<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://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 1.8.15"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>EXIF library (libexif) API: libexif/exif-loader.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"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(document).ready(initResizable); /* @license-end */</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">0.6.22</span> </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.15 --> <script type="text/javascript" src="menudata.js"></script> <script type="text/javascript" src="menu.js"></script> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(function() { initMenu('',false,false,'search.php','Search'); }); /* @license-end */</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"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(document).ready(function(){initNavTree('exif-loader_8h_source.html','');}); /* @license-end */ </script> <div id="doc-content"> <div class="header"> <div class="headertitle"> <div class="title">exif-loader.h</div> </div> </div><!--header--> <div class="contents"> <a href="exif-loader_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) 2003 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_LOADER_H__</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#define __EXIF_LOADER_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">#include <<a class="code" href="exif-data_8h.html">libexif/exif-data.h</a>></span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</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="l00028"></a><span class="lineno"> 28</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="l00029"></a><span class="lineno"> 29</span> </div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#ifdef __cplusplus</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#endif </span><span class="comment">/* __cplusplus */</span><span class="preprocessor"></span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div><div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="exif-loader_8h.html#a2b96cbffaf0f92340a960f887026eced"> 35</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span>_ExifLoader <a class="code" href="exif-loader_8h.html#a2b96cbffaf0f92340a960f887026eced">ExifLoader</a>;</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <a class="code" href="exif-loader_8h.html#a2b96cbffaf0f92340a960f887026eced">ExifLoader</a> *<a class="code" href="exif-loader_8h.html#a2d4278edbd89b5af3e5a4fe29b5e085c">exif_loader_new</a> (<span class="keywordtype">void</span>);</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <a class="code" href="exif-loader_8h.html#a2b96cbffaf0f92340a960f887026eced">ExifLoader</a> *<a class="code" href="exif-loader_8h.html#a95c8505132b2465c1078b0842285bfc7">exif_loader_new_mem</a> (<a class="code" href="exif-mem_8h.html#aab8aacbc0ed6f11a1f022b7b1bf4750e">ExifMem</a> *mem);</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="keywordtype">void</span> <a class="code" href="exif-loader_8h.html#ac5e7a899a7499b56772b671add54fcde">exif_loader_ref</a> (<a class="code" href="exif-loader_8h.html#a2b96cbffaf0f92340a960f887026eced">ExifLoader</a> *loader);</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="keywordtype">void</span> <a class="code" href="exif-loader_8h.html#a7f4e3dfa0df969ac8c232327840ca105">exif_loader_unref</a> (<a class="code" href="exif-loader_8h.html#a2b96cbffaf0f92340a960f887026eced">ExifLoader</a> *loader);</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="keywordtype">void</span> <a class="code" href="exif-loader_8h.html#a613e86cc4f12d488fbd23fe97a0d30c5">exif_loader_write_file</a> (<a class="code" href="exif-loader_8h.html#a2b96cbffaf0f92340a960f887026eced">ExifLoader</a> *loader, <span class="keyword">const</span> <span class="keywordtype">char</span> *fname);</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="exif-loader_8h.html#ad1b65ac6288f5f28aa2b4b3d2bf3f56f">exif_loader_write</a> (<a class="code" href="exif-loader_8h.html#a2b96cbffaf0f92340a960f887026eced">ExifLoader</a> *loader, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buf, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sz);</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="keywordtype">void</span> <a class="code" href="exif-loader_8h.html#a080d8ebb5006c1306a3a798ff60253a5">exif_loader_reset</a> (<a class="code" href="exif-loader_8h.html#a2b96cbffaf0f92340a960f887026eced">ExifLoader</a> *loader);</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <a class="code" href="struct__ExifData.html">ExifData</a> *<a class="code" href="exif-loader_8h.html#abe54111cdaf5b0559a20e1e76c31a86c">exif_loader_get_data</a> (<a class="code" href="exif-loader_8h.html#a2b96cbffaf0f92340a960f887026eced">ExifLoader</a> *loader);</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="keywordtype">void</span> <a class="code" href="exif-loader_8h.html#acb140c6f8bce84eb228592dcf202025d">exif_loader_get_buf</a> (<a class="code" href="exif-loader_8h.html#a2b96cbffaf0f92340a960f887026eced">ExifLoader</a> *loader, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> **buf,</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *buf_size);</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="keywordtype">void</span> <a class="code" href="exif-loader_8h.html#a0779beeb15d0c56ae7442f4740f1baf7">exif_loader_log</a> (<a class="code" href="exif-loader_8h.html#a2b96cbffaf0f92340a960f887026eced">ExifLoader</a> *loader, <a class="code" href="exif-log_8h.html#a6b225115984bb2016282923cb487f16b">ExifLog</a> *log);</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="preprocessor">#ifdef __cplusplus</span></div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> }</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="preprocessor">#endif </span><span class="comment">/* __cplusplus */</span><span class="preprocessor"></span></div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="preprocessor">#endif </span><span class="comment">/* __EXIF_LOADER_H__ */</span><span class="preprocessor"></span></div><div class="ttc" id="exif-loader_8h_html_acb140c6f8bce84eb228592dcf202025d"><div class="ttname"><a href="exif-loader_8h.html#acb140c6f8bce84eb228592dcf202025d">exif_loader_get_buf</a></div><div class="ttdeci">void exif_loader_get_buf(ExifLoader *loader, const unsigned char **buf, unsigned int *buf_size)</div><div class="ttdoc">Return the raw data read by the loader.</div><div class="ttdef"><b>Definition:</b> exif-loader.c:407</div></div> <div class="ttc" id="exif-loader_8h_html_abe54111cdaf5b0559a20e1e76c31a86c"><div class="ttname"><a href="exif-loader_8h.html#abe54111cdaf5b0559a20e1e76c31a86c">exif_loader_get_data</a></div><div class="ttdeci">ExifData * exif_loader_get_data(ExifLoader *loader)</div><div class="ttdoc">Create an ExifData from the data in the loader.</div><div class="ttdef"><b>Definition:</b> exif-loader.c:391</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-loader_8h_html_a2b96cbffaf0f92340a960f887026eced"><div class="ttname"><a href="exif-loader_8h.html#a2b96cbffaf0f92340a960f887026eced">ExifLoader</a></div><div class="ttdeci">struct _ExifLoader ExifLoader</div><div class="ttdoc">Data used by the loader interface.</div><div class="ttdef"><b>Definition:</b> exif-loader.h:35</div></div> <div class="ttc" id="exif-loader_8h_html_a080d8ebb5006c1306a3a798ff60253a5"><div class="ttname"><a href="exif-loader_8h.html#a080d8ebb5006c1306a3a798ff60253a5">exif_loader_reset</a></div><div class="ttdeci">void exif_loader_reset(ExifLoader *loader)</div><div class="ttdoc">Free any data previously loaded and reset the ExifLoader to its newly-initialized state.</div><div class="ttdef"><b>Definition:</b> exif-loader.c:378</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-loader_8h_html_ac5e7a899a7499b56772b671add54fcde"><div class="ttname"><a href="exif-loader_8h.html#ac5e7a899a7499b56772b671add54fcde">exif_loader_ref</a></div><div class="ttdeci">void exif_loader_ref(ExifLoader *loader)</div><div class="ttdoc">Increase the refcount of the ExifLoader.</div><div class="ttdef"><b>Definition:</b> exif-loader.c:347</div></div> <div class="ttc" id="exif-loader_8h_html_a2d4278edbd89b5af3e5a4fe29b5e085c"><div class="ttname"><a href="exif-loader_8h.html#a2d4278edbd89b5af3e5a4fe29b5e085c">exif_loader_new</a></div><div class="ttdeci">ExifLoader * exif_loader_new(void)</div><div class="ttdoc">Allocate a new ExifLoader.</div><div class="ttdef"><b>Definition:</b> exif-loader.c:317</div></div> <div class="ttc" id="exif-loader_8h_html_a613e86cc4f12d488fbd23fe97a0d30c5"><div class="ttname"><a href="exif-loader_8h.html#a613e86cc4f12d488fbd23fe97a0d30c5">exif_loader_write_file</a></div><div class="ttdeci">void exif_loader_write_file(ExifLoader *loader, const char *fname)</div><div class="ttdoc">Load a file into the given ExifLoader from the filesystem.</div><div class="ttdef"><b>Definition:</b> exif-loader.c:107</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-loader_8h_html_a7f4e3dfa0df969ac8c232327840ca105"><div class="ttname"><a href="exif-loader_8h.html#a7f4e3dfa0df969ac8c232327840ca105">exif_loader_unref</a></div><div class="ttdeci">void exif_loader_unref(ExifLoader *loader)</div><div class="ttdoc">Decrease the refcount of the ExifLoader.</div><div class="ttdef"><b>Definition:</b> exif-loader.c:369</div></div> <div class="ttc" id="exif-loader_8h_html_a0779beeb15d0c56ae7442f4740f1baf7"><div class="ttname"><a href="exif-loader_8h.html#a0779beeb15d0c56ae7442f4740f1baf7">exif_loader_log</a></div><div class="ttdeci">void exif_loader_log(ExifLoader *loader, ExifLog *log)</div><div class="ttdoc">Set the log message object used by this ExifLoader.</div><div class="ttdef"><b>Definition:</b> exif-loader.c:430</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="exif-loader_8h_html_ad1b65ac6288f5f28aa2b4b3d2bf3f56f"><div class="ttname"><a href="exif-loader_8h.html#ad1b65ac6288f5f28aa2b4b3d2bf3f56f">exif_loader_write</a></div><div class="ttdeci">unsigned char exif_loader_write(ExifLoader *loader, unsigned char *buf, unsigned int sz)</div><div class="ttdoc">Load a buffer into the ExifLoader from a memory buffer.</div><div class="ttdef"><b>Definition:</b> exif-loader.c:153</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-loader_8h_html_a95c8505132b2465c1078b0842285bfc7"><div class="ttname"><a href="exif-loader_8h.html#a95c8505132b2465c1078b0842285bfc7">exif_loader_new_mem</a></div><div class="ttdeci">ExifLoader * exif_loader_new_mem(ExifMem *mem)</div><div class="ttdoc">Allocate a new ExifLoader using the specified memory allocator.</div><div class="ttdef"><b>Definition:</b> exif-loader.c:328</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" 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