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<a name="gst-plugins-good-plugins-id3demux"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle"><a name="gst-plugins-good-plugins-id3demux.top_of_page"></a>id3demux</span></h2>
<p>id3demux — Read and output ID3v1 and ID3v2 tags while demuxing the contents</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
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<div class="refsect1">
<a name="gst-plugins-good-plugins-id3demux.properties"></a><h2>Properties</h2>
<div class="informaltable"><table border="0">
<colgroup>
<col width="150px" class="properties_type">
<col width="300px" class="properties_name">
<col width="200px" class="properties_flags">
</colgroup>
<tbody><tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-id3demux.html#GstID3Demux--prefer-v1" title="The “prefer-v1” property">prefer-v1</a></td>
<td class="property_flags">Read / Write / Construct</td>
</tr></tbody>
</table></div>
</div>
<a name="GstID3Demux"></a><div class="refsect1">
<a name="gst-plugins-good-plugins-id3demux.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table 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="gst-plugins-good-plugins-id3demux.html#GstID3Demux-struct" title="struct GstID3Demux">GstID3Demux</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-id3demux.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen"> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject">GObject</a>
<span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
<span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstObject.html">GstObject</a>
<span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html">GstElement</a>
<span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gst-plugins-base-libs-1.0/gst-plugins-base-libs-gsttagdemux.html#GstTagDemux">GstTagDemux</a>
<span class="lineart">╰──</span> GstID3Demux
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-id3demux.description"></a><h2>Description</h2>
<p>id3demux accepts data streams with either (or both) ID3v2 regions at the
start, or ID3v1 at the end. The mime type of the data between the tag blocks
is detected using typefind functions, and the appropriate output mime type
set on outgoing buffers. </p>
<p>The element is only able to read ID3v1 tags from a seekable stream, because
they are at the end of the stream. That is, when get_range mode is supported
by the upstream elements. If get_range operation is available, id3demux makes
it available downstream. This means that elements which require get_range
mode, such as wavparse, can operate on files containing ID3 tag information.</p>
<p>This id3demux element replaced an older element with the same name which
relied on libid3tag from the MAD project.</p>
<div class="refsect2">
<a name="id-1.2.65.7.5"></a><h3>Example launch line</h3>
<div class="informalexample"><pre class="programlisting">
gst-launch-1.0 filesrc location=file.mp3 ! id3demux ! fakesink -t
</pre></div> This pipeline should read any available ID3 tag information and output it.
The contents of the file inside the ID3 tag regions should be detected, and
the appropriate mime type set on buffers produced from id3demux.
</div>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="id-1.2.65.7.6.1"></a><h3>Element Information</h3>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">plugin</span></p></td>
<td>
<a class="link" href="gst-plugins-good-plugins-plugin-id3demux.html#plugin-id3demux">id3demux</a>
</td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>Jan Schmidt <thaytan@mad.scientist.com></td>
</tr>
<tr>
<td><p><span class="term">class</span></p></td>
<td>Codec/Demuxer/Metadata</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="id-1.2.65.7.6.2"></a><h3>Element Pads</h3>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">name</span></p></td>
<td>sink</td>
</tr>
<tr>
<td><p><span class="term">direction</span></p></td>
<td>sink</td>
</tr>
<tr>
<td><p><span class="term">presence</span></p></td>
<td>always</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>application/x-id3</td>
</tr>
</tbody>
</table></div>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">name</span></p></td>
<td>src</td>
</tr>
<tr>
<td><p><span class="term">direction</span></p></td>
<td>source</td>
</tr>
<tr>
<td><p><span class="term">presence</span></p></td>
<td>always</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>ANY</td>
</tr>
</tbody>
</table></div>
</div>
</div>
<p>
</p>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-id3demux.functions_details"></a><h2>Functions</h2>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-id3demux.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstID3Demux-struct"></a><h3>struct GstID3Demux</h3>
<pre class="programlisting">struct GstID3Demux;</pre>
<p>
</p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-id3demux.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstID3Demux--prefer-v1"></a><h3>The <code class="literal">“prefer-v1”</code> property</h3>
<pre class="programlisting"> “prefer-v1” <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Prefer tags from ID3v1 tag at end of file when both ID3v1 and ID3v2 tags are present.</p>
<p>Flags: Read / Write / Construct</p>
<p>Default value: FALSE</p>
</div>
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