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 char		*csock;
21 extern int		 debug;
22 extern int		 verbose;
23 extern int		 playing;
24 extern struct imsgev	*iev_player;
25 
26 #define IMSG_DATA_SIZE(imsg)	((imsg).hdr.len - IMSG_HEADER_SIZE)
27 
28 enum imsg_type {
29 	IMSG_PLAY,		/* fd + filename */
30 	IMSG_RESUME,
31 	IMSG_PAUSE,
32 	IMSG_STOP,
33 	IMSG_EOF,
34 	IMSG_ERR,
35 
36 	IMSG_CTL_PLAY,		/* with optional filename */
37 	IMSG_CTL_TOGGLE_PLAY,
38 	IMSG_CTL_PAUSE,
39 	IMSG_CTL_STOP,
40 	IMSG_CTL_RESTART,
41 	IMSG_CTL_FLUSH,
42 	IMSG_CTL_SHOW,
43 	IMSG_CTL_STATUS,
44 	IMSG_CTL_NEXT,
45 	IMSG_CTL_PREV,
46 	IMSG_CTL_JUMP,
47 	IMSG_CTL_REPEAT,	/* struct player_repeat */
48 
49 	IMSG_CTL_BEGIN,
50 	IMSG_CTL_ADD,		/* path to a file */
51 	IMSG_CTL_COMMIT,	/* offset of the track to jump to */
52 
53 	IMSG_CTL_MONITOR,
54 
55 	IMSG_CTL_ERR,
56 };
57 
58 struct imsgev {
59 	struct imsgbuf	 ibuf;
60 	void		(*handler)(int, short, void *);
61 	struct event	 ev;
62 	short		 events;
63 };
64 
65 enum actions {
66 	NONE,
67 	PLAY,
68 	PAUSE,
69 	TOGGLE,
70 	STOP,
71 	RESTART,
72 	ADD,
73 	FLUSH,
74 	SHOW,
75 	STATUS,
76 	PREV,
77 	NEXT,
78 	LOAD,
79 	JUMP,
80 	REPEAT,
81 	MONITOR,
82 };
83 
84 struct ctl_command;
85 
86 struct player_repeat {
87 	int	repeat_one;
88 	int	repeat_all;
89 };
90 
91 struct player_status {
92 	char			path[PATH_MAX];
93 	int			status;
94 	struct player_repeat	rp;
95 };
96 
97 struct parse_result {
98 	enum actions		 action;
99 	char			**files;
100 	const char		*file;
101 	int			 pretty;
102 	struct player_repeat	 rep;
103 	struct ctl_command	*ctl;
104 };
105 
106 struct ctl_command {
107 	const char		*name;
108 	enum actions		 action;
109 	int			(*main)(struct parse_result *, int, char **);
110 	const char		*usage;
111 	int			 has_pledge;
112 };
113 
114 struct playlist;
115 
116 /* amused.c */
117 void		spawn_daemon(void);
118 void		imsg_event_add(struct imsgev *iev);
119 int		imsg_compose_event(struct imsgev *, uint16_t, uint32_t,
120 		    pid_t, int, const void *, uint16_t);
121 int		main_send_player(uint16_t, int);
122 int		main_play_song(const char *);
123 void		main_playlist_jump(struct imsgev *, struct imsg *);
124 void		main_playlist_resume(void);
125 void		main_playlist_advance(void);
126 void		main_playlist_previous(void);
127 void		main_restart_track(void);
128 void		main_senderr(struct imsgev *, const char *);
129 void		main_enqueue(int, struct playlist *, struct imsgev *, struct imsg *);
130 void		main_send_playlist(struct imsgev *);
131 void		main_send_status(struct imsgev *);
132 
133 /* ctl.c */
134 __dead void	usage(void);
135 __dead void	ctl(int, char **);
136 
137 /* player.c */
138 int	player_setup(int, int, int);
139 int	play(const void *, size_t);
140 int	player(int, int);
141 
142 int	play_oggvorbis(int fd);
143 int	play_mp3(int fd);
144 int	play_flac(int fd);
145 int	play_opus(int fd);
146 
147 #endif