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 G_DECLARE_FINAL_TYPE (GstGdkPixbufOverlay, gst_gdk_pixbuf_overlay, 33 GST, GDK_PIXBUF_OVERLAY, GstVideoFilter) 34 35 typedef enum { 36 GST_GDK_PIXBUF_POSITIONING_PIXELS_RELATIVE_TO_EDGES, 37 GST_GDK_PIXBUF_POSITIONING_PIXELS_ABSOLUTE 38 } GstGdkPixbufPositioningMode; 39 40 /** 41 * GstGdkPixbufOverlay: 42 * 43 * The opaque element instance structure. 44 */ 45 struct _GstGdkPixbufOverlay 46 { 47 GstVideoFilter videofilter; 48 49 /* properties */ 50 gchar * location; 51 52 /* pixbuf set via pixbuf property */ 53 GdkPixbuf * pixbuf; 54 55 gint offset_x; 56 gint offset_y; 57 58 gdouble relative_x; 59 gdouble relative_y; 60 61 gdouble coef_x; 62 gdouble coef_y; 63 64 GstGdkPixbufPositioningMode positioning_mode; 65 66 gint overlay_width; 67 gint overlay_height; 68 69 gdouble alpha; 70 71 /* the loaded image, as BGRA/ARGB pixels, with GstVideoMeta */ 72 GstBuffer * pixels; /* OBJECT_LOCK */ 73 74 GstVideoOverlayComposition * comp; 75 76 /* render position or dimension has changed */ 77 gboolean update_composition; 78 }; 79 80 G_END_DECLS 81 82 #endif 83