mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-10 11:29:55 +00:00
3a01d9a496
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!
74 lines
2 KiB
C
74 lines
2 KiB
C
/* GStreamer X-based Overlay
|
|
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
|
|
*
|
|
* tv-mixer.c: tv-mixer design virtual class function wrappers
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "xoverlay.h"
|
|
|
|
static void gst_x_overlay_class_init (GstXOverlayClass *klass);
|
|
|
|
GType
|
|
gst_x_overlay_get_type (void)
|
|
{
|
|
static GType gst_x_overlay_type = 0;
|
|
|
|
if (!gst_x_overlay_type) {
|
|
static const GTypeInfo gst_x_overlay_info = {
|
|
sizeof (GstXOverlayClass),
|
|
(GBaseInitFunc) gst_x_overlay_class_init,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
0,
|
|
0,
|
|
NULL,
|
|
};
|
|
|
|
gst_x_overlay_type = g_type_register_static (G_TYPE_INTERFACE,
|
|
"GstXOverlay",
|
|
&gst_x_overlay_info, 0);
|
|
g_type_interface_add_prerequisite (gst_x_overlay_type,
|
|
GST_TYPE_INTERFACE);
|
|
}
|
|
|
|
return gst_x_overlay_type;
|
|
}
|
|
|
|
static void
|
|
gst_x_overlay_class_init (GstXOverlayClass *klass)
|
|
{
|
|
/* default virtual functions */
|
|
klass->set_xwindow_id = NULL;
|
|
}
|
|
|
|
void
|
|
gst_x_overlay_set_xwindow_id (GstXOverlay *overlay,
|
|
XID xwindow_id)
|
|
{
|
|
GstXOverlayClass *klass = GST_X_OVERLAY_GET_CLASS (overlay);
|
|
|
|
if (klass->set_xwindow_id) {
|
|
klass->set_xwindow_id (overlay, xwindow_id);
|
|
}
|
|
}
|