+++ /dev/null
-/* 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 "gst_private.h"
-
-#include "gstdparam.h"
-#include "gstdparammanager.h"
-
-static void gst_dparam_class_init (GstDParamClass *klass);
-static void gst_dparam_init (GstDParam *dparam);
-
-static void gst_dparam_do_update_realtime (GstDParam *dparam, gint64 timestamp);
-static GValue** gst_dparam_get_point_realtime (GstDParam *dparam, gint64 timestamp);
-
-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;
-
- //gstobject_class->save_thyself = gst_dparam_save_thyself;
-
-}
-
-static void
-gst_dparam_init (GstDParam *dparam)
-{
- g_return_if_fail (dparam != NULL);
- GST_DPARAM_VALUE(dparam) = NULL;
- GST_DPARAM_TYPE(dparam) = 0;
- GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam)=0LL;
- GST_DPARAM_LAST_UPDATE_TIMESTAMP(dparam)=0LL;
- 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);
- dparam->do_update_func = gst_dparam_do_update_realtime;
- dparam->get_point_func = gst_dparam_get_point_realtime;
-
- dparam->point = gst_dparam_new_value_array(type, 0);
- GST_DPARAM_TYPE(dparam) = type;
-
- return dparam;
-}
-
-/**
- * gst_dparam_attach
- * @dparam: GstDParam instance
- * @parent: the GstDParamManager that this dparam belongs to
- *
- */
-void
-gst_dparam_attach (GstDParam *dparam, GstObject *parent, GValue *value, GstDParamSpec *spec)
-{
-
- g_return_if_fail (dparam != NULL);
- g_return_if_fail (GST_IS_DPARAM (dparam));
- g_return_if_fail (GST_DPARAM_PARENT (dparam) == NULL);
- g_return_if_fail (parent != NULL);
- g_return_if_fail (G_IS_OBJECT (parent));
- g_return_if_fail (GST_IS_DPMAN (parent));
- g_return_if_fail ((gpointer)dparam != (gpointer)parent);
- g_return_if_fail (value != NULL);
- g_return_if_fail (spec != NULL);
- g_return_if_fail (GST_DPARAM_TYPE(dparam) == G_VALUE_TYPE(value));
-
- GST_DPARAM_NAME(dparam) = spec->dparam_name;
- GST_DPARAM_VALUE(dparam) = value;
- GST_DPARAM_SPEC(dparam) = spec;
- gst_object_set_parent (GST_OBJECT (dparam), parent);
-}
-
-/**
- * gst_dparam_new_value_array
- * @type: the type of the first GValue in the array
- * @...: the type of other GValues in the array
- *
- * The list of types should be terminated with a 0.
- * If the type of a value is not yet known then use G_TYPE_NONE .
- *
- * Returns: an newly created array of GValues
- */
-GValue**
-gst_dparam_new_value_array(GType type, ...)
-{
- GValue **point;
- GValue *value;
- guint x;
- guint values_length = 0;
- va_list var_args;
- GType each_type;
-
- va_start (var_args, type);
- each_type = type;
- while (each_type){
- values_length++;
- each_type = va_arg (var_args, GType);
- }
- va_end (var_args);
-
- point = g_new0(GValue*,values_length + 1);
-
- va_start (var_args, type);
- each_type = type;
- for (x=0 ; x < values_length ; x++){
- value = g_new0(GValue,1);
- if (each_type != G_TYPE_NONE){
- g_value_init(value, each_type);
- }
- point[x] = value;
- each_type = va_arg (var_args, GType);
- }
- point[values_length] = NULL;
- va_end (var_args);
-
- GST_DEBUG(GST_CAT_PARAMS, "array with %d values created\n", values_length);
-
- return point;
-}
-
-void
-gst_dparam_set_value_from_string(GValue *value, const gchar *value_str)
-{
-
- g_return_if_fail(value != NULL);
- g_return_if_fail(value_str != NULL);
-
- GST_DEBUG(GST_CAT_PARAMS, "parsing '%s' to type %s\n", value_str, g_type_name(G_VALUE_TYPE(value)));
-
- switch (G_VALUE_TYPE(value)) {
- case G_TYPE_STRING:
- g_value_set_string(value, g_strdup(value_str));
- break;
- case G_TYPE_ENUM:
- case G_TYPE_INT: {
- gint i;
- sscanf (value_str, "%d", &i);
- g_value_set_int(value, i);
- break;
- }
- case G_TYPE_UINT: {
- guint i;
- sscanf (value_str, "%u", &i);
- g_value_set_uint(value, i);
- break;
- }
- case G_TYPE_LONG: {
- glong i;
- sscanf (value_str, "%ld", &i);
- g_value_set_long(value, i);
- break;
- }
- case G_TYPE_ULONG: {
- gulong i;
- sscanf (value_str, "%lu", &i);
- g_value_set_ulong(value, i);
- break;
- }
- case G_TYPE_BOOLEAN: {
- gboolean i = FALSE;
- if (!strncmp ("true", value_str, 4)) i = TRUE;
- g_value_set_boolean(value, i);
- break;
- }
- case G_TYPE_CHAR: {
- gchar i;
- sscanf (value_str, "%c", &i);
- g_value_set_char(value, i);
- break;
- }
- case G_TYPE_UCHAR: {
- guchar i;
- sscanf (value_str, "%c", &i);
- g_value_set_uchar(value, i);
- break;
- }
- case G_TYPE_FLOAT: {
- gfloat i;
- sscanf (value_str, "%f", &i);
- g_value_set_float(value, i);
- break;
- }
- case G_TYPE_DOUBLE: {
- gfloat i;
- sscanf (value_str, "%g", &i);
- g_value_set_double(value, (gdouble)i);
- break;
- }
- default:
- break;
- }
-}
-
-static void
-gst_dparam_do_update_realtime (GstDParam *dparam, gint64 timestamp)
-{
- GST_DPARAM_LOCK(dparam);
- GST_DPARAM_READY_FOR_UPDATE(dparam) = FALSE;
- GST_DEBUG(GST_CAT_PARAMS, "updating value for %s(%p)\n",GST_DPARAM_NAME (dparam),dparam);
- g_value_copy(dparam->point[0], GST_DPARAM_VALUE(dparam));
- GST_DPARAM_UNLOCK(dparam);
-}
-
-static GValue**
-gst_dparam_get_point_realtime (GstDParam *dparam, gint64 timestamp)
-{
- GST_DEBUG(GST_CAT_PARAMS, "getting point for %s(%p)\n",GST_DPARAM_NAME (dparam),dparam);
- return dparam->point;
-}
-
-/**********************
- * GstDParamSmooth
- **********************/
-
-static void gst_dparam_do_update_smooth (GstDParam *dparam, gint64 timestamp);
-static GValue** gst_dparam_get_point_smooth (GstDParam *dparam, gint64 timestamp);
-
-/**
- * gst_dparam_smooth_new:
- * @type: the type that this dparam will store
- *
- * Returns: a new instance of GstDParamSmooth
- */
-GstDParam*
-gst_dparam_smooth_new (GType type)
-{
- GstDParam *dparam;
-
- dparam = g_object_new (gst_dparam_get_type (), NULL);
-
- dparam->do_update_func = gst_dparam_do_update_smooth;
- dparam->get_point_func = gst_dparam_get_point_smooth;
-
- dparam->point = gst_dparam_new_value_array(type, type, G_TYPE_FLOAT, 0);
- GST_DPARAM_TYPE(dparam) = type;
-
- return dparam;
-}
-
-static void
-gst_dparam_do_update_smooth (GstDParam *dparam, gint64 timestamp)
-{
- gint64 time_diff;
- gfloat time_ratio;
-
- time_diff = MIN(GST_DPARAM_DEFAULT_UPDATE_PERIOD(dparam),
- timestamp - GST_DPARAM_LAST_UPDATE_TIMESTAMP(dparam));
-
- time_ratio = (gfloat)time_diff / g_value_get_float(dparam->point[2]);
-
- GST_DPARAM_LOCK(dparam);
-
- GST_DPARAM_LAST_UPDATE_TIMESTAMP(dparam) = GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam);
- while(GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam) <= timestamp){
- GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam) += GST_DPARAM_DEFAULT_UPDATE_PERIOD(dparam);
- }
- GST_DEBUG(GST_CAT_PARAMS, "last:%lld current:%lld next:%lld\n",
- GST_DPARAM_LAST_UPDATE_TIMESTAMP(dparam), timestamp, GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam));
-
-
- switch (G_VALUE_TYPE(GST_DPARAM_VALUE(dparam))){
- case G_TYPE_FLOAT: {
- gfloat current, target, max_change, current_diff, final_val;
-
- target = g_value_get_float(dparam->point[0]);
- current = g_value_get_float(GST_DPARAM_VALUE(dparam));
- max_change = time_ratio * g_value_get_float(dparam->point[1]);
-
- GST_DEBUG(GST_CAT_PARAMS, "target:%f current:%f max_change:%f \n",
- target, current, max_change);
-
- if (dparam->spec->is_log){
- gfloat current_log;
- current_log = log(current);
- current_diff = ABS(current_log - log(target));
- if (current_diff > max_change)
- final_val = (target < current) ? exp(current_log-max_change) : exp(current_log+max_change);
- else
- final_val = target;
- }
- else {
- current_diff = ABS (current - target);
- if (current_diff > max_change)
- final_val = (target < current) ? current-max_change : current+max_change;
- else
- final_val = target;
- }
-
- GST_DPARAM_READY_FOR_UPDATE(dparam) = (current_diff > max_change);
- g_value_set_float(GST_DPARAM_VALUE(dparam), final_val);
-
- break;
- }
- default:
- break;
- }
-
-
- //GST_DEBUG(GST_CAT_PARAMS, "smooth update for %s(%p): %f\n",
- // GST_DPARAM_NAME (dparam),dparam, g_value_get_float(GST_DPARAM_VALUE(dparam)));
-
- GST_DPARAM_UNLOCK(dparam);
-}
-
-static GValue**
-gst_dparam_get_point_smooth (GstDParam *dparam, gint64 timestamp)
-{
- GST_DEBUG(GST_CAT_PARAMS, "getting point for %s(%p)\n",GST_DPARAM_NAME (dparam),dparam);
- return dparam->point;
-}
+++ /dev/null
-/* GStreamer
- * Copyright (C) 2001 Steve Baker <stevebaker_org@yahoo.co.uk>
- *
- * gstdparam.h: 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.
- */
-
-#ifndef __GST_DPARAM_H__
-#define __GST_DPARAM_H__
-
-#include <gst/gstobject.h>
-#include <gst/gstprops.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-#define GST_TYPE_DPARAM (gst_dparam_get_type ())
-#define GST_DPARAM(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_DPARAM,GstDParam))
-#define GST_DPARAM_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DPARAM,GstDParam))
-#define GST_IS_DPARAM(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_DPARAM))
-#define GST_IS_DPARAM_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_DPARAM))
-
-#define GST_DPARAM_NAME(dparam) (GST_OBJECT_NAME(dparam))
-#define GST_DPARAM_PARENT(dparam) (GST_OBJECT_PARENT(dparam))
-#define GST_DPARAM_VALUE(dparam) ((dparam)->value)
-#define GST_DPARAM_SPEC(dparam) ((dparam)->spec)
-#define GST_DPARAM_TYPE(dparam) ((dparam)->type)
-
-#define GST_DPARAM_LOCK(dparam) (g_mutex_lock((dparam)->lock))
-#define GST_DPARAM_UNLOCK(dparam) (g_mutex_unlock((dparam)->lock))
-
-#define GST_DPARAM_READY_FOR_UPDATE(dparam) ((dparam)->ready_for_update)
-#define GST_DPARAM_DEFAULT_UPDATE_PERIOD(dparam) ((dparam)->default_update_period)
-#define GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam) ((dparam)->next_update_timestamp)
-#define GST_DPARAM_LAST_UPDATE_TIMESTAMP(dparam) ((dparam)->last_update_timestamp)
-
-#define GST_DPARAM_GET_POINT(dparam, timestamp) \
- ((dparam->get_point_func)(dparam, timestamp))
-
-#define GST_DPARAM_FIND_POINT(dparam, timestamp, search_flag) \
- ((dparam->find_point_func)(dparam, data, search_flag))
-
-#define GST_DPARAM_DO_UPDATE(dparam, timestamp) \
- ((dparam->do_update_func)(dparam, timestamp))
-
-#define GST_DPARAM_INSERT_POINT(dparam, timestamp) \
- ((dparam->insert_point_func)(dparam, timestamp))
-
-#define GST_DPARAM_REMOVE_POINT(dparam, data) \
- ((dparam->remove_point_func)(dparam, data))
-
-typedef enum {
- GST_DPARAM_CLOSEST,
- GST_DPARAM_CLOSEST_AFTER,
- GST_DPARAM_CLOSEST_BEFORE,
- GST_DPARAM_EXACT,
-} GstDParamSearchFlag;
-
-typedef enum {
- GST_DPARAM_NOT_FOUND = 0,
- GST_DPARAM_FOUND_EXACT,
- GST_DPARAM_FOUND_CLOSEST,
-} GstDParamSearchResult;
-
-typedef struct _GstDParam GstDParam;
-typedef struct _GstDParamClass GstDParamClass;
-typedef struct _GstDParamSpec GstDParamSpec;
-
-typedef GValue** (*GstDParamInsertPointFunction) (GstDParam *dparam, guint64 timestamp);
-typedef void (*GstDParamRemovePointFunction) (GstDParam *dparam, GValue** point);
-typedef GValue** (*GstDParamGetPointFunction) (GstDParam *dparam, gint64 timestamp);
-typedef GstDParamSearchResult (*GstDParamFindPointFunction) (GstDParam *dparam, gint64 *timestamp, GstDParamSearchFlag search_flag);
-
-typedef void (*GstDParamDoUpdateFunction) (GstDParam *dparam, gint64 timestamp);
-
-struct _GstDParam {
- GstObject object;
-
- GstDParamGetPointFunction get_point_func;
- GstDParamFindPointFunction find_point_func;
-
- GstDParamDoUpdateFunction do_update_func;
-
- GstDParamInsertPointFunction insert_point_func;
- GstDParamRemovePointFunction remove_point_func;
-
- GMutex *lock;
- GValue *value;
- GstDParamSpec *spec;
- GValue **point;
- GType type;
- gint64 last_update_timestamp;
- gint64 next_update_timestamp;
- gint64 default_update_period;
- gboolean ready_for_update;
-};
-
-struct _GstDParamClass {
- GstObjectClass parent_class;
-
- /* signal callbacks */
-};
-
-struct _GstDParamSpec {
- gchar *dparam_name;
- gchar *unit_name;
- GValue *min_val;
- GValue *max_val;
- GValue *default_val;
- gboolean is_log;
- gboolean is_rate;
-};
-
-GType gst_dparam_get_type (void);
-GstDParam* gst_dparam_new (GType type);
-void gst_dparam_attach (GstDParam *dparam, GstObject *parent, GValue *value, GstDParamSpec *spec);
-GValue** gst_dparam_new_value_array(GType type, ...);
-void gst_dparam_set_value_from_string(GValue *value, const gchar *value_str);
-
-/**********************
- * GstDParamSmooth
- **********************/
-
-GstDParam* gst_dparam_smooth_new (GType type);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __GST_DPARAM_H__ */
+++ /dev/null
-/* 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 "gst_private.h"
-
-#include "gstdparammanager.h"
-#include <gst/gstelement.h>
-
-
-static void gst_dpman_class_init (GstDParamManagerClass *klass);
-static void gst_dpman_init (GstDParamManager *dpman);
-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);
-
-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;
-
- 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;
-}
-
-/**
- * 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, GST_OBJECT(dpman), dpwrap->value, dpwrap->spec);
-
- return TRUE;
-}
-
-/**
- * gst_dpman_dettach_dparam:
- * @dpman: GstDParamManager instance
- * @dparam_name: the name of a parameter with a previously attached GstDParam
- *
- */
-void
-gst_dpman_dettach_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_VALUE(dpwrap->dparam) = NULL;
- GST_DPARAM_NAME(dpwrap->dparam) = NULL;
- gst_object_unparent (GST_OBJECT(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);
- 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));
-
- 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_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;
-}
-
+++ /dev/null
-/* GStreamer
- * Copyright (C) 2001 Steve Baker <stevebaker_org@yahoo.co.uk>
- *
- * gstdparammanager.h: 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.
- */
-
-#ifndef __GST_DPMAN_H__
-#define __GST_DPMAN_H__
-
-#include <gst/gstobject.h>
-#include <gst/gstdparam.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-#define GST_TYPE_DPMAN (gst_dpman_get_type ())
-#define GST_DPMAN(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_DPMAN,GstDParamManager))
-#define GST_DPMAN_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DPMAN,GstDParamManager))
-#define GST_IS_DPMAN(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_DPMAN))
-#define GST_IS_DPMAN_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_DPMAN))
-
-#define GST_DPMAN_NAME(dpman) (GST_OBJECT_NAME(dpman))
-#define GST_DPMAN_PARENT(dpman) (GST_OBJECT_PARENT(dpman))
-#define GST_DPMAN_DPARAMS(dpman) ((dpman)->dparams)
-#define GST_DPMAN_DPARAMS_LIST(dpman) ((dpman)->dparams_list)
-
-#define GST_DPMAN_MODE_NAME(dpman) ((dpman)->mode_name)
-#define GST_DPMAN_MODE(dpman) ((dpman)->mode)
-#define GST_DPMAN_MODE_DATA(dpman) ((dpman)->mode_data)
-#define GST_DPMAN_RATE(dpman) ((dpman)->rate)
-
-typedef enum {
- GST_DPMAN_CALLBACK,
- GST_DPMAN_DIRECT,
- GST_DPMAN_ARRAY,
-} GstDPMUpdateMethod;
-
-typedef struct _GstDParamManager GstDParamManager;
-typedef struct _GstDParamManagerClass GstDParamManagerClass;
-typedef struct _GstDPMMode GstDPMMode;
-typedef struct _GstDParamWrapper GstDParamWrapper;
-
-typedef guint (*GstDPMModePreProcessFunction) (GstDParamManager *dpman, guint frames, gint64 timestamp);
-typedef guint (*GstDPMModeProcessFunction) (GstDParamManager *dpman, guint frame_count);
-typedef void (*GstDPMModeSetupFunction) (GstDParamManager *dpman);
-typedef void (*GstDPMModeTeardownFunction) (GstDParamManager *dpman);
-
-typedef void (*GstDPMUpdateFunction) (GValue *value, gpointer data);
-
-struct _GstDParamManager {
- GstObject object;
-
- GHashTable *dparams;
- GSList *dparams_list;
-
- gchar *mode_name;
- GstDPMMode* mode;
- gpointer mode_data;
-
- gint64 timestamp;
- guint rate;
-};
-
-struct _GstDParamManagerClass {
- GstObjectClass parent_class;
-
- GHashTable *modes;
- /* signal callbacks */
-};
-
-struct _GstDPMMode {
- GstDPMModePreProcessFunction preprocessfunc;
- GstDPMModeProcessFunction processfunc;
- GstDPMModeSetupFunction setupfunc;
- GstDPMModeTeardownFunction teardownfunc;
-};
-
-struct _GstDParamWrapper {
- GstDParamSpec* spec;
- GValue *value;
- GstDParam *dparam;
- GstDPMUpdateMethod update_method;
- gpointer update_data;
- GstDPMUpdateFunction update_func;
-};
-
-#define GST_DPMAN_PREPROCESSFUNC(dpman) (((dpman)->mode)->preprocessfunc)
-#define GST_DPMAN_PROCESSFUNC(dpman) (((dpman)->mode)->processfunc)
-#define GST_DPMAN_SETUPFUNC(dpman) (((dpman)->mode)->setupfunc)
-#define GST_DPMAN_TEARDOWNFUNC(dpman) (((dpman)->mode)->teardownfunc)
-
-#define GST_DPMAN_PREPROCESS(dpman, buffer_size, timestamp) \
- (GST_DPMAN_PREPROCESSFUNC(dpman)(dpman, buffer_size, timestamp))
-
-#define GST_DPMAN_PROCESS(dpman, frame_count) \
- (GST_DPMAN_PROCESSFUNC(dpman)(dpman, frame_count))
-
-#define GST_DPMAN_PROCESS_COUNTDOWN(dpman, frame_countdown, frame_count) \
- (frame_countdown-- || \
- (frame_countdown = GST_DPMAN_PROCESS(dpman, frame_count)))
-
-#define GST_DPMAN_DO_UPDATE(dpwrap) ((dpwrap->update_func)(dpwrap->value, dpwrap->update_data))
-
-GType gst_dpman_get_type (void);
-GstDParamManager* gst_dpman_new (gchar *name, GstElement *parent);
-void gst_dpman_set_parent (GstDParamManager *dpman, GstElement *parent);
-
-gboolean gst_dpman_add_required_dparam_callback (GstDParamManager *dpman,
- gchar *dparam_name,
- GType type,
- GstDPMUpdateFunction update_func,
- gpointer update_data);
-gboolean gst_dpman_add_required_dparam_direct (GstDParamManager *dpman,
- gchar *dparam_name,
- GType type,
- gpointer update_data);
-gboolean gst_dpman_add_required_dparam_array (GstDParamManager *dpman,
- gchar *dparam_name,
- GType type,
- gpointer update_data);
-void gst_dpman_remove_required_dparam (GstDParamManager *dpman, gchar *dparam_name);
-gboolean gst_dpman_attach_dparam (GstDParamManager *dpman, gchar *dparam_name, GstDParam *dparam);
-void gst_dpman_dettach_dparam (GstDParamManager *dpman, gchar *dparam_name);
-GstDParam* gst_dpman_get_dparam(GstDParamManager *dpman, gchar *name);
-GType gst_dpman_get_dparam_type (GstDParamManager *dpman, gchar *name);
-
-GstDParamSpec** gst_dpman_list_dparam_specs(GstDParamManager *dpman);
-GstDParamSpec* gst_dpman_get_dparam_spec (GstDParamManager *dpman, gchar *dparam_name);
-void gst_dpman_dparam_spec_has_changed (GstDParamManager *dpman, gchar *dparam_name);
-
-void gst_dpman_set_rate_change_pad(GstDParamManager *dpman, GstPad *pad);
-
-gboolean gst_dpman_set_mode(GstDParamManager *dpman, gchar *modename);
-void gst_dpman_register_mode (GstDParamManagerClass *klass,
- gchar *modename,
- GstDPMModePreProcessFunction preprocessfunc,
- GstDPMModeProcessFunction processfunc,
- GstDPMModeSetupFunction setupfunc,
- GstDPMModeTeardownFunction teardownfunc);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __GST_DPMAN_H__ */
projects / platform / upstream / gstreamer.git / commitdiff