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| <a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span> |
| <a href="#gstreamer-GstMeta.description" class="shortcut">Description</a></span> |
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| <div class="refentry"> |
| <a name="gstreamer-GstMeta"></a><div class="titlepage"></div> |
| <div class="refnamediv"><table width="100%"><tr> |
| <td valign="top"> |
| <h2><span class="refentrytitle"><a name="gstreamer-GstMeta.top_of_page"></a>GstMeta</span></h2> |
| <p>GstMeta</p> |
| </td> |
| <td class="gallery_image" valign="top" align="right"></td> |
| </tr></table></div> |
| <div class="refsect1"> |
| <a name="gstreamer-GstMeta.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="define_keyword">#define</td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstMeta.html#GST-META-FLAGS:CAPS" title="GST_META_FLAGS()">GST_META_FLAGS</a><span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstMeta.html#GST-META-FLAG-IS-SET:CAPS" title="GST_META_FLAG_IS_SET()">GST_META_FLAG_IS_SET</a><span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstMeta.html#GST-META-FLAG-SET:CAPS" title="GST_META_FLAG_SET()">GST_META_FLAG_SET</a><span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstMeta.html#GST-META-FLAG-UNSET:CAPS" title="GST_META_FLAG_UNSET()">GST_META_FLAG_UNSET</a><span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <span class="c_punctuation">(</span><a class="link" href="gstreamer-GstMeta.html#GstMetaInitFunction" title="GstMetaInitFunction ()">*GstMetaInitFunction</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <span class="returnvalue">void</span> |
| </td> |
| <td class="function_name"> |
| <span class="c_punctuation">(</span><a class="link" href="gstreamer-GstMeta.html#GstMetaFreeFunction" title="GstMetaFreeFunction ()">*GstMetaFreeFunction</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <span class="c_punctuation">(</span><a class="link" href="gstreamer-GstMeta.html#GstMetaTransformFunction" title="GstMetaTransformFunction ()">*GstMetaTransformFunction</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstMeta.html#GST-META-TRANSFORM-IS-COPY:CAPS" title="GST_META_TRANSFORM_IS_COPY()">GST_META_TRANSFORM_IS_COPY</a><span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="/usr/share/gtk-doc/html/gobjectgobject-Type-Information.html#GType"><span class="returnvalue">GType</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstMeta.html#gst-meta-api-type-register" title="gst_meta_api_type_register ()">gst_meta_api_type_register</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstMeta.html#gst-meta-api-type-has-tag" title="gst_meta_api_type_has_tag ()">gst_meta_api_type_has_tag</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type">const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> * const* |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstMeta.html#gst-meta-api-type-get-tags" title="gst_meta_api_type_get_tags ()">gst_meta_api_type_get_tags</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type">const <a class="link" href="gstreamer-GstMeta.html#GstMetaInfo" title="struct GstMetaInfo"><span class="returnvalue">GstMetaInfo</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstMeta.html#gst-meta-register" title="gst_meta_register ()">gst_meta_register</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type">const <a class="link" href="gstreamer-GstMeta.html#GstMetaInfo" title="struct GstMetaInfo"><span class="returnvalue">GstMetaInfo</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstMeta.html#gst-meta-get-info" title="gst_meta_get_info ()">gst_meta_get_info</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect1"> |
| <a name="gstreamer-GstMeta.other"></a><h2>Types and Values</h2> |
| <div class="informaltable"><table class="informaltable" width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="name"> |
| <col class="description"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="datatype_keyword">struct</td> |
| <td class="function_name"><a class="link" href="gstreamer-GstMeta.html#GstMeta" title="struct GstMeta">GstMeta</a></td> |
| </tr> |
| <tr> |
| <td class="datatype_keyword">enum</td> |
| <td class="function_name"><a class="link" href="gstreamer-GstMeta.html#GstMetaFlags" title="enum GstMetaFlags">GstMetaFlags</a></td> |
| </tr> |
| <tr> |
| <td class="datatype_keyword">struct</td> |
| <td class="function_name"><a class="link" href="gstreamer-GstMeta.html#GstMetaInfo" title="struct GstMetaInfo">GstMetaInfo</a></td> |
| </tr> |
| <tr> |
| <td class="datatype_keyword"> </td> |
| <td class="function_name"><a class="link" href="gstreamer-GstMeta.html#GstMetaTransformCopy" title="GstMetaTransformCopy">GstMetaTransformCopy</a></td> |
| </tr> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"><a class="link" href="gstreamer-GstMeta.html#GST-META-TAG-MEMORY:CAPS" title="GST_META_TAG_MEMORY">GST_META_TAG_MEMORY</a></td> |
| </tr> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"><a class="link" href="gstreamer-GstMeta.html#GST-META-TAG-MEMORY-STR:CAPS" title="GST_META_TAG_MEMORY_STR">GST_META_TAG_MEMORY_STR</a></td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect1"> |
| <a name="gstreamer-GstMeta.includes"></a><h2>Includes</h2> |
| <pre class="synopsis">#include <gst/gst.h> |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gstreamer-GstMeta.description"></a><h2>Description</h2> |
| </div> |
| <div class="refsect1"> |
| <a name="gstreamer-GstMeta.functions_details"></a><h2>Functions</h2> |
| <div class="refsect2"> |
| <a name="GST-META-FLAGS:CAPS"></a><h3>GST_META_FLAGS()</h3> |
| <pre class="programlisting">#define GST_META_FLAGS(meta) (GST_META_CAST (meta)->flags) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-META-FLAG-IS-SET:CAPS"></a><h3>GST_META_FLAG_IS_SET()</h3> |
| <pre class="programlisting">#define GST_META_FLAG_IS_SET(meta,flag) !!(GST_META_FLAGS (meta) & (flag)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-META-FLAG-SET:CAPS"></a><h3>GST_META_FLAG_SET()</h3> |
| <pre class="programlisting">#define GST_META_FLAG_SET(meta,flag) (GST_META_FLAGS (meta) |= (flag)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-META-FLAG-UNSET:CAPS"></a><h3>GST_META_FLAG_UNSET()</h3> |
| <pre class="programlisting">#define GST_META_FLAG_UNSET(meta,flag) (GST_META_FLAGS (meta) &= ~(flag)) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstMetaInitFunction"></a><h3>GstMetaInitFunction ()</h3> |
| <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| <span class="c_punctuation">(</span>*GstMetaInitFunction<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="gstreamer-GstMeta.html#GstMeta" title="struct GstMeta"><span class="type">GstMeta</span></a> *meta</code></em>, |
| <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> params</code></em>, |
| <em class="parameter"><code><a class="link" href="GstBuffer.html" title="GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>);</pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstMetaFreeFunction"></a><h3>GstMetaFreeFunction ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> |
| <span class="c_punctuation">(</span>*GstMetaFreeFunction<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="gstreamer-GstMeta.html#GstMeta" title="struct GstMeta"><span class="type">GstMeta</span></a> *meta</code></em>, |
| <em class="parameter"><code><a class="link" href="GstBuffer.html" title="GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>);</pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstMetaTransformFunction"></a><h3>GstMetaTransformFunction ()</h3> |
| <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| <span class="c_punctuation">(</span>*GstMetaTransformFunction<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="GstBuffer.html" title="GstBuffer"><span class="type">GstBuffer</span></a> *transbuf</code></em>, |
| <em class="parameter"><code><a class="link" href="gstreamer-GstMeta.html#GstMeta" title="struct GstMeta"><span class="type">GstMeta</span></a> *meta</code></em>, |
| <em class="parameter"><code><a class="link" href="GstBuffer.html" title="GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>, |
| <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Quarks.html#GQuark"><span class="type">GQuark</span></a> type</code></em>, |
| <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-META-TRANSFORM-IS-COPY:CAPS"></a><h3>GST_META_TRANSFORM_IS_COPY()</h3> |
| <pre class="programlisting">#define GST_META_TRANSFORM_IS_COPY(type) ((type) == _gst_meta_transform_copy) |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-meta-api-type-register"></a><h3>gst_meta_api_type_register ()</h3> |
| <pre class="programlisting"><a href="/usr/share/gtk-doc/html/gobjectgobject-Type-Information.html#GType"><span class="returnvalue">GType</span></a> |
| gst_meta_api_type_register (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *api</code></em>, |
| <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> **tags</code></em>);</pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-meta-api-type-has-tag"></a><h3>gst_meta_api_type_has_tag ()</h3> |
| <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| gst_meta_api_type_has_tag (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobjectgobject-Type-Information.html#GType"><span class="type">GType</span></a> api</code></em>, |
| <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Quarks.html#GQuark"><span class="type">GQuark</span></a> tag</code></em>);</pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-meta-api-type-get-tags"></a><h3>gst_meta_api_type_get_tags ()</h3> |
| <pre class="programlisting">const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> * const* |
| gst_meta_api_type_get_tags (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobjectgobject-Type-Information.html#GType"><span class="type">GType</span></a> api</code></em>);</pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-meta-register"></a><h3>gst_meta_register ()</h3> |
| <pre class="programlisting">const <a class="link" href="gstreamer-GstMeta.html#GstMetaInfo" title="struct GstMetaInfo"><span class="returnvalue">GstMetaInfo</span></a> * |
| gst_meta_register (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobjectgobject-Type-Information.html#GType"><span class="type">GType</span></a> api</code></em>, |
| <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *impl</code></em>, |
| <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gsize"><span class="type">gsize</span></a> size</code></em>, |
| <em class="parameter"><code><a class="link" href="gstreamer-GstMeta.html#GstMetaInitFunction" title="GstMetaInitFunction ()"><span class="type">GstMetaInitFunction</span></a> init_func</code></em>, |
| <em class="parameter"><code><a class="link" href="gstreamer-GstMeta.html#GstMetaFreeFunction" title="GstMetaFreeFunction ()"><span class="type">GstMetaFreeFunction</span></a> free_func</code></em>, |
| <em class="parameter"><code><a class="link" href="gstreamer-GstMeta.html#GstMetaTransformFunction" title="GstMetaTransformFunction ()"><span class="type">GstMetaTransformFunction</span></a> transform_func</code></em>);</pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-meta-get-info"></a><h3>gst_meta_get_info ()</h3> |
| <pre class="programlisting">const <a class="link" href="gstreamer-GstMeta.html#GstMetaInfo" title="struct GstMetaInfo"><span class="returnvalue">GstMetaInfo</span></a> * |
| gst_meta_get_info (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *impl</code></em>);</pre> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gstreamer-GstMeta.other_details"></a><h2>Types and Values</h2> |
| <div class="refsect2"> |
| <a name="GstMeta"></a><h3>struct GstMeta</h3> |
| <pre class="programlisting">struct GstMeta { |
| GstMetaFlags flags; |
| const GstMetaInfo *info; |
| }; |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstMetaFlags"></a><h3>enum GstMetaFlags</h3> |
| <div class="refsect3"> |
| <a name="GstMetaFlags.members"></a><h4>Members</h4> |
| <div class="informaltable"><table class="informaltable" width="100%" border="0"> |
| <colgroup> |
| <col width="300px" class="enum_members_name"> |
| <col class="enum_members_description"> |
| <col width="200px" class="enum_members_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="enum_member_name"><p><a name="GST-META-FLAG-NONE:CAPS"></a>GST_META_FLAG_NONE</p></td> |
| <td> </td> |
| <td> </td> |
| </tr> |
| <tr> |
| <td class="enum_member_name"><p><a name="GST-META-FLAG-READONLY:CAPS"></a>GST_META_FLAG_READONLY</p></td> |
| <td> </td> |
| <td> </td> |
| </tr> |
| <tr> |
| <td class="enum_member_name"><p><a name="GST-META-FLAG-POOLED:CAPS"></a>GST_META_FLAG_POOLED</p></td> |
| <td> </td> |
| <td> </td> |
| </tr> |
| <tr> |
| <td class="enum_member_name"><p><a name="GST-META-FLAG-LOCKED:CAPS"></a>GST_META_FLAG_LOCKED</p></td> |
| <td> </td> |
| <td> </td> |
| </tr> |
| <tr> |
| <td class="enum_member_name"><p><a name="GST-META-FLAG-LAST:CAPS"></a>GST_META_FLAG_LAST</p></td> |
| <td> </td> |
| <td> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstMetaInfo"></a><h3>struct GstMetaInfo</h3> |
| <pre class="programlisting">struct GstMetaInfo { |
| GType api; |
| GType type; |
| gsize size; |
| |
| GstMetaInitFunction init_func; |
| GstMetaFreeFunction free_func; |
| GstMetaTransformFunction transform_func; |
| }; |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstMetaTransformCopy"></a><h3>GstMetaTransformCopy</h3> |
| <pre class="programlisting">typedef struct { |
| gboolean region; |
| gsize offset; |
| gsize size; |
| } GstMetaTransformCopy; |
| </pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-META-TAG-MEMORY:CAPS"></a><h3>GST_META_TAG_MEMORY</h3> |
| <pre class="programlisting">#define GST_META_TAG_MEMORY (_gst_meta_tag_memory) |
| </pre> |
| <div class="warning"><p><code class="literal">GST_META_TAG_MEMORY</code> is deprecated and should not be used in newly-written code.</p></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-META-TAG-MEMORY-STR:CAPS"></a><h3>GST_META_TAG_MEMORY_STR</h3> |
| <pre class="programlisting">#define GST_META_TAG_MEMORY_STR "memory" |
| </pre> |
| </div> |
| </div> |
| </div> |
| <div class="footer"> |
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