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
|
/*
* Copyright (C) 2003-2009 The Music Player Daemon Project
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "song.h"
#include "uri.h"
#include "directory.h"
#include "mapper.h"
#include "decoder_list.h"
#include "decoder_plugin.h"
#include "tag_ape.h"
#include "tag_id3.h"
#include "tag.h"
#include <glib.h>
#include <assert.h>
#include <sys/types.h>
#include <sys/stat.h>
struct song *
song_file_load(const char *path, struct directory *parent)
{
struct song *song;
bool ret;
assert((parent == NULL) == (*path == '/'));
assert(!uri_has_scheme(path));
assert(strchr(path, '\n') == NULL);
song = song_file_new(path, parent);
//in archive ?
if (parent != NULL && parent->device == DEVICE_INARCHIVE) {
ret = song_file_update_inarchive(song);
} else {
ret = song_file_update(song);
}
if (!ret) {
song_free(song);
return NULL;
}
return song;
}
/**
* Attempts to load APE or ID3 tags from the specified file.
*/
static struct tag *
tag_load_fallback(const char *path)
{
struct tag *tag = tag_ape_load(path);
if (tag == NULL)
tag = tag_id3_load(path);
return tag;
}
/**
* The decoder plugin failed to load any tags: fall back to the APE or
* ID3 tag loader.
*/
static struct tag *
tag_fallback(const char *path, struct tag *tag)
{
struct tag *fallback = tag_load_fallback(path);
if (fallback != NULL) {
/* tag was successfully loaded: copy the song
duration, and destroy the old (empty) tag */
fallback->time = tag->time;
tag_free(tag);
return fallback;
} else
/* no APE/ID3 tag found: return the empty tag */
return tag;
}
bool
song_file_update(struct song *song)
{
const char *suffix;
char *path_fs;
const struct decoder_plugin *plugin;
struct stat st;
assert(song_is_file(song));
/* check if there's a suffix and a plugin */
suffix = uri_get_suffix(song->url);
if (suffix == NULL)
return false;
plugin = decoder_plugin_from_suffix(suffix, false);
if (plugin == NULL)
return false;
path_fs = map_song_fs(song);
if (path_fs == NULL)
return false;
if (song->tag != NULL) {
tag_free(song->tag);
song->tag = NULL;
}
if (stat(path_fs, &st) < 0 || !S_ISREG(st.st_mode)) {
g_free(path_fs);
return false;
}
song->mtime = st.st_mtime;
do {
song->tag = plugin->tag_dup(path_fs);
if (song->tag != NULL)
break;
plugin = decoder_plugin_from_suffix(suffix, true);
} while (plugin != NULL);
if (song->tag != NULL && tag_is_empty(song->tag))
song->tag = tag_fallback(path_fs, song->tag);
g_free(path_fs);
return song->tag != NULL;
}
bool
song_file_update_inarchive(struct song *song)
{
const char *suffix;
const struct decoder_plugin *plugin;
assert(song_is_file(song));
/* check if there's a suffix and a plugin */
suffix = uri_get_suffix(song->url);
if (suffix == NULL)
return false;
plugin = decoder_plugin_from_suffix(suffix, false);
if (plugin == NULL)
return false;
if (song->tag != NULL)
tag_free(song->tag);
//accept every file that has music suffix
//because we dont support tag reading throught
//input streams
song->tag = tag_new();
return true;
}
|
