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| <a href="#gst-plugins-base-libs-gsttagexif.description" class="shortcut">Description</a></span> |
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| <div class="refentry"> |
| <a name="gst-plugins-base-libs-gsttagexif"></a><div class="titlepage"></div> |
| <div class="refnamediv"><table width="100%"><tr> |
| <td valign="top"> |
| <h2><span class="refentrytitle"><a name="gst-plugins-base-libs-gsttagexif.top_of_page"></a>gsttagexif</span></h2> |
| <p>gsttagexif — tag mappings and support functions for plugins |
| dealing with exif tags</p> |
| </td> |
| <td class="gallery_image" valign="top" align="right"></td> |
| </tr></table></div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gsttagexif.functions"></a><h2>Functions</h2> |
| <div class="informaltable"><table class="informaltable" width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="functions_return"> |
| <col class="functions_name"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="function_type"> |
| <a href="/usr/share/gtk-doc/html/gstreamer-1.0GstBuffer.html#GstBuffer-struct"><span class="returnvalue">GstBuffer</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gst-plugins-base-libs-gsttagexif.html#gst-tag-list-to-exif-buffer" title="gst_tag_list_to_exif_buffer ()">gst_tag_list_to_exif_buffer</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="/usr/share/gtk-doc/html/gstreamer-1.0GstBuffer.html#GstBuffer-struct"><span class="returnvalue">GstBuffer</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gst-plugins-base-libs-gsttagexif.html#gst-tag-list-to-exif-buffer-with-tiff-header" title="gst_tag_list_to_exif_buffer_with_tiff_header ()">gst_tag_list_to_exif_buffer_with_tiff_header</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="/usr/share/gtk-doc/html/gstreamer-1.0GstTagList.html#GstTagList-struct"><span class="returnvalue">GstTagList</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gst-plugins-base-libs-gsttagexif.html#gst-tag-list-from-exif-buffer" title="gst_tag_list_from_exif_buffer ()">gst_tag_list_from_exif_buffer</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="/usr/share/gtk-doc/html/gstreamer-1.0GstTagList.html#GstTagList-struct"><span class="returnvalue">GstTagList</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gst-plugins-base-libs-gsttagexif.html#gst-tag-list-from-exif-buffer-with-tiff-header" title="gst_tag_list_from_exif_buffer_with_tiff_header ()">gst_tag_list_from_exif_buffer_with_tiff_header</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gsttagexif.includes"></a><h2>Includes</h2> |
| <pre class="synopsis">#include <gst/tag/tag.h> |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gsttagexif.description"></a><h2>Description</h2> |
| <p>Contains utility function to parse <a href="/usr/share/gtk-doc/html/gstreamer-1.0GstTagList.html#GstTagList-struct"><span class="type">GstTagList</span></a>s from exif |
| buffers and to create exif buffers from <a href="/usr/share/gtk-doc/html/gstreamer-1.0GstTagList.html#GstTagList-struct"><span class="type">GstTagList</span></a>s</p> |
| <p>Note that next IFD fields on the created exif buffers are set to 0.</p> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gsttagexif.functions_details"></a><h2>Functions</h2> |
| <div class="refsect2"> |
| <a name="gst-tag-list-to-exif-buffer"></a><h3>gst_tag_list_to_exif_buffer ()</h3> |
| <pre class="programlisting"><a href="/usr/share/gtk-doc/html/gstreamer-1.0GstBuffer.html#GstBuffer-struct"><span class="returnvalue">GstBuffer</span></a> * |
| gst_tag_list_to_exif_buffer (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gstreamer-1.0GstTagList.html#GstTagList-struct"><span class="type">GstTagList</span></a> *taglist</code></em>, |
| <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="type">gint</span></a> byte_order</code></em>, |
| <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#guint32"><span class="type">guint32</span></a> base_offset</code></em>);</pre> |
| <p>Formats the tags in taglist on exif format. The resulting buffer contains |
| the tags IFD and is followed by the data pointed by the tag entries.</p> |
| <div class="refsect3"> |
| <a name="gst-tag-list-to-exif-buffer.parameters"></a><h4>Parameters</h4> |
| <div class="informaltable"><table class="informaltable" width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="parameter_name"><p>taglist</p></td> |
| <td class="parameter_description"><p>The taglist</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>byte_order</p></td> |
| <td class="parameter_description"><p>byte order used in writing (G_LITTLE_ENDIAN or G_BIG_ENDIAN)</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>base_offset</p></td> |
| <td class="parameter_description"><p>Offset from the tiff header first byte</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="gst-tag-list-to-exif-buffer.returns"></a><h4>Returns</h4> |
| <p> A GstBuffer containing the tag entries followed by the tag data</p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-tag-list-to-exif-buffer-with-tiff-header"></a><h3>gst_tag_list_to_exif_buffer_with_tiff_header ()</h3> |
| <pre class="programlisting"><a href="/usr/share/gtk-doc/html/gstreamer-1.0GstBuffer.html#GstBuffer-struct"><span class="returnvalue">GstBuffer</span></a> * |
| gst_tag_list_to_exif_buffer_with_tiff_header |
| (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gstreamer-1.0GstTagList.html#GstTagList-struct"><span class="type">GstTagList</span></a> *taglist</code></em>);</pre> |
| <p>Formats the tags in taglist into exif structure, a tiff header |
| is put in the beginning of the buffer.</p> |
| <div class="refsect3"> |
| <a name="gst-tag-list-to-exif-buffer-with-tiff-header.parameters"></a><h4>Parameters</h4> |
| <div class="informaltable"><table class="informaltable" width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody><tr> |
| <td class="parameter_name"><p>taglist</p></td> |
| <td class="parameter_description"><p>The taglist</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="gst-tag-list-to-exif-buffer-with-tiff-header.returns"></a><h4>Returns</h4> |
| <p> A GstBuffer containing the data</p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-tag-list-from-exif-buffer"></a><h3>gst_tag_list_from_exif_buffer ()</h3> |
| <pre class="programlisting"><a href="/usr/share/gtk-doc/html/gstreamer-1.0GstTagList.html#GstTagList-struct"><span class="returnvalue">GstTagList</span></a> * |
| gst_tag_list_from_exif_buffer (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-1.0GstBuffer.html#GstBuffer-struct"><span class="type">GstBuffer</span></a> *buffer</code></em>, |
| <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="type">gint</span></a> byte_order</code></em>, |
| <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#guint32"><span class="type">guint32</span></a> base_offset</code></em>);</pre> |
| <p>Parses the IFD and IFD tags data contained in the buffer and puts it |
| on a taglist. The base_offset is used to subtract from the offset in |
| the tag entries and be able to get the offset relative to the buffer |
| start</p> |
| <div class="refsect3"> |
| <a name="gst-tag-list-from-exif-buffer.parameters"></a><h4>Parameters</h4> |
| <div class="informaltable"><table class="informaltable" width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="parameter_name"><p>buffer</p></td> |
| <td class="parameter_description"><p>The exif buffer</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>byte_order</p></td> |
| <td class="parameter_description"><p>byte order of the data</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>base_offset</p></td> |
| <td class="parameter_description"><p>Offset from the tiff header to this buffer</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="gst-tag-list-from-exif-buffer.returns"></a><h4>Returns</h4> |
| <p> The parsed taglist</p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-tag-list-from-exif-buffer-with-tiff-header"></a><h3>gst_tag_list_from_exif_buffer_with_tiff_header ()</h3> |
| <pre class="programlisting"><a href="/usr/share/gtk-doc/html/gstreamer-1.0GstTagList.html#GstTagList-struct"><span class="returnvalue">GstTagList</span></a> * |
| gst_tag_list_from_exif_buffer_with_tiff_header |
| (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-1.0GstBuffer.html#GstBuffer-struct"><span class="type">GstBuffer</span></a> *buffer</code></em>);</pre> |
| <p>Parses the exif tags starting with a tiff header structure.</p> |
| <div class="refsect3"> |
| <a name="gst-tag-list-from-exif-buffer-with-tiff-header.parameters"></a><h4>Parameters</h4> |
| <div class="informaltable"><table class="informaltable" width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody><tr> |
| <td class="parameter_name"><p>buffer</p></td> |
| <td class="parameter_description"><p>The exif buffer</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="gst-tag-list-from-exif-buffer-with-tiff-header.returns"></a><h4>Returns</h4> |
| <p> The taglist</p> |
| </div> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gsttagexif.other_details"></a><h2>Types and Values</h2> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gsttagexif.see-also"></a><h2>See Also</h2> |
| <p><a href="/usr/share/gtk-doc/html/gstreamer-1.0GstTagList.html#GstTagList-struct"><span class="type">GstTagList</span></a></p> |
| </div> |
| </div> |
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