<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>gstaudioiec61937</title> <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> <link rel="home" href="index.html" title="GStreamer Base Plugins 0.10 Library Reference Manual"> <link rel="up" href="gstreamer-audio.html" title="Audio Library"> <link rel="prev" href="gst-plugins-base-libs-gstringbuffer.html" title="gstringbuffer"> <link rel="next" href="gstreamer-cdda.html" title="CDDA Library"> <meta name="generator" content="GTK-Doc V1.18 (XML mode)"> <link rel="stylesheet" href="style.css" type="text/css"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"> <tr valign="middle"> <td><a accesskey="p" href="gst-plugins-base-libs-gstringbuffer.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td> <td><a accesskey="u" href="gstreamer-audio.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td> <td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td> <th width="100%" align="center">GStreamer Base Plugins 0.10 Library Reference Manual</th> <td><a accesskey="n" href="gstreamer-cdda.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td> </tr> <tr><td colspan="5" class="shortcuts"> <a href="#gst-plugins-base-libs-gstaudioiec61937.synopsis" class="shortcut">Top</a> | <a href="#gst-plugins-base-libs-gstaudioiec61937.description" class="shortcut">Description</a> </td></tr> </table> <div class="refentry"> <a name="gst-plugins-base-libs-gstaudioiec61937"></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-gstaudioiec61937.top_of_page"></a>gstaudioiec61937</span></h2> <p>gstaudioiec61937 — Utility functions for IEC 61937 payloading</p> </td> <td valign="top" align="right"></td> </tr></table></div> <div class="refsynopsisdiv"> <a name="gst-plugins-base-libs-gstaudioiec61937.synopsis"></a><h2>Synopsis</h2> <pre class="synopsis"> #include <gst/audio/gstaudioiec61937.h> <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> <a class="link" href="gst-plugins-base-libs-gstaudioiec61937.html#gst-audio-iec61937-frame-size" title="gst_audio_iec61937_frame_size ()">gst_audio_iec61937_frame_size</a> (<em class="parameter"><code>const <a class="link" href="gst-plugins-base-libs-gstringbuffer.html#GstRingBufferSpec" title="struct GstRingBufferSpec"><span class="type">GstRingBufferSpec</span></a> *spec</code></em>); <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstaudioiec61937.html#gst-audio-iec61937-payload" title="gst_audio_iec61937_payload ()">gst_audio_iec61937_payload</a> (<em class="parameter"><code>const <span class="type">guint8</span> *src</code></em>, <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> src_n</code></em>, <em class="parameter"><code><span class="type">guint8</span> *dst</code></em>, <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> dst_n</code></em>, <em class="parameter"><code>const <a class="link" href="gst-plugins-base-libs-gstringbuffer.html#GstRingBufferSpec" title="struct GstRingBufferSpec"><span class="type">GstRingBufferSpec</span></a> *spec</code></em>); </pre> </div> <div class="refsect1"> <a name="gst-plugins-base-libs-gstaudioiec61937.description"></a><h2>Description</h2> <p> This module contains some helper functions for encapsulating various audio formats in IEC 61937 headers and padding. </p> </div> <div class="refsect1"> <a name="gst-plugins-base-libs-gstaudioiec61937.details"></a><h2>Details</h2> <div class="refsect2"> <a name="gst-audio-iec61937-frame-size"></a><h3>gst_audio_iec61937_frame_size ()</h3> <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> gst_audio_iec61937_frame_size (<em class="parameter"><code>const <a class="link" href="gst-plugins-base-libs-gstringbuffer.html#GstRingBufferSpec" title="struct GstRingBufferSpec"><span class="type">GstRingBufferSpec</span></a> *spec</code></em>);</pre> <p> Calculated the size of the buffer expected by <a class="link" href="gst-plugins-base-libs-gstaudioiec61937.html#gst-audio-iec61937-payload" title="gst_audio_iec61937_payload ()"><code class="function">gst_audio_iec61937_payload()</code></a> for payloading type from <em class="parameter"><code>spec</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>spec</code></em> :</span></p></td> <td>the ringbufer spec</td> </tr> <tr> <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> <td>the size or 0 if the given <em class="parameter"><code>type</code></em> is not supported or cannot be payloaded.</td> </tr> </tbody> </table></div> <p class="since">Since 0.10.36</p> </div> <hr> <div class="refsect2"> <a name="gst-audio-iec61937-payload"></a><h3>gst_audio_iec61937_payload ()</h3> <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_audio_iec61937_payload (<em class="parameter"><code>const <span class="type">guint8</span> *src</code></em>, <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> src_n</code></em>, <em class="parameter"><code><span class="type">guint8</span> *dst</code></em>, <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> dst_n</code></em>, <em class="parameter"><code>const <a class="link" href="gst-plugins-base-libs-gstringbuffer.html#GstRingBufferSpec" title="struct GstRingBufferSpec"><span class="type">GstRingBufferSpec</span></a> *spec</code></em>);</pre> <p> Payloads <em class="parameter"><code>src</code></em> in the form specified by IEC 61937 for the type from <em class="parameter"><code>spec</code></em> and stores the result in <em class="parameter"><code>dst</code></em>. <em class="parameter"><code>src</code></em> must contain exactly one frame of data and the frame is not checked for errors. </p> <div class="variablelist"><table border="0"> <col align="left" valign="top"> <tbody> <tr> <td><p><span class="term"><em class="parameter"><code>src</code></em> :</span></p></td> <td>a buffer containing the data to payload</td> </tr> <tr> <td><p><span class="term"><em class="parameter"><code>src_n</code></em> :</span></p></td> <td>size of <em class="parameter"><code>src</code></em> in bytes</td> </tr> <tr> <td><p><span class="term"><em class="parameter"><code>dst</code></em> :</span></p></td> <td>the destination buffer to store the payloaded contents in. Should not overlap with <em class="parameter"><code>src</code></em> </td> </tr> <tr> <td><p><span class="term"><em class="parameter"><code>dst_n</code></em> :</span></p></td> <td>size of <em class="parameter"><code>dst</code></em> in bytes</td> </tr> <tr> <td><p><span class="term"><em class="parameter"><code>spec</code></em> :</span></p></td> <td>the ringbufer spec for <em class="parameter"><code>src</code></em> </td> </tr> <tr> <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> <td>transfer-full: <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the payloading was successful, <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise.</td> </tr> </tbody> </table></div> <p class="since">Since 0.10.36</p> </div> </div> </div> <div class="footer"> <hr> Generated by GTK-Doc V1.18</div> </body> </html>