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bf88547489
If xoverlay is available, v4l2sink should create a window for the overlay to display in. The window automatically tries to make itself as large as possible. This works well on a small screen, but perhaps should first attempt to use the size of the video that is played (no scaling).
66 lines
2.9 KiB
C
66 lines
2.9 KiB
C
/* GStreamer
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*
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* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
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* 2006 Edgard Lima <edgard.lima@indt.org.br>
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*
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* gstv4l2xoverlay.h: tv mixer interface implementation for V4L2
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_V4L2_X_OVERLAY_H__
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#define __GST_V4L2_X_OVERLAY_H__
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#include <X11/X.h>
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#include <gst/gst.h>
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#include <gst/interfaces/xoverlay.h>
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#include "gstv4l2object.h"
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G_BEGIN_DECLS
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void gst_v4l2_xoverlay_start (GstV4l2Object *v4l2object);
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void gst_v4l2_xoverlay_stop (GstV4l2Object *v4l2object);
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void gst_v4l2_xoverlay_interface_init (GstXOverlayClass * klass);
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void gst_v4l2_xoverlay_set_window_handle (GstV4l2Object * v4l2object,
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guintptr id);
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void gst_v4l2_xoverlay_prepare_xwindow_id (GstV4l2Object * v4l2object,
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gboolean required);
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#define GST_IMPLEMENT_V4L2_XOVERLAY_METHODS(Type, interface_as_function) \
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\
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static void \
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interface_as_function ## _xoverlay_set_window_handle (GstXOverlay * xoverlay, \
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guintptr id) \
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{ \
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Type *this = (Type*) xoverlay; \
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gst_v4l2_xoverlay_set_window_handle (this->v4l2object, id); \
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} \
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\
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static void \
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interface_as_function ## _xoverlay_interface_init (GstXOverlayClass * klass) \
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{ \
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/* default virtual functions */ \
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klass->set_window_handle = interface_as_function ## _xoverlay_set_window_handle; \
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\
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gst_v4l2_xoverlay_interface_init(klass); \
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} \
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#endif /* __GST_V4L2_X_OVERLAY_H__ */
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