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[174/906] add a property to gleffects to switch video left to right, useful with webcams to resemble a mirror

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This commit is contained in:
Filippo Argiolas 2008-08-14 22:28:19 +02:00 committed by Matthew Waters
parent 5db4fa5f1e
commit 7364319bfd
2 changed files with 35 additions and 14 deletions
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44
gst/gl/gstgleffects.c
View file

@ -222,6 +222,14 @@ gst_gl_effects_class_init (GstGLEffectsClass * klass)
GST_TYPE_GL_EFFECTS_EFFECT,
GST_GL_EFFECT_IDENTITY,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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));
}
void
@ -247,21 +255,21 @@ gst_gl_effects_draw_texture (GstGLEffects * effects, GLuint tex)
glEnd ();
}
/* static void */
/* set_orizonthal_switch (GstGLDisplay *display, gpointer data) */
/* { */
/* // GstGLEffects *effects = GST_GL_EFFECTS (data); */
static void
set_horizontal_swap (GstGLDisplay *display, gpointer data)
{
// GstGLEffects *effects = GST_GL_EFFECTS (data);
/* const double 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 */
/* }; */
const double 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
};
/* glMatrixMode (GL_MODELVIEW); */
/* glLoadMatrixd (mirrormatrix); */
/* } */
glMatrixMode (GL_MODELVIEW);
glLoadMatrixd (mirrormatrix);
}
static void
gst_gl_effects_init (GstGLEffects * effects, GstGLEffectsClass * klass)
@ -276,6 +284,7 @@ gst_gl_effects_init (GstGLEffects * effects, GstGLEffectsClass * klass)
}
effects->effect = gst_gl_effects_identity;
effects->horizontal_swap = FALSE;
}
static void
@ -297,6 +306,9 @@ gst_gl_effects_set_property (GObject * object, guint 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;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -313,6 +325,9 @@ gst_gl_effects_get_property (GObject * object, guint 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;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -334,6 +349,9 @@ gst_gl_effects_filter (GstGLFilter* filter, GstGLBuffer* inbuf,
effects->intexture = inbuf->texture;
effects->outtexture = outbuf->texture;
if (effects->horizontal_swap == TRUE)
gst_gl_display_thread_add (filter->display, set_horizontal_swap, effects);
effects->effect (effects);
return TRUE;

5
gst/gl/gstgleffects.h
View file

@ -67,6 +67,8 @@ struct _GstGLEffects
GLuint curve[GST_GL_EFFECTS_N_CURVES];
GHashTable *shaderstable;
gboolean horizontal_swap; /* switch left to right */
};
struct _GstGLEffectsClass
@ -77,7 +79,8 @@ struct _GstGLEffectsClass
enum
{
PROP_0,
PROP_EFFECT
PROP_EFFECT,
PROP_HSWAP
};