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<title>id3lib: src/tag_parse_musicmatch.cpp Source File</title>
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<h1>src/tag_parse_musicmatch.cpp</h1> </div>
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<a href="tag__parse__musicmatch_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: tag_parse_musicmatch.cpp,v 1.19 2002/07/02 22:15:18 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
<a name="l00006"></a>00006 <span class="comment">// This library is free software; you can redistribute it and/or modify it</span>
<a name="l00007"></a>00007 <span class="comment">// under the terms of the GNU Library General Public License as published by</span>
<a name="l00008"></a>00008 <span class="comment">// the Free Software Foundation; either version 2 of the License, or (at your</span>
<a name="l00009"></a>00009 <span class="comment">// option) any later version.</span>
<a name="l00010"></a>00010 <span class="comment">//</span>
<a name="l00011"></a>00011 <span class="comment">// This library is distributed in the hope that it will be useful, but WITHOUT</span>
<a name="l00012"></a>00012 <span class="comment">// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or</span>
<a name="l00013"></a>00013 <span class="comment">// FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public</span>
<a name="l00014"></a>00014 <span class="comment">// License for more details.</span>
<a name="l00015"></a>00015 <span class="comment">//</span>
<a name="l00016"></a>00016 <span class="comment">// You should have received a copy of the GNU Library General Public License</span>
<a name="l00017"></a>00017 <span class="comment">// along with this library; if not, write to the Free Software Foundation,</span>
<a name="l00018"></a>00018 <span class="comment">// Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.</span>
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="comment">// The id3lib authors encourage improvements and optimisations to be sent to</span>
<a name="l00021"></a>00021 <span class="comment">// the id3lib coordinator. Please see the README file for details on where to</span>
<a name="l00022"></a>00022 <span class="comment">// send such submissions. See the AUTHORS file for a list of people who have</span>
<a name="l00023"></a>00023 <span class="comment">// contributed to id3lib. See the ChangeLog file for a list of changes to</span>
<a name="l00024"></a>00024 <span class="comment">// id3lib. These files are distributed with id3lib at</span>
<a name="l00025"></a>00025 <span class="comment">// http://download.sourceforge.net/id3lib/</span>
<a name="l00026"></a>00026
<a name="l00027"></a>00027 <span class="preprocessor">#if defined HAVE_CONFIG_H</span>
<a name="l00028"></a>00028 <span class="preprocessor"></span><span class="preprocessor">#include <config.h></span>
<a name="l00029"></a>00029 <span class="preprocessor">#endif</span>
<a name="l00030"></a>00030 <span class="preprocessor"></span>
<a name="l00031"></a>00031
<a name="l00032"></a>00032 <span class="preprocessor">#include <ctype.h></span>
<a name="l00033"></a>00033 <span class="preprocessor">#include "<a class="code" href="tag__impl_8h.html">tag_impl.h</a>"</span> <span class="comment">//has <stdio.h> "tag.h" "header_tag.h" "frame.h" "field.h" "spec.h" "id3lib_strings.h" "utils.h"</span>
<a name="l00034"></a>00034 <span class="preprocessor">#include "helpers.h"</span>
<a name="l00035"></a>00035 <span class="preprocessor">#include "id3/io_decorators.h"</span> <span class="comment">//has "readers.h" "io_helpers.h" "utils.h"</span>
<a name="l00036"></a>00036
<a name="l00037"></a>00037 <span class="keyword">using namespace </span>dami;
<a name="l00038"></a>00038
<a name="l00039"></a>00039 <span class="keyword">namespace </span>
<a name="l00040"></a>00040 {
<a name="l00041"></a>00041 uint32 readSeconds(<a class="code" href="class_i_d3___reader.html">ID3_Reader</a>& reader, <span class="keywordtype">size_t</span> len)
<a name="l00042"></a>00042 {
<a name="l00043"></a>00043 io::ExitTrigger et(reader);
<a name="l00044"></a>00044 io::WindowedReader wr(reader, len);
<a name="l00045"></a>00045 <a class="code" href="class_i_d3___reader.html#a83194ea4d4e04e81302b095e9aa2275a">ID3_Reader::pos_type</a> beg = wr.getCur();
<a name="l00046"></a>00046 uint32 seconds = 0;
<a name="l00047"></a>00047 uint32 cur = 0;
<a name="l00048"></a>00048 <span class="keywordflow">while</span> (!wr.atEnd())
<a name="l00049"></a>00049 {
<a name="l00050"></a>00050 <a class="code" href="class_i_d3___reader.html#abc80771e4ce81188082eaa8fa90a67e6">ID3_Reader::char_type</a> ch = wr.readChar();
<a name="l00051"></a>00051 <span class="keywordflow">if</span> (<span class="charliteral">':'</span> == ch)
<a name="l00052"></a>00052 {
<a name="l00053"></a>00053 seconds += 60 * cur;
<a name="l00054"></a>00054 cur = 0;
<a name="l00055"></a>00055 }
<a name="l00056"></a>00056 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!isdigit(ch))
<a name="l00057"></a>00057 {
<a name="l00058"></a>00058 <span class="keywordflow">return</span> 0;
<a name="l00059"></a>00059 }
<a name="l00060"></a>00060 <span class="keywordflow">else</span>
<a name="l00061"></a>00061 {
<a name="l00062"></a>00062 cur = cur * 10 + (ch - <span class="charliteral">'0'</span>);
<a name="l00063"></a>00063 }
<a name="l00064"></a>00064 }
<a name="l00065"></a>00065 et.release();
<a name="l00066"></a>00066 <span class="keywordflow">return</span> seconds + cur;
<a name="l00067"></a>00067 }
<a name="l00068"></a>00068
<a name="l00069"></a>00069 <a class="code" href="class_i_d3___frame.html" title="The representative class of an id3v2 frame.">ID3_Frame</a>* readTextFrame(<a class="code" href="class_i_d3___reader.html">ID3_Reader</a>& reader, <a class="code" href="globals_8h.html#a78f454bf66f16b1e1c9f8e37bda9ab8a" title="Enumeration of the different types of frames recognized by id3lib.">ID3_FrameID</a> <span class="keywordtype">id</span>, <span class="keyword">const</span> String desc = <span class="stringliteral">""</span>)
<a name="l00070"></a>00070 {
<a name="l00071"></a>00071 uint32 size = io::readLENumber(reader, 2);
<a name="l00072"></a>00072 ID3D_NOTICE( <span class="stringliteral">"readTextFrame: size = "</span> << size );
<a name="l00073"></a>00073 <span class="keywordflow">if</span> (size == 0)
<a name="l00074"></a>00074 {
<a name="l00075"></a>00075 <span class="keywordflow">return</span> <a class="code" href="globals_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;
<a name="l00076"></a>00076 }
<a name="l00077"></a>00077
<a name="l00078"></a>00078 String text;
<a name="l00079"></a>00079 <span class="keywordflow">if</span> (<a class="code" href="globals_8h.html#a78f454bf66f16b1e1c9f8e37bda9ab8aaa2047f42426480aac38e6e10d49918aa" title="Length.">ID3FID_SONGLEN</a> != <span class="keywordtype">id</span>)
<a name="l00080"></a>00080 {
<a name="l00081"></a>00081 io::LineFeedReader lfr(reader);
<a name="l00082"></a>00082 text = io::readText(lfr, size);
<a name="l00083"></a>00083 ID3D_NOTICE( <span class="stringliteral">"readTextFrame: text = "</span> << text );
<a name="l00084"></a>00084 }
<a name="l00085"></a>00085 <span class="keywordflow">else</span>
<a name="l00086"></a>00086 {
<a name="l00087"></a>00087 text = toString(readSeconds(reader, size) * 1000);
<a name="l00088"></a>00088 ID3D_NOTICE( <span class="stringliteral">"readTextFrame: songlen = "</span> << text );
<a name="l00089"></a>00089 }
<a name="l00090"></a>00090
<a name="l00091"></a>00091 <a class="code" href="class_i_d3___frame.html" title="The representative class of an id3v2 frame.">ID3_Frame</a>* frame = <span class="keyword">new</span> <a class="code" href="class_i_d3___frame.html" title="The representative class of an id3v2 frame.">ID3_Frame</a>(<span class="keywordtype">id</span>);
<a name="l00092"></a>00092 <span class="keywordflow">if</span> (frame)
<a name="l00093"></a>00093 {
<a name="l00094"></a>00094 <span class="keywordflow">if</span> (frame-><a class="code" href="class_i_d3___frame.html#ad5d20e40b233e124a9bd84c6a8947fee">Contains</a>(<a class="code" href="globals_8h.html#a23cab982426a968437cd731900cfeb2cab4a3b9cafedc2cede90380c79edca044" title="Text field.">ID3FN_TEXT</a>))
<a name="l00095"></a>00095 {
<a name="l00096"></a>00096 frame-><a class="code" href="class_i_d3___frame.html#a6491b36aee70776ed656896daa42ef80">GetField</a>(<a class="code" href="globals_8h.html#a23cab982426a968437cd731900cfeb2cab4a3b9cafedc2cede90380c79edca044" title="Text field.">ID3FN_TEXT</a>)-><a class="code" href="class_i_d3___field.html#a16387cf6c54df5432a0c048d6a931f03">Set</a>(text.c_str());
<a name="l00097"></a>00097 }
<a name="l00098"></a>00098 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (frame-><a class="code" href="class_i_d3___frame.html#ad5d20e40b233e124a9bd84c6a8947fee">Contains</a>(<a class="code" href="globals_8h.html#a23cab982426a968437cd731900cfeb2cabab371e3f25ac3376924280e298cf9f0" title="A URL.">ID3FN_URL</a>))
<a name="l00099"></a>00099 {
<a name="l00100"></a>00100 frame-><a class="code" href="class_i_d3___frame.html#a6491b36aee70776ed656896daa42ef80">GetField</a>(<a class="code" href="globals_8h.html#a23cab982426a968437cd731900cfeb2cabab371e3f25ac3376924280e298cf9f0" title="A URL.">ID3FN_URL</a>)-><a class="code" href="class_i_d3___field.html#a16387cf6c54df5432a0c048d6a931f03">Set</a>(text.c_str());
<a name="l00101"></a>00101 }
<a name="l00102"></a>00102 <span class="keywordflow">if</span> (frame-><a class="code" href="class_i_d3___frame.html#ad5d20e40b233e124a9bd84c6a8947fee">Contains</a>(<a class="code" href="globals_8h.html#a23cab982426a968437cd731900cfeb2caae0e0a0e19501463ffb19f355fb36768" title="Language field.">ID3FN_LANGUAGE</a>))
<a name="l00103"></a>00103 {
<a name="l00104"></a>00104 frame-><a class="code" href="class_i_d3___frame.html#a6491b36aee70776ed656896daa42ef80">GetField</a>(<a class="code" href="globals_8h.html#a23cab982426a968437cd731900cfeb2caae0e0a0e19501463ffb19f355fb36768" title="Language field.">ID3FN_LANGUAGE</a>)-><a class="code" href="class_i_d3___field.html#a16387cf6c54df5432a0c048d6a931f03">Set</a>(<span class="stringliteral">"XXX"</span>);
<a name="l00105"></a>00105 }
<a name="l00106"></a>00106 <span class="keywordflow">if</span> (frame-><a class="code" href="class_i_d3___frame.html#ad5d20e40b233e124a9bd84c6a8947fee">Contains</a>(<a class="code" href="globals_8h.html#a23cab982426a968437cd731900cfeb2ca6898b894ce725eb89b42dc6f4f9117e5" title="Description field.">ID3FN_DESCRIPTION</a>))
<a name="l00107"></a>00107 {
<a name="l00108"></a>00108 frame-><a class="code" href="class_i_d3___frame.html#a6491b36aee70776ed656896daa42ef80">GetField</a>(<a class="code" href="globals_8h.html#a23cab982426a968437cd731900cfeb2ca6898b894ce725eb89b42dc6f4f9117e5" title="Description field.">ID3FN_DESCRIPTION</a>)-><a class="code" href="class_i_d3___field.html#a16387cf6c54df5432a0c048d6a931f03">Set</a>(desc.c_str());
<a name="l00109"></a>00109 }
<a name="l00110"></a>00110 }
<a name="l00111"></a>00111 <span class="keywordflow">return</span> frame;
<a name="l00112"></a>00112 }
<a name="l00113"></a>00113 };
<a name="l00114"></a>00114
<a name="l00115"></a><a class="code" href="namespacedami_1_1mm.html#a89e914b3a9c702961c3f5df58369e77a">00115</a> <span class="keywordtype">bool</span> <a class="code" href="namespacedami_1_1mm.html#a89e914b3a9c702961c3f5df58369e77a">mm::parse</a>(<a class="code" href="class_i_d3___tag_impl.html">ID3_TagImpl</a>& tag, <a class="code" href="class_i_d3___reader.html">ID3_Reader</a>& rdr)
<a name="l00116"></a>00116 {
<a name="l00117"></a>00117 io::ExitTrigger et(rdr);
<a name="l00118"></a>00118 <a class="code" href="class_i_d3___reader.html#a83194ea4d4e04e81302b095e9aa2275a">ID3_Reader::pos_type</a> end = rdr.<a class="code" href="class_i_d3___reader.html#a232935e138e44ea49e5a289fb8d7ac94" title="Return the current position in the reader.">getCur</a>();
<a name="l00119"></a>00119 <span class="keywordflow">if</span> (end < rdr.<a class="code" href="class_i_d3___reader.html#aeaf468ffe03c08731dcaf268fff3391b" title="Return the beginning position in the reader.">getBeg</a>() + 48)
<a name="l00120"></a>00120 {
<a name="l00121"></a>00121 ID3D_NOTICE( <span class="stringliteral">"mm::parse: bailing, not enough bytes to parse, pos = "</span> << end );
<a name="l00122"></a>00122 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00123"></a>00123 }
<a name="l00124"></a>00124
<a name="l00125"></a>00125 rdr.<a class="code" href="class_i_d3___reader.html#a1630f369cc7aa65a2279542715e9f483" title="Set the value of the current position for reading.">setCur</a>(end - 48);
<a name="l00126"></a>00126 String version;
<a name="l00127"></a>00127
<a name="l00128"></a>00128 {
<a name="l00129"></a>00129 <span class="keywordflow">if</span> (io::readText(rdr, 32) != <span class="stringliteral">"Brava Software Inc. "</span>)
<a name="l00130"></a>00130 {
<a name="l00131"></a>00131 ID3D_NOTICE( <span class="stringliteral">"mm::parse: bailing, couldn't find footer"</span> );
<a name="l00132"></a>00132 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00133"></a>00133 }
<a name="l00134"></a>00134
<a name="l00135"></a>00135 version = io::readText(rdr, 4);
<a name="l00136"></a>00136 <span class="keywordflow">if</span> (version.size() != 4 ||
<a name="l00137"></a>00137 !isdigit(version[0]) || version[1] != <span class="charliteral">'.'</span> ||
<a name="l00138"></a>00138 !isdigit(version[2]) ||
<a name="l00139"></a>00139 !isdigit(version[3]))
<a name="l00140"></a>00140 {
<a name="l00141"></a>00141 ID3D_WARNING( <span class="stringliteral">"mm::parse: bailing, nonstandard version = "</span> << version );
<a name="l00142"></a>00142 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00143"></a>00143 }
<a name="l00144"></a>00144 }
<a name="l00145"></a>00145
<a name="l00146"></a>00146 <a class="code" href="class_i_d3___reader.html#a83194ea4d4e04e81302b095e9aa2275a">ID3_Reader::pos_type</a> beg = rdr.<a class="code" href="class_i_d3___reader.html#a1630f369cc7aa65a2279542715e9f483" title="Set the value of the current position for reading.">setCur</a>(end - 48);
<a name="l00147"></a>00147 et.setExitPos(beg);
<a name="l00148"></a>00148 <span class="keywordflow">if</span> (end < 68)
<a name="l00149"></a>00149 {
<a name="l00150"></a>00150 ID3D_NOTICE( <span class="stringliteral">"mm::parse: bailing, not enough bytes to parse offsets, pos = "</span> << end );
<a name="l00151"></a>00151 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00152"></a>00152 }
<a name="l00153"></a>00153 rdr.<a class="code" href="class_i_d3___reader.html#a1630f369cc7aa65a2279542715e9f483" title="Set the value of the current position for reading.">setCur</a>(end - 68);
<a name="l00154"></a>00154
<a name="l00155"></a>00155 io::WindowedReader dataWindow(rdr);
<a name="l00156"></a>00156 dataWindow.setEnd(rdr.<a class="code" href="class_i_d3___reader.html#a232935e138e44ea49e5a289fb8d7ac94" title="Return the current position in the reader.">getCur</a>());
<a name="l00157"></a>00157
<a name="l00158"></a>00158 uint32 offsets[5];
<a name="l00159"></a>00159
<a name="l00160"></a>00160 io::WindowedReader offsetWindow(rdr, 20);
<a name="l00161"></a>00161 <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < 5; ++i)
<a name="l00162"></a>00162 {
<a name="l00163"></a>00163 offsets[i] = io::readLENumber(rdr, <span class="keyword">sizeof</span>(uint32));
<a name="l00164"></a>00164 }
<a name="l00165"></a>00165
<a name="l00166"></a>00166 <span class="keywordtype">size_t</span> metadataSize = 0;
<a name="l00167"></a>00167 <span class="keywordflow">if</span> (version <= <span class="stringliteral">"3.00"</span>)
<a name="l00168"></a>00168 {
<a name="l00169"></a>00169 <span class="comment">// All MusicMatch tags up to and including version 3.0 had metadata </span>
<a name="l00170"></a>00170 <span class="comment">// sections exactly 7868 bytes in length.</span>
<a name="l00171"></a>00171 metadataSize = 7868;
<a name="l00172"></a>00172 }
<a name="l00173"></a>00173 <span class="keywordflow">else</span>
<a name="l00174"></a>00174 {
<a name="l00175"></a>00175 <span class="comment">// MusicMatch tags after version 3.0 had three possible lengths for their</span>
<a name="l00176"></a>00176 <span class="comment">// metadata sections. We can determine which it was by searching for</span>
<a name="l00177"></a>00177 <span class="comment">// the version section signature that should precede the metadata section</span>
<a name="l00178"></a>00178 <span class="comment">// by exactly 256 bytes.</span>
<a name="l00179"></a>00179 <span class="keywordtype">size_t</span> possibleSizes[] = { 8132, 8004, 7936 };
<a name="l00180"></a>00180
<a name="l00181"></a>00181 <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < <span class="keyword">sizeof</span>(possibleSizes)/<span class="keyword">sizeof</span>(<span class="keywordtype">size_t</span>); ++i)
<a name="l00182"></a>00182 {
<a name="l00183"></a>00183 dataWindow.setCur(dataWindow.getEnd());
<a name="l00184"></a>00184
<a name="l00185"></a>00185 <span class="comment">// Our offset will be exactly 256 bytes prior to our potential metadata</span>
<a name="l00186"></a>00186 <span class="comment">// section</span>
<a name="l00187"></a>00187 <span class="keywordtype">size_t</span> offset = possibleSizes[i] + 256;
<a name="l00188"></a>00188 <span class="keywordflow">if</span> (dataWindow.getCur() < offset)
<a name="l00189"></a>00189 {
<a name="l00190"></a>00190 <span class="comment">// if our filesize is less than the offset, then it can't possibly</span>
<a name="l00191"></a>00191 <span class="comment">// be the correct offset, so try again.</span>
<a name="l00192"></a>00192 <span class="keywordflow">continue</span>;
<a name="l00193"></a>00193 }
<a name="l00194"></a>00194 dataWindow.setCur(dataWindow.getCur() - offset);
<a name="l00195"></a>00195
<a name="l00196"></a>00196 <span class="comment">// now read in the signature to see if it's a match</span>
<a name="l00197"></a>00197 <span class="keywordflow">if</span> (io::readText(dataWindow, 8) == <span class="stringliteral">"18273645"</span>)
<a name="l00198"></a>00198 {
<a name="l00199"></a>00199 metadataSize = possibleSizes[i];
<a name="l00200"></a>00200 <span class="keywordflow">break</span>;
<a name="l00201"></a>00201 }
<a name="l00202"></a>00202 }
<a name="l00203"></a>00203 }
<a name="l00204"></a>00204 <span class="keywordflow">if</span> (0 == metadataSize)
<a name="l00205"></a>00205 {
<a name="l00206"></a>00206 <span class="comment">// if we didn't establish a size for the metadata, then something is</span>
<a name="l00207"></a>00207 <span class="comment">// wrong. probably should log this.</span>
<a name="l00208"></a>00208 ID3D_WARNING( <span class="stringliteral">"mm::parse: bailing, couldn't find meta data signature, end = "</span> << end );
<a name="l00209"></a>00209 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00210"></a>00210 }
<a name="l00211"></a>00211
<a name="l00212"></a>00212 <span class="comment">// parse the offset pointers to determine the actual sizes of all the </span>
<a name="l00213"></a>00213 <span class="comment">// sections</span>
<a name="l00214"></a>00214 <span class="keywordtype">size_t</span> sectionSizes[5];
<a name="l00215"></a>00215 <span class="keywordtype">size_t</span> tagSize = metadataSize;
<a name="l00216"></a>00216
<a name="l00217"></a>00217 <span class="comment">// we already know the size of the last section</span>
<a name="l00218"></a>00218 sectionSizes[4] = metadataSize;
<a name="l00219"></a>00219
<a name="l00220"></a>00220 <span class="keywordtype">size_t</span> lastOffset = 0;
<a name="l00221"></a>00221 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < 5; i++)
<a name="l00222"></a>00222 {
<a name="l00223"></a>00223 <span class="keywordtype">size_t</span> thisOffset = offsets[i];
<a name="l00224"></a>00224 <span class="comment">//ASSERT(thisOffset > lastOffset);</span>
<a name="l00225"></a>00225 <span class="keywordflow">if</span> (i > 0)
<a name="l00226"></a>00226 {
<a name="l00227"></a>00227 <span class="keywordtype">size_t</span> sectionSize = thisOffset - lastOffset;
<a name="l00228"></a>00228 sectionSizes[i-1] = sectionSize;
<a name="l00229"></a>00229 tagSize += sectionSize;
<a name="l00230"></a>00230 }
<a name="l00231"></a>00231 lastOffset = thisOffset;
<a name="l00232"></a>00232 }
<a name="l00233"></a>00233
<a name="l00234"></a>00234 <span class="comment">// now check to see that our tag size is reasonable</span>
<a name="l00235"></a>00235 <span class="keywordflow">if</span> (dataWindow.getEnd() < tagSize)
<a name="l00236"></a>00236 {
<a name="l00237"></a>00237 <span class="comment">// Ack! The tag size doesn't jive with the tag's ending position in</span>
<a name="l00238"></a>00238 <span class="comment">// the file. Bail!</span>
<a name="l00239"></a>00239 ID3D_WARNING( <span class="stringliteral">"mm::parse: bailing, tag size is too big, tag size = "</span> << tagSize << <span class="stringliteral">", end = "</span> << end );
<a name="l00240"></a>00240 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00241"></a>00241 }
<a name="l00242"></a>00242
<a name="l00243"></a>00243 dataWindow.setBeg(dataWindow.getEnd() - tagSize);
<a name="l00244"></a>00244 dataWindow.setCur(dataWindow.getBeg());
<a name="l00245"></a>00245
<a name="l00246"></a>00246 <span class="comment">// Now calculate the adjusted offsets</span>
<a name="l00247"></a>00247 offsets[0] = dataWindow.getBeg();
<a name="l00248"></a>00248 <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < 4; ++i)
<a name="l00249"></a>00249 {
<a name="l00250"></a>00250 offsets[i+1] = offsets[i] + sectionSizes[i];
<a name="l00251"></a>00251 }
<a name="l00252"></a>00252
<a name="l00253"></a>00253 <span class="comment">// now check for a tag header and adjust the tag_beg pointer appropriately</span>
<a name="l00254"></a>00254 <span class="keywordflow">if</span> (dataWindow.getBeg() >= 256)
<a name="l00255"></a>00255 {
<a name="l00256"></a>00256 rdr.<a class="code" href="class_i_d3___reader.html#a1630f369cc7aa65a2279542715e9f483" title="Set the value of the current position for reading.">setCur</a>(dataWindow.getBeg() - 256);
<a name="l00257"></a>00257 <span class="keywordflow">if</span> (io::readText(rdr, 8) == <span class="stringliteral">"18273645"</span>)
<a name="l00258"></a>00258 {
<a name="l00259"></a>00259 et.setExitPos(rdr.<a class="code" href="class_i_d3___reader.html#a232935e138e44ea49e5a289fb8d7ac94" title="Return the current position in the reader.">getCur</a>() - 8);
<a name="l00260"></a>00260 }
<a name="l00261"></a>00261 <span class="keywordflow">else</span>
<a name="l00262"></a>00262 {
<a name="l00263"></a>00263 et.setExitPos(dataWindow.getBeg());
<a name="l00264"></a>00264 }
<a name="l00265"></a>00265 dataWindow.setCur(dataWindow.getBeg());
<a name="l00266"></a>00266 }
<a name="l00267"></a>00267
<a name="l00268"></a>00268 <span class="comment">// Now parse the various sections...</span>
<a name="l00269"></a>00269
<a name="l00270"></a>00270 <span class="comment">// Parse the image extension at offset 0</span>
<a name="l00271"></a>00271 dataWindow.setCur(offsets[0]);
<a name="l00272"></a>00272 String imgExt = io::readTrailingSpaces(dataWindow, 4);
<a name="l00273"></a>00273
<a name="l00274"></a>00274 <span class="comment">// Parse the image binary at offset 1</span>
<a name="l00275"></a>00275 dataWindow.setCur(offsets[1]);
<a name="l00276"></a>00276 uint32 imgSize = io::readLENumber(dataWindow, 4);
<a name="l00277"></a>00277 <span class="keywordflow">if</span> (imgSize == 0)
<a name="l00278"></a>00278 {
<a name="l00279"></a>00279 <span class="comment">// no image binary. don't do anything.</span>
<a name="l00280"></a>00280 }
<a name="l00281"></a>00281 <span class="keywordflow">else</span>
<a name="l00282"></a>00282 {
<a name="l00283"></a>00283 io::WindowedReader imgWindow(dataWindow, imgSize);
<a name="l00284"></a>00284 <span class="keywordflow">if</span> (imgWindow.getEnd() < imgWindow.getBeg() + imgSize)
<a name="l00285"></a>00285 {
<a name="l00286"></a>00286 <span class="comment">// Ack! The image size given extends beyond the next offset! This is </span>
<a name="l00287"></a>00287 <span class="comment">// not good... log?</span>
<a name="l00288"></a>00288 }
<a name="l00289"></a>00289 <span class="keywordflow">else</span>
<a name="l00290"></a>00290 {
<a name="l00291"></a>00291 BString imgData = io::readAllBinary(imgWindow);
<a name="l00292"></a>00292 <a class="code" href="class_i_d3___frame.html" title="The representative class of an id3v2 frame.">ID3_Frame</a>* frame = <span class="keyword">new</span> <a class="code" href="class_i_d3___frame.html" title="The representative class of an id3v2 frame.">ID3_Frame</a>(<a class="code" href="globals_8h.html#a78f454bf66f16b1e1c9f8e37bda9ab8aacdd599f7b0f4a6081cf714a7232acf71" title="Attached picture.">ID3FID_PICTURE</a>);
<a name="l00293"></a>00293 <span class="keywordflow">if</span> (frame)
<a name="l00294"></a>00294 {
<a name="l00295"></a>00295 String mimetype(<span class="stringliteral">"image/"</span>);
<a name="l00296"></a>00296 mimetype += imgExt;
<a name="l00297"></a>00297 frame-><a class="code" href="class_i_d3___frame.html#a6491b36aee70776ed656896daa42ef80">GetField</a>(<a class="code" href="globals_8h.html#a23cab982426a968437cd731900cfeb2ca0500bcc349631be7bf2c67e1a0033169" title="Mimetype field.">ID3FN_MIMETYPE</a>)-><a class="code" href="class_i_d3___field.html#a16387cf6c54df5432a0c048d6a931f03">Set</a>(mimetype.c_str());
<a name="l00298"></a>00298 frame-><a class="code" href="class_i_d3___frame.html#a6491b36aee70776ed656896daa42ef80">GetField</a>(<a class="code" href="globals_8h.html#a23cab982426a968437cd731900cfeb2ca6a302fcdbf395861bc6d0f9878d6cffc" title="Image format field.">ID3FN_IMAGEFORMAT</a>)-><a class="code" href="class_i_d3___field.html#a16387cf6c54df5432a0c048d6a931f03">Set</a>(<span class="stringliteral">""</span>);
<a name="l00299"></a>00299 frame-><a class="code" href="class_i_d3___frame.html#a6491b36aee70776ed656896daa42ef80">GetField</a>(<a class="code" href="globals_8h.html#a23cab982426a968437cd731900cfeb2cacf3efb9534c1200db2f003f5837bb1ad" title="Picture type field.">ID3FN_PICTURETYPE</a>)-><a class="code" href="class_i_d3___field.html#a16387cf6c54df5432a0c048d6a931f03">Set</a>(static_cast<unsigned int>(0));
<a name="l00300"></a>00300 frame-><a class="code" href="class_i_d3___frame.html#a6491b36aee70776ed656896daa42ef80">GetField</a>(<a class="code" href="globals_8h.html#a23cab982426a968437cd731900cfeb2ca6898b894ce725eb89b42dc6f4f9117e5" title="Description field.">ID3FN_DESCRIPTION</a>)-><a class="code" href="class_i_d3___field.html#a16387cf6c54df5432a0c048d6a931f03">Set</a>(<span class="stringliteral">""</span>);
<a name="l00301"></a>00301 frame-><a class="code" href="class_i_d3___frame.html#a6491b36aee70776ed656896daa42ef80">GetField</a>(<a class="code" href="globals_8h.html#a23cab982426a968437cd731900cfeb2cabd5e1e87686d7a1fc9ba291023e9ccc0" title="Data field.">ID3FN_DATA</a>)-><a class="code" href="class_i_d3___field.html#a16387cf6c54df5432a0c048d6a931f03">Set</a>(reinterpret_cast<const uchar*>(imgData.data()), imgData.size());
<a name="l00302"></a>00302 tag.<a class="code" href="class_i_d3___tag_impl.html#adaf0656b5f9424cbefb336e48c711398">AttachFrame</a>(frame);
<a name="l00303"></a>00303 }
<a name="l00304"></a>00304 }
<a name="l00305"></a>00305 }
<a name="l00306"></a>00306
<a name="l00307"></a>00307 <span class="comment">//file.seekg(offsets[2]);</span>
<a name="l00308"></a>00308 <span class="comment">//file.seekg(offsets[3]);</span>
<a name="l00309"></a>00309 dataWindow.setCur(offsets[4]);
<a name="l00310"></a>00310
<a name="l00311"></a>00311 tag.<a class="code" href="class_i_d3___tag_impl.html#adaf0656b5f9424cbefb336e48c711398">AttachFrame</a>(readTextFrame(dataWindow, <a class="code" href="globals_8h.html#a78f454bf66f16b1e1c9f8e37bda9ab8aaf7e8a066a7c9debd6dfd742cfb5a080b" title="Title/songname/content description.">ID3FID_TITLE</a>));
<a name="l00312"></a>00312 tag.<a class="code" href="class_i_d3___tag_impl.html#adaf0656b5f9424cbefb336e48c711398">AttachFrame</a>(readTextFrame(dataWindow, <a class="code" href="globals_8h.html#a78f454bf66f16b1e1c9f8e37bda9ab8aa8b1cc72205175363486074e6e56b072a" title="Album/Movie/Show title.">ID3FID_ALBUM</a>));
<a name="l00313"></a>00313 tag.<a class="code" href="class_i_d3___tag_impl.html#adaf0656b5f9424cbefb336e48c711398">AttachFrame</a>(readTextFrame(dataWindow, <a class="code" href="globals_8h.html#a78f454bf66f16b1e1c9f8e37bda9ab8aa01ed8e673c6a4b5b55cca106cd35a961" title="Lead performer(s)/Soloist(s)">ID3FID_LEADARTIST</a>));
<a name="l00314"></a>00314 tag.<a class="code" href="class_i_d3___tag_impl.html#adaf0656b5f9424cbefb336e48c711398">AttachFrame</a>(readTextFrame(dataWindow, <a class="code" href="globals_8h.html#a78f454bf66f16b1e1c9f8e37bda9ab8aa040eba7064ed2c884233113486dbdd54" title="Content type.">ID3FID_CONTENTTYPE</a>));
<a name="l00315"></a>00315 tag.<a class="code" href="class_i_d3___tag_impl.html#adaf0656b5f9424cbefb336e48c711398">AttachFrame</a>(readTextFrame(dataWindow, <a class="code" href="globals_8h.html#a78f454bf66f16b1e1c9f8e37bda9ab8aa8df694633e118d601850e497b132de0f" title="Comments.">ID3FID_COMMENT</a>, <span class="stringliteral">"MusicMatch_Tempo"</span>));
<a name="l00316"></a>00316 tag.<a class="code" href="class_i_d3___tag_impl.html#adaf0656b5f9424cbefb336e48c711398">AttachFrame</a>(readTextFrame(dataWindow, <a class="code" href="globals_8h.html#a78f454bf66f16b1e1c9f8e37bda9ab8aa8df694633e118d601850e497b132de0f" title="Comments.">ID3FID_COMMENT</a>, <span class="stringliteral">"MusicMatch_Mood"</span>));
<a name="l00317"></a>00317 tag.<a class="code" href="class_i_d3___tag_impl.html#adaf0656b5f9424cbefb336e48c711398">AttachFrame</a>(readTextFrame(dataWindow, <a class="code" href="globals_8h.html#a78f454bf66f16b1e1c9f8e37bda9ab8aa8df694633e118d601850e497b132de0f" title="Comments.">ID3FID_COMMENT</a>, <span class="stringliteral">"MusicMatch_Situation"</span>));
<a name="l00318"></a>00318 tag.<a class="code" href="class_i_d3___tag_impl.html#adaf0656b5f9424cbefb336e48c711398">AttachFrame</a>(readTextFrame(dataWindow, <a class="code" href="globals_8h.html#a78f454bf66f16b1e1c9f8e37bda9ab8aa8df694633e118d601850e497b132de0f" title="Comments.">ID3FID_COMMENT</a>, <span class="stringliteral">"MusicMatch_Preference"</span>));
<a name="l00319"></a>00319 tag.<a class="code" href="class_i_d3___tag_impl.html#adaf0656b5f9424cbefb336e48c711398">AttachFrame</a>(readTextFrame(dataWindow, <a class="code" href="globals_8h.html#a78f454bf66f16b1e1c9f8e37bda9ab8aaa2047f42426480aac38e6e10d49918aa" title="Length.">ID3FID_SONGLEN</a>));
<a name="l00320"></a>00320
<a name="l00321"></a>00321 <span class="comment">// The next 12 bytes can be ignored. The first 8 represent the </span>
<a name="l00322"></a>00322 <span class="comment">// creation date as a 64 bit floating point number. The last 4 are</span>
<a name="l00323"></a>00323 <span class="comment">// for a play counter.</span>
<a name="l00324"></a>00324 dataWindow.skipChars(12);
<a name="l00325"></a>00325
<a name="l00326"></a>00326 tag.<a class="code" href="class_i_d3___tag_impl.html#adaf0656b5f9424cbefb336e48c711398">AttachFrame</a>(readTextFrame(dataWindow, <a class="code" href="globals_8h.html#a78f454bf66f16b1e1c9f8e37bda9ab8aa8df694633e118d601850e497b132de0f" title="Comments.">ID3FID_COMMENT</a>, <span class="stringliteral">"MusicMatch_Path"</span>));
<a name="l00327"></a>00327 tag.<a class="code" href="class_i_d3___tag_impl.html#adaf0656b5f9424cbefb336e48c711398">AttachFrame</a>(readTextFrame(dataWindow, <a class="code" href="globals_8h.html#a78f454bf66f16b1e1c9f8e37bda9ab8aa8df694633e118d601850e497b132de0f" title="Comments.">ID3FID_COMMENT</a>, <span class="stringliteral">"MusicMatch_Serial"</span>));
<a name="l00328"></a>00328
<a name="l00329"></a>00329 <span class="comment">// 2 bytes for track</span>
<a name="l00330"></a>00330 uint32 trkNum = io::readLENumber(dataWindow, 2);
<a name="l00331"></a>00331 <span class="keywordflow">if</span> (trkNum > 0)
<a name="l00332"></a>00332 {
<a name="l00333"></a>00333 String trkStr = toString(trkNum);
<a name="l00334"></a>00334 <a class="code" href="class_i_d3___frame.html" title="The representative class of an id3v2 frame.">ID3_Frame</a>* frame = <span class="keyword">new</span> <a class="code" href="class_i_d3___frame.html" title="The representative class of an id3v2 frame.">ID3_Frame</a>(<a class="code" href="globals_8h.html#a78f454bf66f16b1e1c9f8e37bda9ab8aace6669093c3bc849a75098d59f504759" title="Track number/Position in set.">ID3FID_TRACKNUM</a>);
<a name="l00335"></a>00335 <span class="keywordflow">if</span> (frame)
<a name="l00336"></a>00336 {
<a name="l00337"></a>00337 frame-><a class="code" href="class_i_d3___frame.html#a6491b36aee70776ed656896daa42ef80">GetField</a>(<a class="code" href="globals_8h.html#a23cab982426a968437cd731900cfeb2cab4a3b9cafedc2cede90380c79edca044" title="Text field.">ID3FN_TEXT</a>)-><a class="code" href="class_i_d3___field.html#a16387cf6c54df5432a0c048d6a931f03">Set</a>(trkStr.c_str());
<a name="l00338"></a>00338 tag.<a class="code" href="class_i_d3___tag_impl.html#adaf0656b5f9424cbefb336e48c711398">AttachFrame</a>(frame);
<a name="l00339"></a>00339 }
<a name="l00340"></a>00340 }
<a name="l00341"></a>00341
<a name="l00342"></a>00342 tag.<a class="code" href="class_i_d3___tag_impl.html#adaf0656b5f9424cbefb336e48c711398">AttachFrame</a>(readTextFrame(dataWindow, <a class="code" href="globals_8h.html#a78f454bf66f16b1e1c9f8e37bda9ab8aa8df694633e118d601850e497b132de0f" title="Comments.">ID3FID_COMMENT</a>, <span class="stringliteral">"MusicMatch_Notes"</span>));
<a name="l00343"></a>00343 tag.<a class="code" href="class_i_d3___tag_impl.html#adaf0656b5f9424cbefb336e48c711398">AttachFrame</a>(readTextFrame(dataWindow, <a class="code" href="globals_8h.html#a78f454bf66f16b1e1c9f8e37bda9ab8aa8df694633e118d601850e497b132de0f" title="Comments.">ID3FID_COMMENT</a>, <span class="stringliteral">"MusicMatch_Bio"</span>));
<a name="l00344"></a>00344 tag.<a class="code" href="class_i_d3___tag_impl.html#adaf0656b5f9424cbefb336e48c711398">AttachFrame</a>(readTextFrame(dataWindow, <a class="code" href="globals_8h.html#a78f454bf66f16b1e1c9f8e37bda9ab8aada871da61c6d5e3aac17c3a0c833baea" title="Unsynchronized lyric/text transcription.">ID3FID_UNSYNCEDLYRICS</a>));
<a name="l00345"></a>00345 tag.<a class="code" href="class_i_d3___tag_impl.html#adaf0656b5f9424cbefb336e48c711398">AttachFrame</a>(readTextFrame(dataWindow, <a class="code" href="globals_8h.html#a78f454bf66f16b1e1c9f8e37bda9ab8aa462644eb93ef4e225ca44998ac09b2c7" title="Official artist/performer webpage.">ID3FID_WWWARTIST</a>));
<a name="l00346"></a>00346 tag.<a class="code" href="class_i_d3___tag_impl.html#adaf0656b5f9424cbefb336e48c711398">AttachFrame</a>(readTextFrame(dataWindow, <a class="code" href="globals_8h.html#a78f454bf66f16b1e1c9f8e37bda9ab8aabd590e94ed2a4917457e097be62a955e" title="Commercial information.">ID3FID_WWWCOMMERCIALINFO</a>));
<a name="l00347"></a>00347 tag.<a class="code" href="class_i_d3___tag_impl.html#adaf0656b5f9424cbefb336e48c711398">AttachFrame</a>(readTextFrame(dataWindow, <a class="code" href="globals_8h.html#a78f454bf66f16b1e1c9f8e37bda9ab8aa8df694633e118d601850e497b132de0f" title="Comments.">ID3FID_COMMENT</a>, <span class="stringliteral">"MusicMatch_ArtistEmail"</span>));
<a name="l00348"></a>00348
<a name="l00349"></a>00349 <span class="comment">// email?</span>
<a name="l00350"></a>00350
<a name="l00351"></a>00351 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00352"></a>00352 }
<a name="l00353"></a>00353
</pre></div></div>
</div>
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