gstreamer/sys/v4l2/gstv4l2colorbalance.c
Wim Taymans 27bde5b96e sys/v4l2/Makefile.am: Fix makefile, list libs in stack order.
Original commit message from CVS:
* sys/v4l2/Makefile.am:
Fix makefile, list libs in stack order.
* sys/v4l2/gstv4l2colorbalance.c:
* sys/v4l2/gstv4l2colorbalance.h:
* sys/v4l2/gstv4l2object.c: (gst_v4l2_device_get_type),
(gst_v4l2_object_install_properties_helper):
* sys/v4l2/gstv4l2object.h:
* sys/v4l2/gstv4l2src.c: (gst_v4l2src_get_read),
(gst_v4l2src_get_mmap), (gst_v4l2src_create):
* sys/v4l2/gstv4l2src.h:
* sys/v4l2/gstv4l2tuner.h:
* sys/v4l2/gstv4l2vidorient.h:
* sys/v4l2/gstv4l2xoverlay.h:
* sys/v4l2/v4l2_calls.h:
* sys/v4l2/v4l2src_calls.h:
Fix coding style:
- Remove extern from functions.
- Fix header indentation.
Fix Flags, add defaults for properties.
Remove unused enums.
Fix TOO_LAZY in error messages.
2006-09-26 13:18:06 +00:00

106 lines
3 KiB
C

/* GStreamer
*
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
* 2006 Edgard Lima <edgard.lima@indt.org.br>
*
* gstv4l2colorbalance.c: color balance 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include "gstv4l2colorbalance.h"
#include "gstv4l2object.h"
GST_BOILERPLATE (GstV4l2ColorBalanceChannel,
gst_v4l2_color_balance_channel,
GstColorBalanceChannel, GST_TYPE_COLOR_BALANCE_CHANNEL);
static void
gst_v4l2_color_balance_channel_base_init (gpointer g_class)
{
}
static void
gst_v4l2_color_balance_channel_class_init (GstV4l2ColorBalanceChannelClass *
klass)
{
}
static void
gst_v4l2_color_balance_channel_init (GstV4l2ColorBalanceChannel * channel,
GstV4l2ColorBalanceChannelClass * klass)
{
channel->id = (guint32) - 1;
}
static G_GNUC_UNUSED gboolean
gst_v4l2_color_balance_contains_channel (GstV4l2Object * v4l2object,
GstV4l2ColorBalanceChannel * v4l2channel)
{
const GList *item;
for (item = v4l2object->colors; item != NULL; item = item->next)
if (item->data == v4l2channel)
return TRUE;
return FALSE;
}
const GList *
gst_v4l2_color_balance_list_channels (GstV4l2Object * v4l2object)
{
return v4l2object->colors;
}
void
gst_v4l2_color_balance_set_value (GstV4l2Object * v4l2object,
GstColorBalanceChannel * channel, gint value)
{
GstV4l2ColorBalanceChannel *v4l2channel =
GST_V4L2_COLOR_BALANCE_CHANNEL (channel);
/* assert that we're opened and that we're using a known item */
g_return_if_fail (GST_V4L2_IS_OPEN (v4l2object));
g_return_if_fail (gst_v4l2_color_balance_contains_channel (v4l2object,
v4l2channel));
gst_v4l2_set_attribute (v4l2object, v4l2channel->id, value);
}
gint
gst_v4l2_color_balance_get_value (GstV4l2Object * v4l2object,
GstColorBalanceChannel * channel)
{
GstV4l2ColorBalanceChannel *v4l2channel =
GST_V4L2_COLOR_BALANCE_CHANNEL (channel);
gint value;
/* assert that we're opened and that we're using a known item */
g_return_val_if_fail (GST_V4L2_IS_OPEN (v4l2object), 0);
g_return_val_if_fail (gst_v4l2_color_balance_contains_channel (v4l2object,
v4l2channel), 0);
if (!gst_v4l2_get_attribute (v4l2object, v4l2channel->id, &value))
return 0;
return value;
}