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Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp...

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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!
This commit is contained in:
Ronald S. Bultje 2003-10-10 12:47:41 +00:00
parent 760a841261
commit 0f124a569d
48 changed files with 4206 additions and 628 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
configure.ac
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@ -1287,6 +1287,7 @@ ext/xvid/Makefile
gst-libs/Makefile
gst-libs/gst/Makefile
gst-libs/gst/audio/Makefile
gst-libs/gst/colorbalance/Makefile
gst-libs/gst/floatcast/Makefile
gst-libs/gst/gconf/Makefile
gst-libs/gst/idct/Makefile
@ -1296,7 +1297,10 @@ gst-libs/gst/navigation/Makefile
gst-libs/gst/play/Makefile
gst-libs/gst/resample/Makefile
gst-libs/gst/riff/Makefile
gst-libs/gst/tuner/Makefile
gst-libs/gst/video/Makefile
gst-libs/gst/xoverlay/Makefile
gst-libs/gst/xwindowlistener/Makefile
gst-libs/ext/Makefile
gst-libs/ext/ffmpeg/Makefile
gst-libs/ext/mplex/Makefile

22
gst-libs/gst/Makefile.am
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@ -4,10 +4,20 @@ else
GCONF_DIR=
endif
SUBDIRS = audio idct resample riff floatcast \
$(GCONF_DIR) media-info mixer \
navigation play video
if USE_XFREE
X_DIR=xwindowlistener
else
X_DIR=
endif
DIST_SUBDIRS = audio idct resample riff floatcast \
gconf media-info mixer navigation \
play video
SUBDIRS = audio colorbalance floatcast \
$(GCONF_DIR) idct media-info \
mixer navigation play \
resample riff tuner video \
xoverlay $(X_DIR)
DIST_SUBDIRS = audio colorbalance floatcast \
gconf idct media-info \
mixer navigation play \
resample riff tuner video \
xoverlay xwindowlistener

15
gst-libs/gst/colorbalance/Makefile.am Normal file
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@ -0,0 +1,15 @@
libgstinterfacesincludedir = \
$(includedir)/gstreamer-@GST_MAJORMINOR@/gst/colorbalance
libgstinterfacesinclude_HEADERS = \
colorbalance.h \
colorbalancechannel.h
lib_LTLIBRARIES = libgstcolorbalance.la
libgstcolorbalance_la_SOURCES = \
colorbalance.c \
colorbalancechannel.c
libgstcolorbalance_la_LIBADD =
libgstcolorbalance_la_CFLAGS = $(GST_CFLAGS) $(GST_OPT_CFLAGS)
libgstcolorbalance_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)

103
gst-libs/gst/colorbalance/colorbalance.c Normal file
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@ -0,0 +1,103 @@
/* GStreamer Color Balance
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* colorbalance.c: image color balance interface design
* virtual class function wrappers
*
* 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 "colorbalance.h"
static void gst_color_balance_class_init (GstColorBalanceClass *klass);
GType
gst_color_balance_get_type (void)
{
static GType gst_color_balance_type = 0;
if (!gst_color_balance_type) {
static const GTypeInfo gst_color_balance_info = {
sizeof (GstColorBalanceClass),
(GBaseInitFunc) gst_color_balance_class_init,
NULL,
NULL,
NULL,
NULL,
0,
0,
NULL,
};
gst_color_balance_type = g_type_register_static (G_TYPE_INTERFACE,
"GstColorBalance",
&gst_color_balance_info, 0);
g_type_interface_add_prerequisite (gst_color_balance_type,
GST_TYPE_INTERFACE);
}
return gst_color_balance_type;
}
static void
gst_color_balance_class_init (GstColorBalanceClass *klass)
{
/* default virtual functions */
klass->list_channels = NULL;
klass->set_value = NULL;
klass->get_value = NULL;
}
const GList *
gst_color_balance_list_channels (GstColorBalance *balance)
{
GstColorBalanceClass *klass = GST_COLOR_BALANCE_GET_CLASS (balance);
if (klass->list_channels) {
return klass->list_channels (balance);
}
return NULL;
}
void
gst_color_balance_set_value (GstColorBalance *balance,
GstColorBalanceChannel *channel,
gint value)
{
GstColorBalanceClass *klass = GST_COLOR_BALANCE_GET_CLASS (balance);
if (klass->set_value) {
klass->set_value (balance, channel, value);
}
}
gint
gst_color_balance_get_value (GstColorBalance *balance,
GstColorBalanceChannel *channel)
{
GstColorBalanceClass *klass = GST_COLOR_BALANCE_GET_CLASS (balance);
if (klass->get_value) {
return klass->get_value (balance, channel);
}
return channel->min_value;
}

73
gst-libs/gst/colorbalance/colorbalance.h Normal file
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@ -0,0 +1,73 @@
/* GStreamer Color Balance
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* color-balance.h: image color balance interface design
*
* 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.
*/
#ifndef __GST_COLOR_BALANCE_H__
#define __GST_COLOR_BALANCE_H__
#include <gst/gst.h>
#include <gst/colorbalance/colorbalancechannel.h>
G_BEGIN_DECLS
#define GST_TYPE_COLOR_BALANCE \
(gst_color_balance_get_type ())
#define GST_COLOR_BALANCE(obj) \
(GST_INTERFACE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_COLOR_BALANCE, \
GstColorBalance))
#define GST_COLOR_BALANCE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_COLOR_BALANCE, \
GstColorBalanceClass))
#define GST_IS_COLOR_BALANCE(obj) \
(GST_INTERFACE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_COLOR_BALANCE))
#define GST_IS_COLOR_BALANCE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_COLOR_BALANCE))
#define GST_COLOR_BALANCE_GET_CLASS(inst) \
(G_TYPE_INSTANCE_GET_INTERFACE ((inst), GST_TYPE_COLOR_BALANCE, GstColorBalanceClass))
typedef struct _GstColorBalance GstColorBalance;
typedef struct _GstColorBalanceClass {
GTypeInterface klass;
/* virtual functions */
const GList * (* list_channels) (GstColorBalance *balance);
void (* set_value) (GstColorBalance *balance,
GstColorBalanceChannel *channel,
gint value);
gint (* get_value) (GstColorBalance *balance,
GstColorBalanceChannel *channel);
} GstColorBalanceClass;
GType gst_color_balance_get_type (void);
/* virtual class function wrappers */
const GList *
gst_color_balance_list_channels (GstColorBalance *balance);
void gst_color_balance_set_value (GstColorBalance *balance,
GstColorBalanceChannel *channel,
gint value);
gint gst_color_balance_get_value (GstColorBalance *balance,
GstColorBalanceChannel *channel);
G_END_DECLS
#endif /* __GST_COLOR_BALANCE_H__ */

104
gst-libs/gst/colorbalance/colorbalancechannel.c Normal file
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@ -0,0 +1,104 @@
/* GStreamer Color Balance
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* colorbalancechannel.c: colorbalance channel object design
*
* 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 "colorbalancechannel.h"
enum {
/* FILL ME */
SIGNAL_VALUE_CHANGED,
LAST_SIGNAL
};
static void gst_color_balance_channel_class_init (GstColorBalanceChannelClass *klass);
static void gst_color_balance_channel_init (GstColorBalanceChannel *balance);
static void gst_color_balance_channel_dispose (GObject *object);
static GObjectClass *parent_class = NULL;
static guint signals[LAST_SIGNAL] = { 0 };
GType
gst_color_balance_channel_get_type (void)
{
static GType gst_color_balance_channel_type = 0;
if (!gst_color_balance_channel_type) {
static const GTypeInfo color_balance_channel_info = {
sizeof (GstColorBalanceChannelClass),
NULL,
NULL,
(GClassInitFunc) gst_color_balance_channel_class_init,
NULL,
NULL,
sizeof (GstColorBalanceChannel),
0,
(GInstanceInitFunc) gst_color_balance_channel_init,
NULL
};
gst_color_balance_channel_type =
g_type_register_static (G_TYPE_OBJECT,
"GstColorBalanceChannel",
&color_balance_channel_info, 0);
}
return gst_color_balance_channel_type;
}
static void
gst_color_balance_channel_class_init (GstColorBalanceChannelClass *klass)
{
GObjectClass *object_klass = (GObjectClass *) klass;
parent_class = g_type_class_ref (G_TYPE_OBJECT);
signals[SIGNAL_VALUE_CHANGED] =
g_signal_new ("value_changed", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstColorBalanceChannelClass,
value_changed),
NULL, NULL, g_cclosure_marshal_VOID__INT,
G_TYPE_NONE, 1, G_TYPE_INT);
object_klass->dispose = gst_color_balance_channel_dispose;
}
static void
gst_color_balance_channel_init (GstColorBalanceChannel *channel)
{
channel->label = NULL;
channel->min_value = channel->max_value = 0;
}
static void
gst_color_balance_channel_dispose (GObject *object)
{
GstColorBalanceChannel *channel = GST_COLOR_BALANCE_CHANNEL (object);
if (channel->label)
g_free (channel->label);
if (parent_class->dispose)
parent_class->dispose (object);
}

62
gst-libs/gst/colorbalance/colorbalancechannel.h Normal file
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@ -0,0 +1,62 @@
/* GStreamer Color Balance
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* colorbalancechannel.h: individual channel object
*
* 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.
*/
#ifndef __GST_COLOR_BALANCE_CHANNEL_H__
#define __GST_COLOR_BALANCE_CHANNEL_H__
#include <gst/gst.h>
G_BEGIN_DECLS
#define GST_TYPE_COLOR_BALANCE_CHANNEL \
(gst_color_balance_channel_get_type ())
#define GST_COLOR_BALANCE_CHANNEL(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_COLOR_BALANCE_CHANNEL, \
GstColorBalanceChannel))
#define GST_COLOR_BALANCE_CHANNEL_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_COLOR_BALANCE_CHANNEL, \
GstColorBalanceChannelClass))
#define GST_IS_COLOR_BALANCE_CHANNEL(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_COLOR_BALANCE_CHANNEL))
#define GST_IS_COLOR_BALANCE_CHANNEL_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_COLOR_BALANCE_CHANNEL))
typedef struct _GstColorBalanceChannel {
GObject parent;
gchar *label;
gint min_value,
max_value;
} GstColorBalanceChannel;
typedef struct _GstColorBalanceChannelClass {
GObjectClass parent;
/* signals */
void (* value_changed) (GstColorBalanceChannel *channel,
gint value);
} GstColorBalanceChannelClass;
GType gst_color_balance_channel_get_type (void);
G_END_DECLS
#endif /* __GST_COLOR_BALANCE_CHANNEL_H__ */

103
gst-libs/gst/interfaces/colorbalance.c Normal file
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@ -0,0 +1,103 @@
/* GStreamer Color Balance
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* colorbalance.c: image color balance interface design
* virtual class function wrappers
*
* 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 "colorbalance.h"
static void gst_color_balance_class_init (GstColorBalanceClass *klass);
GType
gst_color_balance_get_type (void)
{
static GType gst_color_balance_type = 0;
if (!gst_color_balance_type) {
static const GTypeInfo gst_color_balance_info = {
sizeof (GstColorBalanceClass),
(GBaseInitFunc) gst_color_balance_class_init,
NULL,
NULL,
NULL,
NULL,
0,
0,
NULL,
};
gst_color_balance_type = g_type_register_static (G_TYPE_INTERFACE,
"GstColorBalance",
&gst_color_balance_info, 0);
g_type_interface_add_prerequisite (gst_color_balance_type,
GST_TYPE_INTERFACE);
}
return gst_color_balance_type;
}
static void
gst_color_balance_class_init (GstColorBalanceClass *klass)
{
/* default virtual functions */
klass->list_channels = NULL;
klass->set_value = NULL;
klass->get_value = NULL;
}
const GList *
gst_color_balance_list_channels (GstColorBalance *balance)
{
GstColorBalanceClass *klass = GST_COLOR_BALANCE_GET_CLASS (balance);
if (klass->list_channels) {
return klass->list_channels (balance);
}
return NULL;
}
void
gst_color_balance_set_value (GstColorBalance *balance,
GstColorBalanceChannel *channel,
gint value)
{
GstColorBalanceClass *klass = GST_COLOR_BALANCE_GET_CLASS (balance);
if (klass->set_value) {
klass->set_value (balance, channel, value);
}
}
gint
gst_color_balance_get_value (GstColorBalance *balance,
GstColorBalanceChannel *channel)
{
GstColorBalanceClass *klass = GST_COLOR_BALANCE_GET_CLASS (balance);
if (klass->get_value) {
return klass->get_value (balance, channel);
}
return channel->min_value;
}

73
gst-libs/gst/interfaces/colorbalance.h Normal file
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@ -0,0 +1,73 @@
/* GStreamer Color Balance
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* color-balance.h: image color balance interface design
*
* 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.
*/
#ifndef __GST_COLOR_BALANCE_H__
#define __GST_COLOR_BALANCE_H__
#include <gst/gst.h>
#include <gst/colorbalance/colorbalancechannel.h>
G_BEGIN_DECLS
#define GST_TYPE_COLOR_BALANCE \
(gst_color_balance_get_type ())
#define GST_COLOR_BALANCE(obj) \
(GST_INTERFACE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_COLOR_BALANCE, \
GstColorBalance))
#define GST_COLOR_BALANCE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_COLOR_BALANCE, \
GstColorBalanceClass))
#define GST_IS_COLOR_BALANCE(obj) \
(GST_INTERFACE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_COLOR_BALANCE))
#define GST_IS_COLOR_BALANCE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_COLOR_BALANCE))
#define GST_COLOR_BALANCE_GET_CLASS(inst) \
(G_TYPE_INSTANCE_GET_INTERFACE ((inst), GST_TYPE_COLOR_BALANCE, GstColorBalanceClass))
typedef struct _GstColorBalance GstColorBalance;
typedef struct _GstColorBalanceClass {
GTypeInterface klass;
/* virtual functions */
const GList * (* list_channels) (GstColorBalance *balance);
void (* set_value) (GstColorBalance *balance,
GstColorBalanceChannel *channel,
gint value);
gint (* get_value) (GstColorBalance *balance,
GstColorBalanceChannel *channel);
} GstColorBalanceClass;
GType gst_color_balance_get_type (void);
/* virtual class function wrappers */
const GList *
gst_color_balance_list_channels (GstColorBalance *balance);
void gst_color_balance_set_value (GstColorBalance *balance,
GstColorBalanceChannel *channel,
gint value);
gint gst_color_balance_get_value (GstColorBalance *balance,
GstColorBalanceChannel *channel);
G_END_DECLS
#endif /* __GST_COLOR_BALANCE_H__ */

104
gst-libs/gst/interfaces/colorbalancechannel.c Normal file
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/* GStreamer Color Balance
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* colorbalancechannel.c: colorbalance channel object design
*
* 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 "colorbalancechannel.h"
enum {
/* FILL ME */
SIGNAL_VALUE_CHANGED,
LAST_SIGNAL
};
static void gst_color_balance_channel_class_init (GstColorBalanceChannelClass *klass);
static void gst_color_balance_channel_init (GstColorBalanceChannel *balance);
static void gst_color_balance_channel_dispose (GObject *object);
static GObjectClass *parent_class = NULL;
static guint signals[LAST_SIGNAL] = { 0 };
GType
gst_color_balance_channel_get_type (void)
{
static GType gst_color_balance_channel_type = 0;
if (!gst_color_balance_channel_type) {
static const GTypeInfo color_balance_channel_info = {
sizeof (GstColorBalanceChannelClass),
NULL,
NULL,
(GClassInitFunc) gst_color_balance_channel_class_init,
NULL,
NULL,
sizeof (GstColorBalanceChannel),
0,
(GInstanceInitFunc) gst_color_balance_channel_init,
NULL
};
gst_color_balance_channel_type =
g_type_register_static (G_TYPE_OBJECT,
"GstColorBalanceChannel",
&color_balance_channel_info, 0);
}
return gst_color_balance_channel_type;
}
static void
gst_color_balance_channel_class_init (GstColorBalanceChannelClass *klass)
{
GObjectClass *object_klass = (GObjectClass *) klass;
parent_class = g_type_class_ref (G_TYPE_OBJECT);
signals[SIGNAL_VALUE_CHANGED] =
g_signal_new ("value_changed", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstColorBalanceChannelClass,
value_changed),
NULL, NULL, g_cclosure_marshal_VOID__INT,
G_TYPE_NONE, 1, G_TYPE_INT);
object_klass->dispose = gst_color_balance_channel_dispose;
}
static void
gst_color_balance_channel_init (GstColorBalanceChannel *channel)
{
channel->label = NULL;
channel->min_value = channel->max_value = 0;
}
static void
gst_color_balance_channel_dispose (GObject *object)
{
GstColorBalanceChannel *channel = GST_COLOR_BALANCE_CHANNEL (object);
if (channel->label)
g_free (channel->label);
if (parent_class->dispose)
parent_class->dispose (object);
}

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gst-libs/gst/interfaces/colorbalancechannel.h Normal file
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/* GStreamer Color Balance
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* colorbalancechannel.h: individual channel object
*
* 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.
*/
#ifndef __GST_COLOR_BALANCE_CHANNEL_H__
#define __GST_COLOR_BALANCE_CHANNEL_H__
#include <gst/gst.h>
G_BEGIN_DECLS
#define GST_TYPE_COLOR_BALANCE_CHANNEL \
(gst_color_balance_channel_get_type ())
#define GST_COLOR_BALANCE_CHANNEL(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_COLOR_BALANCE_CHANNEL, \
GstColorBalanceChannel))
#define GST_COLOR_BALANCE_CHANNEL_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_COLOR_BALANCE_CHANNEL, \
GstColorBalanceChannelClass))
#define GST_IS_COLOR_BALANCE_CHANNEL(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_COLOR_BALANCE_CHANNEL))
#define GST_IS_COLOR_BALANCE_CHANNEL_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_COLOR_BALANCE_CHANNEL))
typedef struct _GstColorBalanceChannel {
GObject parent;
gchar *label;
gint min_value,
max_value;
} GstColorBalanceChannel;
typedef struct _GstColorBalanceChannelClass {
GObjectClass parent;
/* signals */
void (* value_changed) (GstColorBalanceChannel *channel,
gint value);
} GstColorBalanceChannelClass;
GType gst_color_balance_channel_get_type (void);
G_END_DECLS
#endif /* __GST_COLOR_BALANCE_CHANNEL_H__ */

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/* GStreamer Tuner
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* tuner.c: tuner design virtual class function wrappers
*
* 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 "tuner.h"
static void gst_tuner_class_init (GstTunerClass *klass);
GType
gst_tuner_get_type (void)
{
static GType gst_tuner_type = 0;
if (!gst_tuner_type) {
static const GTypeInfo gst_tuner_info = {
sizeof (GstTunerClass),
(GBaseInitFunc) gst_tuner_class_init,
NULL,
NULL,
NULL,
NULL,
0,
0,
NULL,
};
gst_tuner_type = g_type_register_static (G_TYPE_INTERFACE,
"GstTuner",
&gst_tuner_info, 0);
g_type_interface_add_prerequisite (gst_tuner_type,
GST_TYPE_INTERFACE);
}
return gst_tuner_type;
}
static void
gst_tuner_class_init (GstTunerClass *klass)
{
/* default virtual functions */
klass->list_channels = NULL;
klass->set_channel = NULL;
klass->get_channel = NULL;
klass->list_norms = NULL;
klass->set_norm = NULL;
klass->get_norm = NULL;
klass->set_frequency = NULL;
klass->get_frequency = NULL;
klass->signal_strength = NULL;
}
const GList *
gst_tuner_list_channels (GstTuner *tuner)
{
GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
if (klass->list_channels) {
return klass->list_channels (tuner);
}
return NULL;
}
void
gst_tuner_set_channel (GstTuner *tuner,
GstTunerChannel *channel)
{
GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
if (klass->set_channel) {
klass->set_channel (tuner, channel);
}
}
const GstTunerChannel *
gst_tuner_get_channel (GstTuner *tuner)
{
GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
if (klass->get_channel) {
return klass->get_channel (tuner);
}
return NULL;
}
const GList *
gst_tuner_list_norms (GstTuner *tuner)
{
GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
if (klass->list_norms) {
return klass->list_norms (tuner);
}
return NULL;
}
void
gst_tuner_set_norm (GstTuner *tuner,
GstTunerNorm *norm)
{
GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
if (klass->set_norm) {
klass->set_norm (tuner, norm);
}
}
const GstTunerNorm *
gst_tuner_get_norm (GstTuner *tuner)
{
GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
if (klass->get_norm) {
return klass->get_norm (tuner);
}
return NULL;
}
void
gst_tuner_set_frequency (GstTuner *tuner,
GstTunerChannel *channel,
gulong frequency)
{
GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
g_return_if_fail (GST_TUNER_CHANNEL_HAS_FLAG (channel,
GST_TUNER_CHANNEL_FREQUENCY));
if (klass->set_frequency) {
klass->set_frequency (tuner, channel, frequency);
}
}
gulong
gst_tuner_get_frequency (GstTuner *tuner,
GstTunerChannel *channel)
{
GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
g_return_val_if_fail (GST_TUNER_CHANNEL_HAS_FLAG (channel,
GST_TUNER_CHANNEL_FREQUENCY), 0);
if (klass->get_frequency) {
return klass->get_frequency (tuner, channel);
}
return 0;
}
gint
gst_tuner_signal_strength (GstTuner *tuner,
GstTunerChannel *channel)
{
GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
g_return_val_if_fail (GST_TUNER_CHANNEL_HAS_FLAG (channel,
GST_TUNER_CHANNEL_FREQUENCY), 0);
if (klass->signal_strength) {
return klass->signal_strength (tuner, channel);
}
return 0;
}

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/* GStreamer Tuner
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* tuner.h: tuner interface design
*
* 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.
*/
#ifndef __GST_TUNER_H__
#define __GST_TUNER_H__
#include <gst/gst.h>
#include <gst/tuner/tunernorm.h>
#include <gst/tuner/tunerchannel.h>
G_BEGIN_DECLS
#define GST_TYPE_TUNER \
(gst_tuner_get_type ())
#define GST_TUNER(obj) \
(GST_INTERFACE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_TUNER, GstTuner))
#define GST_TUNER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_TUNER, GstTunerClass))
#define GST_IS_TUNER(obj) \
(GST_INTERFACE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_TUNER))
#define GST_IS_TUNER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_TUNER))
#define GST_TUNER_GET_CLASS(inst) \
(G_TYPE_INSTANCE_GET_INTERFACE ((inst), GST_TYPE_TUNER, GstTunerClass))
typedef struct _GstTuner GstTuner;
typedef struct _GstTunerClass {
GTypeInterface klass;
/* virtual functions */
const GList * (* list_channels) (GstTuner *tuner);
void (* set_channel) (GstTuner *tuner,
GstTunerChannel *channel);
const GstTunerChannel *
(* get_channel) (GstTuner *tuner);
const GList * (* list_norms) (GstTuner *tuner);
void (* set_norm) (GstTuner *tuner,
GstTunerNorm *norm);
const GstTunerNorm *
(* get_norm) (GstTuner *tuner);
void (* set_frequency) (GstTuner *tuner,
GstTunerChannel *channel,
gulong frequency);
gulong (* get_frequency) (GstTuner *tuner,
GstTunerChannel *channel);
gint (* signal_strength) (GstTuner *tuner,
GstTunerChannel *channel);
} GstTunerClass;
GType gst_tuner_get_type (void);
/* virtual class function wrappers */
const GList * gst_tuner_list_channels (GstTuner *tuner);
void gst_tuner_set_channel (GstTuner *tuner,
GstTunerChannel *channel);
const GstTunerChannel *
gst_tuner_get_channel (GstTuner *tuner);
const GList * gst_tuner_list_norms (GstTuner *tuner);
void gst_tuner_set_norm (GstTuner *tuner,
GstTunerNorm *channel);
const GstTunerNorm *
gst_tuner_get_norm (GstTuner *tuner);
void gst_tuner_set_frequency (GstTuner *tuner,
GstTunerChannel *channel,
gulong frequency);
gulong gst_tuner_get_frequency (GstTuner *tuner,
GstTunerChannel *channel);
gint gst_tuner_signal_strength (GstTuner *tuner,
GstTunerChannel *channel);
G_END_DECLS
#endif /* __GST_TUNER_H__ */

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/* GStreamer Tuner
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* tunerchannel.c: tuner channel object design
*
* 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 "tunerchannel.h"
enum {
/* FILL ME */
SIGNAL_FREQUENCY_CHANGED,
SIGNAL_SIGNAL_CHANGED,
LAST_SIGNAL
};
static void gst_tuner_channel_class_init (GstTunerChannelClass *klass);
static void gst_tuner_channel_init (GstTunerChannel *channel);
static void gst_tuner_channel_dispose (GObject *object);
static GObjectClass *parent_class = NULL;
static guint signals[LAST_SIGNAL] = { 0 };
GType
gst_tuner_channel_get_type (void)
{
static GType gst_tuner_channel_type = 0;
if (!gst_tuner_channel_type) {
static const GTypeInfo tuner_channel_info = {
sizeof (GstTunerChannelClass),
NULL,
NULL,
(GClassInitFunc) gst_tuner_channel_class_init,
NULL,
NULL,
sizeof (GstTunerChannel),
0,
(GInstanceInitFunc) gst_tuner_channel_init,
NULL
};
gst_tuner_channel_type =
g_type_register_static (G_TYPE_OBJECT,
"GstTunerChannel",
&tuner_channel_info, 0);
}
return gst_tuner_channel_type;
}
static void
gst_tuner_channel_class_init (GstTunerChannelClass *klass)
{
GObjectClass *object_klass = (GObjectClass *) klass;
parent_class = g_type_class_ref (G_TYPE_OBJECT);
signals[SIGNAL_FREQUENCY_CHANGED] =
g_signal_new ("frequency_changed", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstTunerChannelClass,
frequency_changed),
NULL, NULL, g_cclosure_marshal_VOID__ULONG,
G_TYPE_NONE, 1, G_TYPE_ULONG);
signals[SIGNAL_SIGNAL_CHANGED] =
g_signal_new ("signal_changed", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstTunerChannelClass,
signal_changed),
NULL, NULL, g_cclosure_marshal_VOID__INT,
G_TYPE_NONE, 1, G_TYPE_INT);
object_klass->dispose = gst_tuner_channel_dispose;
}
static void
gst_tuner_channel_init (GstTunerChannel *channel)
{
channel->label = NULL;
channel->flags = 0;
channel->min_frequency = channel->max_frequency = 0;
channel->min_signal = channel->max_signal = 0;
}
static void
gst_tuner_channel_dispose (GObject *object)
{
GstTunerChannel *channel = GST_TUNER_CHANNEL (object);
if (channel->label)
g_free (channel->label);
if (parent_class->dispose)
parent_class->dispose (object);
}

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/* GStreamer Tuner
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* tunerchannel.h: tuner channel object design
*
* 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.
*/
#ifndef __GST_TUNER_CHANNEL_H__
#define __GST_TUNER_CHANNEL_H__
#include <gst/gst.h>
G_BEGIN_DECLS
#define GST_TYPE_TUNER_CHANNEL \
(gst_tuner_channel_get_type ())
#define GST_TUNER_CHANNEL(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_TUNER_CHANNEL, \
GstTunerChannel))
#define GST_TUNER_CHANNEL_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_TUNER_CHANNEL, \
GstTunerChannelClass))
#define GST_IS_TUNER_CHANNEL(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_TUNER_CHANNEL))
#define GST_IS_TUNER_CHANNEL_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_TUNER_CHANNEL))
typedef enum {
GST_TUNER_CHANNEL_INPUT = (1<<0),
GST_TUNER_CHANNEL_OUTPUT = (1<<1),
GST_TUNER_CHANNEL_FREQUENCY = (1<<2),
GST_TUNER_CHANNEL_AUDIO = (1<<3),
} GstTunerChannelFlags;
#define GST_TUNER_CHANNEL_HAS_FLAG(channel, flag) \
((channel)->flags & flag)
typedef struct _GstTunerChannel {
GObject parent;
gchar *label;
GstTunerChannelFlags flags;
gulong min_frequency,
max_frequency;
gint min_signal,
max_signal;
} GstTunerChannel;
typedef struct _GstTunerChannelClass {
GObjectClass parent;
/* signals */
void (*frequency_changed) (GstTunerChannel *tuner,
gulong frequency);
void (*signal_changed) (GstTunerChannel *tuner,
gint signal);
} GstTunerChannelClass;
GType gst_tuner_channel_get_type (void);
G_END_DECLS
#endif /* __GST_TUNER_CHANNEL_H__ */

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/* GStreamer Tuner
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* tunernorm.c: tuner norm object design
*
* 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 "tunernorm.h"
enum {
/* FILL ME */
LAST_SIGNAL
};
static void gst_tuner_norm_class_init (GstTunerNormClass *klass);
static void gst_tuner_norm_init (GstTunerNorm *norm);
static void gst_tuner_norm_dispose (GObject *object);
static GObjectClass *parent_class = NULL;
/*static guint signals[LAST_SIGNAL] = { 0 };*/
GType
gst_tuner_norm_get_type (void)
{
static GType gst_tuner_norm_type = 0;
if (!gst_tuner_norm_type) {
static const GTypeInfo tuner_norm_info = {
sizeof (GstTunerNormClass),
NULL,
NULL,
(GClassInitFunc) gst_tuner_norm_class_init,
NULL,
NULL,
sizeof (GstTunerNorm),
0,
(GInstanceInitFunc) gst_tuner_norm_init,
NULL
};
gst_tuner_norm_type =
g_type_register_static (G_TYPE_OBJECT,
"GstTunerNorm",
&tuner_norm_info, 0);
}
return gst_tuner_norm_type;
}
static void
gst_tuner_norm_class_init (GstTunerNormClass *klass)
{
GObjectClass *object_klass = (GObjectClass *) klass;
parent_class = g_type_class_ref (G_TYPE_OBJECT);
object_klass->dispose = gst_tuner_norm_dispose;
}
static void
gst_tuner_norm_init (GstTunerNorm *norm)
{
norm->label = NULL;
norm->fps = 0.;
}
static void
gst_tuner_norm_dispose (GObject *object)
{
GstTunerNorm *norm = GST_TUNER_NORM (object);
if (norm->label)
g_free (norm->label);
if (parent_class->dispose)
parent_class->dispose (object);
}

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/* GStreamer Tuner
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* tunernorm.h: tuner norm object design
*
* 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.
*/
#ifndef __GST_TUNER_NORM_H__
#define __GST_TUNER_NORM_H__
#include <gst/gst.h>
G_BEGIN_DECLS
#define GST_TYPE_TUNER_NORM \
(gst_tuner_norm_get_type ())
#define GST_TUNER_NORM(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_TUNER_NORM, GstTunerNorm))
#define GST_TUNER_NORM_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_TUNER_NORM, GstTunerNormClass))
#define GST_IS_TUNER_NORM(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_TUNER_NORM))
#define GST_IS_TUNER_NORM_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_TUNER_NORM))
typedef struct _GstTunerNorm {
GObject parent;
gchar *label;
gfloat fps;
} GstTunerNorm;
typedef struct _GstTunerNormClass {
GObjectClass parent;
} GstTunerNormClass;
GType gst_tuner_norm_get_type (void);
G_END_DECLS
#endif /* __GST_TUNER_NORM_H__ */

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

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/* GStreamer X-based Overlay
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* x-overlay.h: X-based overlay interface design
*
* 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.
*/
#ifndef __GST_X_OVERLAY_H__
#define __GST_X_OVERLAY_H__
#include <gst/gst.h>
#include <X11/Xlib.h>
G_BEGIN_DECLS
#define GST_TYPE_X_OVERLAY \
(gst_x_overlay_get_type ())
#define GST_X_OVERLAY(obj) \
(GST_INTERFACE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_X_OVERLAY, GstXOverlay))
#define GST_X_OVERLAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_X_OVERLAY, GstXOverlayClass))
#define GST_IS_X_OVERLAY(obj) \
(GST_INTERFACE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_X_OVERLAY))
#define GST_IS_X_OVERLAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_X_OVERLAY))
#define GST_X_OVERLAY_GET_CLASS(inst) \
(G_TYPE_INSTANCE_GET_INTERFACE ((inst), GST_TYPE_X_OVERLAY, GstXOverlayClass))
typedef struct _GstXOverlay GstXOverlay;
typedef struct _GstXOverlayClass {
GTypeInterface klass;
/* virtual functions */
void (* set_xwindow_id) (GstXOverlay *overlay,
XID xwindow_id);
} GstXOverlayClass;
GType gst_x_overlay_get_type (void);
/* virtual class function wrappers */
void gst_x_overlay_set_xwindow_id (GstXOverlay *overlay,
XID xwindow_id);
G_END_DECLS
#endif /* __GST_X_OVERLAY_H__ */

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libgstinterfacesincludedir = \
$(includedir)/gstreamer-@GST_MAJORMINOR@/gst/tuner
libgstinterfacesinclude_HEADERS = \
tuner.h \
tunernorm.h \
tunerchannel.h
lib_LTLIBRARIES = libgsttuner.la
libgsttuner_la_SOURCES = \
tuner.c \
tunernorm.c \
tunerchannel.c
libgsttuner_la_LIBADD =
libgsttuner_la_CFLAGS = $(GST_CFLAGS) $(GST_OPT_CFLAGS)
libgsttuner_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)

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/* GStreamer Tuner
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* tuner.c: tuner design virtual class function wrappers
*
* 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 "tuner.h"
static void gst_tuner_class_init (GstTunerClass *klass);
GType
gst_tuner_get_type (void)
{
static GType gst_tuner_type = 0;
if (!gst_tuner_type) {
static const GTypeInfo gst_tuner_info = {
sizeof (GstTunerClass),
(GBaseInitFunc) gst_tuner_class_init,
NULL,
NULL,
NULL,
NULL,
0,
0,
NULL,
};
gst_tuner_type = g_type_register_static (G_TYPE_INTERFACE,
"GstTuner",
&gst_tuner_info, 0);
g_type_interface_add_prerequisite (gst_tuner_type,
GST_TYPE_INTERFACE);
}
return gst_tuner_type;
}
static void
gst_tuner_class_init (GstTunerClass *klass)
{
/* default virtual functions */
klass->list_channels = NULL;
klass->set_channel = NULL;
klass->get_channel = NULL;
klass->list_norms = NULL;
klass->set_norm = NULL;
klass->get_norm = NULL;
klass->set_frequency = NULL;
klass->get_frequency = NULL;
klass->signal_strength = NULL;
}
const GList *
gst_tuner_list_channels (GstTuner *tuner)
{
GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
if (klass->list_channels) {
return klass->list_channels (tuner);
}
return NULL;
}
void
gst_tuner_set_channel (GstTuner *tuner,
GstTunerChannel *channel)
{
GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
if (klass->set_channel) {
klass->set_channel (tuner, channel);
}
}
const GstTunerChannel *
gst_tuner_get_channel (GstTuner *tuner)
{
GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
if (klass->get_channel) {
return klass->get_channel (tuner);
}
return NULL;
}
const GList *
gst_tuner_list_norms (GstTuner *tuner)
{
GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
if (klass->list_norms) {
return klass->list_norms (tuner);
}
return NULL;
}
void
gst_tuner_set_norm (GstTuner *tuner,
GstTunerNorm *norm)
{
GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
if (klass->set_norm) {
klass->set_norm (tuner, norm);
}
}
const GstTunerNorm *
gst_tuner_get_norm (GstTuner *tuner)
{
GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
if (klass->get_norm) {
return klass->get_norm (tuner);
}
return NULL;
}
void
gst_tuner_set_frequency (GstTuner *tuner,
GstTunerChannel *channel,
gulong frequency)
{
GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
g_return_if_fail (GST_TUNER_CHANNEL_HAS_FLAG (channel,
GST_TUNER_CHANNEL_FREQUENCY));
if (klass->set_frequency) {
klass->set_frequency (tuner, channel, frequency);
}
}
gulong
gst_tuner_get_frequency (GstTuner *tuner,
GstTunerChannel *channel)
{
GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
g_return_val_if_fail (GST_TUNER_CHANNEL_HAS_FLAG (channel,
GST_TUNER_CHANNEL_FREQUENCY), 0);
if (klass->get_frequency) {
return klass->get_frequency (tuner, channel);
}
return 0;
}
gint
gst_tuner_signal_strength (GstTuner *tuner,
GstTunerChannel *channel)
{
GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
g_return_val_if_fail (GST_TUNER_CHANNEL_HAS_FLAG (channel,
GST_TUNER_CHANNEL_FREQUENCY), 0);
if (klass->signal_strength) {
return klass->signal_strength (tuner, channel);
}
return 0;
}

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/* GStreamer Tuner
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* tuner.h: tuner interface design
*
* 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.
*/
#ifndef __GST_TUNER_H__
#define __GST_TUNER_H__
#include <gst/gst.h>
#include <gst/tuner/tunernorm.h>
#include <gst/tuner/tunerchannel.h>
G_BEGIN_DECLS
#define GST_TYPE_TUNER \
(gst_tuner_get_type ())
#define GST_TUNER(obj) \
(GST_INTERFACE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_TUNER, GstTuner))
#define GST_TUNER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_TUNER, GstTunerClass))
#define GST_IS_TUNER(obj) \
(GST_INTERFACE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_TUNER))
#define GST_IS_TUNER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_TUNER))
#define GST_TUNER_GET_CLASS(inst) \
(G_TYPE_INSTANCE_GET_INTERFACE ((inst), GST_TYPE_TUNER, GstTunerClass))
typedef struct _GstTuner GstTuner;
typedef struct _GstTunerClass {
GTypeInterface klass;
/* virtual functions */
const GList * (* list_channels) (GstTuner *tuner);
void (* set_channel) (GstTuner *tuner,
GstTunerChannel *channel);
const GstTunerChannel *
(* get_channel) (GstTuner *tuner);
const GList * (* list_norms) (GstTuner *tuner);
void (* set_norm) (GstTuner *tuner,
GstTunerNorm *norm);
const GstTunerNorm *
(* get_norm) (GstTuner *tuner);
void (* set_frequency) (GstTuner *tuner,
GstTunerChannel *channel,
gulong frequency);
gulong (* get_frequency) (GstTuner *tuner,
GstTunerChannel *channel);
gint (* signal_strength) (GstTuner *tuner,
GstTunerChannel *channel);
} GstTunerClass;
GType gst_tuner_get_type (void);
/* virtual class function wrappers */
const GList * gst_tuner_list_channels (GstTuner *tuner);
void gst_tuner_set_channel (GstTuner *tuner,
GstTunerChannel *channel);
const GstTunerChannel *
gst_tuner_get_channel (GstTuner *tuner);
const GList * gst_tuner_list_norms (GstTuner *tuner);
void gst_tuner_set_norm (GstTuner *tuner,
GstTunerNorm *channel);
const GstTunerNorm *
gst_tuner_get_norm (GstTuner *tuner);
void gst_tuner_set_frequency (GstTuner *tuner,
GstTunerChannel *channel,
gulong frequency);
gulong gst_tuner_get_frequency (GstTuner *tuner,
GstTunerChannel *channel);
gint gst_tuner_signal_strength (GstTuner *tuner,
GstTunerChannel *channel);
G_END_DECLS
#endif /* __GST_TUNER_H__ */

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/* GStreamer Tuner
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* tunerchannel.c: tuner channel object design
*
* 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 "tunerchannel.h"
enum {
/* FILL ME */
SIGNAL_FREQUENCY_CHANGED,
SIGNAL_SIGNAL_CHANGED,
LAST_SIGNAL
};
static void gst_tuner_channel_class_init (GstTunerChannelClass *klass);
static void gst_tuner_channel_init (GstTunerChannel *channel);
static void gst_tuner_channel_dispose (GObject *object);
static GObjectClass *parent_class = NULL;
static guint signals[LAST_SIGNAL] = { 0 };
GType
gst_tuner_channel_get_type (void)
{
static GType gst_tuner_channel_type = 0;
if (!gst_tuner_channel_type) {
static const GTypeInfo tuner_channel_info = {
sizeof (GstTunerChannelClass),
NULL,
NULL,
(GClassInitFunc) gst_tuner_channel_class_init,
NULL,
NULL,
sizeof (GstTunerChannel),
0,
(GInstanceInitFunc) gst_tuner_channel_init,
NULL
};
gst_tuner_channel_type =
g_type_register_static (G_TYPE_OBJECT,
"GstTunerChannel",
&tuner_channel_info, 0);
}
return gst_tuner_channel_type;
}
static void
gst_tuner_channel_class_init (GstTunerChannelClass *klass)
{
GObjectClass *object_klass = (GObjectClass *) klass;
parent_class = g_type_class_ref (G_TYPE_OBJECT);
signals[SIGNAL_FREQUENCY_CHANGED] =
g_signal_new ("frequency_changed", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstTunerChannelClass,
frequency_changed),
NULL, NULL, g_cclosure_marshal_VOID__ULONG,
G_TYPE_NONE, 1, G_TYPE_ULONG);
signals[SIGNAL_SIGNAL_CHANGED] =
g_signal_new ("signal_changed", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstTunerChannelClass,
signal_changed),
NULL, NULL, g_cclosure_marshal_VOID__INT,
G_TYPE_NONE, 1, G_TYPE_INT);
object_klass->dispose = gst_tuner_channel_dispose;
}
static void
gst_tuner_channel_init (GstTunerChannel *channel)
{
channel->label = NULL;
channel->flags = 0;
channel->min_frequency = channel->max_frequency = 0;
channel->min_signal = channel->max_signal = 0;
}
static void
gst_tuner_channel_dispose (GObject *object)
{
GstTunerChannel *channel = GST_TUNER_CHANNEL (object);
if (channel->label)
g_free (channel->label);
if (parent_class->dispose)
parent_class->dispose (object);
}

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/* GStreamer Tuner
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* tunerchannel.h: tuner channel object design
*
* 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.
*/
#ifndef __GST_TUNER_CHANNEL_H__
#define __GST_TUNER_CHANNEL_H__
#include <gst/gst.h>
G_BEGIN_DECLS
#define GST_TYPE_TUNER_CHANNEL \
(gst_tuner_channel_get_type ())
#define GST_TUNER_CHANNEL(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_TUNER_CHANNEL, \
GstTunerChannel))
#define GST_TUNER_CHANNEL_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_TUNER_CHANNEL, \
GstTunerChannelClass))
#define GST_IS_TUNER_CHANNEL(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_TUNER_CHANNEL))
#define GST_IS_TUNER_CHANNEL_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_TUNER_CHANNEL))
typedef enum {
GST_TUNER_CHANNEL_INPUT = (1<<0),
GST_TUNER_CHANNEL_OUTPUT = (1<<1),
GST_TUNER_CHANNEL_FREQUENCY = (1<<2),
GST_TUNER_CHANNEL_AUDIO = (1<<3),
} GstTunerChannelFlags;
#define GST_TUNER_CHANNEL_HAS_FLAG(channel, flag) \
((channel)->flags & flag)
typedef struct _GstTunerChannel {
GObject parent;
gchar *label;
GstTunerChannelFlags flags;
gulong min_frequency,
max_frequency;
gint min_signal,
max_signal;
} GstTunerChannel;
typedef struct _GstTunerChannelClass {
GObjectClass parent;
/* signals */
void (*frequency_changed) (GstTunerChannel *tuner,
gulong frequency);
void (*signal_changed) (GstTunerChannel *tuner,
gint signal);
} GstTunerChannelClass;
GType gst_tuner_channel_get_type (void);
G_END_DECLS
#endif /* __GST_TUNER_CHANNEL_H__ */

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/* GStreamer Tuner
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* tunernorm.c: tuner norm object design
*
* 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 "tunernorm.h"
enum {
/* FILL ME */
LAST_SIGNAL
};
static void gst_tuner_norm_class_init (GstTunerNormClass *klass);
static void gst_tuner_norm_init (GstTunerNorm *norm);
static void gst_tuner_norm_dispose (GObject *object);
static GObjectClass *parent_class = NULL;
/*static guint signals[LAST_SIGNAL] = { 0 };*/
GType
gst_tuner_norm_get_type (void)
{
static GType gst_tuner_norm_type = 0;
if (!gst_tuner_norm_type) {
static const GTypeInfo tuner_norm_info = {
sizeof (GstTunerNormClass),
NULL,
NULL,
(GClassInitFunc) gst_tuner_norm_class_init,
NULL,
NULL,
sizeof (GstTunerNorm),
0,
(GInstanceInitFunc) gst_tuner_norm_init,
NULL
};
gst_tuner_norm_type =
g_type_register_static (G_TYPE_OBJECT,
"GstTunerNorm",
&tuner_norm_info, 0);
}
return gst_tuner_norm_type;
}
static void
gst_tuner_norm_class_init (GstTunerNormClass *klass)
{
GObjectClass *object_klass = (GObjectClass *) klass;
parent_class = g_type_class_ref (G_TYPE_OBJECT);
object_klass->dispose = gst_tuner_norm_dispose;
}
static void
gst_tuner_norm_init (GstTunerNorm *norm)
{
norm->label = NULL;
norm->fps = 0.;
}
static void
gst_tuner_norm_dispose (GObject *object)
{
GstTunerNorm *norm = GST_TUNER_NORM (object);
if (norm->label)
g_free (norm->label);
if (parent_class->dispose)
parent_class->dispose (object);
}

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/* GStreamer Tuner
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* tunernorm.h: tuner norm object design
*
* 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.
*/
#ifndef __GST_TUNER_NORM_H__
#define __GST_TUNER_NORM_H__
#include <gst/gst.h>
G_BEGIN_DECLS
#define GST_TYPE_TUNER_NORM \
(gst_tuner_norm_get_type ())
#define GST_TUNER_NORM(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_TUNER_NORM, GstTunerNorm))
#define GST_TUNER_NORM_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_TUNER_NORM, GstTunerNormClass))
#define GST_IS_TUNER_NORM(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_TUNER_NORM))
#define GST_IS_TUNER_NORM_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_TUNER_NORM))
typedef struct _GstTunerNorm {
GObject parent;
gchar *label;
gfloat fps;
} GstTunerNorm;
typedef struct _GstTunerNormClass {
GObjectClass parent;
} GstTunerNormClass;
GType gst_tuner_norm_get_type (void);
G_END_DECLS
#endif /* __GST_TUNER_NORM_H__ */

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libgstinterfacesincludedir = \
$(includedir)/gstreamer-@GST_MAJORMINOR@/gst/xoverlay
libgstinterfacesinclude_HEADERS = xoverlay.h
lib_LTLIBRARIES = libgstxoverlay.la
libgstxoverlay_la_SOURCES = xoverlay.c
libgstxoverlay_la_LIBADD =
libgstxoverlay_la_CFLAGS = $(GST_CFLAGS) $(GST_OPT_CFLAGS)
libgstxoverlay_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)

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

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/* GStreamer X-based Overlay
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* x-overlay.h: X-based overlay interface design
*
* 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.
*/
#ifndef __GST_X_OVERLAY_H__
#define __GST_X_OVERLAY_H__
#include <gst/gst.h>
#include <X11/Xlib.h>
G_BEGIN_DECLS
#define GST_TYPE_X_OVERLAY \
(gst_x_overlay_get_type ())
#define GST_X_OVERLAY(obj) \
(GST_INTERFACE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_X_OVERLAY, GstXOverlay))
#define GST_X_OVERLAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_X_OVERLAY, GstXOverlayClass))
#define GST_IS_X_OVERLAY(obj) \
(GST_INTERFACE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_X_OVERLAY))
#define GST_IS_X_OVERLAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_X_OVERLAY))
#define GST_X_OVERLAY_GET_CLASS(inst) \
(G_TYPE_INSTANCE_GET_INTERFACE ((inst), GST_TYPE_X_OVERLAY, GstXOverlayClass))
typedef struct _GstXOverlay GstXOverlay;
typedef struct _GstXOverlayClass {
GTypeInterface klass;
/* virtual functions */
void (* set_xwindow_id) (GstXOverlay *overlay,
XID xwindow_id);
} GstXOverlayClass;
GType gst_x_overlay_get_type (void);
/* virtual class function wrappers */
void gst_x_overlay_set_xwindow_id (GstXOverlay *overlay,
XID xwindow_id);
G_END_DECLS
#endif /* __GST_X_OVERLAY_H__ */

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gst-libs/gst/xwindowlistener/Makefile.am Normal file
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librarydir = $(libdir)/gstreamer-@GST_MAJORMINOR@
library_LTLIBRARIES = libgstxwindowlistener.la
libgstxwindowlistener_la_SOURCES = xwindowlistener.c
libraryincludedir = $(includedir)/gstreamer-@GST_MAJORMINOR@/gst/xwindowlistener
libraryinclude_HEADERS = xwindowlistener.h
libgstxwindowlistener_la_CFLAGS = $(GST_CFLAGS) $(X_CFLAGS)
libgstxwindowlistener_la_LIBADD = $(GST_LIBS) $(GST_PLUGIN_LIBS) $(X_LIBS)

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gst-libs/gst/xwindowlistener/xwindowlistener.c Normal file
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/* G-Streamer X11 Window event/motion listener
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* xwindowlistener.c: implementation of the object
*
* 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 "xwindowlistener.h"
#define NUM_CLIPS 1024
static void gst_x_window_listener_class_init (GstXWindowListenerClass *klass);
static void gst_x_window_listener_init (GstXWindowListener *xwin);
static void gst_x_window_listener_dispose (GObject *object);
static void gst_xwin_start (GstXWindowListener *xwin);
static void gst_xwin_stop (GstXWindowListener *xwin);
static GObjectClass *parent_class = NULL;
GType
gst_x_window_listener_get_type (void)
{
static GType x_window_listener_type = 0;
if (!x_window_listener_type) {
static const GTypeInfo x_window_listener_info = {
sizeof (GstXWindowListenerClass),
NULL,
NULL,
(GClassInitFunc) gst_x_window_listener_class_init,
NULL,
NULL,
sizeof (GstXWindowListener),
0,
(GInstanceInitFunc) gst_x_window_listener_init,
NULL
};
x_window_listener_type =
g_type_register_static (G_TYPE_OBJECT,
"GstXWindowListener",
&x_window_listener_info, 0);
}
return x_window_listener_type;
}
static void
gst_x_window_listener_class_init (GstXWindowListenerClass *klass)
{
GObjectClass *object_klass = (GObjectClass *) klass;
parent_class = g_type_class_ref (G_TYPE_OBJECT);
object_klass->dispose = gst_x_window_listener_dispose;
}
static void
gst_x_window_listener_init (GstXWindowListener *xwin)
{
xwin->xwindow_id = 0;
xwin->display_name = NULL;
xwin->map_window_func = NULL;
xwin->set_window_func = NULL;
xwin->thread = NULL;
}
static void
gst_x_window_listener_dispose (GObject *object)
{
GstXWindowListener *xwin = GST_X_WINDOW_LISTENER (object);
/* stop overlay */
gst_x_window_listener_set_xid (xwin, 0);
if (xwin->display_name) {
g_free (xwin->display_name);
}
if (parent_class->dispose) {
parent_class->dispose (object);
}
}
GstXWindowListener *
gst_x_window_listener_new (gchar *display,
MapWindowFunc map_window_func,
SetWindowFunc set_window_func,
gpointer private_data)
{
GstXWindowListener *xwin =
g_object_new (GST_TYPE_X_WINDOW_LISTENER, NULL);
xwin->display_name = g_strdup (display);
xwin->map_window_func = map_window_func;
xwin->set_window_func = set_window_func;
xwin->private_data = private_data;
return xwin;
}
void
gst_x_window_listener_set_xid (GstXWindowListener *xwin,
XID id)
{
g_return_if_fail (xwin != NULL);
if (id == xwin->xwindow_id) {
return;
}
if (xwin->xwindow_id && xwin->thread) {
gst_xwin_stop (xwin);
}
xwin->xwindow_id = id;
if (xwin->xwindow_id &&
xwin->display_name &&
xwin->display_name[0] == ':') {
g_return_if_fail (xwin->map_window_func != NULL);
g_return_if_fail (xwin->set_window_func != NULL);
gst_xwin_start (xwin);
}
}
/*
* The following code works as follows:
* - the "client" (the one who uses this object) sets an XID
* - we add a child XWindow to this XID, and follow motion/events
* - after each event, we determine the position, size and clips
* - next, we call the per-instance virtual functions set by the client
* - and we do all this in an endless cycle
*
* Unfortunately, part of this code is inspired by XawTV, so the
* runtime license for this code as a whole will be GPL unless
* someone can rewrite this or ask permission to the original
* author (Gerd Knorr <kraxel@bytesex.org>) to let us re-license
* this piece of code to LGPL.
*/
#define DEBUG(format, args...) \
GST_DEBUG ("XWL: " format, ##args)
static void
gst_xwin_set_overlay (GstXWindowListener *xwin,
gboolean on)
{
xwin->map_window_func (xwin->private_data, on);
/* remember me */
xwin->ov_visible = on;
}
static gboolean
gst_xwin_refresh (gpointer data)
{
GstXWindowListener *xwin = GST_X_WINDOW_LISTENER (data);
Window win, tmp;
XSetWindowAttributes xswa;
XWindowAttributes attr;
g_mutex_lock (xwin->main_lock);
win = DefaultRootWindow (xwin->main_display);
XGetWindowAttributes (xwin->main_display, win, &attr);
xwin->ov_refresh_id = 0;
if (!xwin->ov_move && xwin->ov_map &&
xwin->ov_visibility == VisibilityUnobscured) {
g_mutex_unlock (xwin->main_lock);
return FALSE; /* skip */
}
if (xwin->ov_map &&
xwin->ov_visibility != VisibilityFullyObscured) {
xwin->ov_refresh = TRUE;
}
xswa.override_redirect = True;
xswa.backing_store = NotUseful;
xswa.save_under = False;
tmp = XCreateWindow (xwin->main_display,win, 0, 0,
attr.width, attr.height, 0,
CopyFromParent, InputOutput, CopyFromParent,
(CWSaveUnder | CWBackingStore| CWOverrideRedirect ),
&xswa);
XMapWindow (xwin->main_display, tmp);
XUnmapWindow (xwin->main_display, tmp);
XDestroyWindow (xwin->main_display, tmp);
xwin->ov_move = FALSE;
g_mutex_unlock (xwin->main_lock);
/* once */
return FALSE;
}
static int
x11_error_dev_null (Display *display,
XErrorEvent *event)
{
return 0;
}
#define ADD_CLIP(_x, _y, _w, _h) \
do { \
GstXWindowClip *clip = &xwin->clips[xwin->num_clips++]; \
clip->x_offset = _x; \
clip->y_offset = _y; \
clip->width = _w; \
clip->height = _h; \
clip->data = NULL; \
} while (0);
static void
gst_xwin_set_clips (GstXWindowListener *xwin)
{
Window root, rroot, parent, *kids, me;
XWindowAttributes attr;
guint numkids;
gint i;
gint x1, y1, w1, h1;
void *old_handler;
old_handler = XSetErrorHandler (x11_error_dev_null);
if (xwin->num_clips != 0)
xwin->ov_conf = TRUE;
xwin->num_clips = 0;
root = DefaultRootWindow (xwin->display);
XGetWindowAttributes (xwin->display, root, &attr);
if (xwin->x < 0)
ADD_CLIP (0, 0, -xwin->x, xwin->h);
if (xwin->y < 0)
ADD_CLIP (0, 0, xwin->w, -xwin->y);
if ((xwin->x + xwin->w) > attr.width)
ADD_CLIP (attr.width - xwin->x, 0, xwin->w, xwin->h);
if ((xwin->y + xwin->h) > attr.height)
ADD_CLIP (0, attr.height - xwin->y, xwin->w, xwin->h);
me = xwin->child;
while (1) {
XQueryTree (xwin->display, me, &rroot, &parent, &kids, &numkids);
if (numkids)
XFree (kids);
if (root == parent)
break;
me = parent;
}
XQueryTree (xwin->display, root, &rroot, &parent, &kids, &numkids);
for (i = 0; i < numkids; i++)
if (kids[i] == me)
break;
for (i++; i < numkids; i++) {
XGetWindowAttributes (xwin->display, kids[i], &attr);
if (attr.map_state != IsViewable)
continue;
x1 = attr.x - xwin->x;
y1 = attr.y - xwin->y;
w1 = attr.width + 2 * attr.border_width;
h1 = attr.height + 2 * attr.border_width;
if (((x1 + w1) < 0) || (x1 > xwin->w) ||
((y1 + h1) < 0) || (y1 > xwin->h))
continue;
if (x1 < 0)
x1 = 0;
if (y1 < 0)
y1 = 0;
ADD_CLIP (x1, y1, w1, h1);
}
XFree (kids);
if (xwin->num_clips != 0)
xwin->ov_conf = TRUE;
XSetErrorHandler (old_handler);
}
static gboolean
gst_xwin_window (GstXWindowListener *xwin)
{
if (xwin->ov_map && xwin->ov_wmmap &&
xwin->ov_visibility != VisibilityFullyObscured) {
/* visible */
if (xwin->ov_visibility == VisibilityPartiallyObscured) {
/* set clips */
gst_xwin_set_clips (xwin);
}
if (xwin->ov_conf) {
xwin->set_window_func (xwin->private_data,
xwin->x, xwin->y,
xwin->w, xwin->h,
xwin->clips, xwin->num_clips);
if (!xwin->ov_visible)
gst_xwin_set_overlay (xwin, TRUE);
g_mutex_lock (xwin->main_lock);
if (xwin->ov_refresh_id)
g_source_remove (xwin->ov_refresh_id);
xwin->ov_refresh_id =
g_timeout_add (200, (GSourceFunc) gst_xwin_refresh,
(gpointer) xwin);
xwin->ov_conf = FALSE;
g_mutex_unlock (xwin->main_lock);
}
} else {
/* not visible */
if (xwin->ov_conf && xwin->ov_visible) {
gst_xwin_set_overlay (xwin, FALSE);
g_mutex_lock (xwin->main_lock);
if (xwin->ov_refresh_id)
g_source_remove (xwin->ov_refresh_id);
xwin->ov_refresh_id =
g_timeout_add (200, (GSourceFunc) gst_xwin_refresh,
(gpointer) xwin);
xwin->ov_conf = FALSE;
g_mutex_unlock (xwin->main_lock);
}
}
xwin->ov_conf_id = 0;
/* once is enough */
return FALSE;
}
static void
gst_xwin_configure (GstXWindowListener *xwin)
{
#if 0
/* This part is disabled, because the idle task will be done
* in the main thread instead of here. */
if (!xwin->ov_conf_id)
xwin->ov_conf_id =
g_idle_add ((GSourceFunc) gst_rec_xoverlay_window,
(gpointer) xwin);
#endif
gst_xwin_window ((gpointer) xwin);
}
static void
gst_xwin_resize (GstXWindowListener *xwin)
{
Drawable drawable, parent, *kids, root;
guint numkids;
XWindowAttributes attr;
XGetWindowAttributes (xwin->display,
xwin->xwindow_id, &attr);
XMoveResizeWindow (xwin->display, xwin->child,
0, 0, attr.width, attr.height);
/* set the video window - the first clip is our own window */
xwin->x = 0;
xwin->y = 0;
xwin->w = attr.width;
xwin->h = attr.height;
drawable = xwin->child;
while (1) {
XQueryTree (xwin->display, drawable,
&root, &parent, &kids, &numkids);
if (numkids)
XFree(kids);
drawable = parent;
XGetWindowAttributes (xwin->display, drawable, &attr);
xwin->x += attr.x;
xwin->y += attr.y;
if (parent == attr.root)
break;
}
xwin->ov_conf = TRUE;
xwin->ov_move = TRUE;
gst_xwin_configure (xwin);
}
static void
gst_xwin_init_window (GstXWindowListener *xwin)
{
XWindowAttributes attr;
/* start values */
xwin->ov_conf = TRUE;
xwin->ov_map = xwin->ov_wmmap = TRUE;
xwin->ov_move = TRUE;
xwin->ov_refresh = FALSE;
g_mutex_lock (xwin->main_lock);
xwin->ov_conf_id = xwin->ov_refresh_id = 0;
g_mutex_unlock (xwin->main_lock);
xwin->ov_visibility = VisibilityFullyObscured;
/* start the memory that we'll use */
xwin->clips = g_malloc (sizeof (GstXWindowClip) * NUM_CLIPS);
xwin->num_clips = 0;
/* open connection to X server */
xwin->display = XOpenDisplay (xwin->display_name);
/* window */
XGetWindowAttributes (xwin->display,
xwin->xwindow_id, &attr);
xwin->child = XCreateSimpleWindow (xwin->display,
xwin->xwindow_id, 0, 0,
attr.width, attr.height, 0, 0, 0);
/* listen to certain X events */
XSelectInput (xwin->display, xwin->xwindow_id,
StructureNotifyMask);
XSelectInput (xwin->display, xwin->child,
VisibilityChangeMask | StructureNotifyMask);
XSelectInput (xwin->display, DefaultRootWindow (xwin->display),
VisibilityChangeMask | StructureNotifyMask |
SubstructureNotifyMask);
/* show */
XMapWindow (xwin->display, xwin->child);
gst_xwin_resize (xwin);
}
static void
gst_xwin_exit_window (GstXWindowListener *xwin)
{
/* disable overlay */
gst_xwin_set_overlay (xwin, FALSE);
/* delete idle funcs */
if (xwin->ov_conf_id != 0)
g_source_remove (xwin->ov_conf_id);
g_mutex_lock (xwin->main_lock);
if (xwin->ov_refresh_id != 0)
g_source_remove (xwin->ov_refresh_id);
g_mutex_unlock (xwin->main_lock);
/* get away from X and free mem */
XDestroyWindow (xwin->display, xwin->child);
XCloseDisplay (xwin->display);
g_free (xwin->clips);
}
static gpointer
gst_xwin_thread (gpointer data)
{
GstXWindowListener *xwin = GST_X_WINDOW_LISTENER (data);
XEvent event;
/* Hi, I'm GStreamer. What's your name? */
gst_xwin_init_window (xwin);
while (xwin->cycle) {
XNextEvent (xwin->display, &event);
if (!xwin->cycle)
break;
if ((event.type == ConfigureNotify &&
event.xconfigure.window == xwin->xwindow_id) ||
(event.type == MapNotify &&
event.xmap.window == xwin->xwindow_id) ||
(event.type == UnmapNotify &&
event.xunmap.window == xwin->xwindow_id)) {
/* the 'parent' window, i.e. the widget provided by client */
switch (event.type) {
case MapNotify:
xwin->ov_map = TRUE;
xwin->ov_conf = TRUE;
gst_xwin_configure (xwin);
break;
case UnmapNotify:
xwin->ov_map = FALSE;
xwin->ov_conf = TRUE;
gst_xwin_configure (xwin);
break;
case ConfigureNotify:
gst_xwin_resize (xwin);
break;
default:
/* nothing */
break;
}
} else if (event.xany.window == xwin->child) {
/* our own private window */
switch (event.type) {
case Expose:
if (!event.xexpose.count) {
if (xwin->ov_refresh) {
xwin->ov_refresh = FALSE;
} else {
xwin->ov_conf = TRUE;
gst_xwin_configure (xwin);
}
}
break;
case VisibilityNotify:
xwin->ov_visibility = event.xvisibility.state;
if (xwin->ov_refresh) {
if (event.xvisibility.state != VisibilityFullyObscured)
xwin->ov_refresh = FALSE;
} else {
xwin->ov_conf = TRUE;
gst_xwin_configure (xwin);
}
break;
default:
/* nothing */
break;
}
} else {
/* root window */
switch (event.type) {
case MapNotify:
case UnmapNotify:
/* are we still visible? */
if (!xwin->ov_refresh) {
XWindowAttributes attr;
gboolean on;
XGetWindowAttributes (xwin->display,
xwin->xwindow_id, &attr);
on = (attr.map_state == IsViewable);
xwin->ov_wmmap = on;
xwin->ov_conf = TRUE;
gst_xwin_configure (xwin);
}
break;
case ConfigureNotify:
if (!xwin->ov_refresh) {
gst_xwin_resize (xwin);
}
break;
default:
/* nothing */
break;
}
}
}
/* Nice to have met you, see you later */
gst_xwin_exit_window (xwin);
g_thread_exit (NULL);
return NULL;
}
static void
gst_xwin_start (GstXWindowListener *xwin)
{
DEBUG ("Starting XWindow listener");
xwin->cycle = TRUE;
/* we use this main_display for two things: first of all,
* the window needs to be 'refreshed' to remove artifacts
* after every move. Secondly, we use this to 'unhang' the
* event handler after we've stopped it */
xwin->main_lock = g_mutex_new ();
xwin->main_display = XOpenDisplay (xwin->display_name);
xwin->thread = g_thread_create (gst_xwin_thread,
(gpointer) xwin,
TRUE, NULL);
DEBUG ("Started X-overlay");
}
static void
gst_xwin_stop (GstXWindowListener *xwin)
{
DEBUG ("Stopping XWindow listener");
xwin->cycle = FALSE;
/* now, the event loop will hang. To prevent this from hanging
* our app, app, we re-do our refresh hack. Oh man, this is
* ugly. But it works. :). */
g_mutex_lock (xwin->main_lock);
if (xwin->ov_refresh_id)
g_source_remove (xwin->ov_refresh_id);
g_mutex_unlock (xwin->main_lock);
gst_xwin_refresh ((gpointer) xwin);
g_thread_join (xwin->thread);
XCloseDisplay (xwin->main_display);
g_mutex_free (xwin->main_lock);
DEBUG ("Stopped X-overlay");
}
/*
* End of code inspired by XawTV.
*/
static gboolean
plugin_init (GModule *module,
GstPlugin *plugin)
{
gst_plugin_set_longname (plugin,
"X11-based XWindow event/motion listener");
return TRUE;
}
GstPluginDesc plugin_desc = {
GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"xwindowlistener",
plugin_init
};

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/* G-Streamer X11 Window event/motion listener
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* xwindowlistener.h: object definition
*
* 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.
*/
#ifndef __X_WINDOW_LISTENER_H__
#define __X_WINDOW_LISTENER_H__
#include <gst/gst.h>
#include <X11/Xlib.h>
G_BEGIN_DECLS
#define GST_TYPE_X_WINDOW_LISTENER \
(gst_x_window_listener_get_type())
#define GST_X_WINDOW_LISTENER(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_X_WINDOW_LISTENER, \
GstXWindowListener))
#define GST_X_WINDOW_LISTENER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_X_WINDOW_LISTENER, \
GstXWindowListenerClass))
#define GST_IS_X_WINDOW_LISTENER(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_X_WINDOW_LISTENER))
#define GST_IS_X_WINDOW_LISTENER_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_X_WINDOW_LISTENER))
typedef struct _GstXWindowListener GstXWindowListener;
typedef struct _GstXWindowListenerClass GstXWindowListenerClass;
typedef struct _GstXWindowClip GstXWindowClip;
typedef void (* MapWindowFunc) (gpointer your_data,
gboolean visible);
typedef void (* SetWindowFunc) (gpointer your_data,
gint x, gint y,
gint w, gint h,
GstXWindowClip *clips,
gint num_clips);
struct _GstXWindowClip {
gint32 x_offset,
y_offset,
width,
height;
gpointer data;
};
struct _GstXWindowListener {
GObject parent;
/* "per-instance virtual functions" */
MapWindowFunc map_window_func;
SetWindowFunc set_window_func;
/* private data with which we call the virtual functions */
gpointer private_data;
/* general information of what we're doing */
gchar *display_name;
XID xwindow_id;
/* one extra... */
Display *main_display;
GMutex *main_lock;
/* oh my g*d, this is going to be so horribly ugly */
GThread *thread;
gboolean cycle;
/* the overlay window + own thread */
Display *display;
Drawable child;
gboolean ov_conf,
ov_map,
ov_visible,
ov_refresh,
ov_move,
ov_wmmap;
gint ov_visibility;
guint ov_conf_id,
ov_refresh_id;
gint x, y, w, h;
GstXWindowClip *clips;
gint num_clips;
};
struct _GstXWindowListenerClass {
GObjectClass parent;
};
GType gst_x_window_listener_get_type (void);
GstXWindowListener *
gst_x_window_listener_new (gchar *display,
MapWindowFunc map_window_func,
SetWindowFunc set_window_func,
gpointer private_data);
void gst_x_window_listener_set_xid (GstXWindowListener *xwin,
XID id);
G_END_DECLS
#endif /* __X_WINDOW_LISTENER_H__ */

151
sys/v4l/gstv4lcolorbalance.c Normal file
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@ -0,0 +1,151 @@
/* 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)
{
/* 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;
}

58
sys/v4l/gstv4lcolorbalance.h Normal file
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@ -0,0 +1,58 @@
/* G-Streamer generic V4L element - Color Balance interface implementation
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* gstv4lcolorbalance.h: 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.
*/
#ifndef __GST_V4L_COLOR_BALANCE_H__
#define __GST_V4L_COLOR_BALANCE_H__
#include <gst/gst.h>
#include <gst/colorbalance/colorbalance.h>
#include "v4l_calls.h"
G_BEGIN_DECLS
#define GST_TYPE_V4L_COLOR_BALANCE_CHANNEL \
(gst_v4l_color_balance_channel_get_type ())
#define GST_V4L_COLOR_BALANCE_CHANNEL(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_V4L_COLOR_BALANCE_CHANNEL, \
GstV4lColorBalanceChannel))
#define GST_V4L_COLOR_BALANCE_CHANNEL_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_V4L_COLOR_BALANCE_CHANNEL, \
GstV4lColorBalanceChannelClass))
#define GST_IS_V4L_COLOR_BALANCE_CHANNEL(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_V4L_COLOR_BALANCE_CHANNEL))
#define GST_IS_V4L_COLOR_BALANCE_CHANNEL_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_V4L_COLOR_BALANCE_CHANNEL))
typedef struct _GstV4lColorBalanceChannel {
GstColorBalanceChannel parent;
GstV4lPictureType index;
} GstV4lColorBalanceChannel;
typedef struct _GstV4lColorBalanceChannelClass {
GstColorBalanceChannelClass parent;
} GstV4lColorBalanceChannelClass;
GType gst_v4l_color_balance_channel_get_type (void);
void gst_v4l_color_balance_interface_init (GstColorBalanceClass *klass);
#endif /* __GST_V4L_COLOR_BALANCE_H__ */

3
sys/v4l/gstv4lelement-marshal.list
View file

@ -1,3 +0,0 @@
BOOLEAN:INT,INT,INT,INT,POINTER,INT
BOOLEAN:STRING,POINTER
BOOLEAN:STRING,INT

504
sys/v4l/gstv4lelement.c
View file

@ -18,20 +18,19 @@
*/
#ifdef HAVE_CONFIG_H
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <config.h>
#endif
#include <string.h>
#include "v4l_calls.h"
#include "gstv4lelement-marshal.h"
#include "gstv4ltuner.h"
#include "gstv4lxoverlay.h"
#include "gstv4lcolorbalance.h"
/* elementfactory information */
static GstElementDetails gst_v4lelement_details = {
"Generic video4linux Element",
"None/Video",
"Generic/Video",
"LGPL",
"Generic plugin for handling common video4linux calls",
VERSION,
@ -44,52 +43,88 @@ enum {
/* FILL ME */
SIGNAL_OPEN,
SIGNAL_CLOSE,
SIGNAL_SET_VIDEOWINDOW,
SIGNAL_GET_ATTRIBUTE,
SIGNAL_SET_ATTRIBUTE,
LAST_SIGNAL
};
enum {
ARG_0,
ARG_CHANNEL,
ARG_CHANNEL_NAMES,
ARG_NORM,
ARG_NORM_NAMES,
ARG_HAS_TUNER,
ARG_FREQUENCY,
ARG_HAS_AUDIO,
ARG_ATTRIBUTES,
ARG_DEVICE,
ARG_DEVICE_NAME,
ARG_DEVICE_IS_CAPTURE,
ARG_DEVICE_IS_OVERLAY,
ARG_DEVICE_IS_MJPEG_CAPTURE,
ARG_DEVICE_IS_MJPEG_PLAYBACK,
ARG_DEVICE_IS_MPEG_CAPTURE,
ARG_DEVICE_IS_MPEG_PLAYBACK,
ARG_DISPLAY,
ARG_DO_OVERLAY,
ARG_SIGNAL,
ARG_FLAGS,
};
static void gst_v4lelement_class_init (GstV4lElementClass *klass);
static void gst_v4lelement_init (GstV4lElement *v4lelement);
static void gst_v4lelement_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gst_v4lelement_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static GstElementStateReturn gst_v4lelement_change_state (GstElement *element);
static void gst_v4lelement_class_init (GstV4lElementClass *klass);
static void gst_v4lelement_init (GstV4lElement *v4lelement);
static void gst_v4lelement_dispose (GObject *object);
static void gst_v4lelement_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gst_v4lelement_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static GstElementStateReturn
gst_v4lelement_change_state (GstElement *element);
static GstElementClass *parent_class = NULL;
static guint gst_v4lelement_signals[LAST_SIGNAL] = { 0 };
static gboolean
gst_v4l_iface_supported (GstInterface *iface,
GType iface_type)
{
GstV4lElement *v4lelement = GST_V4LELEMENT (iface);
g_assert (iface_type == GST_TYPE_TUNER ||
iface_type == GST_TYPE_X_OVERLAY ||
iface_type == GST_TYPE_COLOR_BALANCE);
if (v4lelement->video_fd == -1)
return FALSE;
if (iface_type == GST_TYPE_X_OVERLAY &&
!GST_V4L_IS_OVERLAY(v4lelement))
return FALSE;
return TRUE;
}
static void
gst_v4l_interface_init (GstInterfaceClass *klass)
{
/* default virtual functions */
klass->supported = gst_v4l_iface_supported;
}
#define GST_TYPE_V4L_DEVICE_FLAGS (gst_v4l_device_get_type ())
GType
gst_v4l_device_get_type (void)
{
static GType v4l_device_type = 0;
if (v4l_device_type == 0) {
static const GFlagsValue values[] = {
{ VID_TYPE_CAPTURE, "CAPTURE", "Device can capture" },
{ VID_TYPE_TUNER, "TUNER", "Device has a tuner" },
{ VID_TYPE_OVERLAY, "OVERLAY", "Device can do overlay" },
{ VID_TYPE_MPEG_DECODER, "MPEG_DECODER", "Device can decode MPEG" },
{ VID_TYPE_MPEG_ENCODER, "MPEG_ENCODER", "Device can encode MPEG" },
{ VID_TYPE_MJPEG_DECODER, "MJPEG_DECODER", "Device can decode MJPEG" },
{ VID_TYPE_MJPEG_ENCODER, "MJPEG_ENCODER", "Device can encode MJPEG" },
{ 0x10000, "AUDIO", "Device handles audio" },
{ 0, NULL, NULL }
};
v4l_device_type = g_flags_register_static ("GstV4lDeviceTypeFlags",
values);
}
return v4l_device_type;
}
GType
gst_v4lelement_get_type (void)
@ -109,72 +144,49 @@ gst_v4lelement_get_type (void)
(GInstanceInitFunc)gst_v4lelement_init,
NULL
};
v4lelement_type = g_type_register_static(GST_TYPE_ELEMENT, "GstV4lElement", &v4lelement_info, 0);
static const GInterfaceInfo v4liface_info = {
(GInterfaceInitFunc) gst_v4l_interface_init,
NULL,
NULL,
};
static const GInterfaceInfo v4l_tuner_info = {
(GInterfaceInitFunc) gst_v4l_tuner_interface_init,
NULL,
NULL,
};
static const GInterfaceInfo v4l_xoverlay_info = {
(GInterfaceInitFunc) gst_v4l_xoverlay_interface_init,
NULL,
NULL,
};
static const GInterfaceInfo v4l_colorbalance_info = {
(GInterfaceInitFunc) gst_v4l_color_balance_interface_init,
NULL,
NULL,
};
v4lelement_type = g_type_register_static(GST_TYPE_ELEMENT,
"GstV4lElement",
&v4lelement_info, 0);
g_type_add_interface_static (v4lelement_type,
GST_TYPE_INTERFACE,
&v4liface_info);
g_type_add_interface_static (v4lelement_type,
GST_TYPE_TUNER,
&v4l_tuner_info);
g_type_add_interface_static (v4lelement_type,
GST_TYPE_X_OVERLAY,
&v4l_xoverlay_info);
g_type_add_interface_static (v4lelement_type,
GST_TYPE_COLOR_BALANCE,
&v4l_colorbalance_info);
}
return v4lelement_type;
}
static gboolean
gst_v4l_get_attribute (GstElement *element,
const gchar *name,
int *value)
{
int n;
GstV4lElement *v4lelement;
g_return_val_if_fail(element != NULL && name != NULL && value != NULL, FALSE);
g_return_val_if_fail(GST_IS_V4LELEMENT(element), FALSE);
v4lelement = GST_V4LELEMENT(element);
for (n=0;picture_name[n]!=NULL;n++)
{
if (!strcmp(picture_name[n], name))
return gst_v4l_get_picture(v4lelement, n, value);
}
for (n=0;audio_name[n]!=NULL;n++)
{
if (!strcmp(audio_name[n], name))
return gst_v4l_get_audio(v4lelement, n, value);
}
gst_element_error(element, "Unknown attribute %s", name);
return FALSE;
}
static gboolean
gst_v4l_set_attribute (GstElement *element,
const gchar *name,
const int value)
{
int n;
GstV4lElement *v4lelement;
g_return_val_if_fail(element != NULL && name != NULL, FALSE);
g_return_val_if_fail(GST_IS_V4LELEMENT(element), FALSE);
v4lelement = GST_V4LELEMENT(element);
for (n=0;picture_name[n]!=NULL;n++)
{
if (!strcmp(picture_name[n], name))
return gst_v4l_set_picture(v4lelement, n, value);
}
for (n=0;audio_name[n]!=NULL;n++)
{
if (!strcmp(audio_name[n], name))
return gst_v4l_set_audio(v4lelement, n, value);
}
gst_element_error(element, "Unknown attribute %s", name);
return FALSE;
}
static void
gst_v4lelement_class_init (GstV4lElementClass *klass)
{
@ -186,98 +198,15 @@ gst_v4lelement_class_init (GstV4lElementClass *klass)
parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_CHANNEL,
g_param_spec_int("channel","channel","channel",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_CHANNEL_NAMES,
g_param_spec_pointer("channel_names","channel_names","channel_names",
G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_NORM,
g_param_spec_int("norm","norm","norm",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_NORM_NAMES,
g_param_spec_pointer("norm_names","norm_names","norm_names",
G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_HAS_TUNER,
g_param_spec_boolean("has_tuner","has_tuner","has_tuner",
0,G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FREQUENCY,
g_param_spec_ulong("frequency","frequency","frequency",
0,G_MAXULONG,0,G_PARAM_READWRITE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_SIGNAL,
g_param_spec_uint("signal","signal","signal",
0,65535,0,G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_HAS_AUDIO,
g_param_spec_boolean("has_audio","has_audio","has_audio",
0,G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DEVICE,
g_param_spec_string("device","device","device",
NULL, G_PARAM_READWRITE));
g_param_spec_string("device","Device","Device location",
NULL, G_PARAM_READWRITE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DEVICE_NAME,
g_param_spec_string("device_name","device_name","device_name",
NULL, G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DEVICE_IS_CAPTURE,
g_param_spec_boolean("can_capture","can_capture","can_capture",
0,G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DEVICE_IS_OVERLAY,
g_param_spec_boolean("has_overlay","has_overlay","has_overlay",
0,G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DEVICE_IS_MJPEG_CAPTURE,
g_param_spec_boolean("can_capture_mjpeg","can_capture_mjpeg","can_capture_mjpeg",
0,G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DEVICE_IS_MJPEG_PLAYBACK,
g_param_spec_boolean("can_playback_mjpeg","can_playback_mjpeg","can_playback_mjpeg",
0,G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DEVICE_IS_MPEG_CAPTURE,
g_param_spec_boolean("can_capture_mpeg","can_capture_mpeg","can_capture_mpeg",
0,G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DEVICE_IS_MPEG_PLAYBACK,
g_param_spec_boolean("can_playback_mpeg","can_playback_mpeg","can_playback_mpeg",
0,G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DISPLAY,
g_param_spec_string("display","display","display",
NULL, G_PARAM_WRITABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DO_OVERLAY,
g_param_spec_boolean("do_overlay","do_overlay","do_overlay",
0,G_PARAM_WRITABLE));
/* actions */
gst_v4lelement_signals[SIGNAL_SET_VIDEOWINDOW] =
g_signal_new ("set_videowindow",
G_TYPE_FROM_CLASS(klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET(GstV4lElementClass, set_videowindow),
NULL, NULL,
gstv4l_cclosure_marshal_BOOLEAN__INT_INT_INT_INT_POINTER_INT,
G_TYPE_BOOLEAN, 6,
G_TYPE_INT, G_TYPE_INT, G_TYPE_INT, G_TYPE_INT,
G_TYPE_POINTER, G_TYPE_INT);
klass->set_videowindow = gst_v4l_set_window;
gst_v4lelement_signals[SIGNAL_GET_ATTRIBUTE] =
g_signal_new ("get_attribute",
G_TYPE_FROM_CLASS(klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET(GstV4lElementClass, get_attribute),
NULL, NULL,
gstv4l_cclosure_marshal_BOOLEAN__STRING_POINTER,
G_TYPE_BOOLEAN, 2, G_TYPE_STRING, G_TYPE_POINTER);
klass->get_attribute = gst_v4l_get_attribute;
gst_v4lelement_signals[SIGNAL_SET_ATTRIBUTE] =
g_signal_new ("set_attribute",
G_TYPE_FROM_CLASS(klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET(GstV4lElementClass, set_attribute),
NULL, NULL,
gstv4l_cclosure_marshal_BOOLEAN__STRING_INT,
G_TYPE_BOOLEAN, 2, G_TYPE_STRING, G_TYPE_INT);
klass->set_attribute = gst_v4l_set_attribute;
g_param_spec_string("device_name","Device name","Name of the device",
NULL, G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FLAGS,
g_param_spec_flags("flags","Flags","Device type flags",
GST_TYPE_V4L_DEVICE_FLAGS, 0,G_PARAM_READABLE));
/* signals */
gst_v4lelement_signals[SIGNAL_OPEN] =
@ -295,6 +224,8 @@ gst_v4lelement_class_init (GstV4lElementClass *klass)
gobject_class->get_property = gst_v4lelement_get_property;
gstelement_class->change_state = gst_v4lelement_change_state;
gobject_class->dispose = gst_v4lelement_dispose;
}
@ -304,17 +235,34 @@ gst_v4lelement_init (GstV4lElement *v4lelement)
/* some default values */
v4lelement->video_fd = -1;
v4lelement->buffer = NULL;
v4lelement->videodev = NULL;
v4lelement->display = NULL;
v4lelement->videodev = g_strdup ("/dev/video");
v4lelement->display = g_strdup(g_getenv("DISPLAY"));;
v4lelement->norm = -1;
v4lelement->channel = -1; /* the first channel */
v4lelement->norms = NULL;
v4lelement->channels = NULL;
v4lelement->colors = NULL;
v4lelement->frequency = 0;
v4lelement->overlay = gst_v4l_xoverlay_new (v4lelement);
}
v4lelement->norm_names = NULL;
v4lelement->input_names = NULL;
v4lelement->control_specs = NULL;
static void
gst_v4lelement_dispose (GObject *object)
{
GstV4lElement *v4lelement = GST_V4LELEMENT (object);
gst_v4l_xoverlay_free (v4lelement);
if (v4lelement->display) {
g_free (v4lelement->display);
}
if (v4lelement->videodev) {
g_free (v4lelement->videodev);
}
if (((GObjectClass *) parent_class)->dispose)
((GObjectClass *) parent_class)->dispose (object);
}
@ -332,49 +280,11 @@ gst_v4lelement_set_property (GObject *object,
switch (prop_id)
{
case ARG_CHANNEL:
v4lelement->channel = g_value_get_int(value);
if (GST_V4L_IS_OPEN(v4lelement) && !GST_V4L_IS_ACTIVE(v4lelement))
{
if (v4lelement->norm >= VIDEO_MODE_PAL &&
v4lelement->norm < VIDEO_MODE_AUTO &&
v4lelement->channel >= 0)
if (!gst_v4l_set_chan_norm(v4lelement, v4lelement->channel, v4lelement->norm))
return;
}
break;
case ARG_NORM:
v4lelement->norm = g_value_get_int(value);
if (GST_V4L_IS_OPEN(v4lelement) && !GST_V4L_IS_ACTIVE(v4lelement))
{
if (v4lelement->norm >= VIDEO_MODE_PAL &&
v4lelement->norm < VIDEO_MODE_AUTO &&
v4lelement->channel >= 0)
if (!gst_v4l_set_chan_norm(v4lelement, v4lelement->channel, v4lelement->norm))
return;
}
break;
case ARG_FREQUENCY:
v4lelement->frequency = g_value_get_ulong(value);
if (gst_v4l_has_tuner(v4lelement)) {
if (!gst_v4l_set_frequency(v4lelement, v4lelement->frequency)){
return;
}
}
break;
case ARG_DEVICE:
if (v4lelement->videodev)
g_free(v4lelement->videodev);
v4lelement->videodev = g_strdup(g_value_get_string(value));
break;
case ARG_DO_OVERLAY:
if (GST_V4L_IS_OPEN(v4lelement))
gst_v4l_enable_overlay(v4lelement, g_value_get_boolean(value));
break;
case ARG_DISPLAY:
if (v4lelement->display) g_free(v4lelement->display);
v4lelement->display = g_strdup(g_value_get_string(value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -389,9 +299,6 @@ gst_v4lelement_get_property (GObject *object,
GParamSpec *pspec)
{
GstV4lElement *v4lelement;
gint temp_i = 0;
gulong temp_ul = 0;
GList *list = NULL;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail(GST_IS_V4LELEMENT(object));
@ -399,89 +306,26 @@ gst_v4lelement_get_property (GObject *object,
switch (prop_id)
{
case ARG_CHANNEL:
if (GST_V4L_IS_OPEN(v4lelement))
gst_v4l_get_chan_norm(v4lelement, &temp_i, NULL);
g_value_set_int(value, temp_i);
break;
case ARG_CHANNEL_NAMES:
if (GST_V4L_IS_OPEN(v4lelement))
list = gst_v4l_get_chan_names(v4lelement);
g_value_set_pointer(value, (gpointer)list);
break;
case ARG_NORM:
if (GST_V4L_IS_OPEN(v4lelement))
gst_v4l_get_chan_norm(v4lelement, NULL, &temp_i);
g_value_set_int(value, temp_i);
break;
case ARG_NORM_NAMES:
for (temp_i=0;norm_name[temp_i]!=NULL;temp_i++)
list = g_list_append(list, (gpointer)norm_name[temp_i]);
g_value_set_pointer(value, (gpointer)list);
break;
case ARG_HAS_TUNER:
g_value_set_boolean(value, FALSE);
if (GST_V4L_IS_OPEN(v4lelement))
if (gst_v4l_has_tuner(v4lelement))
g_value_set_boolean(value, TRUE);
break;
case ARG_FREQUENCY:
if (GST_V4L_IS_OPEN(v4lelement))
if (gst_v4l_has_tuner(v4lelement))
gst_v4l_get_frequency(v4lelement, &temp_ul);
g_value_set_ulong(value, temp_ul);
break;
case ARG_SIGNAL:
if (GST_V4L_IS_OPEN(v4lelement))
if (gst_v4l_has_tuner(v4lelement))
gst_v4l_get_signal(v4lelement, &temp_i);
g_value_set_uint(value, temp_i);
break;
case ARG_HAS_AUDIO:
g_value_set_boolean(value, FALSE);
if (GST_V4L_IS_OPEN(v4lelement))
if (gst_v4l_has_audio(v4lelement))
g_value_set_boolean(value, TRUE);
break;
case ARG_DEVICE:
g_value_set_string(value, v4lelement->videodev?v4lelement->videodev:"/dev/video");
g_value_set_string(value, v4lelement->videodev);
break;
case ARG_DEVICE_NAME:
case ARG_DEVICE_NAME: {
gchar *new = NULL;
if (GST_V4L_IS_OPEN(v4lelement))
g_value_set_string(value, v4lelement->vcap.name);
else
g_value_set_string(value, "None");
new = v4lelement->vcap.name;
g_value_set_string(value, new);
break;
case ARG_DEVICE_IS_CAPTURE:
g_value_set_boolean(value, FALSE);
if (GST_V4L_IS_OPEN(v4lelement))
g_value_set_boolean(value, v4lelement->vcap.type & VID_TYPE_CAPTURE);
break;
case ARG_DEVICE_IS_OVERLAY:
g_value_set_boolean(value, FALSE);
if (GST_V4L_IS_OPEN(v4lelement))
g_value_set_boolean(value, v4lelement->vcap.type & VID_TYPE_OVERLAY);
break;
case ARG_DEVICE_IS_MJPEG_CAPTURE:
g_value_set_boolean(value, FALSE);
if (GST_V4L_IS_OPEN(v4lelement))
g_value_set_boolean(value, v4lelement->vcap.type & VID_TYPE_MJPEG_ENCODER);
break;
case ARG_DEVICE_IS_MJPEG_PLAYBACK:
g_value_set_boolean(value, FALSE);
if (GST_V4L_IS_OPEN(v4lelement))
g_value_set_boolean(value, v4lelement->vcap.type & VID_TYPE_MJPEG_DECODER);
break;
case ARG_DEVICE_IS_MPEG_CAPTURE:
g_value_set_boolean(value, FALSE);
if (GST_V4L_IS_OPEN(v4lelement))
g_value_set_boolean(value, v4lelement->vcap.type & VID_TYPE_MPEG_ENCODER);
break;
case ARG_DEVICE_IS_MPEG_PLAYBACK:
g_value_set_boolean(value, FALSE);
if (GST_V4L_IS_OPEN(v4lelement))
g_value_set_boolean(value, v4lelement->vcap.type & VID_TYPE_MPEG_DECODER);
}
case ARG_FLAGS: {
guint flags = 0;
if (GST_V4L_IS_OPEN(v4lelement)) {
flags |= v4lelement->vcap.type & 0x3C0B;
if (v4lelement->vcap.audios)
flags |= 0x10000;
}
g_value_set_flags(value, flags);
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -504,38 +348,21 @@ gst_v4lelement_change_state (GstElement *element)
switch (GST_STATE_TRANSITION(element))
{
case GST_STATE_NULL_TO_READY:
{
if (v4lelement->display)
gst_v4l_set_overlay(v4lelement, v4lelement->display);
gst_v4l_set_overlay(v4lelement);
if (!gst_v4l_open(v4lelement))
return GST_STATE_FAILURE;
/* now, sync options */
if (v4lelement->norm >= VIDEO_MODE_PAL &&
v4lelement->norm < VIDEO_MODE_AUTO &&
v4lelement->channel >= 0)
{
if (!gst_v4l_set_chan_norm(v4lelement, v4lelement->channel,
v4lelement->norm)) {
gst_v4l_close(v4lelement);
return GST_STATE_FAILURE;
}
}
if (v4lelement->frequency > 0 && gst_v4l_has_tuner(v4lelement))
{
if (!gst_v4l_set_frequency(v4lelement, v4lelement->frequency)) {
gst_v4l_close(v4lelement);
return GST_STATE_FAILURE;
}
}
gst_v4l_xoverlay_open (v4lelement);
g_signal_emit(G_OBJECT(v4lelement),
gst_v4lelement_signals[SIGNAL_OPEN], 0,
v4lelement->videodev);
}
break;
case GST_STATE_READY_TO_NULL:
gst_v4l_xoverlay_close (v4lelement);
if (!gst_v4l_close(v4lelement))
return GST_STATE_FAILURE;
@ -557,6 +384,11 @@ gst_v4lelement_factory_init (GstPlugin *plugin)
{
GstElementFactory *factory;
/* actually, we can survive without it, but I'll create
* that handling later on. */
if (!gst_library_load ("xwindowlistener"))
return FALSE;
/* create an elementfactory for the v4lelement */
factory = gst_element_factory_new("v4lelement", GST_TYPE_V4LELEMENT,
&gst_v4lelement_details);

25
sys/v4l/gstv4lelement.h
View file

@ -21,6 +21,7 @@
#define __GST_V4LELEMENT_H__
#include <gst/gst.h>
#include <gst/xwindowlistener/xwindowlistener.h>
/* Because of some really cool feature in video4linux1, also known as
* 'not including sys/types.h and sys/time.h', we had to include it
@ -56,10 +57,6 @@ extern "C" {
typedef struct _GstV4lElement GstV4lElement;
typedef struct _GstV4lElementClass GstV4lElementClass;
typedef struct _GstV4lRect {
gint x, y, w, h;
} GstV4lRect;
struct _GstV4lElement {
GstElement element;
@ -79,14 +76,15 @@ struct _GstV4lElement {
struct video_channel vchan;
/* lists... */
GList *control_specs;
GList *norm_names;
GList *input_names;
GList *colors;
GList *norms;
GList *channels;
/* X-overlay */
GstXWindowListener *overlay;
XID xwindow_id;
/* caching values */
gint channel;
gint norm;
gulong frequency;
gchar *display;
};
@ -100,13 +98,6 @@ struct _GstV4lElementClass {
const gchar *device);
/* actions */
gboolean (*set_videowindow) (GstElement *element,
gint x,
gint y,
gint w,
gint h,
struct video_clip *clips,
gint num_clips);
gboolean (*get_attribute) (GstElement *element,
const gchar *attr_name,
int *value);

12
sys/v4l/gstv4lmjpegsink.c
View file

@ -225,7 +225,7 @@ gst_v4lmjpegsink_sinkconnect (GstPad *pad,
if (!gst_v4lmjpegsink_set_playback(v4lmjpegsink,
v4lmjpegsink->width, v4lmjpegsink->height,
v4lmjpegsink->x_offset, v4lmjpegsink->y_offset,
GST_V4LELEMENT(v4lmjpegsink)->norm, 0)) /* TODO: interlacing */
GST_V4LELEMENT(v4lmjpegsink)->vchan.norm, 0)) /* TODO: interlacing */
continue;
/* set buffer info */
@ -454,16 +454,6 @@ gst_v4lmjpegsink_change_state (GstElement *element)
parent_value = GST_STATE_FAILURE;
}
if (GST_STATE_TRANSITION(element) == GST_STATE_NULL_TO_READY)
{
if ((GST_V4LELEMENT(v4lmjpegsink)->norm >= VIDEO_MODE_PAL ||
GST_V4LELEMENT(v4lmjpegsink)->norm < VIDEO_MODE_AUTO) ||
GST_V4LELEMENT(v4lmjpegsink)->channel < 0)
if (!gst_v4l_set_chan_norm(GST_V4LELEMENT(v4lmjpegsink),
0, GST_V4LELEMENT(v4lmjpegsink)->norm))
return GST_STATE_FAILURE;
}
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return parent_value;

34
sys/v4l/gstv4lmjpegsrc.c
View file

@ -710,7 +710,6 @@ static GstElementStateReturn
gst_v4lmjpegsrc_change_state (GstElement *element)
{
GstV4lMjpegSrc *v4lmjpegsrc;
GstElementStateReturn parent_value;
GTimeVal time;
g_return_val_if_fail(GST_IS_V4LMJPEGSRC(element), GST_STATE_FAILURE);
@ -750,39 +749,8 @@ gst_v4lmjpegsrc_change_state (GstElement *element)
break;
}
if (GST_ELEMENT_CLASS (parent_class)->change_state) {
parent_value = GST_ELEMENT_CLASS (parent_class)->change_state (element);
} else {
parent_value = GST_STATE_FAILURE;
}
if (GST_STATE_TRANSITION(element) == GST_STATE_NULL_TO_READY)
{
/* do autodetection if no input/norm is selected yet */
if ((GST_V4LELEMENT(v4lmjpegsrc)->norm < VIDEO_MODE_PAL ||
GST_V4LELEMENT(v4lmjpegsrc)->norm == VIDEO_MODE_AUTO) ||
(GST_V4LELEMENT(v4lmjpegsrc)->channel < 0 ||
GST_V4LELEMENT(v4lmjpegsrc)->channel == V4L_MJPEG_INPUT_AUTO))
{
gint norm, input;
if (GST_V4LELEMENT(v4lmjpegsrc)->norm < 0)
norm = VIDEO_MODE_AUTO;
else
norm = GST_V4LELEMENT(v4lmjpegsrc)->norm;
if (GST_V4LELEMENT(v4lmjpegsrc)->channel < 0)
input = V4L_MJPEG_INPUT_AUTO;
else
input = GST_V4LELEMENT(v4lmjpegsrc)->channel;
if (!gst_v4lmjpegsrc_set_input_norm(v4lmjpegsrc, input, norm))
return GST_STATE_FAILURE;
}
}
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return parent_value;
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
return GST_STATE_SUCCESS;
}

341
sys/v4l/gstv4ltuner.c Normal file
View file

@ -0,0 +1,341 @@
/* GStreamer Tuner interface implementation
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* gstv4ltuner.c: tuner 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 <gst/tuner/tuner.h>
#include "gstv4ltuner.h"
#include "gstv4lelement.h"
#include "v4l_calls.h"
static void gst_v4l_tuner_channel_class_init(GstV4lTunerChannelClass *klass);
static void gst_v4l_tuner_channel_init (GstV4lTunerChannel *channel);
static void gst_v4l_tuner_norm_class_init (GstV4lTunerNormClass *klass);
static void gst_v4l_tuner_norm_init (GstV4lTunerNorm *norm);
static const GList *
gst_v4l_tuner_list_channels (GstTuner *tuner);
static void gst_v4l_tuner_set_channel (GstTuner *tuner,
GstTunerChannel *channel);
static const GstTunerChannel *
gst_v4l_tuner_get_channel (GstTuner *tuner);
static const GList *
gst_v4l_tuner_list_norms (GstTuner *tuner);
static void gst_v4l_tuner_set_norm (GstTuner *tuner,
GstTunerNorm *norm);
static const GstTunerNorm *
gst_v4l_tuner_get_norm (GstTuner *tuner);
static void gst_v4l_tuner_set_frequency (GstTuner *tuner,
GstTunerChannel *channel,
gulong frequency);
static gulong gst_v4l_tuner_get_frequency (GstTuner *tuner,
GstTunerChannel *channel);
static gint gst_v4l_tuner_signal_strength (GstTuner *tuner,
GstTunerChannel *channel);
static GstTunerNormClass *norm_parent_class = NULL;
static GstTunerChannelClass *channel_parent_class = NULL;
GType
gst_v4l_tuner_channel_get_type (void)
{
static GType gst_v4l_tuner_channel_type = 0;
if (!gst_v4l_tuner_channel_type) {
static const GTypeInfo v4l_tuner_channel_info = {
sizeof (GstV4lTunerChannelClass),
NULL,
NULL,
(GClassInitFunc) gst_v4l_tuner_channel_class_init,
NULL,
NULL,
sizeof (GstV4lTunerChannel),
0,
(GInstanceInitFunc) gst_v4l_tuner_channel_init,
NULL
};
gst_v4l_tuner_channel_type =
g_type_register_static (GST_TYPE_TUNER_CHANNEL,
"GstV4lTunerChannel",
&v4l_tuner_channel_info, 0);
}
return gst_v4l_tuner_channel_type;
}
static void
gst_v4l_tuner_channel_class_init (GstV4lTunerChannelClass *klass)
{
channel_parent_class = g_type_class_ref (GST_TYPE_TUNER_CHANNEL);
}
static void
gst_v4l_tuner_channel_init (GstV4lTunerChannel *channel)
{
channel->index = 0;
channel->audio = 0;
channel->tuner = 0;
}
GType
gst_v4l_tuner_norm_get_type (void)
{
static GType gst_v4l_tuner_norm_type = 0;
if (!gst_v4l_tuner_norm_type) {
static const GTypeInfo v4l_tuner_norm_info = {
sizeof (GstV4lTunerNormClass),
NULL,
NULL,
(GClassInitFunc) gst_v4l_tuner_norm_class_init,
NULL,
NULL,
sizeof (GstV4lTunerNorm),
0,
(GInstanceInitFunc) gst_v4l_tuner_norm_init,
NULL
};
gst_v4l_tuner_norm_type =
g_type_register_static (GST_TYPE_TUNER_NORM,
"GstV4lTunerNorm",
&v4l_tuner_norm_info, 0);
}
return gst_v4l_tuner_norm_type;
}
static void
gst_v4l_tuner_norm_class_init (GstV4lTunerNormClass *klass)
{
norm_parent_class = g_type_class_ref (GST_TYPE_TUNER_NORM);
}
static void
gst_v4l_tuner_norm_init (GstV4lTunerNorm *norm)
{
norm->index = 0;
}
void
gst_v4l_tuner_interface_init (GstTunerClass *klass)
{
/* default virtual functions */
klass->list_channels = gst_v4l_tuner_list_channels;
klass->set_channel = gst_v4l_tuner_set_channel;
klass->get_channel = gst_v4l_tuner_get_channel;
klass->list_norms = gst_v4l_tuner_list_norms;
klass->set_norm = gst_v4l_tuner_set_norm;
klass->get_norm = gst_v4l_tuner_get_norm;
klass->set_frequency = gst_v4l_tuner_set_frequency;
klass->get_frequency = gst_v4l_tuner_get_frequency;
klass->signal_strength = gst_v4l_tuner_signal_strength;
}
static gboolean
gst_v4l_tuner_contains_channel (GstV4lElement *v4lelement,
GstV4lTunerChannel *v4lchannel)
{
const GList *item;
for (item = v4lelement->channels; item != NULL; item = item->next)
if (item->data == v4lchannel)
return TRUE;
return FALSE;
}
static const GList *
gst_v4l_tuner_list_channels (GstTuner *tuner)
{
return GST_V4LELEMENT (tuner)->channels;
}
static void
gst_v4l_tuner_set_channel (GstTuner *tuner,
GstTunerChannel *channel)
{
GstV4lElement *v4lelement = GST_V4LELEMENT (tuner);
GstV4lTunerChannel *v4lchannel = GST_V4L_TUNER_CHANNEL (channel);
gint norm;
/* 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_tuner_contains_channel (v4lelement, v4lchannel));
gst_v4l_get_chan_norm (v4lelement, NULL, &norm);
gst_v4l_set_chan_norm (v4lelement, v4lchannel->index, norm);
}
static const GstTunerChannel *
gst_v4l_tuner_get_channel (GstTuner *tuner)
{
GstV4lElement *v4lelement = GST_V4LELEMENT (tuner);
GList *item;
gint channel;
/* assert that we're opened */
g_return_val_if_fail (GST_V4L_IS_OPEN (v4lelement), NULL);
gst_v4l_get_chan_norm (v4lelement, &channel, NULL);
for (item = v4lelement->channels; item != NULL; item = item->next) {
if (channel == GST_V4L_TUNER_CHANNEL (item->data)->index)
return (const GstTunerChannel *) item->data;
}
return NULL;
}
static gboolean
gst_v4l_tuner_contains_norm (GstV4lElement *v4lelement,
GstV4lTunerNorm *v4lnorm)
{
const GList *item;
for (item = v4lelement->norms; item != NULL; item = item->next)
if (item->data == v4lnorm)
return TRUE;
return FALSE;
}
static const GList *
gst_v4l_tuner_list_norms (GstTuner *tuner)
{
return GST_V4LELEMENT (tuner)->norms;
}
static void
gst_v4l_tuner_set_norm (GstTuner *tuner,
GstTunerNorm *norm)
{
GstV4lElement *v4lelement = GST_V4LELEMENT (tuner);
GstV4lTunerNorm *v4lnorm = GST_V4L_TUNER_NORM (norm);
gint 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_tuner_contains_norm (v4lelement, v4lnorm));
gst_v4l_get_chan_norm (v4lelement, &channel, NULL);
gst_v4l_set_chan_norm (v4lelement, channel, v4lnorm->index);
}
static const GstTunerNorm *
gst_v4l_tuner_get_norm (GstTuner *tuner)
{
GstV4lElement *v4lelement = GST_V4LELEMENT (tuner);
GList *item;
gint norm;
/* assert that we're opened */
g_return_val_if_fail (GST_V4L_IS_OPEN (v4lelement), NULL);
gst_v4l_get_chan_norm (v4lelement, NULL, &norm);
for (item = v4lelement->norms; item != NULL; item = item->next) {
if (norm == GST_V4L_TUNER_NORM (item->data)->index)
return (const GstTunerNorm *) item->data;
}
return NULL;
}
static void
gst_v4l_tuner_set_frequency (GstTuner *tuner,
GstTunerChannel *channel,
gulong frequency)
{
GstV4lElement *v4lelement = GST_V4LELEMENT (tuner);
GstV4lTunerChannel *v4lchannel = GST_V4L_TUNER_CHANNEL(channel);
gint chan;
/* 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_TUNER_CHANNEL_HAS_FLAG (channel,
GST_TUNER_CHANNEL_FREQUENCY));
g_return_if_fail (gst_v4l_tuner_contains_channel (v4lelement, v4lchannel));
gst_v4l_get_chan_norm (v4lelement, &chan, NULL);
if (chan == GST_V4L_TUNER_CHANNEL (channel)->index) {
gst_v4l_set_frequency (v4lelement, v4lchannel->tuner, frequency);
}
}
static gulong
gst_v4l_tuner_get_frequency (GstTuner *tuner,
GstTunerChannel *channel)
{
GstV4lElement *v4lelement = GST_V4LELEMENT (tuner);
GstV4lTunerChannel *v4lchannel = GST_V4L_TUNER_CHANNEL(channel);
gint chan;
gulong frequency = 0;
/* 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_TUNER_CHANNEL_HAS_FLAG (channel,
GST_TUNER_CHANNEL_FREQUENCY), 0);
g_return_val_if_fail (gst_v4l_tuner_contains_channel (v4lelement,
v4lchannel), 0);
gst_v4l_get_chan_norm (v4lelement, &chan, NULL);
if (chan == GST_V4L_TUNER_CHANNEL (channel)->index) {
gst_v4l_get_frequency (v4lelement, v4lchannel->tuner, &frequency);
}
return frequency;
}
static gint
gst_v4l_tuner_signal_strength (GstTuner *tuner,
GstTunerChannel *channel)
{
GstV4lElement *v4lelement = GST_V4LELEMENT (tuner);
GstV4lTunerChannel *v4lchannel = GST_V4L_TUNER_CHANNEL(channel);
gint chan;
gint signal = 0;
/* 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_TUNER_CHANNEL_HAS_FLAG (channel,
GST_TUNER_CHANNEL_FREQUENCY), 0);
g_return_val_if_fail (gst_v4l_tuner_contains_channel (v4lelement,
v4lchannel), 0);
gst_v4l_get_chan_norm (v4lelement, &chan, NULL);
if (chan == GST_V4L_TUNER_CHANNEL (channel)->index &&
GST_TUNER_CHANNEL_HAS_FLAG (channel, GST_TUNER_CHANNEL_FREQUENCY)) {
gst_v4l_get_signal (v4lelement, v4lchannel->tuner, &signal);
}
return signal;
}

83
sys/v4l/gstv4ltuner.h Normal file
View file

@ -0,0 +1,83 @@
/* G-Streamer generic V4L element - Tuner interface implementation
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* gstv4ltuner.h: tuner 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.
*/
#ifndef __GST_V4L_TUNER_H__
#define __GST_V4L_TUNER_H__
#include <gst/gst.h>
#include <gst/tuner/tuner.h>
G_BEGIN_DECLS
#define GST_TYPE_V4L_TUNER_CHANNEL \
(gst_v4l_tuner_channel_get_type ())
#define GST_V4L_TUNER_CHANNEL(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_V4L_TUNER_CHANNEL, \
GstV4lTunerChannel))
#define GST_V4L_TUNER_CHANNEL_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_V4L_TUNER_CHANNEL, \
GstV4lTunerChannelClass))
#define GST_IS_V4L_TUNER_CHANNEL(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_V4L_TUNER_CHANNEL))
#define GST_IS_V4L_TUNER_CHANNEL_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_V4L_TUNER_CHANNEL))
typedef struct _GstV4lTunerChannel {
GstTunerChannel parent;
gint index;
gint tuner;
gint audio;
} GstV4lTunerChannel;
typedef struct _GstV4lTunerChannelClass {
GstTunerChannelClass parent;
} GstV4lTunerChannelClass;
#define GST_TYPE_V4L_TUNER_NORM \
(gst_v4l_tuner_norm_get_type ())
#define GST_V4L_TUNER_NORM(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_V4L_TUNER_NORM, \
GstV4lTunerNorm))
#define GST_V4L_TUNER_NORM_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_V4L_TUNER_NORM, \
GstV4lTunerNormClass))
#define GST_IS_V4L_TUNER_NORM(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_V4L_TUNER_NORM))
#define GST_IS_V4L_TUNER_NORM_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_V4L_TUNER_NORM))
typedef struct _GstV4lTunerNorm {
GstTunerNorm parent;
gint index;
} GstV4lTunerNorm;
typedef struct _GstV4lTunerNormClass {
GstTunerNormClass parent;
} GstV4lTunerNormClass;
GType gst_v4l_tuner_channel_get_type (void);
GType gst_v4l_tuner_norm_get_type (void);
void gst_v4l_tuner_interface_init (GstTunerClass *klass);
#endif /* __GST_V4L_TUNER_H__ */

126
sys/v4l/gstv4lxoverlay.c Normal file
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@ -0,0 +1,126 @@
/* GStreamer X-based overlay interface implementation
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* gstv4lxoverlay.c: X-based overlay 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 <gst/xoverlay/xoverlay.h>
#include <gst/xwindowlistener/xwindowlistener.h>
#include "gstv4lxoverlay.h"
#include "gstv4lelement.h"
#include "v4l_calls.h"
static void gst_v4l_xoverlay_set_xwindow_id (GstXOverlay *overlay,
XID xwindow_id);
void
gst_v4l_xoverlay_interface_init (GstXOverlayClass *klass)
{
/* default virtual functions */
klass->set_xwindow_id = gst_v4l_xoverlay_set_xwindow_id;
}
GstXWindowListener *
gst_v4l_xoverlay_new (GstV4lElement *v4lelement)
{
GstXWindowListener *xwin =
gst_x_window_listener_new (NULL,
(MapWindowFunc) gst_v4l_enable_overlay,
(SetWindowFunc) gst_v4l_set_window,
(gpointer) v4lelement);
v4lelement->overlay = xwin;
v4lelement->xwindow_id = 0;
return xwin;
}
void
gst_v4l_xoverlay_free (GstV4lElement *v4lelement)
{
gst_v4l_xoverlay_close (v4lelement);
g_object_unref (G_OBJECT (v4lelement->overlay));
v4lelement->overlay = NULL;
}
void
gst_v4l_xoverlay_open (GstV4lElement *v4lelement)
{
GstXWindowListener *xwin = v4lelement->overlay;
if (xwin != NULL) {
xwin->display_name = g_strdup (v4lelement->display);
if (v4lelement->xwindow_id != 0 &&
xwin->display_name &&
xwin->display_name[0] == ':') {
gst_x_window_listener_set_xid (xwin, v4lelement->xwindow_id);
}
}
}
void
gst_v4l_xoverlay_close (GstV4lElement *v4lelement)
{
GstXWindowListener *xwin = v4lelement->overlay;
if (xwin != NULL) {
if (v4lelement->xwindow_id != 0 &&
xwin->display_name &&
xwin->display_name[0] == ':') {
gst_x_window_listener_set_xid (xwin, 0);
}
g_free (xwin->display_name);
xwin->display_name = NULL;
}
}
static void
gst_v4l_xoverlay_set_xwindow_id (GstXOverlay *overlay,
XID xwindow_id)
{
GstV4lElement *v4lelement = GST_V4LELEMENT (overlay);
GstXWindowListener *xwin = v4lelement->overlay;
if (v4lelement->xwindow_id == xwindow_id) {
return;
}
if (gst_element_get_state (GST_ELEMENT (v4lelement)) != GST_STATE_NULL &&
v4lelement->xwindow_id != 0 &&
xwin && xwin->display_name &&
xwin->display_name[0] == ':') {
gst_x_window_listener_set_xid (xwin, 0);
}
v4lelement->xwindow_id = xwindow_id;
if (gst_element_get_state (GST_ELEMENT (v4lelement)) != GST_STATE_NULL &&
v4lelement->xwindow_id != 0 &&
xwin && xwin->display_name &&
xwin->display_name[0] == ':') {
gst_x_window_listener_set_xid (xwin, v4lelement->xwindow_id);
}
}

42
sys/v4l/gstv4lxoverlay.h Normal file
View file

@ -0,0 +1,42 @@
/* G-Streamer generic V4L element - X overlay interface implementation
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* gstv4lxoverlay.h: tv mixer 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.
*/
#ifndef __GST_V4L_X_OVERLAY_H__
#define __GST_V4L_X_OVERLAY_H__
#include <gst/gst.h>
#include <gst/xoverlay/xoverlay.h>
#include "gstv4lelement.h"
G_BEGIN_DECLS
void gst_v4l_xoverlay_interface_init (GstXOverlayClass *klass);
GstXWindowListener *
gst_v4l_xoverlay_new (GstV4lElement *v4lelement);
void gst_v4l_xoverlay_free (GstV4lElement *v4lelement);
/* signal handlers */
void gst_v4l_xoverlay_open (GstV4lElement *v4lelement);
void gst_v4l_xoverlay_close (GstV4lElement *v4lelement);
#endif /* __GST_V4L_X_OVERLAY_H__ */

20
sys/v4l/v4l-overlay_calls.c
View file

@ -44,30 +44,34 @@
******************************************************/
gboolean
gst_v4l_set_overlay (GstV4lElement *v4lelement,
gchar *display)
gst_v4l_set_overlay (GstV4lElement *v4lelement)
{
gchar *buff;
DEBUG("setting display to '%s'", display);
if (v4lelement->display)
g_free(v4lelement->display);
v4lelement->display = g_strdup(g_getenv("DISPLAY"));
DEBUG("setting display to '%s'", v4lelement->display);
GST_V4L_CHECK_NOT_OPEN(v4lelement);
if (!v4lelement->display || v4lelement->display[0] != ':')
return FALSE;
/* start v4l-conf */
buff = g_strdup_printf("v4l-conf -q -c %s -d %s",
v4lelement->videodev?v4lelement->videodev:"/dev/video", display);
v4lelement->videodev, v4lelement->display);
switch (system(buff))
{
case -1:
gst_element_error(GST_ELEMENT(v4lelement),
"Could not start v4l-conf: %s", g_strerror(errno));
g_warning("Could not start v4l-conf: %s", g_strerror(errno));
g_free(buff);
return FALSE;
case 0:
break;
default:
gst_element_error(GST_ELEMENT(v4lelement),
"v4l-conf failed to run correctly: %s", g_strerror(errno));
g_warning("v4l-conf failed to run correctly: %s", g_strerror(errno));
g_free(buff);
return FALSE;
}

204
sys/v4l/v4l_calls.c
View file

@ -30,7 +30,13 @@
#include <errno.h>
#include <unistd.h>
#include <gst/gst.h>
#include <gst/tuner/tuner.h>
#include <gst/colorbalance/colorbalance.h>
#include "v4l_calls.h"
#include "gstv4ltuner.h"
#include "gstv4lcolorbalance.h"
#define DEBUG(format, args...) \
GST_DEBUG_OBJECT (\
@ -38,7 +44,7 @@
"V4L: " format, ##args)
const char *picture_name[] = {
static const char *picture_name[] = {
"Hue",
"Brightness",
"Contrast",
@ -46,14 +52,14 @@ const char *picture_name[] = {
NULL
};
const char *audio_name[] = {
static const char *audio_name[] = {
"Volume",
"Mute",
"Mode",
NULL
};
const char *norm_name[] = {
static const char *norm_name[] = {
"PAL",
"NTSC",
"SECAM",
@ -94,15 +100,17 @@ gboolean
gst_v4l_open (GstV4lElement *v4lelement)
{
int num;
GParamSpec *spec;
DEBUG("opening device %s", v4lelement->videodev);
GST_V4L_CHECK_NOT_OPEN(v4lelement);
GST_V4L_CHECK_NOT_ACTIVE(v4lelement);
/* be sure we have a device */
if (!v4lelement->videodev)
v4lelement->videodev = g_strdup("/dev/video");
if (!v4lelement->videodev) {
gst_element_error (GST_ELEMENT (v4lelement),
"No device given - open failed");
return FALSE;
}
/* open the device */
v4lelement->video_fd = open(v4lelement->videodev, O_RDWR);
@ -125,22 +133,34 @@ gst_v4l_open (GstV4lElement *v4lelement)
gst_info("Opened device \'%s\' (\'%s\') successfully\n",
v4lelement->vcap.name, v4lelement->videodev);
for (num=0;norm_name[num]!=NULL;num++)
v4lelement->norm_names = g_list_append(v4lelement->norm_names, (gpointer)norm_name[num]);
v4lelement->input_names = gst_v4l_get_chan_names(v4lelement);
/* norms + inputs, for the tuner interface */
for (num=0;norm_name[num]!=NULL;num++) {
GstV4lTunerNorm *v4lnorm = g_object_new (GST_TYPE_V4L_TUNER_NORM,
NULL);
GstTunerNorm *norm = GST_TUNER_NORM (v4lnorm);
norm->label = g_strdup (norm_name[num]);
norm->fps = (num == 1) ? (30000./1001) : 25.;
v4lnorm->index = num;
v4lelement->norms = g_list_append(v4lelement->norms,
(gpointer) norm);
}
v4lelement->channels = gst_v4l_get_chan_names(v4lelement);
for (num=0;picture_name[num]!=NULL;num++)
{
spec = g_param_spec_int(picture_name[num], picture_name[num],
picture_name[num], 0, 65535, 32768,
G_PARAM_READWRITE);
v4lelement->control_specs = g_list_append(v4lelement->control_specs, spec);
GstV4lColorBalanceChannel *v4lchannel =
g_object_new (GST_TYPE_V4L_COLOR_BALANCE_CHANNEL, NULL);
GstColorBalanceChannel *channel = GST_COLOR_BALANCE_CHANNEL (v4lchannel);
channel->label = g_strdup (picture_name[num]);
channel->min_value = 0;
channel->max_value = 65535;
v4lchannel->index = num;
v4lelement->colors = g_list_append(v4lelement->colors, channel);
}
spec = g_param_spec_boolean("mute", "mute", "mute", TRUE, G_PARAM_READWRITE);
v4lelement->control_specs = g_list_append(v4lelement->control_specs, spec);
spec = g_param_spec_int("volume", "volume", "volume",
0, 65535, 0, G_PARAM_READWRITE);
v4lelement->control_specs = g_list_append(v4lelement->control_specs, spec);
DEBUG("Setting default norm/input");
gst_v4l_set_chan_norm (v4lelement, 0, 0);
return TRUE;
}
@ -162,20 +182,17 @@ gst_v4l_close (GstV4lElement *v4lelement)
close(v4lelement->video_fd);
v4lelement->video_fd = -1;
while (g_list_length(v4lelement->input_names) > 0)
{
gpointer data = g_list_nth_data(v4lelement->input_names, 0);
v4lelement->input_names = g_list_remove(v4lelement->input_names, data);
g_free(data);
}
g_list_free(v4lelement->norm_names);
v4lelement->norm_names = NULL;
while (g_list_length(v4lelement->control_specs) > 0)
{
gpointer data = g_list_nth_data(v4lelement->control_specs, 0);
v4lelement->control_specs = g_list_remove(v4lelement->control_specs, data);
g_param_spec_unref(G_PARAM_SPEC(data));
}
g_list_foreach (v4lelement->channels, (GFunc) g_object_unref, NULL);
g_list_free (v4lelement->channels);
v4lelement->channels = NULL;
g_list_foreach (v4lelement->norms, (GFunc) g_object_unref, NULL);
g_list_free (v4lelement->norms);
v4lelement->norms = NULL;
g_list_foreach (v4lelement->colors, (GFunc) g_object_unref, NULL);
g_list_free (v4lelement->colors);
v4lelement->colors = NULL;
return TRUE;
}
@ -205,6 +222,7 @@ GList *
gst_v4l_get_chan_names (GstV4lElement *v4lelement)
{
struct video_channel vchan;
const GList *pads = gst_element_get_pad_list (GST_ELEMENT (v4lelement));
GList *list = NULL;
gint i;
@ -213,12 +231,58 @@ gst_v4l_get_chan_names (GstV4lElement *v4lelement)
if (!GST_V4L_IS_OPEN(v4lelement))
return NULL;
/* sinks don't have inputs in v4l */
if (pads && g_list_length ((GList *) pads) == 1)
if (GST_PAD_DIRECTION (GST_PAD (pads->data)) == GST_PAD_SINK)
return NULL;
for (i=0;i<gst_v4l_get_num_chans(v4lelement);i++)
{
GstV4lTunerChannel *v4lchannel = g_object_new (GST_TYPE_V4L_TUNER_CHANNEL,
NULL);
GstTunerChannel *channel = GST_TUNER_CHANNEL (v4lchannel);
vchan.channel = i;
if (ioctl(v4lelement->video_fd, VIDIOCGCHAN, &vchan) < 0)
return NULL;
list = g_list_append(list, (gpointer)g_strdup(vchan.name));
return NULL; /* memleak... */
channel->label = g_strdup (vchan.name);
channel->flags = GST_TUNER_CHANNEL_INPUT;
v4lchannel->index = i;
if (vchan.flags & VIDEO_VC_TUNER) {
struct video_tuner vtun;
gint n;
for (n = 0; ; n++) {
vtun.tuner = n;
if (ioctl(v4lelement->video_fd, VIDIOCGTUNER, &vtun) < 0)
break; /* no more tuners */
if (!strcmp(vtun.name, vchan.name)) {
v4lchannel->tuner = n;
channel->flags |= GST_TUNER_CHANNEL_FREQUENCY;
channel->min_frequency = vtun.rangelow;
channel->max_frequency = vtun.rangehigh;
channel->min_signal = 0;
channel->max_signal = 0xffff;
break;
}
}
}
if (vchan.flags & VIDEO_VC_AUDIO) {
struct video_audio vaud;
gint n;
for (n = 0; n < v4lelement->vcap.audios; n++) {
vaud.audio = n;
if (ioctl(v4lelement->video_fd, VIDIOCGAUDIO, &vaud) < 0)
continue;
if (!strcmp(vaud.name, vchan.name)) {
v4lchannel->audio = n;
channel->flags |= GST_TUNER_CHANNEL_AUDIO;
break;
}
}
}
list = g_list_append(list, (gpointer) channel);
}
return list;
@ -289,21 +353,6 @@ gst_v4l_set_chan_norm (GstV4lElement *v4lelement,
}
/******************************************************
* gst_v4l_has_tuner():
* return value: TRUE if it has a tuner, else FALSE
******************************************************/
gboolean
gst_v4l_has_tuner (GstV4lElement *v4lelement)
{
DEBUG("checking whether device has a tuner");
GST_V4L_CHECK_OPEN(v4lelement);
return v4lelement->vcap.type & VID_TYPE_TUNER;
}
/******************************************************
* gst_v4l_get_signal():
* get the current signal
@ -312,17 +361,15 @@ gst_v4l_has_tuner (GstV4lElement *v4lelement)
gboolean
gst_v4l_get_signal (GstV4lElement *v4lelement,
guint *signal)
gint tunernum,
guint *signal)
{
struct video_tuner tuner;
struct video_tuner tuner;
DEBUG("getting tuner signal");
GST_V4L_CHECK_OPEN(v4lelement);
if (!gst_v4l_has_tuner(v4lelement))
return FALSE;
tuner.tuner = 0;
tuner.tuner = tunernum;
if (ioctl(v4lelement->video_fd, VIDIOCGTUNER, &tuner) < 0)
{
gst_element_error(GST_ELEMENT(v4lelement),
@ -345,12 +392,19 @@ gst_v4l_get_signal (GstV4lElement *v4lelement,
gboolean
gst_v4l_get_frequency (GstV4lElement *v4lelement,
gint tunernum,
gulong *frequency)
{
struct video_tuner vtun;
DEBUG("getting tuner frequency");
GST_V4L_CHECK_OPEN(v4lelement);
if (!gst_v4l_has_tuner(v4lelement))
/* check that this is the current input */
vtun.tuner = tunernum;
if (ioctl (v4lelement->video_fd, VIDIOCGTUNER, &vtun) < 0)
return FALSE;
if (strcmp(vtun.name, v4lelement->vchan.name))
return FALSE;
if (ioctl(v4lelement->video_fd, VIDIOCGFREQ, frequency) < 0)
@ -373,12 +427,19 @@ gst_v4l_get_frequency (GstV4lElement *v4lelement,
gboolean
gst_v4l_set_frequency (GstV4lElement *v4lelement,
gulong frequency)
gint tunernum,
gulong frequency)
{
struct video_tuner vtun;
DEBUG("setting tuner frequency to %lu", frequency);
GST_V4L_CHECK_OPEN(v4lelement);
if (!gst_v4l_has_tuner(v4lelement))
/* check that this is the current input */
vtun.tuner = tunernum;
if (ioctl (v4lelement->video_fd, VIDIOCGTUNER, &vtun) < 0)
return FALSE;
if (strcmp(vtun.name, v4lelement->vchan.name))
return FALSE;
if (ioctl(v4lelement->video_fd, VIDIOCSFREQ, &frequency) < 0)
@ -501,21 +562,6 @@ gst_v4l_set_picture (GstV4lElement *v4lelement,
}
/******************************************************
* gst_v4l_has_audio():
* return value: TRUE if it can do audio, else FALSE
******************************************************/
gboolean
gst_v4l_has_audio (GstV4lElement *v4lelement)
{
DEBUG("checking whether device has audio");
GST_V4L_CHECK_OPEN(v4lelement);
return v4lelement->vcap.audios > 0;
}
/******************************************************
* gst_v4l_get_audio():
* get some audio value
@ -524,6 +570,7 @@ gst_v4l_has_audio (GstV4lElement *v4lelement)
gboolean
gst_v4l_get_audio (GstV4lElement *v4lelement,
gint audionum,
GstV4lAudioType type,
gint *value)
{
@ -533,9 +580,7 @@ gst_v4l_get_audio (GstV4lElement *v4lelement,
type, audio_name[type]);
GST_V4L_CHECK_OPEN(v4lelement);
if (!gst_v4l_has_audio(v4lelement))
return FALSE;
vau.audio = audionum;
if (ioctl(v4lelement->video_fd, VIDIOCGAUDIO, &vau) < 0)
{
gst_element_error(GST_ELEMENT(v4lelement),
@ -574,6 +619,7 @@ gst_v4l_get_audio (GstV4lElement *v4lelement,
gboolean
gst_v4l_set_audio (GstV4lElement *v4lelement,
gint audionum,
GstV4lAudioType type,
gint value)
{
@ -583,9 +629,7 @@ gst_v4l_set_audio (GstV4lElement *v4lelement,
type, audio_name[type], value);
GST_V4L_CHECK_OPEN(v4lelement);
if (!gst_v4l_has_audio(v4lelement))
return FALSE;
vau.audio = audionum;
if (ioctl(v4lelement->video_fd, VIDIOCGAUDIO, &vau) < 0)
{
gst_element_error(GST_ELEMENT(v4lelement),

60
sys/v4l/v4l_calls.h
View file

@ -91,50 +91,64 @@ typedef enum {
V4L_PICTURE_SATURATION,
} GstV4lPictureType;
extern const char *picture_name[];
typedef enum {
V4L_AUDIO_VOLUME = 0,
V4L_AUDIO_MUTE,
V4L_AUDIO_MODE, /* stereo, mono, ... (see videodev.h) */
} GstV4lAudioType;
extern const char *audio_name[];
extern const char *norm_name[];
/* open/close the device */
gboolean gst_v4l_open (GstV4lElement *v4lelement);
gboolean gst_v4l_close (GstV4lElement *v4lelement);
/* norm control (norm = VIDEO_MODE_{PAL|NTSC|SECAM|AUTO}) */
gint gst_v4l_get_num_chans (GstV4lElement *v4lelement);
gboolean gst_v4l_get_chan_norm (GstV4lElement *v4lelement, gint *channel, gint *norm);
gboolean gst_v4l_set_chan_norm (GstV4lElement *v4lelement, gint channel, gint norm);
gboolean gst_v4l_get_chan_norm (GstV4lElement *v4lelement,
gint *channel,
gint *norm);
gboolean gst_v4l_set_chan_norm (GstV4lElement *v4lelement,
gint channel,
gint norm);
GList *gst_v4l_get_chan_names (GstV4lElement *v4lelement);
/* frequency control */
gboolean gst_v4l_has_tuner (GstV4lElement *v4lelement);
gboolean gst_v4l_get_signal (GstV4lElement *v4lelement, guint *signal);
gboolean gst_v4l_get_frequency (GstV4lElement *v4lelement, gulong *frequency);
gboolean gst_v4l_set_frequency (GstV4lElement *v4lelement, gulong frequency);
gboolean gst_v4l_get_signal (GstV4lElement *v4lelement,
gint tunernum,
guint *signal);
gboolean gst_v4l_get_frequency (GstV4lElement *v4lelement,
gint tunernum,
gulong *frequency);
gboolean gst_v4l_set_frequency (GstV4lElement *v4lelement,
gint tunernum,
gulong frequency);
/* picture control */
gboolean gst_v4l_get_picture (GstV4lElement *v4lelement, GstV4lPictureType type, gint *value);
gboolean gst_v4l_set_picture (GstV4lElement *v4lelement, GstV4lPictureType type, gint value);
gboolean gst_v4l_get_picture (GstV4lElement *v4lelement,
GstV4lPictureType type,
gint *value);
gboolean gst_v4l_set_picture (GstV4lElement *v4lelement,
GstV4lPictureType type,
gint value);
/* audio control */
gboolean gst_v4l_has_audio (GstV4lElement *v4lelement);
gboolean gst_v4l_get_audio (GstV4lElement *v4lelement, GstV4lAudioType type, gint *value);
gboolean gst_v4l_set_audio (GstV4lElement *v4lelement, GstV4lAudioType type, gint value);
gboolean gst_v4l_get_audio (GstV4lElement *v4lelement,
gint audionum,
GstV4lAudioType type,
gint *value);
gboolean gst_v4l_set_audio (GstV4lElement *v4lelement,
gint audionum,
GstV4lAudioType type,
gint value);
/* overlay */
gboolean gst_v4l_set_overlay (GstV4lElement *v4lelement, gchar *display);
gboolean gst_v4l_set_window (GstElement *element, gint x, gint y,
gint w, gint h,
struct video_clip *clips, gint num_clips);
gboolean gst_v4l_enable_overlay (GstV4lElement *v4lelement, gboolean enable);
gboolean gst_v4l_set_overlay (GstV4lElement *v4lelement);
gboolean gst_v4l_set_window (GstElement *element,
gint x, gint y,
gint w, gint h,
struct video_clip *clips,
gint num_clips);
gboolean gst_v4l_enable_overlay (GstV4lElement *v4lelement,
gboolean enable);
#ifdef __cplusplus

96
sys/v4l/v4lmjpegsrc_calls.c
View file

@ -42,9 +42,6 @@
GST_ELEMENT(v4lmjpegsrc), \
"V4LMJPEGSRC: " format, ##args)
char *input_name[] = { "Composite", "S-Video", "TV-Tuner", "Autodetect" };
enum {
QUEUE_STATE_ERROR = -1,
QUEUE_STATE_READY_FOR_QUEUE,
@ -119,99 +116,6 @@ gst_v4lmjpegsrc_sync_next_frame (GstV4lMjpegSrc *v4lmjpegsrc,
}
/******************************************************
* gst_v4lmjpegsrc_set_input_norm():
* set input/norm (includes autodetection), norm is
* VIDEO_MODE_{PAL|NTSC|SECAM|AUTO}
* return value: TRUE on success, FALSE on error
******************************************************/
gboolean
gst_v4lmjpegsrc_set_input_norm (GstV4lMjpegSrc *v4lmjpegsrc,
GstV4lMjpegInputType input,
gint norm)
{
struct mjpeg_status bstat;
DEBUG("setting input = %d (%s), norm = %d (%s)",
input, input_name[input], norm, norm_name[norm]);
GST_V4L_CHECK_OPEN(GST_V4LELEMENT(v4lmjpegsrc));
GST_V4L_CHECK_NOT_ACTIVE(GST_V4LELEMENT(v4lmjpegsrc));
if (input == V4L_MJPEG_INPUT_AUTO)
{
int n;
for (n=V4L_MJPEG_INPUT_COMPOSITE;n<V4L_MJPEG_INPUT_AUTO;n++)
{
gst_info("Trying %s as input...\n",
input_name[n]);
bstat.input = n;
if (ioctl(GST_V4LELEMENT(v4lmjpegsrc)->video_fd, MJPIOC_G_STATUS, &bstat) < 0)
{
gst_element_error(GST_ELEMENT(v4lmjpegsrc),
"Error getting device status: %s",
g_strerror(errno));
return FALSE;
}
if (bstat.signal)
{
input = bstat.input;
if (norm == VIDEO_MODE_AUTO)
norm = bstat.norm;
gst_info("Signal found: on input %s, norm %s\n",
input_name[bstat.input], norm_name[bstat.norm]);
break;
}
}
/* check */
if (input == V4L_MJPEG_INPUT_AUTO || norm == VIDEO_MODE_AUTO)
{
gst_element_error(GST_ELEMENT(v4lmjpegsrc),
"Unable to auto-detect an input");
return FALSE;
}
/* save */
GST_V4LELEMENT(v4lmjpegsrc)->channel = input;
GST_V4LELEMENT(v4lmjpegsrc)->norm = norm;
}
else if (norm == VIDEO_MODE_AUTO && input)
{
bstat.input = input;
if (ioctl(GST_V4LELEMENT(v4lmjpegsrc)->video_fd, MJPIOC_G_STATUS, &bstat) < 0)
{
gst_element_error(GST_ELEMENT(v4lmjpegsrc),
"Error getting device status: %s",
g_strerror(errno));
return FALSE;
}
if (bstat.signal)
{
norm = bstat.norm;
gst_info("Norm %s detected on input %s\n",
norm_name[bstat.norm], input_name[input]);
GST_V4LELEMENT(v4lmjpegsrc)->norm = norm;
}
else
{
gst_element_error(GST_ELEMENT(v4lmjpegsrc),
"No signal found on input %s",
input_name[input]);
return FALSE;
}
}
return gst_v4l_set_chan_norm(GST_V4LELEMENT(v4lmjpegsrc), input, norm);
}
/******************************************************
* gst_v4lmjpegsrc_set_buffer():
* set buffer parameters (size/count)

15
sys/v4l/v4lmjpegsrc_calls.h
View file

@ -28,21 +28,6 @@ extern "C" {
#endif /* __cplusplus */
typedef enum {
V4L_MJPEG_INPUT_COMPOSITE = 0,
V4L_MJPEG_INPUT_SVIDEO = 1,
V4L_MJPEG_INPUT_TVTUNER = 2,
V4L_MJPEG_INPUT_AUTO = 3,
} GstV4lMjpegInputType;
extern char *input_name[];
/* set input/norm (includes autodetection, norm = VIDEO_MODE_{PAL|NTSC|SECAM|AUTO}) */
gboolean gst_v4lmjpegsrc_set_input_norm (GstV4lMjpegSrc *v4lmjpegsrc,
GstV4lMjpegInputType input,
gint norm);
/* frame grabbing/capture */
gboolean gst_v4lmjpegsrc_set_buffer (GstV4lMjpegSrc *v4lmjpegsrc,
gint numbufs,