id3lib 3.8.3
header.cpp
Go to the documentation of this file.
1// $Id: header.cpp,v 1.11 2002/07/31 13:20:49 t1mpy Exp $
2
3// id3lib: a C++ library for creating and manipulating id3v1/v2 tags
4// Copyright 1999, 2000 Scott Thomas Haug
5// Copyright 2002 Thijmen Klok (thijmen@id3lib.org)
6
7// This library is free software; you can redistribute it and/or modify it
8// under the terms of the GNU Library General Public License as published by
9// the Free Software Foundation; either version 2 of the License, or (at your
10// option) any later version.
11//
12// This library is distributed in the hope that it will be useful, but WITHOUT
13// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14// FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
15// License for more details.
16//
17// You should have received a copy of the GNU Library General Public License
18// along with this library; if not, write to the Free Software Foundation,
19// Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20
21// The id3lib authors encourage improvements and optimisations to be sent to
22// the id3lib coordinator. Please see the README file for details on where to
23// send such submissions. See the AUTHORS file for a list of people who have
24// contributed to id3lib. See the ChangeLog file for a list of changes to
25// id3lib. These files are distributed with id3lib at
26// http://download.sourceforge.net/id3lib/
27
28#include "header.h"
29
30#if defined HAVE_CONFIG_H
31#include <config.h>
32#endif
33
35{
36 static ID3_Header::Info _spec_info[] =
37 {
38 // Warning, EXT SIZE are minimum sizes, they can be bigger
39 // SIZEOF SIZEOF SIZEOF IS EXT EXT EXPERIM
40 // FRID FRSZ FRFL HEADER SIZE BIT
41 { 3, 3, 0, false, 0, false }, // ID3V2_2_0
42 { 3, 3, 0, true, 8, true }, // ID3V2_2_1
43 { 4, 4, 2, false, 10, false }, // ID3V2_3_0
44 { 4, 4, 2, false, 6, false } // ID3V2_4_0
45 };
46
47 bool changed = false;
48 if (spec < ID3V2_EARLIEST || spec > ID3V2_LATEST)
49 {
50 changed = _spec != ID3V2_UNKNOWN;
52 _info = NULL;
53 }
54 else
55 {
56 changed = _spec != spec;
57 _spec = spec;
58 _info = &_spec_info[_spec - ID3V2_EARLIEST];
59 }
60 _changed = _changed || changed;
61 return changed;
62}
63
ID3_V2Spec _spec
Definition header.h:102
bool _changed
Definition header.h:106
Info * _info
Definition header.h:105
virtual bool SetSpec(ID3_V2Spec)
Definition header.cpp:34
#define NULL
Definition globals.h:743
ID3_V2Spec
Definition globals.h:162
@ ID3V2_LATEST
Definition globals.h:169
@ ID3V2_UNKNOWN
Definition globals.h:163
@ ID3V2_EARLIEST
Definition globals.h:168