mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-27 04:01:08 +00:00
aa6049eb61
Original commit message from CVS: * docs/gst/Makefile.am: Remove --ignore-fail-on-non-empty (#150331) * docs/libs/Makefile.am: same * docs/gst/tmpl/gstxml.sgml: Remove GstXMLNs * docs/random/ds/0.9-planning: random additions * docs/random/ds/0.9-suggested-changes: same * gst/gstxml.h: remove vestigal GstXMLNs definition Preferred caps: (#147789) * docs/gst/gstreamer-sections.txt: Add symbols * docs/gst/tmpl/gstcaps.sgml: Add symbols * gst/gstcaps.c: (gst_caps_copy), (gst_caps_free), (gst_caps_append), (gst_caps_copy_1), (gst_caps_intersect), (gst_caps_union), (gst_caps_save_thyself), (gst_caps_load_thyself), (gst_caps_get_preferred), (gst_caps_set_preferred), (gst_caps_get_structure_by_id), (gst_caps_prefer_foreach), (gst_caps_use_preferred): Handle caps preferences * gst/gstcaps.h: Add caps preferences * gst/gstpad.c: (gst_pad_link_get_preferred), (gst_pad_link_fixate), (gst_pad_link_call_link_functions), (gst_pad_renegotiate), (gst_pad_guess_preferred), (gst_pad_get_caps), (gst_pad_push): Use caps preferences for negotiation.
170 lines
7 KiB
C
170 lines
7 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)
|
|
|
|
#ifndef GST_DISABLE_DEPRECATED
|
|
#define GST_DEBUG_CAPS(string, caps) \
|
|
GST_DEBUG ( string "%s: " GST_PTR_FORMAT, caps)
|
|
#endif
|
|
|
|
#define GST_STATIC_CAPS(string) \
|
|
{ \
|
|
/* caps */ { 0 }, \
|
|
/* string */ string, \
|
|
}
|
|
|
|
#define GST_STATIC_CAPS_PREFERRED(string, preferred) \
|
|
{ \
|
|
/* caps */ { 0 }, \
|
|
/* string */ string, \
|
|
/* preferred */ preferred, \
|
|
}
|
|
|
|
typedef struct _GstCaps GstCaps;
|
|
typedef struct _GstStaticCaps GstStaticCaps;
|
|
|
|
struct _GstCaps {
|
|
GType type;
|
|
|
|
guint16 flags;
|
|
GPtrArray *structs;
|
|
GstStructure *preferred;
|
|
|
|
gpointer _gst_reserved[GST_PADDING - 1];
|
|
};
|
|
|
|
struct _GstStaticCaps {
|
|
GstCaps caps;
|
|
const char *string;
|
|
const char *preferred;
|
|
|
|
gpointer _gst_reserved[GST_PADDING - 1];
|
|
};
|
|
|
|
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);
|
|
GstCaps * gst_caps_copy (const GstCaps *caps);
|
|
void gst_caps_free (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);
|
|
#ifndef GST_DISABLE_DEPRECATED
|
|
GstCaps * gst_caps_split_one (GstCaps *caps);
|
|
GstCaps * gst_caps_copy_1 (const GstCaps *caps);
|
|
#endif
|
|
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);
|
|
#ifndef GST_DISABLE_DEPRECATED
|
|
gboolean gst_caps_is_chained (const GstCaps *caps);
|
|
gboolean gst_caps_is_equal_fixed (const GstCaps *caps1,
|
|
const GstCaps *caps2);
|
|
#endif
|
|
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);
|
|
#ifndef GST_DISABLE_DEPRECATED
|
|
GstCaps * gst_caps_simplify (const GstCaps *caps);
|
|
#endif
|
|
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);
|
|
|
|
gboolean gst_caps_structure_fixate_field_nearest_int (GstStructure *structure,
|
|
const char *field_name,
|
|
int target);
|
|
gboolean gst_caps_structure_fixate_field_nearest_double (GstStructure *structure,
|
|
const char *field_name,
|
|
double target);
|
|
|
|
const GstStructure * gst_caps_get_preferred (const GstCaps *caps);
|
|
void gst_caps_set_preferred (GstCaps *caps,
|
|
const GstStructure *structure);
|
|
GstCaps * gst_caps_use_preferred (const GstCaps *caps);
|
|
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_CAPS_H__ */
|