gstreamer/libs/control/gstdparammanager.c

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/* GStreamer
* Copyright (C) 2001 Steve Baker <stevebaker_org@yahoo.co.uk>
*
* gstdparammanager.c: Dynamic Parameter group 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 "gstdparammanager.h"
#include <gst/gstelement.h>
#include <gst/gstinfo.h>
static GHashTable *_element_registry;
static void gst_dpman_class_init (GstDParamManagerClass *klass);
static void gst_dpman_init (GstDParamManager *dpman);
static void gst_dpman_dispose (GObject *object);
static GstDParamWrapper* gst_dpman_new_wrapper(GstDParamManager *dpman, gchar *dparam_name, GType type, GstDPMUpdateMethod update_method);
static GstDParamWrapper* gst_dpman_get_wrapper(GstDParamManager *dpman, gchar *dparam_name);
static void gst_dpman_state_change (GstElement *element, gint state, GstDParamManager *dpman);
static void gst_dpman_caps_changed (GstPad *pad, GstCaps *caps, GstDParamManager *dpman);
static guint gst_dpman_preprocess_synchronous(GstDParamManager *dpman, guint frames, gint64 timestamp);
static guint gst_dpman_preprocess_noop(GstDParamManager *dpman, guint frames, gint64 timestamp);
static guint gst_dpman_process_noop(GstDParamManager *dpman, guint frame_count);
void
_gst_dpman_initialize()
{
_element_registry = g_hash_table_new(NULL,NULL);
}
GType
gst_dpman_get_type (void)
{
static GType dpman_type = 0;
if (!dpman_type) {
static const GTypeInfo dpman_info = {
sizeof(GstDParamManagerClass),
NULL,
NULL,
(GClassInitFunc)gst_dpman_class_init,
NULL,
NULL,
sizeof(GstDParamManager),
0,
(GInstanceInitFunc)gst_dpman_init,
};
dpman_type = g_type_register_static(GST_TYPE_OBJECT, "GstDParamManager", &dpman_info, 0);
}
return dpman_type;
}
static void
gst_dpman_class_init (GstDParamManagerClass *klass)
{
GstObjectClass *gstobject_class;
GObjectClass *gobject_class;
gstobject_class = (GstObjectClass*) klass;
gobject_class = (GObjectClass*) klass;
gobject_class->dispose = gst_dpman_dispose;
klass->modes = g_hash_table_new(g_str_hash,g_str_equal);
gst_dpman_register_mode (klass, "synchronous",
gst_dpman_preprocess_synchronous, gst_dpman_process_noop, NULL, NULL);
gst_dpman_register_mode (klass, "asynchronous",
gst_dpman_preprocess_noop, gst_dpman_process_noop, NULL, NULL);
gst_dpman_register_mode (klass, "disabled",
gst_dpman_preprocess_noop, gst_dpman_process_noop, NULL, NULL);
}
static void
gst_dpman_init (GstDParamManager *dpman)
{
GST_DPMAN_DPARAMS(dpman) = g_hash_table_new(g_str_hash,g_str_equal);
GST_DPMAN_DPARAMS_LIST(dpman) = NULL;
GST_DPMAN_NAME(dpman) = NULL;
GST_DPMAN_PARENT(dpman) = NULL;
GST_DPMAN_MODE_NAME(dpman) = NULL;
GST_DPMAN_MODE(dpman) = NULL;
GST_DPMAN_MODE_DATA(dpman) = NULL;
GST_DPMAN_RATE(dpman) = 0;
}
/**
* gst_dpman_new:
* @name: name of the GstDParamManager instance
* @parent: element which created this instance
*
* Returns: a new instance of GstDParamManager
*/
GstDParamManager*
gst_dpman_new (gchar *name, GstElement *parent)
{
GstDParamManager *dpman;
g_return_val_if_fail (name != NULL, NULL);
dpman = g_object_new (gst_dpman_get_type (), NULL);
gst_object_set_name (GST_OBJECT (dpman), name);
gst_dpman_set_parent(dpman, parent);
gst_dpman_set_mode(dpman, "disabled");
return dpman;
}
static void
gst_dpman_dispose (GObject *object)
{
GstDParamManager *dpman = GST_DPMAN(object);
}
/**
* gst_dpman_add_required_dparam_callback:
* @dpman: GstDParamManager instance
* @dparam_name: a parameter name unique to this GstDParamManager
* @type: the GValue type that this parameter will store
* @update_func: callback to update the element with the new value
* @update_data: will be included in the call to update_func
*
* Returns: true if it was successfully added
*/
gboolean
gst_dpman_add_required_dparam_callback (GstDParamManager *dpman,
gchar *dparam_name,
GType type,
GstDPMUpdateFunction update_func,
gpointer update_data)
{
GstDParamWrapper* dpwrap;
g_return_val_if_fail (dpman != NULL, FALSE);
g_return_val_if_fail (GST_IS_DPMAN (dpman), FALSE);
g_return_val_if_fail (update_func != NULL, FALSE);
dpwrap = gst_dpman_new_wrapper(dpman, dparam_name, type, GST_DPMAN_CALLBACK);
g_return_val_if_fail (dpwrap != NULL, FALSE);
GST_DEBUG(GST_CAT_PARAMS,"adding required callback dparam '%s' of type %s\n", dparam_name, g_type_name(type));
dpwrap->update_func = update_func;
dpwrap->update_data = update_data;
return TRUE;
}
/**
* gst_dpman_add_required_dparam_direct:
* @dpman: GstDParamManager instance
* @dparam_name: a parameter name unique to this GstDParamManager
* @type: the GValue type that this parameter will store
* @update_data: pointer to the member to be updated
*
* Returns: true if it was successfully added
*/
gboolean
gst_dpman_add_required_dparam_direct (GstDParamManager *dpman,
gchar *dparam_name,
GType type,
gpointer update_data)
{
GstDParamWrapper* dpwrap;
g_return_val_if_fail (dpman != NULL, FALSE);
g_return_val_if_fail (GST_IS_DPMAN (dpman), FALSE);
g_return_val_if_fail (update_data != NULL, FALSE);
dpwrap = gst_dpman_new_wrapper(dpman, dparam_name, type, GST_DPMAN_DIRECT);
g_return_val_if_fail (dpwrap != NULL, FALSE);
GST_DEBUG(GST_CAT_PARAMS,"adding required direct dparam '%s' of type %s\n", dparam_name, g_type_name(type));
dpwrap->update_data = update_data;
return TRUE;
}
/**
* gst_dpman_add_required_dparam_array:
* @dpman: GstDParamManager instance
* @dparam_name: a parameter name unique to this GstDParamManager
* @type: the GValue type that this parameter will store
* @update_data: pointer to where the array will be stored
*
* Returns: true if it was successfully added
*/
gboolean
gst_dpman_add_required_dparam_array (GstDParamManager *dpman,
gchar *dparam_name,
GType type,
gpointer update_data)
{
GstDParamWrapper* dpwrap;
g_return_val_if_fail (dpman != NULL, FALSE);
g_return_val_if_fail (GST_IS_DPMAN (dpman), FALSE);
g_return_val_if_fail (update_data != NULL, FALSE);
dpwrap = gst_dpman_new_wrapper(dpman, dparam_name, type, GST_DPMAN_ARRAY);
g_return_val_if_fail (dpwrap != NULL, FALSE);
GST_DEBUG(GST_CAT_PARAMS,"adding required array dparam '%s' of type %s\n", dparam_name, g_type_name(type));
dpwrap->update_data = update_data;
return TRUE;
}
/**
* gst_dpman_remove_required_dparam:
* @dpman: GstDParamManager instance
* @dparam_name: the name of an existing parameter
*
*/
void
gst_dpman_remove_required_dparam (GstDParamManager *dpman, gchar *dparam_name)
{
GstDParamWrapper* dpwrap;
g_return_if_fail (dpman != NULL);
g_return_if_fail (GST_IS_DPMAN (dpman));
g_return_if_fail (dparam_name != NULL);
dpwrap = gst_dpman_get_wrapper(dpman, dparam_name);
g_return_if_fail(dpwrap != NULL);
g_return_if_fail(dpwrap->dparam == NULL);
GST_DEBUG(GST_CAT_PARAMS, "removing required dparam: %s\n", dparam_name);
g_hash_table_remove(GST_DPMAN_DPARAMS(dpman), dparam_name);
GST_DPMAN_DPARAMS_LIST(dpman) = g_slist_remove(GST_DPMAN_DPARAMS_LIST(dpman), dpwrap);
g_free(dpwrap->value);
g_free(dpwrap);
}
/**
* gst_dpman_attach_dparam:
* @dpman: GstDParamManager instance
* @dparam_name: a name previously added with gst_dpman_add_required_dparam
* @dparam: GstDParam instance to attach
*
* Returns: true if it was successfully attached
*/
gboolean
gst_dpman_attach_dparam (GstDParamManager *dpman, gchar *dparam_name, GstDParam *dparam)
{
GstDParamWrapper* dpwrap;
g_return_val_if_fail (dpman != NULL, FALSE);
g_return_val_if_fail (GST_IS_DPMAN (dpman), FALSE);
g_return_val_if_fail (dparam_name != NULL, FALSE);
g_return_val_if_fail (dparam != NULL, FALSE);
g_return_val_if_fail (GST_IS_DPARAM (dparam), FALSE);
g_return_val_if_fail (dparam != NULL, FALSE);
dpwrap = gst_dpman_get_wrapper(dpman, dparam_name);
g_return_val_if_fail(dpwrap != NULL, FALSE);
g_return_val_if_fail(dpwrap->value != NULL, FALSE);
dpwrap->dparam = dparam;
gst_dparam_attach(dparam, dpman, dpwrap->value, dpwrap->spec);
return TRUE;
}
/**
* gst_dpman_detach_dparam:
* @dpman: GstDParamManager instance
* @dparam_name: the name of a parameter with a previously attached GstDParam
*
*/
void
gst_dpman_detach_dparam (GstDParamManager *dpman, gchar *dparam_name)
{
GstDParamWrapper* dpwrap;
g_return_if_fail (dpman != NULL);
g_return_if_fail (GST_IS_DPMAN (dpman));
g_return_if_fail (dparam_name != NULL);
dpwrap = gst_dpman_get_wrapper(dpman, dparam_name);
g_return_if_fail(dpwrap);
gst_dparam_detach(dpwrap->dparam);
dpwrap->dparam = NULL;
}
/**
* gst_dpman_get_dparam:
* @dpman: GstDParamManager instance
* @name: the name of an existing dparam instance
*
* Returns: the dparam with the given name - or NULL otherwise
*/
GstDParam *
gst_dpman_get_dparam (GstDParamManager *dpman, gchar *name)
{
GstDParamWrapper* dpwrap;
g_return_val_if_fail (dpman != NULL, NULL);
g_return_val_if_fail (GST_IS_DPMAN (dpman), NULL);
g_return_val_if_fail (name != NULL, NULL);
dpwrap = g_hash_table_lookup(GST_DPMAN_DPARAMS(dpman), name);
g_return_val_if_fail (dpwrap != NULL, NULL);
return dpwrap->dparam;
}
/**
* gst_dpman_get_dparam_type:
* @dpman: GstDParamManager instance
* @name: the name of dparam
*
* Returns: the type that this dparam requires/uses
*/
GType
gst_dpman_get_dparam_type (GstDParamManager *dpman, gchar *name)
{
GstDParamWrapper* dpwrap;
g_return_val_if_fail (dpman != NULL, 0);
g_return_val_if_fail (GST_IS_DPMAN (dpman), 0);
g_return_val_if_fail (name != NULL, 0);
dpwrap = g_hash_table_lookup(GST_DPMAN_DPARAMS(dpman), name);
g_return_val_if_fail (dpwrap != NULL, 0);
return G_VALUE_TYPE(dpwrap->value);
}
GstDParamSpec**
gst_dpman_list_dparam_specs(GstDParamManager *dpman)
{
GstDParamWrapper* dpwrap;
GSList *dpwraps;
GstDParamSpec** dparam_specs;
guint x = 0;
g_return_val_if_fail (dpman != NULL, NULL);
g_return_val_if_fail (GST_IS_DPMAN (dpman), NULL);
dpwraps = GST_DPMAN_DPARAMS_LIST(dpman);
dparam_specs = g_new0(GstDParamSpec*, g_slist_length(dpwraps) + 1);
while (dpwraps){
dpwrap = (GstDParamWrapper*)dpwraps->data;
dparam_specs[x++] = dpwrap->spec;
dpwraps = g_slist_next(dpwraps);
}
return dparam_specs;
}
GstDParamSpec*
gst_dpman_get_dparam_spec (GstDParamManager *dpman, gchar *dparam_name)
{
GstDParamWrapper* dpwrap;
g_return_val_if_fail (dpman != NULL, NULL);
g_return_val_if_fail (GST_IS_DPMAN (dpman), NULL);
g_return_val_if_fail (dparam_name != NULL, NULL);
dpwrap = gst_dpman_get_wrapper(dpman, dparam_name);
return dpwrap->spec;
}
void
gst_dpman_dparam_spec_has_changed (GstDParamManager *dpman, gchar *dparam_name)
{
}
/**
* gst_dpman_register_mode
* @klass: GstDParamManagerClass class instance
* @modename: the unique name of the new mode
* @preprocessfunc: the function which will be called before each buffer is processed
* @processfunc: the function which may be called throughout the processing of a buffer
* @setupfunc: the function which initialises the mode when activated
* @teardownfunc: the function which frees any resources the mode uses
*
*/
void
gst_dpman_register_mode (GstDParamManagerClass *klass,
gchar *modename,
GstDPMModePreProcessFunction preprocessfunc,
GstDPMModeProcessFunction processfunc,
GstDPMModeSetupFunction setupfunc,
GstDPMModeTeardownFunction teardownfunc)
{
GstDPMMode *mode;
g_return_if_fail (klass != NULL);
g_return_if_fail (modename != NULL);
g_return_if_fail (GST_IS_DPMAN_CLASS (klass));
mode = g_new0(GstDPMMode,1);
mode->preprocessfunc = preprocessfunc;
mode->processfunc = processfunc;
mode->setupfunc = setupfunc;
mode->teardownfunc = teardownfunc;
g_hash_table_insert(klass->modes, modename, mode);
GST_DEBUG(GST_CAT_PARAMS, "mode '%s' registered\n", modename);
}
/**
* gst_dpman_set_mode
* @dpman: GstDParamManager instance
* @modename: the name of the mode to use
*
* Returns: TRUE if the mode was set, FALSE otherwise
*/
gboolean
gst_dpman_set_mode(GstDParamManager *dpman, gchar *modename)
{
GstDPMMode *mode=NULL;
GstDParamManagerClass *oclass;
g_return_val_if_fail (dpman != NULL, FALSE);
g_return_val_if_fail (GST_IS_DPMAN (dpman), FALSE);
g_return_val_if_fail (modename != NULL, FALSE);
oclass = (GstDParamManagerClass*)(G_OBJECT_GET_CLASS(dpman));
mode = g_hash_table_lookup(oclass->modes, modename);
g_return_val_if_fail (mode != NULL, FALSE);
if (GST_DPMAN_MODE(dpman) == mode) {
GST_DEBUG(GST_CAT_PARAMS, "mode %s already set\n", modename);
return TRUE;
}
GST_DEBUG(GST_CAT_PARAMS, "setting mode to %s\n", modename);
if (GST_DPMAN_MODE(dpman) && GST_DPMAN_TEARDOWNFUNC(dpman)){
GST_DPMAN_TEARDOWNFUNC(dpman)(dpman);
}
GST_DPMAN_MODE(dpman) = mode;
if (GST_DPMAN_SETUPFUNC(dpman)){
GST_DPMAN_SETUPFUNC(dpman)(dpman);
}
return TRUE;
}
/**
* gst_dpman_set_parent
* @dpman: GstDParamManager instance
* @parent: the element that this GstDParamManager belongs to
*
*/
void
gst_dpman_set_parent (GstDParamManager *dpman, GstElement *parent)
{
g_return_if_fail (dpman != NULL);
g_return_if_fail (GST_IS_DPMAN (dpman));
g_return_if_fail (parent != NULL);
g_return_if_fail (GST_IS_ELEMENT (parent));
g_hash_table_insert(_element_registry, parent, dpman);
gst_object_set_parent (GST_OBJECT (dpman), GST_OBJECT(parent));
g_signal_connect(G_OBJECT(parent), "state_change",
G_CALLBACK (gst_dpman_state_change), dpman);
}
/**
* gst_dpman_get_manager
* @parent: the element that the desired GstDParamManager belongs to
*
* Returns: the GstDParamManager which belongs to this element or NULL
* if it doesn't exist
*/
GstDParamManager *
gst_dpman_get_manager (GstElement *parent)
{
GstDParamManager *dpman;
g_return_val_if_fail (parent != NULL, NULL);
g_return_val_if_fail (GST_IS_ELEMENT (parent), NULL);
dpman = (GstDParamManager*)g_hash_table_lookup(_element_registry, parent);
return dpman;
}
/**
* gst_dpman_set_rate_change_pad
* @dpman: GstDParamManager instance
* @pad: the pad which may have a "rate" caps property
*
*/
void
gst_dpman_set_rate_change_pad(GstDParamManager *dpman, GstPad *pad)
{
g_return_if_fail (dpman != NULL);
g_return_if_fail (GST_IS_DPMAN (dpman));
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_signal_connect(G_OBJECT(pad), "caps_changed",
G_CALLBACK (gst_dpman_caps_changed), dpman);
}
static GstDParamWrapper*
gst_dpman_get_wrapper(GstDParamManager *dpman, gchar *dparam_name)
{
g_return_val_if_fail (dpman != NULL, NULL);
g_return_val_if_fail (GST_IS_DPMAN (dpman), NULL);
g_return_val_if_fail (dparam_name != NULL, NULL);
return g_hash_table_lookup(GST_DPMAN_DPARAMS(dpman), dparam_name);
}
static GstDParamWrapper*
gst_dpman_new_wrapper(GstDParamManager *dpman, gchar *dparam_name, GType type, GstDPMUpdateMethod update_method)
{
GstDParamWrapper* dpwrap;
g_return_val_if_fail (dpman != NULL, NULL);
g_return_val_if_fail (GST_IS_DPMAN (dpman), NULL);
g_return_val_if_fail (dparam_name != NULL, NULL);
g_return_val_if_fail(gst_dpman_get_wrapper(dpman, dparam_name) == NULL, NULL);
dpwrap = g_new0(GstDParamWrapper,1);
dpwrap->update_method = update_method;
dpwrap->value = g_new0(GValue,1);
g_value_init(dpwrap->value, type);
dpwrap->spec = g_new0(GstDParamSpec,1);
dpwrap->spec->dparam_name = dparam_name;
dpwrap->spec->min_val = g_new0(GValue,1);
dpwrap->spec->max_val = g_new0(GValue,1);
dpwrap->spec->default_val = g_new0(GValue,1);
g_value_init(dpwrap->spec->min_val, type);
g_value_init(dpwrap->spec->max_val, type);
g_value_init(dpwrap->spec->default_val, type);
g_hash_table_insert(GST_DPMAN_DPARAMS(dpman), dparam_name, dpwrap);
GST_DPMAN_DPARAMS_LIST(dpman) = g_slist_append(GST_DPMAN_DPARAMS_LIST(dpman), dpwrap);
return dpwrap;
}
static void
gst_dpman_state_change (GstElement *element, gint state, GstDParamManager *dpman)
{
GSList *dwraps;
GstDParam *dparam;
GstDParamWrapper *dpwrap;
g_return_if_fail (dpman != NULL);
g_return_if_fail (GST_IS_DPMAN (dpman));
if (state == GST_STATE_PLAYING){
GST_DEBUG(GST_CAT_PARAMS, "initialising params\n");
// force all params to be updated
dwraps = GST_DPMAN_DPARAMS_LIST(dpman);
while (dwraps){
dpwrap = (GstDParamWrapper*)dwraps->data;
dparam = dpwrap->dparam;
if (dparam){
GST_DPARAM_READY_FOR_UPDATE(dparam) = TRUE;
if (dparam->spec){
g_value_copy(dparam->spec->default_val, GST_DPARAM_VALUE(dparam));
}
}
dwraps = g_slist_next(dwraps);
}
}
}
static void
gst_dpman_caps_changed (GstPad *pad, GstCaps *caps, GstDParamManager *dpman)
{
g_return_if_fail (caps != NULL);
g_return_if_fail (dpman != NULL);
g_return_if_fail (GST_IS_DPMAN (dpman));
GST_DPMAN_RATE(dpman) = gst_caps_get_int (caps, "rate");
GST_DEBUG(GST_CAT_PARAMS, "got caps change %d\n", GST_DPMAN_RATE(dpman));
}
static guint
gst_dpman_preprocess_synchronous(GstDParamManager *dpman, guint frames, gint64 timestamp)
{
GSList *dwraps;
GstDParam *dparam;
GstDParamWrapper *dpwrap;
guint x;
g_return_val_if_fail (dpman != NULL, frames);
g_return_val_if_fail (GST_IS_DPMAN (dpman), frames);
// now check whether any passive dparams are ready for an update
dwraps = GST_DPMAN_DPARAMS_LIST(dpman);
while (dwraps){
dpwrap = (GstDParamWrapper*)dwraps->data;
dparam = dpwrap->dparam;
if (dparam && (GST_DPARAM_READY_FOR_UPDATE(dparam) &&
(GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam) <= timestamp))){
// this will make dpwrap->value contain the latest value.
// now we just need to get it to the element
GST_DPARAM_DO_UPDATE(dparam, timestamp);
switch (dpwrap->update_method) {
// direct method - set the value directly in the struct of the element
case GST_DPMAN_DIRECT:
GST_DEBUG(GST_CAT_PARAMS, "doing direct update\n");
switch (G_VALUE_TYPE(dpwrap->value)){
case G_TYPE_CHAR:
*(gchar*)dpwrap->update_data = g_value_get_char(dpwrap->value);
break;
case G_TYPE_UCHAR:
*(guchar*)dpwrap->update_data = g_value_get_uchar(dpwrap->value);
break;
case G_TYPE_BOOLEAN:
*(gboolean*)dpwrap->update_data = g_value_get_boolean(dpwrap->value);
break;
case G_TYPE_INT:
*(gint*)dpwrap->update_data = g_value_get_int(dpwrap->value);
break;
case G_TYPE_UINT:
*(guint*)dpwrap->update_data = g_value_get_uint(dpwrap->value);
break;
case G_TYPE_LONG:
*(glong*)dpwrap->update_data = g_value_get_long(dpwrap->value);
break;
case G_TYPE_ULONG:
*(gulong*)dpwrap->update_data = g_value_get_ulong(dpwrap->value);
break;
case G_TYPE_FLOAT:
*(gfloat*)dpwrap->update_data = g_value_get_float(dpwrap->value);
break;
case G_TYPE_DOUBLE:
*(gdouble*)dpwrap->update_data = g_value_get_double(dpwrap->value);
break;
case G_TYPE_POINTER:
*(gpointer*)dpwrap->update_data = g_value_get_pointer(dpwrap->value);
break;
default:
break;
}
break;
// callback method - call the element's callback so it can do what it likes
case GST_DPMAN_CALLBACK:
GST_DEBUG(GST_CAT_PARAMS, "doing callback update\n");
GST_DPMAN_DO_UPDATE(dpwrap);
break;
// array method - generate an array of the right size
// with each value being the same (in synchronous update mode)
case GST_DPMAN_ARRAY:
GST_DEBUG(GST_CAT_PARAMS, "doing array update\n");
switch (G_VALUE_TYPE(dpwrap->value)){
case G_TYPE_CHAR:
(gchar*)dpwrap->update_data = g_new(gchar, frames);
*(gchar*)dpwrap->update_data = g_value_get_char(dpwrap->value);
for (x = 1 ; x < frames ; x++)
((gchar*)dpwrap->update_data)[x] = *(gchar*)dpwrap->update_data;
break;
case G_TYPE_UCHAR:
(guchar*)dpwrap->update_data = g_new(guchar, frames);
*(guchar*)dpwrap->update_data = g_value_get_uchar(dpwrap->value);
for (x = 1 ; x < frames ; x++)
((guchar*)dpwrap->update_data)[x] = *(guchar*)dpwrap->update_data;
break;
case G_TYPE_BOOLEAN:
(gboolean*)dpwrap->update_data = g_new(gboolean, frames);
*(gboolean*)dpwrap->update_data = g_value_get_boolean(dpwrap->value);
for (x = 1 ; x < frames ; x++)
((gboolean*)dpwrap->update_data)[x] = *(gboolean*)dpwrap->update_data;
break;
case G_TYPE_INT:
(gint*)dpwrap->update_data = g_new(gint, frames);
*(gint*)dpwrap->update_data = g_value_get_int(dpwrap->value);
for (x = 1 ; x < frames ; x++)
((gint*)dpwrap->update_data)[x] = *(gint*)dpwrap->update_data;
break;
case G_TYPE_UINT:
(guint*)dpwrap->update_data = g_new(guint, frames);
*(guint*)dpwrap->update_data = g_value_get_uint(dpwrap->value);
for (x = 1 ; x < frames ; x++)
((guint*)dpwrap->update_data)[x] = *(guint*)dpwrap->update_data;
break;
case G_TYPE_LONG:
(glong*)dpwrap->update_data = g_new(glong, frames);
*(glong*)dpwrap->update_data = g_value_get_long(dpwrap->value);
for (x = 1 ; x < frames ; x++)
((glong*)dpwrap->update_data)[x] = *(glong*)dpwrap->update_data;
break;
case G_TYPE_ULONG:
(gulong*)dpwrap->update_data = g_new(gulong, frames);
*(gulong*)dpwrap->update_data = g_value_get_ulong(dpwrap->value);
for (x = 1 ; x < frames ; x++)
((gulong*)dpwrap->update_data)[x] = *(gulong*)dpwrap->update_data;
break;
case G_TYPE_FLOAT:
(gfloat*)dpwrap->update_data = g_new(gfloat, frames);
*(gfloat*)dpwrap->update_data = g_value_get_float(dpwrap->value);
for (x = 1 ; x < frames ; x++)
((gfloat*)dpwrap->update_data)[x] = *(gfloat*)dpwrap->update_data;
break;
case G_TYPE_DOUBLE:
(gdouble*)dpwrap->update_data = g_new(gdouble, frames);
*(gdouble*)dpwrap->update_data = g_value_get_double(dpwrap->value);
for (x = 1 ; x < frames ; x++)
((gdouble*)dpwrap->update_data)[x] = *(gdouble*)dpwrap->update_data;
break;
case G_TYPE_POINTER:
(gpointer*)dpwrap->update_data = g_new(gpointer, frames);
*(gpointer*)dpwrap->update_data = g_value_get_pointer(dpwrap->value);
for (x = 1 ; x < frames ; x++)
((gpointer*)dpwrap->update_data)[x] = *(gpointer*)dpwrap->update_data;
break;
default:
break;
}
break;
default:
break;
}
}
dwraps = g_slist_next(dwraps);
}
return frames;
}
static guint
gst_dpman_preprocess_noop(GstDParamManager *dpman, guint frames, gint64 timestamp)
{
return frames;
}
static guint
gst_dpman_process_noop(GstDParamManager *dpman, guint frame_count)
{
return 0;
}