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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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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_TYPE_GL_EFFECTS_EFFECT,
GST_GL_EFFECT_IDENTITY, GST_GL_EFFECT_IDENTITY,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); 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 void
@ -247,21 +255,21 @@ gst_gl_effects_draw_texture (GstGLEffects * effects, GLuint tex)
glEnd (); glEnd ();
} }
/* static void */ static void
/* set_orizonthal_switch (GstGLDisplay *display, gpointer data) */ set_horizontal_swap (GstGLDisplay *display, gpointer data)
/* { */ {
/* // GstGLEffects *effects = GST_GL_EFFECTS (data); */ // GstGLEffects *effects = GST_GL_EFFECTS (data);
/* const double mirrormatrix[16] = { */ const double mirrormatrix[16] = {
/* -1.0, 0.0, 0.0, 0.0, */ -1.0, 0.0, 0.0, 0.0,
/* 0.0, 1.0, 0.0, 0.0, */ 0.0, 1.0, 0.0, 0.0,
/* 0.0, 0.0, 1.0, 0.0, */ 0.0, 0.0, 1.0, 0.0,
/* 0.0, 0.0, 0.0, 1.0 */ 0.0, 0.0, 0.0, 1.0
/* }; */ };
/* glMatrixMode (GL_MODELVIEW); */ glMatrixMode (GL_MODELVIEW);
/* glLoadMatrixd (mirrormatrix); */ glLoadMatrixd (mirrormatrix);
/* } */ }
static void static void
gst_gl_effects_init (GstGLEffects * effects, GstGLEffectsClass * klass) 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->effect = gst_gl_effects_identity;
effects->horizontal_swap = FALSE;
} }
static void static void
@ -297,6 +306,9 @@ gst_gl_effects_set_property (GObject * object, guint prop_id,
case PROP_EFFECT: case PROP_EFFECT:
gst_gl_effects_set_effect (effects, g_value_get_enum (value)); gst_gl_effects_set_effect (effects, g_value_get_enum (value));
break; break;
case PROP_HSWAP:
effects->horizontal_swap = g_value_get_boolean (value);
break;
default: default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break; break;
@ -313,6 +325,9 @@ gst_gl_effects_get_property (GObject * object, guint prop_id,
case PROP_EFFECT: case PROP_EFFECT:
g_value_set_enum (value, effects->current_effect); g_value_set_enum (value, effects->current_effect);
break; break;
case PROP_HSWAP:
g_value_set_boolean (value, effects->horizontal_swap);
break;
default: default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break; break;
@ -334,6 +349,9 @@ gst_gl_effects_filter (GstGLFilter* filter, GstGLBuffer* inbuf,
effects->intexture = inbuf->texture; effects->intexture = inbuf->texture;
effects->outtexture = outbuf->texture; effects->outtexture = outbuf->texture;
if (effects->horizontal_swap == TRUE)
gst_gl_display_thread_add (filter->display, set_horizontal_swap, effects);
effects->effect (effects); effects->effect (effects);
return TRUE; return TRUE;

5
gst/gl/gstgleffects.h
View file

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