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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>GESExtractableInterface: GStreamer Editing Services 1.6.2 Reference Manual</title>
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<div class="refentry">
<a name="ges-GESExtractableInterface"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="ges-GESExtractableInterface.top_of_page"></a>GESExtractableInterface</span></h2>
<p>GESExtractableInterface — An interface for objects which can be extracted from a GESAsset</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="ges-GESExtractableInterface.functions"></a><h2>Functions</h2>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="ges-GESExtractableInterface.html#GESExtractableCheckId" title="GESExtractableCheckId ()">*GESExtractableCheckId</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GESAsset.html" title="GESAsset"><span class="returnvalue">GESAsset</span></a> *
</td>
<td class="function_name">
<a class="link" href="ges-GESExtractableInterface.html#ges-extractable-get-asset" title="ges_extractable_get_asset ()">ges_extractable_get_asset</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="ges-GESExtractableInterface.html#ges-extractable-set-asset" title="ges_extractable_set_asset ()">ges_extractable_set_asset</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="ges-GESExtractableInterface.html#ges-extractable-get-id" title="ges_extractable_get_id ()">ges_extractable_get_id</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<a name="GESExtractable"></a><div class="refsect1">
<a name="ges-GESExtractableInterface.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody>
<tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="ges-GESExtractableInterface.html#GESExtractable-struct" title="GESExtractable">GESExtractable</a></td>
</tr>
<tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="ges-GESExtractableInterface.html#GESExtractableInterface" title="GESExtractableInterface">GESExtractableInterface</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="ges-GESExtractableInterface.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen">    GInterface
    <span class="lineart">╰──</span> GESExtractable
</pre>
</div>
<div class="refsect1">
<a name="ges-GESExtractableInterface.prerequisites"></a><h2>Prerequisites</h2>
<p>
GESExtractable requires
 <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>.</p>
</div>
<div class="refsect1">
<a name="ges-GESExtractableInterface.implementations"></a><h2>Known Implementations</h2>
<p>
GESExtractable is implemented by
 <a class="link" href="GESAudioSource.html" title="GESAudioSource">GESAudioSource</a>,  <a class="link" href="GESAudioTestSource.html" title="GESAudioTestSource">GESAudioTestSource</a>,  <a class="link" href="GESAudioTransition.html" title="GESAudioTransition">GESAudioTransition</a>,  <a class="link" href="GESAudioUriSource.html" title="GESAudioUriSource">GESAudioUriSource</a>,  <a class="link" href="GESBaseEffect.html" title="GESBaseEffect">GESBaseEffect</a>,  <a class="link" href="GESBaseEffectClip.html" title="GESBaseEffectClip">GESBaseEffectClip</a>,  <a class="link" href="GESBaseTransitionClip.html" title="GESBaseTransitionClip">GESBaseTransitionClip</a>,  <a class="link" href="GESClip.html" title="GESClip">GESClip</a>,  <a class="link" href="GESContainer.html" title="GESContainer">GESContainer</a>,  <a class="link" href="GESEffect.html" title="GESEffect">GESEffect</a>,  <a class="link" href="GESEffectClip.html" title="GESEffectClip">GESEffectClip</a>,  <a class="link" href="GESFormatter.html" title="GESFormatter">GESFormatter</a>,  <a class="link" href="GESImageSource.html" title="GESImageSource">GESImageSource</a>,  <a class="link" href="GESLayer.html" title="GESLayer">GESLayer</a>,  <a class="link" href="GESMultiFileSource.html" title="GESMultiFileSource">GESMultiFileSource</a>,  <a class="link" href="GESOperation.html" title="GESOperation">GESOperation</a>,  <a class="link" href="GESOperationClip.html" title="GESOperationClip">GESOperationClip</a>,  <a class="link" href="GESOverlayClip.html" title="GESOverlayClip">GESOverlayClip</a>,  <a class="link" href="GESSource.html" title="GESSource">GESSource</a>,  <a class="link" href="GESSourceClip.html" title="GESSourceClip">GESSourceClip</a>,  <a class="link" href="GESTestClip.html" title="GESTestClip">GESTestClip</a>,  <a class="link" href="GESTextOverlay.html" title="GESTextOverlay">GESTextOverlay</a>,  <a class="link" href="GESTextOverlayClip.html" title="GESTextOverlayClip">GESTextOverlayClip</a>,  <a class="link" href="GESTimeline.html" title="GESTimeline">GESTimeline</a>,  <a class="link" href="GESTimelineElement.html" title="GESTimelineElement">GESTimelineElement</a>,  <a class="link" href="GESTitleClip.html" title="GESTitleClip">GESTitleClip</a>,  <a class="link" href="GESTitleSource.html" title="GESTitleSource">GESTitleSource</a>,  <a class="link" href="GESTrackElement.html" title="GESTrackElement">GESTrackElement</a>,  <a class="link" href="GESTransition.html" title="GESTransition">GESTransition</a>,  <a class="link" href="GESTransitionClip.html" title="GESTransitionClip">GESTransitionClip</a>,  <a class="link" href="GESUriClip.html" title="GESUriClip">GESUriClip</a>,  <a class="link" href="GESVideoSource.html" title="GESVideoSource">GESVideoSource</a>,  <a class="link" href="GESVideoTestSource.html" title="GESVideoTestSource">GESVideoTestSource</a>,  <a class="link" href="GESVideoTransition.html" title="GESVideoTransition">GESVideoTransition</a> and  <a class="link" href="GESVideoUriSource.html" title="GESVideoUriSource">GESVideoUriSource</a>.</p>
</div>
<div class="refsect1">
<a name="ges-GESExtractableInterface.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include &lt;ges/ges.h&gt;
</pre>
</div>
<div class="refsect1">
<a name="ges-GESExtractableInterface.description"></a><h2>Description</h2>
<p>FIXME: Long description needed</p>
</div>
<div class="refsect1">
<a name="ges-GESExtractableInterface.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="GESExtractableCheckId"></a><h3>GESExtractableCheckId ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
<span class="c_punctuation">(</span>*GESExtractableCheckId<span class="c_punctuation">)</span> (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="type">GType</span></a> type</code></em>,
                          <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *id</code></em>,
                          <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre>
<div class="refsect3">
<a name="id-1.8.3.11.2.4"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>type</p></td>
<td class="parameter_description"><p>The <a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="type">GType</span></a> to check <em class="parameter"><code>id</code></em>
for:</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>id</p></td>
<td class="parameter_description"><p>The id to check</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>error</p></td>
<td class="parameter_description"><p>An error that can be set if needed</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.8.3.11.2.5"></a><h4>Returns</h4>
<p> The ID to use for the asset or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if <em class="parameter"><code>id</code></em>
is not valid</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="ges-extractable-get-asset"></a><h3>ges_extractable_get_asset ()</h3>
<pre class="programlisting"><a class="link" href="GESAsset.html" title="GESAsset"><span class="returnvalue">GESAsset</span></a> *
ges_extractable_get_asset (<em class="parameter"><code><a class="link" href="ges-GESExtractableInterface.html#GESExtractable"><span class="type">GESExtractable</span></a> *self</code></em>);</pre>
<p>Method for getting an asset from a <a class="link" href="ges-GESExtractableInterface.html#GESExtractable"><span class="type">GESExtractable</span></a></p>
<div class="refsect3">
<a name="id-1.8.3.11.3.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>self</p></td>
<td class="parameter_description"><p>The <a class="link" href="ges-GESExtractableInterface.html#GESExtractable"><span class="type">GESExtractable</span></a> from which to retrieve a <a class="link" href="GESAsset.html" title="GESAsset"><span class="type">GESAsset</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.8.3.11.3.6"></a><h4>Returns</h4>
<p> The <a class="link" href="GESAsset.html" title="GESAsset"><span class="type">GESAsset</span></a> or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if none has been set. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="ges-extractable-set-asset"></a><h3>ges_extractable_set_asset ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
ges_extractable_set_asset (<em class="parameter"><code><a class="link" href="ges-GESExtractableInterface.html#GESExtractable"><span class="type">GESExtractable</span></a> *self</code></em>,
                           <em class="parameter"><code><a class="link" href="GESAsset.html" title="GESAsset"><span class="type">GESAsset</span></a> *asset</code></em>);</pre>
<p>Method to set the asset which instantiated the specified object</p>
<p>Return: <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if <em class="parameter"><code>asset</code></em>
 could be set <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwize</p>
<div class="refsect3">
<a name="id-1.8.3.11.4.6"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>self</p></td>
<td class="parameter_description"><p>Target object</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>asset</p></td>
<td class="parameter_description"><p> The <a class="link" href="GESAsset.html" title="GESAsset"><span class="type">GESAsset</span></a> to set. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="ges-extractable-get-id"></a><h3>ges_extractable_get_id ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
ges_extractable_get_id (<em class="parameter"><code><a class="link" href="ges-GESExtractableInterface.html#GESExtractable"><span class="type">GESExtractable</span></a> *self</code></em>);</pre>
<div class="refsect3">
<a name="id-1.8.3.11.5.4"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>self</p></td>
<td class="parameter_description"><p>The <a class="link" href="ges-GESExtractableInterface.html#GESExtractable"><span class="type">GESExtractable</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.8.3.11.5.5"></a><h4>Returns</h4>
<p> (transfer full) The <span class="type">id</span> of the associated <a class="link" href="GESAsset.html" title="GESAsset"><span class="type">GESAsset</span></a>, free with <a href="/usr/share/gtk-doc/html/glib/glib-Memory-Allocation.html#g-free"><span class="type">g_free</span></a></p>
</div>
</div>
</div>
<div class="refsect1">
<a name="ges-GESExtractableInterface.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GESExtractable-struct"></a><h3>GESExtractable</h3>
<pre class="programlisting">typedef struct _GESExtractable GESExtractable;</pre>
</div>
<hr>
<div class="refsect2">
<a name="GESExtractableInterface"></a><h3>GESExtractableInterface</h3>
<pre class="programlisting">typedef struct {
  GTypeInterface parent;

  GType asset_type;

  GESExtractableCheckId check_id;
  gboolean can_update_asset;

  void (*set_asset)                  (GESExtractable *self,
                                         GESAsset *asset);

  gboolean (*set_asset_full)         (GESExtractable *self,
                                      GESAsset *asset);

  GParameter *(*get_parameters_from_id) (const gchar *id,
                                         guint *n_params);

  gchar * (*get_id)                     (GESExtractable *self);

  GType (*get_real_extractable_type)    (GType wanted_type,
                                         const gchar *id);

  gboolean (*register_metas)            (GESExtractableInterface *self,
                                         GObjectClass *klass,
                                         GESAsset *asset);

  gpointer _ges_reserved[GES_PADDING];
} GESExtractableInterface;
</pre>
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