mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-24 17:20:36 +00:00
b76595d67e
Set positioning-mode=pixels-absolute to allow positioning with absolute coordinates, meaning negative x/y offsets will be interpreted as being to the left/above the video frame instead of being interpreted as relative to the right/bottom edge of the video frame (which is a silly default, but that's how it is). This means we can nicely slide images into and out of the frame, see gdkpixbufoverlay-test. https://bugzilla.gnome.org/show_bug.cgi?id=739566
91 lines
2.9 KiB
C
91 lines
2.9 KiB
C
/* GStreamer GdkPixbuf overlay
|
|
* Copyright (C) 2012-2014 Tim-Philipp Müller <tim centricular net>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef _GST_GDK_PIXBUF_OVERLAY_H_
|
|
#define _GST_GDK_PIXBUF_OVERLAY_H_
|
|
|
|
#include <gst/video/video.h>
|
|
#include <gst/video/gstvideofilter.h>
|
|
#include <gst/video/video-overlay-composition.h>
|
|
|
|
#include <gdk-pixbuf/gdk-pixbuf.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GST_TYPE_GDK_PIXBUF_OVERLAY (gst_gdk_pixbuf_overlay_get_type())
|
|
#define GST_GDK_PIXBUF_OVERLAY(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GDK_PIXBUF_OVERLAY,GstGdkPixbufOverlay))
|
|
#define GST_GDK_PIXBUF_OVERLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GDK_PIXBUF_OVERLAY,GstGdkPixbufOverlayClass))
|
|
#define GST_IS_GDK_PIXBUF_OVERLAY(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GDK_PIXBUF_OVERLAY))
|
|
#define GST_IS_GDK_PIXBUF_OVERLAY_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GDK_PIXBUF_OVERLAY))
|
|
|
|
typedef struct _GstGdkPixbufOverlay GstGdkPixbufOverlay;
|
|
typedef struct _GstGdkPixbufOverlayClass GstGdkPixbufOverlayClass;
|
|
|
|
typedef enum {
|
|
GST_GDK_PIXBUF_POSITIONING_PIXELS_RELATIVE_TO_EDGES,
|
|
GST_GDK_PIXBUF_POSITIONING_PIXELS_ABSOLUTE
|
|
} GstGdkPixbufPositioningMode;
|
|
|
|
/**
|
|
* GstGdkPixbufOverlay:
|
|
*
|
|
* The opaque element instance structure.
|
|
*/
|
|
struct _GstGdkPixbufOverlay
|
|
{
|
|
GstVideoFilter videofilter;
|
|
|
|
/* properties */
|
|
gchar * location;
|
|
|
|
/* pixbuf set via pixbuf property */
|
|
GdkPixbuf * pixbuf;
|
|
|
|
gint offset_x;
|
|
gint offset_y;
|
|
|
|
gdouble relative_x;
|
|
gdouble relative_y;
|
|
|
|
GstGdkPixbufPositioningMode positioning_mode;
|
|
|
|
gint overlay_width;
|
|
gint overlay_height;
|
|
|
|
gdouble alpha;
|
|
|
|
/* the loaded image, as BGRA/ARGB pixels, with GstVideoMeta */
|
|
GstBuffer * pixels; /* OBJECT_LOCK */
|
|
|
|
GstVideoOverlayComposition * comp;
|
|
|
|
/* render position or dimension has changed */
|
|
gboolean update_composition;
|
|
};
|
|
|
|
struct _GstGdkPixbufOverlayClass
|
|
{
|
|
GstVideoFilterClass videofilter_class;
|
|
};
|
|
|
|
GType gst_gdk_pixbuf_overlay_get_type (void);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif
|