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| <div class="refentry"> |
| <a name="GstGLDownload"></a><div class="titlepage"></div> |
| <div class="refnamediv"><table width="100%"><tr> |
| <td valign="top"> |
| <h2><span class="refentrytitle"><a name="GstGLDownload.top_of_page"></a>GstGLDownload</span></h2> |
| <p>GstGLDownload — an object that downloads GL textures</p> |
| </td> |
| <td class="gallery_image" valign="top" align="right"></td> |
| </tr></table></div> |
| <div class="refsect1"> |
| <a name="GstGLDownload.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 class="link" href="GstGLDownload.html" title="GstGLDownload"><span class="returnvalue">GstGLDownload</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstGLDownload.html#gst-gl-download-new" title="gst_gl_download_new ()">gst_gl_download_new</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <span class="returnvalue">void</span> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstGLDownload.html#gst-gl-download-set-format" title="gst_gl_download_set_format ()">gst_gl_download_set_format</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstCaps.html"><span class="returnvalue">GstCaps</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstGLDownload.html#gst-gl-download-transform-caps" title="gst_gl_download_transform_caps ()">gst_gl_download_transform_caps</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstGLDownload.html#gst-gl-download-perform-with-data" title="gst_gl_download_perform_with_data ()">gst_gl_download_perform_with_data</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect1"> |
| <a name="GstGLDownload.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="GstGLDownload.html#GstGLDownload-struct" title="GstGLDownload">GstGLDownload</a></td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect1"> |
| <a name="GstGLDownload.object-hierarchy"></a><h2>Object Hierarchy</h2> |
| <pre class="screen"> <a href="https://developer.gnome.org/gobject/unstable/gobject-The-Base-Object-Type.html#GObject">GObject</a> |
| <span class="lineart">╰──</span> <a href="https://developer.gnome.org/gobject/unstable/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a> |
| <span class="lineart">╰──</span> <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstObject.html">GstObject</a> |
| <span class="lineart">╰──</span> GstGLDownload |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="GstGLDownload.description"></a><h2>Description</h2> |
| <p><a class="link" href="GstGLDownload.html" title="GstGLDownload"><span class="type">GstGLDownload</span></a> is an object that downloads GL textures into system memory.</p> |
| <p>A <a class="link" href="GstGLDownload.html" title="GstGLDownload"><span class="type">GstGLDownload</span></a> can be created with <a class="link" href="GstGLDownload.html#gst-gl-download-new" title="gst_gl_download_new ()"><code class="function">gst_gl_download_new()</code></a></p> |
| </div> |
| <div class="refsect1"> |
| <a name="GstGLDownload.functions_details"></a><h2>Functions</h2> |
| <div class="refsect2"> |
| <a name="gst-gl-download-new"></a><h3>gst_gl_download_new ()</h3> |
| <pre class="programlisting"><a class="link" href="GstGLDownload.html" title="GstGLDownload"><span class="returnvalue">GstGLDownload</span></a> * |
| gst_gl_download_new (<em class="parameter"><code><a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a> *context</code></em>);</pre> |
| <div class="refsect3"> |
| <a name="id-1.2.9.12.7.2.4"></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>context</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.2.9.12.7.2.5"></a><h4>Returns</h4> |
| <p> a new <a class="link" href="GstGLDownload.html" title="GstGLDownload"><span class="type">GstGLDownload</span></a> object</p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-gl-download-set-format"></a><h3>gst_gl_download_set_format ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> |
| gst_gl_download_set_format (<em class="parameter"><code><a class="link" href="GstGLDownload.html" title="GstGLDownload"><span class="type">GstGLDownload</span></a> *download</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstvideo.html#GstVideoInfo"><span class="type">GstVideoInfo</span></a> *out_info</code></em>);</pre> |
| <p>Initializes <em class="parameter"><code>download</code></em> |
| with the information required for download.</p> |
| <div class="refsect3"> |
| <a name="id-1.2.9.12.7.3.5"></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>download</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstGLDownload.html" title="GstGLDownload"><span class="type">GstGLDownload</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>out_info</p></td> |
| <td class="parameter_description"><p>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstvideo.html#GstVideoInfo"><span class="type">GstVideoInfo</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-gl-download-transform-caps"></a><h3>gst_gl_download_transform_caps ()</h3> |
| <pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstCaps.html"><span class="returnvalue">GstCaps</span></a> * |
| gst_gl_download_transform_caps (<em class="parameter"><code><a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a> *convert</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstPadDirection"><span class="type">GstPadDirection</span></a> direction</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstCaps.html"><span class="type">GstCaps</span></a> *caps</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstCaps.html"><span class="type">GstCaps</span></a> *filter</code></em>);</pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-gl-download-perform-with-data"></a><h3>gst_gl_download_perform_with_data ()</h3> |
| <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| gst_gl_download_perform_with_data (<em class="parameter"><code><a class="link" href="GstGLDownload.html" title="GstGLDownload"><span class="type">GstGLDownload</span></a> *download</code></em>, |
| <em class="parameter"><code><span class="type">GLuint</span> texture_id</code></em>, |
| <em class="parameter"><code><span class="type">GLuint</span> texture_target</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data[GST_VIDEO_MAX_PLANES]</code></em>);</pre> |
| <p>Downloads <em class="parameter"><code>texture_id</code></em> |
| into <em class="parameter"><code>data</code></em> |
| . <em class="parameter"><code>data</code></em> |
| size and format is specified by |
| the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstvideo.html#GstVideoFormat"><span class="type">GstVideoFormat</span></a> passed to <a class="link" href="GstGLDownload.html#gst-gl-download-set-format" title="gst_gl_download_set_format ()"><code class="function">gst_gl_download_set_format()</code></a></p> |
| <p>This method can only be used for download a single view.</p> |
| <div class="refsect3"> |
| <a name="id-1.2.9.12.7.5.6"></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>download</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstGLDownload.html" title="GstGLDownload"><span class="type">GstGLDownload</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>texture_id</p></td> |
| <td class="parameter_description"><p>the texture id to download</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>texture_target</p></td> |
| <td class="parameter_description"><p>the GL texture target</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>data</p></td> |
| <td class="parameter_description"><p> where the downloaded data should go. </p></td> |
| <td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span></td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.2.9.12.7.5.7"></a><h4>Returns</h4> |
| <p> whether the download was successful</p> |
| </div> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="GstGLDownload.other_details"></a><h2>Types and Values</h2> |
| <div class="refsect2"> |
| <a name="GstGLDownload-struct"></a><h3>GstGLDownload</h3> |
| <pre class="programlisting">typedef struct _GstGLDownload GstGLDownload;</pre> |
| <p>Opaque <a class="link" href="GstGLDownload.html" title="GstGLDownload"><span class="type">GstGLDownload</span></a> object</p> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="GstGLDownload.see-also"></a><h2>See Also</h2> |
| <p><a class="link" href="GstGLUpload.html" title="GstGLUpload"><span class="type">GstGLUpload</span></a>, <a class="link" href="gst-plugins-bad-libs-gstglmemory.html#GstGLMemory" title="GstGLMemory"><span class="type">GstGLMemory</span></a></p> |
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