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| <div class="refentry"> |
| <a name="gst-plugins-bad-libs-gstglmemory"></a><div class="titlepage"></div> |
| <div class="refnamediv"><table width="100%"><tr> |
| <td valign="top"> |
| <h2><span class="refentrytitle"><a name="gst-plugins-bad-libs-gstglmemory.top_of_page"></a>GstGLMemory</span></h2> |
| <p>GstGLMemory — memory subclass for GL textures</p> |
| </td> |
| <td class="gallery_image" valign="top" align="right"></td> |
| </tr></table></div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-libs-gstglmemory.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"> |
| <span class="returnvalue">void</span> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gst-plugins-bad-libs-gstglmemory.html#gst-gl-memory-init" title="gst_gl_memory_init ()">gst_gl_memory_init</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/GstMemory.html"><span class="returnvalue">GstMemory</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gst-plugins-bad-libs-gstglmemory.html#gst-gl-memory-alloc" title="gst_gl_memory_alloc ()">gst_gl_memory_alloc</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="gst-plugins-bad-libs-gstglmemory.html#GstGLMemory" title="GstGLMemory"><span class="returnvalue">GstGLMemory</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gst-plugins-bad-libs-gstglmemory.html#gst-gl-memory-wrapped" title="gst_gl_memory_wrapped ()">gst_gl_memory_wrapped</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="gst-plugins-bad-libs-gstglmemory.html#GstGLMemory" title="GstGLMemory"><span class="returnvalue">GstGLMemory</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gst-plugins-bad-libs-gstglmemory.html#gst-gl-memory-wrapped-texture" title="gst_gl_memory_wrapped_texture ()">gst_gl_memory_wrapped_texture</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="gst-plugins-bad-libs-gstglmemory.html#gst-gl-memory-copy-into-texture" title="gst_gl_memory_copy_into_texture ()">gst_gl_memory_copy_into_texture</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="gst-plugins-bad-libs-gstglmemory.html#gst-gl-memory-setup-buffer" title="gst_gl_memory_setup_buffer ()">gst_gl_memory_setup_buffer</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="gst-plugins-bad-libs-gstglmemory.html#gst-gl-memory-setup-wrapped" title="gst_gl_memory_setup_wrapped ()">gst_gl_memory_setup_wrapped</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <span class="returnvalue">GstVideoGLTextureType</span> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gst-plugins-bad-libs-gstglmemory.html#gst-gl-texture-type-from-format" title="gst_gl_texture_type_from_format ()">gst_gl_texture_type_from_format</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="gst-plugins-bad-libs-gstglmemory.html#gst-is-gl-memory" title="gst_is_gl_memory ()">gst_is_gl_memory</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <a name="GstGLAllocator"></a><div class="refsect1"> |
| <a name="gst-plugins-bad-libs-gstglmemory.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="gst-plugins-bad-libs-gstglmemory.html#GstGLAllocator-struct" title="GstGLAllocator">GstGLAllocator</a></td> |
| </tr> |
| <tr> |
| <td class="datatype_keyword"> </td> |
| <td class="function_name"><a class="link" href="gst-plugins-bad-libs-gstglmemory.html#GstGLAllocatorClass" title="GstGLAllocatorClass">GstGLAllocatorClass</a></td> |
| </tr> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"><a class="link" href="gst-plugins-bad-libs-gstglmemory.html#GST-GL-MEMORY-ALLOCATOR:CAPS" title="GST_GL_MEMORY_ALLOCATOR">GST_GL_MEMORY_ALLOCATOR</a></td> |
| </tr> |
| <tr> |
| <td class="datatype_keyword"> </td> |
| <td class="function_name"><a class="link" href="gst-plugins-bad-libs-gstglmemory.html#GstGLMemory" title="GstGLMemory">GstGLMemory</a></td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-libs-gstglmemory.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> <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstAllocator.html">GstAllocator</a> |
| <span class="lineart">╰──</span> GstGLBaseBufferAllocator |
| <span class="lineart">╰──</span> GstGLAllocator |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-libs-gstglmemory.description"></a><h2>Description</h2> |
| <p>GstGLMemory is a <span class="type">GstGLBaseBuffer</span> subclass providing support for the mapping of |
| GL textures. </p> |
| <p><a class="link" href="gst-plugins-bad-libs-gstglmemory.html#GstGLMemory" title="GstGLMemory"><span class="type">GstGLMemory</span></a> is created through <a class="link" href="gst-plugins-bad-libs-gstglmemory.html#gst-gl-memory-alloc" title="gst_gl_memory_alloc ()"><code class="function">gst_gl_memory_alloc()</code></a> or system memory can |
| be wrapped through <a class="link" href="gst-plugins-bad-libs-gstglmemory.html#gst-gl-memory-wrapped" title="gst_gl_memory_wrapped ()"><code class="function">gst_gl_memory_wrapped()</code></a>.</p> |
| <p>Data is uploaded or downloaded from the GPU as is necessary.</p> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-libs-gstglmemory.functions_details"></a><h2>Functions</h2> |
| <div class="refsect2"> |
| <a name="gst-gl-memory-init"></a><h3>gst_gl_memory_init ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> |
| gst_gl_memory_init (<em class="parameter"><code><span class="type">void</span></code></em>);</pre> |
| <p>Initializes the GL Memory allocator. It is safe to call this function |
| multiple times. This must be called before any other GstGLMemory operation.</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-gl-memory-alloc"></a><h3>gst_gl_memory_alloc ()</h3> |
| <pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstMemory.html"><span class="returnvalue">GstMemory</span></a> * |
| gst_gl_memory_alloc (<em class="parameter"><code><a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a> *context</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstAllocator.html#GstAllocationParams"><span class="type">GstAllocationParams</span></a> *params</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> *info</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> plane</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#GstVideoAlignment"><span class="type">GstVideoAlignment</span></a> *valign</code></em>);</pre> |
| <p>Allocated a new <span class="type">GstGlMemory</span>.</p> |
| <div class="refsect3"> |
| <a name="id-1.2.9.17.8.3.5"></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>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> |
| <tr> |
| <td class="parameter_name"><p>params</p></td> |
| <td class="parameter_description"><p>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstAllocator.html#GstAllocationParams"><span class="type">GstAllocationParams</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>info</p></td> |
| <td class="parameter_description"><p>the <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> of the memory</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>plane</p></td> |
| <td class="parameter_description"><p>the plane this memory will represent</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>valign</p></td> |
| <td class="parameter_description"><p>the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstvideo.html#GstVideoAlignment"><span class="type">GstVideoAlignment</span></a> applied to <em class="parameter"><code>info</code></em> |
| </p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.2.9.17.8.3.6"></a><h4>Returns</h4> |
| <p> a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstMemory.html"><span class="type">GstMemory</span></a> object with a GL texture specified by <em class="parameter"><code>vinfo</code></em> |
| from <em class="parameter"><code>context</code></em> |
| </p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-gl-memory-wrapped"></a><h3>gst_gl_memory_wrapped ()</h3> |
| <pre class="programlisting"><a class="link" href="gst-plugins-bad-libs-gstglmemory.html#GstGLMemory" title="GstGLMemory"><span class="returnvalue">GstGLMemory</span></a> * |
| gst_gl_memory_wrapped (<em class="parameter"><code><a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a> *context</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> *info</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> plane</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#GstVideoAlignment"><span class="type">GstVideoAlignment</span></a> *valign</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</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> user_data</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Datasets.html#GDestroyNotify"><span class="type">GDestroyNotify</span></a> notify</code></em>);</pre> |
| <p>Wrapped <em class="parameter"><code>data</code></em> |
| into a <a class="link" href="gst-plugins-bad-libs-gstglmemory.html#GstGLMemory" title="GstGLMemory"><span class="type">GstGLMemory</span></a>. This version will account for padding |
| added to the allocation and expressed through <em class="parameter"><code>valign</code></em> |
| .</p> |
| <div class="refsect3"> |
| <a name="id-1.2.9.17.8.4.5"></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>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> |
| <tr> |
| <td class="parameter_name"><p>info</p></td> |
| <td class="parameter_description"><p>the <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> of the memory and data</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>plane</p></td> |
| <td class="parameter_description"><p>the plane this memory will represent</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>valign</p></td> |
| <td class="parameter_description"><p>the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstvideo.html#GstVideoAlignment"><span class="type">GstVideoAlignment</span></a> applied to <em class="parameter"><code>info</code></em> |
| </p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>data</p></td> |
| <td class="parameter_description"><p>the data to wrap</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>user_data</p></td> |
| <td class="parameter_description"><p>data called with for <em class="parameter"><code>notify</code></em> |
| </p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>notify</p></td> |
| <td class="parameter_description"><p>function called with <em class="parameter"><code>user_data</code></em> |
| when <em class="parameter"><code>data</code></em> |
| needs to be freed</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.2.9.17.8.4.6"></a><h4>Returns</h4> |
| <p> a <a class="link" href="gst-plugins-bad-libs-gstglmemory.html#GstGLMemory" title="GstGLMemory"><span class="type">GstGLMemory</span></a> object with a GL texture specified by <em class="parameter"><code>v_info</code></em> |
| from <em class="parameter"><code>context</code></em> |
| and contents specified by <em class="parameter"><code>data</code></em> |
| </p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-gl-memory-wrapped-texture"></a><h3>gst_gl_memory_wrapped_texture ()</h3> |
| <pre class="programlisting"><a class="link" href="gst-plugins-bad-libs-gstglmemory.html#GstGLMemory" title="GstGLMemory"><span class="returnvalue">GstGLMemory</span></a> * |
| gst_gl_memory_wrapped_texture (<em class="parameter"><code><a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a> *context</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> texture_id</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> texture_target</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> *info</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> plane</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#GstVideoAlignment"><span class="type">GstVideoAlignment</span></a> *valign</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> user_data</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Datasets.html#GDestroyNotify"><span class="type">GDestroyNotify</span></a> notify</code></em>);</pre> |
| <p>Wraps a texture handle into a <a class="link" href="gst-plugins-bad-libs-gstglmemory.html#GstGLMemory" title="GstGLMemory"><span class="type">GstGLMemory</span></a>.</p> |
| <div class="refsect3"> |
| <a name="id-1.2.9.17.8.5.5"></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>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> |
| <tr> |
| <td class="parameter_name"><p>texture_id</p></td> |
| <td class="parameter_description"><p>the GL texture handle</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>info</p></td> |
| <td class="parameter_description"><p>the <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> of the memory</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>plane</p></td> |
| <td class="parameter_description"><p>The plane this memory will represent</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>user_data</p></td> |
| <td class="parameter_description"><p>user data</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>notify</p></td> |
| <td class="parameter_description"><p>Destroy callback for the user data</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.2.9.17.8.5.6"></a><h4>Returns</h4> |
| <p> a newly allocated <a class="link" href="gst-plugins-bad-libs-gstglmemory.html#GstGLMemory" title="GstGLMemory"><span class="type">GstGLMemory</span></a></p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-gl-memory-copy-into-texture"></a><h3>gst_gl_memory_copy_into_texture ()</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_memory_copy_into_texture (<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-gstglmemory.html#GstGLMemory" title="GstGLMemory"><span class="type">GstGLMemory</span></a> *gl_mem</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> tex_id</code></em>, |
| <em class="parameter"><code><span class="type">GstVideoGLTextureType</span> tex_type</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> width</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> height</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> stride</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> respecify</code></em>);</pre> |
| <p>Copies <em class="parameter"><code>gl_mem</code></em> |
| into the texture specfified by <em class="parameter"><code>tex_id</code></em> |
| . The format of <em class="parameter"><code>tex_id</code></em> |
| |
| is specified by <em class="parameter"><code>tex_type</code></em> |
| , <em class="parameter"><code>width</code></em> |
| and <em class="parameter"><code>height</code></em> |
| .</p> |
| <p>If <em class="parameter"><code>respecify</code></em> |
| is <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>, then the copy is performed in terms of the texture |
| data. This is useful for splitting RGBA textures into RG or R textures or |
| vice versa. The requirement for this to succeed is that the backing texture |
| data must be the same size, i.e. say a RGBA8 texture is converted into a RG8 |
| texture, then the RG texture must have twice as many pixels available for |
| output as the RGBA texture.</p> |
| <p>Otherwise, if <em class="parameter"><code>respecify</code></em> |
| is <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a>, then the copy is performed per texel |
| using glCopyTexImage. See the OpenGL specification for details on the |
| mappings between texture formats.</p> |
| <div class="refsect3"> |
| <a name="id-1.2.9.17.8.6.7"></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>gl_mem</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="gst-plugins-bad-libs-gstglmemory.html#GstGLMemory" title="GstGLMemory"><span class="type">GstGLMemory</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>tex_id</p></td> |
| <td class="parameter_description"><p>OpenGL texture id</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>tex_type</p></td> |
| <td class="parameter_description"><p>a <span class="type">GstVideoGLTextureType</span></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>width</p></td> |
| <td class="parameter_description"><p>width of <em class="parameter"><code>tex_id</code></em> |
| </p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>height</p></td> |
| <td class="parameter_description"><p>height of <em class="parameter"><code>tex_id</code></em> |
| </p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>stride</p></td> |
| <td class="parameter_description"><p>stride of the backing texture data</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>respecify</p></td> |
| <td class="parameter_description"><p>whether to copy the data or copy per texel</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.2.9.17.8.6.8"></a><h4>Returns</h4> |
| <p> Whether the copy suceeded</p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-gl-memory-setup-buffer"></a><h3>gst_gl_memory_setup_buffer ()</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_memory_setup_buffer (<em class="parameter"><code><a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a> *context</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstAllocator.html#GstAllocationParams"><span class="type">GstAllocationParams</span></a> *params</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> *info</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#GstVideoAlignment"><span class="type">GstVideoAlignment</span></a> *valign</code></em>, |
| <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBuffer.html"><span class="type">GstBuffer</span></a> *buffer</code></em>);</pre> |
| <p>Adds the required <a class="link" href="gst-plugins-bad-libs-gstglmemory.html#GstGLMemory" title="GstGLMemory"><span class="type">GstGLMemory</span></a>s with the correct configuration to |
| <em class="parameter"><code>buffer</code></em> |
| based on <em class="parameter"><code>info</code></em> |
| . This version handles padding through <em class="parameter"><code>valign</code></em> |
| .</p> |
| <div class="refsect3"> |
| <a name="id-1.2.9.17.8.7.5"></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>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> |
| <tr> |
| <td class="parameter_name"><p>params</p></td> |
| <td class="parameter_description"><p>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstAllocator.html#GstAllocationParams"><span class="type">GstAllocationParams</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>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> |
| <tr> |
| <td class="parameter_name"><p>valign</p></td> |
| <td class="parameter_description"><p>the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstvideo.html#GstVideoAlignment"><span class="type">GstVideoAlignment</span></a> applied to <em class="parameter"><code>info</code></em> |
| </p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>buffer</p></td> |
| <td class="parameter_description"><p>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBuffer.html"><span class="type">GstBuffer</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.2.9.17.8.7.6"></a><h4>Returns</h4> |
| <p> whether the memory's were sucessfully added.</p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-gl-memory-setup-wrapped"></a><h3>gst_gl_memory_setup_wrapped ()</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_memory_setup_wrapped (<em class="parameter"><code><a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a> *context</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> *info</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#GstVideoAlignment"><span class="type">GstVideoAlignment</span></a> *valign</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>, |
| <em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-gstglmemory.html#GstGLMemory" title="GstGLMemory"><span class="type">GstGLMemory</span></a> *textures[GST_VIDEO_MAX_PLANES]</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> user_data</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Datasets.html#GDestroyNotify"><span class="type">GDestroyNotify</span></a> notify</code></em>);</pre> |
| <p>Wraps per plane data pointer in <em class="parameter"><code>data</code></em> |
| into the corresponding entry in |
| <em class="parameter"><code>textures</code></em> |
| based on <em class="parameter"><code>info</code></em> |
| and padding from <em class="parameter"><code>valign</code></em> |
| . Note that the <em class="parameter"><code>notify</code></em> |
| |
| will be called as many time as there is planes.</p> |
| <div class="refsect3"> |
| <a name="id-1.2.9.17.8.8.5"></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>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> |
| <tr> |
| <td class="parameter_name"><p>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> |
| <tr> |
| <td class="parameter_name"><p>valign</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> |
| <tr> |
| <td class="parameter_name"><p>data</p></td> |
| <td class="parameter_description"><p>a list of per plane data pointers</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>textures</p></td> |
| <td class="parameter_description"><p> a list of <a class="link" href="gst-plugins-bad-libs-gstglmemory.html#GstGLMemory" title="GstGLMemory"><span class="type">GstGLMemory</span></a>. </p></td> |
| <td class="parameter_annotations"><span class="annotation">[transfer out]</span></td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>user_data</p></td> |
| <td class="parameter_description"><p>user data for the destroy function</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>notify</p></td> |
| <td class="parameter_description"><p>A function called each time a memory is freed</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.2.9.17.8.8.6"></a><h4>Returns</h4> |
| <p> whether the memory's were sucessfully created.</p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-gl-texture-type-from-format"></a><h3>gst_gl_texture_type_from_format ()</h3> |
| <pre class="programlisting"><span class="returnvalue">GstVideoGLTextureType</span> |
| gst_gl_texture_type_from_format (<em class="parameter"><code><a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a> *context</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#GstVideoFormat"><span class="type">GstVideoFormat</span></a> v_format</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> plane</code></em>);</pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-is-gl-memory"></a><h3>gst_is_gl_memory ()</h3> |
| <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| gst_is_gl_memory (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstMemory.html"><span class="type">GstMemory</span></a> *mem</code></em>);</pre> |
| <div class="refsect3"> |
| <a name="id-1.2.9.17.8.10.4"></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>mem</p></td> |
| <td class="parameter_description"><p>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstMemory.html"><span class="type">GstMemory</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.2.9.17.8.10.5"></a><h4>Returns</h4> |
| <p> whether the memory at <em class="parameter"><code>mem</code></em> |
| is a <a class="link" href="gst-plugins-bad-libs-gstglmemory.html#GstGLMemory" title="GstGLMemory"><span class="type">GstGLMemory</span></a></p> |
| </div> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-libs-gstglmemory.other_details"></a><h2>Types and Values</h2> |
| <div class="refsect2"> |
| <a name="GstGLAllocator-struct"></a><h3>GstGLAllocator</h3> |
| <pre class="programlisting">typedef struct _GstGLAllocator GstGLAllocator;</pre> |
| <p>Opaque <a class="link" href="gst-plugins-bad-libs-gstglmemory.html#GstGLAllocator"><span class="type">GstGLAllocator</span></a> struct</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstGLAllocatorClass"></a><h3>GstGLAllocatorClass</h3> |
| <pre class="programlisting">typedef struct { |
| GstGLBaseBufferAllocatorClass parent_class; |
| } GstGLAllocatorClass; |
| </pre> |
| <p>The <a class="link" href="gst-plugins-bad-libs-gstglmemory.html#GstGLAllocatorClass" title="GstGLAllocatorClass"><span class="type">GstGLAllocatorClass</span></a> only contains private data</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-GL-MEMORY-ALLOCATOR:CAPS"></a><h3>GST_GL_MEMORY_ALLOCATOR</h3> |
| <pre class="programlisting">#define GST_GL_MEMORY_ALLOCATOR "GLMemory" |
| </pre> |
| <p>The name of the GL memory allocator</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstGLMemory"></a><h3>GstGLMemory</h3> |
| <pre class="programlisting">typedef struct { |
| GstGLBaseBuffer mem; |
| |
| guint tex_id; |
| guint tex_target; |
| GstVideoGLTextureType tex_type; |
| GstVideoInfo info; |
| GstVideoAlignment valign; |
| guint plane; |
| gfloat tex_scaling[2]; |
| } GstGLMemory; |
| </pre> |
| <p>Represents information about a GL texture</p> |
| <div class="refsect3"> |
| <a name="id-1.2.9.17.9.5.5"></a><h4>Members</h4> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="300px" class="struct_members_name"> |
| <col class="struct_members_description"> |
| <col width="200px" class="struct_members_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="struct_member_name"><p><span class="type">GstGLBaseBuffer</span> <em class="structfield"><code><a name="GstGLMemory.mem"></a>mem</code></em>;</p></td> |
| <td class="struct_member_description"><p>the parent object</p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="struct_member_name"><p><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstGLMemory.tex-id"></a>tex_id</code></em>;</p></td> |
| <td class="struct_member_description"><p>the GL texture id for this memory</p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="struct_member_name"><p><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstGLMemory.tex-target"></a>tex_target</code></em>;</p></td> |
| <td class="struct_member_description"><p>the GL texture target for this memory</p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="struct_member_name"><p><span class="type">GstVideoGLTextureType</span> <em class="structfield"><code><a name="GstGLMemory.tex-type"></a>tex_type</code></em>;</p></td> |
| <td class="struct_member_description"><p>the texture type</p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="struct_member_name"><p><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> <em class="structfield"><code><a name="GstGLMemory.info"></a>info</code></em>;</p></td> |
| <td class="struct_member_description"><p>the texture's <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="struct_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="struct_member_name"><p><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstvideo.html#GstVideoAlignment"><span class="type">GstVideoAlignment</span></a> <em class="structfield"><code><a name="GstGLMemory.valign"></a>valign</code></em>;</p></td> |
| <td class="struct_member_description"><p>data alignment for system memory mapping</p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="struct_member_name"><p><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstGLMemory.plane"></a>plane</code></em>;</p></td> |
| <td class="struct_member_description"><p>data plane in <em class="parameter"><code>info</code></em> |
| </p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="struct_member_name"><p><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gfloat"><span class="type">gfloat</span></a> <em class="structfield"><code><a name="GstGLMemory.tex-scaling"></a>tex_scaling</code></em>[2];</p></td> |
| <td class="struct_member_description"><p>GL shader scaling parameters for <em class="parameter"><code>valign</code></em> |
| and/or width/height</p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-libs-gstglmemory.see-also"></a><h2>See Also</h2> |
| <p><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstMemory.html"><span class="type">GstMemory</span></a>, <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstAllocator.html"><span class="type">GstAllocator</span></a>, <a class="link" href="GstGLBufferPool.html" title="GstGLBufferPool"><span class="type">GstGLBufferPool</span></a></p> |
| </div> |
| </div> |
| <div class="footer"> |
| <hr>Generated by GTK-Doc V1.24</div> |
| </body> |
| </html> |
