1 /*

     2  * GStreamer

     3  * Copyright (C) 2008 Nokia Corporation <multimedia@maemo.org>

     4  *

     5  * This library is free software; you can redistribute it and/or

     6  * modify it under the terms of the GNU Library General Public

     7  * License as published by the Free Software Foundation; either

     8  * version 2 of the License, or (at your option) any later version.

     9  *

    10  * This library is distributed in the hope that it will be useful,

    11  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    13  * Library General Public License for more details.

    14  *

    15  * You should have received a copy of the GNU Library General Public

    16  * License along with this library; if not, write to the

    17  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

    18  * Boston, MA 02111-1307, USA.

    19  */

    20 

    21 /*

    22  * Includes

    23  */

    24 

    25 #ifdef HAVE_CONFIG_H

    26 #include <config.h>

    27 #endif

    28 

    29 #include "gstcamerabincolorbalance.h"

    30 #include "gstcamerabin.h"

    31 

    32 /*

    33  * static functions implementation

    34  */

    35 

    36 static const GList *

    37 gst_camerabin_color_balance_list_channels (GstColorBalance * cb)

    38 {

    39   if (cb && GST_CAMERABIN (cb)->src_vid_src) {

    40     GstColorBalance *cbl = GST_COLOR_BALANCE (GST_CAMERABIN (cb)->src_vid_src);

    41     return gst_color_balance_list_channels (cbl);

    42   } else {

    43     return NULL;

    44   }

    45 }

    46 

    47 static void

    48 gst_camerabin_color_balance_set_value (GstColorBalance * cb,

    49     GstColorBalanceChannel * channel, gint value)

    50 {

    51   if (cb && GST_CAMERABIN (cb)->src_vid_src) {

    52     GstColorBalance *cbl = GST_COLOR_BALANCE (GST_CAMERABIN (cb)->src_vid_src);

    53     gst_color_balance_set_value (cbl, channel, value);

    54   }

    55 }

    56 

    57 static gint

    58 gst_camerabin_color_balance_get_value (GstColorBalance * cb,

    59     GstColorBalanceChannel * channel)

    60 {

    61   if (cb && GST_CAMERABIN (cb)->src_vid_src) {

    62     GstColorBalance *cbl = GST_COLOR_BALANCE (GST_CAMERABIN (cb)->src_vid_src);

    63     return gst_color_balance_get_value (cbl, channel);

    64   } else {

    65     return 0;

    66   }

    67 }

    68 

    69 /*

    70  * extern functions implementation

    71  */

    72 

    73 void

    74 gst_camerabin_color_balance_init (GstColorBalanceClass * iface)

    75 {

    76   /* FIXME: to get the same type as v4l2src */

    77   GST_COLOR_BALANCE_TYPE (iface) = GST_COLOR_BALANCE_HARDWARE;

    78   iface->list_channels = gst_camerabin_color_balance_list_channels;

    79   iface->set_value = gst_camerabin_color_balance_set_value;

    80   iface->get_value = gst_camerabin_color_balance_get_value;

    81 }