mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-09 05:38:58 +00:00
Original commit message from CVS: 2004-01-15 Julien MOUTTE <julien@moutte.net> * ext/alsa/gstalsamixer.c: (gst_alsa_mixer_interface_init): Setting mixer interface type to HARDWARE. * gst-libs/gst/mixer/mixer.c: (gst_mixer_class_init): Adding a default type to SOFTWARE. * gst-libs/gst/mixer/mixer.h: Adding mixer interface type and macro. * gst-libs/gst/mixer/mixertrack.h: Adding mixertrack flag SOFTWARE. * gst/volume/gstvolume.c: (gst_volume_interface_supported), (gst_volume_interface_init), (gst_volume_list_tracks), (gst_volume_set_volume), (gst_volume_get_volume), (gst_volume_set_mute), (gst_volume_mixer_init), (gst_volume_dispose), (gst_volume_get_type), (volume_class_init), (volume_init): Implementing mixer interface. * gst/volume/gstvolume.h: Adding tracklist for mixer interface. * sys/oss/gstosselement.c: (gst_osselement_get_type), (gst_osselement_change_state): Removing some trailing commas in structures. * sys/oss/gstossmixer.c: (gst_ossmixer_interface_init): Setting mixer interface type to HARDWARE. * sys/v4l/gstv4lcolorbalance.c: (gst_v4l_color_balance_interface_init): Setting colorbalance interface type to HARDWARE. * sys/v4l2/gstv4l2colorbalance.c: (gst_v4l2_color_balance_interface_init): Setting colorbalance interface type to HARDWARE. * sys/xvimage/xvimagesink.c: (gst_xvimagesink_chain): use exactly the same code than ximagesink for event handling.
153 lines
4.5 KiB
C
153 lines
4.5 KiB
C
/* GStreamer Color Balance interface implementation
|
|
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
|
|
*
|
|
* gstv4lcolorbalance.c: color balance interface implementation for V4L
|
|
*
|
|
* 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 "gstv4lcolorbalance.h"
|
|
#include "gstv4lelement.h"
|
|
|
|
static void
|
|
gst_v4l_color_balance_channel_class_init(GstV4lColorBalanceChannelClass *klass);
|
|
static void
|
|
gst_v4l_color_balance_channel_init (GstV4lColorBalanceChannel *channel);
|
|
|
|
static const GList *
|
|
gst_v4l_color_balance_list_channels (GstColorBalance *balance);
|
|
static void
|
|
gst_v4l_color_balance_set_value (GstColorBalance *balance,
|
|
GstColorBalanceChannel *channel,
|
|
gint value);
|
|
static gint
|
|
gst_v4l_color_balance_get_value (GstColorBalance *balance,
|
|
GstColorBalanceChannel *channel);
|
|
|
|
static GstColorBalanceChannelClass *parent_class = NULL;
|
|
|
|
GType
|
|
gst_v4l_color_balance_channel_get_type (void)
|
|
{
|
|
static GType gst_v4l_color_balance_channel_type = 0;
|
|
|
|
if (!gst_v4l_color_balance_channel_type) {
|
|
static const GTypeInfo v4l_tuner_channel_info = {
|
|
sizeof (GstV4lColorBalanceChannelClass),
|
|
NULL,
|
|
NULL,
|
|
(GClassInitFunc) gst_v4l_color_balance_channel_class_init,
|
|
NULL,
|
|
NULL,
|
|
sizeof (GstV4lColorBalanceChannel),
|
|
0,
|
|
(GInstanceInitFunc) gst_v4l_color_balance_channel_init,
|
|
NULL
|
|
};
|
|
|
|
gst_v4l_color_balance_channel_type =
|
|
g_type_register_static (GST_TYPE_COLOR_BALANCE_CHANNEL,
|
|
"GstV4lColorBalanceChannel",
|
|
&v4l_tuner_channel_info, 0);
|
|
}
|
|
|
|
return gst_v4l_color_balance_channel_type;
|
|
}
|
|
|
|
static void
|
|
gst_v4l_color_balance_channel_class_init (GstV4lColorBalanceChannelClass *klass)
|
|
{
|
|
parent_class = g_type_class_ref (GST_TYPE_COLOR_BALANCE_CHANNEL);
|
|
}
|
|
|
|
static void
|
|
gst_v4l_color_balance_channel_init (GstV4lColorBalanceChannel *channel)
|
|
{
|
|
channel->index = 0;
|
|
}
|
|
|
|
void
|
|
gst_v4l_color_balance_interface_init (GstColorBalanceClass *klass)
|
|
{
|
|
GST_COLOR_BALANCE_TYPE (klass) = GST_COLOR_BALANCE_HARDWARE;
|
|
|
|
/* default virtual functions */
|
|
klass->list_channels = gst_v4l_color_balance_list_channels;
|
|
klass->set_value = gst_v4l_color_balance_set_value;
|
|
klass->get_value = gst_v4l_color_balance_get_value;
|
|
}
|
|
|
|
static gboolean
|
|
gst_v4l_color_balance_contains_channel (GstV4lElement *v4lelement,
|
|
GstV4lColorBalanceChannel *v4lchannel)
|
|
{
|
|
const GList *item;
|
|
|
|
for (item = v4lelement->colors; item != NULL; item = item->next)
|
|
if (item->data == v4lchannel)
|
|
return TRUE;
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static const GList *
|
|
gst_v4l_color_balance_list_channels (GstColorBalance *balance)
|
|
{
|
|
return GST_V4LELEMENT (balance)->colors;
|
|
}
|
|
|
|
static void
|
|
gst_v4l_color_balance_set_value (GstColorBalance *balance,
|
|
GstColorBalanceChannel *channel,
|
|
gint value)
|
|
{
|
|
GstV4lElement *v4lelement = GST_V4LELEMENT (balance);
|
|
GstV4lColorBalanceChannel *v4lchannel =
|
|
GST_V4L_COLOR_BALANCE_CHANNEL (channel);
|
|
|
|
/* assert that we're opened and that we're using a known item */
|
|
g_return_if_fail (GST_V4L_IS_OPEN (v4lelement));
|
|
g_return_if_fail (gst_v4l_color_balance_contains_channel (v4lelement,
|
|
v4lchannel));
|
|
|
|
gst_v4l_set_picture (v4lelement, v4lchannel->index, value);
|
|
}
|
|
|
|
static gint
|
|
gst_v4l_color_balance_get_value (GstColorBalance *balance,
|
|
GstColorBalanceChannel *channel)
|
|
{
|
|
GstV4lElement *v4lelement = GST_V4LELEMENT (balance);
|
|
GstV4lColorBalanceChannel *v4lchannel =
|
|
GST_V4L_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_V4L_IS_OPEN (v4lelement), 0);
|
|
g_return_val_if_fail (gst_v4l_color_balance_contains_channel (v4lelement,
|
|
v4lchannel),
|
|
0);
|
|
|
|
if (!gst_v4l_get_picture (v4lelement, v4lchannel->index, &value))
|
|
return 0;
|
|
|
|
return value;
|
|
}
|