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
|
//---------------------------------------------------------------------------
// Provide read-only access to flac stream tags. Supports id3v1 tags
// without any additional libraries.
//
// Copyright (c) 2002 by Drew Hess <dhess@bothan.net>
//
// code theft from Josh Coalson's flac xmms plugin (C) 2001 by Josh Coalson
//
/* This file is part of AlsaPlayer.
*
* AlsaPlayer 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 3 of the License, or
* (at your option) any later version.
*
* AlsaPlayer 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, see <http://www.gnu.org/licenses/>.
*/
//--------------------------------------------------------------------------
#include "FlacId3Tag.h"
#include <cstdio>
#include <cstring>
#include "reader.h"
static bool
findId3Tag (reader_type * f, char * tag)
{
if (reader_seek (f, -128, SEEK_END) != 0)
return false;
if (reader_read (tag, 128, f) != 128)
return false;
return strncmp (tag, "TAG", 3) == 0 ? true : false;
} // findId3Tag
namespace Flac
{
typedef struct {
char raw[128];
char title[31];
char artist[31];
char album[31];
char comment[31];
char year[5];
char track[4];
char genre[4];
} id3v1_struct;
// static
bool
FlacId3Tag::hasId3 (const std::string & name)
{
static char tag[128];
reader_type * f = reader_open (name.c_str (), NULL, NULL);
if (!f)
return false;
bool status = findId3Tag (f, tag);
reader_close (f);
return status;
} // FlacId3Tag::hasId3
FlacId3Tag::FlacId3Tag (const std::string & name)
: FlacTag (name)
{
reader_type * f = reader_open (name.c_str (), NULL, NULL);
if (!f)
return;
id3v1_struct tag_;
memset ((void *) & tag_, 0, sizeof (id3v1_struct));
if (!findId3Tag (f, tag_.raw))
return;
memcpy(tag_.title, tag_.raw+3, 30);
memcpy(tag_.artist, tag_.raw+33, 30);
memcpy(tag_.album, tag_.raw+63, 30);
memcpy(tag_.year, tag_.raw+93, 4);
memcpy(tag_.comment, tag_.raw+97, 30);
snprintf (tag_.genre, sizeof (tag_.genre), "%u", (unsigned char) tag_.raw[127]);
snprintf (tag_.track, sizeof (tag_.track), "%u", (unsigned char) tag_.raw[126]);
_artist = tag_.artist;
_title = tag_.title;
_track = tag_.track;
_album = tag_.album;
_year = tag_.year;
_comment = tag_.comment;
_genre = tag_.genre;
} // FlacId3Tag::FlacId3Tag
} // namespace Flac
|
