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614b4d1627
Original commit message from CVS: * gst/gstcaps.c: (gst_caps_append), (gst_caps_union): check for ANY caps before appending/unioning * gst/gstcaps.c: (gst_caps_is_subset), (gst_caps_is_equal), (gst_caps_structure_subtract_field), (gst_caps_structure_subtract), (gst_caps_subtract): * gst/gstcaps.h: add gst_caps_is_equal, gst_caps_is_subset and gst_caps_subtract to the API. deprecate gst_caps_is_equal_fixed * gst/gstpad.c: (gst_pad_try_set_caps): * gst/gstqueue.c: (gst_queue_link): s/gst_caps_is_equal_fixed/gst_caps_is_equal/ * gst/gststructure.c: (gst_structure_get_name_id): * gst/gststructure.h: add function gst_structure_get_name_id * gst/gstvalue.c: (gst_value_subtract_int_int_range), (gst_value_create_new_range), (gst_value_subtract_int_range_int), (gst_value_subtract_int_range_int_range), (gst_value_subtract_double_double_range), (gst_value_subtract_double_range_double), (gst_value_subtract_double_range_double_range), (gst_value_subtract_from_list), (gst_value_subtract_list), (gst_value_can_intersect), (gst_value_subtract), (gst_value_can_subtract), (gst_value_register_subtract_func), (_gst_value_initialize): * gst/gstvalue.h: add support for subtracting values from each other. Note that subtracting means subtracting as in set theory. Required for caps stuff above. * testsuite/caps/.cvsignore: * testsuite/caps/Makefile.am: * testsuite/caps/erathostenes.c: (erathostenes), (main): * testsuite/caps/sets.c: (check_caps), (main): * testsuite/caps/subtract.c: (check_caps), (main): add tests for subtraction and equality code.
128 lines
6 KiB
C
128 lines
6 KiB
C
/* GStreamer
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* Copyright (C) 2003 David A. Schleef <ds@schleef.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_STRUCTURE_H__
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#define __GST_STRUCTURE_H__
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#include <gst/gstconfig.h>
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#include <gst/gsttypes.h>
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#include <glib-object.h>
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G_BEGIN_DECLS
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#define GST_TYPE_STRUCTURE (gst_structure_get_type ())
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#define GST_STRUCTURE(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GST_TYPE_STRUCTURE, GstStructure))
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#define GST_IS_STRUCTURE(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GST_TYPE_STRUCTURE))
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typedef struct _GstStructure GstStructure;
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typedef gboolean (*GstStructureForeachFunc) (GQuark field_id,
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GValue * value,
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gpointer user_data);
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struct _GstStructure {
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GType type;
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GQuark name;
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GArray *fields;
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gpointer _gst_reserved[GST_PADDING];
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};
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GType gst_structure_get_type (void) G_GNUC_CONST;
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GstStructure * gst_structure_empty_new (const gchar * name);
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GstStructure * gst_structure_id_empty_new (GQuark quark);
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GstStructure * gst_structure_new (const gchar * name,
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const gchar * firstfield,
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...);
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GstStructure * gst_structure_new_valist (const gchar * name,
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const gchar * firstfield,
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va_list varargs);
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GstStructure * gst_structure_copy (const GstStructure *structure);
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void gst_structure_free (GstStructure *structure);
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G_CONST_RETURN gchar * gst_structure_get_name (const GstStructure *structure);
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GQuark gst_structure_get_name_id (const GstStructure *structure);
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void gst_structure_set_name (GstStructure *structure,
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const gchar *name);
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void gst_structure_id_set_value (GstStructure *structure,
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GQuark field,
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const GValue *value);
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void gst_structure_set_value (GstStructure *structure,
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const gchar *fieldname,
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const GValue *value);
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void gst_structure_set (GstStructure *structure,
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const gchar *fieldname,
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...);
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void gst_structure_set_valist (GstStructure *structure,
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const gchar *fieldname,
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va_list varargs);
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G_CONST_RETURN GValue * gst_structure_id_get_value (const GstStructure *structure,
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GQuark field);
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G_CONST_RETURN GValue * gst_structure_get_value (const GstStructure *structure,
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const gchar *fieldname);
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void gst_structure_remove_field (GstStructure *structure,
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const gchar *fieldname);
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void gst_structure_remove_fields (GstStructure *structure,
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const gchar *fieldname,
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...);
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void gst_structure_remove_fields_valist (GstStructure *structure,
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const gchar *fieldname,
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va_list varargs);
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void gst_structure_remove_all_fields (GstStructure *structure);
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GType gst_structure_get_field_type (const GstStructure *structure,
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const gchar *fieldname);
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gboolean gst_structure_foreach (GstStructure *structure,
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GstStructureForeachFunc func,
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gpointer user_data);
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gint gst_structure_n_fields (const GstStructure *structure);
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gboolean gst_structure_has_field (const GstStructure *structure,
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const gchar *fieldname);
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gboolean gst_structure_has_field_typed (const GstStructure *structure,
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const gchar *fieldname,
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GType type);
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/* utility functions */
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gboolean gst_structure_get_boolean (const GstStructure *structure,
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const gchar *fieldname,
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gboolean *value);
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gboolean gst_structure_get_int (const GstStructure *structure,
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const gchar *fieldname,
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gint *value);
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gboolean gst_structure_get_fourcc (const GstStructure *structure,
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const gchar *fieldname,
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guint32 *value);
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gboolean gst_structure_get_double (const GstStructure *structure,
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const gchar *fieldname,
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gdouble *value);
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G_CONST_RETURN gchar * gst_structure_get_string (const GstStructure *structure,
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const gchar *fieldname);
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gchar * gst_structure_to_string (const GstStructure *structure);
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GstStructure * gst_structure_from_string (const gchar *string,
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gchar **end);
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G_END_DECLS
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#endif
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