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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
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* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
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*
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* tv-mixer.c: tv-mixer design virtual class function wrappers
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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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "xoverlay.h"
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static void gst_x_overlay_class_init (GstXOverlayClass *klass);
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GType
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gst_x_overlay_get_type (void)
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{
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static GType gst_x_overlay_type = 0;
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if (!gst_x_overlay_type) {
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static const GTypeInfo gst_x_overlay_info = {
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sizeof (GstXOverlayClass),
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(GBaseInitFunc) gst_x_overlay_class_init,
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NULL,
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NULL,
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NULL,
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NULL,
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0,
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0,
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NULL,
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};
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gst_x_overlay_type = g_type_register_static (G_TYPE_INTERFACE,
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"GstXOverlay",
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&gst_x_overlay_info, 0);
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g_type_interface_add_prerequisite (gst_x_overlay_type,
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GST_TYPE_INTERFACE);
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}
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return gst_x_overlay_type;
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}
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static void
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gst_x_overlay_class_init (GstXOverlayClass *klass)
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{
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/* default virtual functions */
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klass->set_xwindow_id = NULL;
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}
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void
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gst_x_overlay_set_xwindow_id (GstXOverlay *overlay,
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XID xwindow_id)
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{
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GstXOverlayClass *klass = GST_X_OVERLAY_GET_CLASS (overlay);
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if (klass->set_xwindow_id) {
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klass->set_xwindow_id (overlay, xwindow_id);
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}
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}
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