gstreamer/sys/v4l2/gstv4l2xoverlay.h
Ronald S. Bultje aa94247770 Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp...
Original commit message from CVS:
Some interface implementations for video4linux/video4linux2 plugins:
* a Tuner interface, with which one can select inputs and stations. Audio
work is underway here, but unfinished.
* A Xoverlay interface with which one can do simple overlay. Similar to
the API of the v4l/Xv XFree86 extension. Widget implementation for
GTK-2.0 coming up in the sandbox.
* Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty
basic and maybe somewhat overdesigned. But it'll do for now.

Apart from these interfaces, there's also a loadable library 'xwindowlistener'
that listenes to X for the movement of a window and the overlap of other
windows. This is partly copied from xawtv (and thus partly GPL :(), but it's
needed for the xoverlay interface implementation in the v4l/v4l2 elements.

Lastly, some small changes to remove redundant properties from the v4l/v4l2
elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00

42 lines
1.5 KiB
C

/* G-Streamer generic V4L2 element - X overlay interface implementation
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* gstv4l2xoverlay.h: tv mixer interface implementation for V4L2
*
* 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.
*/
#ifndef __GST_V4L2_X_OVERLAY_H__
#define __GST_V4L2_X_OVERLAY_H__
#include <gst/gst.h>
#include <gst/xoverlay/xoverlay.h>
#include "gstv4l2element.h"
G_BEGIN_DECLS
void gst_v4l2_xoverlay_interface_init (GstXOverlayClass *klass);
GstXWindowListener *
gst_v4l2_xoverlay_new (GstV4l2Element *v4l2element);
void gst_v4l2_xoverlay_free (GstV4l2Element *v4l2element);
/* signal handlers */
void gst_v4l2_xoverlay_open (GstV4l2Element *v4l2element);
void gst_v4l2_xoverlay_close (GstV4l2Element *v4l2element);
#endif /* __GST_V4L2_X_OVERLAY_H__ */