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<h1>src/header.cpp</h1><a href="header_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// $Id: header.cpp,v 1.11 2002/07/31 13:20:49 t1mpy Exp $</span>
<a name="l00002"></a>00002
<a name="l00003"></a>00003 <span class="comment">// id3lib: a C++ library for creating and manipulating id3v1/v2 tags</span>
<a name="l00004"></a>00004 <span class="comment">// Copyright 1999, 2000 Scott Thomas Haug</span>
<a name="l00005"></a>00005 <span class="comment">// Copyright 2002 Thijmen Klok (thijmen@id3lib.org)</span>
<a name="l00006"></a>00006
<a name="l00007"></a>00007 <span class="comment">// This library is free software; you can redistribute it and/or modify it</span>
<a name="l00008"></a>00008 <span class="comment">// under the terms of the GNU Library General Public License as published by</span>
<a name="l00009"></a>00009 <span class="comment">// the Free Software Foundation; either version 2 of the License, or (at your</span>
<a name="l00010"></a>00010 <span class="comment">// option) any later version.</span>
<a name="l00011"></a>00011 <span class="comment">//</span>
<a name="l00012"></a>00012 <span class="comment">// This library is distributed in the hope that it will be useful, but WITHOUT</span>
<a name="l00013"></a>00013 <span class="comment">// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or</span>
<a name="l00014"></a>00014 <span class="comment">// FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public</span>
<a name="l00015"></a>00015 <span class="comment">// License for more details.</span>
<a name="l00016"></a>00016 <span class="comment">//</span>
<a name="l00017"></a>00017 <span class="comment">// You should have received a copy of the GNU Library General Public License</span>
<a name="l00018"></a>00018 <span class="comment">// along with this library; if not, write to the Free Software Foundation,</span>
<a name="l00019"></a>00019 <span class="comment">// Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.</span>
<a name="l00020"></a>00020
<a name="l00021"></a>00021 <span class="comment">// The id3lib authors encourage improvements and optimisations to be sent to</span>
<a name="l00022"></a>00022 <span class="comment">// the id3lib coordinator. Please see the README file for details on where to</span>
<a name="l00023"></a>00023 <span class="comment">// send such submissions. See the AUTHORS file for a list of people who have</span>
<a name="l00024"></a>00024 <span class="comment">// contributed to id3lib. See the ChangeLog file for a list of changes to</span>
<a name="l00025"></a>00025 <span class="comment">// id3lib. These files are distributed with id3lib at</span>
<a name="l00026"></a>00026 <span class="comment">// http://download.sourceforge.net/id3lib/</span>
<a name="l00027"></a>00027
<a name="l00028"></a>00028 <span class="preprocessor">#include "<a class="code" href="header_8h.html">header.h</a>"</span>
<a name="l00029"></a>00029
<a name="l00030"></a>00030 <span class="preprocessor">#if defined HAVE_CONFIG_H</span>
<a name="l00031"></a>00031 <span class="preprocessor"></span><span class="preprocessor">#include <config.h></span>
<a name="l00032"></a>00032 <span class="preprocessor">#endif</span>
<a name="l00033"></a>00033 <span class="preprocessor"></span>
<a name="l00034"></a><a class="code" href="class_i_d3___header.html#ae6f5c68fbe93d4df26fed5c2935a27e3">00034</a> <span class="keywordtype">bool</span> <a class="code" href="class_i_d3___header.html#ae6f5c68fbe93d4df26fed5c2935a27e3">ID3_Header::SetSpec</a>(<a class="code" href="globals_8h.html#a48b13eb6cb3c520195901516dee1e612">ID3_V2Spec</a> spec)
<a name="l00035"></a>00035 {
<a name="l00036"></a>00036 <span class="keyword">static</span> <a class="code" href="struct_i_d3___header_1_1_info.html">ID3_Header::Info</a> _spec_info[] =
<a name="l00037"></a>00037 {
<a name="l00038"></a>00038 <span class="comment">// Warning, EXT SIZE are minimum sizes, they can be bigger</span>
<a name="l00039"></a>00039 <span class="comment">// SIZEOF SIZEOF SIZEOF IS EXT EXT EXPERIM</span>
<a name="l00040"></a>00040 <span class="comment">// FRID FRSZ FRFL HEADER SIZE BIT</span>
<a name="l00041"></a>00041 { 3, 3, 0, <span class="keyword">false</span>, 0, <span class="keyword">false</span> }, <span class="comment">// ID3V2_2_0</span>
<a name="l00042"></a>00042 { 3, 3, 0, <span class="keyword">true</span>, 8, <span class="keyword">true</span> }, <span class="comment">// ID3V2_2_1</span>
<a name="l00043"></a>00043 { 4, 4, 2, <span class="keyword">false</span>, 10, <span class="keyword">false</span> }, <span class="comment">// ID3V2_3_0</span>
<a name="l00044"></a>00044 { 4, 4, 2, <span class="keyword">false</span>, 6, <span class="keyword">false</span> } <span class="comment">// ID3V2_4_0</span>
<a name="l00045"></a>00045 };
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <span class="keywordtype">bool</span> changed = <span class="keyword">false</span>;
<a name="l00048"></a>00048 <span class="keywordflow">if</span> (spec < ID3V2_EARLIEST || spec > <a class="code" href="globals_8h.html#a48b13eb6cb3c520195901516dee1e612a05369f9f8d36bd4d8ebfd5188f156f6b">ID3V2_LATEST</a>)
<a name="l00049"></a>00049 {
<a name="l00050"></a>00050 changed = <a class="code" href="class_i_d3___header.html#a1c0a5706f5b3db8f239610bff25c77ef">_spec</a> != <a class="code" href="globals_8h.html#a48b13eb6cb3c520195901516dee1e612a69461b388782e6d8c97db6fb3d4a4d79">ID3V2_UNKNOWN</a>;
<a name="l00051"></a>00051 <a class="code" href="class_i_d3___header.html#a1c0a5706f5b3db8f239610bff25c77ef">_spec</a> = <a class="code" href="globals_8h.html#a48b13eb6cb3c520195901516dee1e612a69461b388782e6d8c97db6fb3d4a4d79">ID3V2_UNKNOWN</a>;
<a name="l00052"></a>00052 <a class="code" href="class_i_d3___header.html#aabd26d3bbd84b38f5b207ab95f68800e">_info</a> = <a class="code" href="globals_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;
<a name="l00053"></a>00053 }
<a name="l00054"></a>00054 <span class="keywordflow">else</span>
<a name="l00055"></a>00055 {
<a name="l00056"></a>00056 changed = <a class="code" href="class_i_d3___header.html#a1c0a5706f5b3db8f239610bff25c77ef">_spec</a> != spec;
<a name="l00057"></a>00057 <a class="code" href="class_i_d3___header.html#a1c0a5706f5b3db8f239610bff25c77ef">_spec</a> = spec;
<a name="l00058"></a>00058 <a class="code" href="class_i_d3___header.html#aabd26d3bbd84b38f5b207ab95f68800e">_info</a> = &_spec_info[<a class="code" href="class_i_d3___header.html#a1c0a5706f5b3db8f239610bff25c77ef">_spec</a> - <a class="code" href="globals_8h.html#a48b13eb6cb3c520195901516dee1e612aa4ef19a245eea399cf6db779d34ee5b2">ID3V2_EARLIEST</a>];
<a name="l00059"></a>00059 }
<a name="l00060"></a>00060 <a class="code" href="class_i_d3___header.html#a31b9c5422408071d2f063a4130861de3">_changed</a> = <a class="code" href="class_i_d3___header.html#a31b9c5422408071d2f063a4130861de3">_changed</a> || changed;
<a name="l00061"></a>00061 <span class="keywordflow">return</span> changed;
<a name="l00062"></a>00062 }
<a name="l00063"></a>00063
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