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<div class="refentry" title="IpatchSample">
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<h2><span class="refentrytitle"><a name="IpatchSample.top_of_page"></a>IpatchSample</span></h2>
<p>IpatchSample — Sample audio interface</p>
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<div class="refsect1" title="Stability Level">
<a name="IpatchSample.stability-level"></a><h2>Stability Level</h2>
Stable, unless otherwise indicated
</div>
<div class="refsynopsisdiv" title="Synopsis">
<a name="IpatchSample.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
<a
href="../libinstpatch/IpatchSample.html#IpatchSample-struct"
>IpatchSample</a>;
<a
href="../libinstpatch/IpatchSample.html#IpatchSampleIface"
>IpatchSampleIface</a>;
<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a>;
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandleOpenFunc"
>*IpatchSampleHandleOpenFunc</a>) (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);
void (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandleCloseFunc"
>*IpatchSampleHandleCloseFunc</a>) (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle);
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandleReadFunc"
>*IpatchSampleHandleReadFunc</a>) (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> offset,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> frames,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"
>gpointer</a> buf,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandleWriteFunc"
>*IpatchSampleHandleWriteFunc</a>) (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> offset,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> frames,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gconstpointer"
>gconstpointer</a> buf,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);
enum <a
href="../libinstpatch/IpatchSample.html#IpatchSampleLoopType"
>IpatchSampleLoopType</a>;
#define <a
href="../libinstpatch/IpatchSample.html#IPATCH-SAMPLE-FORMAT-DEFAULT--CAPS"
>IPATCH_SAMPLE_FORMAT_DEFAULT</a>
#define <a
href="../libinstpatch/IpatchSample.html#IPATCH-SAMPLE-RATE-MIN--CAPS"
>IPATCH_SAMPLE_RATE_MIN</a>
#define <a
href="../libinstpatch/IpatchSample.html#IPATCH-SAMPLE-RATE-MAX--CAPS"
>IPATCH_SAMPLE_RATE_MAX</a>
#define <a
href="../libinstpatch/IpatchSample.html#IPATCH-SAMPLE-RATE-DEFAULT--CAPS"
>IPATCH_SAMPLE_RATE_DEFAULT</a>
#define <a
href="../libinstpatch/IpatchSample.html#IPATCH-SAMPLE-ROOT-NOTE-DEFAULT--CAPS"
>IPATCH_SAMPLE_ROOT_NOTE_DEFAULT</a>
#define <a
href="../libinstpatch/IpatchSample.html#IPATCH-SAMPLE-LOOP-TYPE-TERM--CAPS"
>IPATCH_SAMPLE_LOOP_TYPE_TERM</a>
#define <a
href="../libinstpatch/IpatchSample.html#IPATCH-SAMPLE-HANDLE-FORMAT--CAPS"
>IPATCH_SAMPLE_HANDLE_FORMAT</a> (handle)
int * <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-get-loop-types"
>ipatch_sample_get_loop_types</a> (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample);
int * <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-type-get-loop-types"
>ipatch_sample_type_get_loop_types</a> (<a
href="http://library.gnome.org/devel/gobject/unstable/gobject-Type-Information.html#GType"
>GType</a> type);
void <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-set-format"
>ipatch_sample_set_format</a> (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample,
int format);
int <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-get-format"
>ipatch_sample_get_format</a> (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample);
void <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-set-size"
>ipatch_sample_set_size</a> (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> size);
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-get-size"
>ipatch_sample_get_size</a> (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> *bytes);
int <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-get-frame-size"
>ipatch_sample_get_frame_size</a> (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample);
<a
href="../libinstpatch/IpatchSampleData.html"
>IpatchSampleData</a> * <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-get-sample-data"
>ipatch_sample_get_sample_data</a> (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample);
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-set-sample-data"
>ipatch_sample_set_sample_data</a> (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample,
<a
href="../libinstpatch/IpatchSampleData.html"
>IpatchSampleData</a> *sampledata);
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-read"
>ipatch_sample_read</a> (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> offset,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> frames,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"
>gpointer</a> buf,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-write"
>ipatch_sample_write</a> (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> offset,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> frames,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gconstpointer"
>gconstpointer</a> buf,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-read-transform"
>ipatch_sample_read_transform</a> (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> offset,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> frames,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"
>gpointer</a> buf,
int format,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"
>guint32</a> channel_map,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-write-transform"
>ipatch_sample_write_transform</a> (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> offset,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> frames,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gconstpointer"
>gconstpointer</a> buf,
int format,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"
>guint32</a> channel_map,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-copy"
>ipatch_sample_copy</a> (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *dest_sample,
<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *src_sample,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"
>guint32</a> channel_map,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-save-to-file"
>ipatch_sample_save_to_file</a> (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample,
const char *filename,
int file_format,
int sub_format,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-handle-open"
>ipatch_sample_handle_open</a> (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample,
<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle,
char mode,
int format,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"
>guint32</a> channel_map,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);
void <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-handle-close"
>ipatch_sample_handle_close</a> (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle);
<a
href="../libinstpatch/libinstpatch-IpatchSampleTransform.html#IpatchSampleTransform"
>IpatchSampleTransform</a> * <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-handle-get-transform"
>ipatch_sample_handle_get_transform</a>
(<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle);
void <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-handle-set-transform"
>ipatch_sample_handle_set_transform</a> (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle,
<a
href="../libinstpatch/libinstpatch-IpatchSampleTransform.html#IpatchSampleTransform"
>IpatchSampleTransform</a> *transform);
int <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-handle-get-format"
>ipatch_sample_handle_get_format</a> (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle);
int <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-handle-get-frame-size"
>ipatch_sample_handle_get_frame_size</a> (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle);
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-handle-get-max-frames"
>ipatch_sample_handle_get_max_frames</a> (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle);
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"
>gpointer</a> <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-handle-read"
>ipatch_sample_handle_read</a> (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> offset,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> frames,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"
>gpointer</a> buf,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-handle-write"
>ipatch_sample_handle_write</a> (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> offset,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> frames,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gconstpointer"
>gconstpointer</a> buf,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-handle-cascade-open"
>ipatch_sample_handle_cascade_open</a> (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle,
<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);
<a
href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"
>GParamSpec</a> * <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-install-property"
>ipatch_sample_install_property</a> (<a
href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObjectClass"
>GObjectClass</a> *oclass,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> property_id,
const char *property_name);
<a
href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"
>GParamSpec</a> * <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-install-property-readonly"
>ipatch_sample_install_property_readonly</a>
(<a
href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObjectClass"
>GObjectClass</a> *oclass,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> property_id,
const char *property_name);
<a
href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"
>GParamSpec</a> * <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-new-property-param-spec"
>ipatch_sample_new_property_param_spec</a>
(const char *property_name,
<a
href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamFlags"
>GParamFlags</a> flags);
</pre>
</div>
<div class="refsect1" title="Object Hierarchy">
<a name="IpatchSample.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
GInterface
+----IpatchSample
</pre>
</div>
<div class="refsect1" title="Prerequisites">
<a name="IpatchSample.prerequisites"></a><h2>Prerequisites</h2>
<p>
IpatchSample requires
<a
href="../libinstpatch/IpatchItem.html"
>IpatchItem</a>.</p>
</div>
<div class="refsect1" title="Known Implementations">
<a name="IpatchSample.implementations"></a><h2>Known Implementations</h2>
<p>
IpatchSample is implemented by
<a
href="../libinstpatch/IpatchSampleStoreCache.html"
>IpatchSampleStoreCache</a>, <a
href="../libinstpatch/IpatchSampleStoreRom.html"
>IpatchSampleStoreRom</a>, <a
href="../libinstpatch/IpatchGigSample.html"
>IpatchGigSample</a>, <a
href="../libinstpatch/IpatchSampleStoreSplit24.html"
>IpatchSampleStoreSplit24</a>, <a
href="../libinstpatch/IpatchDLS2Region.html"
>IpatchDLS2Region</a>, <a
href="../libinstpatch/IpatchSampleStoreRam.html"
>IpatchSampleStoreRam</a>, <a
href="../libinstpatch/IpatchSampleStore.html"
>IpatchSampleStore</a>, <a
href="../libinstpatch/IpatchSampleStoreFile.html"
>IpatchSampleStoreFile</a>, <a
href="../libinstpatch/IpatchSampleData.html"
>IpatchSampleData</a>, <a
href="../libinstpatch/IpatchDLS2Sample.html"
>IpatchDLS2Sample</a>, <a
href="../libinstpatch/IpatchGigSubRegion.html"
>IpatchGigSubRegion</a>, <a
href="../libinstpatch/IpatchSampleStoreSwap.html"
>IpatchSampleStoreSwap</a>, <a
href="../libinstpatch/IpatchSF2IZone.html"
>IpatchSF2IZone</a>, <a
href="../libinstpatch/IpatchSampleStoreSndFile.html"
>IpatchSampleStoreSndFile</a>, <a
href="../libinstpatch/IpatchSampleStoreVirtual.html"
>IpatchSampleStoreVirtual</a> and <a
href="../libinstpatch/IpatchSF2Sample.html"
>IpatchSF2Sample</a>.</p>
</div>
<div class="refsect1" title="Properties">
<a name="IpatchSample.properties"></a><h2>Properties</h2>
<pre class="synopsis">
"<a
href="../libinstpatch/IpatchSample.html#IpatchSample--fine-tune"
>fine-tune</a>" <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"
>gint</a> : Read
"<a
href="../libinstpatch/IpatchSample.html#IpatchSample--loop-end"
>loop-end</a>" <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> : Read
"<a
href="../libinstpatch/IpatchSample.html#IpatchSample--loop-start"
>loop-start</a>" <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> : Read
"<a
href="../libinstpatch/IpatchSample.html#IpatchSample--loop-type"
>loop-type</a>" <a
href="../libinstpatch/IpatchSample.html#IpatchSampleLoopType"
>IpatchSampleLoopType</a> : Read
"<a
href="../libinstpatch/IpatchSample.html#IpatchSample--root-note"
>root-note</a>" <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"
>gint</a> : Read
"<a
href="../libinstpatch/IpatchSample.html#IpatchSample--sample-data"
>sample-data</a>" <a
href="../libinstpatch/IpatchSampleData.html"
>IpatchSampleData</a>* : Read
"<a
href="../libinstpatch/IpatchSample.html#IpatchSample--sample-format"
>sample-format</a>" <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"
>gint</a> : Read
"<a
href="../libinstpatch/IpatchSample.html#IpatchSample--sample-rate"
>sample-rate</a>" <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"
>gint</a> : Read
"<a
href="../libinstpatch/IpatchSample.html#IpatchSample--sample-size"
>sample-size</a>" <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> : Read
</pre>
</div>
<div class="refsect1" title="Description">
<a name="IpatchSample.description"></a><h2>Description</h2>
<p>
This interface provides a basic API for accessing audio of sample objects.</p>
</div>
<div class="refsect1" title="Details">
<a name="IpatchSample.details"></a><h2>Details</h2>
<div class="refsect2" title="IpatchSample">
<a name="IpatchSample-struct"></a><h3>IpatchSample</h3>
<pre class="programlisting">typedef struct _IpatchSample IpatchSample;</pre>
</div>
<hr>
<div class="refsect2" title="IpatchSampleIface">
<a name="IpatchSampleIface"></a><h3>IpatchSampleIface</h3>
<pre class="programlisting">typedef struct {
GTypeInterface parent_class;
IpatchSampleHandleOpenFunc open;
IpatchSampleHandleCloseFunc close;
IpatchSampleHandleReadFunc read;
IpatchSampleHandleWriteFunc write;
int *loop_types; /* -1 terminated array of supp. loop types (NULL = none) */
} IpatchSampleIface;
</pre>
</div>
<hr>
<div class="refsect2" title="IpatchSampleHandle">
<a name="IpatchSampleHandle"></a><h3>IpatchSampleHandle</h3>
<pre class="programlisting">typedef struct {
IpatchSample *sample; /* The sample which this handle applies to */
IpatchSampleTransform *transform; /* Set if sample is being converted */
IpatchSampleHandleReadFunc read; /* Read method pointer (copied from IpatchItem interface) */
IpatchSampleHandleWriteFunc write; /* Write method pointer (copied from IpatchItem interface) */
IpatchSampleHandleCloseFunc close; /* Write method pointer (copied from IpatchItem interface) */
guint32 read_mode : 1; /* TRUE if read mode, FALSE if write mode */
guint32 manual_transform : 1; /* Methods handle sample transform */
guint32 release_transform : 1; /* TRUE if transform should be released from transform pool */
guint32 format : 12; /* Format to transform to */
guint32 reserved : 17;
guint32 channel_map; /* Channel map for multi-channel audio transform */
gpointer data1; /* sample interface defined */
gpointer data2; /* sample interface defined */
gpointer data3; /* sample interface defined */
gpointer data4; /* sample interface defined */
guint32 reserved2;
} IpatchSampleHandle;
</pre>
</div>
<hr>
<div class="refsect2" title="IpatchSampleHandleOpenFunc ()">
<a name="IpatchSampleHandleOpenFunc"></a><h3>IpatchSampleHandleOpenFunc ()</h3>
<pre class="programlisting"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> (*IpatchSampleHandleOpenFunc) (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);</pre>
<p>
<a
href="../libinstpatch/IpatchSample.html"
><span class="type">IpatchSample</span></a> interface method function type to open a sample for reading
or writing. This method is optional for an <a
href="../libinstpatch/IpatchSample.html"
><span class="type">IpatchSample</span></a> interface and if
not specified then it is assumed that the open was successful and nothing
additional need be done. All fields of <em class="parameter"><code>handle</code></em> structure are already
initialized, except <em class="structfield"><code>data1</code></em>,
<em class="structfield"><code>data2</code></em> and <em class="structfield"><code>data3</code></em>
which are available for the interface implementation.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>handle</code></em> :</span></p></td>
<td> Caller supplied structure to initialize
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>err</code></em> :</span></p></td>
<td> Location to store error information
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <code class="literal">TRUE</code> on success, <code class="literal">FALSE</code> otherwise (in which case an error should
optionally be stored in <em class="parameter"><code>err</code></em>).
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="IpatchSampleHandleCloseFunc ()">
<a name="IpatchSampleHandleCloseFunc"></a><h3>IpatchSampleHandleCloseFunc ()</h3>
<pre class="programlisting">void (*IpatchSampleHandleCloseFunc) (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle);</pre>
<p>
<a
href="../libinstpatch/IpatchSample.html"
><span class="type">IpatchSample</span></a> interface method to free any resources allocated in
<span class="type">IpatchSampleOpenFunc</span> to <em class="parameter"><code>handle</code></em>. This method is optional for an
<a
href="../libinstpatch/IpatchSample.html"
><span class="type">IpatchSample</span></a> interface and need not be specified if nothing needs to be done
to release any resources allocated by <a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandleOpenFunc"
><span class="type">IpatchSampleHandleOpenFunc</span></a>.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>handle</code></em> :</span></p></td>
<td> Sample handle to close (as returned from <a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandleOpenFunc"
><span class="type">IpatchSampleHandleOpenFunc</span></a>)
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="IpatchSampleHandleReadFunc ()">
<a name="IpatchSampleHandleReadFunc"></a><h3>IpatchSampleHandleReadFunc ()</h3>
<pre class="programlisting"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> (*IpatchSampleHandleReadFunc) (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> offset,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> frames,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"
>gpointer</a> buf,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);</pre>
<p>
<a
href="../libinstpatch/IpatchSample.html"
><span class="type">IpatchSample</span></a> interface method function type to read data from a
sample handle. Can be <code class="literal">NULL</code> in <a
href="../libinstpatch/IpatchSample.html#IpatchSampleIface"
><span class="type">IpatchSampleIface</span></a> if sample data is not
readable. Sample data should be stored in its native format.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>handle</code></em> :</span></p></td>
<td> Handle to read from (as returned from <span class="type">IpatchSampleOpenFunc</span>)
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>offset</code></em> :</span></p></td>
<td> Offset in sample to start read from (in frames), use
<span class="type">IPATCH_SAMPLE_CUROFS</span> to use current offset (starts at 0 if not specified)
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>frames</code></em> :</span></p></td>
<td> Size of sample data to read (in frames)
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buf</code></em> :</span></p></td>
<td> Buffer to store sample data in
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>err</code></em> :</span></p></td>
<td> Location to store error information
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> Should return <code class="literal">TRUE</code> on success, <code class="literal">FALSE</code> otherwise (in which case
an error should optionally be stored in <em class="parameter"><code>err</code></em>).
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="IpatchSampleHandleWriteFunc ()">
<a name="IpatchSampleHandleWriteFunc"></a><h3>IpatchSampleHandleWriteFunc ()</h3>
<pre class="programlisting"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> (*IpatchSampleHandleWriteFunc) (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> offset,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> frames,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gconstpointer"
>gconstpointer</a> buf,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);</pre>
<p>
<a
href="../libinstpatch/IpatchSample.html"
><span class="type">IpatchSample</span></a> interface method function type to write data to a
sample handle. Can be <code class="literal">NULL</code> in <a
href="../libinstpatch/IpatchSample.html#IpatchSampleIface"
><span class="type">IpatchSampleIface</span></a> if sample data is not
writable. Sample data will be supplied in its native format.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>handle</code></em> :</span></p></td>
<td> Handle to write to (as returned from <span class="type">IpatchSampleOpenFunc</span>)
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>offset</code></em> :</span></p></td>
<td> Offset in sample to start write to (in frames), use
<span class="type">IPATCH_SAMPLE_CUROFS</span> to use current offset (starts at 0 if not specified)
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>frames</code></em> :</span></p></td>
<td> Size of sample data to write (in frames)
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buf</code></em> :</span></p></td>
<td> Buffer to store sample data in
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>err</code></em> :</span></p></td>
<td> Location to store error information
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> Should return <code class="literal">TRUE</code> on success, <code class="literal">FALSE</code> otherwise (in which case
an error should optionally be stored in <em class="parameter"><code>err</code></em>).
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="enum IpatchSampleLoopType">
<a name="IpatchSampleLoopType"></a><h3>enum IpatchSampleLoopType</h3>
<pre class="programlisting">typedef enum
{
IPATCH_SAMPLE_LOOP_NONE,
IPATCH_SAMPLE_LOOP_STANDARD,
IPATCH_SAMPLE_LOOP_RELEASE,
IPATCH_SAMPLE_LOOP_PINGPONG
} IpatchSampleLoopType;
</pre>
<p>
Sample looping type.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><a name="IPATCH-SAMPLE-LOOP-NONE--CAPS"></a><span class="term"><code class="literal">IPATCH_SAMPLE_LOOP_NONE</code></span></p></td>
<td> No loop.
</td>
</tr>
<tr>
<td><p><a name="IPATCH-SAMPLE-LOOP-STANDARD--CAPS"></a><span class="term"><code class="literal">IPATCH_SAMPLE_LOOP_STANDARD</code></span></p></td>
<td> Standard loop.
</td>
</tr>
<tr>
<td><p><a name="IPATCH-SAMPLE-LOOP-RELEASE--CAPS"></a><span class="term"><code class="literal">IPATCH_SAMPLE_LOOP_RELEASE</code></span></p></td>
<td> Loop till note release stage.
</td>
</tr>
<tr>
<td><p><a name="IPATCH-SAMPLE-LOOP-PINGPONG--CAPS"></a><span class="term"><code class="literal">IPATCH_SAMPLE_LOOP_PINGPONG</code></span></p></td>
<td> Play forward and then in reverse continously.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="IPATCH_SAMPLE_FORMAT_DEFAULT">
<a name="IPATCH-SAMPLE-FORMAT-DEFAULT--CAPS"></a><h3>IPATCH_SAMPLE_FORMAT_DEFAULT</h3>
<pre class="programlisting">#define IPATCH_SAMPLE_FORMAT_DEFAULT</pre>
<p>
Default sample format for <a
href="../libinstpatch/IpatchSample.html"
><span class="type">IpatchSample</span></a> interface.</p>
</div>
<hr>
<div class="refsect2" title="IPATCH_SAMPLE_RATE_MIN">
<a name="IPATCH-SAMPLE-RATE-MIN--CAPS"></a><h3>IPATCH_SAMPLE_RATE_MIN</h3>
<pre class="programlisting">#define IPATCH_SAMPLE_RATE_MIN 8000
</pre>
<p>
Minimum sample rate.</p>
</div>
<hr>
<div class="refsect2" title="IPATCH_SAMPLE_RATE_MAX">
<a name="IPATCH-SAMPLE-RATE-MAX--CAPS"></a><h3>IPATCH_SAMPLE_RATE_MAX</h3>
<pre class="programlisting">#define IPATCH_SAMPLE_RATE_MAX 192000
</pre>
<p>
Maximum sample rate.</p>
</div>
<hr>
<div class="refsect2" title="IPATCH_SAMPLE_RATE_DEFAULT">
<a name="IPATCH-SAMPLE-RATE-DEFAULT--CAPS"></a><h3>IPATCH_SAMPLE_RATE_DEFAULT</h3>
<pre class="programlisting">#define IPATCH_SAMPLE_RATE_DEFAULT 44100
</pre>
<p>
Default sample rate.</p>
</div>
<hr>
<div class="refsect2" title="IPATCH_SAMPLE_ROOT_NOTE_DEFAULT">
<a name="IPATCH-SAMPLE-ROOT-NOTE-DEFAULT--CAPS"></a><h3>IPATCH_SAMPLE_ROOT_NOTE_DEFAULT</h3>
<pre class="programlisting">#define IPATCH_SAMPLE_ROOT_NOTE_DEFAULT 60
</pre>
<p>
Default root note.</p>
</div>
<hr>
<div class="refsect2" title="IPATCH_SAMPLE_LOOP_TYPE_TERM">
<a name="IPATCH-SAMPLE-LOOP-TYPE-TERM--CAPS"></a><h3>IPATCH_SAMPLE_LOOP_TYPE_TERM</h3>
<pre class="programlisting">#define IPATCH_SAMPLE_LOOP_TYPE_TERM (-1)
</pre>
<p>
Value used for terminating list of supported loop types.</p>
</div>
<hr>
<div class="refsect2" title="IPATCH_SAMPLE_HANDLE_FORMAT()">
<a name="IPATCH-SAMPLE-HANDLE-FORMAT--CAPS"></a><h3>IPATCH_SAMPLE_HANDLE_FORMAT()</h3>
<pre class="programlisting">#define IPATCH_SAMPLE_HANDLE_FORMAT(handle) ((handle)->format)
</pre>
<p>
Macro to access transform sample format of a sample handle.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>handle</code></em> :</span></p></td>
<td> Sample handle
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> Sample transform format.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_get_loop_types ()">
<a name="ipatch-sample-get-loop-types"></a><h3>ipatch_sample_get_loop_types ()</h3>
<pre class="programlisting">int * ipatch_sample_get_loop_types (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample);</pre>
<p>
Get an array of supported loop type enums for a sample object.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>sample</code></em> :</span></p></td>
<td> Object with <a
href="../libinstpatch/IpatchSample.html"
><span class="type">IpatchSample</span></a> interface
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> -1 terminated array of <a
href="../libinstpatch/IpatchSample.html#IpatchSampleLoopType"
><span class="type">IpatchSampleLoopType</span></a> values. If no loop
types are supported, then <code class="literal">NULL</code> is returned. Array is internal and should
not be modified or freed.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_type_get_loop_types ()">
<a name="ipatch-sample-type-get-loop-types"></a><h3>ipatch_sample_type_get_loop_types ()</h3>
<pre class="programlisting">int * ipatch_sample_type_get_loop_types (<a
href="http://library.gnome.org/devel/gobject/unstable/gobject-Type-Information.html#GType"
>GType</a> type);</pre>
<p>
Like <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-get-loop-types"
><code class="function">ipatch_sample_get_loop_types()</code></a> but retrieves the supported loop types
from an object type rather than an instance of an object.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>type</code></em> :</span></p></td>
<td> A GType that has a <a
href="../libinstpatch/IpatchItem.html"
><span class="type">IpatchItem</span></a> interface
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> -1 terminated array of <a
href="../libinstpatch/IpatchSample.html#IpatchSampleLoopType"
><span class="type">IpatchSampleLoopType</span></a> values. If no loop
types are supported, then <code class="literal">NULL</code> is returned. Array is internal and should
not be modified or freed.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_set_format ()">
<a name="ipatch-sample-set-format"></a><h3>ipatch_sample_set_format ()</h3>
<pre class="programlisting">void ipatch_sample_set_format (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample,
int format);</pre>
<p>
Set sample format of a new sample. Should only be assigned once. Same as
assigning to a sample's "sample-format" property.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>sample</code></em> :</span></p></td>
<td> Sample to set format of
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td> Sample format to assign to sample (see <a
href="../libinstpatch/libinstpatch-sample.html#IpatchSampleWidth"
><span class="type">IpatchSampleWidth</span></a>, etc)
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_get_format ()">
<a name="ipatch-sample-get-format"></a><h3>ipatch_sample_get_format ()</h3>
<pre class="programlisting">int ipatch_sample_get_format (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample);</pre>
<p>
Get the sample format of a sample. Same as getting a sample's "sample-format"
property.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>sample</code></em> :</span></p></td>
<td> Sample to get format of
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> Sample format integer (see <a
href="../libinstpatch/libinstpatch-sample.html#IpatchSampleWidth"
><span class="type">IpatchSampleWidth</span></a>, etc).
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_set_size ()">
<a name="ipatch-sample-set-size"></a><h3>ipatch_sample_set_size ()</h3>
<pre class="programlisting">void ipatch_sample_set_size (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> size);</pre>
<p>
Set the size of a sample. Should be done once, and only once when created.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>sample</code></em> :</span></p></td>
<td> Sample to set size of
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>size</code></em> :</span></p></td>
<td> Size to assign (in frames)
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_get_size ()">
<a name="ipatch-sample-get-size"></a><h3>ipatch_sample_get_size ()</h3>
<pre class="programlisting"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> ipatch_sample_get_size (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> *bytes);</pre>
<p>
Get the size of a sample. Same as getting a sample's "sample-size"
property.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>sample</code></em> :</span></p></td>
<td> Sample to get size of
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>bytes</code></em> :</span></p></td>
<td> Location to store sample size in bytes (size * frame size) or NULL
to ignore
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> Sample size (in frames)
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_get_frame_size ()">
<a name="ipatch-sample-get-frame-size"></a><h3>ipatch_sample_get_frame_size ()</h3>
<pre class="programlisting">int ipatch_sample_get_frame_size (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample);</pre>
<p>
A convenience function to get size of a single sample frame for a given
<em class="parameter"><code>sample</code></em>. This is useful for determining buffer allocation sizes when
reading or writing data.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>sample</code></em> :</span></p></td>
<td> Sample to get data frame size of
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> Size in bytes of a single sample frame
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_get_sample_data ()">
<a name="ipatch-sample-get-sample-data"></a><h3>ipatch_sample_get_sample_data ()</h3>
<pre class="programlisting"><a
href="../libinstpatch/IpatchSampleData.html"
>IpatchSampleData</a> * ipatch_sample_get_sample_data (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample);</pre>
<p>
Get sample data object from a sample. Not every sample object supports this
property, in which case <code class="literal">NULL</code> is returned.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>sample</code></em> :</span></p></td>
<td> Sample to get sample data from
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> Sample data object of the sample or <code class="literal">NULL</code> if not set or unsupported
by this sample type. Caller owns a reference to the returned object.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_set_sample_data ()">
<a name="ipatch-sample-set-sample-data"></a><h3>ipatch_sample_set_sample_data ()</h3>
<pre class="programlisting"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> ipatch_sample_set_sample_data (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample,
<a
href="../libinstpatch/IpatchSampleData.html"
>IpatchSampleData</a> *sampledata);</pre>
<p>
Set sample data object of a sample. Not every sample object supports writing
to this property, in which case <code class="literal">FALSE</code> will be returned.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>sample</code></em> :</span></p></td>
<td> Sample to set sample data of
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <code class="literal">TRUE</code> if the sample supports this property and it was assigned,
<code class="literal">FALSE</code> otherwise.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_read ()">
<a name="ipatch-sample-read"></a><h3>ipatch_sample_read ()</h3>
<pre class="programlisting"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> ipatch_sample_read (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> offset,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> frames,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"
>gpointer</a> buf,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);</pre>
<p>
Read sample data from a sample. This is a convenience function which
opens/reads/closes a <a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
><span class="type">IpatchSampleHandle</span></a> and is therefore not as efficient
when making multiple accesses. Sample data transform
is also not handled (see <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-read-transform"
><code class="function">ipatch_sample_read_transform()</code></a>).</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>sample</code></em> :</span></p></td>
<td> Sample to read from
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>offset</code></em> :</span></p></td>
<td> Offset in frames to read from
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>frames</code></em> :</span></p></td>
<td> Number of frames to read
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buf</code></em> :</span></p></td>
<td> Buffer to store sample data in (should be at least <em class="parameter"><code>frames</code></em> *
sizeof (frame), the frame size can be had from
<a
href="../libinstpatch/IpatchSample.html#ipatch-sample-get-frame-size"
><code class="function">ipatch_sample_get_frame_size()</code></a>).
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>err</code></em> :</span></p></td>
<td> Location to store error info or <code class="literal">NULL</code>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <code class="literal">TRUE</code> on success, <code class="literal">FALSE</code> on error (in which case
<em class="parameter"><code>err</code></em> may be set).
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_write ()">
<a name="ipatch-sample-write"></a><h3>ipatch_sample_write ()</h3>
<pre class="programlisting"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> ipatch_sample_write (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> offset,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> frames,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gconstpointer"
>gconstpointer</a> buf,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);</pre>
<p>
Write sample data to a sample. This is a convenience function which
opens/writes/closes a <a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
><span class="type">IpatchSampleHandle</span></a> and is therefore not as efficient
when making multiple accesses. Sample data transform
is also not handled (see <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-write-transform"
><code class="function">ipatch_sample_write_transform()</code></a>).</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>sample</code></em> :</span></p></td>
<td> Sample to write to
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>offset</code></em> :</span></p></td>
<td> Offset in frames to write to
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>frames</code></em> :</span></p></td>
<td> Number of frames to write
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buf</code></em> :</span></p></td>
<td> Buffer of sample data to write (should be at least <em class="parameter"><code>frames</code></em> *
sizeof (frame), the frame size can be had from
<a
href="../libinstpatch/IpatchSample.html#ipatch-sample-get-frame-size"
><code class="function">ipatch_sample_get_frame_size()</code></a>).
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>err</code></em> :</span></p></td>
<td> Location to store error info or <code class="literal">NULL</code>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <code class="literal">TRUE</code> on success, <code class="literal">FALSE</code> otherwise (in which case <em class="parameter"><code>err</code></em> may be set).
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_read_transform ()">
<a name="ipatch-sample-read-transform"></a><h3>ipatch_sample_read_transform ()</h3>
<pre class="programlisting"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> ipatch_sample_read_transform (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> offset,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> frames,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"
>gpointer</a> buf,
int format,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"
>guint32</a> channel_map,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);</pre>
<p>
Like <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-read"
><code class="function">ipatch_sample_read()</code></a> but allows for sample transformation.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>sample</code></em> :</span></p></td>
<td> Sample to read from
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>offset</code></em> :</span></p></td>
<td> Offset in frames to read from
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>frames</code></em> :</span></p></td>
<td> Number of frames to read
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buf</code></em> :</span></p></td>
<td> Buffer to store sample data in (should be at least <em class="parameter"><code>frames</code></em> *
<a
href="../libinstpatch/libinstpatch-sample.html#ipatch-sample-format-size"
><code class="function">ipatch_sample_format_size()</code></a> of <em class="parameter"><code>format</code></em>).
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td> Format to transform sample data to (if its the same as the native
format of <em class="parameter"><code>sample</code></em> no transformation occurs)
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>channel_map</code></em> :</span></p></td>
<td> Channel mapping if <em class="parameter"><code>format</code></em> is set (set to 0 otherwise), use
<a
href="../libinstpatch/libinstpatch-sample.html#IPATCH-SAMPLE-UNITY-CHANNEL-MAP--CAPS"
><span class="type">IPATCH_SAMPLE_UNITY_CHANNEL_MAP</span></a> for 1 to 1 channel mapping
(see <a
href="../libinstpatch/libinstpatch-sample.html#ipatch-sample-get-transform-funcs"
><code class="function">ipatch_sample_get_transform_funcs()</code></a> for details).
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>err</code></em> :</span></p></td>
<td> Location to store error info or <code class="literal">NULL</code>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <code class="literal">TRUE</code> on success, <code class="literal">FALSE</code> on error (in which case
<em class="parameter"><code>err</code></em> may be set).
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_write_transform ()">
<a name="ipatch-sample-write-transform"></a><h3>ipatch_sample_write_transform ()</h3>
<pre class="programlisting"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> ipatch_sample_write_transform (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> offset,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> frames,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gconstpointer"
>gconstpointer</a> buf,
int format,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"
>guint32</a> channel_map,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);</pre>
<p>
Like <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-write"
><code class="function">ipatch_sample_write()</code></a> but allows for sample transformation.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>sample</code></em> :</span></p></td>
<td> Sample to write to
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>offset</code></em> :</span></p></td>
<td> Offset in frames to write to
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>frames</code></em> :</span></p></td>
<td> Number of frames to write
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buf</code></em> :</span></p></td>
<td> Buffer of sample data to write (should be at least <em class="parameter"><code>frames</code></em> *
<a
href="../libinstpatch/libinstpatch-sample.html#ipatch-sample-format-size"
><code class="function">ipatch_sample_format_size()</code></a> of <em class="parameter"><code>format</code></em>).
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td> Format to transform sample data from (if its the same as the native
format of <em class="parameter"><code>sample</code></em> no transformation occurs)
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>channel_map</code></em> :</span></p></td>
<td> Channel mapping if <em class="parameter"><code>format</code></em> is set (set to 0 otherwise), use
<a
href="../libinstpatch/libinstpatch-sample.html#IPATCH-SAMPLE-UNITY-CHANNEL-MAP--CAPS"
><span class="type">IPATCH_SAMPLE_UNITY_CHANNEL_MAP</span></a> for 1 to 1 channel mapping
(see <a
href="../libinstpatch/libinstpatch-sample.html#ipatch-sample-get-transform-funcs"
><code class="function">ipatch_sample_get_transform_funcs()</code></a> for details).
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>err</code></em> :</span></p></td>
<td> Location to store error info or <code class="literal">NULL</code>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <code class="literal">TRUE</code> on success, <code class="literal">FALSE</code> otherwise (in which case <em class="parameter"><code>err</code></em> may be set).
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_copy ()">
<a name="ipatch-sample-copy"></a><h3>ipatch_sample_copy ()</h3>
<pre class="programlisting"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> ipatch_sample_copy (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *dest_sample,
<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *src_sample,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"
>guint32</a> channel_map,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);</pre>
<p>
Copy sample data from one sample to another. The two samples may differ
in format, in which case the sample data will be converted. The
<em class="parameter"><code>dest_sample</code></em> must either be the same size in frames as <em class="parameter"><code>src_sample</code></em> or not
yet assigned a size.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>dest_sample</code></em> :</span></p></td>
<td> Destination sample to copy data to
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>src_sample</code></em> :</span></p></td>
<td> Source sample to copy data from
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>channel_map</code></em> :</span></p></td>
<td> Channel mapping, use <a
href="../libinstpatch/libinstpatch-sample.html#IPATCH-SAMPLE-UNITY-CHANNEL-MAP--CAPS"
><span class="type">IPATCH_SAMPLE_UNITY_CHANNEL_MAP</span></a> for 1 to 1
channel mapping (see <a
href="../libinstpatch/libinstpatch-sample.html#ipatch-sample-get-transform-funcs"
><code class="function">ipatch_sample_get_transform_funcs()</code></a> for details).
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>err</code></em> :</span></p></td>
<td> Location to store error information or <code class="literal">NULL</code>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <code class="literal">TRUE</code> on success, <code class="literal">FALSE</code> otherwise (in which case <em class="parameter"><code>err</code></em> may be set).
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_save_to_file ()">
<a name="ipatch-sample-save-to-file"></a><h3>ipatch_sample_save_to_file ()</h3>
<pre class="programlisting"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> ipatch_sample_save_to_file (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample,
const char *filename,
int file_format,
int sub_format,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);</pre>
<p>
Convenience function to save a sample to a file using libsndfile.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>sample</code></em> :</span></p></td>
<td> Sample to save to file
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>filename</code></em> :</span></p></td>
<td> File name to save to
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>file_format</code></em> :</span></p></td>
<td> A value from the dynamic GEnum "IpatchSndFileFormat".
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>sub_format</code></em> :</span></p></td>
<td> A value from the dynamic GEnum "IpatchSndFileSubFormat" or -1
to calculate optimal value based on the format of <em class="parameter"><code>sample</code></em>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>err</code></em> :</span></p></td>
<td> Location to store error info or <code class="literal">NULL</code> to ignore
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <code class="literal">TRUE</code> on success, <code class="literal">FALSE</code> otherwise
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_handle_open ()">
<a name="ipatch-sample-handle-open"></a><h3>ipatch_sample_handle_open ()</h3>
<pre class="programlisting"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> ipatch_sample_handle_open (<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample,
<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle,
char mode,
int format,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"
>guint32</a> channel_map,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);</pre>
<p>
Open a handle to a sample for reading or writing sample data. Can optionally
provide data conversion if <em class="parameter"><code>format</code></em> is set. If it is desirable to have more
control over the transform object and buffer allocation, the transform object
can be assigned with <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-handle-set-transform"
><code class="function">ipatch_sample_handle_set_transform()</code></a>. Note that a sample
transform is acquired if <em class="parameter"><code>format</code></em> is set, even if the format is identical to
the <em class="parameter"><code>sample</code></em> format, as a convenience to always provide a data buffer.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>sample</code></em> :</span></p></td>
<td> Sample to open a handle to
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>handle</code></em> :</span></p></td>
<td> Caller supplied structure to initialize
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mode</code></em> :</span></p></td>
<td> Access mode to sample, 'r' for reading and 'w' for writing
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td> Sample format to convert to/from (0 for no conversion or to assign
a transform object with <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-handle-set-transform"
><code class="function">ipatch_sample_handle_set_transform()</code></a>).
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>channel_map</code></em> :</span></p></td>
<td> Channel mapping if <em class="parameter"><code>format</code></em> is set (set to 0 otherwise), use
<a
href="../libinstpatch/libinstpatch-sample.html#IPATCH-SAMPLE-UNITY-CHANNEL-MAP--CAPS"
><span class="type">IPATCH_SAMPLE_UNITY_CHANNEL_MAP</span></a> for 1 to 1 channel mapping
(see <a
href="../libinstpatch/libinstpatch-sample.html#ipatch-sample-get-transform-funcs"
><code class="function">ipatch_sample_get_transform_funcs()</code></a> for details).
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>err</code></em> :</span></p></td>
<td> Location to store error information
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <code class="literal">TRUE</code> on success, <code class="literal">FALSE</code> on failure (in which case <em class="parameter"><code>err</code></em> may be set)
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_handle_close ()">
<a name="ipatch-sample-handle-close"></a><h3>ipatch_sample_handle_close ()</h3>
<pre class="programlisting">void ipatch_sample_handle_close (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle);</pre>
<p>
Close a handle previously opened with <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-handle-open"
><code class="function">ipatch_sample_handle_open()</code></a>.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>handle</code></em> :</span></p></td>
<td> Sample handle to close
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_handle_get_transform ()">
<a name="ipatch-sample-handle-get-transform"></a><h3>ipatch_sample_handle_get_transform ()</h3>
<pre class="programlisting"><a
href="../libinstpatch/libinstpatch-IpatchSampleTransform.html#IpatchSampleTransform"
>IpatchSampleTransform</a> * ipatch_sample_handle_get_transform
(<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle);</pre>
<p>
Get sample transform from a sample handle. Only exists if sample
data conversion is taking place or even if formats are the same but was
implicitly supplied to <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-handle-open"
><code class="function">ipatch_sample_handle_open()</code></a>. Transform should not be
modified unless it was assigned via <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-handle-set-transform"
><code class="function">ipatch_sample_handle_set_transform()</code></a>.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>handle</code></em> :</span></p></td>
<td> Sample handle to get transform from
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> Sample transform or <code class="literal">NULL</code> if none.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_handle_set_transform ()">
<a name="ipatch-sample-handle-set-transform"></a><h3>ipatch_sample_handle_set_transform ()</h3>
<pre class="programlisting">void ipatch_sample_handle_set_transform (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle,
<a
href="../libinstpatch/libinstpatch-IpatchSampleTransform.html#IpatchSampleTransform"
>IpatchSampleTransform</a> *transform);</pre>
<p>
Assign a sample transform to a sample handle. Provided for added
control over <em class="parameter"><code>transform</code></em> allocation. A transform can also be automatically
created and assigned with <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-handle-open"
><code class="function">ipatch_sample_handle_open()</code></a>. Sample transform
allocation is taken over by <em class="parameter"><code>handle</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>handle</code></em> :</span></p></td>
<td> Sample handle to set transform of
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>transform</code></em> :</span></p></td>
<td> Transform to assign, source format must match that of
the handle's sample (read mode) or destination format must match (write mode),
can be <code class="literal">NULL</code> to de-activate sample transformation for <em class="parameter"><code>handle</code></em>.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_handle_get_format ()">
<a name="ipatch-sample-handle-get-format"></a><h3>ipatch_sample_handle_get_format ()</h3>
<pre class="programlisting">int ipatch_sample_handle_get_format (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle);</pre>
<p>
Get the sample format of a sample handle. May differ from the <a
href="../libinstpatch/IpatchSample.html"
><span class="type">IpatchSample</span></a>
format of the handle, if it was opened with a different format and is
therefore being converted.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>handle</code></em> :</span></p></td>
<td> Sample handle to get format of
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> Sample format integer (see <a
href="../libinstpatch/libinstpatch-sample.html#IpatchSampleWidth"
><span class="type">IpatchSampleWidth</span></a>, etc).
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_handle_get_frame_size ()">
<a name="ipatch-sample-handle-get-frame-size"></a><h3>ipatch_sample_handle_get_frame_size ()</h3>
<pre class="programlisting">int ipatch_sample_handle_get_frame_size (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle);</pre>
<p>
A convenience function to get size of a single sample frame for a given
sample <em class="parameter"><code>handle</code></em>. This is useful for determining buffer allocation sizes when
reading or writing data.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>handle</code></em> :</span></p></td>
<td> Sample handle to get data frame size of
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> Size in bytes of a single sample frame
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_handle_get_max_frames ()">
<a name="ipatch-sample-handle-get-max-frames"></a><h3>ipatch_sample_handle_get_max_frames ()</h3>
<pre class="programlisting"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> ipatch_sample_handle_get_max_frames (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle);</pre>
<p>
A convenience function to get the maximum transform frames that can fit
in the sample transform of <em class="parameter"><code>handle</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>handle</code></em> :</span></p></td>
<td> Sample handle to get max transform frames of
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> Maximum frames that can be read or written using the sample
transform buffers. 0 if no sample transform is assigned.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_handle_read ()">
<a name="ipatch-sample-handle-read"></a><h3>ipatch_sample_handle_read ()</h3>
<pre class="programlisting"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"
>gpointer</a> ipatch_sample_handle_read (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> offset,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> frames,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"
>gpointer</a> buf,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);</pre>
<p>
Read sample data from a sample handle. If the number of
frames read is within the sample transform buffer size and <em class="parameter"><code>buf</code></em> is <code class="literal">NULL</code>
then the transform buffer will be returned (extra copy not needed).</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>handle</code></em> :</span></p></td>
<td> Sample handle
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>offset</code></em> :</span></p></td>
<td> Offset in frames to read from
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>frames</code></em> :</span></p></td>
<td> Number of frames to read
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buf</code></em> :</span></p></td>
<td> Buffer to store sample data in (should be at least <em class="parameter"><code>frames</code></em> *
sizeof (frame), the frame size can be had from
<a
href="../libinstpatch/IpatchSample.html#ipatch-sample-handle-get-frame-size"
><code class="function">ipatch_sample_handle_get_frame_size()</code></a>). Can be <code class="literal">NULL</code> if transforming
audio data with not more than the maximum frames that can be transformed
at a time, in which case the internal transform buffer pointer will be
returned.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>err</code></em> :</span></p></td>
<td> Location to store error info or <code class="literal">NULL</code>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> Pointer to sample data on success, <code class="literal">NULL</code> on error (in which case
<em class="parameter"><code>err</code></em> may be set). The internal transform buffer will only be returned
if the <em class="parameter"><code>buf</code></em> parameter is <code class="literal">NULL</code>.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_handle_write ()">
<a name="ipatch-sample-handle-write"></a><h3>ipatch_sample_handle_write ()</h3>
<pre class="programlisting"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> ipatch_sample_handle_write (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> offset,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> frames,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gconstpointer"
>gconstpointer</a> buf,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);</pre>
<p>
Write sample data to a sample handle.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>handle</code></em> :</span></p></td>
<td> Sample handle
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>offset</code></em> :</span></p></td>
<td> Offset in frames to write to
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>frames</code></em> :</span></p></td>
<td> Number of frames to write
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buf</code></em> :</span></p></td>
<td> Buffer of sample data to write (should be at least <em class="parameter"><code>frames</code></em> *
sizeof (frame), the frame size can be had from
<a
href="../libinstpatch/IpatchSample.html#ipatch-sample-handle-get-frame-size"
><code class="function">ipatch_sample_handle_get_frame_size()</code></a>). Can be <code class="literal">NULL</code>, in which case it is
assumed that the sample data has been loaded into the first buffer of the
handle's sample transform.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>err</code></em> :</span></p></td>
<td> Location to store error info or <code class="literal">NULL</code>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <code class="literal">TRUE</code> on success, <code class="literal">FALSE</code> otherwise (in which case <em class="parameter"><code>err</code></em> may be set).
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_handle_cascade_open ()">
<a name="ipatch-sample-handle-cascade-open"></a><h3>ipatch_sample_handle_cascade_open ()</h3>
<pre class="programlisting"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> ipatch_sample_handle_cascade_open (<a
href="../libinstpatch/IpatchSample.html#IpatchSampleHandle"
>IpatchSampleHandle</a> *handle,
<a
href="../libinstpatch/IpatchSample.html"
>IpatchSample</a> *sample,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"
>GError</a> **err);</pre>
<p>
This can be called from <a
href="../libinstpatch/IpatchSample.html#IpatchSampleIface"
><span class="type">IpatchSampleIface</span></a>.open methods
for objects which contain a pointer to an <a
href="../libinstpatch/IpatchSample.html"
><span class="type">IpatchSample</span></a> that contains the
sample's data.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>handle</code></em> :</span></p></td>
<td> Already open handle
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>sample</code></em> :</span></p></td>
<td> The cascade sample containing the actual data
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>err</code></em> :</span></p></td>
<td> Location to store error information
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <code class="literal">TRUE</code> on success, <code class="literal">FALSE</code> on failure (in which case <em class="parameter"><code>err</code></em> may be set)
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_install_property ()">
<a name="ipatch-sample-install-property"></a><h3>ipatch_sample_install_property ()</h3>
<pre class="programlisting"><a
href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"
>GParamSpec</a> * ipatch_sample_install_property (<a
href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObjectClass"
>GObjectClass</a> *oclass,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> property_id,
const char *property_name);</pre>
<p>
A helper function for objects that have an <a
href="../libinstpatch/IpatchSample.html"
><span class="type">IpatchSample</span></a> interface.
Installs a <a
href="../libinstpatch/IpatchSample.html"
><span class="type">IpatchSample</span></a> interface property for the given object class.
The parameter will be <span class="type">G_PARAM_READWRITE</span>.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>oclass</code></em> :</span></p></td>
<td> Object class to install <a
href="../libinstpatch/IpatchSample.html"
><span class="type">IpatchSample</span></a> property
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>property_id</code></em> :</span></p></td>
<td> Property ID for set/get property class method
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>property_name</code></em> :</span></p></td>
<td> <a
href="../libinstpatch/IpatchSample.html"
><span class="type">IpatchSample</span></a> property name to install
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> The newly created and installed parameter spec.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_install_property_readonly ()">
<a name="ipatch-sample-install-property-readonly"></a><h3>ipatch_sample_install_property_readonly ()</h3>
<pre class="programlisting"><a
href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"
>GParamSpec</a> * ipatch_sample_install_property_readonly
(<a
href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObjectClass"
>GObjectClass</a> *oclass,
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> property_id,
const char *property_name);</pre>
<p>
A helper function for objects that have an <a
href="../libinstpatch/IpatchSample.html"
><span class="type">IpatchSample</span></a> interface.
Identical to <a
href="../libinstpatch/IpatchSample.html#ipatch-sample-install-property"
><code class="function">ipatch_sample_install_property()</code></a> but installs the property
as readonly and uses <a
href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#g-object-class-override-property"
><code class="function">g_object_class_override_property()</code></a> instead of
creating a new <a
href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"
><span class="type">GParamSpec</span></a>.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>oclass</code></em> :</span></p></td>
<td> Object class to install <a
href="../libinstpatch/IpatchSample.html"
><span class="type">IpatchSample</span></a> property
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>property_id</code></em> :</span></p></td>
<td> Property ID for set/get property class method
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>property_name</code></em> :</span></p></td>
<td> <a
href="../libinstpatch/IpatchSample.html"
><span class="type">IpatchSample</span></a> property name to install
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> The newly created and installed parameter spec (GParamSpecOverride).
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="ipatch_sample_new_property_param_spec ()">
<a name="ipatch-sample-new-property-param-spec"></a><h3>ipatch_sample_new_property_param_spec ()</h3>
<pre class="programlisting"><a
href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"
>GParamSpec</a> * ipatch_sample_new_property_param_spec
(const char *property_name,
<a
href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamFlags"
>GParamFlags</a> flags);</pre>
<p>
Seldom used function that creates a new GParamSpec that is identical to
a <a
href="../libinstpatch/IpatchSample.html"
><span class="type">IpatchSample</span></a> property by the name <em class="parameter"><code>property_name</code></em>, except the flags
can differ.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>property_name</code></em> :</span></p></td>
<td> Name of a <a
href="../libinstpatch/IpatchSample.html"
><span class="type">IpatchSample</span></a> property
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>flags</code></em> :</span></p></td>
<td> Flags to use for the new <a
href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"
><span class="type">GParamSpec</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> New GParamSpec.
</td>
</tr>
</tbody>
</table></div>
</div>
</div>
<div class="refsect1" title="Property Details">
<a name="IpatchSample.property-details"></a><h2>Property Details</h2>
<div class="refsect2" title='The "fine-tune" property'>
<a name="IpatchSample--fine-tune"></a><h3>The <code class="literal">"fine-tune"</code> property</h3>
<pre class="programlisting"> "fine-tune" <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"
>gint</a> : Read</pre>
<p>Fine tuning in cents.</p>
<p>Allowed values: [-99,99]</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2" title='The "loop-end" property'>
<a name="IpatchSample--loop-end"></a><h3>The <code class="literal">"loop-end"</code> property</h3>
<pre class="programlisting"> "loop-end" <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> : Read</pre>
<p>Loop end in frames (after loop).</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2" title='The "loop-start" property'>
<a name="IpatchSample--loop-start"></a><h3>The <code class="literal">"loop-start"</code> property</h3>
<pre class="programlisting"> "loop-start" <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> : Read</pre>
<p>Start of loop in frames.</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2" title='The "loop-type" property'>
<a name="IpatchSample--loop-type"></a><h3>The <code class="literal">"loop-type"</code> property</h3>
<pre class="programlisting"> "loop-type" <a
href="../libinstpatch/IpatchSample.html#IpatchSampleLoopType"
>IpatchSampleLoopType</a> : Read</pre>
<p>Loop method type.</p>
<p>Default value: IPATCH_SAMPLE_LOOP_NONE</p>
</div>
<hr>
<div class="refsect2" title='The "root-note" property'>
<a name="IpatchSample--root-note"></a><h3>The <code class="literal">"root-note"</code> property</h3>
<pre class="programlisting"> "root-note" <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"
>gint</a> : Read</pre>
<p>Root MIDI note.</p>
<p>Allowed values: [0,127]</p>
<p>Default value: 60</p>
</div>
<hr>
<div class="refsect2" title='The "sample-data" property'>
<a name="IpatchSample--sample-data"></a><h3>The <code class="literal">"sample-data"</code> property</h3>
<pre class="programlisting"> "sample-data" <a
href="../libinstpatch/IpatchSampleData.html"
>IpatchSampleData</a>* : Read</pre>
<p>Sample data.</p>
</div>
<hr>
<div class="refsect2" title='The "sample-format" property'>
<a name="IpatchSample--sample-format"></a><h3>The <code class="literal">"sample-format"</code> property</h3>
<pre class="programlisting"> "sample-format" <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"
>gint</a> : Read</pre>
<p>Sample format.</p>
<p>Allowed values: >= 0</p>
<p>Default value: 2</p>
</div>
<hr>
<div class="refsect2" title='The "sample-rate" property'>
<a name="IpatchSample--sample-rate"></a><h3>The <code class="literal">"sample-rate"</code> property</h3>
<pre class="programlisting"> "sample-rate" <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"
>gint</a> : Read</pre>
<p>Sampling rate in Hertz.</p>
<p>Allowed values: [8000,192000]</p>
<p>Default value: 44100</p>
</div>
<hr>
<div class="refsect2" title='The "sample-size" property'>
<a name="IpatchSample--sample-size"></a><h3>The <code class="literal">"sample-size"</code> property</h3>
<pre class="programlisting"> "sample-size" <a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"
>guint</a> : Read</pre>
<p>Size in frames.</p>
<p>Default value: 0</p>
</div>
</div>
</div>
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