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/* 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_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_NEXT_UPDATE_TIMESTAMP(dparam) ((dparam)->next_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 _GstDParamModel GstDParamModel;
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;
GValue **point;
gint64 next_update_timestamp;
gboolean ready_for_update;
};
struct _GstDParamClass {
GstObjectClass parent_class;
/* signal callbacks */
};
GType gst_dparam_get_type (void);
GstDParam* gst_dparam_new ();
void gst_dparam_set_parent (GstDParam *dparam, GstObject *parent);
GValue** gst_dparam_new_value_array(GType type, ...);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GST_DPARAM_H__ */
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