gstreamer/gst/camerabin/gstcamerabincolorbalance.c

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2009-02-05 13:48:32 +00:00
/*
* GStreamer
* Copyright (C) 2008 Nokia Corporation <multimedia@maemo.org>
*
* 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.
*/
/*
* Includes
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "gstcamerabincolorbalance.h"
#include "gstcamerabin.h"
/*
* static functions implementation
*/
static const GList *
gst_camerabin_color_balance_list_channels (GstColorBalance * cb)
{
if (cb && GST_CAMERABIN (cb)->src_vid_src) {
GstColorBalance *cbl = GST_COLOR_BALANCE (GST_CAMERABIN (cb)->src_vid_src);
return gst_color_balance_list_channels (cbl);
} else {
return NULL;
}
}
static void
gst_camerabin_color_balance_set_value (GstColorBalance * cb,
GstColorBalanceChannel * channel, gint value)
{
if (cb && GST_CAMERABIN (cb)->src_vid_src) {
GstColorBalance *cbl = GST_COLOR_BALANCE (GST_CAMERABIN (cb)->src_vid_src);
gst_color_balance_set_value (cbl, channel, value);
}
}
static gint
gst_camerabin_color_balance_get_value (GstColorBalance * cb,
GstColorBalanceChannel * channel)
{
if (cb && GST_CAMERABIN (cb)->src_vid_src) {
GstColorBalance *cbl = GST_COLOR_BALANCE (GST_CAMERABIN (cb)->src_vid_src);
return gst_color_balance_get_value (cbl, channel);
} else {
return 0;
}
}
/*
* extern functions implementation
*/
void
gst_camerabin_color_balance_init (GstColorBalanceClass * iface)
{
/* FIXME: to get the same type as v4l2src */
GST_COLOR_BALANCE_TYPE (iface) = GST_COLOR_BALANCE_HARDWARE;
iface->list_channels = gst_camerabin_color_balance_list_channels;
iface->set_value = gst_camerabin_color_balance_set_value;
iface->get_value = gst_camerabin_color_balance_get_value;
}