<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.13"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>EXIF library (libexif) API: libexif/exif-content.h Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="navtree.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="resize.js"></script> <script type="text/javascript" src="navtreedata.js"></script> <script type="text/javascript" src="navtree.js"></script> <script type="text/javascript"> $(document).ready(initResizable); </script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td id="projectalign" style="padding-left: 0.5em;"> <div id="projectname">EXIF library (libexif) API  <span id="projectnumber">0.6.21</span> </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.13 --> <script type="text/javascript" src="menudata.js"></script> <script type="text/javascript" src="menu.js"></script> <script type="text/javascript"> $(function() { initMenu('',false,false,'search.php','Search'); }); </script> <div id="main-nav"></div> </div><!-- top --> <div id="side-nav" class="ui-resizable side-nav-resizable"> <div id="nav-tree"> <div id="nav-tree-contents"> <div id="nav-sync" class="sync"></div> </div> </div> <div id="splitbar" style="-moz-user-select:none;" class="ui-resizable-handle"> </div> </div> <script type="text/javascript"> $(document).ready(function(){initNavTree('exif-content_8h_source.html','');}); </script> <div id="doc-content"> <div class="header"> <div class="headertitle"> <div class="title">exif-content.h</div> </div> </div><!--header--> <div class="contents"> <a href="exif-content_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> </div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">/*</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * Copyright (c) 2001 Lutz Mueller <lutz@users.sourceforge.net></span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> *</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * This library is free software; you can redistribute it and/or</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * modify it under the terms of the GNU Lesser General Public</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * License as published by the Free Software Foundation; either</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * version 2 of the License, or (at your option) any later version.</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> *</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * This library is distributed in the hope that it will be useful, </span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of </span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * Lesser General Public License for more details. </span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> *</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * You should have received a copy of the GNU Lesser General Public</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * License along with this library; if not, write to the</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * Boston, MA 02110-1301 USA.</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> */</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#ifndef __EXIF_CONTENT_H__</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#define __EXIF_CONTENT_H__</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#ifdef __cplusplus</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#endif </span><span class="comment">/* __cplusplus */</span><span class="preprocessor"></span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div><div class="line"><a name="l00031"></a><span class="lineno"><a class="line" href="exif-content_8h.html#ac046cba2f9c5cfabf3ad443303090855"> 31</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="struct__ExifContent.html">_ExifContent</a> <a class="code" href="struct__ExifContent.html">ExifContent</a>;</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">typedef</span> <span class="keyword">struct </span>_ExifContentPrivate ExifContentPrivate;</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include <<a class="code" href="exif-tag_8h.html">libexif/exif-tag.h</a>></span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include <<a class="code" href="exif-entry_8h.html">libexif/exif-entry.h</a>></span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include <<a class="code" href="exif-data_8h.html">libexif/exif-data.h</a>></span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include <<a class="code" href="exif-log_8h.html">libexif/exif-log.h</a>></span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include <<a class="code" href="exif-mem_8h.html">libexif/exif-mem.h</a>></span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div><div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="struct__ExifContent.html"> 40</a></span> <span class="keyword">struct </span><a class="code" href="struct__ExifContent.html">_ExifContent</a></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> {</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <a class="code" href="struct__ExifEntry.html">ExifEntry</a> **entries;</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> count;</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div><div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="struct__ExifContent.html#aae965558ea5c98783c4c2418364aabea"> 46</a></span>  <a class="code" href="struct__ExifData.html">ExifData</a> *<a class="code" href="struct__ExifContent.html#aae965558ea5c98783c4c2418364aabea">parent</a>;</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  ExifContentPrivate *priv;</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> };</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="comment">/* Lifecycle */</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <a class="code" href="struct__ExifContent.html">ExifContent</a> *exif_content_new (<span class="keywordtype">void</span>);</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <a class="code" href="struct__ExifContent.html">ExifContent</a> *exif_content_new_mem (<a class="code" href="exif-mem_8h.html#aab8aacbc0ed6f11a1f022b7b1bf4750e">ExifMem</a> *);</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="keywordtype">void</span> exif_content_ref (<a class="code" href="struct__ExifContent.html">ExifContent</a> *content);</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="keywordtype">void</span> exif_content_unref (<a class="code" href="struct__ExifContent.html">ExifContent</a> *content);</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="keywordtype">void</span> exif_content_free (<a class="code" href="struct__ExifContent.html">ExifContent</a> *content);</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="keywordtype">void</span> <a class="code" href="exif-content_8h.html#a89876388ea2f732f8c8cd2c8ef199908">exif_content_add_entry</a> (<a class="code" href="struct__ExifContent.html">ExifContent</a> *c, <a class="code" href="struct__ExifEntry.html">ExifEntry</a> *entry);</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="keywordtype">void</span> <a class="code" href="exif-content_8h.html#a04f76832f82ea29ce05cd7c4e51932b1">exif_content_remove_entry</a> (<a class="code" href="struct__ExifContent.html">ExifContent</a> *c, <a class="code" href="struct__ExifEntry.html">ExifEntry</a> *e);</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <a class="code" href="struct__ExifEntry.html">ExifEntry</a> *<a class="code" href="exif-content_8h.html#ac72bb2dacf0da27156c2c4dce08eef5d">exif_content_get_entry</a> (<a class="code" href="struct__ExifContent.html">ExifContent</a> *content, <a class="code" href="exif-tag_8h.html#a1a0ded93d47585f6889eb546915d0f41">ExifTag</a> tag);</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="keywordtype">void</span> <a class="code" href="exif-content_8h.html#a16c54e0f88067820efd37cd3088a9c70">exif_content_fix</a> (<a class="code" href="struct__ExifContent.html">ExifContent</a> *c);</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="keyword">typedef</span> void (* ExifContentForeachEntryFunc) (<a class="code" href="struct__ExifEntry.html">ExifEntry</a> *, <span class="keywordtype">void</span> *user_data);</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="keywordtype">void</span> <a class="code" href="exif-content_8h.html#addc77910c821d9ee9b3ce0890caad741">exif_content_foreach_entry</a> (<a class="code" href="struct__ExifContent.html">ExifContent</a> *content,</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  ExifContentForeachEntryFunc func,</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordtype">void</span> *user_data);</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> ExifIfd <a class="code" href="exif-content_8h.html#a102270386bc7fdc7296e243967f1a2f4">exif_content_get_ifd</a> (<a class="code" href="struct__ExifContent.html">ExifContent</a> *c);</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div><div class="line"><a name="l00122"></a><span class="lineno"><a class="line" href="exif-content_8h.html#a21e72202f0e6131ad6977d8025f72c2f"> 122</a></span> <span class="preprocessor">#define exif_content_get_value(c,t,v,m) \</span></div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="preprocessor"> (exif_content_get_entry (c,t) ? \</span></div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="preprocessor"> exif_entry_get_value (exif_content_get_entry (c,t),v,m) : NULL)</span></div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="keywordtype">void</span> <a class="code" href="exif-content_8h.html#a941c3522a39280f44329eaf364645620">exif_content_dump</a> (<a class="code" href="struct__ExifContent.html">ExifContent</a> *content, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> indent);</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span> </div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="keywordtype">void</span> <a class="code" href="exif-content_8h.html#acdc250f9237c430642c2c71ba022070a">exif_content_log</a> (<a class="code" href="struct__ExifContent.html">ExifContent</a> *content, <a class="code" href="exif-log_8h.html#a6b225115984bb2016282923cb487f16b">ExifLog</a> *log);</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="preprocessor">#ifdef __cplusplus</span></div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> }</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="preprocessor">#endif </span><span class="comment">/* __cplusplus */</span><span class="preprocessor"></span></div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span> </div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="preprocessor">#endif </span><span class="comment">/* __EXIF_CONTENT_H__ */</span><span class="preprocessor"></span></div><div class="ttc" id="exif-content_8h_html_addc77910c821d9ee9b3ce0890caad741"><div class="ttname"><a href="exif-content_8h.html#addc77910c821d9ee9b3ce0890caad741">exif_content_foreach_entry</a></div><div class="ttdeci">void exif_content_foreach_entry(ExifContent *content, ExifContentForeachEntryFunc func, void *user_data)</div><div class="ttdoc">Executes function on each EXIF tag in this IFD in turn. </div><div class="ttdef"><b>Definition:</b> exif-content.c:210</div></div> <div class="ttc" id="struct__ExifContent_html"><div class="ttname"><a href="struct__ExifContent.html">_ExifContent</a></div><div class="ttdef"><b>Definition:</b> exif-content.h:40</div></div> <div class="ttc" id="exif-content_8h_html_a102270386bc7fdc7296e243967f1a2f4"><div class="ttname"><a href="exif-content_8h.html#a102270386bc7fdc7296e243967f1a2f4">exif_content_get_ifd</a></div><div class="ttdeci">ExifIfd exif_content_get_ifd(ExifContent *c)</div><div class="ttdoc">Return the IFD number in which the given ExifContent is found. </div><div class="ttdef"><b>Definition:</b> exif-content.c:234</div></div> <div class="ttc" id="exif-tag_8h_html_a1a0ded93d47585f6889eb546915d0f41"><div class="ttname"><a href="exif-tag_8h.html#a1a0ded93d47585f6889eb546915d0f41">ExifTag</a></div><div class="ttdeci">ExifTag</div><div class="ttdoc">EXIF tags. </div><div class="ttdef"><b>Definition:</b> exif-tag.h:34</div></div> <div class="ttc" id="exif-content_8h_html_ac72bb2dacf0da27156c2c4dce08eef5d"><div class="ttname"><a href="exif-content_8h.html#ac72bb2dacf0da27156c2c4dce08eef5d">exif_content_get_entry</a></div><div class="ttdeci">ExifEntry * exif_content_get_entry(ExifContent *content, ExifTag tag)</div><div class="ttdoc">Return the ExifEntry in this IFD corresponding to the given tag. </div><div class="ttdef"><b>Definition:</b> exif-content.c:196</div></div> <div class="ttc" id="struct__ExifEntry_html"><div class="ttname"><a href="struct__ExifEntry.html">_ExifEntry</a></div><div class="ttdoc">Data found in one EXIF tag. </div><div class="ttdef"><b>Definition:</b> exif-entry.h:43</div></div> <div class="ttc" id="exif-mem_8h_html_aab8aacbc0ed6f11a1f022b7b1bf4750e"><div class="ttname"><a href="exif-mem_8h.html#aab8aacbc0ed6f11a1f022b7b1bf4750e">ExifMem</a></div><div class="ttdeci">struct _ExifMem ExifMem</div><div class="ttdoc">ExifMem define a memory allocator. </div><div class="ttdef"><b>Definition:</b> exif-mem.h:57</div></div> <div class="ttc" id="exif-content_8h_html_a941c3522a39280f44329eaf364645620"><div class="ttname"><a href="exif-content_8h.html#a941c3522a39280f44329eaf364645620">exif_content_dump</a></div><div class="ttdeci">void exif_content_dump(ExifContent *content, unsigned int indent)</div><div class="ttdoc">Dump contents of the IFD to stdout. </div><div class="ttdef"><b>Definition:</b> exif-content.c:114</div></div> <div class="ttc" id="exif-log_8h_html"><div class="ttname"><a href="exif-log_8h.html">exif-log.h</a></div><div class="ttdoc">Log message infrastructure. </div></div> <div class="ttc" id="exif-content_8h_html_a89876388ea2f732f8c8cd2c8ef199908"><div class="ttname"><a href="exif-content_8h.html#a89876388ea2f732f8c8cd2c8ef199908">exif_content_add_entry</a></div><div class="ttdeci">void exif_content_add_entry(ExifContent *c, ExifEntry *entry)</div><div class="ttdoc">Add an EXIF tag to an IFD. </div><div class="ttdef"><b>Definition:</b> exif-content.c:133</div></div> <div class="ttc" id="exif-tag_8h_html"><div class="ttname"><a href="exif-tag_8h.html">exif-tag.h</a></div><div class="ttdoc">Handling EXIF tags. </div></div> <div class="ttc" id="exif-content_8h_html_a04f76832f82ea29ce05cd7c4e51932b1"><div class="ttname"><a href="exif-content_8h.html#a04f76832f82ea29ce05cd7c4e51932b1">exif_content_remove_entry</a></div><div class="ttdeci">void exif_content_remove_entry(ExifContent *c, ExifEntry *e)</div><div class="ttdoc">Remove an EXIF tag from an IFD. </div><div class="ttdef"><b>Definition:</b> exif-content.c:157</div></div> <div class="ttc" id="exif-content_8h_html_a16c54e0f88067820efd37cd3088a9c70"><div class="ttname"><a href="exif-content_8h.html#a16c54e0f88067820efd37cd3088a9c70">exif_content_fix</a></div><div class="ttdeci">void exif_content_fix(ExifContent *c)</div><div class="ttdoc">Fix the IFD to bring it into specification. </div><div class="ttdef"><b>Definition:</b> exif-content.c:278</div></div> <div class="ttc" id="struct__ExifContent_html_aae965558ea5c98783c4c2418364aabea"><div class="ttname"><a href="struct__ExifContent.html#aae965558ea5c98783c4c2418364aabea">_ExifContent::parent</a></div><div class="ttdeci">ExifData * parent</div><div class="ttdoc">Data containing this content. </div><div class="ttdef"><b>Definition:</b> exif-content.h:46</div></div> <div class="ttc" id="exif-content_8h_html_acdc250f9237c430642c2c71ba022070a"><div class="ttname"><a href="exif-content_8h.html#acdc250f9237c430642c2c71ba022070a">exif_content_log</a></div><div class="ttdeci">void exif_content_log(ExifContent *content, ExifLog *log)</div><div class="ttdoc">Set the log message object for this IFD. </div><div class="ttdef"><b>Definition:</b> exif-content.c:223</div></div> <div class="ttc" id="exif-entry_8h_html"><div class="ttname"><a href="exif-entry_8h.html">exif-entry.h</a></div><div class="ttdoc">Handling EXIF entries. </div></div> <div class="ttc" id="exif-mem_8h_html"><div class="ttname"><a href="exif-mem_8h.html">exif-mem.h</a></div><div class="ttdoc">Define the ExifMem data type and the associated functions. </div></div> <div class="ttc" id="exif-data_8h_html"><div class="ttname"><a href="exif-data_8h.html">exif-data.h</a></div><div class="ttdoc">Defines the ExifData type and the associated functions. </div></div> <div class="ttc" id="struct__ExifData_html"><div class="ttname"><a href="struct__ExifData.html">_ExifData</a></div><div class="ttdoc">Represents the entire EXIF data found in an image. </div><div class="ttdef"><b>Definition:</b> exif-data.h:46</div></div> <div class="ttc" id="exif-log_8h_html_a6b225115984bb2016282923cb487f16b"><div class="ttname"><a href="exif-log_8h.html#a6b225115984bb2016282923cb487f16b">ExifLog</a></div><div class="ttdeci">struct _ExifLog ExifLog</div><div class="ttdoc">State maintained by the logging interface. </div><div class="ttdef"><b>Definition:</b> exif-log.h:34</div></div> </div><!-- fragment --></div><!-- contents --> </div><!-- doc-content --> <!-- start footer part --> <div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> <ul> <li class="navelem"><a class="el" href="dir_04d2bd150f7cc849eeec70b9b0fdccb1.html">libexif</a></li><li class="navelem"><a class="el" href="exif-content_8h.html">exif-content.h</a></li> <li class="footer">Generated by <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.13 </li> </ul> </div> </body> </html>