2 * Copyright (C) 2006-2009 Andre Noll <maan@systemlinux.org>
4 * Licensed under the GPL v2. For licencing details see COPYING.
7 /** \file audiod.h symbols exported from audiod.c */
10 int num_filters(int audio_format_num
);
11 int get_audio_format_num(const char *name
);
13 /** enum of audio formats supported by para_audiod */
14 enum {AUDIOD_AUDIO_FORMATS_ENUM
};
16 /** array of audio format names supported by para_audiod */
17 extern const char *audio_formats
[];
19 /** maximal number of simultaneous instances */
20 #define MAX_STREAM_SLOTS 5
23 * the possible modes of operation
25 * - off: disconnect from para_server
26 * - on: receive status information from para_server and play the audio stream
27 * - sb: only receive status information but not the audio stream
29 enum audiod_status_info
{AUDIOD_OFF
, AUDIOD_ON
, AUDIOD_STANDBY
};
31 /** defines one command of para_audiod */
32 struct audiod_command
{
33 /** the name of the command */
35 /** pointer to the function that handles the command */
36 int (*handler
)(int, int, char**);
37 /** one-line description of the command */
38 const char *description
;
39 /** summary of the command line options */
41 /** the long help text */
46 * Describes one instance of a receiver-filter-writer chain.
48 * \sa receiver_node, receiver, filter, filter_node, filter_chain, writer,
49 * writer_node, writer_node_group.
52 /** Number of the audio format in this slot. */
54 /** Receiver start time. */
55 struct timeval rstime
;
56 /** Writer start time. */
57 struct timeval wstime
;
58 /** The stream_start status item announced by para_server. */
59 struct timeval server_stream_start
;
60 /** The offset status item announced by para_server. */
61 unsigned offset_seconds
;
62 /** The seconds_total status item announced by para_server. */
63 unsigned seconds_total
;
64 /** The receiver info associated with this slot. */
65 struct receiver_node
*receiver_node
;
66 /** The active filter chain. */
67 struct filter_chain
*fc
;
68 /** The active writer node group. */
69 struct writer_node_group
*wng
;
72 extern struct slot_info slot
[MAX_STREAM_SLOTS
];
73 extern struct audiod_args_info conf
;
74 extern int audiod_status
;
76 void __noreturn
clean_exit(int status
, const char *msg
);
77 int handle_connect(int accept_fd
);
78 void audiod_status_dump(void);
79 char *get_time_string(int slot_num
);
81 /** iterate over all slots */
82 #define FOR_EACH_SLOT(_slot) for (_slot = 0; _slot < MAX_STREAM_SLOTS; _slot++)