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
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
|
/*
DeaDBeeF - ultimate music player for GNU/Linux systems with X11
Copyright (C) 2009-2012 Alexey Yakovenko <waker@users.sourceforge.net>
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <string.h>
#include <stdlib.h>
#include "playlist.h"
#include "deadbeef.h"
#include "metacache.h"
#include "pltmeta.h"
#define LOCK {pl_lock();}
#define UNLOCK {pl_unlock();}
void
plt_add_meta (playlist_t *it, const char *key, const char *value) {
LOCK;
// check if it's already set
DB_metaInfo_t *tail = NULL;
DB_metaInfo_t *m = it->meta;
while (m) {
if (!strcasecmp (key, m->key)) {
// duplicate key
UNLOCK;
return;
}
tail = m;
m = m->next;
}
// add
char str[256];
if (!value || !*value) {
UNLOCK;
return;
}
m = malloc (sizeof (DB_metaInfo_t));
memset (m, 0, sizeof (DB_metaInfo_t));
m->key = metacache_add_string (key); //key;
m->value = metacache_add_string (value); //strdup (value);
if (tail) {
tail->next = m;
}
else {
it->meta = m;
}
UNLOCK;
}
void
plt_append_meta (playlist_t *it, const char *key, const char *value) {
pl_lock ();
const char *old = plt_find_meta (it, key);
size_t newlen = strlen (value);
if (!old) {
plt_add_meta (it, key, value);
}
else {
// check for duplicate data
const char *str = old;
int len;
while (str) {
char *next = strchr (str, '\n');
if (next) {
len = next - str;
next++;
}
else {
len = strlen (str);
}
if (len == newlen && !memcmp (str, value, len)) {
pl_unlock ();
return;
}
str = next;
}
int sz = strlen (old) + newlen + 2;
char out[sz];
snprintf (out, sz, "%s\n%s", old, value);
plt_replace_meta (it, key, out);
}
pl_unlock ();
}
void
plt_replace_meta (playlist_t *it, const char *key, const char *value) {
LOCK;
// check if it's already set
DB_metaInfo_t *m = it->meta;
while (m) {
if (!strcasecmp (key, m->key)) {
break;
}
m = m->next;
}
if (m) {
metacache_remove_string (m->value);
m->value = metacache_add_string (value);
UNLOCK;
return;
}
else {
plt_add_meta (it, key, value);
}
UNLOCK;
}
void
plt_set_meta_int (playlist_t *it, const char *key, int value) {
char s[20];
snprintf (s, sizeof (s), "%d", value);
plt_replace_meta (it, key, s);
}
void
plt_set_meta_float (playlist_t *it, const char *key, float value) {
char s[20];
snprintf (s, sizeof (s), "%f", value);
plt_replace_meta (it, key, s);
}
void
plt_delete_meta (playlist_t *it, const char *key) {
DB_metaInfo_t *prev = NULL;
DB_metaInfo_t *m = it->meta;
while (m) {
if (!strcasecmp (key, m->key)) {
if (prev) {
prev->next = m->next;
}
else {
it->meta = m->next;
}
metacache_remove_string (m->key);
metacache_remove_string (m->value);
free (m);
break;
}
prev = m;
m = m->next;
}
}
const char *
plt_find_meta (playlist_t *it, const char *key) {
DB_metaInfo_t *m = it->meta;
while (m) {
if (!strcasecmp (key, m->key)) {
return m->value;
}
m = m->next;
}
return NULL;
}
int
plt_find_meta_int (playlist_t *it, const char *key, int def) {
pl_lock ();
const char *val = plt_find_meta (it, key);
int res = val ? atoi (val) : def;
pl_unlock ();
return res;
}
float
plt_find_meta_float (playlist_t *it, const char *key, float def) {
pl_lock ();
const char *val = plt_find_meta (it, key);
float res = val ? atof (val) : def;
pl_unlock ();
return res;
}
DB_metaInfo_t *
plt_get_metadata_head (playlist_t *it) {
return it->meta;
}
void
plt_delete_metadata (playlist_t *it, DB_metaInfo_t *meta) {
DB_metaInfo_t *prev = NULL;
DB_metaInfo_t *m = it->meta;
while (m) {
if (m == meta) {
if (prev) {
prev->next = m->next;
}
else {
it->meta = m->next;
}
metacache_remove_string (m->key);
metacache_remove_string (m->value);
free (m);
break;
}
prev = m;
m = m->next;
}
}
void
plt_delete_all_meta (playlist_t *it) {
LOCK;
DB_metaInfo_t *m = it->meta;
DB_metaInfo_t *prev = NULL;
while (m) {
DB_metaInfo_t *next = m->next;
if (m->key[0] == ':') {
prev = m;
}
else {
if (prev) {
prev->next = next;
}
else {
it->meta = next;
}
metacache_remove_string (m->key);
metacache_remove_string (m->value);
free (m);
}
m = next;
}
UNLOCK;
}
int
plt_get_meta (playlist_t *handle, const char *key, char *val, int size) {
*val = 0;
LOCK;
const char *v = plt_find_meta (handle, key);
if (!v) {
UNLOCK;
return 0;
}
strncpy (val, v, size);
UNLOCK;
return 1;
}
|
