2001-12-23 17:27:58 +00:00
|
|
|
/* GStreamer
|
|
|
|
* Copyright (C) 2001 Steve Baker <stevebaker_org@yahoo.co.uk>
|
|
|
|
*
|
|
|
|
* gstdparam.c: Dynamic Parameter functionality
|
|
|
|
*
|
|
|
|
* 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.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <math.h>
|
|
|
|
#include <string.h>
|
|
|
|
#include <gst/gstinfo.h>
|
|
|
|
|
2002-04-12 09:24:37 +00:00
|
|
|
#include "dparam.h"
|
|
|
|
#include "dparammanager.h"
|
2001-12-23 17:27:58 +00:00
|
|
|
|
|
|
|
static void gst_dparam_class_init (GstDParamClass *klass);
|
|
|
|
static void gst_dparam_init (GstDParam *dparam);
|
|
|
|
static void gst_dparam_dispose (GObject *object);
|
2002-03-04 18:54:20 +00:00
|
|
|
static void gst_dparam_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
|
|
|
|
static void gst_dparam_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
|
|
|
|
|
|
|
|
enum {
|
|
|
|
ARG_0,
|
|
|
|
ARG_VALUE_FLOAT,
|
|
|
|
ARG_VALUE_INT,
|
|
|
|
ARG_VALUE_INT64,
|
|
|
|
};
|
2001-12-23 17:27:58 +00:00
|
|
|
|
|
|
|
GType
|
|
|
|
gst_dparam_get_type(void) {
|
|
|
|
static GType dparam_type = 0;
|
|
|
|
|
|
|
|
if (!dparam_type) {
|
|
|
|
static const GTypeInfo dparam_info = {
|
|
|
|
sizeof(GstDParamClass),
|
|
|
|
NULL,
|
|
|
|
NULL,
|
|
|
|
(GClassInitFunc)gst_dparam_class_init,
|
|
|
|
NULL,
|
|
|
|
NULL,
|
|
|
|
sizeof(GstDParam),
|
|
|
|
0,
|
|
|
|
(GInstanceInitFunc)gst_dparam_init,
|
|
|
|
};
|
|
|
|
dparam_type = g_type_register_static(GST_TYPE_OBJECT, "GstDParam", &dparam_info, 0);
|
|
|
|
}
|
|
|
|
return dparam_type;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
gst_dparam_class_init (GstDParamClass *klass)
|
|
|
|
{
|
|
|
|
GObjectClass *gobject_class;
|
|
|
|
GstDParamClass *dparam_class;
|
|
|
|
GstObjectClass *gstobject_class;
|
|
|
|
|
|
|
|
gobject_class = (GObjectClass*)klass;
|
|
|
|
dparam_class = (GstDParamClass*)klass;
|
|
|
|
gstobject_class = (GstObjectClass*) klass;
|
2002-03-04 18:54:20 +00:00
|
|
|
|
|
|
|
gobject_class->get_property = gst_dparam_get_property;
|
|
|
|
gobject_class->set_property = gst_dparam_set_property;
|
|
|
|
|
|
|
|
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_VALUE_FLOAT,
|
|
|
|
g_param_spec_float("value_float","Float Value",
|
|
|
|
"The value that should be changed if gfloat is the type",
|
|
|
|
(gfloat)G_MININT64, (gfloat)G_MAXINT64, 0.0F, G_PARAM_READWRITE));
|
|
|
|
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_VALUE_INT,
|
|
|
|
g_param_spec_int("value_int","Integer Value",
|
|
|
|
"The value that should be changed if gint is the type",
|
|
|
|
G_MININT, G_MAXINT, 0, G_PARAM_READWRITE));
|
|
|
|
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_VALUE_INT64,
|
|
|
|
g_param_spec_int64("value_int64","64 bit Integer Value",
|
|
|
|
"The value that should be changed if gint64 is the type",
|
|
|
|
G_MININT64, G_MAXINT64, 0, G_PARAM_READWRITE));
|
|
|
|
|
2001-12-23 17:27:58 +00:00
|
|
|
gobject_class->dispose = gst_dparam_dispose;
|
2002-03-04 18:54:20 +00:00
|
|
|
|
2002-03-19 04:10:13 +00:00
|
|
|
/*gstobject_class->save_thyself = gst_dparam_save_thyself; */
|
2001-12-23 17:27:58 +00:00
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
gst_dparam_init (GstDParam *dparam)
|
|
|
|
{
|
|
|
|
g_return_if_fail (dparam != NULL);
|
|
|
|
GST_DPARAM_TYPE(dparam) = 0;
|
|
|
|
GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam)=0LL;
|
2002-05-05 15:39:37 +00:00
|
|
|
GST_DPARAM_LAST_UPDATE_TIMESTAMP(dparam)=0LL;
|
2001-12-23 17:27:58 +00:00
|
|
|
GST_DPARAM_READY_FOR_UPDATE(dparam)=FALSE;
|
|
|
|
dparam->lock = g_mutex_new ();
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* gst_dparam_new:
|
|
|
|
* @type: the type that this dparam will store
|
|
|
|
*
|
|
|
|
* Returns: a new instance of GstDParam
|
|
|
|
*/
|
|
|
|
GstDParam*
|
|
|
|
gst_dparam_new (GType type)
|
|
|
|
{
|
|
|
|
GstDParam *dparam;
|
|
|
|
|
|
|
|
dparam = g_object_new (gst_dparam_get_type (), NULL);
|
2002-03-04 18:54:20 +00:00
|
|
|
dparam->do_update_func = gst_dparam_do_update_default;
|
|
|
|
|
2001-12-23 17:27:58 +00:00
|
|
|
GST_DPARAM_TYPE(dparam) = type;
|
|
|
|
|
|
|
|
return dparam;
|
|
|
|
}
|
|
|
|
|
2002-03-04 18:54:20 +00:00
|
|
|
|
|
|
|
static void
|
|
|
|
gst_dparam_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
|
|
|
|
{
|
|
|
|
GstDParam *dparam;
|
|
|
|
g_return_if_fail(GST_IS_DPARAM(object));
|
|
|
|
dparam = GST_DPARAM(object);
|
|
|
|
|
2002-04-14 10:08:21 +00:00
|
|
|
switch (prop_id) {
|
2002-03-04 18:54:20 +00:00
|
|
|
default:
|
|
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
gst_dparam_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
|
|
|
|
{
|
|
|
|
GstDParam *dparam;
|
|
|
|
g_return_if_fail(GST_IS_DPARAM(object));
|
|
|
|
dparam = GST_DPARAM(object);
|
|
|
|
GST_DPARAM_LOCK(dparam);
|
|
|
|
|
|
|
|
switch (prop_id) {
|
|
|
|
case ARG_VALUE_FLOAT:
|
2002-03-24 22:07:09 +00:00
|
|
|
GST_DEBUG(GST_CAT_PARAMS, "setting value from %f to %f", dparam->value_float, g_value_get_float (value));
|
2002-03-04 18:54:20 +00:00
|
|
|
dparam->value_float = g_value_get_float (value);
|
|
|
|
GST_DPARAM_READY_FOR_UPDATE(dparam) = TRUE;
|
2002-05-05 15:39:37 +00:00
|
|
|
GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam) = GST_DPARAM_LAST_UPDATE_TIMESTAMP(dparam);
|
2002-03-04 18:54:20 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
case ARG_VALUE_INT:
|
2002-03-24 22:07:09 +00:00
|
|
|
GST_DEBUG(GST_CAT_PARAMS, "setting value from %d to %d", dparam->value_int, g_value_get_int (value));
|
2002-03-04 18:54:20 +00:00
|
|
|
dparam->value_int = g_value_get_int (value);
|
|
|
|
GST_DPARAM_READY_FOR_UPDATE(dparam) = TRUE;
|
2002-05-05 15:39:37 +00:00
|
|
|
GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam) = GST_DPARAM_LAST_UPDATE_TIMESTAMP(dparam);
|
2002-03-04 18:54:20 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
case ARG_VALUE_INT64:
|
2002-03-24 22:07:09 +00:00
|
|
|
GST_DEBUG(GST_CAT_PARAMS, "setting value from %lld to %lld", dparam->value_int64, g_value_get_int64 (value));
|
2002-03-04 18:54:20 +00:00
|
|
|
dparam->value_int64 = g_value_get_int (value);
|
|
|
|
GST_DPARAM_READY_FOR_UPDATE(dparam) = TRUE;
|
2002-05-05 15:39:37 +00:00
|
|
|
GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam) = GST_DPARAM_LAST_UPDATE_TIMESTAMP(dparam);
|
2002-03-04 18:54:20 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
GST_DPARAM_UNLOCK(dparam);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
2002-05-05 15:39:37 +00:00
|
|
|
gst_dparam_do_update_default (GstDParam *dparam, gint64 timestamp, GValue *value, GstDParamUpdateInfo update_info)
|
2002-03-04 18:54:20 +00:00
|
|
|
{
|
|
|
|
GST_DPARAM_LOCK(dparam);
|
|
|
|
|
|
|
|
g_return_if_fail (G_VALUE_TYPE(value) == GST_DPARAM_TYPE(dparam));
|
2002-03-24 22:07:09 +00:00
|
|
|
GST_DEBUG(GST_CAT_PARAMS, "updating value for %s(%p)",GST_DPARAM_NAME (dparam),dparam);
|
2002-03-04 18:54:20 +00:00
|
|
|
|
|
|
|
switch (G_VALUE_TYPE(value)) {
|
|
|
|
case G_TYPE_FLOAT:
|
|
|
|
g_value_set_float(value, dparam->value_float);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case G_TYPE_INT:
|
|
|
|
g_value_set_int(value, dparam->value_int);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case G_TYPE_INT64:
|
|
|
|
g_value_set_int64(value, dparam->value_int64);
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
GST_DPARAM_READY_FOR_UPDATE(dparam) = FALSE;
|
2002-05-05 15:39:37 +00:00
|
|
|
GST_DPARAM_LAST_UPDATE_TIMESTAMP(dparam) = timestamp;
|
|
|
|
GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam) = timestamp;
|
2002-03-04 18:54:20 +00:00
|
|
|
|
|
|
|
GST_DPARAM_UNLOCK(dparam);
|
|
|
|
}
|
|
|
|
|
2001-12-23 17:27:58 +00:00
|
|
|
static void
|
|
|
|
gst_dparam_dispose (GObject *object)
|
|
|
|
{
|
|
|
|
GstDParam *dparam = GST_DPARAM(object);
|
|
|
|
gchar *dparam_name = g_strdup(GST_DPARAM_NAME(dparam));
|
|
|
|
|
|
|
|
g_print("disposing of %s\n", dparam_name);
|
|
|
|
if (GST_DPARAM_MANAGER(dparam)){
|
|
|
|
gst_dpman_detach_dparam(GST_DPARAM_MANAGER(dparam), dparam_name);
|
|
|
|
}
|
|
|
|
g_free(dparam_name);
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* gst_dparam_attach
|
|
|
|
* @dparam: GstDParam instance
|
|
|
|
* @manager: the GstDParamManager that this dparam belongs to
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
void
|
2002-04-14 10:08:21 +00:00
|
|
|
gst_dparam_attach (GstDParam *dparam, GstDParamManager *manager, GParamSpec *param_spec, gchar *unit_name)
|
2001-12-23 17:27:58 +00:00
|
|
|
{
|
|
|
|
|
|
|
|
g_return_if_fail (dparam != NULL);
|
|
|
|
g_return_if_fail (GST_IS_DPARAM (dparam));
|
|
|
|
g_return_if_fail (manager != NULL);
|
|
|
|
g_return_if_fail (GST_IS_DPMAN (manager));
|
2002-03-04 18:54:20 +00:00
|
|
|
g_return_if_fail (param_spec != NULL);
|
2002-04-14 10:08:21 +00:00
|
|
|
g_return_if_fail (unit_name != NULL);
|
2002-03-04 18:54:20 +00:00
|
|
|
g_return_if_fail (G_IS_PARAM_SPEC (param_spec));
|
|
|
|
|
|
|
|
GST_DPARAM_NAME(dparam) = g_param_spec_get_name(param_spec);
|
|
|
|
GST_DPARAM_PARAM_SPEC(dparam) = param_spec;
|
2001-12-23 17:27:58 +00:00
|
|
|
GST_DPARAM_MANAGER(dparam) = manager;
|
2002-04-14 10:08:21 +00:00
|
|
|
GST_DPARAM_UNIT_NAME(dparam) = unit_name;
|
|
|
|
GST_DPARAM_IS_LOG(dparam) = gst_unitconv_unit_is_logarithmic(unit_name);
|
2002-03-24 22:07:09 +00:00
|
|
|
GST_DEBUG(GST_CAT_PARAMS, "attaching %s to dparam %p",GST_DPARAM_NAME (dparam),dparam);
|
2002-03-04 18:54:20 +00:00
|
|
|
|
2001-12-23 17:27:58 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* gst_dparam_detach
|
|
|
|
* @dparam: GstDParam instance
|
|
|
|
* @manager: the GstDParamManager that this dparam belongs to
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
gst_dparam_detach (GstDParam *dparam)
|
|
|
|
{
|
|
|
|
|
|
|
|
g_return_if_fail (dparam != NULL);
|
|
|
|
g_return_if_fail (GST_IS_DPARAM (dparam));
|
2002-03-04 18:54:20 +00:00
|
|
|
|
2002-03-24 22:07:09 +00:00
|
|
|
GST_DEBUG(GST_CAT_PARAMS, "detaching %s from dparam %p",GST_DPARAM_NAME (dparam),dparam);
|
2001-12-23 17:27:58 +00:00
|
|
|
|
|
|
|
GST_DPARAM_NAME(dparam) = NULL;
|
2002-03-04 18:54:20 +00:00
|
|
|
GST_DPARAM_PARAM_SPEC(dparam) = NULL;
|
2001-12-23 17:27:58 +00:00
|
|
|
GST_DPARAM_MANAGER(dparam) = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|