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_POS,
34 	IMSG_LEN,
35 	IMSG_EOF,
36 	IMSG_ERR,		/* error string */
37 
38 	IMSG_CTL_PLAY,		/* with optional filename */
39 	IMSG_CTL_TOGGLE_PLAY,
40 	IMSG_CTL_PAUSE,
41 	IMSG_CTL_STOP,
42 	IMSG_CTL_RESTART,
43 	IMSG_CTL_FLUSH,
44 	IMSG_CTL_SHOW,
45 	IMSG_CTL_STATUS,
46 	IMSG_CTL_NEXT,
47 	IMSG_CTL_PREV,
48 	IMSG_CTL_JUMP,
49 	IMSG_CTL_REPEAT,	/* struct player_repeat */
50 	IMSG_CTL_SEEK,		/* struct player_seek */
51 
52 	IMSG_CTL_BEGIN,
53 	IMSG_CTL_ADD,		/* path to a file */
54 	IMSG_CTL_COMMIT,	/* offset of the track to jump to */
55 
56 	IMSG_CTL_MONITOR,
57 
58 	IMSG_CTL_ERR,
59 	IMSG__LAST,
60 };
61 
62 struct imsgev {
63 	struct imsgbuf	 ibuf;
64 	void		(*handler)(int, short, void *);
65 	struct event	 ev;
66 	short		 events;
67 };
68 
69 enum actions {
70 	NONE,
71 	PLAY,
72 	PAUSE,
73 	TOGGLE,
74 	STOP,
75 	RESTART,
76 	ADD,
77 	FLUSH,
78 	SHOW,
79 	STATUS,
80 	PREV,
81 	NEXT,
82 	LOAD,
83 	JUMP,
84 	REPEAT,
85 	MONITOR,
86 	SEEK,
87 };
88 
89 struct player_seek {
90 	int64_t	offset;
91 	int	relative;
92 };
93 
94 struct ctl_command;
95 
96 struct player_repeat {
97 	int	repeat_one;
98 	int	repeat_all;
99 };
100 
101 struct player_status {
102 	char			path[PATH_MAX];
103 	int			status;
104 	int64_t			position;
105 	int64_t			duration;
106 	struct player_repeat	rp;
107 };
108 
109 struct parse_result {
110 	enum actions		 action;
111 	char			**files;
112 	const char		*file;
113 	int			 pretty;
114 	int			 monitor[IMSG__LAST];
115 	struct player_repeat	 rep;
116 	struct player_seek	 seek;
117 	struct ctl_command	*ctl;
118 };
119 
120 struct ctl_command {
121 	const char		*name;
122 	enum actions		 action;
123 	int			(*main)(struct parse_result *, int, char **);
124 	const char		*usage;
125 	int			 has_pledge;
126 };
127 
128 struct playlist;
129 
130 /* amused.c */
131 void		spawn_daemon(void);
132 void		imsg_event_add(struct imsgev *iev);
133 int		imsg_compose_event(struct imsgev *, uint16_t, uint32_t,
134 		    pid_t, int, const void *, uint16_t);
135 int		main_send_player(uint16_t, int, const void *, size_t);
136 int		main_play_song(const char *);
137 void		main_playlist_jump(struct imsgev *, struct imsg *);
138 void		main_playlist_resume(void);
139 void		main_playlist_advance(void);
140 void		main_playlist_previous(void);
141 void		main_restart_track(void);
142 void		main_senderr(struct imsgev *, const char *);
143 void		main_enqueue(int, struct playlist *, struct imsgev *, struct imsg *);
144 void		main_send_playlist(struct imsgev *);
145 void		main_send_status(struct imsgev *);
146 
147 /* ctl.c */
148 __dead void	usage(void);
149 __dead void	ctl(int, char **);
150 
151 /* player.c */
152 int	player_setup(unsigned int, unsigned int, unsigned int);
153 void	player_setduration(int64_t);
154 void	player_setpos(int64_t);
155 int	play(const void *, size_t, int64_t *);
156 int	player(int, int);
157 
158 int	play_oggvorbis(int, const char **);
159 int	play_mp3(int, const char **);
160 int	play_flac(int, const char **);
161 int	play_opus(int, const char **);
162 
163 #endif