static void
gst_gl_filter_cube_class_init (GstGLFilterCubeClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
gobject_class = (GObjectClass *) klass;
element_class = GST_ELEMENT_CLASS (klass);
gobject_class->set_property = gst_gl_filter_cube_set_property;
gobject_class->get_property = gst_gl_filter_cube_get_property;
GST_GL_BASE_FILTER_CLASS (klass)->gl_start = gst_gl_filter_cube_gl_start;
GST_GL_BASE_FILTER_CLASS (klass)->gl_stop = gst_gl_filter_cube_gl_stop;
GST_GL_FILTER_CLASS (klass)->set_caps = gst_gl_filter_cube_set_caps;
GST_GL_FILTER_CLASS (klass)->filter_texture =
gst_gl_filter_cube_filter_texture;
g_object_class_install_property (gobject_class, PROP_RED,
g_param_spec_float ("red", "Red", "Background red color",
0.0f, 1.0f, 0.0f, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_GREEN,
g_param_spec_float ("green", "Green", "Background green color",
0.0f, 1.0f, 0.0f, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_BLUE,
g_param_spec_float ("blue", "Blue", "Background blue color",
0.0f, 1.0f, 0.0f, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_FOVY,
g_param_spec_double ("fovy", "Fovy", "Field of view angle in degrees",
0.0, 180.0, 45.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_ASPECT,
g_param_spec_double ("aspect", "Aspect",
"Field of view in the x direction", 0.0, 100, 0.0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_ZNEAR,
g_param_spec_double ("znear", "Znear",
"Specifies the distance from the viewer to the near clipping plane",
0.0, 100.0, 0.1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_ZFAR,
g_param_spec_double ("zfar", "Zfar",
"Specifies the distance from the viewer to the far clipping plane",
0.0, 1000.0, 100.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_set_metadata (element_class, "OpenGL cube filter",
"Filter/Effect/Video", "Map input texture on the 6 cube faces",
"Julien Isorce <*****@*****.**>");
GST_GL_BASE_FILTER_CLASS (klass)->supported_gl_api =
GST_GL_API_OPENGL | GST_GL_API_GLES2 | GST_GL_API_OPENGL3;
}
static void
gst_gl_colorscale_class_init (GstGLColorscaleClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
GstGLFilterClass *filter_class;
GstBaseTransformClass *basetransform_class = GST_BASE_TRANSFORM_CLASS (klass);
gobject_class = (GObjectClass *) klass;
element_class = GST_ELEMENT_CLASS (klass);
filter_class = GST_GL_FILTER_CLASS (klass);
gobject_class->set_property = gst_gl_colorscale_set_property;
gobject_class->get_property = gst_gl_colorscale_get_property;
gst_element_class_set_metadata (element_class, "OpenGL color scale",
"Filter/Effect/Video", "Colorspace converter and video scaler",
"Julien Isorce <*****@*****.**>");
filter_class->init_fbo =
GST_DEBUG_FUNCPTR (gst_gl_colorscale_gen_gl_resources);
filter_class->filter_texture = gst_gl_colorscale_filter_texture;
basetransform_class->stop =
GST_DEBUG_FUNCPTR (gst_gl_colorscale_del_gl_resources);
basetransform_class->passthrough_on_same_caps = TRUE;
GST_GL_BASE_FILTER_CLASS (klass)->supported_gl_api =
GST_GL_API_OPENGL | GST_GL_API_OPENGL3 | GST_GL_API_GLES2;
}
static void
gst_vr_compositor_class_init (GstVRCompositorClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
GstBaseTransformClass *base_transform_class;
gobject_class = (GObjectClass *) klass;
element_class = GST_ELEMENT_CLASS (klass);
base_transform_class = GST_BASE_TRANSFORM_CLASS (klass);
gobject_class->set_property = gst_vr_compositor_set_property;
gobject_class->get_property = gst_vr_compositor_get_property;
base_transform_class->src_event = gst_vr_compositor_src_event;
gst_gl_filter_add_rgba_pad_templates (GST_GL_FILTER_CLASS (klass));
GST_GL_FILTER_CLASS (klass)->init_fbo = gst_vr_compositor_init_scene;
// GST_GL_FILTER_CLASS (klass)->display_reset_cb = gst_vr_compositor_reset_gl;
GST_GL_FILTER_CLASS (klass)->set_caps = gst_vr_compositor_set_caps;
GST_GL_FILTER_CLASS (klass)->filter_texture =
gst_vr_compositor_filter_texture;
GST_BASE_TRANSFORM_CLASS (klass)->stop = gst_vr_compositor_stop;
gst_element_class_set_metadata (element_class, "VR compositor",
"Filter/Effect/Video", "Transform video for VR",
"Lubosz Sarnecki <*****@*****.**>\n");
GST_GL_BASE_FILTER_CLASS (klass)->supported_gl_api = GST_GL_API_OPENGL3;
}
static void
gst_gl_deinterlace_class_init (GstGLDeinterlaceClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
gobject_class = (GObjectClass *) klass;
element_class = GST_ELEMENT_CLASS (klass);
gobject_class->set_property = gst_gl_deinterlace_set_property;
gobject_class->get_property = gst_gl_deinterlace_get_property;
gst_element_class_set_metadata (element_class,
"OpenGL deinterlacing filter", "Deinterlace",
"Deinterlacing based on fragment shaders",
"Julien Isorce <*****@*****.**>");
GST_BASE_TRANSFORM_CLASS (klass)->stop = gst_gl_deinterlace_reset;
GST_GL_FILTER_CLASS (klass)->filter = gst_gl_deinterlace_filter;
GST_GL_FILTER_CLASS (klass)->filter_texture =
gst_gl_deinterlace_filter_texture;
GST_GL_FILTER_CLASS (klass)->init_fbo = gst_gl_deinterlace_init_shader;
GST_GL_BASE_FILTER_CLASS (klass)->supported_gl_api = GST_GL_API_OPENGL;
}
static void
gst_gl_differencematte_class_init (GstGLDifferenceMatteClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
gobject_class = (GObjectClass *) klass;
element_class = GST_ELEMENT_CLASS (klass);
gobject_class->set_property = gst_gl_differencematte_set_property;
gobject_class->get_property = gst_gl_differencematte_get_property;
GST_GL_FILTER_CLASS (klass)->filter_texture =
gst_gl_differencematte_filter_texture;
GST_GL_FILTER_CLASS (klass)->display_init_cb =
gst_gl_differencematte_init_gl_resources;
GST_GL_FILTER_CLASS (klass)->display_reset_cb =
gst_gl_differencematte_reset_gl_resources;
g_object_class_install_property (gobject_class,
PROP_LOCATION,
g_param_spec_string ("location",
"Background image location",
"Background image location", NULL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_set_metadata (element_class,
"Gstreamer OpenGL DifferenceMatte", "Filter/Effect/Video",
"Saves a background frame and replace it with a pixbuf",
"Filippo Argiolas <*****@*****.**>");
GST_GL_BASE_FILTER_CLASS (klass)->supported_gl_api =
GST_GL_API_OPENGL | GST_GL_API_OPENGL3 | GST_GL_API_GLES2;
}
static void
gst_gl_filter_cube_gl_stop (GstGLBaseFilter * base_filter)
{
GstGLFilterCube *cube_filter = GST_GL_FILTER_CUBE (base_filter);
const GstGLFuncs *gl = base_filter->context->gl_vtable;
if (cube_filter->vao) {
gl->DeleteVertexArrays (1, &cube_filter->vao);
cube_filter->vao = 0;
}
if (cube_filter->vertex_buffer) {
gl->DeleteBuffers (1, &cube_filter->vertex_buffer);
cube_filter->vertex_buffer = 0;
}
if (cube_filter->vbo_indices) {
gl->DeleteBuffers (1, &cube_filter->vbo_indices);
cube_filter->vbo_indices = 0;
}
if (cube_filter->shader) {
gst_object_unref (cube_filter->shader);
cube_filter->shader = NULL;
}
GST_GL_BASE_FILTER_CLASS (parent_class)->gl_stop (base_filter);
}
static gboolean
gst_gl_alpha_gl_start (GstGLBaseFilter * base_filter)
{
GstGLAlpha *alpha = GST_GL_ALPHA (base_filter);
if (!_create_shader (alpha))
return FALSE;
return GST_GL_BASE_FILTER_CLASS (parent_class)->gl_start (base_filter);
}
static void
gst_gl_filtershader_gl_stop (GstGLBaseFilter * base)
{
GstGLFilterShader *filtershader = GST_GL_FILTERSHADER (base);
if (filtershader->shader)
gst_object_unref (filtershader->shader);
filtershader->shader = NULL;
GST_GL_BASE_FILTER_CLASS (parent_class)->gl_stop (base);
}
static void
gst_gl_colorscale_gl_stop (GstGLBaseFilter * base_filter)
{
GstGLColorscale *colorscale = GST_GL_COLORSCALE (base_filter);
if (colorscale->shader) {
gst_object_unref (colorscale->shader);
colorscale->shader = NULL;
}
return GST_GL_BASE_FILTER_CLASS (parent_class)->gl_stop (base_filter);
}
static void
gst_gl_alpha_gl_stop (GstGLBaseFilter * base_filter)
{
GstGLAlpha *alpha = GST_GL_ALPHA (base_filter);
if (alpha->alpha_shader)
gst_object_unref (alpha->alpha_shader);
alpha->alpha_shader = NULL;
if (alpha->chroma_key_shader)
gst_object_unref (alpha->chroma_key_shader);
alpha->chroma_key_shader = NULL;
GST_GL_BASE_FILTER_CLASS (parent_class)->gl_stop (base_filter);
}
static void
gst_gl_deinterlace_class_init (GstGLDeinterlaceClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
gobject_class = (GObjectClass *) klass;
element_class = GST_ELEMENT_CLASS (klass);
gst_gl_filter_add_rgba_pad_templates (GST_GL_FILTER_CLASS (klass));
gobject_class->set_property = gst_gl_deinterlace_set_property;
gobject_class->get_property = gst_gl_deinterlace_get_property;
gst_element_class_set_metadata (element_class,
"OpenGL deinterlacing filter", "Deinterlace",
"Deinterlacing based on fragment shaders",
"Julien Isorce <*****@*****.**>");
g_object_class_install_property (gobject_class,
PROP_METHOD,
g_param_spec_enum ("method",
"Deinterlace Method",
"Select which deinterlace method apply to GL video texture",
GST_TYPE_GL_DEINTERLACE_METHODS,
GST_GL_DEINTERLACE_VFIR, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
GST_BASE_TRANSFORM_CLASS (klass)->start = gst_gl_deinterlace_start;
GST_BASE_TRANSFORM_CLASS (klass)->stop = gst_gl_deinterlace_reset;
GST_GL_FILTER_CLASS (klass)->filter = gst_gl_deinterlace_filter;
GST_GL_FILTER_CLASS (klass)->filter_texture =
gst_gl_deinterlace_filter_texture;
GST_GL_FILTER_CLASS (klass)->init_fbo = gst_gl_deinterlace_init_fbo;
GST_GL_BASE_FILTER_CLASS (klass)->supported_gl_api =
GST_GL_API_OPENGL | GST_GL_API_GLES2 | GST_GL_API_OPENGL3;
}
static void
gst_gl_filter_glass_class_init (GstGLFilterGlassClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
gobject_class = (GObjectClass *) klass;
element_class = GST_ELEMENT_CLASS (klass);
gobject_class->set_property = gst_gl_filter_glass_set_property;
gobject_class->get_property = gst_gl_filter_glass_get_property;
gst_element_class_set_metadata (element_class, "OpenGL glass filter",
"Filter/Effect/Video", "Glass Filter",
"Julien Isorce <*****@*****.**>");
GST_GL_FILTER_CLASS (klass)->filter_texture =
gst_gl_filter_glass_filter_texture;
GST_GL_FILTER_CLASS (klass)->init_fbo = gst_gl_filter_glass_init_shader;
GST_BASE_TRANSFORM_CLASS (klass)->stop = gst_gl_filter_glass_reset;
GST_GL_BASE_FILTER_CLASS (klass)->supported_gl_api = GST_GL_API_OPENGL;
}
static gboolean
gst_gl_colorscale_gl_start (GstGLBaseFilter * base_filter)
{
GstGLColorscale *colorscale = GST_GL_COLORSCALE (base_filter);
GstGLFilter *filter = GST_GL_FILTER (base_filter);
GstGLShader *shader;
GError *error = NULL;
if (!(shader = gst_gl_shader_new_default (base_filter->context, &error))) {
GST_ERROR_OBJECT (colorscale, "Failed to initialize shader: %s",
error->message);
gst_object_unref (shader);
return FALSE;
}
filter->draw_attr_position_loc =
gst_gl_shader_get_attribute_location (shader, "a_position");
filter->draw_attr_texture_loc =
gst_gl_shader_get_attribute_location (shader, "a_texcoord");
colorscale->shader = shader;
return GST_GL_BASE_FILTER_CLASS (parent_class)->gl_start (base_filter);
}
static gboolean
gst_gl_filtershader_gl_start (GstGLBaseFilter * base)
{
return GST_GL_BASE_FILTER_CLASS (parent_class)->gl_start (base);
}
static void
gst_gl_filtershader_class_init (GstGLFilterShaderClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
gobject_class = (GObjectClass *) klass;
element_class = GST_ELEMENT_CLASS (klass);
gst_gl_filter_add_rgba_pad_templates (GST_GL_FILTER_CLASS (klass));
gobject_class->finalize = gst_gl_filtershader_finalize;
gobject_class->set_property = gst_gl_filtershader_set_property;
gobject_class->get_property = gst_gl_filtershader_get_property;
g_object_class_install_property (gobject_class, PROP_SHADER,
g_param_spec_object ("shader", "Shader object",
"GstGLShader to use", GST_TYPE_GL_SHADER,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_VERTEX,
g_param_spec_string ("vertex", "Vertex Source",
"GLSL vertex source", NULL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_FRAGMENT,
g_param_spec_string ("fragment", "Fragment Source",
"GLSL fragment source", NULL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/* FIXME: add other stages */
g_object_class_install_property (gobject_class, PROP_UNIFORMS,
g_param_spec_boxed ("uniforms", "GLSL Uniforms",
"GLSL Uniforms", GST_TYPE_STRUCTURE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_UPDATE_SHADER,
g_param_spec_boolean ("update-shader", "Update Shader",
"Emit the \'create-shader\' signal for the next frame",
FALSE, G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS));
/*
* GstGLFilterShader::create-shader:
* @object: the #GstGLFilterShader
*
* Ask's the application for a shader to render with as a result of
* inititialization or setting the 'update-shader' property.
*
* Returns: a new #GstGLShader for use in the rendering pipeline
*/
gst_gl_shader_signals[SIGNAL_CREATE_SHADER] =
g_signal_new ("create-shader", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, 0, NULL, NULL, g_cclosure_marshal_generic,
GST_TYPE_GL_SHADER, 0);
gst_element_class_set_metadata (element_class,
"OpenGL fragment shader filter", "Filter/Effect",
"Perform operations with a GLSL shader", "<*****@*****.**>");
GST_GL_FILTER_CLASS (klass)->filter = gst_gl_filtershader_filter;
GST_GL_FILTER_CLASS (klass)->filter_texture =
gst_gl_filtershader_filter_texture;
GST_GL_BASE_FILTER_CLASS (klass)->gl_start = gst_gl_filtershader_gl_start;
GST_GL_BASE_FILTER_CLASS (klass)->gl_stop = gst_gl_filtershader_gl_stop;
GST_GL_BASE_FILTER_CLASS (klass)->supported_gl_api =
GST_GL_API_OPENGL | GST_GL_API_GLES2 | GST_GL_API_OPENGL3;
}
static void
gst_gl_transformation_class_init (GstGLTransformationClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
gobject_class = (GObjectClass *) klass;
element_class = GST_ELEMENT_CLASS (klass);
gobject_class->set_property = gst_gl_transformation_set_property;
gobject_class->get_property = gst_gl_transformation_get_property;
GST_GL_FILTER_CLASS (klass)->init_fbo = gst_gl_transformation_init_shader;
GST_GL_FILTER_CLASS (klass)->display_reset_cb =
gst_gl_transformation_reset_gl;
GST_GL_FILTER_CLASS (klass)->set_caps = gst_gl_transformation_set_caps;
GST_GL_FILTER_CLASS (klass)->filter_texture =
gst_gl_transformation_filter_texture;
GST_BASE_TRANSFORM_CLASS (klass)->stop = gst_gl_transformation_stop;
g_object_class_install_property (gobject_class, PROP_FOV,
g_param_spec_float ("fov", "Fov", "Field of view angle in degrees",
0.0, G_MAXFLOAT, 90.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_ORTHO,
g_param_spec_boolean ("ortho", "Orthographic",
"Use orthographic projection", FALSE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/* Rotation */
g_object_class_install_property (gobject_class, PROP_ROTATION_X,
g_param_spec_float ("rotation-x", "X Rotation",
"Rotates the video around the X-Axis in degrees.",
-G_MAXFLOAT, G_MAXFLOAT, 0.0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_ROTATION_Y,
g_param_spec_float ("rotation-y", "Y Rotation",
"Rotates the video around the Y-Axis in degrees.",
-G_MAXFLOAT, G_MAXFLOAT, 0.0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_ROTATION_Z,
g_param_spec_float ("rotation-z", "Z Rotation",
"Rotates the video around the Z-Axis in degrees.",
-G_MAXFLOAT, G_MAXFLOAT, 0.0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/* Translation */
g_object_class_install_property (gobject_class, PROP_TRANSLATION_X,
g_param_spec_float ("translation-x", "X Translation",
"Translates the video at the X-Axis, in universal [0-1] coordinate.",
-G_MAXFLOAT, G_MAXFLOAT, 0.0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_TRANSLATION_Y,
g_param_spec_float ("translation-y", "Y Translation",
"Translates the video at the Y-Axis, in universal [0-1] coordinate.",
-G_MAXFLOAT, G_MAXFLOAT, 0.0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_TRANSLATION_Z,
g_param_spec_float ("translation-z", "Z Translation",
"Translates the video at the Z-Axis, in universal [0-1] coordinate.",
-G_MAXFLOAT, G_MAXFLOAT, 0.0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/* Scale */
g_object_class_install_property (gobject_class, PROP_SCALE_X,
g_param_spec_float ("scale-x", "X Scale",
"Scale multiplier for the X-Axis.",
0.0, G_MAXFLOAT, 1.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_SCALE_Y,
g_param_spec_float ("scale-y", "Y Scale",
"Scale multiplier for the Y-Axis.",
0.0, G_MAXFLOAT, 1.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/* MVP */
g_object_class_install_property (gobject_class, PROP_MVP,
g_param_spec_boxed ("mvp-matrix",
"Modelview Projection Matrix",
"The final Graphene 4x4 Matrix for transformation",
GRAPHENE_TYPE_MATRIX, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
gst_element_class_set_metadata (element_class, "OpenGL transformation filter",
"Filter/Effect/Video", "Transform video on the GPU",
"Lubosz Sarnecki <*****@*****.**>");
GST_GL_BASE_FILTER_CLASS (klass)->supported_gl_api =
GST_GL_API_OPENGL | GST_GL_API_OPENGL3 | GST_GL_API_GLES2;
}
