--- /dev/null
+/* GStreamer video sink base class
+ * Copyright (C) <2003> Julien Moutte <julien@moutte.net>
+ * Copyright (C) <2009> 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/* FIXME 0.11: turn this into a proper base class */
+
+#ifndef __GST_VIDEO_SINK_H__
+#define __GST_VIDEO_SINK_H__
+
+#include <gst/gst.h>
+#include <gst/base/gstbasesink.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_VIDEO_SINK (gst_video_sink_get_type())
+#define GST_VIDEO_SINK(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_VIDEO_SINK, GstVideoSink))
+#define GST_VIDEO_SINK_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_VIDEO_SINK, GstVideoSinkClass))
+#define GST_IS_VIDEO_SINK(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_VIDEO_SINK))
+#define GST_IS_VIDEO_SINK_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_VIDEO_SINK))
+#define GST_VIDEO_SINK_GET_CLASS(klass) \
+ (G_TYPE_INSTANCE_GET_CLASS ((klass), GST_TYPE_VIDEO_SINK, GstVideoSinkClass))
+
+/**
+ * GST_VIDEO_SINK_CAST:
+ * @obj: a #GstVideoSink or derived object
+ *
+ * Cast @obj to a #GstVideoSink without runtime type check.
+ *
+ * Since: 0.10.12
+ */
+#define GST_VIDEO_SINK_CAST(obj) ((GstVideoSink *) (obj))
+
+/**
+ * GST_VIDEO_SINK_PAD:
+ * @obj: a #GstVideoSink
+ *
+ * Get the sink #GstPad of @obj.
+ */
+#define GST_VIDEO_SINK_PAD(obj) GST_BASE_SINK_PAD(obj)
+
+#define GST_VIDEO_SINK_WIDTH(obj) (GST_VIDEO_SINK_CAST (obj)->width)
+#define GST_VIDEO_SINK_HEIGHT(obj) (GST_VIDEO_SINK_CAST (obj)->height)
+
+typedef struct _GstVideoSink GstVideoSink;
+typedef struct _GstVideoSinkClass GstVideoSinkClass;
+typedef struct _GstVideoRectangle GstVideoRectangle;
+typedef struct _GstVideoSinkPrivate GstVideoSinkPrivate;
+
+/**
+ * GstVideoRectangle:
+ * @x: X coordinate of rectangle's top-left point
+ * @y: Y coordinate of rectangle's top-left point
+ * @w: width of the rectangle
+ * @h: height of the rectangle
+ *
+ * Helper structure representing a rectangular area.
+ */
+struct _GstVideoRectangle {
+ gint x;
+ gint y;
+ gint w;
+ gint h;
+};
+
+/**
+ * GstVideoSink:
+ * @element: the parent object structure (which is GstBaseSink)
+ * @height: video height (derived class needs to set this)
+ * @width: video width (derived class needs to set this)
+ *
+ * The video sink instance structure. Derived video sinks should set the
+ * @height and @width members.
+ */
+struct _GstVideoSink {
+ GstBaseSink element; /* FIXME 0.11: this should not be called 'element' */
+
+ gint width, height;
+
+ /*< private >*/
+ GstVideoSinkPrivate *priv;
+
+ gpointer _gst_reserved[GST_PADDING - 1];
+};
+
+/**
+ * GstVideoSinkClass:
+ * @parent_class: the parent class structure
+ * @show_frame: render a video frame. Maps to #GstBaseSink::render and
+ * #GstBaseSink::preroll vfuncs. Rendering during preroll will be
+ * suppressed if the 'show-preroll-frame' property is set to #FALSE.
+ * Since: 0.10.25
+ *
+ * The video sink class structure. Derived classes should override the
+ * @show_frame virtual function.
+ */
+struct _GstVideoSinkClass {
+ GstBaseSinkClass parent_class;
+
+ GstFlowReturn (*show_frame) (GstVideoSink *video_sink, GstBuffer *buf);
+
+ /*< private >*/
+ gpointer _gst_reserved[GST_PADDING - 1];
+};
+
+GType gst_video_sink_get_type (void);
+
+void gst_video_sink_center_rect (GstVideoRectangle src, GstVideoRectangle dst,
+ GstVideoRectangle *result, gboolean scaling);
+
+G_END_DECLS
+
+#endif /* __GST_VIDEO_SINK_H__ */