gstreamer/ext/cairo/gsttextoverlay.h

90 lines
3 KiB
C

#ifndef __GST_CAIRO_TEXT_OVERLAY_H__
#define __GST_CAIRO_TEXT_OVERLAY_H__
#include <gst/gst.h>
#include <gst/base/gstcollectpads.h>
G_BEGIN_DECLS
#define GST_TYPE_CAIRO_TEXT_OVERLAY (gst_text_overlay_get_type())
#define GST_CAIRO_TEXT_OVERLAY(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),\
GST_TYPE_CAIRO_TEXT_OVERLAY, GstCairoTextOverlay))
#define GST_CAIRO_TEXT_OVERLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),\
GST_TYPE_CAIRO_TEXT_OVERLAY, GstCairoTextOverlayClass))
#define GST_CAIRO_TEXT_OVERLAY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),\
GST_TYPE_CAIRO_TEXT_OVERLAY, GstCairoTextOverlayClass))
#define GST_IS_CAIRO_TEXT_OVERLAY(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),\
GST_TYPE_CAIRO_TEXT_OVERLAY))
#define GST_IS_CAIRO_TEXT_OVERLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),\
GST_TYPE_CAIRO_TEXT_OVERLAY))
typedef struct _GstCairoTextOverlay GstCairoTextOverlay;
typedef struct _GstCairoTextOverlayClass GstCairoTextOverlayClass;
typedef enum _GstCairoTextOverlayVAlign GstCairoTextOverlayVAlign;
typedef enum _GstCairoTextOverlayHAlign GstCairoTextOverlayHAlign;
enum _GstCairoTextOverlayVAlign {
GST_CAIRO_TEXT_OVERLAY_VALIGN_BASELINE,
GST_CAIRO_TEXT_OVERLAY_VALIGN_BOTTOM,
GST_CAIRO_TEXT_OVERLAY_VALIGN_TOP
};
enum _GstCairoTextOverlayHAlign {
GST_CAIRO_TEXT_OVERLAY_HALIGN_LEFT,
GST_CAIRO_TEXT_OVERLAY_HALIGN_CENTER,
GST_CAIRO_TEXT_OVERLAY_HALIGN_RIGHT
};
struct _GstCairoTextOverlay {
GstElement element;
GstPad *video_sinkpad;
GstPad *text_sinkpad;
GstPad *srcpad;
GstCollectPads *collect;
GstCollectData *video_collect_data;
GstCollectData *text_collect_data;
GstPadEventFunction collect_event;
gint width;
gint height;
gint fps_n;
gint fps_d;
GstCairoTextOverlayVAlign valign;
GstCairoTextOverlayHAlign halign;
gint xpad;
gint ypad;
gint deltax;
gint deltay;
gchar *default_text;
gboolean want_shading;
guchar *text_fill_image;
guchar *text_outline_image;
gint font_height;
gint text_x0, text_x1; /* start/end x position of text */
gint text_dy;
gboolean need_render;
gchar *font;
gint slant;
gint weight;
gdouble scale;
gboolean silent;
};
struct _GstCairoTextOverlayClass {
GstElementClass parent_class;
};
GType gst_text_overlay_get_type (void);
G_END_DECLS
#endif /* __GST_CAIRO_TEXT_OVERLAY_H */