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<div class="refentry" title="IpatchSndFile">
<a name="IpatchSndFile"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="IpatchSndFile.top_of_page"></a>IpatchSndFile</span></h2>
<p>IpatchSndFile — libsndfile file object</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1" title="Stability Level">
<a name="IpatchSndFile.stability-level"></a><h2>Stability Level</h2>
Stable, unless otherwise indicated
</div>
<div class="refsynopsisdiv" title="Synopsis">
<a name="IpatchSndFile.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#define <a
href="../libinstpatch/IpatchSndFile.html#IPATCH-TYPE-SND-FILE-FORMAT--CAPS"
>IPATCH_TYPE_SND_FILE_FORMAT</a>
#define <a
href="../libinstpatch/IpatchSndFile.html#IPATCH-TYPE-SND-FILE-SUB-FORMAT--CAPS"
>IPATCH_TYPE_SND_FILE_SUB_FORMAT</a>
enum <a
href="../libinstpatch/IpatchSndFile.html#IpatchSndFileEndian"
>IpatchSndFileEndian</a>;
#define <a
href="../libinstpatch/IpatchSndFile.html#IPATCH-SND-FILE-DEFAULT-FORMAT--CAPS"
>IPATCH_SND_FILE_DEFAULT_FORMAT</a>
#define <a
href="../libinstpatch/IpatchSndFile.html#IPATCH-SND-FILE-DEFAULT-SUB-FORMAT--CAPS"
>IPATCH_SND_FILE_DEFAULT_SUB_FORMAT</a>
#define <a
href="../libinstpatch/IpatchSndFile.html#IPATCH-SND-FILE-DEFAULT-ENDIAN--CAPS"
>IPATCH_SND_FILE_DEFAULT_ENDIAN</a>
<a
href="../libinstpatch/IpatchSndFile.html#IpatchSndFile-struct"
>IpatchSndFile</a>;
<a
href="../libinstpatch/IpatchSndFile.html"
>IpatchSndFile</a> * <a
href="../libinstpatch/IpatchSndFile.html#ipatch-snd-file-new"
>ipatch_snd_file_new</a> (void);
<a
href="http://library.gnome.org/devel/gobject/unstable/gobject-Type-Information.html#GType"
>GType</a> <a
href="../libinstpatch/IpatchSndFile.html#ipatch-snd-file-format-get-type"
>ipatch_snd_file_format_get_type</a> (void);
<a
href="http://library.gnome.org/devel/gobject/unstable/gobject-Type-Information.html#GType"
>GType</a> <a
href="../libinstpatch/IpatchSndFile.html#ipatch-snd-file-sub-format-get-type"
>ipatch_snd_file_sub_format_get_type</a> (void);
int * <a
href="../libinstpatch/IpatchSndFile.html#ipatch-snd-file-format-get-sub-formats"
>ipatch_snd_file_format_get_sub_formats</a>
(int format,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> *size);
int <a
href="../libinstpatch/IpatchSndFile.html#ipatch-snd-file-sample-format-to-sub-format"
>ipatch_snd_file_sample_format_to_sub_format</a>
(int sample_format,
int file_format);
</pre>
</div>
<div class="refsect1" title="Object Hierarchy">
<a name="IpatchSndFile.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
<a
href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObject"
>GObject</a>
+----<a
href="../libinstpatch/IpatchItem.html"
>IpatchItem</a>
+----<a
href="../libinstpatch/IpatchFile.html"
>IpatchFile</a>
+----IpatchSndFile
</pre>
</div>
<div class="refsect1" title="Description">
<a name="IpatchSndFile.description"></a><h2>Description</h2>
<p>
Object type for libsndfile audio file identification.</p>
</div>
<div class="refsect1" title="Details">
<a name="IpatchSndFile.details"></a><h2>Details</h2>
<div class="refsect2" title="IPATCH_TYPE_SND_FILE_FORMAT">
<a name="IPATCH-TYPE-SND-FILE-FORMAT--CAPS"></a><h3>IPATCH_TYPE_SND_FILE_FORMAT</h3>
<pre class="programlisting">#define IPATCH_TYPE_SND_FILE_FORMAT</pre>
</div>
<hr>
<div class="refsect2" title="IPATCH_TYPE_SND_FILE_SUB_FORMAT">
<a name="IPATCH-TYPE-SND-FILE-SUB-FORMAT--CAPS"></a><h3>IPATCH_TYPE_SND_FILE_SUB_FORMAT</h3>
<pre class="programlisting">#define IPATCH_TYPE_SND_FILE_SUB_FORMAT</pre>
</div>
<hr>
<div class="refsect2" title="enum IpatchSndFileEndian">
<a name="IpatchSndFileEndian"></a><h3>enum IpatchSndFileEndian</h3>
<pre class="programlisting">typedef enum
{
IPATCH_SND_FILE_ENDIAN_FILE,
IPATCH_SND_FILE_ENDIAN_LITTLE,
IPATCH_SND_FILE_ENDIAN_BIG,
IPATCH_SND_FILE_ENDIAN_CPU
} IpatchSndFileEndian;
</pre>
<p>
Endian byte order libsndfile enum.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><a name="IPATCH-SND-FILE-ENDIAN-FILE--CAPS"></a><span class="term"><code class="literal">IPATCH_SND_FILE_ENDIAN_FILE</code></span></p></td>
<td> Use the default endian for the file format
</td>
</tr>
<tr>
<td><p><a name="IPATCH-SND-FILE-ENDIAN-LITTLE--CAPS"></a><span class="term"><code class="literal">IPATCH_SND_FILE_ENDIAN_LITTLE</code></span></p></td>
<td> Little endian byte order
</td>
</tr>
<tr>
<td><p><a name="IPATCH-SND-FILE-ENDIAN-BIG--CAPS"></a><span class="term"><code class="literal">IPATCH_SND_FILE_ENDIAN_BIG</code></span></p></td>
<td> Big endian byte order
</td>
</tr>
<tr>
<td><p><a name="IPATCH-SND-FILE-ENDIAN-CPU--CAPS"></a><span class="term"><code class="literal">IPATCH_SND_FILE_ENDIAN_CPU</code></span></p></td>
<td> Native CPU byte order
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="IPATCH_SND_FILE_DEFAULT_FORMAT">
<a name="IPATCH-SND-FILE-DEFAULT-FORMAT--CAPS"></a><h3>IPATCH_SND_FILE_DEFAULT_FORMAT</h3>
<pre class="programlisting">#define IPATCH_SND_FILE_DEFAULT_FORMAT SF_FORMAT_WAV
</pre>
<p>
Default file format enum for <a
href="../libinstpatch/IpatchSndFile.html#IPATCH-TYPE-SND-FILE-FORMAT--CAPS"
><span class="type">IPATCH_TYPE_SND_FILE_FORMAT</span></a>.</p>
</div>
<hr>
<div class="refsect2" title="IPATCH_SND_FILE_DEFAULT_SUB_FORMAT">
<a name="IPATCH-SND-FILE-DEFAULT-SUB-FORMAT--CAPS"></a><h3>IPATCH_SND_FILE_DEFAULT_SUB_FORMAT</h3>
<pre class="programlisting">#define IPATCH_SND_FILE_DEFAULT_SUB_FORMAT SF_FORMAT_PCM_16
</pre>
<p>
Default file sub format enum for <a
href="../libinstpatch/IpatchSndFile.html#IPATCH-TYPE-SND-FILE-SUB-FORMAT--CAPS"
><span class="type">IPATCH_TYPE_SND_FILE_SUB_FORMAT</span></a>.</p>
</div>
<hr>
<div class="refsect2" title="IPATCH_SND_FILE_DEFAULT_ENDIAN">
<a name="IPATCH-SND-FILE-DEFAULT-ENDIAN--CAPS"></a><h3>IPATCH_SND_FILE_DEFAULT_ENDIAN</h3>
<pre class="programlisting">#define IPATCH_SND_FILE_DEFAULT_ENDIAN IPATCH_SND_FILE_ENDIAN_FILE
</pre>
<p>
Default endian byte order from enum <span class="type">IPATCH_TYPE_SND_FILE_ENDIAN</span>.</p>
</div>
<hr>
<div class="refsect2" title="IpatchSndFile">
<a name="IpatchSndFile-struct"></a><h3>IpatchSndFile</h3>
<pre class="programlisting">typedef struct _IpatchSndFile IpatchSndFile;</pre>
</div>
<hr>
<div class="refsect2" title="ipatch_snd_file_new ()">
<a name="ipatch-snd-file-new"></a><h3>ipatch_snd_file_new ()</h3>
<pre class="programlisting"><a
href="../libinstpatch/IpatchSndFile.html"
>IpatchSndFile</a> * ipatch_snd_file_new (void);</pre>
<p>
Create a new libsndfile file object.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> New libsndfile file object (derived from IpatchFile) with a
reference count of 1. Caller owns the reference and removing it will
destroy the item.
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_snd_file_format_get_type ()">
<a name="ipatch-snd-file-format-get-type"></a><h3>ipatch_snd_file_format_get_type ()</h3>
<pre class="programlisting"><a
href="http://library.gnome.org/devel/gobject/unstable/gobject-Type-Information.html#GType"
>GType</a> ipatch_snd_file_format_get_type (void);</pre>
</div>
<hr>
<div class="refsect2" title="ipatch_snd_file_sub_format_get_type ()">
<a name="ipatch-snd-file-sub-format-get-type"></a><h3>ipatch_snd_file_sub_format_get_type ()</h3>
<pre class="programlisting"><a
href="http://library.gnome.org/devel/gobject/unstable/gobject-Type-Information.html#GType"
>GType</a> ipatch_snd_file_sub_format_get_type (void);</pre>
</div>
<hr>
<div class="refsect2" title="ipatch_snd_file_format_get_sub_formats ()">
<a name="ipatch-snd-file-format-get-sub-formats"></a><h3>ipatch_snd_file_format_get_sub_formats ()</h3>
<pre class="programlisting">int * ipatch_snd_file_format_get_sub_formats
(int format,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> *size);</pre>
<p>
Get supported sub formats of a given libsndfile format.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td> "IpatchSndFileFormat" GEnum to get sub formats of
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>size</code></em> :</span></p></td>
<td> Location to store size of returned sub formats array
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> Newly allocated list of sub format enum values or <code class="literal">NULL</code> if <em class="parameter"><code>format</code></em>
is invalid
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_snd_file_sample_format_to_sub_format ()">
<a name="ipatch-snd-file-sample-format-to-sub-format"></a><h3>ipatch_snd_file_sample_format_to_sub_format ()</h3>
<pre class="programlisting">int ipatch_snd_file_sample_format_to_sub_format
(int sample_format,
int file_format);</pre>
<p>
Get the optimal libsndfile sub format for a libinstpatch sample format. The
returned value may not be an exact equivalent, in the case of unsigned
sample data with bit widths greater than 8, but will return the optimal
format in those cases. If <em class="parameter"><code>file_format</code></em> is not -1 then the resulting sub
format is guaranteed to be valid for it.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>sample_format</code></em> :</span></p></td>
<td> libinstpatch sample format (see <span class="type">sample</span>)
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>file_format</code></em> :</span></p></td>
<td> libsndfile format GEnum "IpatchSndFileFormat" value or -1 to
not limit sub formats to a given file format.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> Optimal libsndfile sub format enum value or -1 on error (invalid
<em class="parameter"><code>sample_format</code></em>).
</td>
</tr>
</tbody>
</table></div>
</div>
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