) {
923 PARA_INFO_LOG("initial delay: %lu ms left\n", tv2ms(&diff
));
924 if (tv_diff(&s
->timeout
, &diff
, NULL
) > 0) {
931 /* restart the client task if necessary */
932 static void status_pre_select(struct sched
*s
, struct task
*t
)
934 struct status_task
*st
= container_of(t
, struct status_task
, task
);
936 if (audiod_status
== AUDIOD_OFF
) {
939 if (st
->ct
->task
.error
>= 0) {
940 st
->ct
->task
.error
= -E_AUDIOD_OFF
;
943 if (st
->ct
->task
.error
!= -E_TASK_UNREGISTERED
)
946 st
->clock_diff_count
= conf
.clock_diff_count_arg
;
951 if (st
->ct
->task
.error
< 0) {
952 if (st
->ct
->task
.error
!= -E_TASK_UNREGISTERED
)
957 if (st
->ct
->status
!= CL_RECEIVING
)
959 bytes_left
= for_each_line(st
->ct
->buf
, st
->ct
->loaded
,
960 &check_stat_line
, NULL
);
961 if (st
->ct
->loaded
!= bytes_left
) {
962 st
->last_status_read
= *now
;
963 st
->ct
->loaded
= bytes_left
;
966 tv_diff(now
, &st
->last_status_read
, &diff
);
967 if (diff
.tv_sec
> 61)
968 st
->ct
->task
.error
= -E_STATUS_TIMEOUT
;
972 if (tv_diff(now
, &st
->restart_barrier
, NULL
) < 0)
974 if (st
->clock_diff_count
) { /* get status only one time */
975 char *argv
[] = {"audiod", "stat", "1", NULL
};
977 PARA_INFO_LOG("clock diff count: %d\n", st
->clock_diff_count
);
978 st
->clock_diff_count
--;
979 client_open(argc
, argv
, &st
->ct
);
980 set_stat_task_restart_barrier(2);
983 char *argv
[] = {"audiod", "stat", NULL
};
985 client_open(argc
, argv
, &st
->ct
);
986 set_stat_task_restart_barrier(5);
988 st
->last_status_read
= *now
;
990 start_stop_decoders(s
);
993 static void init_status_task(struct status_task
*st
)
995 memset(st
, 0, sizeof(struct status_task
));
996 st
->task
.pre_select
= status_pre_select
;
997 st
->sa_time_diff_sign
= 1;
998 st
->clock_diff_count
= conf
.clock_diff_count_arg
;
999 st
->current_audio_format_num
= -1;
1000 sprintf(st
->task
.status
, "status task");
1003 static void set_initial_status(void)
1005 audiod_status
= AUDIOD_ON
;
1006 if (!conf
.mode_given
)
1008 if (!strcmp(conf
.mode_arg
, "sb")) {
1009 audiod_status
= AUDIOD_STANDBY
;
1012 if (!strcmp(conf
.mode_arg
, "off")) {
1013 audiod_status
= AUDIOD_OFF
;
1016 if (strcmp(conf
.mode_arg
, "on"))
1017 PARA_WARNING_LOG("invalid mode\n");
1021 * the main function of para_audiod
1023 * \param argc usual argument count
1024 * \param argv usual argument vector
1026 * \return EXIT_SUCCESS or EXIT_FAILURE
1028 * \sa para_audiod(1)
1030 int main(int argc
, char *argv
[])
1035 struct command_task command_task_struct
, *cmd_task
= &command_task_struct
;
1036 struct audiod_cmdline_parser_params params
= {
1039 .check_required
= 0,
1040 .check_ambiguity
= 0,
1045 audiod_cmdline_parser_ext(argc
, argv
, &conf
, ¶ms
);
1046 HANDLE_VERSION_FLAG("audiod", conf
);
1047 para_drop_privileges(conf
.user_arg
, conf
.group_arg
);
1048 config_file
= configfile_exists();
1050 params
.override
= 0;
1051 params
.initialize
= 0;
1052 params
.check_required
= 1;
1053 params
.check_ambiguity
= 0;
1054 params
.print_errors
= 1;
1055 if (audiod_cmdline_parser_config_file(config_file
, &conf
, ¶ms
)) {
1056 PARA_EMERG_LOG("parse error in config file\n");
1061 if (conf
.logfile_given
)
1062 logfile
= open_log(conf
.logfile_arg
);
1063 log_welcome("para_audiod", conf
.loglevel_arg
);
1064 i
= init_stream_io();
1066 PARA_EMERG_LOG("init stream io error: %s\n", para_strerror(-i
));
1069 server_uptime(UPTIME_SET
);
1070 set_initial_status();
1074 setup_signal_handling();
1075 signal_setup_default(sig_task
);
1077 init_status_task(stat_task
);
1078 init_command_task(cmd_task
);
1080 if (conf
.daemon_given
)
1083 register_task(&sig_task
->task
);
1084 register_task(&cmd_task
->task
);
1085 register_task(&stat_task
->task
);
1086 s
.default_timeout
.tv_sec
= 0;
1087 s
.default_timeout
.tv_usec
= 99 * 1000;
1090 PARA_EMERG_LOG("%s\n", para_strerror(-ret
));
1091 return EXIT_FAILURE
;