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Added the property for setting the "thickness" of font

Browse source 
modified:   ext/opencv/textwrite/gsttextwrite.c
	modified:   ext/opencv/textwrite/gsttextwrite.h
This commit is contained in:
Sreerenj Balachandran 2010-03-02 13:18:19 +05:30 committed by Thiago Santos
parent ce5eb639cd
commit 6d4f9ceeb5
2 changed files with 22 additions and 10 deletions
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31
ext/opencv/textwrite/gsttextwrite.c
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@ -71,6 +71,7 @@ GST_DEBUG_CATEGORY_STATIC (gst_textwrite_debug);
#define DEFAULT_PROP_HEIGHT 1
#define DEFAULT_PROP_XPOS 50
#define DEFAULT_PROP_YPOS 50
#define DEFAULT_PROP_THICKNESS 2
/* Filter signals and args */
enum
@ -85,6 +86,7 @@ enum
PROP_0,
PROP_XPOS,
PROP_YPOS,
PROP_THICKNESS,
PROP_TEXT,
PROP_HEIGHT,
PROP_WIDTH
@ -184,6 +186,11 @@ gst_textwrite_class_init (GsttextwriteClass * klass)
"Sets the Vertical position", 0, G_MAXINT,
DEFAULT_PROP_YPOS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_THICKNESS,
g_param_spec_int ("thickness", "font thickness",
"Sets the Thickness of Font", 0, G_MAXINT,
DEFAULT_PROP_THICKNESS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_HEIGHT,
g_param_spec_double ("height", "Height",
"Sets the height of fonts",1.0,5.0,
@ -220,11 +227,12 @@ gst_textwrite_init (Gsttextwrite * filter,
gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad);
gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad);
filter->textbuf = g_strdup (DEFAULT_PROP_TEXT);
filter->width=DEFAULT_PROP_WIDTH;
filter->height=DEFAULT_PROP_HEIGHT;
filter->xpos=DEFAULT_PROP_XPOS;
filter->ypos=DEFAULT_PROP_XPOS;
filter->width = DEFAULT_PROP_WIDTH;
filter->height = DEFAULT_PROP_HEIGHT;
filter->xpos = DEFAULT_PROP_XPOS;
filter->ypos = DEFAULT_PROP_YPOS;
filter->thickness = DEFAULT_PROP_THICKNESS;
}
static void
@ -244,6 +252,9 @@ gst_textwrite_set_property (GObject * object, guint prop_id,
case PROP_YPOS:
filter->ypos = g_value_get_int(value);
break;
case PROP_THICKNESS:
filter->thickness = g_value_get_int(value);
break;
case PROP_HEIGHT:
filter->height = g_value_get_double(value);
break;
@ -272,6 +283,9 @@ gst_textwrite_get_property (GObject * object, guint prop_id,
case PROP_YPOS:
g_value_set_int (value, filter->ypos);
break;
case PROP_THICKNESS:
g_value_set_int (value, filter->thickness);
break;
case PROP_HEIGHT:
g_value_set_double (value, filter->height);
break;
@ -322,15 +336,12 @@ gst_textwrite_chain (GstPad * pad, GstBuffer * buf)
filter = GST_textwrite (GST_OBJECT_PARENT (pad));
filter->cvImage->imageData = (char *) GST_BUFFER_DATA (buf);
int lineWidth=1;
cvInitFont(&(filter->font),CV_FONT_VECTOR0, filter->width,filter->height,0,lineWidth,0);
cvInitFont(&(filter->font),CV_FONT_VECTOR0, filter->width,filter->height,0,filter->thickness,0);
cvPutText (filter->cvImage,filter->textbuf,cvPoint(filter->xpos,filter->ypos), &(filter->font), cvScalar(165,14,14,0));
gst_buffer_set_data (buf, filter->cvImage->imageData,filter->cvImage->imageSize);
return gst_pad_push (filter->srcpad, buf);
}

1
ext/opencv/textwrite/gsttextwrite.h
View file

@ -80,6 +80,7 @@ struct _Gsttextwrite
gint xpos;
gint ypos;
gint thickness;
gdouble height;
gdouble width;
gchar *textbuf;