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,		/* with optional filename */
38 	IMSG_CTL_TOGGLE_PLAY,
39 	IMSG_CTL_PAUSE,
40 	IMSG_CTL_STOP,
41 	IMSG_CTL_RESTART,
42 	IMSG_CTL_FLUSH,
43 	IMSG_CTL_SHOW,
44 	IMSG_CTL_STATUS,
45 	IMSG_CTL_NEXT,
46 	IMSG_CTL_PREV,
47 	IMSG_CTL_JUMP,
48 
49 	IMSG_CTL_BEGIN,
50 	IMSG_CTL_ADD,		/* path to a file */
51 	IMSG_CTL_COMMIT,
52 
53 	IMSG_CTL_ERR,
54 };
55 
56 struct imsgev {
57 	struct imsgbuf	 ibuf;
58 	void		(*handler)(int, short, void *);
59 	struct event	 ev;
60 	short		 events;
61 };
62 
63 enum actions {
64 	NONE,
65 	PLAY,
66 	PAUSE,
67 	TOGGLE,
68 	STOP,
69 	RESTART,
70 	ADD,
71 	FLUSH,
72 	SHOW,
73 	STATUS,
74 	PREV,
75 	NEXT,
76 	LOAD,
77 	JUMP,
78 };
79 
80 struct ctl_command;
81 
82 struct parse_result {
83 	enum actions		 action;
84 	char			**files;
85 	const char		*file;
86 	int			 pretty;
87 	struct ctl_command	*ctl;
88 };
89 
90 struct ctl_command {
91 	const char		*name;
92 	enum actions		 action;
93 	int			(*main)(struct parse_result *, int, char **);
94 	const char		*usage;
95 	int			 has_pledge;
96 };
97 
98 struct player_status {
99 	char	path[PATH_MAX];
100 	int	status;
101 };
102 
103 struct playlist;
104 
105 /* amused.c */
106 void		spawn_daemon(void);
107 void		imsg_event_add(struct imsgev *iev);
108 int		imsg_compose_event(struct imsgev *, uint16_t, uint32_t,
109 		    pid_t, int, const void *, uint16_t);
110 int		main_send_player(uint16_t, int, const void *, uint16_t);
111 void		main_playlist_jump(struct imsgev *, struct imsg *);
112 void		main_playlist_resume(void);
113 void		main_playlist_advance(void);
114 void		main_playlist_previous(void);
115 void		main_restart_track(void);
116 void		main_senderr(struct imsgev *, const char *);
117 void		main_enqueue(int, struct playlist *, struct imsgev *, struct imsg *);
118 void		main_send_playlist(struct imsgev *);
119 void		main_send_status(struct imsgev *);
120 
121 /* ctl.c */
122 __dead void	usage(void);
123 __dead void	ctl(int, char **);
124 
125 /* player.c */
126 int	player_setup(int, int);
127 void	player_senderr(void);
128 void	player_sendeof(void);
129 int	player_shouldstop(void);
130 int	player(int, int);
131 
132 void	play_oggvorbis(int fd);
133 void	play_mp3(int fd);
134 void	play_flac(int fd);
135 void	play_opus(int fd);
136 
137 #endif