mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-26 10:10:32 +00:00
147 lines
5.3 KiB
C
147 lines
5.3 KiB
C
/* GStreamer
|
|
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
|
|
* 2000 Wim Taymans <wtay@chello.be>
|
|
*
|
|
* gstprops.h: Header for properties subsystem
|
|
*
|
|
* 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_PROPS_H__
|
|
#define __GST_PROPS_H__
|
|
|
|
#include <gst/gstconfig.h>
|
|
|
|
#include <glib-object.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif /* __cplusplus */
|
|
|
|
typedef struct _GstProps GstProps;
|
|
extern GType _gst_props_type;
|
|
|
|
#define GST_TYPE_PROPS (_get_props_type)
|
|
|
|
typedef enum {
|
|
GST_PROPS_END_TYPE = 0,
|
|
|
|
GST_PROPS_INVALID_TYPE,
|
|
|
|
GST_PROPS_INT_TYPE,
|
|
GST_PROPS_FLOAT_TYPE,
|
|
GST_PROPS_FOURCC_TYPE,
|
|
GST_PROPS_BOOL_TYPE,
|
|
GST_PROPS_STRING_TYPE,
|
|
|
|
GST_PROPS_VAR_TYPE, /* after this marker start the variable properties */
|
|
|
|
GST_PROPS_LIST_TYPE,
|
|
GST_PROPS_FLOAT_RANGE_TYPE,
|
|
GST_PROPS_INT_RANGE_TYPE,
|
|
|
|
GST_PROPS_LAST_TYPE = GST_PROPS_END_TYPE + 16,
|
|
} GstPropsType;
|
|
|
|
#define GST_MAKE_FOURCC(a,b,c,d) ((a)|(b)<<8|(c)<<16|(d)<<24)
|
|
#define GST_STR_FOURCC(f) (((f)[0])|((f)[1]<<8)|((f)[2]<<16)|((f)[3]<<24))
|
|
|
|
#define GST_PROPS_LIST(a...) GST_PROPS_LIST_TYPE,##a,NULL
|
|
#define GST_PROPS_INT(a) GST_PROPS_INT_TYPE,(a)
|
|
#define GST_PROPS_INT_RANGE(a,b) GST_PROPS_INT_RANGE_TYPE,(a),(b)
|
|
#define GST_PROPS_FLOAT(a) GST_PROPS_FLOAT_TYPE,(a)
|
|
#define GST_PROPS_FLOAT_RANGE(a,b) GST_PROPS_FLOAT_RANGE_TYPE,(a),(b)
|
|
#define GST_PROPS_FOURCC(a) GST_PROPS_FOURCC_TYPE,(a)
|
|
#define GST_PROPS_BOOLEAN(a) GST_PROPS_BOOL_TYPE,(a)
|
|
#define GST_PROPS_STRING(a) GST_PROPS_STRING_TYPE,(a)
|
|
|
|
#define GST_PROPS_INT_POSITIVE GST_PROPS_INT_RANGE(0,G_MAXINT)
|
|
#define GST_PROPS_INT_NEGATIVE GST_PROPS_INT_RANGE(G_MININT,0)
|
|
#define GST_PROPS_INT_ANY GST_PROPS_INT_RANGE(G_MININT,G_MAXINT)
|
|
|
|
typedef struct _GstPropsEntry GstPropsEntry;
|
|
|
|
struct _GstProps {
|
|
gint refcount;
|
|
gboolean fixed;
|
|
|
|
GList *properties; /* real properties for this property */
|
|
};
|
|
|
|
/* initialize the subsystem */
|
|
void _gst_props_initialize (void);
|
|
|
|
GstProps* gst_props_new (const gchar *firstname, ...);
|
|
GstProps* gst_props_newv (const gchar *firstname, va_list var_args);
|
|
GstProps* gst_props_empty_new (void);
|
|
|
|
void gst_props_unref (GstProps *props);
|
|
void gst_props_ref (GstProps *props);
|
|
void gst_props_destroy (GstProps *props);
|
|
|
|
void gst_props_debug (GstProps *props);
|
|
|
|
GstProps* gst_props_copy (GstProps *props);
|
|
GstProps* gst_props_copy_on_write (GstProps *props);
|
|
|
|
GstProps* gst_props_merge (GstProps *props, GstProps *tomerge);
|
|
|
|
gboolean gst_props_check_compatibility (GstProps *fromprops, GstProps *toprops);
|
|
GstProps* gst_props_intersect (GstProps *props1, GstProps *props2);
|
|
GList* gst_props_normalize (GstProps *props);
|
|
|
|
GstProps* gst_props_set (GstProps *props, const gchar *name, ...);
|
|
gboolean gst_props_get (GstProps *props, gchar *first_name, ...);
|
|
gboolean gst_props_get_safe (GstProps *props, gchar *first_name, ...);
|
|
|
|
gboolean gst_props_has_property (GstProps *props, const gchar *name);
|
|
gboolean gst_props_has_property_typed (GstProps *props, const gchar *name, GstPropsType type);
|
|
gboolean gst_props_has_fixed_property (GstProps *props, const gchar *name);
|
|
|
|
const GstPropsEntry* gst_props_get_entry (GstProps *props, const gchar *name);
|
|
void gst_props_add_entry (GstProps *props, GstPropsEntry *entry);
|
|
|
|
/* working with props entries */
|
|
GstPropsEntry* gst_props_entry_new (const gchar *name, ...);
|
|
|
|
GstPropsType gst_props_entry_get_type (const GstPropsEntry *entry);
|
|
const gchar* gst_props_entry_get_name (const GstPropsEntry *entry);
|
|
gboolean gst_props_entry_is_fixed (const GstPropsEntry *entry);
|
|
|
|
gboolean gst_props_entry_get (const GstPropsEntry *entry, ...);
|
|
|
|
gboolean gst_props_entry_get_int (const GstPropsEntry *entry, gint *val);
|
|
gboolean gst_props_entry_get_float (const GstPropsEntry *entry, gfloat *val);
|
|
gboolean gst_props_entry_get_fourcc_int (const GstPropsEntry *entry, guint32 *val);
|
|
gboolean gst_props_entry_get_boolean (const GstPropsEntry *entry, gboolean *val);
|
|
gboolean gst_props_entry_get_string (const GstPropsEntry *entry, const gchar **val);
|
|
gboolean gst_props_entry_get_int_range (const GstPropsEntry *entry, gint *min, gint *max);
|
|
gboolean gst_props_entry_get_float_range (const GstPropsEntry *entry, gfloat *min, gfloat *max);
|
|
gboolean gst_props_entry_get_list (const GstPropsEntry *entry, const GList **val);
|
|
|
|
|
|
#ifndef GST_DISABLE_LOADSAVE
|
|
xmlNodePtr gst_props_save_thyself (GstProps *props, xmlNodePtr parent);
|
|
GstProps* gst_props_load_thyself (xmlNodePtr parent);
|
|
#endif
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif /* __cplusplus */
|
|
|
|
#endif /* __GST_PROPS_H__ */
|