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<hr><h1>src/header.cpp</h1><a href="header_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <font class="comment">// $Id: header.cpp,v 1.9 2000/09/11 07:46:32 eldamitri Exp $</font>
00002
00003 <font class="comment">// id3lib: a C++ library for creating and manipulating id3v1/v2 tags</font>
00004 <font class="comment">// Copyright 1999, 2000 Scott Thomas Haug</font>
00005
00006 <font class="comment">// This library is free software; you can redistribute it and/or modify it</font>
00007 <font class="comment">// under the terms of the GNU Library General Public License as published by</font>
00008 <font class="comment">// the Free Software Foundation; either version 2 of the License, or (at your</font>
00009 <font class="comment">// option) any later version.</font>
00010 <font class="comment">//</font>
00011 <font class="comment">// This library is distributed in the hope that it will be useful, but WITHOUT</font>
00012 <font class="comment">// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or</font>
00013 <font class="comment">// FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public</font>
00014 <font class="comment">// License for more details.</font>
00015 <font class="comment">//</font>
00016 <font class="comment">// You should have received a copy of the GNU Library General Public License</font>
00017 <font class="comment">// along with this library; if not, write to the Free Software Foundation,</font>
00018 <font class="comment">// Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.</font>
00019
00020 <font class="comment">// The id3lib authors encourage improvements and optimisations to be sent to</font>
00021 <font class="comment">// the id3lib coordinator. Please see the README file for details on where to</font>
00022 <font class="comment">// send such submissions. See the AUTHORS file for a list of people who have</font>
00023 <font class="comment">// contributed to id3lib. See the ChangeLog file for a list of changes to</font>
00024 <font class="comment">// id3lib. These files are distributed with id3lib at</font>
00025 <font class="comment">// http://download.sourceforge.net/id3lib/</font>
00026
00027 <font class="preprocessor">#include "<a class="code" href="header_8h.html">header.h</a>"</font>
00028
00029 <font class="preprocessor">#if defined HAVE_CONFIG_H</font>
00030 <font class="preprocessor"></font><font class="preprocessor">#include <config.h></font>
00031 <font class="preprocessor">#endif</font>
00032 <font class="preprocessor"></font>
00033 <font class="keyword">static</font> <font class="keyword">const</font> <a class="code" href="struct_i_d3___header_1_1_info.html">ID3_Header::Info</a> _spec_info[] =
00034 {
00035 <font class="comment">// SIZEOF SIZEOF SIZEOF EXT EXT EXPERIM</font>
00036 <font class="comment">// FRID FRSZ FRFL HEADER SIZE BIT</font>
00037 { 3, 3, 0, <font class="keyword">false</font>, 0, <font class="keyword">false</font> }, <font class="comment">// ID3V2_2_0</font>
00038 { 3, 3, 0, <font class="keyword">true</font>, 8, <font class="keyword">true</font> }, <font class="comment">// ID3V2_2_1</font>
00039 { 4, 4, 2, <font class="keyword">false</font>, 10, <font class="keyword">false</font> } <font class="comment">// ID3V2_3_0</font>
00040 };
00041
<a name="l00042"></a><a class="code" href="class_i_d3___header.html#a2">00042</a> <font class="keywordtype">bool</font> <a class="code" href="class_i_d3___header.html#a2">ID3_Header::SetSpec</a>(<a class="code" href="globals_8h.html#a216">ID3_V2Spec</a> spec)
00043 {
00044 <font class="keywordtype">bool</font> changed = <font class="keyword">false</font>;
00045 <font class="keywordflow">if</font> (spec < ID3V2_EARLIEST || spec > <a class="code" href="globals_8h.html#a216a58">ID3V2_LATEST</a>)
00046 {
00047 changed = <a class="code" href="class_i_d3___header.html#n0">_spec</a> != <a class="code" href="globals_8h.html#a216a52">ID3V2_UNKNOWN</a>;
00048 <a class="code" href="class_i_d3___header.html#n0">_spec</a> = <a class="code" href="globals_8h.html#a216a52">ID3V2_UNKNOWN</a>;
00049 <a class="code" href="class_i_d3___header.html#n3">_info</a> = <a class="code" href="globals_8h.html#a24">NULL</a>;
00050 }
00051 <font class="keywordflow">else</font>
00052 {
00053 changed = <a class="code" href="class_i_d3___header.html#n0">_spec</a> != spec;
00054 <a class="code" href="class_i_d3___header.html#n0">_spec</a> = spec;
00055 <a class="code" href="class_i_d3___header.html#n3">_info</a> = &_spec_info[<a class="code" href="class_i_d3___header.html#n0">_spec</a> - <a class="code" href="globals_8h.html#a216a57">ID3V2_EARLIEST</a>];
00056 }
00057 <a class="code" href="class_i_d3___header.html#n4">_changed</a> = <a class="code" href="class_i_d3___header.html#n4">_changed</a> || changed;
00058 <font class="keywordflow">return</font> changed;
00059 }
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