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
|
/* 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
*/
#include "playerData.h"
#include "conf.h"
#include "log.h"
#include "utils.h"
unsigned int buffered_before_play;
#define DEFAULT_BUFFER_SIZE 2048
#define DEFAULT_BUFFER_BEFORE_PLAY 10
static PlayerData playerData_pd;
PlayerControl pc;
void initPlayerData(void)
{
float perc = DEFAULT_BUFFER_BEFORE_PLAY;
char *test;
int crossfade = 0;
size_t bufferSize = DEFAULT_BUFFER_SIZE;
unsigned int buffered_chunks;
ConfigParam *param;
size_t device_array_size = audio_device_count() * sizeof(mpd_sint8);
param = getConfigParam(CONF_AUDIO_BUFFER_SIZE);
if (param) {
bufferSize = strtol(param->value, &test, 10);
if (*test != '\0' || bufferSize <= 0) {
FATAL("buffer size \"%s\" is not a positive integer, "
"line %i\n", param->value, param->line);
}
}
bufferSize *= 1024;
buffered_chunks = bufferSize / CHUNK_SIZE;
if (buffered_chunks >= 1 << 15) {
FATAL("buffer size \"%li\" is too big\n", (long)bufferSize);
}
param = getConfigParam(CONF_BUFFER_BEFORE_PLAY);
if (param) {
perc = strtod(param->value, &test);
if (*test != '%' || perc < 0 || perc > 100) {
FATAL("buffered before play \"%s\" is not a positive "
"percentage and less than 100 percent, line %i"
"\n", param->value, param->line);
}
}
buffered_before_play = (perc / 100) * buffered_chunks;
if (buffered_before_play > buffered_chunks) {
buffered_before_play = buffered_chunks;
}
playerData_pd.audioDeviceStates = xmalloc(device_array_size);
initOutputBuffer(&(playerData_pd.buffer), buffered_chunks);
notifyInit(&pc.notify);
pc.error = PLAYER_ERROR_NOERROR;
pc.state = PLAYER_STATE_STOP;
pc.queueState = PLAYER_QUEUE_BLANK;
pc.queueLockState = PLAYER_QUEUE_UNLOCKED;
pc.crossFade = crossfade;
pc.softwareVolume = 1000;
notifyInit(&playerData_pd.decoderControl.notify);
playerData_pd.decoderControl.stop = 0;
playerData_pd.decoderControl.start = 0;
playerData_pd.decoderControl.state = DECODE_STATE_STOP;
playerData_pd.decoderControl.seek = 0;
playerData_pd.decoderControl.error = DECODE_ERROR_NOERROR;
playerData_pd.decoderControl.current_song = NULL;
}
PlayerData *getPlayerData(void)
{
return &playerData_pd;
}
void freePlayerData(void)
{
/* We don't want to release this memory until we know our player and
* decoder have exited. Otherwise, their signal handlers will want to
* access playerData_pd and we need to keep it available for them */
waitpid(-1, NULL, 0);
output_buffer_free(&playerData_pd.buffer);
free(playerData_pd.audioDeviceStates);
}
|
