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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>GStreamer Good Plugins 1.0 Plugins Reference Manual: flacparse</title>
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<a href="#gst-plugins-good-plugins-flacparse.properties" class="shortcut">Properties</a></span>
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<a name="gst-plugins-good-plugins-flacparse"></a><div class="titlepage"></div>
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<td valign="top">
<h2><span class="refentrytitle"><a name="gst-plugins-good-plugins-flacparse.top_of_page"></a>flacparse</span></h2>
<p>flacparse — Parses audio with the FLAC lossless audio codec</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-flacparse.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="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-flacparse.html#GstFlacParse--check-frame-checksums" title="The “check-frame-checksums” property">check-frame-checksums</a></td>
<td class="property_flags">Read / Write</td>
</tr></tbody>
</table></div>
</div>
<a name="GstFlacParse"></a><div class="refsect1">
<a name="gst-plugins-good-plugins-flacparse.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-flacparse.html#GstFlacParse-struct" title="struct GstFlacParse">GstFlacParse</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-flacparse.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen"> <a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObject">GObject</a>
<span class="lineart">╰──</span> <a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
<span class="lineart">╰──</span> <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstObject.html">GstObject</a>
<span class="lineart">╰──</span> <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html">GstElement</a>
<span class="lineart">╰──</span> <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer-libs/html/gstreamer-libs-GstBaseParse.html#GstBaseParse">GstBaseParse</a>
<span class="lineart">╰──</span> GstFlacParse
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-flacparse.description"></a><h2>Description</h2>
<p>The flacparse element will parse the header packets of the FLAC
stream and put them as the streamheader in the caps. This is used in the
multifdsink case where you want to stream live FLAC streams to multiple
clients, each client has to receive the streamheaders first before they can
consume the FLAC packets.</p>
<p>This element also makes sure that the buffers that it pushes out are properly
timestamped and that their offset and offset_end are set. The buffers that
flacparse outputs have all of the metadata that oggmux expects to receive,
which allows you to (for example) remux an ogg/flac or convert a native FLAC
format file to an ogg bitstream.</p>
<div class="refsect2">
<a name="id-1.2.54.7.4"></a><h3>Example pipelines</h3>
<div class="informalexample">
<table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td class="listing_lines" align="right"><pre>1
2</pre></td>
<td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> <span class="gtkdoc opt">-</span>v filesrc location<span class="gtkdoc opt">=</span>sine<span class="gtkdoc opt">.</span>flac <span class="gtkdoc opt">!</span> flacparse <span class="gtkdoc opt">!</span> identity \
<span class="gtkdoc opt">!</span> oggmux <span class="gtkdoc opt">!</span> filesink location<span class="gtkdoc opt">=</span>sine<span class="gtkdoc opt">-</span>remuxed<span class="gtkdoc opt">.</span>ogg</pre></td>
</tr>
</tbody>
</table>
</div>
This pipeline converts a native FLAC format file to an ogg bitstream.
It also illustrates that the streamheader is set in the caps, and that each
buffer has the timestamp, duration, offset, and offset_end set.
</div>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="id-1.2.54.7.5.1"></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>
audioparsers
</td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>Sebastian Dröge <sebastian.droege@collabora.co.uk></td>
</tr>
<tr>
<td><p><span class="term">class</span></p></td>
<td>Codec/Parser/Audio</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="id-1.2.54.7.5.2"></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>audio/x-flac</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>audio/x-flac, framed=(boolean)true, channels=(int)[ 1, 8 ], rate=(int)[ 1, 655350 ]</td>
</tr>
</tbody>
</table></div>
</div>
</div>
<p>
</p>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-flacparse.functions_details"></a><h2>Functions</h2>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-flacparse.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstFlacParse-struct"></a><h3>struct GstFlacParse</h3>
<pre class="programlisting">struct GstFlacParse;</pre>
<p>
</p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-flacparse.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstFlacParse--check-frame-checksums"></a><h3>The <code class="literal">“check-frame-checksums”</code> property</h3>
<pre class="programlisting"> “check-frame-checksums” <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Check the overall checksums of every frame.</p>
<p>Flags: Read / Write</p>
<p>Default value: FALSE</p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-flacparse.see-also"></a><h2>See Also</h2>
<p>flacdec, oggdemux, vorbisparse</p>
</div>
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