1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
/* the Music Player Daemon (MPD)
* Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
* This project's homepage is: http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef PLAYER_H
#define PLAYER_H
#include "notify.h"
#include "audio_format.h"
#include <stdint.h>
enum player_state {
PLAYER_STATE_STOP = 0,
PLAYER_STATE_PAUSE,
PLAYER_STATE_PLAY
};
enum player_command {
PLAYER_COMMAND_NONE = 0,
PLAYER_COMMAND_EXIT,
PLAYER_COMMAND_STOP,
PLAYER_COMMAND_PLAY,
PLAYER_COMMAND_PAUSE,
PLAYER_COMMAND_SEEK,
PLAYER_COMMAND_CLOSE_AUDIO,
PLAYER_COMMAND_LOCK_QUEUE,
PLAYER_COMMAND_UNLOCK_QUEUE
};
#define PLAYER_ERROR_NOERROR 0
#define PLAYER_ERROR_FILE 1
#define PLAYER_ERROR_AUDIO 2
#define PLAYER_ERROR_SYSTEM 3
#define PLAYER_ERROR_UNKTYPE 4
#define PLAYER_ERROR_FILENOTFOUND 5
/* 0->1->2->3->5 regular playback
* ->4->0 don't play queued song
*/
enum player_queue_state {
/** there is no queued song */
PLAYER_QUEUE_BLANK = 0,
/** there is a queued song */
PLAYER_QUEUE_FULL = 1,
/** the player thread has forwarded the queued song to the
decoder; it waits for PLAY or STOP */
PLAYER_QUEUE_DECODE = 2,
/** tells the player thread to start playing the queued song;
this is a response to DECODE */
PLAYER_QUEUE_PLAY = 3,
/** tells the player thread to stop before playing the queued
song; this is a response to DECODE */
PLAYER_QUEUE_STOP = 4,
/** the player thread has begun playing the queued song, and
thus its queue is empty */
PLAYER_QUEUE_EMPTY = 5
};
#define PLAYER_QUEUE_UNLOCKED 0
#define PLAYER_QUEUE_LOCKED 1
struct player_control {
unsigned int buffered_before_play;
struct notify notify;
volatile enum player_command command;
volatile enum player_state state;
volatile int8_t error;
volatile uint16_t bitRate;
struct audio_format audio_format;
volatile float totalTime;
volatile float elapsedTime;
struct song *volatile next_song;
struct song *errored_song;
volatile enum player_queue_state queueState;
volatile int8_t queueLockState;
volatile double seekWhere;
volatile float crossFade;
volatile uint16_t softwareVolume;
volatile double totalPlayTime;
};
extern struct player_control pc;
void pc_init(unsigned int buffered_before_play);
void pc_deinit(void);
void
playerPlay(struct song *song);
void playerSetPause(int pause_flag);
void playerPause(void);
void playerKill(void);
int getPlayerTotalTime(void);
int getPlayerElapsedTime(void);
unsigned long getPlayerBitRate(void);
enum player_state getPlayerState(void);
void clearPlayerError(void);
char *getPlayerErrorStr(void);
int getPlayerError(void);
void playerWait(void);
void
queueSong(struct song *song);
enum player_queue_state getPlayerQueueState(void);
void setQueueState(enum player_queue_state queueState);
void playerQueueLock(void);
void playerQueueUnlock(void);
int
playerSeek(struct song *song, float seek_time);
void setPlayerCrossFade(float crossFadeInSeconds);
float getPlayerCrossFade(void);
void setPlayerSoftwareVolume(int volume);
double getPlayerTotalPlayTime(void);
static inline const struct audio_format *
player_get_audio_format(void)
{
return &pc.audio_format;
}
struct song *
playerCurrentDecodeSong(void);
void playerInit(void);
#endif
|
