1 /* GStreamer GdkPixbuf overlay 2 * Copyright (C) 2012-2014 Tim-Philipp Müller <tim centricular net> 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public 15 * License along with this library; if not, write to the 16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 */ 19 20 #ifndef _GST_GDK_PIXBUF_OVERLAY_H_ 21 #define _GST_GDK_PIXBUF_OVERLAY_H_ 22 23 #include <gst/video/video.h> 24 #include <gst/video/gstvideofilter.h> 25 #include <gst/video/video-overlay-composition.h> 26 27 #include <gdk-pixbuf/gdk-pixbuf.h> 28 29 G_BEGIN_DECLS 30 31 #define GST_TYPE_GDK_PIXBUF_OVERLAY (gst_gdk_pixbuf_overlay_get_type()) 32 #define GST_GDK_PIXBUF_OVERLAY(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GDK_PIXBUF_OVERLAY,GstGdkPixbufOverlay)) 33 #define GST_GDK_PIXBUF_OVERLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GDK_PIXBUF_OVERLAY,GstGdkPixbufOverlayClass)) 34 #define GST_IS_GDK_PIXBUF_OVERLAY(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GDK_PIXBUF_OVERLAY)) 35 #define GST_IS_GDK_PIXBUF_OVERLAY_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GDK_PIXBUF_OVERLAY)) 36 37 typedef struct _GstGdkPixbufOverlay GstGdkPixbufOverlay; 38 typedef struct _GstGdkPixbufOverlayClass GstGdkPixbufOverlayClass; 39 40 typedef enum { 41 GST_GDK_PIXBUF_POSITIONING_PIXELS_RELATIVE_TO_EDGES, 42 GST_GDK_PIXBUF_POSITIONING_PIXELS_ABSOLUTE 43 } GstGdkPixbufPositioningMode; 44 45 /** 46 * GstGdkPixbufOverlay: 47 * 48 * The opaque element instance structure. 49 */ 50 struct _GstGdkPixbufOverlay 51 { 52 GstVideoFilter videofilter; 53 54 /* properties */ 55 gchar * location; 56 57 /* pixbuf set via pixbuf property */ 58 GdkPixbuf * pixbuf; 59 60 gint offset_x; 61 gint offset_y; 62 63 gdouble relative_x; 64 gdouble relative_y; 65 66 gdouble coef_x; 67 gdouble coef_y; 68 69 GstGdkPixbufPositioningMode positioning_mode; 70 71 gint overlay_width; 72 gint overlay_height; 73 74 gdouble alpha; 75 76 /* the loaded image, as BGRA/ARGB pixels, with GstVideoMeta */ 77 GstBuffer * pixels; /* OBJECT_LOCK */ 78 79 GstVideoOverlayComposition * comp; 80 81 /* render position or dimension has changed */ 82 gboolean update_composition; 83 }; 84 85 struct _GstGdkPixbufOverlayClass 86 { 87 GstVideoFilterClass videofilter_class; 88 }; 89 90 GType gst_gdk_pixbuf_overlay_get_type (void); 91 92 G_END_DECLS 93 94 #endif 95