2003-11-03 09:10:07 +00:00
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/* GStreamer
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* Copyright (C) 2003 David A. Schleef <ds@schleef.org>
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*
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* gststructure.c: lists of { GQuark, GValue } tuples
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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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include <gst/gst.h>
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#include <gobject/gvaluecollector.h>
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static GType _gst_structure_type;
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2003-12-22 01:39:35 +00:00
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typedef struct _GstStructureField GstStructureField;
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struct _GstStructureField {
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GQuark name;
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GValue value;
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};
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#define GST_STRUCTURE_FIELD(structure, index) \
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&g_array_index((structure)->fields, GstStructureField, (index))
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static void gst_structure_set_field (GstStructure *structure,
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GstStructureField *field);
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static GstStructureField *gst_structure_get_field(const GstStructure *structure,
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const gchar *fieldname);
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static GstStructureField *gst_structure_id_get_field(const GstStructure *structure,
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2004-01-30 19:06:13 +00:00
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GQuark field);
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2003-12-22 01:39:35 +00:00
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2003-11-03 09:10:07 +00:00
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static void _gst_structure_transform_to_string(const GValue *src_value,
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GValue *dest_value);
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static void _gst_structure_value_init (GValue *value);
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static void _gst_structure_value_free (GValue *value);
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static void _gst_structure_value_copy (const GValue *src, GValue *dest);
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static gpointer _gst_structure_value_peek_pointer (const GValue *value);
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GType gst_structure_get_type(void)
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{
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return _gst_structure_type;
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}
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void _gst_structure_initialize(void)
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{
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2003-11-24 02:09:23 +00:00
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static const GTypeValueTable type_value_table = {
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2003-11-03 09:10:07 +00:00
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_gst_structure_value_init,
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_gst_structure_value_free,
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_gst_structure_value_copy,
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_gst_structure_value_peek_pointer,
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NULL,
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NULL,
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NULL,
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NULL,
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};
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2003-11-24 02:09:23 +00:00
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static const GTypeInfo structure_info = {
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2003-11-03 09:10:07 +00:00
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0,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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0, /* sizeof(GstStructure), */
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0,
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NULL, /* _gst_structure_init, */
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&type_value_table,
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};
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_gst_structure_type = g_type_register_static(G_TYPE_BOXED, "GstStructure",
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&structure_info, 0);
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#if 0
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_gst_structure_type = g_boxed_type_register_static("GstStructure",
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2003-11-04 05:54:24 +00:00
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(GBoxedCopyFunc) gst_structure_copy,
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2003-11-03 09:10:07 +00:00
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(GBoxedFreeFunc) gst_structure_free);
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#endif
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g_value_register_transform_func(_gst_structure_type, G_TYPE_STRING,
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_gst_structure_transform_to_string);
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}
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2003-11-24 02:09:23 +00:00
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/**
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* gst_structure_id_empty_new:
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2004-01-30 19:06:13 +00:00
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* @quark: name of new structure
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2003-11-24 02:09:23 +00:00
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*
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* Creates a new, empty #GstStructure with the given name.
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*
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* Returns: a new, empty #GstStructure
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*/
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GstStructure *gst_structure_id_empty_new(GQuark quark)
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{
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GstStructure *structure;
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g_return_val_if_fail(quark != 0, NULL);
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structure = g_new0(GstStructure, 1);
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structure->name = quark;
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structure->fields = g_array_new(FALSE,TRUE,sizeof(GstStructureField));
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return structure;
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}
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2003-11-03 09:10:07 +00:00
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/**
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* gst_structure_empty_new:
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* @name: name of new structure
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*
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* Creates a new, empty #GstStructure with the given name.
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*
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* Returns: a new, empty #GstStructure
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*/
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GstStructure *gst_structure_empty_new(const gchar *name)
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{
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GstStructure *structure;
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g_return_val_if_fail(name != NULL, NULL);
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structure = g_new0(GstStructure, 1);
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structure->name = g_quark_from_string(name);
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structure->fields = g_array_new(FALSE,TRUE,sizeof(GstStructureField));
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return structure;
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}
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/**
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* gst_structure_new:
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* @name: name of new structure
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* @firstfield: name of first field to set
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* @...: additional arguments
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*
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* Creates a new #GstStructure with the given name. Parses the
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* list of variable arguments and sets fields to the values listed.
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* Variable arguments should be passed as field name, field type,
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* and value. Last variable argument should be NULL.
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*
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* Returns: a new #GstStructure
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*/
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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 *structure;
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va_list varargs;
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g_return_val_if_fail(name != NULL, NULL);
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va_start(varargs, firstfield);
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structure = gst_structure_new_valist(name,firstfield,varargs);
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va_end(varargs);
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return structure;
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}
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/**
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* gst_structure_new_valist:
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* @name: name of new structure
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* @firstfield: name of first field to set
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2004-01-30 19:06:13 +00:00
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* @varargs: variable argument list
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2003-11-03 09:10:07 +00:00
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*
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* Creates a new #GstStructure with the given name. Structure fields
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* are set according to the varargs in a manner similar to
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* @gst_structure_new.
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*
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* Returns: a new #GstStructure
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*/
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GstStructure *gst_structure_new_valist(const gchar *name,
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const gchar *firstfield, va_list varargs)
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{
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GstStructure *structure;
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g_return_val_if_fail(name != NULL, NULL);
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structure = gst_structure_empty_new(name);
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gst_structure_set_valist(structure, firstfield, varargs);
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return structure;
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}
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/**
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2003-11-04 05:54:24 +00:00
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* gst_structure_copy:
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2003-11-03 09:10:07 +00:00
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* @structure: a #GstStructure to duplicate
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*
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* Duplicates a #GstStructure and all its fields and values.
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*
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* Returns: a new #GstStructure.
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*/
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2003-11-04 05:54:24 +00:00
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GstStructure *gst_structure_copy(GstStructure *structure)
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2003-11-03 09:10:07 +00:00
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{
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GstStructure *new_structure;
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GstStructureField *field;
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int i;
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g_return_val_if_fail(structure != NULL, NULL);
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new_structure = gst_structure_empty_new(g_quark_to_string(structure->name));
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new_structure->name = structure->name;
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for(i=0;i<structure->fields->len;i++){
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GstStructureField new_field = { 0 };
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field = GST_STRUCTURE_FIELD(structure, i);
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new_field.name = field->name;
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2003-12-22 07:00:25 +00:00
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gst_value_init_and_copy (&new_field.value, &field->value);
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2003-11-03 09:10:07 +00:00
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g_array_append_val(new_structure->fields, new_field);
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}
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2003-12-30 04:59:48 +00:00
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return new_structure;
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2003-11-03 09:10:07 +00:00
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}
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/**
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* gst_structure_free:
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* @structure: the #GstStructure to free
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*
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* Frees a #GstStructure and all its fields and values.
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*/
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void gst_structure_free(GstStructure *structure)
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{
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GstStructureField *field;
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int i;
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2004-02-05 13:32:09 +00:00
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return;
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2003-11-03 09:10:07 +00:00
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g_return_if_fail(structure != NULL);
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for(i=0;i<structure->fields->len;i++){
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field = GST_STRUCTURE_FIELD(structure, i);
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if(G_IS_VALUE(&field->value)){
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g_value_unset(&field->value);
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}
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}
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2003-12-22 01:39:35 +00:00
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#ifdef USE_POISONING
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memset (structure, 0xff, sizeof(GstStructure));
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#endif
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2003-11-03 09:10:07 +00:00
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g_free(structure);
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}
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/**
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* gst_structure_get_name:
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* @structure: a #GstStructure
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*
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* Accessor fuction.
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*
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* Returns: the name of the structure.
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*/
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2003-12-22 01:39:35 +00:00
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const gchar *gst_structure_get_name(const GstStructure *structure)
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{
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g_return_val_if_fail(structure != NULL, NULL);
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return g_quark_to_string(structure->name);
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}
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/**
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* gst_structure_set_name:
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* @structure: a #GstStructure
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* @name: the new name of the structure
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*
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* Sets the name of the structure to the given name. The string
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* provided is copied before being used.
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*/
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void gst_structure_set_name(GstStructure *structure, const gchar *name)
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{
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g_return_if_fail(structure != NULL);
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g_return_if_fail(name != NULL);
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structure->name = g_quark_from_string(name);
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}
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/**
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* gst_structure_id_set_value:
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* @structure: a #GstStructure
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* @field: a #GQuark representing a field
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2003-11-03 09:10:07 +00:00
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* @value: the new value of the field
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*
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* Sets the field with the given ID to the provided value. If the field
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* does not exist, it is created. If the field exists, the previous
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* value is freed.
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*/
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2004-01-30 19:06:13 +00:00
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void gst_structure_id_set_value(GstStructure *structure, GQuark field,
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2003-11-24 02:09:23 +00:00
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const GValue *value)
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2003-11-03 09:10:07 +00:00
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{
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2004-01-30 19:11:50 +00:00
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GstStructureField gsfield = { 0, { 0, } };
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2003-11-03 09:10:07 +00:00
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g_return_if_fail(structure != NULL);
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g_return_if_fail(G_IS_VALUE(value));
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2004-01-30 19:11:50 +00:00
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gsfield.name = field;
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gst_value_init_and_copy (&gsfield.value, value);
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2003-11-03 09:10:07 +00:00
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2004-01-30 19:11:50 +00:00
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gst_structure_set_field(structure, &gsfield);
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2003-11-03 09:10:07 +00:00
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}
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/**
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* gst_structure_set_value:
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* @structure: a #GstStructure
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2004-01-30 19:06:13 +00:00
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* @fieldname: the name of the field to set
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2003-11-03 09:10:07 +00:00
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* @value: the new value of the field
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*
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* Sets the field with the given name to the provided value. If the field
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* does not exist, it is created. If the field exists, the previous
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* value is freed.
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*/
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2004-01-30 19:06:13 +00:00
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void gst_structure_set_value(GstStructure *structure, const gchar *fieldname,
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2003-11-24 02:09:23 +00:00
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const GValue *value)
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2003-11-03 09:10:07 +00:00
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{
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g_return_if_fail(structure != NULL);
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2004-01-30 19:11:50 +00:00
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g_return_if_fail(fieldname != NULL);
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2003-11-03 09:10:07 +00:00
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g_return_if_fail(G_IS_VALUE(value));
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2004-01-30 19:11:50 +00:00
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gst_structure_id_set_value(structure, g_quark_from_string(fieldname), value);
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2003-11-03 09:10:07 +00:00
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}
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/**
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* gst_structure_set:
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* @structure: a #GstStructure
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2004-01-30 19:06:13 +00:00
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* @fieldname: the name of the field to set
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2003-11-03 09:10:07 +00:00
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* @...: variable arguments
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*
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* Parses the variable arguments and sets fields accordingly.
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* Variable arguments should be in the form field name, field type
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* (as a GType), value. The last variable argument should be NULL.
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*/
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void gst_structure_set(GstStructure *structure, const gchar *field, ...)
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{
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va_list varargs;
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g_return_if_fail(structure != NULL);
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va_start(varargs, field);
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|
|
gst_structure_set_valist(structure,field,varargs);
|
|
|
|
|
|
|
|
va_end(varargs);
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2003-12-22 01:39:35 +00:00
|
|
|
* gst_structure_set_valist:
|
2003-11-03 09:10:07 +00:00
|
|
|
* @structure: a #GstStructure
|
2004-01-30 19:06:13 +00:00
|
|
|
* @fieldname: the name of the field to set
|
2003-11-03 09:10:07 +00:00
|
|
|
* @varargs: variable arguments
|
|
|
|
*
|
|
|
|
* va_list form of #gst_structure_set.
|
|
|
|
*/
|
|
|
|
void gst_structure_set_valist(GstStructure *structure, const gchar *fieldname,
|
|
|
|
va_list varargs)
|
|
|
|
{
|
|
|
|
GType type;
|
|
|
|
int i;
|
|
|
|
double d;
|
|
|
|
char *s;
|
|
|
|
|
|
|
|
g_return_if_fail(structure != NULL);
|
|
|
|
|
|
|
|
while(fieldname){
|
|
|
|
GstStructureField field = { 0 };
|
|
|
|
|
|
|
|
field.name = g_quark_from_string(fieldname);
|
|
|
|
|
|
|
|
type = va_arg (varargs, GType);
|
|
|
|
|
|
|
|
switch(type){
|
|
|
|
case G_TYPE_INT:
|
|
|
|
i = va_arg(varargs, int);
|
|
|
|
g_value_init(&field.value, G_TYPE_INT);
|
|
|
|
g_value_set_int(&field.value, i);
|
|
|
|
break;
|
|
|
|
case G_TYPE_DOUBLE:
|
|
|
|
d = va_arg(varargs, double);
|
|
|
|
g_value_init(&field.value, G_TYPE_DOUBLE);
|
|
|
|
g_value_set_double(&field.value, d);
|
|
|
|
break;
|
|
|
|
case G_TYPE_BOOLEAN:
|
|
|
|
i = va_arg(varargs, int);
|
|
|
|
g_value_init(&field.value, G_TYPE_BOOLEAN);
|
|
|
|
g_value_set_boolean(&field.value, i);
|
|
|
|
break;
|
|
|
|
case G_TYPE_STRING:
|
|
|
|
s = va_arg(varargs, char *);
|
|
|
|
g_value_init(&field.value, G_TYPE_STRING);
|
|
|
|
g_value_set_string(&field.value, s);
|
|
|
|
break;
|
|
|
|
default:
|
2003-11-24 02:09:23 +00:00
|
|
|
if(type == GST_TYPE_FOURCC){
|
|
|
|
i = va_arg(varargs, int);
|
|
|
|
g_value_init(&field.value, GST_TYPE_FOURCC);
|
|
|
|
gst_value_set_fourcc(&field.value, i);
|
2003-12-22 01:39:35 +00:00
|
|
|
} else if (type == GST_TYPE_INT_RANGE){
|
|
|
|
int min, max;
|
|
|
|
min = va_arg(varargs, int);
|
|
|
|
max = va_arg(varargs, int);
|
|
|
|
g_value_init(&field.value, GST_TYPE_INT_RANGE);
|
|
|
|
gst_value_set_int_range(&field.value, min, max);
|
|
|
|
} else if (type == GST_TYPE_DOUBLE_RANGE){
|
|
|
|
double min, max;
|
|
|
|
min = va_arg(varargs, double);
|
|
|
|
max = va_arg(varargs, double);
|
|
|
|
g_value_init(&field.value, GST_TYPE_DOUBLE_RANGE);
|
|
|
|
gst_value_set_double_range(&field.value, min, max);
|
|
|
|
} else {
|
2003-11-24 02:09:23 +00:00
|
|
|
g_critical("unimplemented vararg field type %d\n", (int)type);
|
2003-12-22 01:39:35 +00:00
|
|
|
return;
|
2003-11-24 02:09:23 +00:00
|
|
|
}
|
2003-11-03 09:10:07 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
gst_structure_set_field(structure, &field);
|
|
|
|
|
|
|
|
fieldname = va_arg (varargs, gchar *);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* gst_structure_set_field:
|
|
|
|
* @structure: a #GstStructure
|
|
|
|
* @field: the #GstStructureField to set
|
|
|
|
*
|
|
|
|
* Sets a field in the structure. If the structure currently contains
|
|
|
|
* a field with the same name, it is replaced with the provided field.
|
|
|
|
* Otherwise, the field is added to the structure. The field's value
|
|
|
|
* is not deeply copied.
|
|
|
|
*
|
|
|
|
* This function is intended mainly for internal use. The function
|
|
|
|
* #gst_structure_set() is recommended instead of this one.
|
|
|
|
*/
|
2003-12-22 01:39:35 +00:00
|
|
|
static void gst_structure_set_field(GstStructure *structure, GstStructureField *field)
|
2003-11-03 09:10:07 +00:00
|
|
|
{
|
|
|
|
GstStructureField *f;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for(i=0;i<structure->fields->len;i++){
|
|
|
|
f = GST_STRUCTURE_FIELD(structure, i);
|
|
|
|
|
|
|
|
if(f->name == field->name){
|
|
|
|
g_value_unset(&f->value);
|
|
|
|
memcpy(f,field,sizeof(GstStructureField));
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
g_array_append_val(structure->fields, *field);
|
|
|
|
}
|
|
|
|
|
2004-01-30 19:06:13 +00:00
|
|
|
/* FIXME: is this private ? if so remove gtk-doc
|
2003-11-03 09:10:07 +00:00
|
|
|
* gst_structure_id_get_field:
|
|
|
|
* @structure: a #GstStructure
|
|
|
|
* @field_id: the GQuark of the field to get
|
|
|
|
*
|
|
|
|
* Gets the specified field from the structure. If there is no
|
|
|
|
* field with the given ID, NULL is returned.
|
|
|
|
*
|
|
|
|
* Returns: the #GstStructureField with the given ID
|
|
|
|
*/
|
2003-12-22 01:39:35 +00:00
|
|
|
static GstStructureField *gst_structure_id_get_field(const GstStructure *structure,
|
2003-11-03 09:10:07 +00:00
|
|
|
GQuark field_id)
|
|
|
|
{
|
|
|
|
GstStructureField *field;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
g_return_val_if_fail(structure != NULL, NULL);
|
|
|
|
|
|
|
|
for(i=0;i<structure->fields->len;i++){
|
|
|
|
field = GST_STRUCTURE_FIELD(structure, i);
|
|
|
|
|
|
|
|
if(field->name == field_id) return field;
|
|
|
|
}
|
|
|
|
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* gst_structure_get_field:
|
|
|
|
* @structure: a #GstStructure
|
|
|
|
* @fieldname: the name of the field to get
|
|
|
|
*
|
|
|
|
* Gets the specified field from the structure. If there is no
|
|
|
|
* field with the given ID, NULL is returned.
|
|
|
|
*
|
|
|
|
* Returns: the #GstStructureField with the given name
|
|
|
|
*/
|
2003-12-22 01:39:35 +00:00
|
|
|
static GstStructureField *
|
2003-11-24 02:09:23 +00:00
|
|
|
gst_structure_get_field(const GstStructure *structure, const gchar *fieldname)
|
2003-11-03 09:10:07 +00:00
|
|
|
{
|
|
|
|
g_return_val_if_fail(structure != NULL, NULL);
|
|
|
|
g_return_val_if_fail(fieldname != NULL, NULL);
|
|
|
|
|
|
|
|
return gst_structure_id_get_field(structure,
|
|
|
|
g_quark_from_string(fieldname));
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2003-11-04 05:54:24 +00:00
|
|
|
* gst_structure_get_value:
|
2003-11-03 09:10:07 +00:00
|
|
|
* @structure: a #GstStructure
|
|
|
|
* @fieldname: the name of the field to get
|
|
|
|
*
|
|
|
|
* Accessor function.
|
|
|
|
*
|
|
|
|
* Returns: the #GValue corresponding to the field with the given name.
|
|
|
|
*/
|
|
|
|
const GValue *
|
2003-11-24 02:09:23 +00:00
|
|
|
gst_structure_get_value(const GstStructure *structure, const gchar *fieldname)
|
2003-11-03 09:10:07 +00:00
|
|
|
{
|
|
|
|
GstStructureField *field;
|
|
|
|
|
|
|
|
g_return_val_if_fail(structure != NULL, NULL);
|
|
|
|
g_return_val_if_fail(fieldname != NULL, NULL);
|
|
|
|
|
|
|
|
field = gst_structure_get_field(structure, fieldname);
|
|
|
|
if(field == NULL) return NULL;
|
|
|
|
|
|
|
|
return &field->value;
|
|
|
|
}
|
|
|
|
|
2003-12-22 01:39:35 +00:00
|
|
|
/**
|
|
|
|
* gst_structure_id_get_value:
|
|
|
|
* @structure: a #GstStructure
|
2004-01-30 19:06:13 +00:00
|
|
|
* @field: the #GQuark of the field to get
|
2003-12-22 01:39:35 +00:00
|
|
|
*
|
|
|
|
* Accessor function.
|
|
|
|
*
|
|
|
|
* Returns: the #GValue corresponding to the field with the given name
|
|
|
|
* identifier.
|
|
|
|
*/
|
|
|
|
const GValue *
|
2004-01-30 19:06:13 +00:00
|
|
|
gst_structure_id_get_value(const GstStructure *structure, GQuark field)
|
2003-12-22 01:39:35 +00:00
|
|
|
{
|
2004-01-30 19:11:50 +00:00
|
|
|
GstStructureField *gsfield;
|
2003-12-22 01:39:35 +00:00
|
|
|
|
|
|
|
g_return_val_if_fail(structure != NULL, NULL);
|
|
|
|
|
2004-01-30 19:11:50 +00:00
|
|
|
gsfield = gst_structure_id_get_field(structure, field);
|
|
|
|
if(gsfield == NULL) return NULL;
|
2003-12-22 01:39:35 +00:00
|
|
|
|
2004-01-30 19:11:50 +00:00
|
|
|
return &gsfield->value;
|
2003-12-22 01:39:35 +00:00
|
|
|
}
|
|
|
|
|
2003-11-03 09:10:07 +00:00
|
|
|
/**
|
|
|
|
* gst_structure_remove_field:
|
|
|
|
* @structure: a #GstStructure
|
|
|
|
* @fieldname: the name of the field to remove
|
|
|
|
*
|
|
|
|
* Removes the field with the given name. If the field with the given
|
|
|
|
* name does not exist, the structure is unchanged.
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
gst_structure_remove_field(GstStructure *structure, const gchar *fieldname)
|
|
|
|
{
|
|
|
|
GstStructureField *field;
|
|
|
|
GQuark id;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
g_return_if_fail(structure != NULL);
|
|
|
|
g_return_if_fail(fieldname != NULL);
|
|
|
|
|
|
|
|
id = g_quark_from_string(fieldname);
|
|
|
|
|
|
|
|
for(i=0;i<structure->fields->len;i++){
|
|
|
|
field = GST_STRUCTURE_FIELD(structure, i);
|
|
|
|
|
|
|
|
if(field->name == id){
|
|
|
|
if(G_IS_VALUE(&field->value)){
|
|
|
|
g_value_unset(&field->value);
|
|
|
|
}
|
|
|
|
structure->fields = g_array_remove_index(structure->fields, i);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2004-01-29 02:24:52 +00:00
|
|
|
/**
|
|
|
|
* gst_structure_remove_fields:
|
|
|
|
* @structure: a #GstStructure
|
|
|
|
* @fieldname: the name of the field to remove
|
|
|
|
* @...: NULL-terminated list of more fieldnames to remove
|
|
|
|
*
|
|
|
|
* Removes the field with the given names. If a field does not exist, the
|
|
|
|
* argument is ignored.
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
gst_structure_remove_fields(GstStructure *structure, const gchar *fieldname, ...)
|
|
|
|
{
|
|
|
|
va_list varargs;
|
|
|
|
|
|
|
|
g_return_if_fail (structure != NULL);
|
|
|
|
g_return_if_fail (fieldname != NULL);
|
|
|
|
|
|
|
|
va_start(varargs, fieldname);
|
|
|
|
|
|
|
|
gst_structure_remove_fields_valist (structure, fieldname, varargs);
|
|
|
|
|
|
|
|
va_end(varargs);
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* gst_structure_remove_fields_valist:
|
|
|
|
* @structure: a #GstStructure
|
|
|
|
* @fieldname: the name of the field to remove
|
|
|
|
* @varargs: NULL-terminated list of more fieldnames to remove
|
|
|
|
*
|
|
|
|
* Removes the field with the given names. If a field does not exist, the
|
|
|
|
* argument is ignored.
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
gst_structure_remove_fields_valist(GstStructure *structure,
|
|
|
|
const gchar *fieldname, va_list varargs)
|
|
|
|
{
|
|
|
|
gchar *field = (gchar *) fieldname;
|
|
|
|
g_return_if_fail (structure != NULL);
|
|
|
|
g_return_if_fail (fieldname != NULL);
|
|
|
|
|
|
|
|
while (field) {
|
|
|
|
gst_structure_remove_field (structure, field);
|
|
|
|
field = va_arg (varargs, char *);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2003-11-24 02:09:23 +00:00
|
|
|
/**
|
|
|
|
* gst_structure_remove_all_fields:
|
|
|
|
* @structure: a #GstStructure
|
|
|
|
*
|
|
|
|
* Removes all fields in a GstStructure.
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
gst_structure_remove_all_fields(GstStructure *structure)
|
|
|
|
{
|
|
|
|
GstStructureField *field;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
g_return_if_fail(structure != NULL);
|
|
|
|
|
|
|
|
for (i = structure->fields->len - 1; i >= 0; i-- ) {
|
|
|
|
field = GST_STRUCTURE_FIELD(structure, i);
|
|
|
|
|
|
|
|
if (G_IS_VALUE (&field->value)) {
|
|
|
|
g_value_unset(&field->value);
|
|
|
|
}
|
|
|
|
structure->fields = g_array_remove_index (structure->fields, i);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2003-11-03 09:10:07 +00:00
|
|
|
/**
|
|
|
|
* gst_structure_get_field_type:
|
|
|
|
* @structure: a #GstStructure
|
|
|
|
* @fieldname: the name of the field
|
|
|
|
*
|
|
|
|
* Finds the field with the given name, and returns the type of the
|
2003-11-29 06:31:10 +00:00
|
|
|
* value it contains. If the field is not found, G_TYPE_INVALID is
|
2003-11-03 09:10:07 +00:00
|
|
|
* returned.
|
|
|
|
*
|
|
|
|
* Returns: the #GValue of the field
|
|
|
|
*/
|
|
|
|
GType
|
2003-11-24 02:09:23 +00:00
|
|
|
gst_structure_get_field_type(const GstStructure *structure, const gchar *fieldname)
|
2003-11-03 09:10:07 +00:00
|
|
|
{
|
|
|
|
GstStructureField *field;
|
|
|
|
|
2003-11-29 06:31:10 +00:00
|
|
|
g_return_val_if_fail(structure != NULL, G_TYPE_INVALID);
|
|
|
|
g_return_val_if_fail(fieldname != NULL, G_TYPE_INVALID);
|
2003-11-03 09:10:07 +00:00
|
|
|
|
|
|
|
field = gst_structure_get_field(structure, fieldname);
|
2003-11-29 06:31:10 +00:00
|
|
|
if(field == NULL) return G_TYPE_INVALID;
|
2003-11-03 09:10:07 +00:00
|
|
|
|
|
|
|
return G_VALUE_TYPE(&field->value);
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* gst_structure_n_fields:
|
|
|
|
* @structure: a #GstStructure
|
|
|
|
*
|
|
|
|
* Accessor function.
|
|
|
|
*
|
|
|
|
* Returns: the number of fields in the structure
|
|
|
|
*/
|
|
|
|
gint
|
2003-11-24 02:09:23 +00:00
|
|
|
gst_structure_n_fields(const GstStructure *structure)
|
2003-11-03 09:10:07 +00:00
|
|
|
{
|
|
|
|
g_return_val_if_fail(structure != NULL, 0);
|
|
|
|
|
|
|
|
return structure->fields->len;
|
|
|
|
}
|
|
|
|
|
2003-11-04 19:00:54 +00:00
|
|
|
/**
|
2003-12-22 01:39:35 +00:00
|
|
|
* gst_structure_foreach:
|
2003-11-04 19:00:54 +00:00
|
|
|
* @structure: a #GstStructure
|
|
|
|
* @func: a function to call for each field
|
|
|
|
* @user_data: private data
|
|
|
|
*
|
|
|
|
* Calls the provided function once for each field in the #GstStructure.
|
2004-01-30 19:06:13 +00:00
|
|
|
*
|
|
|
|
* Returns: TRUE if the supplied function returns TRUE For each of the fields,
|
|
|
|
* FALSE otherwise.
|
2003-11-04 19:00:54 +00:00
|
|
|
*/
|
2003-12-22 01:39:35 +00:00
|
|
|
gboolean
|
|
|
|
gst_structure_foreach (GstStructure *structure,
|
2003-11-04 19:00:54 +00:00
|
|
|
GstStructureForeachFunc func, gpointer user_data)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
GstStructureField *field;
|
2003-12-22 01:39:35 +00:00
|
|
|
gboolean ret;
|
2003-11-04 19:00:54 +00:00
|
|
|
|
|
|
|
for(i=0;i<structure->fields->len;i++){
|
|
|
|
field = GST_STRUCTURE_FIELD(structure, i);
|
|
|
|
|
2003-12-22 01:39:35 +00:00
|
|
|
ret = func (field->name, &field->value, user_data);
|
|
|
|
if (!ret) return FALSE;
|
2003-11-04 19:00:54 +00:00
|
|
|
}
|
2003-12-22 01:39:35 +00:00
|
|
|
|
|
|
|
return TRUE;
|
2003-11-04 19:00:54 +00:00
|
|
|
}
|
|
|
|
|
2003-11-03 09:10:07 +00:00
|
|
|
/**
|
|
|
|
* gst_structure_has_field:
|
|
|
|
* @structure: a #GstStructure
|
|
|
|
* @fieldname: the name of a field
|
|
|
|
*
|
|
|
|
* Accessor function.
|
|
|
|
*
|
|
|
|
* Returns: TRUE if the structure contains a field with the given name
|
|
|
|
*/
|
|
|
|
gboolean
|
2003-11-24 02:09:23 +00:00
|
|
|
gst_structure_has_field(const GstStructure *structure, const gchar *fieldname)
|
2003-11-03 09:10:07 +00:00
|
|
|
{
|
|
|
|
GstStructureField *field;
|
|
|
|
|
|
|
|
g_return_val_if_fail(structure != NULL, 0);
|
|
|
|
g_return_val_if_fail(fieldname != NULL, 0);
|
|
|
|
|
|
|
|
field = gst_structure_get_field(structure, fieldname);
|
|
|
|
|
|
|
|
return (field != NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2004-01-30 19:06:13 +00:00
|
|
|
* gst_structure_has_field_typed:
|
2003-11-03 09:10:07 +00:00
|
|
|
* @structure: a #GstStructure
|
|
|
|
* @fieldname: the name of a field
|
|
|
|
* @type: the type of a value
|
|
|
|
*
|
|
|
|
* Accessor function.
|
|
|
|
*
|
|
|
|
* Returns: TRUE if the structure contains a field with the given name and type
|
|
|
|
*/
|
|
|
|
gboolean
|
2003-11-24 02:09:23 +00:00
|
|
|
gst_structure_has_field_typed(const GstStructure *structure, const gchar *fieldname,
|
2003-11-03 09:10:07 +00:00
|
|
|
GType type)
|
|
|
|
{
|
|
|
|
GstStructureField *field;
|
|
|
|
|
|
|
|
g_return_val_if_fail(structure != NULL, 0);
|
|
|
|
g_return_val_if_fail(fieldname != NULL, 0);
|
|
|
|
|
|
|
|
field = gst_structure_get_field(structure, fieldname);
|
|
|
|
if(field == NULL) return FALSE;
|
|
|
|
|
|
|
|
return (G_VALUE_TYPE(&field->value) == type);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* utility functions */
|
|
|
|
|
|
|
|
/**
|
|
|
|
* gst_structure_get_boolean:
|
|
|
|
* @structure: a #GstStructure
|
|
|
|
* @fieldname: the name of a field
|
2004-01-30 19:06:13 +00:00
|
|
|
* @value: a pointer to a #gboolean to set
|
2003-11-03 09:10:07 +00:00
|
|
|
*
|
2004-01-30 19:06:13 +00:00
|
|
|
* Sets the boolean pointed to by @value corresponding to the value of the
|
2003-11-03 09:10:07 +00:00
|
|
|
* given field. Caller is responsible for making sure the field exists
|
|
|
|
* and has the correct type.
|
|
|
|
*
|
|
|
|
* Returns: TRUE if the value could be set correctly
|
|
|
|
*/
|
|
|
|
gboolean
|
2003-11-24 02:09:23 +00:00
|
|
|
gst_structure_get_boolean(const GstStructure *structure, const gchar *fieldname,
|
2003-11-03 09:10:07 +00:00
|
|
|
gboolean *value)
|
|
|
|
{
|
|
|
|
GstStructureField *field;
|
|
|
|
|
|
|
|
g_return_val_if_fail(structure != NULL, FALSE);
|
|
|
|
g_return_val_if_fail(fieldname != NULL, FALSE);
|
|
|
|
|
|
|
|
field = gst_structure_get_field(structure, fieldname);
|
|
|
|
|
|
|
|
if(field == NULL) return FALSE;
|
|
|
|
if(!G_VALUE_HOLDS_BOOLEAN(&field->value))return FALSE;
|
|
|
|
|
|
|
|
*value = g_value_get_boolean(&field->value);
|
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* gst_structure_get_int:
|
|
|
|
* @structure: a #GstStructure
|
|
|
|
* @fieldname: the name of a field
|
2004-01-30 19:06:13 +00:00
|
|
|
* @value: a pointer to an int to set
|
2003-11-03 09:10:07 +00:00
|
|
|
*
|
2004-01-30 19:06:13 +00:00
|
|
|
* Sets the int pointed to by @value corresponding to the value of the
|
2003-11-03 09:10:07 +00:00
|
|
|
* given field. Caller is responsible for making sure the field exists
|
|
|
|
* and has the correct type.
|
|
|
|
*
|
|
|
|
* Returns: TRUE if the value could be set correctly
|
|
|
|
*/
|
|
|
|
gboolean
|
2003-11-24 02:09:23 +00:00
|
|
|
gst_structure_get_int(const GstStructure *structure, const gchar *fieldname,
|
2003-11-03 09:10:07 +00:00
|
|
|
gint *value)
|
|
|
|
{
|
|
|
|
GstStructureField *field;
|
|
|
|
|
|
|
|
g_return_val_if_fail(structure != NULL, FALSE);
|
|
|
|
g_return_val_if_fail(fieldname != NULL, FALSE);
|
|
|
|
g_return_val_if_fail(value != NULL, FALSE);
|
|
|
|
|
|
|
|
field = gst_structure_get_field(structure, fieldname);
|
|
|
|
|
|
|
|
if(field == NULL) return FALSE;
|
|
|
|
if(!G_VALUE_HOLDS_INT(&field->value))return FALSE;
|
|
|
|
|
|
|
|
*value = g_value_get_int(&field->value);
|
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* gst_structure_get_fourcc:
|
|
|
|
* @structure: a #GstStructure
|
|
|
|
* @fieldname: the name of a field
|
2004-01-30 19:06:13 +00:00
|
|
|
* @value: a pointer to a #GstFourcc to set
|
2003-11-03 09:10:07 +00:00
|
|
|
*
|
2004-01-30 19:06:13 +00:00
|
|
|
* Sets the #GstFourcc pointed to by @value corresponding to the value of the
|
2003-11-03 09:10:07 +00:00
|
|
|
* given field. Caller is responsible for making sure the field exists
|
|
|
|
* and has the correct type.
|
|
|
|
*
|
|
|
|
* Returns: TRUE if the value could be set correctly
|
|
|
|
*/
|
|
|
|
gboolean
|
2003-11-24 02:09:23 +00:00
|
|
|
gst_structure_get_fourcc(const GstStructure *structure, const gchar *fieldname,
|
2003-11-03 09:10:07 +00:00
|
|
|
guint32 *value)
|
|
|
|
{
|
|
|
|
GstStructureField *field;
|
|
|
|
|
|
|
|
g_return_val_if_fail(structure != NULL, FALSE);
|
|
|
|
g_return_val_if_fail(fieldname != NULL, FALSE);
|
|
|
|
g_return_val_if_fail(value != NULL, FALSE);
|
|
|
|
|
|
|
|
field = gst_structure_get_field(structure, fieldname);
|
|
|
|
|
|
|
|
if(field == NULL) return FALSE;
|
2003-12-22 01:39:35 +00:00
|
|
|
if(!GST_VALUE_HOLDS_FOURCC(&field->value))return FALSE;
|
2003-11-03 09:10:07 +00:00
|
|
|
|
2003-12-22 01:39:35 +00:00
|
|
|
*value = gst_value_get_fourcc (&field->value);
|
2003-11-03 09:10:07 +00:00
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* gst_structure_get_double:
|
|
|
|
* @structure: a #GstStructure
|
|
|
|
* @fieldname: the name of a field
|
2004-01-30 19:06:13 +00:00
|
|
|
* @value: a pointer to a #GstFourcc to set
|
2003-11-03 09:10:07 +00:00
|
|
|
*
|
2004-01-30 19:06:13 +00:00
|
|
|
* Sets the double pointed to by @value corresponding to the value of the
|
2003-11-03 09:10:07 +00:00
|
|
|
* given field. Caller is responsible for making sure the field exists
|
|
|
|
* and has the correct type.
|
|
|
|
*
|
|
|
|
* Returns: TRUE if the value could be set correctly
|
|
|
|
*/
|
2003-11-24 02:09:23 +00:00
|
|
|
gboolean gst_structure_get_double(const GstStructure *structure,
|
2003-11-03 09:10:07 +00:00
|
|
|
const gchar *fieldname, gdouble *value)
|
|
|
|
{
|
|
|
|
GstStructureField *field;
|
|
|
|
|
|
|
|
g_return_val_if_fail(structure != NULL, FALSE);
|
|
|
|
g_return_val_if_fail(fieldname != NULL, FALSE);
|
|
|
|
g_return_val_if_fail(value != NULL, FALSE);
|
|
|
|
|
|
|
|
field = gst_structure_get_field(structure, fieldname);
|
|
|
|
|
|
|
|
if(field == NULL) return FALSE;
|
|
|
|
if(!G_VALUE_HOLDS_DOUBLE(&field->value))return FALSE;
|
|
|
|
|
|
|
|
*value = g_value_get_double(&field->value);
|
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* gst_structure_get_string:
|
|
|
|
* @structure: a #GstStructure
|
|
|
|
* @fieldname: the name of a field
|
|
|
|
*
|
|
|
|
* Finds the field corresponding to @fieldname, and returns the string
|
|
|
|
* contained in the field's value. Caller is responsible for making
|
|
|
|
* sure the field exists and has the correct type.
|
|
|
|
*
|
|
|
|
* The string should not be modified, and remains valid until the next
|
|
|
|
* call to a gst_structure_*() function with the given structure.
|
|
|
|
*
|
|
|
|
* Returns: a pointer to the string
|
|
|
|
*/
|
|
|
|
const gchar *
|
2003-11-24 02:09:23 +00:00
|
|
|
gst_structure_get_string(const GstStructure *structure, const gchar *fieldname)
|
2003-11-03 09:10:07 +00:00
|
|
|
{
|
|
|
|
GstStructureField *field;
|
|
|
|
|
|
|
|
g_return_val_if_fail(structure != NULL, NULL);
|
|
|
|
g_return_val_if_fail(fieldname != NULL, NULL);
|
|
|
|
|
|
|
|
field = gst_structure_get_field(structure, fieldname);
|
|
|
|
|
|
|
|
if(field == NULL) return FALSE;
|
|
|
|
if(!G_VALUE_HOLDS_STRING(&field->value))return FALSE;
|
|
|
|
|
|
|
|
return g_value_get_string(&field->value);
|
|
|
|
}
|
|
|
|
|
2003-11-29 06:31:10 +00:00
|
|
|
typedef struct _GstStructureAbbreviation {
|
|
|
|
char *type_name;
|
|
|
|
GType type;
|
|
|
|
} GstStructureAbbreviation;
|
|
|
|
|
|
|
|
static GstStructureAbbreviation _gst_structure_abbrs[] = {
|
|
|
|
{ "int", G_TYPE_INT },
|
|
|
|
{ "i", G_TYPE_INT },
|
|
|
|
{ "float", G_TYPE_FLOAT },
|
|
|
|
{ "f", G_TYPE_FLOAT },
|
|
|
|
{ "double", G_TYPE_DOUBLE },
|
|
|
|
{ "d", G_TYPE_DOUBLE },
|
|
|
|
//{ "fourcc", GST_TYPE_FOURCC },
|
|
|
|
{ "boolean", G_TYPE_BOOLEAN },
|
|
|
|
{ "bool", G_TYPE_BOOLEAN },
|
|
|
|
{ "b", G_TYPE_BOOLEAN },
|
|
|
|
{ "string", G_TYPE_STRING },
|
|
|
|
{ "str", G_TYPE_STRING },
|
|
|
|
{ "s", G_TYPE_STRING }
|
|
|
|
};
|
|
|
|
|
|
|
|
static GType _gst_structure_from_abbr(const char *type_name)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
g_return_val_if_fail(type_name != NULL, G_TYPE_INVALID);
|
|
|
|
|
|
|
|
for(i=0;i<G_N_ELEMENTS(_gst_structure_abbrs);i++){
|
|
|
|
if(strcmp(type_name,_gst_structure_abbrs[i].type_name)==0){
|
|
|
|
return _gst_structure_abbrs[i].type;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* FIXME shouldn't be a special case */
|
|
|
|
if (strcmp (type_name,"fourcc") == 0 || strcmp (type_name, "4") == 0) {
|
|
|
|
return GST_TYPE_FOURCC;
|
|
|
|
}
|
|
|
|
|
|
|
|
return g_type_from_name (type_name);
|
|
|
|
}
|
|
|
|
|
|
|
|
static const char *_gst_structure_to_abbr(GType type)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
g_return_val_if_fail(type != G_TYPE_INVALID, NULL);
|
|
|
|
|
|
|
|
for(i=0;i<G_N_ELEMENTS(_gst_structure_abbrs);i++){
|
|
|
|
if(type == _gst_structure_abbrs[i].type){
|
|
|
|
return _gst_structure_abbrs[i].type_name;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* FIXME shouldn't be a special case */
|
|
|
|
if (type == GST_TYPE_FOURCC) {
|
|
|
|
return "fourcc";
|
|
|
|
}
|
|
|
|
|
|
|
|
return g_type_name(type);
|
|
|
|
}
|
|
|
|
|
2003-12-22 01:39:35 +00:00
|
|
|
#define GST_ASCII_IS_STRING(c) (g_ascii_isalnum((c)) || ((c) == '_') || \
|
|
|
|
((c) == '-') || ((c) == '+') || ((c) == '/') || ((c) == ':') || \
|
|
|
|
((c) == '.'))
|
|
|
|
|
2003-11-03 09:10:07 +00:00
|
|
|
/**
|
|
|
|
* gst_structure_to_string:
|
|
|
|
* @structure: a #GstStructure
|
|
|
|
*
|
|
|
|
* Converts @structure to a human-readable representation.
|
|
|
|
*
|
|
|
|
* Returns: a pointer to string allocated by g_malloc()
|
|
|
|
*/
|
|
|
|
gchar *
|
2003-11-24 02:09:23 +00:00
|
|
|
gst_structure_to_string(const GstStructure *structure)
|
2003-11-03 09:10:07 +00:00
|
|
|
{
|
|
|
|
GstStructureField *field;
|
|
|
|
GString *s;
|
|
|
|
int i;
|
configure.ac: Add detection for HAVE_PRINTF_EXTENSION and
Original commit message from CVS:
* configure.ac: Add detection for HAVE_PRINTF_EXTENSION and
GST_PRINTF_EXTENSION_FORMAT_DEFINE.
* docs/random/ds/0.9-suggested-changes: Notes from Company.
* gst/gstcaps.c: (gst_caps_to_string): Add comment.
* gst/gstconfig.h.in: Add define for GST_PTR_FORMAT
* gst/gstinfo.c: (_gst_debug_init), (gst_debug_print_object),
(gst_debug_log_default), (_gst_info_printf_extension),
(_gst_info_printf_extension_arginfo): Add printf extension.
* gst/gstinfo.h: remove G_GNUC_PRINTF, because it doesn't work with %P
* gst/gststructure.c: (gst_structure_to_string),
(_gst_structure_parse_value): Use gst_value_deserialize() and
remove old code.
* gst/gstvalue.c: (gst_value_deserialize_fourcc),
(gst_value_deserialize_boolean), (gst_strtoi),
(gst_value_deserialize_int), (gst_value_deserialize_double),
(gst_value_deserialize_string), (gst_value_deserialize): Implement
a bunch of deserialize functions and gst_value_deserialize.
* gst/gstvalue.h: er, _de_serialize, not unserialize
* testsuite/caps/string-conversions.c: (main): We don't currently
handle (float) in caps, so convert these to (double).
* testsuite/debug/Makefile.am: Add new test for the printf extension
* testsuite/debug/printf_extension.c: (main): same
2004-01-29 01:20:23 +00:00
|
|
|
|
|
|
|
/* NOTE: This function is potentially called by the debug system,
|
|
|
|
* so any calls to gst_log() (and GST_DEBUG(), GST_LOG(), etc.)
|
|
|
|
* should be careful to avoid recursion. This includes any functions
|
|
|
|
* called by gst_structure_to_string. In particular, calls should
|
|
|
|
* not use the GST_PTR_FORMAT extension. */
|
2003-11-03 09:10:07 +00:00
|
|
|
|
|
|
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g_return_val_if_fail(structure != NULL, NULL);
|
|
|
|
|
|
|
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s = g_string_new("");
|
2003-12-22 01:39:35 +00:00
|
|
|
/* FIXME this string may need to be escaped */
|
|
|
|
g_string_append_printf(s, "%s", g_quark_to_string(structure->name));
|
|
|
|
for(i=0;i<structure->fields->len;i++) {
|
gst/gststructure.c: Convert function to use gst_value_serialize().
Original commit message from CVS:
* gst/gststructure.c: (gst_structure_to_string):
Convert function to use gst_value_serialize().
* gst/gstvalue.c: (gst_value_serialize_list),
(gst_value_serialize_fourcc), (gst_value_serialize_int_range),
(gst_value_serialize_double_range), (gst_value_serialize_boolean),
(gst_value_serialize_int), (gst_value_serialize_double),
(gst_string_wrap), (gst_value_serialize_string),
(gst_value_serialize), (gst_value_deserialize):
* gst/gstvalue.h:
Add implementations for serialize.
2004-01-20 09:14:25 +00:00
|
|
|
char *t;
|
2003-11-29 06:31:10 +00:00
|
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GType type;
|
2003-11-03 09:10:07 +00:00
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|
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field = GST_STRUCTURE_FIELD(structure, i);
|
|
|
|
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gst/gststructure.c: Convert function to use gst_value_serialize().
Original commit message from CVS:
* gst/gststructure.c: (gst_structure_to_string):
Convert function to use gst_value_serialize().
* gst/gstvalue.c: (gst_value_serialize_list),
(gst_value_serialize_fourcc), (gst_value_serialize_int_range),
(gst_value_serialize_double_range), (gst_value_serialize_boolean),
(gst_value_serialize_int), (gst_value_serialize_double),
(gst_string_wrap), (gst_value_serialize_string),
(gst_value_serialize), (gst_value_deserialize):
* gst/gstvalue.h:
Add implementations for serialize.
2004-01-20 09:14:25 +00:00
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t = gst_value_serialize (&field->value);
|
2003-11-29 06:31:10 +00:00
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type = G_VALUE_TYPE (&field->value);
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if (type == GST_TYPE_LIST) {
|
2003-12-22 01:39:35 +00:00
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GArray *array = g_value_peek_pointer (&field->value);
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if (array->len > 0){
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GValue *value = &g_array_index (array, GValue, 0);
|
2003-11-29 06:31:10 +00:00
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type = G_VALUE_TYPE (value);
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} else {
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type = G_TYPE_INT;
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}
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} else if (G_VALUE_TYPE(&field->value) == GST_TYPE_INT_RANGE) {
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type = G_TYPE_INT;
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} else if (G_VALUE_TYPE(&field->value) == GST_TYPE_DOUBLE_RANGE) {
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type = G_TYPE_DOUBLE;
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}
|
2003-12-22 01:39:35 +00:00
|
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g_string_append_printf(s, ", %s=(%s)%s", g_quark_to_string(field->name),
|
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_gst_structure_to_abbr(type), t);
|
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g_free(t);
|
2003-11-03 09:10:07 +00:00
|
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}
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return g_string_free(s, FALSE);
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|
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}
|
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2003-11-29 06:31:10 +00:00
|
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/*
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|
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|
* r will still point to the string. if end == next, the string will not be
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|
|
|
* null-terminated. In all other cases it will be.
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|
* end = pointer to char behind end of string, next = pointer to start of
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* unread data.
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|
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* THIS FUNCTION MODIFIES THE STRING AND DETECTS INSIDE A NONTERMINATED STRING
|
|
|
|
*/
|
2003-12-22 01:39:35 +00:00
|
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static gboolean _gst_structure_parse_simple_string (gchar *s, gchar **end);
|
2003-11-29 06:31:10 +00:00
|
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static gboolean
|
2003-12-22 01:39:35 +00:00
|
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|
_gst_structure_parse_string (gchar *s, gchar **end, gchar **next)
|
2003-11-29 06:31:10 +00:00
|
|
|
{
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|
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|
gchar *w;
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|
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2003-12-22 01:39:35 +00:00
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if (*s == 0) return FALSE;
|
2003-11-29 06:31:10 +00:00
|
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2003-12-22 01:39:35 +00:00
|
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if (*s != '"') {
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int ret;
|
2003-11-29 06:31:10 +00:00
|
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|
|
2003-12-22 01:39:35 +00:00
|
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ret = _gst_structure_parse_simple_string (s, end);
|
|
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*next = *end;
|
2003-11-29 06:31:10 +00:00
|
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|
|
2003-12-22 01:39:35 +00:00
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return ret;
|
|
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|
}
|
2003-11-29 06:31:10 +00:00
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|
2003-12-22 01:39:35 +00:00
|
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w = s;
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|
s++;
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while (*s != '"') {
|
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|
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if (*s == 0) return FALSE;
|
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|
|
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|
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if (*s == '\\') {
|
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|
s++;
|
2003-11-29 06:31:10 +00:00
|
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}
|
2003-12-22 01:39:35 +00:00
|
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*w = *s;
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|
w++;
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s++;
|
2003-11-29 06:31:10 +00:00
|
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}
|
2003-12-22 01:39:35 +00:00
|
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s++;
|
2003-11-29 06:31:10 +00:00
|
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*end = w;
|
2003-12-22 01:39:35 +00:00
|
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*next = s;
|
2003-11-29 06:31:10 +00:00
|
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|
2003-12-22 01:39:35 +00:00
|
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|
return TRUE;
|
2003-11-29 06:31:10 +00:00
|
|
|
}
|
|
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2003-12-22 01:39:35 +00:00
|
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|
static gboolean _gst_structure_parse_value (gchar *str, gchar **after,
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|
|
|
GValue *value, GType default_type);
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|
|
|
2003-11-29 06:31:10 +00:00
|
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|
static gboolean
|
2003-12-22 01:39:35 +00:00
|
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|
_gst_structure_parse_range (gchar *s, gchar **after, GValue *value, GType type)
|
2003-11-29 06:31:10 +00:00
|
|
|
{
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|
|
|
GValue value1 = { 0 };
|
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|
|
GValue value2 = { 0 };
|
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|
|
GType range_type;
|
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|
gboolean ret;
|
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|
|
|
|
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if (*s != '[') return FALSE;
|
|
|
|
s++;
|
|
|
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|
2003-12-22 01:39:35 +00:00
|
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ret = _gst_structure_parse_value(s, &s, &value1, type);
|
2003-11-29 06:31:10 +00:00
|
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|
if (ret == FALSE) return FALSE;
|
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|
|
|
|
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while (g_ascii_isspace (*s)) s++;
|
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|
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if (*s != ',') return FALSE;
|
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s++;
|
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while (g_ascii_isspace (*s)) s++;
|
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|
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2003-12-22 01:39:35 +00:00
|
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ret = _gst_structure_parse_value(s, &s, &value2, type);
|
2003-11-29 06:31:10 +00:00
|
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if (ret == FALSE) return FALSE;
|
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|
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while (g_ascii_isspace (*s)) s++;
|
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if (*s != ']') return FALSE;
|
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s++;
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|
2003-12-22 01:39:35 +00:00
|
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if (G_VALUE_TYPE (&value1) != G_VALUE_TYPE (&value2)) return FALSE;
|
|
|
|
|
|
|
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if (G_VALUE_TYPE (&value1) == G_TYPE_DOUBLE) {
|
|
|
|
range_type = GST_TYPE_DOUBLE_RANGE;
|
|
|
|
} else if (G_VALUE_TYPE (&value1) == G_TYPE_INT) {
|
|
|
|
range_type = GST_TYPE_INT_RANGE;
|
|
|
|
} else {
|
|
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|
return FALSE;
|
|
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|
}
|
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|
2003-11-29 06:31:10 +00:00
|
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|
g_value_init(value, range_type);
|
|
|
|
if (range_type == GST_TYPE_DOUBLE_RANGE) {
|
|
|
|
gst_value_set_double_range(value, g_value_get_double(&value1),
|
|
|
|
g_value_get_double(&value2));
|
|
|
|
} else {
|
|
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gst_value_set_int_range(value, g_value_get_int(&value1),
|
|
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g_value_get_int(&value2));
|
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|
}
|
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|
|
|
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|
*after = s;
|
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|
return TRUE;
|
|
|
|
}
|
|
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|
|
|
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|
static gboolean
|
2003-12-22 01:39:35 +00:00
|
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|
_gst_structure_parse_list (gchar *s, gchar **after, GValue *value, GType type)
|
2003-11-29 06:31:10 +00:00
|
|
|
{
|
|
|
|
GValue list_value = { 0 };
|
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|
|
gboolean ret;
|
2003-12-22 01:39:35 +00:00
|
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|
GArray *array;
|
2003-11-29 06:31:10 +00:00
|
|
|
|
|
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|
g_value_init(value, GST_TYPE_LIST);
|
2003-12-22 01:39:35 +00:00
|
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|
array = g_value_peek_pointer (value);
|
2003-11-29 06:31:10 +00:00
|
|
|
|
2003-12-22 01:39:35 +00:00
|
|
|
if (*s != '{') return FALSE;
|
2003-11-29 06:31:10 +00:00
|
|
|
s++;
|
|
|
|
|
|
|
|
while (g_ascii_isspace (*s)) s++;
|
2003-12-22 01:39:35 +00:00
|
|
|
if (*s == '}') {
|
2003-11-29 06:31:10 +00:00
|
|
|
s++;
|
|
|
|
*after = s;
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
2003-12-22 01:39:35 +00:00
|
|
|
ret = _gst_structure_parse_value(s, &s, &list_value, type);
|
2003-11-29 06:31:10 +00:00
|
|
|
if (ret == FALSE) return FALSE;
|
2003-12-22 01:39:35 +00:00
|
|
|
|
|
|
|
g_array_append_val (array, list_value);
|
2003-11-29 06:31:10 +00:00
|
|
|
|
|
|
|
while (g_ascii_isspace (*s)) s++;
|
|
|
|
|
2003-12-22 01:39:35 +00:00
|
|
|
while (*s != '}') {
|
2003-11-29 06:31:10 +00:00
|
|
|
if (*s != ',') return FALSE;
|
|
|
|
s++;
|
|
|
|
|
|
|
|
while (g_ascii_isspace (*s)) s++;
|
|
|
|
|
|
|
|
memset (&list_value, 0, sizeof (list_value));
|
2003-12-22 01:39:35 +00:00
|
|
|
ret = _gst_structure_parse_value(s, &s, &list_value, type);
|
2003-11-29 06:31:10 +00:00
|
|
|
if (ret == FALSE) return FALSE;
|
|
|
|
|
2003-12-22 01:39:35 +00:00
|
|
|
g_array_append_val (array, list_value);
|
2003-11-29 06:31:10 +00:00
|
|
|
while (g_ascii_isspace (*s)) s++;
|
|
|
|
}
|
|
|
|
|
|
|
|
s++;
|
|
|
|
|
|
|
|
*after = s;
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
2003-12-22 01:39:35 +00:00
|
|
|
static gboolean
|
|
|
|
_gst_structure_parse_simple_string (gchar *str, gchar **end)
|
|
|
|
{
|
|
|
|
char *s = str;
|
|
|
|
|
|
|
|
while(GST_ASCII_IS_STRING(*s)){
|
|
|
|
s++;
|
|
|
|
}
|
|
|
|
|
|
|
|
*end = s;
|
|
|
|
|
|
|
|
return (s != str);
|
|
|
|
}
|
|
|
|
|
2003-11-29 06:31:10 +00:00
|
|
|
static gboolean
|
|
|
|
_gst_structure_parse_field (gchar *str, gchar **after, GstStructureField *field)
|
|
|
|
{
|
|
|
|
gchar *name;
|
2003-12-22 01:39:35 +00:00
|
|
|
gchar *name_end;
|
|
|
|
gchar *s;
|
|
|
|
gchar c;
|
2003-11-29 06:31:10 +00:00
|
|
|
|
2003-12-22 01:39:35 +00:00
|
|
|
s = str;
|
|
|
|
|
|
|
|
while(g_ascii_isspace (*s)) s++;
|
|
|
|
name = s;
|
|
|
|
if (!_gst_structure_parse_simple_string (s, &name_end)) return FALSE;
|
|
|
|
|
|
|
|
s = name_end;
|
|
|
|
while(g_ascii_isspace (*s)) s++;
|
|
|
|
|
|
|
|
if (*s != '=') return FALSE;
|
2003-11-29 06:31:10 +00:00
|
|
|
s++;
|
|
|
|
|
2003-12-22 01:39:35 +00:00
|
|
|
c = *name_end;
|
|
|
|
*name_end = 0;
|
2003-11-29 06:31:10 +00:00
|
|
|
field->name = g_quark_from_string (name);
|
2003-12-22 01:39:35 +00:00
|
|
|
*name_end = c;
|
2003-11-29 06:31:10 +00:00
|
|
|
|
2003-12-22 01:39:35 +00:00
|
|
|
if (!_gst_structure_parse_value (s, &s, &field->value, G_TYPE_INVALID))
|
|
|
|
return FALSE;
|
|
|
|
|
|
|
|
*after = s;
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
static gboolean
|
|
|
|
_gst_structure_parse_value (gchar *str, gchar **after, GValue *value,
|
|
|
|
GType default_type)
|
|
|
|
{
|
|
|
|
gchar *type_name;
|
|
|
|
gchar *type_end;
|
|
|
|
gchar *value_s;
|
|
|
|
gchar *value_end;
|
|
|
|
gchar *s;
|
|
|
|
gchar c;
|
2004-01-07 13:13:03 +00:00
|
|
|
int ret = 0;
|
2003-12-22 01:39:35 +00:00
|
|
|
GType type = default_type;
|
|
|
|
|
|
|
|
|
|
|
|
s = str;
|
|
|
|
while(g_ascii_isspace (*s)) s++;
|
|
|
|
|
|
|
|
type_name = NULL;
|
|
|
|
if (*s == '(') {
|
|
|
|
type = G_TYPE_INVALID;
|
|
|
|
|
|
|
|
s++;
|
|
|
|
while(g_ascii_isspace (*s)) s++;
|
2003-11-29 06:31:10 +00:00
|
|
|
type_name = s;
|
2003-12-22 01:39:35 +00:00
|
|
|
if (!_gst_structure_parse_simple_string (s, &type_end)) return FALSE;
|
|
|
|
s = type_end;
|
|
|
|
while(g_ascii_isspace (*s)) s++;
|
|
|
|
if (*s != ')') return FALSE;
|
2003-11-29 06:31:10 +00:00
|
|
|
s++;
|
2003-12-22 01:39:35 +00:00
|
|
|
while(g_ascii_isspace (*s)) s++;
|
|
|
|
|
|
|
|
c = *type_end;
|
|
|
|
*type_end = 0;
|
2003-11-29 06:31:10 +00:00
|
|
|
type = _gst_structure_from_abbr(type_name);
|
2003-12-22 01:39:35 +00:00
|
|
|
*type_end = c;
|
2003-11-29 06:31:10 +00:00
|
|
|
|
|
|
|
if (type == G_TYPE_INVALID) return FALSE;
|
|
|
|
}
|
|
|
|
|
2003-12-22 01:39:35 +00:00
|
|
|
while(g_ascii_isspace (*s)) s++;
|
2003-11-29 06:31:10 +00:00
|
|
|
if (*s == '[') {
|
2003-12-22 01:39:35 +00:00
|
|
|
ret = _gst_structure_parse_range (s, &s, value, type);
|
|
|
|
} else if (*s == '{') {
|
|
|
|
ret = _gst_structure_parse_list (s, &s, value, type);
|
2003-11-29 06:31:10 +00:00
|
|
|
} else {
|
2003-12-22 01:39:35 +00:00
|
|
|
value_s = s;
|
|
|
|
if (!_gst_structure_parse_string (s, &value_end, &s)) return FALSE;
|
|
|
|
|
|
|
|
c = *value_end;
|
|
|
|
*value_end = 0;
|
|
|
|
if (type == G_TYPE_INVALID) {
|
|
|
|
GType try_types[] = { G_TYPE_INT, G_TYPE_DOUBLE, G_TYPE_STRING };
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for(i=0;i<3;i++) {
|
|
|
|
g_value_init(value, try_types[i]);
|
configure.ac: Add detection for HAVE_PRINTF_EXTENSION and
Original commit message from CVS:
* configure.ac: Add detection for HAVE_PRINTF_EXTENSION and
GST_PRINTF_EXTENSION_FORMAT_DEFINE.
* docs/random/ds/0.9-suggested-changes: Notes from Company.
* gst/gstcaps.c: (gst_caps_to_string): Add comment.
* gst/gstconfig.h.in: Add define for GST_PTR_FORMAT
* gst/gstinfo.c: (_gst_debug_init), (gst_debug_print_object),
(gst_debug_log_default), (_gst_info_printf_extension),
(_gst_info_printf_extension_arginfo): Add printf extension.
* gst/gstinfo.h: remove G_GNUC_PRINTF, because it doesn't work with %P
* gst/gststructure.c: (gst_structure_to_string),
(_gst_structure_parse_value): Use gst_value_deserialize() and
remove old code.
* gst/gstvalue.c: (gst_value_deserialize_fourcc),
(gst_value_deserialize_boolean), (gst_strtoi),
(gst_value_deserialize_int), (gst_value_deserialize_double),
(gst_value_deserialize_string), (gst_value_deserialize): Implement
a bunch of deserialize functions and gst_value_deserialize.
* gst/gstvalue.h: er, _de_serialize, not unserialize
* testsuite/caps/string-conversions.c: (main): We don't currently
handle (float) in caps, so convert these to (double).
* testsuite/debug/Makefile.am: Add new test for the printf extension
* testsuite/debug/printf_extension.c: (main): same
2004-01-29 01:20:23 +00:00
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ret = gst_value_deserialize (value, value_s);
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2003-12-22 01:39:35 +00:00
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if (ret) break;
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g_value_unset(value);
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}
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} else {
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g_value_init(value, type);
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configure.ac: Add detection for HAVE_PRINTF_EXTENSION and
Original commit message from CVS:
* configure.ac: Add detection for HAVE_PRINTF_EXTENSION and
GST_PRINTF_EXTENSION_FORMAT_DEFINE.
* docs/random/ds/0.9-suggested-changes: Notes from Company.
* gst/gstcaps.c: (gst_caps_to_string): Add comment.
* gst/gstconfig.h.in: Add define for GST_PTR_FORMAT
* gst/gstinfo.c: (_gst_debug_init), (gst_debug_print_object),
(gst_debug_log_default), (_gst_info_printf_extension),
(_gst_info_printf_extension_arginfo): Add printf extension.
* gst/gstinfo.h: remove G_GNUC_PRINTF, because it doesn't work with %P
* gst/gststructure.c: (gst_structure_to_string),
(_gst_structure_parse_value): Use gst_value_deserialize() and
remove old code.
* gst/gstvalue.c: (gst_value_deserialize_fourcc),
(gst_value_deserialize_boolean), (gst_strtoi),
(gst_value_deserialize_int), (gst_value_deserialize_double),
(gst_value_deserialize_string), (gst_value_deserialize): Implement
a bunch of deserialize functions and gst_value_deserialize.
* gst/gstvalue.h: er, _de_serialize, not unserialize
* testsuite/caps/string-conversions.c: (main): We don't currently
handle (float) in caps, so convert these to (double).
* testsuite/debug/Makefile.am: Add new test for the printf extension
* testsuite/debug/printf_extension.c: (main): same
2004-01-29 01:20:23 +00:00
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ret = gst_value_deserialize (value, value_s);
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2003-12-22 01:39:35 +00:00
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}
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*value_end = c;
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2003-11-29 06:31:10 +00:00
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}
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*after = s;
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return ret;
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}
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2003-11-03 09:10:07 +00:00
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/**
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* gst_structure_from_string:
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2004-01-30 19:06:13 +00:00
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* @string: a string representation of a #GstStructure.
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* @end: FIXME, deduce from code
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2003-11-03 09:10:07 +00:00
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*
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* Creates a #GstStructure from a string representation.
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*
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* Returns: a new #GstStructure
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*/
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GstStructure *
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2003-11-29 06:31:10 +00:00
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gst_structure_from_string (const gchar *string, gchar **end)
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2003-11-03 09:10:07 +00:00
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{
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2003-11-29 06:31:10 +00:00
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char *name;
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char *copy;
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char *w;
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char *r;
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char save;
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2004-02-05 13:32:09 +00:00
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GstStructure *structure;
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2003-11-29 06:31:10 +00:00
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GstStructureField field = { 0 };
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2004-02-05 13:32:09 +00:00
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gboolean res;
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2003-11-03 09:10:07 +00:00
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g_return_val_if_fail(string != NULL, NULL);
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2003-11-29 06:31:10 +00:00
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copy = g_strdup(string);
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r = copy;
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2003-11-03 09:10:07 +00:00
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2003-11-29 06:31:10 +00:00
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name = r;
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2004-02-05 13:32:09 +00:00
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res = _gst_structure_parse_string (r, &w, &r);
|
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if (!res) return NULL;
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2003-11-29 06:31:10 +00:00
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while (g_ascii_isspace(*r)) r++;
|
2004-02-05 13:32:09 +00:00
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if(*r != 0 && *r != ';' && *r != ',') return NULL;
|
2003-11-29 06:31:10 +00:00
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save = *w;
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*w = 0;
|
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structure = gst_structure_empty_new(name);
|
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*w = save;
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|
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while (*r && (*r != ';')){
|
2004-02-05 13:32:09 +00:00
|
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|
if(*r != ',') {
|
|
|
|
return NULL;
|
|
|
|
}
|
2003-11-29 06:31:10 +00:00
|
|
|
r++;
|
|
|
|
while (*r && g_ascii_isspace(*r)) r++;
|
|
|
|
|
|
|
|
memset(&field,0,sizeof(field));
|
2004-02-05 13:32:09 +00:00
|
|
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res = _gst_structure_parse_field (r, &r, &field);
|
|
|
|
if (!res) {
|
|
|
|
gst_structure_free (structure);
|
|
|
|
return NULL;
|
|
|
|
}
|
2003-11-29 06:31:10 +00:00
|
|
|
gst_structure_set_field(structure, &field);
|
|
|
|
while (*r && g_ascii_isspace(*r)) r++;
|
|
|
|
}
|
|
|
|
|
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|
|
if (end) *end = (char *)string + (r - copy);
|
|
|
|
return structure;
|
2003-11-03 09:10:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
_gst_structure_transform_to_string(const GValue *src_value, GValue *dest_value)
|
|
|
|
{
|
|
|
|
g_return_if_fail(src_value != NULL);
|
|
|
|
g_return_if_fail(dest_value != NULL);
|
|
|
|
|
|
|
|
dest_value->data[0].v_pointer =
|
|
|
|
gst_structure_to_string (src_value->data[0].v_pointer);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void _gst_structure_value_init (GValue *value)
|
|
|
|
{
|
|
|
|
value->data[0].v_pointer = gst_structure_empty_new("");
|
|
|
|
}
|
|
|
|
|
|
|
|
static void _gst_structure_value_free (GValue *value)
|
|
|
|
{
|
|
|
|
gst_structure_free(value->data[0].v_pointer);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
static void _gst_structure_value_copy (const GValue *src, GValue *dest)
|
|
|
|
{
|
2003-11-04 05:54:24 +00:00
|
|
|
dest->data[0].v_pointer = gst_structure_copy(src->data[0].v_pointer);
|
2003-11-03 09:10:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static gpointer _gst_structure_value_peek_pointer (const GValue *value)
|
|
|
|
{
|
|
|
|
return value->data[0].v_pointer;
|
|
|
|
}
|
|
|
|
|