mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-04 21:55:55 +00:00
7c0804b15c
Original commit message from CVS: 2005-02-10 Andy Wingo <wingo@pobox.com> * testsuite/caps/value_serialize.c: merge from HEAD. * testsuite/caps/subtract.c: * testsuite/caps/filtercaps.c: * testsuite/caps/enumcaps.c: * testsuite/caps/deserialize.c: * testsuite/caps/caps.c: * testsuite/caps/audioscale.c: Unref caps, not free. * testsuite/caps/caps_strings: Merged from HEAD. * gst/elements/gstidentity.c (gst_identity_proxy_getcaps): Getcaps implementation for identity. * gst/gststructure.h * gst/gststructure.c (gst_caps_structure_fixate_field_nearest_double): (gst_caps_structure_fixate_field_nearest_int): Moved from gstcaps.c because we need the private IS_MUTABLE macro. (IS_MUTABLE): New macro, determines if a structure is mutable or not. (gst_structure_free): Don't allow free while holding a pointer to a parent's refcount. (gst_structure_set_name): Check for writability. (gst_structure_id_set_value): Same. (gst_structure_set_value): Same. (gst_structure_set_valist): Same. (gst_structure_remove_field): Same. (gst_structure_remove_all_fields): Same. (gst_structure_map_in_place): New routine, like _foreach but allows the function to mutate the value (via a non-const prototype). Check for writability. (gst_structure_foreach): Redefine to only take non-mutating functions. * gst/gstcaps.c (IS_WRITABLE): New macro, returns TRUE if the caps are writable. (gst_caps_copy): Add some docs about mutability, etc. (_gst_caps_free): Set the parent refcount pointer on structures to NULL before freeing them. (gst_caps_ref): Document. (gst_caps_make_writable): Doc. (gst_caps_make_writable): Changed to make_writable, get_writable sounds too much like retrieving a property. (gst_caps_copy_1): Removed, not very useful. (gst_caps_ref_by_count): Removed, no need to have something GLib doesn't. (gst_caps_copy_conditional): Ref instead of copying. (gst_static_caps_get): Retain a reference to the returned caps, so that the static caps will remain immutable. (gst_caps_remove_and_get_structure): Set the parent refcount to NULL when removing the structure. (gst_caps_append): Fix to work with structure parent refcounts. Check for writability. (gst_caps_append_structure): Check for writability, work with parent refcounts. (gst_caps_remove_structure): Check for writability. (gst_caps_set_simple): Check for writability. (gst_caps_set_simple_valist): Check for writability. (gst_caps_is_fixed_foreach): Update for non-mutating foreach. (gst_structure_is_equal_foreach): Same. (gst_caps_structure_intersect_field): Same. (gst_caps_structure_subtract_field): Same. Make static. (gst_caps_normalize_foreach): Same. (gst_caps_structure_figure_out_union): Same. (gst_caps_switch_structures): New static function, switches out structures inside a caps, taking care of parent_refcount setting. * gst/gstpad.c (gst_pad_get_allowed_caps): Remove the restriction on only src pads, wim von masterhack claims it was bogus. * testsuite/caps/Makefile.am * testsuite/caps/app_fixate.c: Removed app_fixate test, things are done a bit differently in THREADED.
152 lines
5.9 KiB
C
152 lines
5.9 KiB
C
/* GStreamer
|
|
* Copyright (C) 2003 David A. Schleef <ds@schleef.org>
|
|
*
|
|
* 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_CAPS_H__
|
|
#define __GST_CAPS_H__
|
|
|
|
#include <gst/gstconfig.h>
|
|
#include <gst/gststructure.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GST_TYPE_CAPS (gst_caps_get_type())
|
|
#define GST_CAPS(object) ((GstCaps*)object)
|
|
#define GST_IS_CAPS(object) ((object) && (GST_CAPS(object)->type == GST_TYPE_CAPS))
|
|
|
|
#define GST_CAPS_FLAGS_ANY (1 << 0)
|
|
|
|
#define GST_CAPS_ANY gst_caps_new_any()
|
|
#define GST_CAPS_NONE gst_caps_new_empty()
|
|
|
|
#define GST_STATIC_CAPS_ANY GST_STATIC_CAPS("ANY")
|
|
#define GST_STATIC_CAPS_NONE GST_STATIC_CAPS("NONE")
|
|
|
|
#define GST_CAPS_IS_SIMPLE(caps) (gst_caps_get_size(caps) == 1)
|
|
#define gst_caps_is_simple(caps) GST_CAPS_IS_SIMPLE(caps)
|
|
|
|
#define GST_DEBUG_CAPS(string, caps) \
|
|
GST_DEBUG ( string "%s: " GST_PTR_FORMAT, caps)
|
|
|
|
#define GST_STATIC_CAPS(string) \
|
|
{ \
|
|
/* caps */ { 0 }, \
|
|
/* string */ string, \
|
|
}
|
|
|
|
typedef struct _GstCaps GstCaps;
|
|
typedef struct _GstStaticCaps GstStaticCaps;
|
|
|
|
/* refcount */
|
|
#define GST_CAPS_REFCOUNT(caps) ((GST_CAPS(caps))->refcount)
|
|
#define GST_CAPS_REFCOUNT_VALUE(caps) (gst_atomic_int_read (&(GST_CAPS(caps))->refcount))
|
|
|
|
struct _GstCaps {
|
|
GType type;
|
|
|
|
/*< public >*/ /* with COW */
|
|
/* refcounting */
|
|
GstAtomicInt refcount;
|
|
|
|
guint16 flags;
|
|
GPtrArray *structs;
|
|
|
|
/*< private >*/
|
|
gpointer _gst_reserved[GST_PADDING];
|
|
};
|
|
|
|
struct _GstStaticCaps {
|
|
/*< public >*/
|
|
GstCaps caps;
|
|
const char *string;
|
|
|
|
/*< private >*/
|
|
gpointer _gst_reserved[GST_PADDING];
|
|
};
|
|
|
|
GType gst_caps_get_type (void) G_GNUC_CONST;
|
|
GstCaps * gst_caps_new_empty (void);
|
|
GstCaps * gst_caps_new_any (void);
|
|
GstCaps * gst_caps_new_simple (const char *media_type,
|
|
const char *fieldname,
|
|
...);
|
|
GstCaps * gst_caps_new_full (GstStructure *struct1,
|
|
...);
|
|
GstCaps * gst_caps_new_full_valist (GstStructure *structure,
|
|
va_list var_args);
|
|
|
|
/* reference counting */
|
|
GstCaps * gst_caps_ref (GstCaps* caps);
|
|
GstCaps * gst_caps_copy (const GstCaps * caps);
|
|
GstCaps * gst_caps_make_writable (GstCaps *caps);
|
|
void gst_caps_unref (GstCaps* caps);
|
|
|
|
G_CONST_RETURN GstCaps * gst_static_caps_get (GstStaticCaps *static_caps);
|
|
|
|
/* manipulation */
|
|
void gst_caps_append (GstCaps *caps1,
|
|
GstCaps *caps2);
|
|
void gst_caps_append_structure (GstCaps *caps,
|
|
GstStructure *structure);
|
|
int gst_caps_get_size (const GstCaps *caps);
|
|
GstStructure * gst_caps_get_structure (const GstCaps *caps,
|
|
int index);
|
|
void gst_caps_set_simple (GstCaps *caps,
|
|
char *field, ...);
|
|
void gst_caps_set_simple_valist (GstCaps *caps,
|
|
char *field,
|
|
va_list varargs);
|
|
|
|
/* tests */
|
|
gboolean gst_caps_is_any (const GstCaps *caps);
|
|
gboolean gst_caps_is_empty (const GstCaps *caps);
|
|
gboolean gst_caps_is_fixed (const GstCaps *caps);
|
|
gboolean gst_caps_is_always_compatible (const GstCaps *caps1,
|
|
const GstCaps *caps2);
|
|
gboolean gst_caps_is_subset (const GstCaps *subset,
|
|
const GstCaps *superset);
|
|
gboolean gst_caps_is_equal (const GstCaps *caps1,
|
|
const GstCaps *caps2);
|
|
|
|
/* operations */
|
|
GstCaps * gst_caps_intersect (const GstCaps *caps1,
|
|
const GstCaps *caps2);
|
|
GstCaps * gst_caps_subtract (const GstCaps *minuend,
|
|
const GstCaps *subtrahend);
|
|
GstCaps * gst_caps_union (const GstCaps *caps1,
|
|
const GstCaps *caps2);
|
|
GstCaps * gst_caps_normalize (const GstCaps *caps);
|
|
gboolean gst_caps_do_simplify (GstCaps *caps);
|
|
|
|
#ifndef GST_DISABLE_LOADSAVE
|
|
xmlNodePtr gst_caps_save_thyself (const GstCaps *caps,
|
|
xmlNodePtr parent);
|
|
GstCaps * gst_caps_load_thyself (xmlNodePtr parent);
|
|
#endif
|
|
|
|
/* utility */
|
|
void gst_caps_replace (GstCaps **caps,
|
|
GstCaps *newcaps);
|
|
gchar * gst_caps_to_string (const GstCaps *caps);
|
|
GstCaps * gst_caps_from_string (const gchar *string);
|
|
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_CAPS_H__ */
|