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<div id="projectname">EXIF library (libexif) API
 <span id="projectnumber">0.6.20</span>
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<p>Handling EXIF MakerNote tags.
<a href="#details">More...</a></p>
<div class="textblock"><code>#include <<a class="el" href="exif-log_8h_source.html">libexif/exif-log.h</a>></code><br/>
</div>
<p><a href="exif-mnote-data_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ad274692c704f570122329ef1ab32ed31"></a><!-- doxytag: member="exif-mnote-data.h::ExifMnoteData" ref="ad274692c704f570122329ef1ab32ed31" args="" -->
typedef struct <a class="el" href="struct__ExifMnoteData.html">_ExifMnoteData</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="exif-mnote-data_8h.html#ad274692c704f570122329ef1ab32ed31">ExifMnoteData</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Data found in the MakerNote tag. <br/></td></tr>
<tr><td colspan="2"><h2><a name="func-members"></a>
Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a6e4fab705cb33adde53dfff211dcd03c"></a><!-- doxytag: member="exif-mnote-data.h::exif_mnote_data_ref" ref="a6e4fab705cb33adde53dfff211dcd03c" args="(ExifMnoteData *)" -->
void </td><td class="memItemRight" valign="bottom"><b>exif_mnote_data_ref</b> (<a class="el" href="exif-mnote-data_8h.html#ad274692c704f570122329ef1ab32ed31">ExifMnoteData</a> *)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ac51e0514ec846838697a460a24bb73fb"></a><!-- doxytag: member="exif-mnote-data.h::exif_mnote_data_unref" ref="ac51e0514ec846838697a460a24bb73fb" args="(ExifMnoteData *)" -->
void </td><td class="memItemRight" valign="bottom"><b>exif_mnote_data_unref</b> (<a class="el" href="exif-mnote-data_8h.html#ad274692c704f570122329ef1ab32ed31">ExifMnoteData</a> *)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="exif-mnote-data_8h.html#aee48077668022309e4ba26da61c48334">exif_mnote_data_load</a> (<a class="el" href="exif-mnote-data_8h.html#ad274692c704f570122329ef1ab32ed31">ExifMnoteData</a> *d, const unsigned char *buf, unsigned int buf_siz)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Load the MakerNote data from a memory buffer. <a href="#aee48077668022309e4ba26da61c48334"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="exif-mnote-data_8h.html#a79ac0114a43394bbf8ff490277762af3">exif_mnote_data_save</a> (<a class="el" href="exif-mnote-data_8h.html#ad274692c704f570122329ef1ab32ed31">ExifMnoteData</a> *d, unsigned char **buf, unsigned int *buf_siz)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Save the raw MakerNote data into a memory buffer. <a href="#a79ac0114a43394bbf8ff490277762af3"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="exif-mnote-data_8h.html#af61fbda7c717e86991b0eccf6976a5f4">exif_mnote_data_count</a> (<a class="el" href="exif-mnote-data_8h.html#ad274692c704f570122329ef1ab32ed31">ExifMnoteData</a> *d)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return the number of tags in the MakerNote. <a href="#af61fbda7c717e86991b0eccf6976a5f4"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="exif-mnote-data_8h.html#a981bab235db2e156216d5cc43f48cac7">exif_mnote_data_get_id</a> (<a class="el" href="exif-mnote-data_8h.html#ad274692c704f570122329ef1ab32ed31">ExifMnoteData</a> *d, unsigned int n)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return the MakerNote tag number for the tag at the specified index within the MakerNote. <a href="#a981bab235db2e156216d5cc43f48cac7"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="exif-mnote-data_8h.html#a921ea2f4583325653d2207c6f1d98742">exif_mnote_data_get_name</a> (<a class="el" href="exif-mnote-data_8h.html#ad274692c704f570122329ef1ab32ed31">ExifMnoteData</a> *d, unsigned int n)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns textual name of the given MakerNote tag. <a href="#a921ea2f4583325653d2207c6f1d98742"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="exif-mnote-data_8h.html#abdf581cdc7ce672b44978ef993f22b78">exif_mnote_data_get_title</a> (<a class="el" href="exif-mnote-data_8h.html#ad274692c704f570122329ef1ab32ed31">ExifMnoteData</a> *d, unsigned int n)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns textual title of the given MakerNote tag. <a href="#abdf581cdc7ce672b44978ef993f22b78"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="exif-mnote-data_8h.html#aa21ac7dd1784e892ec482fe037fc646b">exif_mnote_data_get_description</a> (<a class="el" href="exif-mnote-data_8h.html#ad274692c704f570122329ef1ab32ed31">ExifMnoteData</a> *d, unsigned int n)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns verbose textual description of the given MakerNote tag. <a href="#aa21ac7dd1784e892ec482fe037fc646b"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">char * </td><td class="memItemRight" valign="bottom"><a class="el" href="exif-mnote-data_8h.html#a56299b268a29ea7fa1301952cfe32ca4">exif_mnote_data_get_value</a> (<a class="el" href="exif-mnote-data_8h.html#ad274692c704f570122329ef1ab32ed31">ExifMnoteData</a> *d, unsigned int n, char *val, unsigned int maxlen)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return a textual representation of the value of the MakerNote entry. <a href="#a56299b268a29ea7fa1301952cfe32ca4"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a9a6093f4cd64a11919f254851e54d92c"></a><!-- doxytag: member="exif-mnote-data.h::exif_mnote_data_log" ref="a9a6093f4cd64a11919f254851e54d92c" args="(ExifMnoteData *, ExifLog *)" -->
void </td><td class="memItemRight" valign="bottom"><b>exif_mnote_data_log</b> (<a class="el" href="exif-mnote-data_8h.html#ad274692c704f570122329ef1ab32ed31">ExifMnoteData</a> *, <a class="el" href="exif-log_8h.html#a6b225115984bb2016282923cb487f16b">ExifLog</a> *)</td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>Handling EXIF MakerNote tags. </p>
</div><hr/><h2>Function Documentation</h2>
<a class="anchor" id="af61fbda7c717e86991b0eccf6976a5f4"></a><!-- doxytag: member="exif-mnote-data.h::exif_mnote_data_count" ref="af61fbda7c717e86991b0eccf6976a5f4" args="(ExifMnoteData *d)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">unsigned int <a class="el" href="exif-mnote-data_8h.html#af61fbda7c717e86991b0eccf6976a5f4">exif_mnote_data_count</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="exif-mnote-data_8h.html#ad274692c704f570122329ef1ab32ed31">ExifMnoteData</a> * </td>
<td class="paramname"><em>d</em></td><td>)</td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Return the number of tags in the MakerNote. </p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">d</td><td>MakerNote data </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>number of tags, or 0 if no MakerNote or the type is not supported </dd></dl>
</div>
</div>
<a class="anchor" id="aa21ac7dd1784e892ec482fe037fc646b"></a><!-- doxytag: member="exif-mnote-data.h::exif_mnote_data_get_description" ref="aa21ac7dd1784e892ec482fe037fc646b" args="(ExifMnoteData *d, unsigned int n)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">const char* <a class="el" href="exif-mnote-data_8h.html#aa21ac7dd1784e892ec482fe037fc646b">exif_mnote_data_get_description</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="exif-mnote-data_8h.html#ad274692c704f570122329ef1ab32ed31">ExifMnoteData</a> * </td>
<td class="paramname"><em>d</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"><em>n</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Returns verbose textual description of the given MakerNote tag. </p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">d</td><td>MakerNote data </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">n</td><td>index of the entry within the MakerNote data </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>textual description of the tag </dd></dl>
</div>
</div>
<a class="anchor" id="a981bab235db2e156216d5cc43f48cac7"></a><!-- doxytag: member="exif-mnote-data.h::exif_mnote_data_get_id" ref="a981bab235db2e156216d5cc43f48cac7" args="(ExifMnoteData *d, unsigned int n)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">unsigned int <a class="el" href="exif-mnote-data_8h.html#a981bab235db2e156216d5cc43f48cac7">exif_mnote_data_get_id</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="exif-mnote-data_8h.html#ad274692c704f570122329ef1ab32ed31">ExifMnoteData</a> * </td>
<td class="paramname"><em>d</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"><em>n</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Return the MakerNote tag number for the tag at the specified index within the MakerNote. </p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">d</td><td>MakerNote data </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">n</td><td>index of the entry within the MakerNote data </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>MakerNote tag number </dd></dl>
</div>
</div>
<a class="anchor" id="a921ea2f4583325653d2207c6f1d98742"></a><!-- doxytag: member="exif-mnote-data.h::exif_mnote_data_get_name" ref="a921ea2f4583325653d2207c6f1d98742" args="(ExifMnoteData *d, unsigned int n)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">const char* <a class="el" href="exif-mnote-data_8h.html#a921ea2f4583325653d2207c6f1d98742">exif_mnote_data_get_name</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="exif-mnote-data_8h.html#ad274692c704f570122329ef1ab32ed31">ExifMnoteData</a> * </td>
<td class="paramname"><em>d</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"><em>n</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Returns textual name of the given MakerNote tag. </p>
<p>The name is a short, unique (within this type of MakerNote), non-localized text string containing only US-ASCII alphanumeric characters.</p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">d</td><td>MakerNote data </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">n</td><td>index of the entry within the MakerNote data </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>textual name of the tag </dd></dl>
</div>
</div>
<a class="anchor" id="abdf581cdc7ce672b44978ef993f22b78"></a><!-- doxytag: member="exif-mnote-data.h::exif_mnote_data_get_title" ref="abdf581cdc7ce672b44978ef993f22b78" args="(ExifMnoteData *d, unsigned int n)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">const char* <a class="el" href="exif-mnote-data_8h.html#abdf581cdc7ce672b44978ef993f22b78">exif_mnote_data_get_title</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="exif-mnote-data_8h.html#ad274692c704f570122329ef1ab32ed31">ExifMnoteData</a> * </td>
<td class="paramname"><em>d</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"><em>n</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Returns textual title of the given MakerNote tag. </p>
<p>The title is a short, localized textual description of the tag.</p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">d</td><td>MakerNote data </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">n</td><td>index of the entry within the MakerNote data </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>textual name of the tag </dd></dl>
</div>
</div>
<a class="anchor" id="a56299b268a29ea7fa1301952cfe32ca4"></a><!-- doxytag: member="exif-mnote-data.h::exif_mnote_data_get_value" ref="a56299b268a29ea7fa1301952cfe32ca4" args="(ExifMnoteData *d, unsigned int n, char *val, unsigned int maxlen)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">char* <a class="el" href="exif-mnote-data_8h.html#a56299b268a29ea7fa1301952cfe32ca4">exif_mnote_data_get_value</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="exif-mnote-data_8h.html#ad274692c704f570122329ef1ab32ed31">ExifMnoteData</a> * </td>
<td class="paramname"><em>d</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"><em>n</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">char * </td>
<td class="paramname"><em>val</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"><em>maxlen</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Return a textual representation of the value of the MakerNote entry. </p>
<dl class="warning"><dt><b>Warning:</b></dt><dd>The character set of the returned string may be in the encoding of the current locale or the native encoding of the camera.</dd></dl>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">d</td><td>MakerNote data </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">n</td><td>index of the entry within the MakerNote data </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">val</td><td>buffer in which to store value </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">maxlen</td><td>length of the buffer val </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>val pointer, or NULL on error </dd></dl>
</div>
</div>
<a class="anchor" id="aee48077668022309e4ba26da61c48334"></a><!-- doxytag: member="exif-mnote-data.h::exif_mnote_data_load" ref="aee48077668022309e4ba26da61c48334" args="(ExifMnoteData *d, const unsigned char *buf, unsigned int buf_siz)" -->
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<td class="memname">void <a class="el" href="exif-mnote-data_8h.html#aee48077668022309e4ba26da61c48334">exif_mnote_data_load</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="exif-mnote-data_8h.html#ad274692c704f570122329ef1ab32ed31">ExifMnoteData</a> * </td>
<td class="paramname"><em>d</em>, </td>
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<td class="paramtype">const unsigned char * </td>
<td class="paramname"><em>buf</em>, </td>
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<td class="paramtype">unsigned int </td>
<td class="paramname"><em>buf_siz</em> </td>
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<p>Load the MakerNote data from a memory buffer. </p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
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<tr><td class="paramdir">[in]</td><td class="paramname">d</td><td>MakerNote data </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">buf</td><td>pointer to raw MakerNote tag data </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">buf_siz</td><td>number of bytes of data at buf </td></tr>
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<a class="anchor" id="a79ac0114a43394bbf8ff490277762af3"></a><!-- doxytag: member="exif-mnote-data.h::exif_mnote_data_save" ref="a79ac0114a43394bbf8ff490277762af3" args="(ExifMnoteData *d, unsigned char **buf, unsigned int *buf_siz)" -->
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<td class="memname">void <a class="el" href="exif-mnote-data_8h.html#a79ac0114a43394bbf8ff490277762af3">exif_mnote_data_save</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="exif-mnote-data_8h.html#ad274692c704f570122329ef1ab32ed31">ExifMnoteData</a> * </td>
<td class="paramname"><em>d</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char ** </td>
<td class="paramname"><em>buf</em>, </td>
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<td class="paramtype">unsigned int * </td>
<td class="paramname"><em>buf_siz</em> </td>
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<p>Save the raw MakerNote data into a memory buffer. </p>
<p>The buffer is allocated by this function and must subsequently be freed by the caller.</p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramdir">[in,out]</td><td class="paramname">d</td><td>extract the data from this structure </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">buf</td><td>pointer to buffer pointer containing MakerNote data on return </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">buf_siz</td><td>pointer to the size of the buffer </td></tr>
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</dd>
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