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<h2><span class="refentrytitle"><a name="gst-plugins-base-plugins-gltransformation.top_of_page"></a>gltransformation</span></h2>
<p>gltransformation</p>
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<a name="gst-plugins-base-plugins-gltransformation.other"></a><h2>Types and Values</h2>
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<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="gst-plugins-base-plugins-gltransformation.html#GstGLTransformation" title="struct GstGLTransformation">GstGLTransformation</a></td>
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<div class="refsect1">
<a name="gst-plugins-base-plugins-gltransformation.description"></a><h2>Description</h2>
<p>Transforms video on the GPU.</p>
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<a name="id-1.2.61.4.3"></a><h4>Examples</h4>
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<td class="listing_lines" align="right"><pre>1</pre></td>
<td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> gltestsrc <span class="gtkdoc opt">!</span> gltransformation rotation<span class="gtkdoc opt">-</span>z<span class="gtkdoc opt">=</span><span class="number">45</span> <span class="gtkdoc opt">!</span> glimagesink</pre></td>
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<p> A pipeline to rotate by 45 degrees</p>
<div class="informalexample">
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<td class="listing_lines" align="right"><pre>1</pre></td>
<td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> gltestsrc <span class="gtkdoc opt">!</span> gltransformation translation<span class="gtkdoc opt">-</span>x<span class="gtkdoc opt">=</span><span class="number">0.5</span> <span class="gtkdoc opt">!</span> glimagesink</pre></td>
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<p> Translate the video by 0.5</p>
<div class="informalexample">
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<td class="listing_lines" align="right"><pre>1</pre></td>
<td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> gltestsrc <span class="gtkdoc opt">!</span> gltransformation scale<span class="gtkdoc opt">-</span>y<span class="gtkdoc opt">=</span><span class="number">0.5</span> scale<span class="gtkdoc opt">-</span>x<span class="gtkdoc opt">=</span><span class="number">0.5</span> <span class="gtkdoc opt">!</span> glimagesink</pre></td>
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<p> Resize the video by 0.5</p>
<div class="informalexample">
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<td class="listing_lines" align="right"><pre>1</pre></td>
<td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> gltestsrc <span class="gtkdoc opt">!</span> gltransformation rotation<span class="gtkdoc opt">-</span>x<span class="gtkdoc opt">=-</span><span class="number">45</span> ortho<span class="gtkdoc opt">=</span>True <span class="gtkdoc opt">!</span> glimagesink</pre></td>
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<p> Rotate the video around the X-Axis by -45° with an orthographic projection</p>
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<div class="refsect1">
<a name="gst-plugins-base-plugins-gltransformation.functions_details"></a><h2>Functions</h2>
<p></p>
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<div class="refsect1">
<a name="gst-plugins-base-plugins-gltransformation.other_details"></a><h2>Types and Values</h2>
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<a name="GstGLTransformation"></a><h3>struct GstGLTransformation</h3>
<pre class="programlisting">struct GstGLTransformation {
GstGLFilter filter;
GstGLShader *shader;
GLuint vao;
GLuint vbo_indices;
GLuint vertex_buffer;
GLint attr_position;
GLint attr_texture;
GstGLMemory *in_tex;
GstGLMemory *out_tex;
gfloat xrotation;
gfloat yrotation;
gfloat zrotation;
gfloat xscale;
gfloat yscale;
gfloat xtranslation;
gfloat ytranslation;
gfloat ztranslation;
gfloat xpivot;
gfloat ypivot;
gfloat zpivot;
/* perspective */
gfloat fov;
gfloat aspect;
gfloat znear;
gfloat zfar;
gboolean ortho;
graphene_matrix_t model_matrix;
graphene_matrix_t view_matrix;
graphene_matrix_t projection_matrix;
graphene_matrix_t inv_model_matrix;
graphene_matrix_t inv_view_matrix;
graphene_matrix_t inv_projection_matrix;
graphene_matrix_t mvp_matrix;
graphene_vec3_t camera_position;
gboolean downstream_supports_affine_meta;
gboolean caps_change;
};
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