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c70dd75f12
This is a set of helper that makes it easy to enable the render rectangle to be controllable through a property. https://bugzilla.gnome.org/show_bug.cgi?id=792798
122 lines
4.6 KiB
C
122 lines
4.6 KiB
C
/* GStreamer Video Overlay Interface
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* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
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* Copyright (C) 2003 Julien Moutte <julien@moutte.net>
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* Copyright (C) 2011 Tim-Philipp Müller <tim@centricular.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_VIDEO_OVERLAY_H__
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#define __GST_VIDEO_OVERLAY_H__
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#include <gst/gst.h>
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#include <gst/video/gstvideosink.h>
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G_BEGIN_DECLS
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#define GST_TYPE_VIDEO_OVERLAY \
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(gst_video_overlay_get_type ())
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#define GST_VIDEO_OVERLAY(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_VIDEO_OVERLAY, GstVideoOverlay))
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#define GST_IS_VIDEO_OVERLAY(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_VIDEO_OVERLAY))
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#define GST_VIDEO_OVERLAY_GET_INTERFACE(inst) \
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(G_TYPE_INSTANCE_GET_INTERFACE ((inst), GST_TYPE_VIDEO_OVERLAY, GstVideoOverlayInterface))
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/**
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* GstVideoOverlay:
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*
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* Opaque #GstVideoOverlay interface structure
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*/
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typedef struct _GstVideoOverlay GstVideoOverlay;
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typedef struct _GstVideoOverlayInterface GstVideoOverlayInterface;
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typedef struct _GstVideoOverlayProperties GstVideoOverlayProperties;
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/**
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* GstVideoOverlayInterface:
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* @iface: parent interface type.
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* @expose: virtual method to handle expose events
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* @handle_events: virtual method to handle events
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* @set_render_rectangle: virtual method to set the render rectangle
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* @set_window_handle: virtual method to configure the window handle
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* @properties_offset: Offset to the #GstVideoOverlayProperties in the
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* instance allocation. Since 1.14
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*
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* #GstVideoOverlay interface
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*/
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struct _GstVideoOverlayInterface {
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GTypeInterface iface;
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/* virtual functions */
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void (*expose) (GstVideoOverlay *overlay);
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void (*handle_events) (GstVideoOverlay *overlay, gboolean handle_events);
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void (*set_render_rectangle) (GstVideoOverlay *overlay,
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gint x, gint y,
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gint width, gint height);
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void (*set_window_handle) (GstVideoOverlay *overlay, guintptr handle);
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};
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GST_EXPORT
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GType gst_video_overlay_get_type (void);
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/* virtual function wrappers */
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GST_EXPORT
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gboolean gst_video_overlay_set_render_rectangle (GstVideoOverlay * overlay,
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gint x,
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gint y,
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gint width,
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gint height);
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GST_EXPORT
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void gst_video_overlay_expose (GstVideoOverlay * overlay);
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GST_EXPORT
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void gst_video_overlay_handle_events (GstVideoOverlay * overlay,
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gboolean handle_events);
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GST_EXPORT
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void gst_video_overlay_set_window_handle (GstVideoOverlay * overlay,
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guintptr handle);
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/* public methods to dispatch bus messages */
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GST_EXPORT
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void gst_video_overlay_got_window_handle (GstVideoOverlay * overlay,
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guintptr handle);
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GST_EXPORT
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void gst_video_overlay_prepare_window_handle (GstVideoOverlay * overlay);
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GST_EXPORT
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gboolean gst_is_video_overlay_prepare_window_handle_message (GstMessage * msg);
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GST_EXPORT
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void gst_video_overlay_install_properties (GObjectClass * oclass,
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gint last_prop_id);
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GST_EXPORT
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gboolean gst_video_overlay_set_property (GObject * object,
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gint last_prop_id,
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guint property_id,
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const GValue * value);
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G_END_DECLS
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#endif /* __GST_VIDEO_OVERLAY_H__ */
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