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| <a href="#gst-plugins-base-libs-gsttagmux.synopsis" class="shortcut">Top</a> |
| | |
| <a href="#gst-plugins-base-libs-gsttagmux.description" class="shortcut">Description</a> |
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| <div class="refentry"> |
| <a name="gst-plugins-base-libs-gsttagmux"></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-gsttagmux.top_of_page"></a>gsttagmux</span></h2> |
| <p>gsttagmux — Base class for adding tags that are in one single chunk |
| directly at the beginning or at the end of a file</p> |
| </td> |
| <td valign="top" align="right"></td> |
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| <div class="refsynopsisdiv"> |
| <a name="gst-plugins-base-libs-gsttagmux.synopsis"></a><h2>Synopsis</h2> |
| <pre class="synopsis"> |
| #include <gst/tag/gsttagmux.h> |
| |
| struct <a class="link" href="gst-plugins-base-libs-gsttagmux.html#GstTagMux" title="struct GstTagMux">GstTagMux</a>; |
| struct <a class="link" href="gst-plugins-base-libs-gsttagmux.html#GstTagMuxClass" title="struct GstTagMuxClass">GstTagMuxClass</a>; |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gsttagmux.description"></a><h2>Description</h2> |
| <p> |
| </p> |
| <div class="refsect2"> |
| <a name="idp9069200"></a><h3>Deriving from GstTagMux</h3> |
| <p> |
| Provides a base class for adding tags at the beginning or end of a |
| stream. |
| </p> |
| <p> |
| Subclasses have to do the following things: |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"><p> |
| In their base init function, they must add pad templates for the sink |
| pad and the source pad to the element class, describing the media type |
| they accept and output in the caps of the pad template. |
| </p></li> |
| <li class="listitem"><p> |
| In their class init function, they must override the |
| GST_TAG_MUX_CLASS(mux_klass)->render_start_tag and/or |
| GST_TAG_MUX_CLASS(mux_klass)->render_end_tag vfuncs and set up a render |
| function. |
| </p></li> |
| </ul></div> |
| <p> |
| </p> |
| </div> |
| <p> |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gsttagmux.details"></a><h2>Details</h2> |
| <div class="refsect2"> |
| <a name="GstTagMux"></a><h3>struct GstTagMux</h3> |
| <pre class="programlisting">struct GstTagMux { |
| GstElement element; |
| }; |
| </pre> |
| <p> |
| Opaque <a class="link" href="gst-plugins-base-libs-gsttagmux.html#GstTagMux" title="struct GstTagMux"><span class="type">GstTagMux</span></a> structure. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody><tr> |
| <td><p><span class="term"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html"><span class="type">GstElement</span></a> <em class="structfield"><code><a name="GstTagMux.element"></a>element</code></em>;</span></p></td> |
| <td>parent element</td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstTagMuxClass"></a><h3>struct GstTagMuxClass</h3> |
| <pre class="programlisting">struct GstTagMuxClass { |
| GstElementClass parent_class; |
| |
| /* vfuncs */ |
| GstBuffer * (*render_start_tag) (GstTagMux * mux, const GstTagList * tag_list); |
| GstBuffer * (*render_end_tag) (GstTagMux * mux, const GstTagList * tag_list); |
| }; |
| </pre> |
| <p> |
| The <a class="link" href="gst-plugins-base-libs-gsttagmux.html#GstTagMuxClass" title="struct GstTagMuxClass"><span class="type">GstTagMuxClass</span></a> structure. Subclasses need to override at least one |
| of the two render vfuncs. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html#GstElementClass"><span class="type">GstElementClass</span></a> <em class="structfield"><code><a name="GstTagMuxClass.parent-class"></a>parent_class</code></em>;</span></p></td> |
| <td>the parent class.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="structfield"><code><a name="GstTagMuxClass.render-start-tag"></a>render_start_tag</code></em> ()</span></p></td> |
| <td>create a tag buffer to add to the beginning of the |
| input stream given a tag list, or NULL</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="structfield"><code><a name="GstTagMuxClass.render-end-tag"></a>render_end_tag</code></em> ()</span></p></td> |
| <td>create a tag buffer to add to the end of the |
| input stream given a tag list, or NULL</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gsttagmux.see-also"></a><h2>See Also</h2> |
| GstApeMux, GstId3Mux |
| </div> |
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