1 /*
2  * Copyright (c) 2022 Omar Polo <op@openbsd.org>
3  *
4  * Permission to use, copy, modify, and distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 #ifndef AMUSED_H
18 #define AMUSED_H
19 
20 extern struct sio_hdl	*hdl;
21 extern char		*csock;
22 extern int		 debug;
23 extern int		 verbose;
24 extern int		 playing;
25 extern struct imsgev	*iev_player;
26 
27 #define IMSG_DATA_SIZE(imsg)	((imsg).hdr.len - IMSG_HEADER_SIZE)
28 
29 enum imsg_type {
30 	IMSG_PLAY,		/* fd + filename */
31 	IMSG_RESUME,
32 	IMSG_PAUSE,
33 	IMSG_STOP,
34 	IMSG_EOF,
35 	IMSG_ERR,
36 
37 	IMSG_CTL_PLAY,
38 	IMSG_CTL_TOGGLE_PLAY,
39 	IMSG_CTL_PAUSE,
40 	IMSG_CTL_STOP,
41 	IMSG_CTL_RESTART,
42 	IMSG_CTL_ADD,
43 	IMSG_CTL_FLUSH,
44 	IMSG_CTL_SHOW,
45 	IMSG_CTL_STATUS,
46 	IMSG_CTL_NEXT,
47 	IMSG_CTL_PREV,
48 
49 	IMSG_CTL_ERR,
50 };
51 
52 struct imsgev {
53 	struct imsgbuf	 ibuf;
54 	void		(*handler)(int, short, void *);
55 	struct event	 ev;
56 	short		 events;
57 };
58 
59 enum actions {
60 	NONE,
61 	PLAY,
62 	PAUSE,
63 	TOGGLE,
64 	STOP,
65 	RESTART,
66 	ADD,
67 	FLUSH,
68 	SHOW,
69 	STATUS,
70 	PREV,
71 	NEXT,
72 	LOAD,
73 };
74 
75 struct ctl_command;
76 
77 struct parse_result {
78 	enum actions		 action;
79 	char			**files;
80 	FILE			*file;
81 	struct ctl_command	*ctl;
82 };
83 
84 struct ctl_command {
85 	const char		*name;
86 	enum actions		 action;
87 	int			(*main)(struct parse_result *, int, char **);
88 	const char		*usage;
89 	int			 has_pledge;
90 };
91 
92 struct player_status {
93 	char	path[PATH_MAX];
94 	int	status;
95 };
96 
97 /* amused.c */
98 void		spawn_daemon(void);
99 void		imsg_event_add(struct imsgev *iev);
100 int		imsg_compose_event(struct imsgev *, uint16_t, uint32_t,
101 		    pid_t, int, const void *, uint16_t);
102 int		main_send_player(uint16_t, int, const void *, uint16_t);
103 void		main_playlist_resume(void);
104 void		main_playlist_advance(void);
105 void		main_playlist_previous(void);
106 void		main_restart_track(void);
107 void		main_enqueue(struct imsgev *, struct imsg *);
108 void		main_send_playlist(struct imsgev *);
109 void		main_send_status(struct imsgev *);
110 
111 /* ctl.c */
112 __dead void	usage(void);
113 __dead void	ctl(int, char **);
114 
115 /* player.c */
116 int	player_setrate(int);
117 void	player_senderr(void);
118 void	player_sendeof(void);
119 int	player_shouldstop(void);
120 int	player(int, int);
121 
122 void	play_oggvorbis(int fd);
123 void	play_mp3(int fd);
124 void	play_flac(int fd);
125 void	play_opus(int fd);
126 
127 #endif