/*
* GStreamer
* Copyright (C) 2008 Filippo Argiolas <filippo.argiolas@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/**
* SECTION:element-gleffects.
* @title: gleffects.
*
* GL Shading Language effects.
*
* ## Examples
* |[
* gst-launch-1.0 videotestsrc ! glupload ! gleffects effect=5 ! glimagesink
* ]|
* FBO (Frame Buffer Object) and GLSL (OpenGL Shading Language) are required.
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstgleffects.h"
#define GST_CAT_DEFAULT gst_gl_effects_debug
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
enum
{
PROP_0 = 0x0,
PROP_EFFECT = 0x1 << 1,
PROP_HSWAP = 0x1 << 2,
PROP_INVERT = 0x1 << 3
};
#define DEBUG_INIT \
GST_DEBUG_CATEGORY_INIT (gst_gl_effects_debug, "gleffects", 0, "gleffects element");
#define gst_gl_effects_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstGLEffects, gst_gl_effects, GST_TYPE_GL_FILTER,
DEBUG_INIT);
static void gst_gl_effects_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_gl_effects_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static gboolean gst_gl_effects_init_resources (GstBaseTransform * trans);
static gboolean gst_gl_effects_reset_resources (GstBaseTransform * trans);
static gboolean gst_gl_effects_on_init_gl_context (GstGLFilter * filter);
static void gst_gl_effects_ghash_func_clean (gpointer key, gpointer value,
gpointer data);
static gboolean gst_gl_effects_filter_texture (GstGLFilter * filter,
GstGLMemory * in_tex, GstGLMemory * out_tex);
static gboolean gst_gl_effects_filters_is_property_supported (const
GstGLEffectsFilterDescriptor *, gint property);
/* dont' forget to edit the following when a new effect is added */
typedef enum
{
GST_GL_EFFECT_IDENTITY,
GST_GL_EFFECT_MIRROR,
GST_GL_EFFECT_SQUEEZE,
GST_GL_EFFECT_STRETCH,
GST_GL_EFFECT_TUNNEL,
GST_GL_EFFECT_FISHEYE,
GST_GL_EFFECT_TWIRL,
GST_GL_EFFECT_BULGE,
GST_GL_EFFECT_SQUARE,
GST_GL_EFFECT_HEAT,
GST_GL_EFFECT_SEPIA,
GST_GL_EFFECT_XPRO,
GST_GL_EFFECT_LUMA_XPRO,
GST_GL_EFFECT_XRAY,
GST_GL_EFFECT_SIN,
GST_GL_EFFECT_GLOW,
GST_GL_EFFECT_SOBEL,
GST_GL_EFFECT_BLUR,
GST_GL_EFFECT_LAPLACIAN,
GST_GL_N_EFFECTS
} GstGLEffectsEffect;
static const GEnumValue *
gst_gl_effects_get_effects (void)
{
static const GEnumValue effect_types[] = {
{GST_GL_EFFECT_IDENTITY, "Do nothing Effect", "identity"},
{GST_GL_EFFECT_MIRROR, "Mirror Effect", "mirror"},
{GST_GL_EFFECT_SQUEEZE, "Squeeze Effect", "squeeze"},
{GST_GL_EFFECT_STRETCH, "Stretch Effect", "stretch"},
{GST_GL_EFFECT_TUNNEL, "Light Tunnel Effect", "tunnel"},
{GST_GL_EFFECT_FISHEYE, "FishEye Effect", "fisheye"},
{GST_GL_EFFECT_TWIRL, "Twirl Effect", "twirl"},
{GST_GL_EFFECT_BULGE, "Bulge Effect", "bulge"},
{GST_GL_EFFECT_SQUARE, "Square Effect", "square"},
{GST_GL_EFFECT_HEAT, "Heat Signature Effect", "heat"},
{GST_GL_EFFECT_SEPIA, "Sepia Toning Effect", "sepia"},
{GST_GL_EFFECT_XPRO, "Cross Processing Effect", "xpro"},
{GST_GL_EFFECT_LUMA_XPRO, "Luma Cross Processing Effect", "lumaxpro"},
{GST_GL_EFFECT_XRAY, "Glowing negative effect", "xray"},
{GST_GL_EFFECT_SIN, "All Grey but Red Effect", "sin"},
{GST_GL_EFFECT_GLOW, "Glow Lighting Effect", "glow"},
{GST_GL_EFFECT_SOBEL, "Sobel edge detection Effect", "sobel"},
{GST_GL_EFFECT_BLUR, "Blur with 9x9 separable convolution Effect", "blur"},
{GST_GL_EFFECT_LAPLACIAN, "Laplacian Convolution Demo Effect", "laplacian"},
{0, NULL, NULL}
};
return effect_types;
}
#define GST_TYPE_GL_EFFECTS_EFFECT (gst_gl_effects_effect_get_type ())
static GType
gst_gl_effects_effect_get_type (void)
{
static GType gl_effects_effect_type = 0;
if (!gl_effects_effect_type) {
gl_effects_effect_type =
g_enum_register_static ("GstGLEffectsEffect",
gst_gl_effects_get_effects ());
}
return gl_effects_effect_type;
}
static void
gst_gl_effects_set_effect (GstGLEffects * effects, gint effect_type)
{
GstGLBaseFilterClass *filter_class = GST_GL_BASE_FILTER_GET_CLASS (effects);
switch (effect_type) {
case GST_GL_EFFECT_IDENTITY:
effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_identity;
filter_class->supported_gl_api =
GST_GL_API_GLES2 | GST_GL_API_OPENGL | GST_GL_API_OPENGL3;
effects->current_effect = effect_type;
break;
case GST_GL_EFFECT_MIRROR:
effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_mirror;
filter_class->supported_gl_api =
GST_GL_API_GLES2 | GST_GL_API_OPENGL | GST_GL_API_OPENGL3;
effects->current_effect = effect_type;
break;
case GST_GL_EFFECT_SQUEEZE:
effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_squeeze;
filter_class->supported_gl_api =
GST_GL_API_GLES2 | GST_GL_API_OPENGL | GST_GL_API_OPENGL3;
effects->current_effect = effect_type;
break;
case GST_GL_EFFECT_STRETCH:
effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_stretch;
filter_class->supported_gl_api =
GST_GL_API_GLES2 | GST_GL_API_OPENGL | GST_GL_API_OPENGL3;
effects->current_effect = effect_type;
break;
case GST_GL_EFFECT_TUNNEL:
effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_tunnel;
filter_class->supported_gl_api =
GST_GL_API_GLES2 | GST_GL_API_OPENGL | GST_GL_API_OPENGL3;
effects->current_effect = effect_type;
break;
case GST_GL_EFFECT_FISHEYE:
effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_fisheye;
filter_class->supported_gl_api =
GST_GL_API_GLES2 | GST_GL_API_OPENGL | GST_GL_API_OPENGL3;
effects->current_effect = effect_type;
break;
case GST_GL_EFFECT_TWIRL:
effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_twirl;
filter_class->supported_gl_api =
GST_GL_API_GLES2 | GST_GL_API_OPENGL | GST_GL_API_OPENGL3;
effects->current_effect = effect_type;
break;
case GST_GL_EFFECT_BULGE:
effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_bulge;
filter_class->supported_gl_api =
GST_GL_API_GLES2 | GST_GL_API_OPENGL | GST_GL_API_OPENGL3;
effects->current_effect = effect_type;
break;
case GST_GL_EFFECT_SQUARE:
effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_square;
filter_class->supported_gl_api =
GST_GL_API_GLES2 | GST_GL_API_OPENGL | GST_GL_API_OPENGL3;
effects->current_effect = effect_type;
break;
case GST_GL_EFFECT_HEAT:
effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_heat;
filter_class->supported_gl_api =
GST_GL_API_GLES2 | GST_GL_API_OPENGL | GST_GL_API_OPENGL3;
effects->current_effect = effect_type;
break;
case GST_GL_EFFECT_SEPIA:
effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_sepia;
filter_class->supported_gl_api =
GST_GL_API_GLES2 | GST_GL_API_OPENGL | GST_GL_API_OPENGL3;
effects->current_effect = effect_type;
break;
case GST_GL_EFFECT_XPRO:
effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_xpro;
filter_class->supported_gl_api =
GST_GL_API_GLES2 | GST_GL_API_OPENGL | GST_GL_API_OPENGL3;
effects->current_effect = effect_type;
break;
case GST_GL_EFFECT_LUMA_XPRO:
effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_luma_xpro;
filter_class->supported_gl_api =
GST_GL_API_GLES2 | GST_GL_API_OPENGL | GST_GL_API_OPENGL3;
effects->current_effect = effect_type;
break;
case GST_GL_EFFECT_SIN:
effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_sin;
filter_class->supported_gl_api =
GST_GL_API_GLES2 | GST_GL_API_OPENGL | GST_GL_API_OPENGL3;
effects->current_effect = effect_type;
break;
case GST_GL_EFFECT_XRAY:
effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_xray;
filter_class->supported_gl_api =
GST_GL_API_GLES2 | GST_GL_API_OPENGL | GST_GL_API_OPENGL3;
effects->current_effect = effect_type;
break;
case GST_GL_EFFECT_GLOW:
effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_glow;
filter_class->supported_gl_api =
GST_GL_API_GLES2 | GST_GL_API_OPENGL | GST_GL_API_OPENGL3;
effects->current_effect = effect_type;
break;
case GST_GL_EFFECT_SOBEL:
effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_sobel;
filter_class->supported_gl_api =
GST_GL_API_GLES2 | GST_GL_API_OPENGL | GST_GL_API_OPENGL3;
effects->current_effect = effect_type;
break;
case GST_GL_EFFECT_BLUR:
effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_blur;
filter_class->supported_gl_api =
GST_GL_API_GLES2 | GST_GL_API_OPENGL | GST_GL_API_OPENGL3;
effects->current_effect = effect_type;
break;
case GST_GL_EFFECT_LAPLACIAN:
effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_laplacian;
filter_class->supported_gl_api =
GST_GL_API_GLES2 | GST_GL_API_OPENGL | GST_GL_API_OPENGL3;
effects->current_effect = effect_type;
break;
default:
g_assert_not_reached ();
}
effects->current_effect = effect_type;
}
/* init resources that need a gl context */
static gboolean
gst_gl_effects_gl_start (GstGLBaseFilter * base_filter)
{
GstGLEffects *effects = GST_GL_EFFECTS (base_filter);
GstGLFilter *filter = GST_GL_FILTER (base_filter);
GstGLContext *context = base_filter->context;
GstGLBaseMemoryAllocator *base_alloc;
GstGLAllocationParams *params;
gint i;
if (!GST_GL_BASE_FILTER_CLASS (parent_class)->gl_start (base_filter))
return FALSE;
base_alloc = (GstGLBaseMemoryAllocator *)
gst_allocator_find (GST_GL_MEMORY_ALLOCATOR_NAME);
params =
(GstGLAllocationParams *) gst_gl_video_allocation_params_new (context,
NULL, &filter->out_info, 0, NULL, GST_GL_TEXTURE_TARGET_2D, GST_GL_RGBA);
for (i = 0; i < NEEDED_TEXTURES; i++) {
if (effects->midtexture[i])
gst_memory_unref (GST_MEMORY_CAST (effects->midtexture[i]));
effects->midtexture[i] =
(GstGLMemory *) gst_gl_base_memory_alloc (base_alloc, params);
}
gst_object_unref (base_alloc);
gst_gl_allocation_params_free (params);
return TRUE;
}
/* free resources that need a gl context */
static void
gst_gl_effects_gl_stop (GstGLBaseFilter * base_filter)
{
GstGLEffects *effects = GST_GL_EFFECTS (base_filter);
const GstGLFuncs *gl = base_filter->context->gl_vtable;
gint i = 0;
for (i = 0; i < NEEDED_TEXTURES; i++) {
gst_memory_unref (GST_MEMORY_CAST (effects->midtexture[i]));
}
for (i = 0; i < GST_GL_EFFECTS_N_CURVES; i++) {
gl->DeleteTextures (1, &effects->curve[i]);
effects->curve[i] = 0;
}
GST_GL_BASE_FILTER_CLASS (parent_class)->gl_stop (base_filter);
}
static void
gst_gl_effects_class_init (GstGLEffectsClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_gl_filter_add_rgba_pad_templates (GST_GL_FILTER_CLASS (klass));
GST_BASE_TRANSFORM_CLASS (klass)->start = gst_gl_effects_init_resources;
GST_BASE_TRANSFORM_CLASS (klass)->stop = gst_gl_effects_reset_resources;
GST_GL_BASE_FILTER_CLASS (klass)->gl_start = gst_gl_effects_gl_start;
GST_GL_BASE_FILTER_CLASS (klass)->gl_stop = gst_gl_effects_gl_stop;
GST_GL_FILTER_CLASS (klass)->filter_texture = gst_gl_effects_filter_texture;
GST_GL_FILTER_CLASS (klass)->init_fbo = gst_gl_effects_on_init_gl_context;
klass->filter_descriptor = NULL;
gst_element_class_set_metadata (element_class,
"Gstreamer OpenGL Effects", "Filter/Effect/Video",
"GL Shading Language effects",
"Filippo Argiolas <filippo.argiolas@gmail.com>");
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_effects_filter_class_init (GstGLEffectsClass * klass,
const GstGLEffectsFilterDescriptor * filter_descriptor)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
klass->filter_descriptor = filter_descriptor;
gobject_class->set_property = gst_gl_effects_set_property;
gobject_class->get_property = gst_gl_effects_get_property;
/* if filterDescriptor is null it's a generic gleffects */
if (!filter_descriptor) {
g_object_class_install_property (gobject_class,
PROP_EFFECT,
g_param_spec_enum ("effect",
"Effect",
"Select which effect apply to GL video texture",
GST_TYPE_GL_EFFECTS_EFFECT,
GST_GL_EFFECT_IDENTITY,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
} else {
gchar *description = g_strdup_printf ("GL Shading Language effects - %s",
filter_descriptor->filter_longname);
gst_element_class_set_metadata (element_class,
filter_descriptor->filter_longname, "Filter/Effect/Video",
description, "Filippo Argiolas <filippo.argiolas@gmail.com>");
g_free (description);
}
g_object_class_install_property (gobject_class,
PROP_HSWAP,
g_param_spec_boolean ("hswap",
"Horizontal Swap",
"Switch video texture left to right, useful with webcams",
FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/* FIXME: make it work on every effect */
if (gst_gl_effects_filters_is_property_supported (filter_descriptor,
PROP_INVERT)) {
g_object_class_install_property (gobject_class, PROP_INVERT,
g_param_spec_boolean ("invert", "Invert the colors for sobel effect",
"Invert colors to get dark edges on bright background when using sobel effect",
FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}
}
static void
set_horizontal_swap (GstGLEffects * effects)
{
#if GST_GL_HAVE_OPENGL
GstGLContext *context = GST_GL_BASE_FILTER (effects)->context;
const GstGLFuncs *gl = context->gl_vtable;
if (gst_gl_context_get_gl_api (context) & GST_GL_API_OPENGL) {
const gfloat mirrormatrix[16] = {
-1.0, 0.0, 0.0, 0.0,
0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0
};
gl->MatrixMode (GL_MODELVIEW);
gl->LoadMatrixf (mirrormatrix);
}
#endif
}
static void
gst_gl_effects_init (GstGLEffects * effects)
{
effects->horizontal_swap = FALSE;
effects->invert = FALSE;
effects->effect = gst_gl_effects_identity;
}
static void
gst_gl_effects_filter_init (GstGLEffects * effects)
{
gst_gl_effects_set_effect (effects,
GST_GL_EFFECTS_GET_CLASS (effects)->filter_descriptor->effect);
}
static void
gst_gl_effects_ghash_func_clean (gpointer key, gpointer value, gpointer data)
{
GstGLShader *shader = (GstGLShader *) value;
gst_object_unref (shader);
value = NULL;
}
static gboolean
gst_gl_effects_reset_resources (GstBaseTransform * trans)
{
GstGLEffects *effects = GST_GL_EFFECTS (trans);
/* release shaders in the gl thread */
g_hash_table_foreach (effects->shaderstable, gst_gl_effects_ghash_func_clean,
effects);
/* clean the htable without calling values destructors
* because shaders have been released in the glthread
* through the foreach func */
g_hash_table_unref (effects->shaderstable);
effects->shaderstable = NULL;
return GST_BASE_TRANSFORM_CLASS (parent_class)->stop (trans);
}
static void
gst_gl_effects_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstGLEffects *effects = GST_GL_EFFECTS (object);
switch (prop_id) {
case PROP_EFFECT:
gst_gl_effects_set_effect (effects, g_value_get_enum (value));
break;
case PROP_HSWAP:
effects->horizontal_swap = g_value_get_boolean (value);
break;
case PROP_INVERT:
effects->invert = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_gl_effects_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstGLEffects *effects = GST_GL_EFFECTS (object);
switch (prop_id) {
case PROP_EFFECT:
g_value_set_enum (value, effects->current_effect);
break;
case PROP_HSWAP:
g_value_set_boolean (value, effects->horizontal_swap);
break;
case PROP_INVERT:
g_value_set_boolean (value, effects->invert);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_gl_effects_init_resources (GstBaseTransform * trans)
{
GstGLEffects *effects = GST_GL_EFFECTS (trans);
gint i;
effects->shaderstable = g_hash_table_new (g_str_hash, g_str_equal);
for (i = 0; i < NEEDED_TEXTURES; i++) {
effects->midtexture[i] = 0;
}
for (i = 0; i < GST_GL_EFFECTS_N_CURVES; i++) {
effects->curve[i] = 0;
}
return GST_BASE_TRANSFORM_CLASS (parent_class)->start (trans);
}
static gboolean
gst_gl_effects_on_init_gl_context (GstGLFilter * filter)
{
return TRUE;
}
static gboolean
gst_gl_effects_filter_texture (GstGLFilter * filter, GstGLMemory * in_tex,
GstGLMemory * out_tex)
{
GstGLEffects *effects = GST_GL_EFFECTS (filter);
effects->intexture = in_tex;
effects->outtexture = out_tex;
if (effects->horizontal_swap == TRUE)
set_horizontal_swap (effects);
effects->effect (effects);
return TRUE;
}
GstGLShader *
gst_gl_effects_get_fragment_shader (GstGLEffects * effects,
const gchar * shader_name, const gchar * shader_source_gles2)
{
GstGLShader *shader = NULL;
GstGLFilter *filter = GST_GL_FILTER (effects);
GstGLContext *context = GST_GL_BASE_FILTER (filter)->context;
shader = g_hash_table_lookup (effects->shaderstable, shader_name);
if (!shader) {
GError *error = NULL;
if (!(shader = gst_gl_shader_new_link_with_stages (context, &error,
gst_glsl_stage_new_default_vertex (context),
gst_glsl_stage_new_with_string (context, GL_FRAGMENT_SHADER,
GST_GLSL_VERSION_NONE,
GST_GLSL_PROFILE_ES | GST_GLSL_PROFILE_COMPATIBILITY,
shader_source_gles2), NULL))) {
GST_ELEMENT_ERROR (effects, RESOURCE, NOT_FOUND,
("Failed to initialize %s shader", shader_name), (NULL));
}
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");
}
g_hash_table_insert (effects->shaderstable, (gchar *) shader_name, shader);
return shader;
}
static const GstGLEffectsFilterDescriptor *
gst_gl_effects_filters_supported_properties (void)
{
/* Horizontal swap property is supported by all filters */
static const GstGLEffectsFilterDescriptor effects[] = {
{GST_GL_EFFECT_SOBEL, PROP_INVERT, NULL},
{GST_GL_EFFECT_LAPLACIAN, PROP_INVERT, NULL},
{0, 0, NULL}
};
return effects;
}
static inline gboolean
gst_gl_effects_filters_is_property_supported (const GstGLEffectsFilterDescriptor
* descriptor, gint property)
{
/* generic filter (NULL descriptor) supports all properties */
return !descriptor || (descriptor->supported_properties & property);
}
static const GstGLEffectsFilterDescriptor *
gst_gl_effects_filters_descriptors (void)
{
static GstGLEffectsFilterDescriptor *descriptors = NULL;
if (!descriptors) {
const GEnumValue *e;
const GEnumValue *effect = gst_gl_effects_get_effects ();
const GstGLEffectsFilterDescriptor *defined;
guint n_filters = 0, i;
for (e = effect; NULL != e->value_nick; ++e, ++n_filters) {
}
descriptors = g_new0 (GstGLEffectsFilterDescriptor, n_filters + 1);
for (i = 0; i < n_filters; ++i, ++effect) {
descriptors[i].effect = effect->value;
descriptors[i].filter_name = effect->value_nick;
descriptors[i].filter_longname = effect->value_name;
}
for (defined = gst_gl_effects_filters_supported_properties ();
0 != defined->supported_properties; ++defined) {
for (i = 0; i < n_filters; ++i) {
if (descriptors[i].effect == defined->effect) {
descriptors[i].supported_properties = defined->supported_properties;
break;
}
}
if (i >= n_filters) {
GST_WARNING ("Could not match gstgleffects-%s descriptor",
defined->filter_name);
}
}
}
return descriptors;
}
gboolean
gst_gl_effects_register_filters (GstPlugin * plugin, GstRank rank)
{
static volatile gsize registered = 0;
if (g_once_init_enter (®istered)) {
GTypeInfo info = {
sizeof (GstGLEffectsClass),
NULL,
NULL,
(GClassInitFunc) gst_gl_effects_filter_class_init,
NULL,
NULL,
sizeof (GstGLEffects),
0,
NULL
};
GType generic_type =
g_type_register_static (GST_TYPE_GL_EFFECTS, "GstGLEffectsGeneric",
&info, 0);
if (gst_element_register (plugin, "gleffects", rank, generic_type)) {
const GstGLEffectsFilterDescriptor *filters;
for (filters = gst_gl_effects_filters_descriptors ();
NULL != filters->filter_name; ++filters) {
gchar *name = g_strdup_printf ("gleffects_%s", filters->filter_name);
GTypeInfo info = {
sizeof (GstGLEffectsClass),
NULL,
NULL,
(GClassInitFunc) gst_gl_effects_filter_class_init,
NULL,
filters,
sizeof (GstGLEffects),
0,
(GInstanceInitFunc) gst_gl_effects_filter_init
};
GType type =
g_type_register_static (GST_TYPE_GL_EFFECTS, name, &info, 0);
if (!gst_element_register (plugin, name, rank, type)) {
GST_WARNING ("Could not register %s", name);
}
g_free (name);
}
}
g_once_init_leave (®istered, generic_type);
}
return registered;
}