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<a name="gst-plugins-base-libs-gstriff"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle"><a name="gst-plugins-base-libs-gstriff.top_of_page"></a>gstriff</span></h2>
<p>gstriff — Riff fileformat utillity functions.</p>
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<div class="refsynopsisdiv">
<a name="gst-plugins-base-libs-gstriff.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#include <gst/riff/riff-media.h>
<a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstCaps.html#GstCaps"><span class="returnvalue">GstCaps</span></a> * <a class="link" href="gst-plugins-base-libs-gstriff.html#gst-riff-create-audio-caps" title="gst_riff_create_audio_caps ()">gst_riff_create_audio_caps</a> (<em class="parameter"><code><span class="type">guint16</span> codec_id</code></em>,
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstriff.html#gst-riff-strh"><span class="type">gst_riff_strh</span></a> *strh</code></em>,
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstriff.html#gst-riff-strf-auds"><span class="type">gst_riff_strf_auds</span></a> *strf</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *strf_data</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *strd_data</code></em>,
<em class="parameter"><code><span class="type">char</span> **codec_name</code></em>);
<a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstCaps.html#GstCaps"><span class="returnvalue">GstCaps</span></a> * <a class="link" href="gst-plugins-base-libs-gstriff.html#gst-riff-create-audio-template-caps" title="gst_riff_create_audio_template_caps ()">gst_riff_create_audio_template_caps</a> (<em class="parameter"><code><span class="type">void</span></code></em>);
<a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstCaps.html#GstCaps"><span class="returnvalue">GstCaps</span></a> * <a class="link" href="gst-plugins-base-libs-gstriff.html#gst-riff-create-iavs-caps" title="gst_riff_create_iavs_caps ()">gst_riff_create_iavs_caps</a> (<em class="parameter"><code><span class="type">guint32</span> codec_fcc</code></em>,
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstriff.html#gst-riff-strh"><span class="type">gst_riff_strh</span></a> *strh</code></em>,
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstriff.html#gst-riff-strf-iavs"><span class="type">gst_riff_strf_iavs</span></a> *strf</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *strf_data</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *strd_data</code></em>,
<em class="parameter"><code><span class="type">char</span> **codec_name</code></em>);
<a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstCaps.html#GstCaps"><span class="returnvalue">GstCaps</span></a> * <a class="link" href="gst-plugins-base-libs-gstriff.html#gst-riff-create-iavs-template-caps" title="gst_riff_create_iavs_template_caps ()">gst_riff_create_iavs_template_caps</a> (<em class="parameter"><code><span class="type">void</span></code></em>);
<a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstCaps.html#GstCaps"><span class="returnvalue">GstCaps</span></a> * <a class="link" href="gst-plugins-base-libs-gstriff.html#gst-riff-create-video-caps" title="gst_riff_create_video_caps ()">gst_riff_create_video_caps</a> (<em class="parameter"><code><span class="type">guint32</span> codec_fcc</code></em>,
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstriff.html#gst-riff-strh"><span class="type">gst_riff_strh</span></a> *strh</code></em>,
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstriff.html#gst-riff-strf-vids"><span class="type">gst_riff_strf_vids</span></a> *strf</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *strf_data</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *strd_data</code></em>,
<em class="parameter"><code><span class="type">char</span> **codec_name</code></em>);
<a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstCaps.html#GstCaps"><span class="returnvalue">GstCaps</span></a> * <a class="link" href="gst-plugins-base-libs-gstriff.html#gst-riff-create-video-template-caps" title="gst_riff_create_video_template_caps ()">gst_riff_create_video_template_caps</a> (<em class="parameter"><code><span class="type">void</span></code></em>);
<span class="returnvalue">void</span> <a class="link" href="gst-plugins-base-libs-gstriff.html#gst-riff-init" title="gst_riff_init ()">gst_riff_init</a> (<em class="parameter"><code><span class="type">void</span></code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstriff.html#gst-riff-parse-chunk" title="gst_riff_parse_chunk ()">gst_riff_parse_chunk</a> (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstElement.html"><span class="type">GstElement</span></a> *element</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buf</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> *offset</code></em>,
<em class="parameter"><code><span class="type">guint32</span> *fourcc</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> **chunk_data</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstriff.html#gst-riff-parse-file-header" title="gst_riff_parse_file_header ()">gst_riff_parse_file_header</a> (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstElement.html"><span class="type">GstElement</span></a> *element</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buf</code></em>,
<em class="parameter"><code><span class="type">guint32</span> *doctype</code></em>);
<span class="returnvalue">void</span> <a class="link" href="gst-plugins-base-libs-gstriff.html#gst-riff-parse-info" title="gst_riff_parse_info ()">gst_riff_parse_info</a> (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstElement.html"><span class="type">GstElement</span></a> *element</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buf</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstTagList.html#GstTagList"><span class="type">GstTagList</span></a> **taglist</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstriff.html#gst-riff-parse-strf-auds" title="gst_riff_parse_strf_auds ()">gst_riff_parse_strf_auds</a> (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstElement.html"><span class="type">GstElement</span></a> *element</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buf</code></em>,
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstriff.html#gst-riff-strf-auds"><span class="type">gst_riff_strf_auds</span></a> **strf</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> **data</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstriff.html#gst-riff-parse-strf-iavs" title="gst_riff_parse_strf_iavs ()">gst_riff_parse_strf_iavs</a> (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstElement.html"><span class="type">GstElement</span></a> *element</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buf</code></em>,
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstriff.html#gst-riff-strf-iavs"><span class="type">gst_riff_strf_iavs</span></a> **strf</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> **data</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstriff.html#gst-riff-parse-strf-vids" title="gst_riff_parse_strf_vids ()">gst_riff_parse_strf_vids</a> (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstElement.html"><span class="type">GstElement</span></a> *element</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buf</code></em>,
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstriff.html#gst-riff-strf-vids"><span class="type">gst_riff_strf_vids</span></a> **strf</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> **data</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstriff.html#gst-riff-parse-strh" title="gst_riff_parse_strh ()">gst_riff_parse_strh</a> (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstElement.html"><span class="type">GstElement</span></a> *element</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buf</code></em>,
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstriff.html#gst-riff-strh"><span class="type">gst_riff_strh</span></a> **strh</code></em>);
<a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a> <a class="link" href="gst-plugins-base-libs-gstriff.html#gst-riff-read-chunk" title="gst_riff_read_chunk ()">gst_riff_read_chunk</a> (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstElement.html"><span class="type">GstElement</span></a> *element</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstPad.html"><span class="type">GstPad</span></a> *pad</code></em>,
<em class="parameter"><code><span class="type">guint64</span> *offset</code></em>,
<em class="parameter"><code><span class="type">guint32</span> *tag</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> **chunk_data</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-base-libs-gstriff.description"></a><h2>Description</h2>
<p>
A collection of functions to handle riff base files, such as avi, wav and
asf.
</p>
</div>
<div class="refsect1">
<a name="gst-plugins-base-libs-gstriff.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="gst-riff-create-audio-caps"></a><h3>gst_riff_create_audio_caps ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstCaps.html#GstCaps"><span class="returnvalue">GstCaps</span></a> * gst_riff_create_audio_caps (<em class="parameter"><code><span class="type">guint16</span> codec_id</code></em>,
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstriff.html#gst-riff-strh"><span class="type">gst_riff_strh</span></a> *strh</code></em>,
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstriff.html#gst-riff-strf-auds"><span class="type">gst_riff_strf_auds</span></a> *strf</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *strf_data</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *strd_data</code></em>,
<em class="parameter"><code><span class="type">char</span> **codec_name</code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="gst-riff-create-audio-template-caps"></a><h3>gst_riff_create_audio_template_caps ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstCaps.html#GstCaps"><span class="returnvalue">GstCaps</span></a> * gst_riff_create_audio_template_caps (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="gst-riff-create-iavs-caps"></a><h3>gst_riff_create_iavs_caps ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstCaps.html#GstCaps"><span class="returnvalue">GstCaps</span></a> * gst_riff_create_iavs_caps (<em class="parameter"><code><span class="type">guint32</span> codec_fcc</code></em>,
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstriff.html#gst-riff-strh"><span class="type">gst_riff_strh</span></a> *strh</code></em>,
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstriff.html#gst-riff-strf-iavs"><span class="type">gst_riff_strf_iavs</span></a> *strf</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *strf_data</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *strd_data</code></em>,
<em class="parameter"><code><span class="type">char</span> **codec_name</code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="gst-riff-create-iavs-template-caps"></a><h3>gst_riff_create_iavs_template_caps ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstCaps.html#GstCaps"><span class="returnvalue">GstCaps</span></a> * gst_riff_create_iavs_template_caps (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="gst-riff-create-video-caps"></a><h3>gst_riff_create_video_caps ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstCaps.html#GstCaps"><span class="returnvalue">GstCaps</span></a> * gst_riff_create_video_caps (<em class="parameter"><code><span class="type">guint32</span> codec_fcc</code></em>,
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstriff.html#gst-riff-strh"><span class="type">gst_riff_strh</span></a> *strh</code></em>,
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstriff.html#gst-riff-strf-vids"><span class="type">gst_riff_strf_vids</span></a> *strf</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *strf_data</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *strd_data</code></em>,
<em class="parameter"><code><span class="type">char</span> **codec_name</code></em>);</pre>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>codec_fcc</code></em> :</span></p></td>
<td>fourCC codec for this codec.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>strh</code></em> :</span></p></td>
<td>pointer to the strh stream header structure.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>strf</code></em> :</span></p></td>
<td>pointer to the strf stream header structure, including any
data that is within the range of strf.size, but excluding any
additional data withint this chunk but outside strf.size.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>strf_data</code></em> :</span></p></td>
<td>a <a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> containing the additional data in the strf
chunk outside reach of strf.size. Ususally a palette.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>strd_data</code></em> :</span></p></td>
<td>a <a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> containing the data in the strd stream header
chunk. Usually codec initialization data.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>codec_name</code></em> :</span></p></td>
<td>if given, will be filled with a human-readable codec name.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gst-riff-create-video-template-caps"></a><h3>gst_riff_create_video_template_caps ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstCaps.html#GstCaps"><span class="returnvalue">GstCaps</span></a> * gst_riff_create_video_template_caps (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="gst-riff-init"></a><h3>gst_riff_init ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gst_riff_init (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>
Initialize riff library.
</p>
</div>
<hr>
<div class="refsect2">
<a name="gst-riff-parse-chunk"></a><h3>gst_riff_parse_chunk ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_riff_parse_chunk (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstElement.html"><span class="type">GstElement</span></a> *element</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buf</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> *offset</code></em>,
<em class="parameter"><code><span class="type">guint32</span> *fourcc</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> **chunk_data</code></em>);</pre>
<p>
Reads a single chunk.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>element</code></em> :</span></p></td>
<td>caller element (used for debugging).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buf</code></em> :</span></p></td>
<td>input buffer.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>offset</code></em> :</span></p></td>
<td>offset in the buffer in the caller. Is incremented
by the read size by this function.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>fourcc</code></em> :</span></p></td>
<td>fourcc (returned by this function0 of the chunk.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>chunk_data</code></em> :</span></p></td>
<td>buffer (returned by the function) containing the
chunk data, which may be NULL if chunksize == 0</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>FALSE on error, TRUE otherwise</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gst-riff-parse-file-header"></a><h3>gst_riff_parse_file_header ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_riff_parse_file_header (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstElement.html"><span class="type">GstElement</span></a> *element</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buf</code></em>,
<em class="parameter"><code><span class="type">guint32</span> *doctype</code></em>);</pre>
<p>
Reads the first few bytes from the provided buffer, checks
if this stream is a RIFF stream, and determines document type.
This function takes ownership of <em class="parameter"><code>buf</code></em> so it should not be used anymore
after calling this function.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>element</code></em> :</span></p></td>
<td>caller element (used for debugging/error).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buf</code></em> :</span></p></td>
<td>input buffer from which the file header will be parsed,
should be at least 12 bytes long.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>doctype</code></em> :</span></p></td>
<td>a fourcc (returned by this function) to indicate the
type of document (according to the header).</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>FALSE if this is not a RIFF stream (in which case the
caller should error out; we already throw an error), or TRUE
if it is.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gst-riff-parse-info"></a><h3>gst_riff_parse_info ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gst_riff_parse_info (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstElement.html"><span class="type">GstElement</span></a> *element</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buf</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstTagList.html#GstTagList"><span class="type">GstTagList</span></a> **taglist</code></em>);</pre>
<p>
Parses stream metadata from input data.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>element</code></em> :</span></p></td>
<td>caller element (used for debugging/error).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buf</code></em> :</span></p></td>
<td>input data to be used for parsing, stripped from header.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>taglist</code></em> :</span></p></td>
<td>a pointer to a taglist (returned by this function)
containing information about this stream. May be
NULL if no supported tags were found.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gst-riff-parse-strf-auds"></a><h3>gst_riff_parse_strf_auds ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_riff_parse_strf_auds (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstElement.html"><span class="type">GstElement</span></a> *element</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buf</code></em>,
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstriff.html#gst-riff-strf-auds"><span class="type">gst_riff_strf_auds</span></a> **strf</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> **data</code></em>);</pre>
<p>
Parses an audio stream´s strf structure plus optionally some
extradata from input data. This function takes ownership of <em class="parameter"><code>buf</code></em>.
use.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>element</code></em> :</span></p></td>
<td>caller element (used for debugging/error).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buf</code></em> :</span></p></td>
<td>input data to be used for parsing, stripped from header.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>strf</code></em> :</span></p></td>
<td>a pointer (returned by this function) to a filled-in
strf/auds structure. Caller should free it.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
<td>a pointer (returned by this function) to a buffer
containing extradata for this particular stream (e.g.
codec initialization data).</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>TRUE if parsing succeeded, otherwise FALSE. The stream
should be skipped on error, but it is not fatal.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gst-riff-parse-strf-iavs"></a><h3>gst_riff_parse_strf_iavs ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_riff_parse_strf_iavs (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstElement.html"><span class="type">GstElement</span></a> *element</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buf</code></em>,
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstriff.html#gst-riff-strf-iavs"><span class="type">gst_riff_strf_iavs</span></a> **strf</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> **data</code></em>);</pre>
<p>
Parses a interleaved (also known as "complex") stream´s strf
structure plus optionally some extradata from input data. This
function takes ownership of <em class="parameter"><code>buf</code></em>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>element</code></em> :</span></p></td>
<td>caller element (used for debugging/error).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buf</code></em> :</span></p></td>
<td>input data to be used for parsing, stripped from header.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>strf</code></em> :</span></p></td>
<td>a pointer (returned by this function) to a filled-in
strf/iavs structure. Caller should free it.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
<td>a pointer (returned by this function) to a buffer
containing extradata for this particular stream (e.g.
codec initialization data).</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>TRUE if parsing succeeded, otherwise FALSE.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gst-riff-parse-strf-vids"></a><h3>gst_riff_parse_strf_vids ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_riff_parse_strf_vids (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstElement.html"><span class="type">GstElement</span></a> *element</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buf</code></em>,
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstriff.html#gst-riff-strf-vids"><span class="type">gst_riff_strf_vids</span></a> **strf</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> **data</code></em>);</pre>
<p>
Parses a video stream´s strf structure plus optionally some
extradata from input data. This function takes ownership of <em class="parameter"><code>buf</code></em>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>element</code></em> :</span></p></td>
<td>caller element (used for debugging/error).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buf</code></em> :</span></p></td>
<td>input data to be used for parsing, stripped from header.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>strf</code></em> :</span></p></td>
<td>a pointer (returned by this function) to a filled-in
strf/vids structure. Caller should free it.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
<td>a pointer (returned by this function) to a buffer
containing extradata for this particular stream (e.g.
palette, codec initialization data).</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>TRUE if parsing succeeded, otherwise FALSE. The stream
should be skipped on error, but it is not fatal.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gst-riff-parse-strh"></a><h3>gst_riff_parse_strh ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_riff_parse_strh (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstElement.html"><span class="type">GstElement</span></a> *element</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buf</code></em>,
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstriff.html#gst-riff-strh"><span class="type">gst_riff_strh</span></a> **strh</code></em>);</pre>
<p>
Parses a strh structure from input data. Takes ownership of <em class="parameter"><code>buf</code></em>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>element</code></em> :</span></p></td>
<td>caller element (used for debugging/error).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buf</code></em> :</span></p></td>
<td>input data to be used for parsing, stripped from header.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>strh</code></em> :</span></p></td>
<td>a pointer (returned by this function) to a filled-in
strh structure. Caller should free it.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>TRUE if parsing succeeded, otherwise FALSE. The stream
should be skipped on error, but it is not fatal.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gst-riff-read-chunk"></a><h3>gst_riff_read_chunk ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a> gst_riff_read_chunk (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstElement.html"><span class="type">GstElement</span></a> *element</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstPad.html"><span class="type">GstPad</span></a> *pad</code></em>,
<em class="parameter"><code><span class="type">guint64</span> *offset</code></em>,
<em class="parameter"><code><span class="type">guint32</span> *tag</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> **chunk_data</code></em>);</pre>
<p>
Reads a single chunk of data. Since 0.10.8 'JUNK' chunks
are skipped automatically.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>element</code></em> :</span></p></td>
<td>caller element (used for debugging).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>pad</code></em> :</span></p></td>
<td>pad to pull data from.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>offset</code></em> :</span></p></td>
<td>offset to pull from, incremented by this function.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>tag</code></em> :</span></p></td>
<td>fourcc of the chunk (returned by this function).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>chunk_data</code></em> :</span></p></td>
<td>buffer (returned by this function).</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>flow status.</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
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