mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-01 12:20:42 +00:00
401f9b3de7
Fixes negotiation taking a ridiculous amount of time (multiple 10s of seconds on a core2) when there are duplicate entries in lists. Could have a negative performance impact on other scenarios because we now have to iterate the dest list to avoid duplicates, but we don't have a lot of lists any more these days, and they tend to be small anyway. The negatives are hopefully countered by the positive effects of reducing the list length early on in the process. And in any case, it's the right thing to do. Based on patch by Andre Moreira Magalhaes. https://bugzilla.gnome.org/show_bug.cgi?id=684981
5197 lines
141 KiB
C
5197 lines
141 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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/**
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* SECTION:gstvalue
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* @short_description: GValue implementations specific
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* to GStreamer
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*
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* GValue implementations specific to GStreamer.
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*
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* Note that operations on the same #GValue from multiple threads may lead to
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* undefined behaviour.
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*
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* Last reviewed on 2008-03-11 (0.10.18)
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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 <math.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include "gst_private.h"
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#include "glib-compat-private.h"
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#include <gst/gst.h>
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#include <gobject/gvaluecollector.h>
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#include "gstutils.h"
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typedef struct _GstValueUnionInfo GstValueUnionInfo;
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struct _GstValueUnionInfo
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{
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GType type1;
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GType type2;
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GstValueUnionFunc func;
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};
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typedef struct _GstValueIntersectInfo GstValueIntersectInfo;
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struct _GstValueIntersectInfo
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{
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GType type1;
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GType type2;
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GstValueIntersectFunc func;
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};
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typedef struct _GstValueSubtractInfo GstValueSubtractInfo;
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struct _GstValueSubtractInfo
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{
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GType minuend;
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GType subtrahend;
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GstValueSubtractFunc func;
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};
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#define FUNDAMENTAL_TYPE_ID_MAX \
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(G_TYPE_FUNDAMENTAL_MAX >> G_TYPE_FUNDAMENTAL_SHIFT)
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#define FUNDAMENTAL_TYPE_ID(type) \
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((type) >> G_TYPE_FUNDAMENTAL_SHIFT)
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#define VALUE_LIST_SIZE(v) (((GArray *) (v)->data[0].v_pointer)->len)
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#define VALUE_LIST_GET_VALUE(v, index) ((const GValue *) &g_array_index ((GArray *) (v)->data[0].v_pointer, GValue, (index)))
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static GArray *gst_value_table;
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static GHashTable *gst_value_hash;
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static GstValueTable *gst_value_tables_fundamental[FUNDAMENTAL_TYPE_ID_MAX + 1];
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static GArray *gst_value_union_funcs;
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static GArray *gst_value_intersect_funcs;
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static GArray *gst_value_subtract_funcs;
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/* Forward declarations */
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static gchar *gst_value_serialize_fraction (const GValue * value);
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static GstValueCompareFunc gst_value_get_compare_func (const GValue * value1);
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static gint gst_value_compare_with_func (const GValue * value1,
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const GValue * value2, GstValueCompareFunc compare);
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static gchar *gst_string_wrap (const gchar * s);
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static gchar *gst_string_take_and_wrap (gchar * s);
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static gchar *gst_string_unwrap (const gchar * s);
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static inline GstValueTable *
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gst_value_hash_lookup_type (GType type)
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{
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if (G_LIKELY (G_TYPE_IS_FUNDAMENTAL (type)))
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return gst_value_tables_fundamental[FUNDAMENTAL_TYPE_ID (type)];
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else
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return g_hash_table_lookup (gst_value_hash, (gpointer) type);
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}
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static void
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gst_value_hash_add_type (GType type, const GstValueTable * table)
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{
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if (G_TYPE_IS_FUNDAMENTAL (type))
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gst_value_tables_fundamental[FUNDAMENTAL_TYPE_ID (type)] = (gpointer) table;
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g_hash_table_insert (gst_value_hash, (gpointer) type, (gpointer) table);
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}
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/********
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* list *
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********/
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/* two helper functions to serialize/stringify any type of list
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* regular lists are done with { }, arrays with < >
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*/
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static gchar *
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gst_value_serialize_any_list (const GValue * value, const gchar * begin,
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const gchar * end)
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{
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guint i;
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GArray *array = value->data[0].v_pointer;
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GString *s;
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GValue *v;
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gchar *s_val;
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guint alen = array->len;
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/* estimate minimum string length to minimise re-allocs in GString */
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s = g_string_sized_new (2 + (6 * alen) + 2);
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g_string_append (s, begin);
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for (i = 0; i < alen; i++) {
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v = &g_array_index (array, GValue, i);
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s_val = gst_value_serialize (v);
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g_string_append (s, s_val);
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g_free (s_val);
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if (i < alen - 1) {
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g_string_append_len (s, ", ", 2);
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}
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}
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g_string_append (s, end);
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return g_string_free (s, FALSE);
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}
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static void
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gst_value_transform_any_list_string (const GValue * src_value,
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GValue * dest_value, const gchar * begin, const gchar * end)
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{
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GValue *list_value;
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GArray *array;
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GString *s;
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guint i;
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gchar *list_s;
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guint alen;
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array = src_value->data[0].v_pointer;
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alen = array->len;
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/* estimate minimum string length to minimise re-allocs in GString */
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s = g_string_sized_new (2 + (10 * alen) + 2);
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g_string_append (s, begin);
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for (i = 0; i < alen; i++) {
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list_value = &g_array_index (array, GValue, i);
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if (i != 0) {
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g_string_append_len (s, ", ", 2);
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}
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list_s = g_strdup_value_contents (list_value);
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g_string_append (s, list_s);
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g_free (list_s);
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}
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g_string_append (s, end);
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dest_value->data[0].v_pointer = g_string_free (s, FALSE);
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}
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/*
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* helper function to see if a type is fixed. Is used internally here and
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* there. Do not export, since it doesn't work for types where the content
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* decides the fixedness (e.g. GST_TYPE_ARRAY).
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*/
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static gboolean
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gst_type_is_fixed (GType type)
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{
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/* the basic int, string, double types */
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if (type <= G_TYPE_MAKE_FUNDAMENTAL (G_TYPE_RESERVED_GLIB_LAST)) {
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return TRUE;
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}
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/* our fundamental types that are certainly not fixed */
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if (type == GST_TYPE_INT_RANGE || type == GST_TYPE_DOUBLE_RANGE ||
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type == GST_TYPE_INT64_RANGE ||
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type == GST_TYPE_LIST || type == GST_TYPE_FRACTION_RANGE) {
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return FALSE;
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}
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/* other (boxed) types that are fixed */
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if (type == GST_TYPE_BUFFER) {
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return TRUE;
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}
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/* heavy checks */
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if (G_TYPE_IS_FUNDAMENTAL (type) || G_TYPE_FUNDAMENTAL (type) <=
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G_TYPE_MAKE_FUNDAMENTAL (G_TYPE_RESERVED_GLIB_LAST)) {
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return TRUE;
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}
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return FALSE;
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}
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/* GValue functions usable for both regular lists and arrays */
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static void
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gst_value_init_list_or_array (GValue * value)
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{
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value->data[0].v_pointer = g_array_new (FALSE, TRUE, sizeof (GValue));
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}
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static GArray *
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copy_garray_of_gstvalue (const GArray * src)
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{
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GArray *dest;
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guint i, len;
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len = src->len;
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dest = g_array_sized_new (FALSE, TRUE, sizeof (GValue), len);
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g_array_set_size (dest, len);
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for (i = 0; i < len; i++) {
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gst_value_init_and_copy (&g_array_index (dest, GValue, i),
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&g_array_index (src, GValue, i));
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}
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return dest;
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}
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static void
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gst_value_copy_list_or_array (const GValue * src_value, GValue * dest_value)
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{
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dest_value->data[0].v_pointer =
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copy_garray_of_gstvalue ((GArray *) src_value->data[0].v_pointer);
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}
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static void
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gst_value_free_list_or_array (GValue * value)
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{
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guint i, len;
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GArray *src = (GArray *) value->data[0].v_pointer;
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len = src->len;
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if ((value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS) == 0) {
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for (i = 0; i < len; i++) {
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g_value_unset (&g_array_index (src, GValue, i));
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}
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g_array_free (src, TRUE);
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}
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}
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static gpointer
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gst_value_list_or_array_peek_pointer (const GValue * value)
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{
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return value->data[0].v_pointer;
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}
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static gchar *
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gst_value_collect_list_or_array (GValue * value, guint n_collect_values,
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GTypeCValue * collect_values, guint collect_flags)
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{
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if (collect_flags & G_VALUE_NOCOPY_CONTENTS) {
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value->data[0].v_pointer = collect_values[0].v_pointer;
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value->data[1].v_uint = G_VALUE_NOCOPY_CONTENTS;
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} else {
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value->data[0].v_pointer =
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copy_garray_of_gstvalue ((GArray *) collect_values[0].v_pointer);
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}
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return NULL;
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}
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static gchar *
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gst_value_lcopy_list_or_array (const GValue * value, guint n_collect_values,
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GTypeCValue * collect_values, guint collect_flags)
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{
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GArray **dest = collect_values[0].v_pointer;
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if (!dest)
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return g_strdup_printf ("value location for `%s' passed as NULL",
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G_VALUE_TYPE_NAME (value));
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if (!value->data[0].v_pointer)
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return g_strdup_printf ("invalid value given for `%s'",
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G_VALUE_TYPE_NAME (value));
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if (collect_flags & G_VALUE_NOCOPY_CONTENTS) {
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*dest = (GArray *) value->data[0].v_pointer;
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} else {
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*dest = copy_garray_of_gstvalue ((GArray *) value->data[0].v_pointer);
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}
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return NULL;
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}
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/**
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* gst_value_list_append_value:
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* @value: a #GValue of type #GST_TYPE_LIST
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* @append_value: the value to append
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*
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* Appends @append_value to the GstValueList in @value.
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*/
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void
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gst_value_list_append_value (GValue * value, const GValue * append_value)
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{
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GValue val = { 0, };
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g_return_if_fail (GST_VALUE_HOLDS_LIST (value));
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g_return_if_fail (G_IS_VALUE (append_value));
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gst_value_init_and_copy (&val, append_value);
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g_array_append_vals ((GArray *) value->data[0].v_pointer, &val, 1);
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}
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/**
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* gst_value_list_prepend_value:
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* @value: a #GValue of type #GST_TYPE_LIST
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* @prepend_value: the value to prepend
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*
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* Prepends @prepend_value to the GstValueList in @value.
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*/
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void
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gst_value_list_prepend_value (GValue * value, const GValue * prepend_value)
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{
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GValue val = { 0, };
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g_return_if_fail (GST_VALUE_HOLDS_LIST (value));
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g_return_if_fail (G_IS_VALUE (prepend_value));
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gst_value_init_and_copy (&val, prepend_value);
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g_array_prepend_vals ((GArray *) value->data[0].v_pointer, &val, 1);
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}
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/**
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* gst_value_list_concat:
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* @dest: (out caller-allocates): an uninitialized #GValue to take the result
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* @value1: a #GValue
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* @value2: a #GValue
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*
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* Concatenates copies of @value1 and @value2 into a list. Values that are not
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* of type #GST_TYPE_LIST are treated as if they were lists of length 1.
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* @dest will be initialized to the type #GST_TYPE_LIST.
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*/
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void
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gst_value_list_concat (GValue * dest, const GValue * value1,
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const GValue * value2)
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{
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guint i, value1_length, value2_length;
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GArray *array;
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g_return_if_fail (dest != NULL);
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g_return_if_fail (G_VALUE_TYPE (dest) == 0);
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g_return_if_fail (G_IS_VALUE (value1));
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g_return_if_fail (G_IS_VALUE (value2));
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value1_length =
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(GST_VALUE_HOLDS_LIST (value1) ? VALUE_LIST_SIZE (value1) : 1);
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value2_length =
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(GST_VALUE_HOLDS_LIST (value2) ? VALUE_LIST_SIZE (value2) : 1);
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g_value_init (dest, GST_TYPE_LIST);
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array = (GArray *) dest->data[0].v_pointer;
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g_array_set_size (array, value1_length + value2_length);
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if (GST_VALUE_HOLDS_LIST (value1)) {
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for (i = 0; i < value1_length; i++) {
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gst_value_init_and_copy (&g_array_index (array, GValue, i),
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VALUE_LIST_GET_VALUE (value1, i));
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}
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} else {
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gst_value_init_and_copy (&g_array_index (array, GValue, 0), value1);
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}
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if (GST_VALUE_HOLDS_LIST (value2)) {
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for (i = 0; i < value2_length; i++) {
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gst_value_init_and_copy (&g_array_index (array, GValue,
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i + value1_length), VALUE_LIST_GET_VALUE (value2, i));
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}
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} else {
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gst_value_init_and_copy (&g_array_index (array, GValue, value1_length),
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value2);
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}
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}
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/**
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* gst_value_list_merge:
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* @dest: (out caller-allocates): an uninitialized #GValue to take the result
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* @value1: a #GValue
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* @value2: a #GValue
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*
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* Merges copies of @value1 and @value2. Values that are not
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* of type #GST_TYPE_LIST are treated as if they were lists of length 1.
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*
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* The result will be put into @dest and will either be a list that will not
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* contain any duplicates, or a non-list type (if @value1 and @value2
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* were equal).
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*
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* Since: 0.10.32
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*/
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void
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gst_value_list_merge (GValue * dest, const GValue * value1,
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const GValue * value2)
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{
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guint i, j, k, value1_length, value2_length, skipped;
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const GValue *src;
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gboolean skip;
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GArray *array;
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g_return_if_fail (dest != NULL);
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g_return_if_fail (G_VALUE_TYPE (dest) == 0);
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g_return_if_fail (G_IS_VALUE (value1));
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g_return_if_fail (G_IS_VALUE (value2));
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value1_length =
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(GST_VALUE_HOLDS_LIST (value1) ? VALUE_LIST_SIZE (value1) : 1);
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value2_length =
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(GST_VALUE_HOLDS_LIST (value2) ? VALUE_LIST_SIZE (value2) : 1);
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g_value_init (dest, GST_TYPE_LIST);
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array = (GArray *) dest->data[0].v_pointer;
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g_array_set_size (array, value1_length + value2_length);
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if (GST_VALUE_HOLDS_LIST (value1)) {
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for (i = 0; i < value1_length; i++) {
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gst_value_init_and_copy (&g_array_index (array, GValue, i),
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VALUE_LIST_GET_VALUE (value1, i));
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}
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} else {
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gst_value_init_and_copy (&g_array_index (array, GValue, 0), value1);
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}
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j = value1_length;
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skipped = 0;
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if (GST_VALUE_HOLDS_LIST (value2)) {
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for (i = 0; i < value2_length; i++) {
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skip = FALSE;
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src = VALUE_LIST_GET_VALUE (value2, i);
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for (k = 0; k < value1_length; k++) {
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if (gst_value_compare (&g_array_index (array, GValue, k),
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src) == GST_VALUE_EQUAL) {
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skip = TRUE;
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skipped++;
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break;
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}
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}
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if (!skip) {
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gst_value_init_and_copy (&g_array_index (array, GValue, j), src);
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j++;
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}
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}
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} else {
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skip = FALSE;
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for (k = 0; k < value1_length; k++) {
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if (gst_value_compare (&g_array_index (array, GValue, k),
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value2) == GST_VALUE_EQUAL) {
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skip = TRUE;
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skipped++;
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break;
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}
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}
|
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if (!skip) {
|
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gst_value_init_and_copy (&g_array_index (array, GValue, j), value2);
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}
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}
|
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if (skipped) {
|
|
guint new_size = value1_length + (value2_length - skipped);
|
|
|
|
if (new_size > 1) {
|
|
/* shrink list */
|
|
g_array_set_size (array, new_size);
|
|
} else {
|
|
GValue single_dest;
|
|
|
|
/* size is 1, take single value in list and make it new dest */
|
|
single_dest = g_array_index (array, GValue, 0);
|
|
|
|
/* clean up old value allocations: must set array size to 0, because
|
|
* allocated values are not inited meaning g_value_unset() will not
|
|
* work on them */
|
|
g_array_set_size (array, 0);
|
|
g_value_unset (dest);
|
|
|
|
/* the single value is our new result */
|
|
*dest = single_dest;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gst_value_list_get_size:
|
|
* @value: a #GValue of type #GST_TYPE_LIST
|
|
*
|
|
* Gets the number of values contained in @value.
|
|
*
|
|
* Returns: the number of values
|
|
*/
|
|
guint
|
|
gst_value_list_get_size (const GValue * value)
|
|
{
|
|
g_return_val_if_fail (GST_VALUE_HOLDS_LIST (value), 0);
|
|
|
|
return ((GArray *) value->data[0].v_pointer)->len;
|
|
}
|
|
|
|
/**
|
|
* gst_value_list_get_value:
|
|
* @value: a #GValue of type #GST_TYPE_LIST
|
|
* @index: index of value to get from the list
|
|
*
|
|
* Gets the value that is a member of the list contained in @value and
|
|
* has the index @index.
|
|
*
|
|
* Returns: (transfer none): the value at the given index
|
|
*/
|
|
const GValue *
|
|
gst_value_list_get_value (const GValue * value, guint index)
|
|
{
|
|
g_return_val_if_fail (GST_VALUE_HOLDS_LIST (value), NULL);
|
|
g_return_val_if_fail (index < VALUE_LIST_SIZE (value), NULL);
|
|
|
|
return (const GValue *) &g_array_index ((GArray *) value->data[0].v_pointer,
|
|
GValue, index);
|
|
}
|
|
|
|
/**
|
|
* gst_value_array_append_value:
|
|
* @value: a #GValue of type #GST_TYPE_ARRAY
|
|
* @append_value: the value to append
|
|
*
|
|
* Appends @append_value to the GstValueArray in @value.
|
|
*/
|
|
void
|
|
gst_value_array_append_value (GValue * value, const GValue * append_value)
|
|
{
|
|
GValue val = { 0, };
|
|
|
|
g_return_if_fail (GST_VALUE_HOLDS_ARRAY (value));
|
|
g_return_if_fail (G_IS_VALUE (append_value));
|
|
|
|
gst_value_init_and_copy (&val, append_value);
|
|
g_array_append_vals ((GArray *) value->data[0].v_pointer, &val, 1);
|
|
}
|
|
|
|
/**
|
|
* gst_value_array_prepend_value:
|
|
* @value: a #GValue of type #GST_TYPE_ARRAY
|
|
* @prepend_value: the value to prepend
|
|
*
|
|
* Prepends @prepend_value to the GstValueArray in @value.
|
|
*/
|
|
void
|
|
gst_value_array_prepend_value (GValue * value, const GValue * prepend_value)
|
|
{
|
|
GValue val = { 0, };
|
|
|
|
g_return_if_fail (GST_VALUE_HOLDS_ARRAY (value));
|
|
g_return_if_fail (G_IS_VALUE (prepend_value));
|
|
|
|
gst_value_init_and_copy (&val, prepend_value);
|
|
g_array_prepend_vals ((GArray *) value->data[0].v_pointer, &val, 1);
|
|
}
|
|
|
|
/**
|
|
* gst_value_array_get_size:
|
|
* @value: a #GValue of type #GST_TYPE_ARRAY
|
|
*
|
|
* Gets the number of values contained in @value.
|
|
*
|
|
* Returns: the number of values
|
|
*/
|
|
guint
|
|
gst_value_array_get_size (const GValue * value)
|
|
{
|
|
g_return_val_if_fail (GST_VALUE_HOLDS_ARRAY (value), 0);
|
|
|
|
return ((GArray *) value->data[0].v_pointer)->len;
|
|
}
|
|
|
|
/**
|
|
* gst_value_array_get_value:
|
|
* @value: a #GValue of type #GST_TYPE_ARRAY
|
|
* @index: index of value to get from the array
|
|
*
|
|
* Gets the value that is a member of the array contained in @value and
|
|
* has the index @index.
|
|
*
|
|
* Returns: (transfer none): the value at the given index
|
|
*/
|
|
const GValue *
|
|
gst_value_array_get_value (const GValue * value, guint index)
|
|
{
|
|
g_return_val_if_fail (GST_VALUE_HOLDS_ARRAY (value), NULL);
|
|
g_return_val_if_fail (index < gst_value_array_get_size (value), NULL);
|
|
|
|
return (const GValue *) &g_array_index ((GArray *) value->data[0].v_pointer,
|
|
GValue, index);
|
|
}
|
|
|
|
static void
|
|
gst_value_transform_list_string (const GValue * src_value, GValue * dest_value)
|
|
{
|
|
gst_value_transform_any_list_string (src_value, dest_value, "{ ", " }");
|
|
}
|
|
|
|
static void
|
|
gst_value_transform_array_string (const GValue * src_value, GValue * dest_value)
|
|
{
|
|
gst_value_transform_any_list_string (src_value, dest_value, "< ", " >");
|
|
}
|
|
|
|
/* Do an unordered compare of the contents of a list */
|
|
static gint
|
|
gst_value_compare_list (const GValue * value1, const GValue * value2)
|
|
{
|
|
guint i, j;
|
|
GArray *array1 = value1->data[0].v_pointer;
|
|
GArray *array2 = value2->data[0].v_pointer;
|
|
GValue *v1;
|
|
GValue *v2;
|
|
gint len, to_remove;
|
|
guint8 *removed;
|
|
GstValueCompareFunc compare;
|
|
|
|
/* get length and do initial length check. */
|
|
len = array1->len;
|
|
if (len != array2->len)
|
|
return GST_VALUE_UNORDERED;
|
|
|
|
/* place to mark removed value indices of array2 */
|
|
removed = g_newa (guint8, len);
|
|
memset (removed, 0, len);
|
|
to_remove = len;
|
|
|
|
/* loop over array1, all items should be in array2. When we find an
|
|
* item in array2, remove it from array2 by marking it as removed */
|
|
for (i = 0; i < len; i++) {
|
|
v1 = &g_array_index (array1, GValue, i);
|
|
if ((compare = gst_value_get_compare_func (v1))) {
|
|
for (j = 0; j < len; j++) {
|
|
/* item is removed, we can skip it */
|
|
if (removed[j])
|
|
continue;
|
|
v2 = &g_array_index (array2, GValue, j);
|
|
if (gst_value_compare_with_func (v1, v2, compare) == GST_VALUE_EQUAL) {
|
|
/* mark item as removed now that we found it in array2 and
|
|
* decrement the number of remaining items in array2. */
|
|
removed[j] = 1;
|
|
to_remove--;
|
|
break;
|
|
}
|
|
}
|
|
/* item in array1 and not in array2, UNORDERED */
|
|
if (j == len)
|
|
return GST_VALUE_UNORDERED;
|
|
} else
|
|
return GST_VALUE_UNORDERED;
|
|
}
|
|
/* if not all items were removed, array2 contained something not in array1 */
|
|
if (to_remove != 0)
|
|
return GST_VALUE_UNORDERED;
|
|
|
|
/* arrays are equal */
|
|
return GST_VALUE_EQUAL;
|
|
}
|
|
|
|
/* Perform an ordered comparison of the contents of an array */
|
|
static gint
|
|
gst_value_compare_array (const GValue * value1, const GValue * value2)
|
|
{
|
|
guint i;
|
|
GArray *array1 = value1->data[0].v_pointer;
|
|
GArray *array2 = value2->data[0].v_pointer;
|
|
guint len = array1->len;
|
|
GValue *v1;
|
|
GValue *v2;
|
|
|
|
if (len != array2->len)
|
|
return GST_VALUE_UNORDERED;
|
|
|
|
for (i = 0; i < len; i++) {
|
|
v1 = &g_array_index (array1, GValue, i);
|
|
v2 = &g_array_index (array2, GValue, i);
|
|
if (gst_value_compare (v1, v2) != GST_VALUE_EQUAL)
|
|
return GST_VALUE_UNORDERED;
|
|
}
|
|
|
|
return GST_VALUE_EQUAL;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_serialize_list (const GValue * value)
|
|
{
|
|
return gst_value_serialize_any_list (value, "{ ", " }");
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_deserialize_list (GValue * dest, const gchar * s)
|
|
{
|
|
g_warning ("gst_value_deserialize_list: unimplemented");
|
|
return FALSE;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_serialize_array (const GValue * value)
|
|
{
|
|
return gst_value_serialize_any_list (value, "< ", " >");
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_deserialize_array (GValue * dest, const gchar * s)
|
|
{
|
|
g_warning ("gst_value_deserialize_array: unimplemented");
|
|
return FALSE;
|
|
}
|
|
|
|
/**********
|
|
* fourcc *
|
|
**********/
|
|
|
|
static void
|
|
gst_value_init_fourcc (GValue * value)
|
|
{
|
|
value->data[0].v_int = 0;
|
|
}
|
|
|
|
static void
|
|
gst_value_copy_fourcc (const GValue * src_value, GValue * dest_value)
|
|
{
|
|
dest_value->data[0].v_int = src_value->data[0].v_int;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_collect_fourcc (GValue * value, guint n_collect_values,
|
|
GTypeCValue * collect_values, guint collect_flags)
|
|
{
|
|
value->data[0].v_int = collect_values[0].v_int;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_lcopy_fourcc (const GValue * value, guint n_collect_values,
|
|
GTypeCValue * collect_values, guint collect_flags)
|
|
{
|
|
guint32 *fourcc_p = collect_values[0].v_pointer;
|
|
|
|
if (!fourcc_p)
|
|
return g_strdup_printf ("value location for `%s' passed as NULL",
|
|
G_VALUE_TYPE_NAME (value));
|
|
|
|
*fourcc_p = value->data[0].v_int;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* gst_value_set_fourcc:
|
|
* @value: a GValue initialized to #GST_TYPE_FOURCC
|
|
* @fourcc: the #guint32 fourcc to set
|
|
*
|
|
* Sets @value to @fourcc.
|
|
*/
|
|
void
|
|
gst_value_set_fourcc (GValue * value, guint32 fourcc)
|
|
{
|
|
g_return_if_fail (GST_VALUE_HOLDS_FOURCC (value));
|
|
|
|
value->data[0].v_int = fourcc;
|
|
}
|
|
|
|
/**
|
|
* gst_value_get_fourcc:
|
|
* @value: a GValue initialized to #GST_TYPE_FOURCC
|
|
*
|
|
* Gets the #guint32 fourcc contained in @value.
|
|
*
|
|
* Returns: the #guint32 fourcc contained in @value.
|
|
*/
|
|
guint32
|
|
gst_value_get_fourcc (const GValue * value)
|
|
{
|
|
g_return_val_if_fail (GST_VALUE_HOLDS_FOURCC (value), 0);
|
|
|
|
return value->data[0].v_int;
|
|
}
|
|
|
|
static void
|
|
gst_value_transform_fourcc_string (const GValue * src_value,
|
|
GValue * dest_value)
|
|
{
|
|
guint32 fourcc = src_value->data[0].v_int;
|
|
gchar fourcc_char[4];
|
|
|
|
fourcc_char[0] = (fourcc >> 0) & 0xff;
|
|
fourcc_char[1] = (fourcc >> 8) & 0xff;
|
|
fourcc_char[2] = (fourcc >> 16) & 0xff;
|
|
fourcc_char[3] = (fourcc >> 24) & 0xff;
|
|
|
|
if ((g_ascii_isalnum (fourcc_char[0]) || fourcc_char[0] == ' ') &&
|
|
(g_ascii_isalnum (fourcc_char[1]) || fourcc_char[1] == ' ') &&
|
|
(g_ascii_isalnum (fourcc_char[2]) || fourcc_char[2] == ' ') &&
|
|
(g_ascii_isalnum (fourcc_char[3]) || fourcc_char[3] == ' ')) {
|
|
dest_value->data[0].v_pointer =
|
|
g_strdup_printf ("%" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (fourcc));
|
|
} else {
|
|
dest_value->data[0].v_pointer = g_strdup_printf ("0x%08x", fourcc);
|
|
}
|
|
}
|
|
|
|
static gint
|
|
gst_value_compare_fourcc (const GValue * value1, const GValue * value2)
|
|
{
|
|
if (value2->data[0].v_int == value1->data[0].v_int)
|
|
return GST_VALUE_EQUAL;
|
|
return GST_VALUE_UNORDERED;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_serialize_fourcc (const GValue * value)
|
|
{
|
|
guint32 fourcc = value->data[0].v_int;
|
|
gchar fourcc_char[4];
|
|
|
|
fourcc_char[0] = (fourcc >> 0) & 0xff;
|
|
fourcc_char[1] = (fourcc >> 8) & 0xff;
|
|
fourcc_char[2] = (fourcc >> 16) & 0xff;
|
|
fourcc_char[3] = (fourcc >> 24) & 0xff;
|
|
|
|
if ((g_ascii_isalnum (fourcc_char[0]) || fourcc_char[0] == ' ') &&
|
|
(g_ascii_isalnum (fourcc_char[1]) || fourcc_char[1] == ' ') &&
|
|
(g_ascii_isalnum (fourcc_char[2]) || fourcc_char[2] == ' ') &&
|
|
(g_ascii_isalnum (fourcc_char[3]) || fourcc_char[3] == ' ')) {
|
|
return g_strdup_printf ("%" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (fourcc));
|
|
} else {
|
|
return g_strdup_printf ("0x%08x", fourcc);
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_deserialize_fourcc (GValue * dest, const gchar * s)
|
|
{
|
|
gboolean ret = FALSE;
|
|
guint32 fourcc = 0;
|
|
gchar *end;
|
|
gint l = strlen (s);
|
|
|
|
if (l == 4) {
|
|
fourcc = GST_MAKE_FOURCC (s[0], s[1], s[2], s[3]);
|
|
ret = TRUE;
|
|
} else if (l == 3) {
|
|
fourcc = GST_MAKE_FOURCC (s[0], s[1], s[2], ' ');
|
|
ret = TRUE;
|
|
} else if (l == 2) {
|
|
fourcc = GST_MAKE_FOURCC (s[0], s[1], ' ', ' ');
|
|
ret = TRUE;
|
|
} else if (l == 1) {
|
|
fourcc = GST_MAKE_FOURCC (s[0], ' ', ' ', ' ');
|
|
ret = TRUE;
|
|
} else if (g_ascii_isdigit (*s)) {
|
|
fourcc = strtoul (s, &end, 0);
|
|
if (*end == 0) {
|
|
ret = TRUE;
|
|
}
|
|
}
|
|
gst_value_set_fourcc (dest, fourcc);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*************
|
|
* int range *
|
|
*************/
|
|
|
|
static void
|
|
gst_value_init_int_range (GValue * value)
|
|
{
|
|
value->data[0].v_int = 0;
|
|
value->data[1].v_int = 0;
|
|
}
|
|
|
|
static void
|
|
gst_value_copy_int_range (const GValue * src_value, GValue * dest_value)
|
|
{
|
|
dest_value->data[0].v_int = src_value->data[0].v_int;
|
|
dest_value->data[1].v_int = src_value->data[1].v_int;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_collect_int_range (GValue * value, guint n_collect_values,
|
|
GTypeCValue * collect_values, guint collect_flags)
|
|
{
|
|
if (n_collect_values != 2)
|
|
return g_strdup_printf ("not enough value locations for `%s' passed",
|
|
G_VALUE_TYPE_NAME (value));
|
|
if (collect_values[0].v_int >= collect_values[1].v_int)
|
|
return g_strdup_printf ("range start is not smaller than end for `%s'",
|
|
G_VALUE_TYPE_NAME (value));
|
|
|
|
value->data[0].v_int = collect_values[0].v_int;
|
|
value->data[1].v_int = collect_values[1].v_int;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_lcopy_int_range (const GValue * value, guint n_collect_values,
|
|
GTypeCValue * collect_values, guint collect_flags)
|
|
{
|
|
guint32 *int_range_start = collect_values[0].v_pointer;
|
|
guint32 *int_range_end = collect_values[1].v_pointer;
|
|
|
|
if (!int_range_start)
|
|
return g_strdup_printf ("start value location for `%s' passed as NULL",
|
|
G_VALUE_TYPE_NAME (value));
|
|
if (!int_range_end)
|
|
return g_strdup_printf ("end value location for `%s' passed as NULL",
|
|
G_VALUE_TYPE_NAME (value));
|
|
|
|
*int_range_start = value->data[0].v_int;
|
|
*int_range_end = value->data[1].v_int;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* gst_value_set_int_range:
|
|
* @value: a GValue initialized to GST_TYPE_INT_RANGE
|
|
* @start: the start of the range
|
|
* @end: the end of the range
|
|
*
|
|
* Sets @value to the range specified by @start and @end.
|
|
*/
|
|
void
|
|
gst_value_set_int_range (GValue * value, gint start, gint end)
|
|
{
|
|
g_return_if_fail (GST_VALUE_HOLDS_INT_RANGE (value));
|
|
g_return_if_fail (start < end);
|
|
|
|
value->data[0].v_int = start;
|
|
value->data[1].v_int = end;
|
|
}
|
|
|
|
/**
|
|
* gst_value_get_int_range_min:
|
|
* @value: a GValue initialized to GST_TYPE_INT_RANGE
|
|
*
|
|
* Gets the minimum of the range specified by @value.
|
|
*
|
|
* Returns: the minimum of the range
|
|
*/
|
|
gint
|
|
gst_value_get_int_range_min (const GValue * value)
|
|
{
|
|
g_return_val_if_fail (GST_VALUE_HOLDS_INT_RANGE (value), 0);
|
|
|
|
return value->data[0].v_int;
|
|
}
|
|
|
|
/**
|
|
* gst_value_get_int_range_max:
|
|
* @value: a GValue initialized to GST_TYPE_INT_RANGE
|
|
*
|
|
* Gets the maximum of the range specified by @value.
|
|
*
|
|
* Returns: the maxumum of the range
|
|
*/
|
|
gint
|
|
gst_value_get_int_range_max (const GValue * value)
|
|
{
|
|
g_return_val_if_fail (GST_VALUE_HOLDS_INT_RANGE (value), 0);
|
|
|
|
return value->data[1].v_int;
|
|
}
|
|
|
|
static void
|
|
gst_value_transform_int_range_string (const GValue * src_value,
|
|
GValue * dest_value)
|
|
{
|
|
dest_value->data[0].v_pointer = g_strdup_printf ("[%d,%d]",
|
|
(int) src_value->data[0].v_int, (int) src_value->data[1].v_int);
|
|
}
|
|
|
|
static gint
|
|
gst_value_compare_int_range (const GValue * value1, const GValue * value2)
|
|
{
|
|
if (value2->data[0].v_int == value1->data[0].v_int &&
|
|
value2->data[1].v_int == value1->data[1].v_int)
|
|
return GST_VALUE_EQUAL;
|
|
return GST_VALUE_UNORDERED;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_serialize_int_range (const GValue * value)
|
|
{
|
|
return g_strdup_printf ("[ %d, %d ]", value->data[0].v_int,
|
|
value->data[1].v_int);
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_deserialize_int_range (GValue * dest, const gchar * s)
|
|
{
|
|
g_warning ("unimplemented");
|
|
return FALSE;
|
|
}
|
|
|
|
/***************
|
|
* int64 range *
|
|
***************/
|
|
|
|
static void
|
|
gst_value_init_int64_range (GValue * value)
|
|
{
|
|
value->data[0].v_int64 = 0;
|
|
value->data[1].v_int64 = 0;
|
|
}
|
|
|
|
static void
|
|
gst_value_copy_int64_range (const GValue * src_value, GValue * dest_value)
|
|
{
|
|
dest_value->data[0].v_int64 = src_value->data[0].v_int64;
|
|
dest_value->data[1].v_int64 = src_value->data[1].v_int64;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_collect_int64_range (GValue * value, guint n_collect_values,
|
|
GTypeCValue * collect_values, guint collect_flags)
|
|
{
|
|
if (n_collect_values != 2)
|
|
return g_strdup_printf ("not enough value locations for `%s' passed",
|
|
G_VALUE_TYPE_NAME (value));
|
|
if (collect_values[0].v_int64 >= collect_values[1].v_int64)
|
|
return g_strdup_printf ("range start is not smaller than end for `%s'",
|
|
G_VALUE_TYPE_NAME (value));
|
|
|
|
value->data[0].v_int64 = collect_values[0].v_int64;
|
|
value->data[1].v_int64 = collect_values[1].v_int64;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_lcopy_int64_range (const GValue * value, guint n_collect_values,
|
|
GTypeCValue * collect_values, guint collect_flags)
|
|
{
|
|
guint64 *int_range_start = collect_values[0].v_pointer;
|
|
guint64 *int_range_end = collect_values[1].v_pointer;
|
|
|
|
if (!int_range_start)
|
|
return g_strdup_printf ("start value location for `%s' passed as NULL",
|
|
G_VALUE_TYPE_NAME (value));
|
|
if (!int_range_end)
|
|
return g_strdup_printf ("end value location for `%s' passed as NULL",
|
|
G_VALUE_TYPE_NAME (value));
|
|
|
|
*int_range_start = value->data[0].v_int64;
|
|
*int_range_end = value->data[1].v_int64;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* gst_value_set_int64_range:
|
|
* @value: a GValue initialized to GST_TYPE_INT64_RANGE
|
|
* @start: the start of the range
|
|
* @end: the end of the range
|
|
*
|
|
* Sets @value to the range specified by @start and @end.
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
void
|
|
gst_value_set_int64_range (GValue * value, gint64 start, gint64 end)
|
|
{
|
|
g_return_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value));
|
|
g_return_if_fail (start < end);
|
|
|
|
value->data[0].v_int64 = start;
|
|
value->data[1].v_int64 = end;
|
|
}
|
|
|
|
/**
|
|
* gst_value_get_int64_range_min:
|
|
* @value: a GValue initialized to GST_TYPE_INT64_RANGE
|
|
*
|
|
* Gets the minimum of the range specified by @value.
|
|
*
|
|
* Returns: the minimum of the range
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
gint64
|
|
gst_value_get_int64_range_min (const GValue * value)
|
|
{
|
|
g_return_val_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value), 0);
|
|
|
|
return value->data[0].v_int64;
|
|
}
|
|
|
|
/**
|
|
* gst_value_get_int64_range_max:
|
|
* @value: a GValue initialized to GST_TYPE_INT64_RANGE
|
|
*
|
|
* Gets the maximum of the range specified by @value.
|
|
*
|
|
* Returns: the maxumum of the range
|
|
*
|
|
* Since: 0.10.31
|
|
*/
|
|
gint64
|
|
gst_value_get_int64_range_max (const GValue * value)
|
|
{
|
|
g_return_val_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value), 0);
|
|
|
|
return value->data[1].v_int64;
|
|
}
|
|
|
|
static void
|
|
gst_value_transform_int64_range_string (const GValue * src_value,
|
|
GValue * dest_value)
|
|
{
|
|
dest_value->data[0].v_pointer =
|
|
g_strdup_printf ("(gint64)[%" G_GINT64_FORMAT ",%" G_GINT64_FORMAT "]",
|
|
src_value->data[0].v_int64, src_value->data[1].v_int64);
|
|
}
|
|
|
|
static gint
|
|
gst_value_compare_int64_range (const GValue * value1, const GValue * value2)
|
|
{
|
|
if (value2->data[0].v_int64 == value1->data[0].v_int64 &&
|
|
value2->data[1].v_int64 == value1->data[1].v_int64)
|
|
return GST_VALUE_EQUAL;
|
|
return GST_VALUE_UNORDERED;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_serialize_int64_range (const GValue * value)
|
|
{
|
|
return g_strdup_printf ("[ %" G_GINT64_FORMAT ", %" G_GINT64_FORMAT " ]",
|
|
value->data[0].v_int64, value->data[1].v_int64);
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_deserialize_int64_range (GValue * dest, const gchar * s)
|
|
{
|
|
g_warning ("unimplemented");
|
|
return FALSE;
|
|
}
|
|
|
|
/****************
|
|
* double range *
|
|
****************/
|
|
|
|
static void
|
|
gst_value_init_double_range (GValue * value)
|
|
{
|
|
value->data[0].v_double = 0;
|
|
value->data[1].v_double = 0;
|
|
}
|
|
|
|
static void
|
|
gst_value_copy_double_range (const GValue * src_value, GValue * dest_value)
|
|
{
|
|
dest_value->data[0].v_double = src_value->data[0].v_double;
|
|
dest_value->data[1].v_double = src_value->data[1].v_double;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_collect_double_range (GValue * value, guint n_collect_values,
|
|
GTypeCValue * collect_values, guint collect_flags)
|
|
{
|
|
if (n_collect_values != 2)
|
|
return g_strdup_printf ("not enough value locations for `%s' passed",
|
|
G_VALUE_TYPE_NAME (value));
|
|
if (collect_values[0].v_double >= collect_values[1].v_double)
|
|
return g_strdup_printf ("range start is not smaller than end for `%s'",
|
|
G_VALUE_TYPE_NAME (value));
|
|
|
|
value->data[0].v_double = collect_values[0].v_double;
|
|
value->data[1].v_double = collect_values[1].v_double;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_lcopy_double_range (const GValue * value, guint n_collect_values,
|
|
GTypeCValue * collect_values, guint collect_flags)
|
|
{
|
|
gdouble *double_range_start = collect_values[0].v_pointer;
|
|
gdouble *double_range_end = collect_values[1].v_pointer;
|
|
|
|
if (!double_range_start)
|
|
return g_strdup_printf ("start value location for `%s' passed as NULL",
|
|
G_VALUE_TYPE_NAME (value));
|
|
if (!double_range_end)
|
|
return g_strdup_printf ("end value location for `%s' passed as NULL",
|
|
G_VALUE_TYPE_NAME (value));
|
|
|
|
*double_range_start = value->data[0].v_double;
|
|
*double_range_end = value->data[1].v_double;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* gst_value_set_double_range:
|
|
* @value: a GValue initialized to GST_TYPE_DOUBLE_RANGE
|
|
* @start: the start of the range
|
|
* @end: the end of the range
|
|
*
|
|
* Sets @value to the range specified by @start and @end.
|
|
*/
|
|
void
|
|
gst_value_set_double_range (GValue * value, gdouble start, gdouble end)
|
|
{
|
|
g_return_if_fail (GST_VALUE_HOLDS_DOUBLE_RANGE (value));
|
|
g_return_if_fail (start < end);
|
|
|
|
value->data[0].v_double = start;
|
|
value->data[1].v_double = end;
|
|
}
|
|
|
|
/**
|
|
* gst_value_get_double_range_min:
|
|
* @value: a GValue initialized to GST_TYPE_DOUBLE_RANGE
|
|
*
|
|
* Gets the minimum of the range specified by @value.
|
|
*
|
|
* Returns: the minimum of the range
|
|
*/
|
|
gdouble
|
|
gst_value_get_double_range_min (const GValue * value)
|
|
{
|
|
g_return_val_if_fail (GST_VALUE_HOLDS_DOUBLE_RANGE (value), 0);
|
|
|
|
return value->data[0].v_double;
|
|
}
|
|
|
|
/**
|
|
* gst_value_get_double_range_max:
|
|
* @value: a GValue initialized to GST_TYPE_DOUBLE_RANGE
|
|
*
|
|
* Gets the maximum of the range specified by @value.
|
|
*
|
|
* Returns: the maxumum of the range
|
|
*/
|
|
gdouble
|
|
gst_value_get_double_range_max (const GValue * value)
|
|
{
|
|
g_return_val_if_fail (GST_VALUE_HOLDS_DOUBLE_RANGE (value), 0);
|
|
|
|
return value->data[1].v_double;
|
|
}
|
|
|
|
static void
|
|
gst_value_transform_double_range_string (const GValue * src_value,
|
|
GValue * dest_value)
|
|
{
|
|
gchar s1[G_ASCII_DTOSTR_BUF_SIZE], s2[G_ASCII_DTOSTR_BUF_SIZE];
|
|
|
|
dest_value->data[0].v_pointer = g_strdup_printf ("[%s,%s]",
|
|
g_ascii_dtostr (s1, G_ASCII_DTOSTR_BUF_SIZE,
|
|
src_value->data[0].v_double),
|
|
g_ascii_dtostr (s2, G_ASCII_DTOSTR_BUF_SIZE,
|
|
src_value->data[1].v_double));
|
|
}
|
|
|
|
static gint
|
|
gst_value_compare_double_range (const GValue * value1, const GValue * value2)
|
|
{
|
|
if (value2->data[0].v_double == value1->data[0].v_double &&
|
|
value2->data[0].v_double == value1->data[0].v_double)
|
|
return GST_VALUE_EQUAL;
|
|
return GST_VALUE_UNORDERED;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_serialize_double_range (const GValue * value)
|
|
{
|
|
gchar d1[G_ASCII_DTOSTR_BUF_SIZE];
|
|
gchar d2[G_ASCII_DTOSTR_BUF_SIZE];
|
|
|
|
g_ascii_dtostr (d1, G_ASCII_DTOSTR_BUF_SIZE, value->data[0].v_double);
|
|
g_ascii_dtostr (d2, G_ASCII_DTOSTR_BUF_SIZE, value->data[1].v_double);
|
|
return g_strdup_printf ("[ %s, %s ]", d1, d2);
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_deserialize_double_range (GValue * dest, const gchar * s)
|
|
{
|
|
g_warning ("unimplemented");
|
|
return FALSE;
|
|
}
|
|
|
|
/****************
|
|
* fraction range *
|
|
****************/
|
|
|
|
static void
|
|
gst_value_init_fraction_range (GValue * value)
|
|
{
|
|
GValue *vals;
|
|
GType ftype;
|
|
|
|
ftype = GST_TYPE_FRACTION;
|
|
|
|
value->data[0].v_pointer = vals = g_slice_alloc0 (2 * sizeof (GValue));
|
|
g_value_init (&vals[0], ftype);
|
|
g_value_init (&vals[1], ftype);
|
|
}
|
|
|
|
static void
|
|
gst_value_free_fraction_range (GValue * value)
|
|
{
|
|
GValue *vals = (GValue *) value->data[0].v_pointer;
|
|
|
|
if (vals != NULL) {
|
|
/* we know the two values contain fractions without internal allocs */
|
|
/* g_value_unset (&vals[0]); */
|
|
/* g_value_unset (&vals[1]); */
|
|
g_slice_free1 (2 * sizeof (GValue), vals);
|
|
value->data[0].v_pointer = NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_value_copy_fraction_range (const GValue * src_value, GValue * dest_value)
|
|
{
|
|
GValue *vals = (GValue *) dest_value->data[0].v_pointer;
|
|
GValue *src_vals = (GValue *) src_value->data[0].v_pointer;
|
|
|
|
if (vals == NULL) {
|
|
gst_value_init_fraction_range (dest_value);
|
|
vals = dest_value->data[0].v_pointer;
|
|
}
|
|
if (src_vals != NULL) {
|
|
g_value_copy (&src_vals[0], &vals[0]);
|
|
g_value_copy (&src_vals[1], &vals[1]);
|
|
}
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_collect_fraction_range (GValue * value, guint n_collect_values,
|
|
GTypeCValue * collect_values, guint collect_flags)
|
|
{
|
|
GValue *vals = (GValue *) value->data[0].v_pointer;
|
|
|
|
if (n_collect_values != 4)
|
|
return g_strdup_printf ("not enough value locations for `%s' passed",
|
|
G_VALUE_TYPE_NAME (value));
|
|
if (collect_values[1].v_int == 0)
|
|
return g_strdup_printf ("passed '0' as first denominator for `%s'",
|
|
G_VALUE_TYPE_NAME (value));
|
|
if (collect_values[3].v_int == 0)
|
|
return g_strdup_printf ("passed '0' as second denominator for `%s'",
|
|
G_VALUE_TYPE_NAME (value));
|
|
if (gst_util_fraction_compare (collect_values[0].v_int,
|
|
collect_values[1].v_int, collect_values[2].v_int,
|
|
collect_values[3].v_int) >= 0)
|
|
return g_strdup_printf ("range start is not smaller than end for `%s'",
|
|
G_VALUE_TYPE_NAME (value));
|
|
|
|
if (vals == NULL) {
|
|
gst_value_init_fraction_range (value);
|
|
vals = value->data[0].v_pointer;
|
|
}
|
|
|
|
gst_value_set_fraction (&vals[0], collect_values[0].v_int,
|
|
collect_values[1].v_int);
|
|
gst_value_set_fraction (&vals[1], collect_values[2].v_int,
|
|
collect_values[3].v_int);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_lcopy_fraction_range (const GValue * value, guint n_collect_values,
|
|
GTypeCValue * collect_values, guint collect_flags)
|
|
{
|
|
gint i;
|
|
gint *dest_values[4];
|
|
GValue *vals = (GValue *) value->data[0].v_pointer;
|
|
|
|
if (G_UNLIKELY (n_collect_values != 4))
|
|
return g_strdup_printf ("not enough value locations for `%s' passed",
|
|
G_VALUE_TYPE_NAME (value));
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
if (G_UNLIKELY (collect_values[i].v_pointer == NULL)) {
|
|
return g_strdup_printf ("value location for `%s' passed as NULL",
|
|
G_VALUE_TYPE_NAME (value));
|
|
}
|
|
dest_values[i] = collect_values[i].v_pointer;
|
|
}
|
|
|
|
if (G_UNLIKELY (vals == NULL)) {
|
|
return g_strdup_printf ("Uninitialised `%s' passed",
|
|
G_VALUE_TYPE_NAME (value));
|
|
}
|
|
|
|
dest_values[0][0] = gst_value_get_fraction_numerator (&vals[0]);
|
|
dest_values[1][0] = gst_value_get_fraction_denominator (&vals[0]);
|
|
dest_values[2][0] = gst_value_get_fraction_numerator (&vals[1]);
|
|
dest_values[3][0] = gst_value_get_fraction_denominator (&vals[1]);
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* gst_value_set_fraction_range:
|
|
* @value: a GValue initialized to GST_TYPE_FRACTION_RANGE
|
|
* @start: the start of the range (a GST_TYPE_FRACTION GValue)
|
|
* @end: the end of the range (a GST_TYPE_FRACTION GValue)
|
|
*
|
|
* Sets @value to the range specified by @start and @end.
|
|
*/
|
|
void
|
|
gst_value_set_fraction_range (GValue * value, const GValue * start,
|
|
const GValue * end)
|
|
{
|
|
GValue *vals;
|
|
|
|
g_return_if_fail (GST_VALUE_HOLDS_FRACTION_RANGE (value));
|
|
g_return_if_fail (GST_VALUE_HOLDS_FRACTION (start));
|
|
g_return_if_fail (GST_VALUE_HOLDS_FRACTION (end));
|
|
g_return_if_fail (gst_util_fraction_compare (start->data[0].v_int,
|
|
start->data[1].v_int, end->data[0].v_int, end->data[1].v_int) < 0);
|
|
|
|
vals = (GValue *) value->data[0].v_pointer;
|
|
if (vals == NULL) {
|
|
gst_value_init_fraction_range (value);
|
|
vals = value->data[0].v_pointer;
|
|
}
|
|
g_value_copy (start, &vals[0]);
|
|
g_value_copy (end, &vals[1]);
|
|
}
|
|
|
|
/**
|
|
* gst_value_set_fraction_range_full:
|
|
* @value: a GValue initialized to GST_TYPE_FRACTION_RANGE
|
|
* @numerator_start: the numerator start of the range
|
|
* @denominator_start: the denominator start of the range
|
|
* @numerator_end: the numerator end of the range
|
|
* @denominator_end: the denominator end of the range
|
|
*
|
|
* Sets @value to the range specified by @numerator_start/@denominator_start
|
|
* and @numerator_end/@denominator_end.
|
|
*/
|
|
void
|
|
gst_value_set_fraction_range_full (GValue * value,
|
|
gint numerator_start, gint denominator_start,
|
|
gint numerator_end, gint denominator_end)
|
|
{
|
|
GValue start = { 0 };
|
|
GValue end = { 0 };
|
|
|
|
g_return_if_fail (value != NULL);
|
|
g_return_if_fail (denominator_start != 0);
|
|
g_return_if_fail (denominator_end != 0);
|
|
g_return_if_fail (gst_util_fraction_compare (numerator_start,
|
|
denominator_start, numerator_end, denominator_end) < 0);
|
|
|
|
g_value_init (&start, GST_TYPE_FRACTION);
|
|
g_value_init (&end, GST_TYPE_FRACTION);
|
|
|
|
gst_value_set_fraction (&start, numerator_start, denominator_start);
|
|
gst_value_set_fraction (&end, numerator_end, denominator_end);
|
|
gst_value_set_fraction_range (value, &start, &end);
|
|
|
|
/* we know the two values contain fractions without internal allocs */
|
|
/* g_value_unset (&start); */
|
|
/* g_value_unset (&end); */
|
|
}
|
|
|
|
/**
|
|
* gst_value_get_fraction_range_min:
|
|
* @value: a GValue initialized to GST_TYPE_FRACTION_RANGE
|
|
*
|
|
* Gets the minimum of the range specified by @value.
|
|
*
|
|
* Returns: the minimum of the range
|
|
*/
|
|
const GValue *
|
|
gst_value_get_fraction_range_min (const GValue * value)
|
|
{
|
|
GValue *vals;
|
|
|
|
g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION_RANGE (value), NULL);
|
|
|
|
vals = (GValue *) value->data[0].v_pointer;
|
|
if (vals != NULL) {
|
|
return &vals[0];
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* gst_value_get_fraction_range_max:
|
|
* @value: a GValue initialized to GST_TYPE_FRACTION_RANGE
|
|
*
|
|
* Gets the maximum of the range specified by @value.
|
|
*
|
|
* Returns: the maximum of the range
|
|
*/
|
|
const GValue *
|
|
gst_value_get_fraction_range_max (const GValue * value)
|
|
{
|
|
GValue *vals;
|
|
|
|
g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION_RANGE (value), NULL);
|
|
|
|
vals = (GValue *) value->data[0].v_pointer;
|
|
if (vals != NULL) {
|
|
return &vals[1];
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_serialize_fraction_range (const GValue * value)
|
|
{
|
|
GValue *vals = (GValue *) value->data[0].v_pointer;
|
|
gchar *retval;
|
|
|
|
if (vals == NULL) {
|
|
retval = g_strdup ("[ 0/1, 0/1 ]");
|
|
} else {
|
|
gchar *start, *end;
|
|
|
|
start = gst_value_serialize_fraction (&vals[0]);
|
|
end = gst_value_serialize_fraction (&vals[1]);
|
|
|
|
retval = g_strdup_printf ("[ %s, %s ]", start, end);
|
|
g_free (start);
|
|
g_free (end);
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
static void
|
|
gst_value_transform_fraction_range_string (const GValue * src_value,
|
|
GValue * dest_value)
|
|
{
|
|
dest_value->data[0].v_pointer =
|
|
gst_value_serialize_fraction_range (src_value);
|
|
}
|
|
|
|
static gint
|
|
gst_value_compare_fraction_range (const GValue * value1, const GValue * value2)
|
|
{
|
|
GValue *vals1, *vals2;
|
|
GstValueCompareFunc compare;
|
|
|
|
if (value2->data[0].v_pointer == value1->data[0].v_pointer)
|
|
return GST_VALUE_EQUAL; /* Only possible if both are NULL */
|
|
|
|
if (value2->data[0].v_pointer == NULL || value1->data[0].v_pointer == NULL)
|
|
return GST_VALUE_UNORDERED;
|
|
|
|
vals1 = (GValue *) value1->data[0].v_pointer;
|
|
vals2 = (GValue *) value2->data[0].v_pointer;
|
|
if ((compare = gst_value_get_compare_func (&vals1[0]))) {
|
|
if (gst_value_compare_with_func (&vals1[0], &vals2[0], compare) ==
|
|
GST_VALUE_EQUAL &&
|
|
gst_value_compare_with_func (&vals1[1], &vals2[1], compare) ==
|
|
GST_VALUE_EQUAL)
|
|
return GST_VALUE_EQUAL;
|
|
}
|
|
return GST_VALUE_UNORDERED;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_deserialize_fraction_range (GValue * dest, const gchar * s)
|
|
{
|
|
g_warning ("unimplemented");
|
|
return FALSE;
|
|
}
|
|
|
|
/***********
|
|
* GstCaps *
|
|
***********/
|
|
|
|
/**
|
|
* gst_value_set_caps:
|
|
* @value: a GValue initialized to GST_TYPE_CAPS
|
|
* @caps: (transfer none): the caps to set the value to
|
|
*
|
|
* Sets the contents of @value to @caps. A reference to the
|
|
* provided @caps will be taken by the @value.
|
|
*/
|
|
void
|
|
gst_value_set_caps (GValue * value, const GstCaps * caps)
|
|
{
|
|
g_return_if_fail (G_IS_VALUE (value));
|
|
g_return_if_fail (G_VALUE_TYPE (value) == GST_TYPE_CAPS);
|
|
g_return_if_fail (caps == NULL || GST_IS_CAPS (caps));
|
|
|
|
g_value_set_boxed (value, caps);
|
|
}
|
|
|
|
/**
|
|
* gst_value_get_caps:
|
|
* @value: a GValue initialized to GST_TYPE_CAPS
|
|
*
|
|
* Gets the contents of @value. The reference count of the returned
|
|
* #GstCaps will not be modified, therefore the caller must take one
|
|
* before getting rid of the @value.
|
|
*
|
|
* Returns: (transfer none): the contents of @value
|
|
*/
|
|
const GstCaps *
|
|
gst_value_get_caps (const GValue * value)
|
|
{
|
|
g_return_val_if_fail (G_IS_VALUE (value), NULL);
|
|
g_return_val_if_fail (G_VALUE_TYPE (value) == GST_TYPE_CAPS, NULL);
|
|
|
|
return (GstCaps *) g_value_get_boxed (value);
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_serialize_caps (const GValue * value)
|
|
{
|
|
GstCaps *caps = g_value_get_boxed (value);
|
|
|
|
return gst_caps_to_string (caps);
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_deserialize_caps (GValue * dest, const gchar * s)
|
|
{
|
|
GstCaps *caps;
|
|
|
|
caps = gst_caps_from_string (s);
|
|
|
|
if (caps) {
|
|
g_value_take_boxed (dest, caps);
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
/****************
|
|
* GstStructure *
|
|
****************/
|
|
|
|
/**
|
|
* gst_value_set_structure:
|
|
* @value: a GValue initialized to GST_TYPE_STRUCTURE
|
|
* @structure: the structure to set the value to
|
|
*
|
|
* Sets the contents of @value to @structure. The actual
|
|
*
|
|
* Since: 0.10.15
|
|
*/
|
|
void
|
|
gst_value_set_structure (GValue * value, const GstStructure * structure)
|
|
{
|
|
g_return_if_fail (G_IS_VALUE (value));
|
|
g_return_if_fail (G_VALUE_TYPE (value) == GST_TYPE_STRUCTURE);
|
|
g_return_if_fail (structure == NULL || GST_IS_STRUCTURE (structure));
|
|
|
|
g_value_set_boxed (value, structure);
|
|
}
|
|
|
|
/**
|
|
* gst_value_get_structure:
|
|
* @value: a GValue initialized to GST_TYPE_STRUCTURE
|
|
*
|
|
* Gets the contents of @value.
|
|
*
|
|
* Returns: (transfer none): the contents of @value
|
|
*
|
|
* Since: 0.10.15
|
|
*/
|
|
const GstStructure *
|
|
gst_value_get_structure (const GValue * value)
|
|
{
|
|
g_return_val_if_fail (G_IS_VALUE (value), NULL);
|
|
g_return_val_if_fail (G_VALUE_TYPE (value) == GST_TYPE_STRUCTURE, NULL);
|
|
|
|
return (GstStructure *) g_value_get_boxed (value);
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_serialize_structure (const GValue * value)
|
|
{
|
|
GstStructure *structure = g_value_get_boxed (value);
|
|
|
|
return gst_string_take_and_wrap (gst_structure_to_string (structure));
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_deserialize_structure (GValue * dest, const gchar * s)
|
|
{
|
|
GstStructure *structure;
|
|
|
|
if (*s != '"') {
|
|
structure = gst_structure_from_string (s, NULL);
|
|
} else {
|
|
gchar *str = gst_string_unwrap (s);
|
|
|
|
if (G_UNLIKELY (!str))
|
|
return FALSE;
|
|
|
|
structure = gst_structure_from_string (str, NULL);
|
|
g_free (str);
|
|
}
|
|
|
|
if (G_LIKELY (structure)) {
|
|
g_value_take_boxed (dest, structure);
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
/*************
|
|
* GstBuffer *
|
|
*************/
|
|
|
|
static gint
|
|
gst_value_compare_buffer (const GValue * value1, const GValue * value2)
|
|
{
|
|
GstBuffer *buf1 = GST_BUFFER (gst_value_get_mini_object (value1));
|
|
GstBuffer *buf2 = GST_BUFFER (gst_value_get_mini_object (value2));
|
|
|
|
if (GST_BUFFER_SIZE (buf1) != GST_BUFFER_SIZE (buf2))
|
|
return GST_VALUE_UNORDERED;
|
|
if (GST_BUFFER_SIZE (buf1) == 0)
|
|
return GST_VALUE_EQUAL;
|
|
g_assert (GST_BUFFER_DATA (buf1));
|
|
g_assert (GST_BUFFER_DATA (buf2));
|
|
if (memcmp (GST_BUFFER_DATA (buf1), GST_BUFFER_DATA (buf2),
|
|
GST_BUFFER_SIZE (buf1)) == 0)
|
|
return GST_VALUE_EQUAL;
|
|
|
|
return GST_VALUE_UNORDERED;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_serialize_buffer (const GValue * value)
|
|
{
|
|
guint8 *data;
|
|
gint i;
|
|
gint size;
|
|
gchar *string;
|
|
GstBuffer *buffer;
|
|
|
|
buffer = gst_value_get_buffer (value);
|
|
if (buffer == NULL)
|
|
return NULL;
|
|
|
|
data = GST_BUFFER_DATA (buffer);
|
|
size = GST_BUFFER_SIZE (buffer);
|
|
|
|
string = g_malloc (size * 2 + 1);
|
|
for (i = 0; i < size; i++) {
|
|
sprintf (string + i * 2, "%02x", data[i]);
|
|
}
|
|
string[size * 2] = 0;
|
|
|
|
return string;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_deserialize_buffer (GValue * dest, const gchar * s)
|
|
{
|
|
GstBuffer *buffer;
|
|
gint len;
|
|
gchar ts[3];
|
|
guint8 *data;
|
|
gint i;
|
|
|
|
len = strlen (s);
|
|
if (len & 1)
|
|
goto wrong_length;
|
|
|
|
buffer = gst_buffer_new_and_alloc (len / 2);
|
|
data = GST_BUFFER_DATA (buffer);
|
|
for (i = 0; i < len / 2; i++) {
|
|
if (!isxdigit ((int) s[i * 2]) || !isxdigit ((int) s[i * 2 + 1]))
|
|
goto wrong_char;
|
|
|
|
ts[0] = s[i * 2 + 0];
|
|
ts[1] = s[i * 2 + 1];
|
|
ts[2] = 0;
|
|
|
|
data[i] = (guint8) strtoul (ts, NULL, 16);
|
|
}
|
|
|
|
gst_value_take_buffer (dest, buffer);
|
|
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
wrong_length:
|
|
{
|
|
return FALSE;
|
|
}
|
|
wrong_char:
|
|
{
|
|
gst_buffer_unref (buffer);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
|
|
/***********
|
|
* boolean *
|
|
***********/
|
|
|
|
static gint
|
|
gst_value_compare_boolean (const GValue * value1, const GValue * value2)
|
|
{
|
|
if ((value1->data[0].v_int != 0) == (value2->data[0].v_int != 0))
|
|
return GST_VALUE_EQUAL;
|
|
return GST_VALUE_UNORDERED;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_serialize_boolean (const GValue * value)
|
|
{
|
|
if (value->data[0].v_int) {
|
|
return g_strdup ("true");
|
|
}
|
|
return g_strdup ("false");
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_deserialize_boolean (GValue * dest, const gchar * s)
|
|
{
|
|
gboolean ret = FALSE;
|
|
|
|
if (g_ascii_strcasecmp (s, "true") == 0 ||
|
|
g_ascii_strcasecmp (s, "yes") == 0 ||
|
|
g_ascii_strcasecmp (s, "t") == 0 || strcmp (s, "1") == 0) {
|
|
g_value_set_boolean (dest, TRUE);
|
|
ret = TRUE;
|
|
} else if (g_ascii_strcasecmp (s, "false") == 0 ||
|
|
g_ascii_strcasecmp (s, "no") == 0 ||
|
|
g_ascii_strcasecmp (s, "f") == 0 || strcmp (s, "0") == 0) {
|
|
g_value_set_boolean (dest, FALSE);
|
|
ret = TRUE;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#define CREATE_SERIALIZATION_START(_type,_macro) \
|
|
static gint \
|
|
gst_value_compare_ ## _type \
|
|
(const GValue * value1, const GValue * value2) \
|
|
{ \
|
|
g ## _type val1 = g_value_get_ ## _type (value1); \
|
|
g ## _type val2 = g_value_get_ ## _type (value2); \
|
|
if (val1 > val2) \
|
|
return GST_VALUE_GREATER_THAN; \
|
|
if (val1 < val2) \
|
|
return GST_VALUE_LESS_THAN; \
|
|
return GST_VALUE_EQUAL; \
|
|
} \
|
|
\
|
|
static gchar * \
|
|
gst_value_serialize_ ## _type (const GValue * value) \
|
|
{ \
|
|
GValue val = { 0, }; \
|
|
g_value_init (&val, G_TYPE_STRING); \
|
|
if (!g_value_transform (value, &val)) \
|
|
g_assert_not_reached (); \
|
|
/* NO_COPY_MADNESS!!! */ \
|
|
return (char *) g_value_get_string (&val); \
|
|
}
|
|
|
|
/* deserialize the given s into to as a gint64.
|
|
* check if the result is actually storeable in the given size number of
|
|
* bytes.
|
|
*/
|
|
static gboolean
|
|
gst_value_deserialize_int_helper (gint64 * to, const gchar * s,
|
|
gint64 min, gint64 max, gint size)
|
|
{
|
|
gboolean ret = FALSE;
|
|
gchar *end;
|
|
gint64 mask = -1;
|
|
|
|
errno = 0;
|
|
*to = g_ascii_strtoull (s, &end, 0);
|
|
/* a range error is a definitive no-no */
|
|
if (errno == ERANGE) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (*end == 0) {
|
|
ret = TRUE;
|
|
} else {
|
|
if (g_ascii_strcasecmp (s, "little_endian") == 0) {
|
|
*to = G_LITTLE_ENDIAN;
|
|
ret = TRUE;
|
|
} else if (g_ascii_strcasecmp (s, "big_endian") == 0) {
|
|
*to = G_BIG_ENDIAN;
|
|
ret = TRUE;
|
|
} else if (g_ascii_strcasecmp (s, "byte_order") == 0) {
|
|
*to = G_BYTE_ORDER;
|
|
ret = TRUE;
|
|
} else if (g_ascii_strcasecmp (s, "min") == 0) {
|
|
*to = min;
|
|
ret = TRUE;
|
|
} else if (g_ascii_strcasecmp (s, "max") == 0) {
|
|
*to = max;
|
|
ret = TRUE;
|
|
}
|
|
}
|
|
if (ret) {
|
|
/* by definition, a gint64 fits into a gint64; so ignore those */
|
|
if (size != sizeof (mask)) {
|
|
if (*to >= 0) {
|
|
/* for positive numbers, we create a mask of 1's outside of the range
|
|
* and 0's inside the range. An and will thus keep only 1 bits
|
|
* outside of the range */
|
|
mask <<= (size * 8);
|
|
if ((mask & *to) != 0) {
|
|
ret = FALSE;
|
|
}
|
|
} else {
|
|
/* for negative numbers, we do a 2's complement version */
|
|
mask <<= ((size * 8) - 1);
|
|
if ((mask & *to) != mask) {
|
|
ret = FALSE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
#define CREATE_SERIALIZATION(_type,_macro) \
|
|
CREATE_SERIALIZATION_START(_type,_macro) \
|
|
\
|
|
static gboolean \
|
|
gst_value_deserialize_ ## _type (GValue * dest, const gchar *s) \
|
|
{ \
|
|
gint64 x; \
|
|
\
|
|
if (gst_value_deserialize_int_helper (&x, s, G_MIN ## _macro, \
|
|
G_MAX ## _macro, sizeof (g ## _type))) { \
|
|
g_value_set_ ## _type (dest, /*(g ## _type)*/ x); \
|
|
return TRUE; \
|
|
} else { \
|
|
return FALSE; \
|
|
} \
|
|
}
|
|
|
|
#define CREATE_USERIALIZATION(_type,_macro) \
|
|
CREATE_SERIALIZATION_START(_type,_macro) \
|
|
\
|
|
static gboolean \
|
|
gst_value_deserialize_ ## _type (GValue * dest, const gchar *s) \
|
|
{ \
|
|
gint64 x; \
|
|
gchar *end; \
|
|
gboolean ret = FALSE; \
|
|
\
|
|
errno = 0; \
|
|
x = g_ascii_strtoull (s, &end, 0); \
|
|
/* a range error is a definitive no-no */ \
|
|
if (errno == ERANGE) { \
|
|
return FALSE; \
|
|
} \
|
|
/* the cast ensures the range check later on makes sense */ \
|
|
x = (g ## _type) x; \
|
|
if (*end == 0) { \
|
|
ret = TRUE; \
|
|
} else { \
|
|
if (g_ascii_strcasecmp (s, "little_endian") == 0) { \
|
|
x = G_LITTLE_ENDIAN; \
|
|
ret = TRUE; \
|
|
} else if (g_ascii_strcasecmp (s, "big_endian") == 0) { \
|
|
x = G_BIG_ENDIAN; \
|
|
ret = TRUE; \
|
|
} else if (g_ascii_strcasecmp (s, "byte_order") == 0) { \
|
|
x = G_BYTE_ORDER; \
|
|
ret = TRUE; \
|
|
} else if (g_ascii_strcasecmp (s, "min") == 0) { \
|
|
x = 0; \
|
|
ret = TRUE; \
|
|
} else if (g_ascii_strcasecmp (s, "max") == 0) { \
|
|
x = G_MAX ## _macro; \
|
|
ret = TRUE; \
|
|
} \
|
|
} \
|
|
if (ret) { \
|
|
if (x > G_MAX ## _macro) { \
|
|
ret = FALSE; \
|
|
} else { \
|
|
g_value_set_ ## _type (dest, x); \
|
|
} \
|
|
} \
|
|
return ret; \
|
|
}
|
|
|
|
#define REGISTER_SERIALIZATION(_gtype, _type) \
|
|
G_STMT_START { \
|
|
static const GstValueTable gst_value = { \
|
|
_gtype, \
|
|
gst_value_compare_ ## _type, \
|
|
gst_value_serialize_ ## _type, \
|
|
gst_value_deserialize_ ## _type, \
|
|
}; \
|
|
\
|
|
gst_value_register (&gst_value); \
|
|
} G_STMT_END
|
|
|
|
CREATE_SERIALIZATION (int, INT);
|
|
CREATE_SERIALIZATION (int64, INT64);
|
|
CREATE_SERIALIZATION (long, LONG);
|
|
|
|
CREATE_USERIALIZATION (uint, UINT);
|
|
CREATE_USERIALIZATION (uint64, UINT64);
|
|
CREATE_USERIALIZATION (ulong, ULONG);
|
|
|
|
/* FIXME 0.11: remove this again, plugins shouldn't have uchar properties */
|
|
#ifndef G_MAXUCHAR
|
|
#define G_MAXUCHAR 255
|
|
#endif
|
|
CREATE_USERIALIZATION (uchar, UCHAR);
|
|
|
|
/**********
|
|
* double *
|
|
**********/
|
|
static gint
|
|
gst_value_compare_double (const GValue * value1, const GValue * value2)
|
|
{
|
|
if (value1->data[0].v_double > value2->data[0].v_double)
|
|
return GST_VALUE_GREATER_THAN;
|
|
if (value1->data[0].v_double < value2->data[0].v_double)
|
|
return GST_VALUE_LESS_THAN;
|
|
if (value1->data[0].v_double == value2->data[0].v_double)
|
|
return GST_VALUE_EQUAL;
|
|
return GST_VALUE_UNORDERED;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_serialize_double (const GValue * value)
|
|
{
|
|
gchar d[G_ASCII_DTOSTR_BUF_SIZE];
|
|
|
|
g_ascii_dtostr (d, G_ASCII_DTOSTR_BUF_SIZE, value->data[0].v_double);
|
|
return g_strdup (d);
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_deserialize_double (GValue * dest, const gchar * s)
|
|
{
|
|
gdouble x;
|
|
gboolean ret = FALSE;
|
|
gchar *end;
|
|
|
|
x = g_ascii_strtod (s, &end);
|
|
if (*end == 0) {
|
|
ret = TRUE;
|
|
} else {
|
|
if (g_ascii_strcasecmp (s, "min") == 0) {
|
|
x = -G_MAXDOUBLE;
|
|
ret = TRUE;
|
|
} else if (g_ascii_strcasecmp (s, "max") == 0) {
|
|
x = G_MAXDOUBLE;
|
|
ret = TRUE;
|
|
}
|
|
}
|
|
if (ret) {
|
|
g_value_set_double (dest, x);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/*********
|
|
* float *
|
|
*********/
|
|
|
|
static gint
|
|
gst_value_compare_float (const GValue * value1, const GValue * value2)
|
|
{
|
|
if (value1->data[0].v_float > value2->data[0].v_float)
|
|
return GST_VALUE_GREATER_THAN;
|
|
if (value1->data[0].v_float < value2->data[0].v_float)
|
|
return GST_VALUE_LESS_THAN;
|
|
if (value1->data[0].v_float == value2->data[0].v_float)
|
|
return GST_VALUE_EQUAL;
|
|
return GST_VALUE_UNORDERED;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_serialize_float (const GValue * value)
|
|
{
|
|
gchar d[G_ASCII_DTOSTR_BUF_SIZE];
|
|
|
|
g_ascii_dtostr (d, G_ASCII_DTOSTR_BUF_SIZE, value->data[0].v_float);
|
|
return g_strdup (d);
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_deserialize_float (GValue * dest, const gchar * s)
|
|
{
|
|
gdouble x;
|
|
gboolean ret = FALSE;
|
|
gchar *end;
|
|
|
|
x = g_ascii_strtod (s, &end);
|
|
if (*end == 0) {
|
|
ret = TRUE;
|
|
} else {
|
|
if (g_ascii_strcasecmp (s, "min") == 0) {
|
|
x = -G_MAXFLOAT;
|
|
ret = TRUE;
|
|
} else if (g_ascii_strcasecmp (s, "max") == 0) {
|
|
x = G_MAXFLOAT;
|
|
ret = TRUE;
|
|
}
|
|
}
|
|
if (x > G_MAXFLOAT || x < -G_MAXFLOAT)
|
|
ret = FALSE;
|
|
if (ret) {
|
|
g_value_set_float (dest, (float) x);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/**********
|
|
* string *
|
|
**********/
|
|
|
|
static gint
|
|
gst_value_compare_string (const GValue * value1, const GValue * value2)
|
|
{
|
|
if (G_UNLIKELY (!value1->data[0].v_pointer || !value2->data[0].v_pointer)) {
|
|
/* if only one is NULL, no match - otherwise both NULL == EQUAL */
|
|
if (value1->data[0].v_pointer != value2->data[0].v_pointer)
|
|
return GST_VALUE_UNORDERED;
|
|
} else {
|
|
gint x = strcmp (value1->data[0].v_pointer, value2->data[0].v_pointer);
|
|
|
|
if (x < 0)
|
|
return GST_VALUE_LESS_THAN;
|
|
if (x > 0)
|
|
return GST_VALUE_GREATER_THAN;
|
|
}
|
|
|
|
return GST_VALUE_EQUAL;
|
|
}
|
|
|
|
static gint
|
|
gst_string_measure_wrapping (const gchar * s)
|
|
{
|
|
gint len;
|
|
gboolean wrap = FALSE;
|
|
|
|
if (G_UNLIKELY (s == NULL))
|
|
return -1;
|
|
|
|
/* Special case: the actual string NULL needs wrapping */
|
|
if (G_UNLIKELY (strcmp (s, "NULL") == 0))
|
|
return 4;
|
|
|
|
len = 0;
|
|
while (*s) {
|
|
if (GST_ASCII_IS_STRING (*s)) {
|
|
len++;
|
|
} else if (*s < 0x20 || *s >= 0x7f) {
|
|
wrap = TRUE;
|
|
len += 4;
|
|
} else {
|
|
wrap = TRUE;
|
|
len += 2;
|
|
}
|
|
s++;
|
|
}
|
|
|
|
/* Wrap the string if we found something that needs
|
|
* wrapping, or the empty string (len == 0) */
|
|
return (wrap || len == 0) ? len : -1;
|
|
}
|
|
|
|
static gchar *
|
|
gst_string_wrap_inner (const gchar * s, gint len)
|
|
{
|
|
gchar *d, *e;
|
|
|
|
e = d = g_malloc (len + 3);
|
|
|
|
*e++ = '\"';
|
|
while (*s) {
|
|
if (GST_ASCII_IS_STRING (*s)) {
|
|
*e++ = *s++;
|
|
} else if (*s < 0x20 || *s >= 0x7f) {
|
|
*e++ = '\\';
|
|
*e++ = '0' + ((*(guchar *) s) >> 6);
|
|
*e++ = '0' + (((*s) >> 3) & 0x7);
|
|
*e++ = '0' + ((*s++) & 0x7);
|
|
} else {
|
|
*e++ = '\\';
|
|
*e++ = *s++;
|
|
}
|
|
}
|
|
*e++ = '\"';
|
|
*e = 0;
|
|
|
|
g_assert (e - d <= len + 3);
|
|
return d;
|
|
}
|
|
|
|
/* Do string wrapping/escaping */
|
|
static gchar *
|
|
gst_string_wrap (const gchar * s)
|
|
{
|
|
gint len = gst_string_measure_wrapping (s);
|
|
|
|
if (G_LIKELY (len < 0))
|
|
return g_strdup (s);
|
|
|
|
return gst_string_wrap_inner (s, len);
|
|
}
|
|
|
|
/* Same as above, but take ownership of the string */
|
|
static gchar *
|
|
gst_string_take_and_wrap (gchar * s)
|
|
{
|
|
gchar *out;
|
|
gint len = gst_string_measure_wrapping (s);
|
|
|
|
if (G_LIKELY (len < 0))
|
|
return s;
|
|
|
|
out = gst_string_wrap_inner (s, len);
|
|
g_free (s);
|
|
|
|
return out;
|
|
}
|
|
|
|
/*
|
|
* This function takes a string delimited with double quotes (")
|
|
* and unescapes any \xxx octal numbers.
|
|
*
|
|
* If sequences of \y are found where y is not in the range of
|
|
* 0->3, y is copied unescaped.
|
|
*
|
|
* If \xyy is found where x is an octal number but y is not, an
|
|
* error is encountered and NULL is returned.
|
|
*
|
|
* the input string must be \0 terminated.
|
|
*/
|
|
static gchar *
|
|
gst_string_unwrap (const gchar * s)
|
|
{
|
|
gchar *ret;
|
|
gchar *read, *write;
|
|
|
|
/* NULL string returns NULL */
|
|
if (s == NULL)
|
|
return NULL;
|
|
|
|
/* strings not starting with " are invalid */
|
|
if (*s != '"')
|
|
return NULL;
|
|
|
|
/* make copy of original string to hold the result. This
|
|
* string will always be smaller than the original */
|
|
ret = g_strdup (s);
|
|
read = ret;
|
|
write = ret;
|
|
|
|
/* need to move to the next position as we parsed the " */
|
|
read++;
|
|
|
|
while (*read) {
|
|
if (GST_ASCII_IS_STRING (*read)) {
|
|
/* normal chars are just copied */
|
|
*write++ = *read++;
|
|
} else if (*read == '"') {
|
|
/* quote marks end of string */
|
|
break;
|
|
} else if (*read == '\\') {
|
|
/* got an escape char, move to next position to read a tripplet
|
|
* of octal numbers */
|
|
read++;
|
|
/* is the next char a possible first octal number? */
|
|
if (*read >= '0' && *read <= '3') {
|
|
/* parse other 2 numbers, if one of them is not in the range of
|
|
* an octal number, we error. We also catch the case where a zero
|
|
* byte is found here. */
|
|
if (read[1] < '0' || read[1] > '7' || read[2] < '0' || read[2] > '7')
|
|
goto beach;
|
|
|
|
/* now convert the octal number to a byte again. */
|
|
*write++ = ((read[0] - '0') << 6) +
|
|
((read[1] - '0') << 3) + (read[2] - '0');
|
|
|
|
read += 3;
|
|
} else {
|
|
/* if we run into a \0 here, we definitely won't get a quote later */
|
|
if (*read == 0)
|
|
goto beach;
|
|
|
|
/* else copy \X sequence */
|
|
*write++ = *read++;
|
|
}
|
|
} else {
|
|
/* weird character, error */
|
|
goto beach;
|
|
}
|
|
}
|
|
/* if the string is not ending in " and zero terminated, we error */
|
|
if (*read != '"' || read[1] != '\0')
|
|
goto beach;
|
|
|
|
/* null terminate result string and return */
|
|
*write = '\0';
|
|
return ret;
|
|
|
|
beach:
|
|
g_free (ret);
|
|
return NULL;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_serialize_string (const GValue * value)
|
|
{
|
|
return gst_string_wrap (value->data[0].v_pointer);
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_deserialize_string (GValue * dest, const gchar * s)
|
|
{
|
|
if (G_UNLIKELY (strcmp (s, "NULL") == 0)) {
|
|
g_value_set_string (dest, NULL);
|
|
return TRUE;
|
|
} else if (G_LIKELY (*s != '"')) {
|
|
if (!g_utf8_validate (s, -1, NULL))
|
|
return FALSE;
|
|
g_value_set_string (dest, s);
|
|
return TRUE;
|
|
} else {
|
|
gchar *str = gst_string_unwrap (s);
|
|
if (G_UNLIKELY (!str))
|
|
return FALSE;
|
|
g_value_take_string (dest, str);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/********
|
|
* enum *
|
|
********/
|
|
|
|
static gint
|
|
gst_value_compare_enum (const GValue * value1, const GValue * value2)
|
|
{
|
|
GEnumValue *en1, *en2;
|
|
GEnumClass *klass1 = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (value1));
|
|
GEnumClass *klass2 = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (value2));
|
|
|
|
g_return_val_if_fail (klass1, GST_VALUE_UNORDERED);
|
|
g_return_val_if_fail (klass2, GST_VALUE_UNORDERED);
|
|
en1 = g_enum_get_value (klass1, g_value_get_enum (value1));
|
|
en2 = g_enum_get_value (klass2, g_value_get_enum (value2));
|
|
g_type_class_unref (klass1);
|
|
g_type_class_unref (klass2);
|
|
g_return_val_if_fail (en1, GST_VALUE_UNORDERED);
|
|
g_return_val_if_fail (en2, GST_VALUE_UNORDERED);
|
|
if (en1->value < en2->value)
|
|
return GST_VALUE_LESS_THAN;
|
|
if (en1->value > en2->value)
|
|
return GST_VALUE_GREATER_THAN;
|
|
|
|
return GST_VALUE_EQUAL;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_serialize_enum (const GValue * value)
|
|
{
|
|
GEnumValue *en;
|
|
GEnumClass *klass = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (value));
|
|
|
|
g_return_val_if_fail (klass, NULL);
|
|
en = g_enum_get_value (klass, g_value_get_enum (value));
|
|
g_type_class_unref (klass);
|
|
|
|
/* might be one of the custom formats registered later */
|
|
if (G_UNLIKELY (en == NULL && G_VALUE_TYPE (value) == GST_TYPE_FORMAT)) {
|
|
const GstFormatDefinition *format_def;
|
|
|
|
format_def = gst_format_get_details ((GstFormat) g_value_get_enum (value));
|
|
g_return_val_if_fail (format_def != NULL, NULL);
|
|
return g_strdup (format_def->description);
|
|
}
|
|
|
|
g_return_val_if_fail (en, NULL);
|
|
return g_strdup (en->value_name);
|
|
}
|
|
|
|
static gint
|
|
gst_value_deserialize_enum_iter_cmp (const GstFormatDefinition * format_def,
|
|
const gchar * s)
|
|
{
|
|
if (g_ascii_strcasecmp (s, format_def->nick) == 0)
|
|
return 0;
|
|
|
|
return g_ascii_strcasecmp (s, format_def->description);
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_deserialize_enum (GValue * dest, const gchar * s)
|
|
{
|
|
GEnumValue *en;
|
|
gchar *endptr = NULL;
|
|
GEnumClass *klass = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (dest));
|
|
|
|
g_return_val_if_fail (klass, FALSE);
|
|
if (!(en = g_enum_get_value_by_name (klass, s))) {
|
|
if (!(en = g_enum_get_value_by_nick (klass, s))) {
|
|
gint i = strtol (s, &endptr, 0);
|
|
|
|
if (endptr && *endptr == '\0') {
|
|
en = g_enum_get_value (klass, i);
|
|
}
|
|
}
|
|
}
|
|
g_type_class_unref (klass);
|
|
|
|
/* might be one of the custom formats registered later */
|
|
if (G_UNLIKELY (en == NULL && G_VALUE_TYPE (dest) == GST_TYPE_FORMAT)) {
|
|
const GstFormatDefinition *format_def;
|
|
GstIterator *iter;
|
|
|
|
iter = gst_format_iterate_definitions ();
|
|
|
|
format_def = gst_iterator_find_custom (iter,
|
|
(GCompareFunc) gst_value_deserialize_enum_iter_cmp, (gpointer) s);
|
|
|
|
g_return_val_if_fail (format_def != NULL, FALSE);
|
|
g_value_set_enum (dest, (gint) format_def->value);
|
|
gst_iterator_free (iter);
|
|
return TRUE;
|
|
}
|
|
|
|
g_return_val_if_fail (en, FALSE);
|
|
g_value_set_enum (dest, en->value);
|
|
return TRUE;
|
|
}
|
|
|
|
/********
|
|
* flags *
|
|
********/
|
|
|
|
/* we just compare the value here */
|
|
static gint
|
|
gst_value_compare_flags (const GValue * value1, const GValue * value2)
|
|
{
|
|
guint fl1, fl2;
|
|
GFlagsClass *klass1 =
|
|
(GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (value1));
|
|
GFlagsClass *klass2 =
|
|
(GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (value2));
|
|
|
|
g_return_val_if_fail (klass1, GST_VALUE_UNORDERED);
|
|
g_return_val_if_fail (klass2, GST_VALUE_UNORDERED);
|
|
fl1 = g_value_get_flags (value1);
|
|
fl2 = g_value_get_flags (value2);
|
|
g_type_class_unref (klass1);
|
|
g_type_class_unref (klass2);
|
|
if (fl1 < fl2)
|
|
return GST_VALUE_LESS_THAN;
|
|
if (fl1 > fl2)
|
|
return GST_VALUE_GREATER_THAN;
|
|
|
|
return GST_VALUE_EQUAL;
|
|
}
|
|
|
|
/* the different flags are serialized separated with a + */
|
|
static gchar *
|
|
gst_value_serialize_flags (const GValue * value)
|
|
{
|
|
guint flags;
|
|
GFlagsValue *fl;
|
|
GFlagsClass *klass = (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (value));
|
|
gchar *result, *tmp;
|
|
gboolean first = TRUE;
|
|
|
|
g_return_val_if_fail (klass, NULL);
|
|
|
|
flags = g_value_get_flags (value);
|
|
|
|
/* if no flags are set, try to serialize to the _NONE string */
|
|
if (!flags) {
|
|
fl = g_flags_get_first_value (klass, flags);
|
|
return g_strdup (fl->value_name);
|
|
}
|
|
|
|
/* some flags are set, so serialize one by one */
|
|
result = g_strdup ("");
|
|
while (flags) {
|
|
fl = g_flags_get_first_value (klass, flags);
|
|
if (fl != NULL) {
|
|
tmp = g_strconcat (result, (first ? "" : "+"), fl->value_name, NULL);
|
|
g_free (result);
|
|
result = tmp;
|
|
first = FALSE;
|
|
|
|
/* clear flag */
|
|
flags &= ~fl->value;
|
|
}
|
|
}
|
|
g_type_class_unref (klass);
|
|
|
|
return result;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_deserialize_flags (GValue * dest, const gchar * s)
|
|
{
|
|
GFlagsValue *fl;
|
|
gchar *endptr = NULL;
|
|
GFlagsClass *klass = (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (dest));
|
|
gchar **split;
|
|
guint flags;
|
|
gint i;
|
|
|
|
g_return_val_if_fail (klass, FALSE);
|
|
|
|
/* split into parts delimited with + */
|
|
split = g_strsplit (s, "+", 0);
|
|
|
|
flags = 0;
|
|
i = 0;
|
|
/* loop over each part */
|
|
while (split[i]) {
|
|
if (!(fl = g_flags_get_value_by_name (klass, split[i]))) {
|
|
if (!(fl = g_flags_get_value_by_nick (klass, split[i]))) {
|
|
gint val = strtol (split[i], &endptr, 0);
|
|
|
|
/* just or numeric value */
|
|
if (endptr && *endptr == '\0') {
|
|
flags |= val;
|
|
}
|
|
}
|
|
}
|
|
if (fl) {
|
|
flags |= fl->value;
|
|
}
|
|
i++;
|
|
}
|
|
g_strfreev (split);
|
|
g_type_class_unref (klass);
|
|
g_value_set_flags (dest, flags);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/*********
|
|
* union *
|
|
*********/
|
|
|
|
static gboolean
|
|
gst_value_union_int_int_range (GValue * dest, const GValue * src1,
|
|
const GValue * src2)
|
|
{
|
|
if (src2->data[0].v_int <= src1->data[0].v_int &&
|
|
src2->data[1].v_int >= src1->data[0].v_int) {
|
|
gst_value_init_and_copy (dest, src2);
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_union_int_range_int_range (GValue * dest, const GValue * src1,
|
|
const GValue * src2)
|
|
{
|
|
gint min;
|
|
gint max;
|
|
|
|
min = MAX (src1->data[0].v_int, src2->data[0].v_int);
|
|
max = MIN (src1->data[1].v_int, src2->data[1].v_int);
|
|
|
|
if (min <= max) {
|
|
g_value_init (dest, GST_TYPE_INT_RANGE);
|
|
gst_value_set_int_range (dest,
|
|
MIN (src1->data[0].v_int, src2->data[0].v_int),
|
|
MAX (src1->data[1].v_int, src2->data[1].v_int));
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/****************
|
|
* intersection *
|
|
****************/
|
|
|
|
static gboolean
|
|
gst_value_intersect_int_int_range (GValue * dest, const GValue * src1,
|
|
const GValue * src2)
|
|
{
|
|
if (src2->data[0].v_int <= src1->data[0].v_int &&
|
|
src2->data[1].v_int >= src1->data[0].v_int) {
|
|
if (dest)
|
|
gst_value_init_and_copy (dest, src1);
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_intersect_int_range_int_range (GValue * dest, const GValue * src1,
|
|
const GValue * src2)
|
|
{
|
|
gint min;
|
|
gint max;
|
|
|
|
min = MAX (src1->data[0].v_int, src2->data[0].v_int);
|
|
max = MIN (src1->data[1].v_int, src2->data[1].v_int);
|
|
|
|
if (min < max) {
|
|
if (dest) {
|
|
g_value_init (dest, GST_TYPE_INT_RANGE);
|
|
gst_value_set_int_range (dest, min, max);
|
|
}
|
|
return TRUE;
|
|
}
|
|
if (min == max) {
|
|
if (dest) {
|
|
g_value_init (dest, G_TYPE_INT);
|
|
g_value_set_int (dest, min);
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_intersect_int64_int64_range (GValue * dest, const GValue * src1,
|
|
const GValue * src2)
|
|
{
|
|
if (src2->data[0].v_int64 <= src1->data[0].v_int64 &&
|
|
src2->data[1].v_int64 >= src1->data[0].v_int64) {
|
|
if (dest)
|
|
gst_value_init_and_copy (dest, src1);
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_intersect_int64_range_int64_range (GValue * dest, const GValue * src1,
|
|
const GValue * src2)
|
|
{
|
|
gint64 min;
|
|
gint64 max;
|
|
|
|
min = MAX (src1->data[0].v_int64, src2->data[0].v_int64);
|
|
max = MIN (src1->data[1].v_int64, src2->data[1].v_int64);
|
|
|
|
if (min < max) {
|
|
if (dest) {
|
|
g_value_init (dest, GST_TYPE_INT64_RANGE);
|
|
gst_value_set_int64_range (dest, min, max);
|
|
}
|
|
return TRUE;
|
|
}
|
|
if (min == max) {
|
|
if (dest) {
|
|
g_value_init (dest, G_TYPE_INT64);
|
|
g_value_set_int64 (dest, min);
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_intersect_double_double_range (GValue * dest, const GValue * src1,
|
|
const GValue * src2)
|
|
{
|
|
if (src2->data[0].v_double <= src1->data[0].v_double &&
|
|
src2->data[1].v_double >= src1->data[0].v_double) {
|
|
if (dest)
|
|
gst_value_init_and_copy (dest, src1);
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_intersect_double_range_double_range (GValue * dest,
|
|
const GValue * src1, const GValue * src2)
|
|
{
|
|
gdouble min;
|
|
gdouble max;
|
|
|
|
min = MAX (src1->data[0].v_double, src2->data[0].v_double);
|
|
max = MIN (src1->data[1].v_double, src2->data[1].v_double);
|
|
|
|
if (min < max) {
|
|
if (dest) {
|
|
g_value_init (dest, GST_TYPE_DOUBLE_RANGE);
|
|
gst_value_set_double_range (dest, min, max);
|
|
}
|
|
return TRUE;
|
|
}
|
|
if (min == max) {
|
|
if (dest) {
|
|
g_value_init (dest, G_TYPE_DOUBLE);
|
|
g_value_set_int (dest, (int) min);
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_intersect_list (GValue * dest, const GValue * value1,
|
|
const GValue * value2)
|
|
{
|
|
guint i, size;
|
|
GValue intersection = { 0, };
|
|
gboolean ret = FALSE;
|
|
|
|
size = VALUE_LIST_SIZE (value1);
|
|
for (i = 0; i < size; i++) {
|
|
const GValue *cur = VALUE_LIST_GET_VALUE (value1, i);
|
|
|
|
/* quicker version when we don't need the resulting set */
|
|
if (!dest) {
|
|
if (gst_value_intersect (NULL, cur, value2)) {
|
|
ret = TRUE;
|
|
break;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (gst_value_intersect (&intersection, cur, value2)) {
|
|
/* append value */
|
|
if (!ret) {
|
|
gst_value_init_and_copy (dest, &intersection);
|
|
ret = TRUE;
|
|
} else if (GST_VALUE_HOLDS_LIST (dest)) {
|
|
gst_value_list_append_value (dest, &intersection);
|
|
} else {
|
|
GValue temp = { 0, };
|
|
|
|
gst_value_init_and_copy (&temp, dest);
|
|
g_value_unset (dest);
|
|
gst_value_list_merge (dest, &temp, &intersection);
|
|
g_value_unset (&temp);
|
|
}
|
|
g_value_unset (&intersection);
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_intersect_array (GValue * dest, const GValue * src1,
|
|
const GValue * src2)
|
|
{
|
|
guint size;
|
|
guint n;
|
|
GValue val = { 0 };
|
|
|
|
/* only works on similar-sized arrays */
|
|
size = gst_value_array_get_size (src1);
|
|
if (size != gst_value_array_get_size (src2))
|
|
return FALSE;
|
|
|
|
/* quicker value when we don't need the resulting set */
|
|
if (!dest) {
|
|
for (n = 0; n < size; n++) {
|
|
if (!gst_value_intersect (NULL, gst_value_array_get_value (src1, n),
|
|
gst_value_array_get_value (src2, n))) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
g_value_init (dest, GST_TYPE_ARRAY);
|
|
|
|
for (n = 0; n < size; n++) {
|
|
if (!gst_value_intersect (&val, gst_value_array_get_value (src1, n),
|
|
gst_value_array_get_value (src2, n))) {
|
|
g_value_unset (dest);
|
|
return FALSE;
|
|
}
|
|
gst_value_array_append_value (dest, &val);
|
|
g_value_unset (&val);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_intersect_fraction_fraction_range (GValue * dest, const GValue * src1,
|
|
const GValue * src2)
|
|
{
|
|
gint res1, res2;
|
|
GValue *vals;
|
|
GstValueCompareFunc compare;
|
|
|
|
vals = src2->data[0].v_pointer;
|
|
|
|
if (vals == NULL)
|
|
return FALSE;
|
|
|
|
if ((compare = gst_value_get_compare_func (src1))) {
|
|
res1 = gst_value_compare_with_func (&vals[0], src1, compare);
|
|
res2 = gst_value_compare_with_func (&vals[1], src1, compare);
|
|
|
|
if ((res1 == GST_VALUE_EQUAL || res1 == GST_VALUE_LESS_THAN) &&
|
|
(res2 == GST_VALUE_EQUAL || res2 == GST_VALUE_GREATER_THAN)) {
|
|
if (dest)
|
|
gst_value_init_and_copy (dest, src1);
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_intersect_fraction_range_fraction_range (GValue * dest,
|
|
const GValue * src1, const GValue * src2)
|
|
{
|
|
GValue *min;
|
|
GValue *max;
|
|
gint res;
|
|
GValue *vals1, *vals2;
|
|
GstValueCompareFunc compare;
|
|
|
|
vals1 = src1->data[0].v_pointer;
|
|
vals2 = src2->data[0].v_pointer;
|
|
g_return_val_if_fail (vals1 != NULL && vals2 != NULL, FALSE);
|
|
|
|
if ((compare = gst_value_get_compare_func (&vals1[0]))) {
|
|
/* min = MAX (src1.start, src2.start) */
|
|
res = gst_value_compare_with_func (&vals1[0], &vals2[0], compare);
|
|
g_return_val_if_fail (res != GST_VALUE_UNORDERED, FALSE);
|
|
if (res == GST_VALUE_LESS_THAN)
|
|
min = &vals2[0]; /* Take the max of the 2 */
|
|
else
|
|
min = &vals1[0];
|
|
|
|
/* max = MIN (src1.end, src2.end) */
|
|
res = gst_value_compare_with_func (&vals1[1], &vals2[1], compare);
|
|
g_return_val_if_fail (res != GST_VALUE_UNORDERED, FALSE);
|
|
if (res == GST_VALUE_GREATER_THAN)
|
|
max = &vals2[1]; /* Take the min of the 2 */
|
|
else
|
|
max = &vals1[1];
|
|
|
|
res = gst_value_compare_with_func (min, max, compare);
|
|
g_return_val_if_fail (res != GST_VALUE_UNORDERED, FALSE);
|
|
if (res == GST_VALUE_LESS_THAN) {
|
|
if (dest) {
|
|
g_value_init (dest, GST_TYPE_FRACTION_RANGE);
|
|
vals1 = dest->data[0].v_pointer;
|
|
g_value_copy (min, &vals1[0]);
|
|
g_value_copy (max, &vals1[1]);
|
|
}
|
|
return TRUE;
|
|
}
|
|
if (res == GST_VALUE_EQUAL) {
|
|
if (dest)
|
|
gst_value_init_and_copy (dest, min);
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/***************
|
|
* subtraction *
|
|
***************/
|
|
|
|
static gboolean
|
|
gst_value_subtract_int_int_range (GValue * dest, const GValue * minuend,
|
|
const GValue * subtrahend)
|
|
{
|
|
gint min = gst_value_get_int_range_min (subtrahend);
|
|
gint max = gst_value_get_int_range_max (subtrahend);
|
|
gint val = g_value_get_int (minuend);
|
|
|
|
/* subtracting a range from an int only works if the int is not in the
|
|
* range */
|
|
if (val < min || val > max) {
|
|
/* and the result is the int */
|
|
if (dest)
|
|
gst_value_init_and_copy (dest, minuend);
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
/* creates a new int range based on input values.
|
|
*/
|
|
static gboolean
|
|
gst_value_create_new_range (GValue * dest, gint min1, gint max1, gint min2,
|
|
gint max2)
|
|
{
|
|
GValue v1 = { 0, };
|
|
GValue v2 = { 0, };
|
|
GValue *pv1, *pv2; /* yeah, hungarian! */
|
|
|
|
if (min1 <= max1 && min2 <= max2) {
|
|
pv1 = &v1;
|
|
pv2 = &v2;
|
|
} else if (min1 <= max1) {
|
|
pv1 = dest;
|
|
pv2 = NULL;
|
|
} else if (min2 <= max2) {
|
|
pv1 = NULL;
|
|
pv2 = dest;
|
|
} else {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!dest)
|
|
return TRUE;
|
|
|
|
if (min1 < max1) {
|
|
g_value_init (pv1, GST_TYPE_INT_RANGE);
|
|
gst_value_set_int_range (pv1, min1, max1);
|
|
} else if (min1 == max1) {
|
|
g_value_init (pv1, G_TYPE_INT);
|
|
g_value_set_int (pv1, min1);
|
|
}
|
|
if (min2 < max2) {
|
|
g_value_init (pv2, GST_TYPE_INT_RANGE);
|
|
gst_value_set_int_range (pv2, min2, max2);
|
|
} else if (min2 == max2) {
|
|
g_value_init (pv2, G_TYPE_INT);
|
|
g_value_set_int (pv2, min2);
|
|
}
|
|
|
|
if (min1 <= max1 && min2 <= max2) {
|
|
gst_value_list_concat (dest, pv1, pv2);
|
|
g_value_unset (pv1);
|
|
g_value_unset (pv2);
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_subtract_int_range_int (GValue * dest, const GValue * minuend,
|
|
const GValue * subtrahend)
|
|
{
|
|
gint min = gst_value_get_int_range_min (minuend);
|
|
gint max = gst_value_get_int_range_max (minuend);
|
|
gint val = g_value_get_int (subtrahend);
|
|
|
|
g_return_val_if_fail (min < max, FALSE);
|
|
|
|
/* value is outside of the range, return range unchanged */
|
|
if (val < min || val > max) {
|
|
if (dest)
|
|
gst_value_init_and_copy (dest, minuend);
|
|
return TRUE;
|
|
} else {
|
|
/* max must be MAXINT too as val <= max */
|
|
if (val == G_MAXINT) {
|
|
max--;
|
|
val--;
|
|
}
|
|
/* min must be MININT too as val >= max */
|
|
if (val == G_MININT) {
|
|
min++;
|
|
val++;
|
|
}
|
|
if (dest)
|
|
gst_value_create_new_range (dest, min, val - 1, val + 1, max);
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_subtract_int_range_int_range (GValue * dest, const GValue * minuend,
|
|
const GValue * subtrahend)
|
|
{
|
|
gint min1 = gst_value_get_int_range_min (minuend);
|
|
gint max1 = gst_value_get_int_range_max (minuend);
|
|
gint min2 = gst_value_get_int_range_min (subtrahend);
|
|
gint max2 = gst_value_get_int_range_max (subtrahend);
|
|
|
|
if (max2 == G_MAXINT && min2 == G_MININT) {
|
|
return FALSE;
|
|
} else if (max2 == G_MAXINT) {
|
|
return gst_value_create_new_range (dest, min1, MIN (min2 - 1, max1), 1, 0);
|
|
} else if (min2 == G_MININT) {
|
|
return gst_value_create_new_range (dest, MAX (max2 + 1, min1), max1, 1, 0);
|
|
} else {
|
|
return gst_value_create_new_range (dest, min1, MIN (min2 - 1, max1),
|
|
MAX (max2 + 1, min1), max1);
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_subtract_int64_int64_range (GValue * dest, const GValue * minuend,
|
|
const GValue * subtrahend)
|
|
{
|
|
gint64 min = gst_value_get_int64_range_min (subtrahend);
|
|
gint64 max = gst_value_get_int64_range_max (subtrahend);
|
|
gint64 val = g_value_get_int64 (minuend);
|
|
|
|
/* subtracting a range from an int64 only works if the int64 is not in the
|
|
* range */
|
|
if (val < min || val > max) {
|
|
/* and the result is the int64 */
|
|
if (dest)
|
|
gst_value_init_and_copy (dest, minuend);
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
/* creates a new int64 range based on input values.
|
|
*/
|
|
static gboolean
|
|
gst_value_create_new_int64_range (GValue * dest, gint64 min1, gint64 max1,
|
|
gint64 min2, gint64 max2)
|
|
{
|
|
GValue v1 = { 0, };
|
|
GValue v2 = { 0, };
|
|
GValue *pv1, *pv2; /* yeah, hungarian! */
|
|
|
|
if (min1 <= max1 && min2 <= max2) {
|
|
pv1 = &v1;
|
|
pv2 = &v2;
|
|
} else if (min1 <= max1) {
|
|
pv1 = dest;
|
|
pv2 = NULL;
|
|
} else if (min2 <= max2) {
|
|
pv1 = NULL;
|
|
pv2 = dest;
|
|
} else {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!dest)
|
|
return TRUE;
|
|
|
|
if (min1 < max1) {
|
|
g_value_init (pv1, GST_TYPE_INT64_RANGE);
|
|
gst_value_set_int64_range (pv1, min1, max1);
|
|
} else if (min1 == max1) {
|
|
g_value_init (pv1, G_TYPE_INT64);
|
|
g_value_set_int64 (pv1, min1);
|
|
}
|
|
if (min2 < max2) {
|
|
g_value_init (pv2, GST_TYPE_INT64_RANGE);
|
|
gst_value_set_int64_range (pv2, min2, max2);
|
|
} else if (min2 == max2) {
|
|
g_value_init (pv2, G_TYPE_INT64);
|
|
g_value_set_int64 (pv2, min2);
|
|
}
|
|
|
|
if (min1 <= max1 && min2 <= max2) {
|
|
gst_value_list_concat (dest, pv1, pv2);
|
|
g_value_unset (pv1);
|
|
g_value_unset (pv2);
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_subtract_int64_range_int64 (GValue * dest, const GValue * minuend,
|
|
const GValue * subtrahend)
|
|
{
|
|
gint64 min = gst_value_get_int64_range_min (minuend);
|
|
gint64 max = gst_value_get_int64_range_max (minuend);
|
|
gint64 val = g_value_get_int64 (subtrahend);
|
|
|
|
g_return_val_if_fail (min < max, FALSE);
|
|
|
|
/* value is outside of the range, return range unchanged */
|
|
if (val < min || val > max) {
|
|
if (dest)
|
|
gst_value_init_and_copy (dest, minuend);
|
|
return TRUE;
|
|
} else {
|
|
/* max must be MAXINT64 too as val <= max */
|
|
if (val == G_MAXINT64) {
|
|
max--;
|
|
val--;
|
|
}
|
|
/* min must be MININT64 too as val >= max */
|
|
if (val == G_MININT64) {
|
|
min++;
|
|
val++;
|
|
}
|
|
if (dest)
|
|
gst_value_create_new_int64_range (dest, min, val - 1, val + 1, max);
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_subtract_int64_range_int64_range (GValue * dest,
|
|
const GValue * minuend, const GValue * subtrahend)
|
|
{
|
|
gint64 min1 = gst_value_get_int64_range_min (minuend);
|
|
gint64 max1 = gst_value_get_int64_range_max (minuend);
|
|
gint64 min2 = gst_value_get_int64_range_min (subtrahend);
|
|
gint64 max2 = gst_value_get_int64_range_max (subtrahend);
|
|
|
|
if (max2 == G_MAXINT64 && min2 == G_MININT64) {
|
|
return FALSE;
|
|
} else if (max2 == G_MAXINT64) {
|
|
return gst_value_create_new_int64_range (dest, min1, MIN (min2 - 1, max1),
|
|
1, 0);
|
|
} else if (min2 == G_MININT64) {
|
|
return gst_value_create_new_int64_range (dest, MAX (max2 + 1, min1), max1,
|
|
1, 0);
|
|
} else {
|
|
return gst_value_create_new_int64_range (dest, min1, MIN (min2 - 1, max1),
|
|
MAX (max2 + 1, min1), max1);
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_subtract_double_double_range (GValue * dest, const GValue * minuend,
|
|
const GValue * subtrahend)
|
|
{
|
|
gdouble min = gst_value_get_double_range_min (subtrahend);
|
|
gdouble max = gst_value_get_double_range_max (subtrahend);
|
|
gdouble val = g_value_get_double (minuend);
|
|
|
|
if (val < min || val > max) {
|
|
if (dest)
|
|
gst_value_init_and_copy (dest, minuend);
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_subtract_double_range_double (GValue * dest, const GValue * minuend,
|
|
const GValue * subtrahend)
|
|
{
|
|
/* since we don't have open ranges, we cannot create a hole in
|
|
* a double range. We return the original range */
|
|
if (dest)
|
|
gst_value_init_and_copy (dest, minuend);
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_subtract_double_range_double_range (GValue * dest,
|
|
const GValue * minuend, const GValue * subtrahend)
|
|
{
|
|
/* since we don't have open ranges, we have to approximate */
|
|
/* done like with ints */
|
|
gdouble min1 = gst_value_get_double_range_min (minuend);
|
|
gdouble max2 = gst_value_get_double_range_max (minuend);
|
|
gdouble max1 = MIN (gst_value_get_double_range_min (subtrahend), max2);
|
|
gdouble min2 = MAX (gst_value_get_double_range_max (subtrahend), min1);
|
|
GValue v1 = { 0, };
|
|
GValue v2 = { 0, };
|
|
GValue *pv1, *pv2; /* yeah, hungarian! */
|
|
|
|
if (min1 < max1 && min2 < max2) {
|
|
pv1 = &v1;
|
|
pv2 = &v2;
|
|
} else if (min1 < max1) {
|
|
pv1 = dest;
|
|
pv2 = NULL;
|
|
} else if (min2 < max2) {
|
|
pv1 = NULL;
|
|
pv2 = dest;
|
|
} else {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!dest)
|
|
return TRUE;
|
|
|
|
if (min1 < max1) {
|
|
g_value_init (pv1, GST_TYPE_DOUBLE_RANGE);
|
|
gst_value_set_double_range (pv1, min1, max1);
|
|
}
|
|
if (min2 < max2) {
|
|
g_value_init (pv2, GST_TYPE_DOUBLE_RANGE);
|
|
gst_value_set_double_range (pv2, min2, max2);
|
|
}
|
|
|
|
if (min1 < max1 && min2 < max2) {
|
|
gst_value_list_concat (dest, pv1, pv2);
|
|
g_value_unset (pv1);
|
|
g_value_unset (pv2);
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_subtract_from_list (GValue * dest, const GValue * minuend,
|
|
const GValue * subtrahend)
|
|
{
|
|
guint i, size;
|
|
GValue subtraction = { 0, };
|
|
gboolean ret = FALSE;
|
|
GType ltype;
|
|
|
|
ltype = gst_value_list_get_type ();
|
|
|
|
size = VALUE_LIST_SIZE (minuend);
|
|
for (i = 0; i < size; i++) {
|
|
const GValue *cur = VALUE_LIST_GET_VALUE (minuend, i);
|
|
|
|
/* quicker version when we can discard the result */
|
|
if (!dest) {
|
|
if (gst_value_subtract (NULL, cur, subtrahend)) {
|
|
ret = TRUE;
|
|
break;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (gst_value_subtract (&subtraction, cur, subtrahend)) {
|
|
if (!ret) {
|
|
gst_value_init_and_copy (dest, &subtraction);
|
|
ret = TRUE;
|
|
} else if (G_VALUE_HOLDS (dest, ltype)
|
|
&& !G_VALUE_HOLDS (&subtraction, ltype)) {
|
|
gst_value_list_append_value (dest, &subtraction);
|
|
} else {
|
|
GValue temp = { 0, };
|
|
|
|
gst_value_init_and_copy (&temp, dest);
|
|
g_value_unset (dest);
|
|
gst_value_list_concat (dest, &temp, &subtraction);
|
|
g_value_unset (&temp);
|
|
}
|
|
g_value_unset (&subtraction);
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_subtract_list (GValue * dest, const GValue * minuend,
|
|
const GValue * subtrahend)
|
|
{
|
|
guint i, size;
|
|
GValue data[2] = { {0,}, {0,} };
|
|
GValue *subtraction = &data[0], *result = &data[1];
|
|
|
|
gst_value_init_and_copy (result, minuend);
|
|
size = VALUE_LIST_SIZE (subtrahend);
|
|
for (i = 0; i < size; i++) {
|
|
const GValue *cur = VALUE_LIST_GET_VALUE (subtrahend, i);
|
|
|
|
if (gst_value_subtract (subtraction, result, cur)) {
|
|
GValue *temp = result;
|
|
|
|
result = subtraction;
|
|
subtraction = temp;
|
|
g_value_unset (subtraction);
|
|
} else {
|
|
g_value_unset (result);
|
|
return FALSE;
|
|
}
|
|
}
|
|
if (dest)
|
|
gst_value_init_and_copy (dest, result);
|
|
g_value_unset (result);
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_subtract_fraction_fraction_range (GValue * dest,
|
|
const GValue * minuend, const GValue * subtrahend)
|
|
{
|
|
const GValue *min = gst_value_get_fraction_range_min (subtrahend);
|
|
const GValue *max = gst_value_get_fraction_range_max (subtrahend);
|
|
GstValueCompareFunc compare;
|
|
|
|
if ((compare = gst_value_get_compare_func (minuend))) {
|
|
/* subtracting a range from an fraction only works if the fraction
|
|
* is not in the range */
|
|
if (gst_value_compare_with_func (minuend, min, compare) ==
|
|
GST_VALUE_LESS_THAN ||
|
|
gst_value_compare_with_func (minuend, max, compare) ==
|
|
GST_VALUE_GREATER_THAN) {
|
|
/* and the result is the value */
|
|
if (dest)
|
|
gst_value_init_and_copy (dest, minuend);
|
|
return TRUE;
|
|
}
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_subtract_fraction_range_fraction (GValue * dest,
|
|
const GValue * minuend, const GValue * subtrahend)
|
|
{
|
|
/* since we don't have open ranges, we cannot create a hole in
|
|
* a range. We return the original range */
|
|
if (dest)
|
|
gst_value_init_and_copy (dest, minuend);
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_subtract_fraction_range_fraction_range (GValue * dest,
|
|
const GValue * minuend, const GValue * subtrahend)
|
|
{
|
|
/* since we don't have open ranges, we have to approximate */
|
|
/* done like with ints and doubles. Creates a list of 2 fraction ranges */
|
|
const GValue *min1 = gst_value_get_fraction_range_min (minuend);
|
|
const GValue *max2 = gst_value_get_fraction_range_max (minuend);
|
|
const GValue *max1 = gst_value_get_fraction_range_min (subtrahend);
|
|
const GValue *min2 = gst_value_get_fraction_range_max (subtrahend);
|
|
gint cmp1, cmp2;
|
|
GValue v1 = { 0, };
|
|
GValue v2 = { 0, };
|
|
GValue *pv1, *pv2; /* yeah, hungarian! */
|
|
GstValueCompareFunc compare;
|
|
|
|
g_return_val_if_fail (min1 != NULL && max1 != NULL, FALSE);
|
|
g_return_val_if_fail (min2 != NULL && max2 != NULL, FALSE);
|
|
|
|
compare = gst_value_get_compare_func (min1);
|
|
g_return_val_if_fail (compare, FALSE);
|
|
|
|
cmp1 = gst_value_compare_with_func (max2, max1, compare);
|
|
g_return_val_if_fail (cmp1 != GST_VALUE_UNORDERED, FALSE);
|
|
if (cmp1 == GST_VALUE_LESS_THAN)
|
|
max1 = max2;
|
|
cmp1 = gst_value_compare_with_func (min1, min2, compare);
|
|
g_return_val_if_fail (cmp1 != GST_VALUE_UNORDERED, FALSE);
|
|
if (cmp1 == GST_VALUE_GREATER_THAN)
|
|
min2 = min1;
|
|
|
|
cmp1 = gst_value_compare_with_func (min1, max1, compare);
|
|
cmp2 = gst_value_compare_with_func (min2, max2, compare);
|
|
|
|
if (cmp1 == GST_VALUE_LESS_THAN && cmp2 == GST_VALUE_LESS_THAN) {
|
|
pv1 = &v1;
|
|
pv2 = &v2;
|
|
} else if (cmp1 == GST_VALUE_LESS_THAN) {
|
|
pv1 = dest;
|
|
pv2 = NULL;
|
|
} else if (cmp2 == GST_VALUE_LESS_THAN) {
|
|
pv1 = NULL;
|
|
pv2 = dest;
|
|
} else {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!dest)
|
|
return TRUE;
|
|
|
|
if (cmp1 == GST_VALUE_LESS_THAN) {
|
|
g_value_init (pv1, GST_TYPE_FRACTION_RANGE);
|
|
gst_value_set_fraction_range (pv1, min1, max1);
|
|
}
|
|
if (cmp2 == GST_VALUE_LESS_THAN) {
|
|
g_value_init (pv2, GST_TYPE_FRACTION_RANGE);
|
|
gst_value_set_fraction_range (pv2, min2, max2);
|
|
}
|
|
|
|
if (cmp1 == GST_VALUE_LESS_THAN && cmp2 == GST_VALUE_LESS_THAN) {
|
|
gst_value_list_concat (dest, pv1, pv2);
|
|
g_value_unset (pv1);
|
|
g_value_unset (pv2);
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/**************
|
|
* comparison *
|
|
**************/
|
|
|
|
/*
|
|
* gst_value_get_compare_func:
|
|
* @value1: a value to get the compare function for
|
|
*
|
|
* Determines the compare function to be used with values of the same type as
|
|
* @value1. The function can be given to gst_value_compare_with_func().
|
|
*
|
|
* Returns: A #GstValueCompareFunc value
|
|
*/
|
|
static GstValueCompareFunc
|
|
gst_value_get_compare_func (const GValue * value1)
|
|
{
|
|
GstValueTable *table, *best = NULL;
|
|
guint i;
|
|
GType type1;
|
|
|
|
type1 = G_VALUE_TYPE (value1);
|
|
|
|
/* this is a fast check */
|
|
best = gst_value_hash_lookup_type (type1);
|
|
|
|
/* slower checks */
|
|
if (G_UNLIKELY (!best || !best->compare)) {
|
|
guint len = gst_value_table->len;
|
|
|
|
best = NULL;
|
|
for (i = 0; i < len; i++) {
|
|
table = &g_array_index (gst_value_table, GstValueTable, i);
|
|
if (table->compare && g_type_is_a (type1, table->type)) {
|
|
if (!best || g_type_is_a (table->type, best->type))
|
|
best = table;
|
|
}
|
|
}
|
|
}
|
|
if (G_LIKELY (best))
|
|
return best->compare;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* gst_value_can_compare:
|
|
* @value1: a value to compare
|
|
* @value2: another value to compare
|
|
*
|
|
* Determines if @value1 and @value2 can be compared.
|
|
*
|
|
* Returns: TRUE if the values can be compared
|
|
*/
|
|
gboolean
|
|
gst_value_can_compare (const GValue * value1, const GValue * value2)
|
|
{
|
|
g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
|
|
g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
|
|
|
|
if (G_VALUE_TYPE (value1) != G_VALUE_TYPE (value2))
|
|
return FALSE;
|
|
|
|
return gst_value_get_compare_func (value1) != NULL;
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_list_equals_range (const GValue * list, const GValue * value)
|
|
{
|
|
const GValue *first;
|
|
guint list_size, n;
|
|
|
|
g_return_val_if_fail (G_IS_VALUE (list), FALSE);
|
|
g_return_val_if_fail (G_IS_VALUE (value), FALSE);
|
|
g_return_val_if_fail (GST_VALUE_HOLDS_LIST (list), FALSE);
|
|
|
|
/* TODO: compare against an empty list ? No type though... */
|
|
list_size = VALUE_LIST_SIZE (list);
|
|
if (list_size == 0)
|
|
return FALSE;
|
|
|
|
/* compare the basic types - they have to match */
|
|
first = VALUE_LIST_GET_VALUE (list, 0);
|
|
#define CHECK_TYPES(type,prefix) \
|
|
(prefix##_VALUE_HOLDS_##type(first) && GST_VALUE_HOLDS_##type##_RANGE (value))
|
|
if (CHECK_TYPES (INT, G)) {
|
|
const gint rmin = gst_value_get_int_range_min (value);
|
|
const gint rmax = gst_value_get_int_range_max (value);
|
|
/* note: this will overflow for min 0 and max INT_MAX, but this
|
|
would only be equal to a list of INT_MAX elements, which seems
|
|
very unlikely */
|
|
if (list_size != rmax - rmin + 1)
|
|
return FALSE;
|
|
for (n = 0; n < list_size; ++n) {
|
|
gint v = g_value_get_int (VALUE_LIST_GET_VALUE (list, n));
|
|
if (v < rmin || v > rmax) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
return TRUE;
|
|
} else if (CHECK_TYPES (INT64, G)) {
|
|
const gint64 rmin = gst_value_get_int64_range_min (value);
|
|
const gint64 rmax = gst_value_get_int64_range_max (value);
|
|
GST_DEBUG ("List/range of int64s");
|
|
if (list_size != rmax - rmin + 1)
|
|
return FALSE;
|
|
for (n = 0; n < list_size; ++n) {
|
|
gint64 v = g_value_get_int64 (VALUE_LIST_GET_VALUE (list, n));
|
|
if (v < rmin || v > rmax)
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
#undef CHECK_TYPES
|
|
|
|
/* other combinations don't make sense for equality */
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
* gst_value_compare:
|
|
* @value1: a value to compare
|
|
* @value2: another value to compare
|
|
*
|
|
* Compares @value1 and @value2. If @value1 and @value2 cannot be
|
|
* compared, the function returns GST_VALUE_UNORDERED. Otherwise,
|
|
* if @value1 is greater than @value2, GST_VALUE_GREATER_THAN is returned.
|
|
* If @value1 is less than @value2, GST_VALUE_LESS_THAN is returned.
|
|
* If the values are equal, GST_VALUE_EQUAL is returned.
|
|
*
|
|
* Returns: comparison result
|
|
*/
|
|
gint
|
|
gst_value_compare (const GValue * value1, const GValue * value2)
|
|
{
|
|
GstValueCompareFunc compare;
|
|
GType ltype;
|
|
|
|
g_return_val_if_fail (G_IS_VALUE (value1), GST_VALUE_LESS_THAN);
|
|
g_return_val_if_fail (G_IS_VALUE (value2), GST_VALUE_GREATER_THAN);
|
|
|
|
/* Special cases: lists and scalar values ("{ 1 }" and "1" are equal),
|
|
as well as lists and ranges ("{ 1, 2 }" and "[ 1, 2 ]" are equal) */
|
|
ltype = gst_value_list_get_type ();
|
|
if (G_VALUE_HOLDS (value1, ltype) && !G_VALUE_HOLDS (value2, ltype)) {
|
|
|
|
if (gst_value_list_equals_range (value1, value2)) {
|
|
return GST_VALUE_EQUAL;
|
|
} else if (gst_value_list_get_size (value1) == 1) {
|
|
const GValue *elt;
|
|
|
|
elt = gst_value_list_get_value (value1, 0);
|
|
return gst_value_compare (elt, value2);
|
|
}
|
|
} else if (G_VALUE_HOLDS (value2, ltype) && !G_VALUE_HOLDS (value1, ltype)) {
|
|
if (gst_value_list_equals_range (value2, value1)) {
|
|
return GST_VALUE_EQUAL;
|
|
} else if (gst_value_list_get_size (value2) == 1) {
|
|
const GValue *elt;
|
|
|
|
elt = gst_value_list_get_value (value2, 0);
|
|
return gst_value_compare (elt, value1);
|
|
}
|
|
}
|
|
|
|
if (G_VALUE_TYPE (value1) != G_VALUE_TYPE (value2))
|
|
return GST_VALUE_UNORDERED;
|
|
|
|
compare = gst_value_get_compare_func (value1);
|
|
if (compare) {
|
|
return compare (value1, value2);
|
|
}
|
|
|
|
g_critical ("unable to compare values of type %s\n",
|
|
g_type_name (G_VALUE_TYPE (value1)));
|
|
return GST_VALUE_UNORDERED;
|
|
}
|
|
|
|
/*
|
|
* gst_value_compare_with_func:
|
|
* @value1: a value to compare
|
|
* @value2: another value to compare
|
|
* @compare: compare function
|
|
*
|
|
* Compares @value1 and @value2 using the @compare function. Works like
|
|
* gst_value_compare() but allows to save time determining the compare function
|
|
* a multiple times.
|
|
*
|
|
* Returns: comparison result
|
|
*/
|
|
static gint
|
|
gst_value_compare_with_func (const GValue * value1, const GValue * value2,
|
|
GstValueCompareFunc compare)
|
|
{
|
|
g_assert (compare);
|
|
|
|
if (G_VALUE_TYPE (value1) != G_VALUE_TYPE (value2))
|
|
return GST_VALUE_UNORDERED;
|
|
|
|
return compare (value1, value2);
|
|
}
|
|
|
|
/* union */
|
|
|
|
/**
|
|
* gst_value_can_union:
|
|
* @value1: a value to union
|
|
* @value2: another value to union
|
|
*
|
|
* Determines if @value1 and @value2 can be non-trivially unioned.
|
|
* Any two values can be trivially unioned by adding both of them
|
|
* to a GstValueList. However, certain types have the possibility
|
|
* to be unioned in a simpler way. For example, an integer range
|
|
* and an integer can be unioned if the integer is a subset of the
|
|
* integer range. If there is the possibility that two values can
|
|
* be unioned, this function returns TRUE.
|
|
*
|
|
* Returns: TRUE if there is a function allowing the two values to
|
|
* be unioned.
|
|
*/
|
|
gboolean
|
|
gst_value_can_union (const GValue * value1, const GValue * value2)
|
|
{
|
|
GstValueUnionInfo *union_info;
|
|
guint i, len;
|
|
|
|
g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
|
|
g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
|
|
|
|
len = gst_value_union_funcs->len;
|
|
|
|
for (i = 0; i < len; i++) {
|
|
union_info = &g_array_index (gst_value_union_funcs, GstValueUnionInfo, i);
|
|
if (union_info->type1 == G_VALUE_TYPE (value1) &&
|
|
union_info->type2 == G_VALUE_TYPE (value2))
|
|
return TRUE;
|
|
if (union_info->type1 == G_VALUE_TYPE (value2) &&
|
|
union_info->type2 == G_VALUE_TYPE (value1))
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
* gst_value_union:
|
|
* @dest: (out caller-allocates): the destination value
|
|
* @value1: a value to union
|
|
* @value2: another value to union
|
|
*
|
|
* Creates a GValue corresponding to the union of @value1 and @value2.
|
|
*
|
|
* Returns: always returns %TRUE
|
|
*/
|
|
/* FIXME: change return type to 'void'? */
|
|
gboolean
|
|
gst_value_union (GValue * dest, const GValue * value1, const GValue * value2)
|
|
{
|
|
GstValueUnionInfo *union_info;
|
|
guint i, len;
|
|
|
|
g_return_val_if_fail (dest != NULL, FALSE);
|
|
g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
|
|
g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
|
|
|
|
len = gst_value_union_funcs->len;
|
|
|
|
for (i = 0; i < len; i++) {
|
|
union_info = &g_array_index (gst_value_union_funcs, GstValueUnionInfo, i);
|
|
if (union_info->type1 == G_VALUE_TYPE (value1) &&
|
|
union_info->type2 == G_VALUE_TYPE (value2)) {
|
|
if (union_info->func (dest, value1, value2)) {
|
|
return TRUE;
|
|
}
|
|
}
|
|
if (union_info->type1 == G_VALUE_TYPE (value2) &&
|
|
union_info->type2 == G_VALUE_TYPE (value1)) {
|
|
if (union_info->func (dest, value2, value1)) {
|
|
return TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
gst_value_list_concat (dest, value1, value2);
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gst_value_register_union_func:
|
|
* @type1: a type to union
|
|
* @type2: another type to union
|
|
* @func: a function that implements creating a union between the two types
|
|
*
|
|
* Registers a union function that can create a union between #GValue items
|
|
* of the type @type1 and @type2.
|
|
*
|
|
* Union functions should be registered at startup before any pipelines are
|
|
* started, as gst_value_register_union_func() is not thread-safe and cannot
|
|
* be used at the same time as gst_value_union() or gst_value_can_union().
|
|
*/
|
|
void
|
|
gst_value_register_union_func (GType type1, GType type2, GstValueUnionFunc func)
|
|
{
|
|
GstValueUnionInfo union_info;
|
|
|
|
union_info.type1 = type1;
|
|
union_info.type2 = type2;
|
|
union_info.func = func;
|
|
|
|
g_array_append_val (gst_value_union_funcs, union_info);
|
|
}
|
|
|
|
/* intersection */
|
|
|
|
/**
|
|
* gst_value_can_intersect:
|
|
* @value1: a value to intersect
|
|
* @value2: another value to intersect
|
|
*
|
|
* Determines if intersecting two values will produce a valid result.
|
|
* Two values will produce a valid intersection if they have the same
|
|
* type, or if there is a method (registered by
|
|
* gst_value_register_intersect_func()) to calculate the intersection.
|
|
*
|
|
* Returns: TRUE if the values can intersect
|
|
*/
|
|
gboolean
|
|
gst_value_can_intersect (const GValue * value1, const GValue * value2)
|
|
{
|
|
GstValueIntersectInfo *intersect_info;
|
|
guint i, len;
|
|
GType ltype, type1, type2;
|
|
|
|
g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
|
|
g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
|
|
|
|
ltype = gst_value_list_get_type ();
|
|
|
|
/* special cases */
|
|
if (G_VALUE_HOLDS (value1, ltype) || G_VALUE_HOLDS (value2, ltype))
|
|
return TRUE;
|
|
|
|
type1 = G_VALUE_TYPE (value1);
|
|
type2 = G_VALUE_TYPE (value2);
|
|
|
|
/* practically all GstValue types have a compare function (_can_compare=TRUE)
|
|
* GstStructure and GstCaps have npot, but are intersectable */
|
|
if (type1 == type2)
|
|
return TRUE;
|
|
|
|
/* check registered intersect functions */
|
|
len = gst_value_intersect_funcs->len;
|
|
for (i = 0; i < len; i++) {
|
|
intersect_info = &g_array_index (gst_value_intersect_funcs,
|
|
GstValueIntersectInfo, i);
|
|
if ((intersect_info->type1 == type1 && intersect_info->type2 == type2) ||
|
|
(intersect_info->type1 == type2 && intersect_info->type2 == type1))
|
|
return TRUE;
|
|
}
|
|
|
|
return gst_value_can_compare (value1, value2);
|
|
}
|
|
|
|
/**
|
|
* gst_value_intersect:
|
|
* @dest: (out caller-allocates): a uninitialized #GValue that will hold the calculated
|
|
* intersection value. May be NULL if the resulting set if not needed.
|
|
* @value1: a value to intersect
|
|
* @value2: another value to intersect
|
|
*
|
|
* Calculates the intersection of two values. If the values have
|
|
* a non-empty intersection, the value representing the intersection
|
|
* is placed in @dest, unless NULL. If the intersection is non-empty,
|
|
* @dest is not modified.
|
|
*
|
|
* Returns: TRUE if the intersection is non-empty
|
|
*/
|
|
gboolean
|
|
gst_value_intersect (GValue * dest, const GValue * value1,
|
|
const GValue * value2)
|
|
{
|
|
GstValueIntersectInfo *intersect_info;
|
|
guint i, len;
|
|
GType ltype, type1, type2;
|
|
|
|
g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
|
|
g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
|
|
|
|
ltype = gst_value_list_get_type ();
|
|
|
|
/* special cases first */
|
|
if (G_VALUE_HOLDS (value1, ltype))
|
|
return gst_value_intersect_list (dest, value1, value2);
|
|
if (G_VALUE_HOLDS (value2, ltype))
|
|
return gst_value_intersect_list (dest, value2, value1);
|
|
|
|
if (gst_value_compare (value1, value2) == GST_VALUE_EQUAL) {
|
|
if (dest)
|
|
gst_value_init_and_copy (dest, value1);
|
|
return TRUE;
|
|
}
|
|
|
|
type1 = G_VALUE_TYPE (value1);
|
|
type2 = G_VALUE_TYPE (value2);
|
|
|
|
len = gst_value_intersect_funcs->len;
|
|
for (i = 0; i < len; i++) {
|
|
intersect_info = &g_array_index (gst_value_intersect_funcs,
|
|
GstValueIntersectInfo, i);
|
|
if (intersect_info->type1 == type1 && intersect_info->type2 == type2) {
|
|
return intersect_info->func (dest, value1, value2);
|
|
}
|
|
if (intersect_info->type1 == type2 && intersect_info->type2 == type1) {
|
|
return intersect_info->func (dest, value2, value1);
|
|
}
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* gst_value_register_intersect_func:
|
|
* @type1: the first type to intersect
|
|
* @type2: the second type to intersect
|
|
* @func: the intersection function
|
|
*
|
|
* Registers a function that is called to calculate the intersection
|
|
* of the values having the types @type1 and @type2.
|
|
*
|
|
* Intersect functions should be registered at startup before any pipelines are
|
|
* started, as gst_value_register_intersect_func() is not thread-safe and
|
|
* cannot be used at the same time as gst_value_intersect() or
|
|
* gst_value_can_intersect().
|
|
*/
|
|
void
|
|
gst_value_register_intersect_func (GType type1, GType type2,
|
|
GstValueIntersectFunc func)
|
|
{
|
|
GstValueIntersectInfo intersect_info;
|
|
|
|
intersect_info.type1 = type1;
|
|
intersect_info.type2 = type2;
|
|
intersect_info.func = func;
|
|
|
|
g_array_append_val (gst_value_intersect_funcs, intersect_info);
|
|
}
|
|
|
|
|
|
/* subtraction */
|
|
|
|
/**
|
|
* gst_value_subtract:
|
|
* @dest: (out caller-allocates): the destination value for the result if the
|
|
* subtraction is not empty. May be NULL, in which case the resulting set
|
|
* will not be computed, which can give a fair speedup.
|
|
* @minuend: the value to subtract from
|
|
* @subtrahend: the value to subtract
|
|
*
|
|
* Subtracts @subtrahend from @minuend and stores the result in @dest.
|
|
* Note that this means subtraction as in sets, not as in mathematics.
|
|
*
|
|
* Returns: %TRUE if the subtraction is not empty
|
|
*/
|
|
gboolean
|
|
gst_value_subtract (GValue * dest, const GValue * minuend,
|
|
const GValue * subtrahend)
|
|
{
|
|
GstValueSubtractInfo *info;
|
|
guint i, len;
|
|
GType ltype, mtype, stype;
|
|
|
|
g_return_val_if_fail (G_IS_VALUE (minuend), FALSE);
|
|
g_return_val_if_fail (G_IS_VALUE (subtrahend), FALSE);
|
|
|
|
ltype = gst_value_list_get_type ();
|
|
|
|
/* special cases first */
|
|
if (G_VALUE_HOLDS (minuend, ltype))
|
|
return gst_value_subtract_from_list (dest, minuend, subtrahend);
|
|
if (G_VALUE_HOLDS (subtrahend, ltype))
|
|
return gst_value_subtract_list (dest, minuend, subtrahend);
|
|
|
|
mtype = G_VALUE_TYPE (minuend);
|
|
stype = G_VALUE_TYPE (subtrahend);
|
|
|
|
len = gst_value_subtract_funcs->len;
|
|
for (i = 0; i < len; i++) {
|
|
info = &g_array_index (gst_value_subtract_funcs, GstValueSubtractInfo, i);
|
|
if (info->minuend == mtype && info->subtrahend == stype) {
|
|
return info->func (dest, minuend, subtrahend);
|
|
}
|
|
}
|
|
|
|
if (gst_value_compare (minuend, subtrahend) != GST_VALUE_EQUAL) {
|
|
if (dest)
|
|
gst_value_init_and_copy (dest, minuend);
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
#if 0
|
|
gboolean
|
|
gst_value_subtract (GValue * dest, const GValue * minuend,
|
|
const GValue * subtrahend)
|
|
{
|
|
gboolean ret = gst_value_subtract2 (dest, minuend, subtrahend);
|
|
|
|
g_printerr ("\"%s\" - \"%s\" = \"%s\"\n", gst_value_serialize (minuend),
|
|
gst_value_serialize (subtrahend),
|
|
ret ? gst_value_serialize (dest) : "---");
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* gst_value_can_subtract:
|
|
* @minuend: the value to subtract from
|
|
* @subtrahend: the value to subtract
|
|
*
|
|
* Checks if it's possible to subtract @subtrahend from @minuend.
|
|
*
|
|
* Returns: TRUE if a subtraction is possible
|
|
*/
|
|
gboolean
|
|
gst_value_can_subtract (const GValue * minuend, const GValue * subtrahend)
|
|
{
|
|
GstValueSubtractInfo *info;
|
|
guint i, len;
|
|
GType ltype, mtype, stype;
|
|
|
|
g_return_val_if_fail (G_IS_VALUE (minuend), FALSE);
|
|
g_return_val_if_fail (G_IS_VALUE (subtrahend), FALSE);
|
|
|
|
ltype = gst_value_list_get_type ();
|
|
|
|
/* special cases */
|
|
if (G_VALUE_HOLDS (minuend, ltype) || G_VALUE_HOLDS (subtrahend, ltype))
|
|
return TRUE;
|
|
|
|
mtype = G_VALUE_TYPE (minuend);
|
|
stype = G_VALUE_TYPE (subtrahend);
|
|
|
|
len = gst_value_subtract_funcs->len;
|
|
for (i = 0; i < len; i++) {
|
|
info = &g_array_index (gst_value_subtract_funcs, GstValueSubtractInfo, i);
|
|
if (info->minuend == mtype && info->subtrahend == stype)
|
|
return TRUE;
|
|
}
|
|
|
|
return gst_value_can_compare (minuend, subtrahend);
|
|
}
|
|
|
|
/**
|
|
* gst_value_register_subtract_func:
|
|
* @minuend_type: type of the minuend
|
|
* @subtrahend_type: type of the subtrahend
|
|
* @func: function to use
|
|
*
|
|
* Registers @func as a function capable of subtracting the values of
|
|
* @subtrahend_type from values of @minuend_type.
|
|
*
|
|
* Subtract functions should be registered at startup before any pipelines are
|
|
* started, as gst_value_register_subtract_func() is not thread-safe and
|
|
* cannot be used at the same time as gst_value_subtract().
|
|
*/
|
|
void
|
|
gst_value_register_subtract_func (GType minuend_type, GType subtrahend_type,
|
|
GstValueSubtractFunc func)
|
|
{
|
|
GstValueSubtractInfo info;
|
|
|
|
/* one type must be unfixed, other subtractions can be done as comparisons */
|
|
g_return_if_fail (!gst_type_is_fixed (minuend_type)
|
|
|| !gst_type_is_fixed (subtrahend_type));
|
|
|
|
info.minuend = minuend_type;
|
|
info.subtrahend = subtrahend_type;
|
|
info.func = func;
|
|
|
|
g_array_append_val (gst_value_subtract_funcs, info);
|
|
}
|
|
|
|
/**
|
|
* gst_value_register:
|
|
* @table: structure containing functions to register
|
|
*
|
|
* Registers functions to perform calculations on #GValue items of a given
|
|
* type. Each type can only be added once.
|
|
*/
|
|
void
|
|
gst_value_register (const GstValueTable * table)
|
|
{
|
|
GstValueTable *found;
|
|
|
|
g_return_if_fail (table != NULL);
|
|
|
|
g_array_append_val (gst_value_table, *table);
|
|
|
|
found = gst_value_hash_lookup_type (table->type);
|
|
if (found)
|
|
g_warning ("adding type %s multiple times", g_type_name (table->type));
|
|
|
|
/* FIXME: we're not really doing the const justice, we assume the table is
|
|
* static */
|
|
gst_value_hash_add_type (table->type, table);
|
|
}
|
|
|
|
/**
|
|
* gst_value_init_and_copy:
|
|
* @dest: (out caller-allocates): the target value
|
|
* @src: the source value
|
|
*
|
|
* Initialises the target value to be of the same type as source and then copies
|
|
* the contents from source to target.
|
|
*/
|
|
void
|
|
gst_value_init_and_copy (GValue * dest, const GValue * src)
|
|
{
|
|
g_return_if_fail (G_IS_VALUE (src));
|
|
g_return_if_fail (dest != NULL);
|
|
|
|
g_value_init (dest, G_VALUE_TYPE (src));
|
|
g_value_copy (src, dest);
|
|
}
|
|
|
|
/**
|
|
* gst_value_serialize:
|
|
* @value: a #GValue to serialize
|
|
*
|
|
* tries to transform the given @value into a string representation that allows
|
|
* getting back this string later on using gst_value_deserialize().
|
|
*
|
|
* Free-function: g_free
|
|
*
|
|
* Returns: (transfer full): the serialization for @value or NULL if none exists
|
|
*/
|
|
gchar *
|
|
gst_value_serialize (const GValue * value)
|
|
{
|
|
guint i, len;
|
|
GValue s_val = { 0 };
|
|
GstValueTable *table, *best;
|
|
gchar *s;
|
|
GType type;
|
|
|
|
g_return_val_if_fail (G_IS_VALUE (value), NULL);
|
|
|
|
type = G_VALUE_TYPE (value);
|
|
|
|
best = gst_value_hash_lookup_type (type);
|
|
|
|
if (G_UNLIKELY (!best || !best->serialize)) {
|
|
len = gst_value_table->len;
|
|
best = NULL;
|
|
for (i = 0; i < len; i++) {
|
|
table = &g_array_index (gst_value_table, GstValueTable, i);
|
|
if (table->serialize && g_type_is_a (type, table->type)) {
|
|
if (!best || g_type_is_a (table->type, best->type))
|
|
best = table;
|
|
}
|
|
}
|
|
}
|
|
if (G_LIKELY (best))
|
|
return best->serialize (value);
|
|
|
|
g_value_init (&s_val, G_TYPE_STRING);
|
|
if (g_value_transform (value, &s_val)) {
|
|
s = gst_string_wrap (g_value_get_string (&s_val));
|
|
} else {
|
|
s = NULL;
|
|
}
|
|
g_value_unset (&s_val);
|
|
|
|
return s;
|
|
}
|
|
|
|
/**
|
|
* gst_value_deserialize:
|
|
* @dest: (out caller-allocates): #GValue to fill with contents of
|
|
* deserialization
|
|
* @src: string to deserialize
|
|
*
|
|
* Tries to deserialize a string into the type specified by the given GValue.
|
|
* If the operation succeeds, TRUE is returned, FALSE otherwise.
|
|
*
|
|
* Returns: TRUE on success
|
|
*/
|
|
gboolean
|
|
gst_value_deserialize (GValue * dest, const gchar * src)
|
|
{
|
|
GstValueTable *table, *best;
|
|
guint i, len;
|
|
GType type;
|
|
|
|
g_return_val_if_fail (src != NULL, FALSE);
|
|
g_return_val_if_fail (G_IS_VALUE (dest), FALSE);
|
|
|
|
type = G_VALUE_TYPE (dest);
|
|
|
|
best = gst_value_hash_lookup_type (type);
|
|
if (G_UNLIKELY (!best || !best->deserialize)) {
|
|
len = gst_value_table->len;
|
|
best = NULL;
|
|
for (i = 0; i < len; i++) {
|
|
table = &g_array_index (gst_value_table, GstValueTable, i);
|
|
if (table->deserialize && g_type_is_a (type, table->type)) {
|
|
if (!best || g_type_is_a (table->type, best->type))
|
|
best = table;
|
|
}
|
|
}
|
|
}
|
|
if (G_LIKELY (best))
|
|
return best->deserialize (dest, src);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
* gst_value_is_fixed:
|
|
* @value: the #GValue to check
|
|
*
|
|
* Tests if the given GValue, if available in a GstStructure (or any other
|
|
* container) contains a "fixed" (which means: one value) or an "unfixed"
|
|
* (which means: multiple possible values, such as data lists or data
|
|
* ranges) value.
|
|
*
|
|
* Returns: true if the value is "fixed".
|
|
*/
|
|
|
|
gboolean
|
|
gst_value_is_fixed (const GValue * value)
|
|
{
|
|
GType type;
|
|
|
|
g_return_val_if_fail (G_IS_VALUE (value), FALSE);
|
|
|
|
type = G_VALUE_TYPE (value);
|
|
|
|
/* the most common types are just basic plain glib types */
|
|
if (type <= G_TYPE_MAKE_FUNDAMENTAL (G_TYPE_RESERVED_GLIB_LAST)) {
|
|
return TRUE;
|
|
}
|
|
|
|
if (type == GST_TYPE_ARRAY) {
|
|
gint size, n;
|
|
const GValue *kid;
|
|
|
|
/* check recursively */
|
|
size = gst_value_array_get_size (value);
|
|
for (n = 0; n < size; n++) {
|
|
kid = gst_value_array_get_value (value, n);
|
|
if (!gst_value_is_fixed (kid))
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
return gst_type_is_fixed (type);
|
|
}
|
|
|
|
/************
|
|
* fraction *
|
|
************/
|
|
|
|
/* helper functions */
|
|
static void
|
|
gst_value_init_fraction (GValue * value)
|
|
{
|
|
value->data[0].v_int = 0;
|
|
value->data[1].v_int = 1;
|
|
}
|
|
|
|
static void
|
|
gst_value_copy_fraction (const GValue * src_value, GValue * dest_value)
|
|
{
|
|
dest_value->data[0].v_int = src_value->data[0].v_int;
|
|
dest_value->data[1].v_int = src_value->data[1].v_int;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_collect_fraction (GValue * value, guint n_collect_values,
|
|
GTypeCValue * collect_values, guint collect_flags)
|
|
{
|
|
if (n_collect_values != 2)
|
|
return g_strdup_printf ("not enough value locations for `%s' passed",
|
|
G_VALUE_TYPE_NAME (value));
|
|
if (collect_values[1].v_int == 0)
|
|
return g_strdup_printf ("passed '0' as denominator for `%s'",
|
|
G_VALUE_TYPE_NAME (value));
|
|
if (collect_values[0].v_int < -G_MAXINT)
|
|
return
|
|
g_strdup_printf
|
|
("passed value smaller than -G_MAXINT as numerator for `%s'",
|
|
G_VALUE_TYPE_NAME (value));
|
|
if (collect_values[1].v_int < -G_MAXINT)
|
|
return
|
|
g_strdup_printf
|
|
("passed value smaller than -G_MAXINT as denominator for `%s'",
|
|
G_VALUE_TYPE_NAME (value));
|
|
|
|
gst_value_set_fraction (value,
|
|
collect_values[0].v_int, collect_values[1].v_int);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_lcopy_fraction (const GValue * value, guint n_collect_values,
|
|
GTypeCValue * collect_values, guint collect_flags)
|
|
{
|
|
gint *numerator = collect_values[0].v_pointer;
|
|
gint *denominator = collect_values[1].v_pointer;
|
|
|
|
if (!numerator)
|
|
return g_strdup_printf ("numerator for `%s' passed as NULL",
|
|
G_VALUE_TYPE_NAME (value));
|
|
if (!denominator)
|
|
return g_strdup_printf ("denominator for `%s' passed as NULL",
|
|
G_VALUE_TYPE_NAME (value));
|
|
|
|
*numerator = value->data[0].v_int;
|
|
*denominator = value->data[1].v_int;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* gst_value_set_fraction:
|
|
* @value: a GValue initialized to #GST_TYPE_FRACTION
|
|
* @numerator: the numerator of the fraction
|
|
* @denominator: the denominator of the fraction
|
|
*
|
|
* Sets @value to the fraction specified by @numerator over @denominator.
|
|
* The fraction gets reduced to the smallest numerator and denominator,
|
|
* and if necessary the sign is moved to the numerator.
|
|
*/
|
|
void
|
|
gst_value_set_fraction (GValue * value, gint numerator, gint denominator)
|
|
{
|
|
gint gcd = 0;
|
|
|
|
g_return_if_fail (GST_VALUE_HOLDS_FRACTION (value));
|
|
g_return_if_fail (denominator != 0);
|
|
g_return_if_fail (denominator >= -G_MAXINT);
|
|
g_return_if_fail (numerator >= -G_MAXINT);
|
|
|
|
/* normalize sign */
|
|
if (denominator < 0) {
|
|
numerator = -numerator;
|
|
denominator = -denominator;
|
|
}
|
|
|
|
/* check for reduction */
|
|
gcd = gst_util_greatest_common_divisor (numerator, denominator);
|
|
if (gcd) {
|
|
numerator /= gcd;
|
|
denominator /= gcd;
|
|
}
|
|
|
|
g_assert (denominator > 0);
|
|
|
|
value->data[0].v_int = numerator;
|
|
value->data[1].v_int = denominator;
|
|
}
|
|
|
|
/**
|
|
* gst_value_get_fraction_numerator:
|
|
* @value: a GValue initialized to #GST_TYPE_FRACTION
|
|
*
|
|
* Gets the numerator of the fraction specified by @value.
|
|
*
|
|
* Returns: the numerator of the fraction.
|
|
*/
|
|
gint
|
|
gst_value_get_fraction_numerator (const GValue * value)
|
|
{
|
|
g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (value), 0);
|
|
|
|
return value->data[0].v_int;
|
|
}
|
|
|
|
/**
|
|
* gst_value_get_fraction_denominator:
|
|
* @value: a GValue initialized to #GST_TYPE_FRACTION
|
|
*
|
|
* Gets the denominator of the fraction specified by @value.
|
|
*
|
|
* Returns: the denominator of the fraction.
|
|
*/
|
|
gint
|
|
gst_value_get_fraction_denominator (const GValue * value)
|
|
{
|
|
g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (value), 1);
|
|
|
|
return value->data[1].v_int;
|
|
}
|
|
|
|
/**
|
|
* gst_value_fraction_multiply:
|
|
* @product: a GValue initialized to #GST_TYPE_FRACTION
|
|
* @factor1: a GValue initialized to #GST_TYPE_FRACTION
|
|
* @factor2: a GValue initialized to #GST_TYPE_FRACTION
|
|
*
|
|
* Multiplies the two #GValue items containing a #GST_TYPE_FRACTION and sets
|
|
* @product to the product of the two fractions.
|
|
*
|
|
* Returns: FALSE in case of an error (like integer overflow), TRUE otherwise.
|
|
*/
|
|
gboolean
|
|
gst_value_fraction_multiply (GValue * product, const GValue * factor1,
|
|
const GValue * factor2)
|
|
{
|
|
gint n1, n2, d1, d2;
|
|
gint res_n, res_d;
|
|
|
|
g_return_val_if_fail (product != NULL, FALSE);
|
|
g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (factor1), FALSE);
|
|
g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (factor2), FALSE);
|
|
|
|
n1 = factor1->data[0].v_int;
|
|
n2 = factor2->data[0].v_int;
|
|
d1 = factor1->data[1].v_int;
|
|
d2 = factor2->data[1].v_int;
|
|
|
|
if (!gst_util_fraction_multiply (n1, d1, n2, d2, &res_n, &res_d))
|
|
return FALSE;
|
|
|
|
gst_value_set_fraction (product, res_n, res_d);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gst_value_fraction_subtract:
|
|
* @dest: a GValue initialized to #GST_TYPE_FRACTION
|
|
* @minuend: a GValue initialized to #GST_TYPE_FRACTION
|
|
* @subtrahend: a GValue initialized to #GST_TYPE_FRACTION
|
|
*
|
|
* Subtracts the @subtrahend from the @minuend and sets @dest to the result.
|
|
*
|
|
* Returns: FALSE in case of an error (like integer overflow), TRUE otherwise.
|
|
*/
|
|
gboolean
|
|
gst_value_fraction_subtract (GValue * dest,
|
|
const GValue * minuend, const GValue * subtrahend)
|
|
{
|
|
gint n1, n2, d1, d2;
|
|
gint res_n, res_d;
|
|
|
|
g_return_val_if_fail (dest != NULL, FALSE);
|
|
g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (minuend), FALSE);
|
|
g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (subtrahend), FALSE);
|
|
|
|
n1 = minuend->data[0].v_int;
|
|
n2 = subtrahend->data[0].v_int;
|
|
d1 = minuend->data[1].v_int;
|
|
d2 = subtrahend->data[1].v_int;
|
|
|
|
if (!gst_util_fraction_add (n1, d1, -n2, d2, &res_n, &res_d))
|
|
return FALSE;
|
|
gst_value_set_fraction (dest, res_n, res_d);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_serialize_fraction (const GValue * value)
|
|
{
|
|
gint32 numerator = value->data[0].v_int;
|
|
gint32 denominator = value->data[1].v_int;
|
|
gboolean positive = TRUE;
|
|
|
|
/* get the sign and make components absolute */
|
|
if (numerator < 0) {
|
|
numerator = -numerator;
|
|
positive = !positive;
|
|
}
|
|
if (denominator < 0) {
|
|
denominator = -denominator;
|
|
positive = !positive;
|
|
}
|
|
|
|
return g_strdup_printf ("%s%d/%d",
|
|
positive ? "" : "-", numerator, denominator);
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_deserialize_fraction (GValue * dest, const gchar * s)
|
|
{
|
|
gint num, den;
|
|
gint num_chars;
|
|
|
|
if (G_UNLIKELY (s == NULL))
|
|
return FALSE;
|
|
|
|
if (G_UNLIKELY (dest == NULL || !GST_VALUE_HOLDS_FRACTION (dest)))
|
|
return FALSE;
|
|
|
|
if (sscanf (s, "%d/%d%n", &num, &den, &num_chars) >= 2) {
|
|
if (s[num_chars] != 0)
|
|
return FALSE;
|
|
if (den == 0)
|
|
return FALSE;
|
|
|
|
gst_value_set_fraction (dest, num, den);
|
|
return TRUE;
|
|
} else if (g_ascii_strcasecmp (s, "1/max") == 0) {
|
|
gst_value_set_fraction (dest, 1, G_MAXINT);
|
|
return TRUE;
|
|
} else if (sscanf (s, "%d%n", &num, &num_chars) >= 1) {
|
|
if (s[num_chars] != 0)
|
|
return FALSE;
|
|
gst_value_set_fraction (dest, num, 1);
|
|
return TRUE;
|
|
} else if (g_ascii_strcasecmp (s, "min") == 0) {
|
|
gst_value_set_fraction (dest, -G_MAXINT, 1);
|
|
return TRUE;
|
|
} else if (g_ascii_strcasecmp (s, "max") == 0) {
|
|
gst_value_set_fraction (dest, G_MAXINT, 1);
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gst_value_transform_fraction_string (const GValue * src_value,
|
|
GValue * dest_value)
|
|
{
|
|
dest_value->data[0].v_pointer = gst_value_serialize_fraction (src_value);
|
|
}
|
|
|
|
static void
|
|
gst_value_transform_string_fraction (const GValue * src_value,
|
|
GValue * dest_value)
|
|
{
|
|
if (!gst_value_deserialize_fraction (dest_value,
|
|
src_value->data[0].v_pointer))
|
|
/* If the deserialize fails, ensure we leave the fraction in a
|
|
* valid, if incorrect, state */
|
|
gst_value_set_fraction (dest_value, 0, 1);
|
|
}
|
|
|
|
static void
|
|
gst_value_transform_double_fraction (const GValue * src_value,
|
|
GValue * dest_value)
|
|
{
|
|
gdouble src = g_value_get_double (src_value);
|
|
gint n, d;
|
|
|
|
gst_util_double_to_fraction (src, &n, &d);
|
|
gst_value_set_fraction (dest_value, n, d);
|
|
}
|
|
|
|
static void
|
|
gst_value_transform_float_fraction (const GValue * src_value,
|
|
GValue * dest_value)
|
|
{
|
|
gfloat src = g_value_get_float (src_value);
|
|
gint n, d;
|
|
|
|
gst_util_double_to_fraction (src, &n, &d);
|
|
gst_value_set_fraction (dest_value, n, d);
|
|
}
|
|
|
|
static void
|
|
gst_value_transform_fraction_double (const GValue * src_value,
|
|
GValue * dest_value)
|
|
{
|
|
dest_value->data[0].v_double = ((double) src_value->data[0].v_int) /
|
|
((double) src_value->data[1].v_int);
|
|
}
|
|
|
|
static void
|
|
gst_value_transform_fraction_float (const GValue * src_value,
|
|
GValue * dest_value)
|
|
{
|
|
dest_value->data[0].v_float = ((float) src_value->data[0].v_int) /
|
|
((float) src_value->data[1].v_int);
|
|
}
|
|
|
|
static gint
|
|
gst_value_compare_fraction (const GValue * value1, const GValue * value2)
|
|
{
|
|
gint n1, n2;
|
|
gint d1, d2;
|
|
gint ret;
|
|
|
|
n1 = value1->data[0].v_int;
|
|
n2 = value2->data[0].v_int;
|
|
d1 = value1->data[1].v_int;
|
|
d2 = value2->data[1].v_int;
|
|
|
|
/* fractions are reduced when set, so we can quickly see if they're equal */
|
|
if (n1 == n2 && d1 == d2)
|
|
return GST_VALUE_EQUAL;
|
|
|
|
if (d1 == 0 && d2 == 0)
|
|
return GST_VALUE_UNORDERED;
|
|
else if (d1 == 0)
|
|
return GST_VALUE_GREATER_THAN;
|
|
else if (d2 == 0)
|
|
return GST_VALUE_LESS_THAN;
|
|
|
|
ret = gst_util_fraction_compare (n1, d1, n2, d2);
|
|
if (ret == -1)
|
|
return GST_VALUE_LESS_THAN;
|
|
else if (ret == 1)
|
|
return GST_VALUE_GREATER_THAN;
|
|
|
|
/* Equality can't happen here because we check for that
|
|
* first already */
|
|
g_return_val_if_reached (GST_VALUE_UNORDERED);
|
|
}
|
|
|
|
/*********
|
|
* GDate *
|
|
*********/
|
|
|
|
/**
|
|
* gst_value_set_date:
|
|
* @value: a GValue initialized to GST_TYPE_DATE
|
|
* @date: the date to set the value to
|
|
*
|
|
* Sets the contents of @value to correspond to @date. The actual
|
|
* #GDate structure is copied before it is used.
|
|
*/
|
|
void
|
|
gst_value_set_date (GValue * value, const GDate * date)
|
|
{
|
|
g_return_if_fail (G_VALUE_TYPE (value) == GST_TYPE_DATE);
|
|
g_return_if_fail (g_date_valid (date));
|
|
|
|
g_value_set_boxed (value, date);
|
|
}
|
|
|
|
/**
|
|
* gst_value_get_date:
|
|
* @value: a GValue initialized to GST_TYPE_DATE
|
|
*
|
|
* Gets the contents of @value.
|
|
*
|
|
* Returns: (transfer none): the contents of @value
|
|
*/
|
|
const GDate *
|
|
gst_value_get_date (const GValue * value)
|
|
{
|
|
g_return_val_if_fail (G_VALUE_TYPE (value) == GST_TYPE_DATE, NULL);
|
|
|
|
return (const GDate *) g_value_get_boxed (value);
|
|
}
|
|
|
|
static gpointer
|
|
gst_date_copy (gpointer boxed)
|
|
{
|
|
const GDate *date = (const GDate *) boxed;
|
|
|
|
if (!g_date_valid (date)) {
|
|
GST_WARNING ("invalid GDate");
|
|
return NULL;
|
|
}
|
|
|
|
return g_date_new_julian (g_date_get_julian (date));
|
|
}
|
|
|
|
static gint
|
|
gst_value_compare_date (const GValue * value1, const GValue * value2)
|
|
{
|
|
const GDate *date1 = (const GDate *) g_value_get_boxed (value1);
|
|
const GDate *date2 = (const GDate *) g_value_get_boxed (value2);
|
|
guint32 j1, j2;
|
|
|
|
if (date1 == date2)
|
|
return GST_VALUE_EQUAL;
|
|
|
|
if ((date1 == NULL || !g_date_valid (date1))
|
|
&& (date2 != NULL && g_date_valid (date2))) {
|
|
return GST_VALUE_LESS_THAN;
|
|
}
|
|
|
|
if ((date2 == NULL || !g_date_valid (date2))
|
|
&& (date1 != NULL && g_date_valid (date1))) {
|
|
return GST_VALUE_GREATER_THAN;
|
|
}
|
|
|
|
if (date1 == NULL || date2 == NULL || !g_date_valid (date1)
|
|
|| !g_date_valid (date2)) {
|
|
return GST_VALUE_UNORDERED;
|
|
}
|
|
|
|
j1 = g_date_get_julian (date1);
|
|
j2 = g_date_get_julian (date2);
|
|
|
|
if (j1 == j2)
|
|
return GST_VALUE_EQUAL;
|
|
else if (j1 < j2)
|
|
return GST_VALUE_LESS_THAN;
|
|
else
|
|
return GST_VALUE_GREATER_THAN;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_serialize_date (const GValue * val)
|
|
{
|
|
const GDate *date = (const GDate *) g_value_get_boxed (val);
|
|
|
|
if (date == NULL || !g_date_valid (date))
|
|
return g_strdup ("9999-99-99");
|
|
|
|
return g_strdup_printf ("%04u-%02u-%02u", g_date_get_year (date),
|
|
g_date_get_month (date), g_date_get_day (date));
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_deserialize_date (GValue * dest, const gchar * s)
|
|
{
|
|
guint year, month, day;
|
|
|
|
if (!s || sscanf (s, "%04u-%02u-%02u", &year, &month, &day) != 3)
|
|
return FALSE;
|
|
|
|
if (!g_date_valid_dmy (day, month, year))
|
|
return FALSE;
|
|
|
|
g_value_take_boxed (dest, g_date_new_dmy (day, month, year));
|
|
return TRUE;
|
|
}
|
|
|
|
/*************
|
|
* GstDateTime *
|
|
*************/
|
|
|
|
static gint
|
|
gst_value_compare_date_time (const GValue * value1, const GValue * value2)
|
|
{
|
|
const GstDateTime *date1 = (const GstDateTime *) g_value_get_boxed (value1);
|
|
const GstDateTime *date2 = (const GstDateTime *) g_value_get_boxed (value2);
|
|
gint ret;
|
|
|
|
if (date1 == date2)
|
|
return GST_VALUE_EQUAL;
|
|
|
|
if ((date1 == NULL) && (date2 != NULL)) {
|
|
return GST_VALUE_LESS_THAN;
|
|
}
|
|
if ((date2 == NULL) && (date1 != NULL)) {
|
|
return GST_VALUE_LESS_THAN;
|
|
}
|
|
|
|
ret = priv_gst_date_time_compare (date1, date2);
|
|
|
|
if (ret == 0)
|
|
return GST_VALUE_EQUAL;
|
|
else if (ret < 0)
|
|
return GST_VALUE_LESS_THAN;
|
|
else
|
|
return GST_VALUE_GREATER_THAN;
|
|
}
|
|
|
|
static gchar *
|
|
gst_value_serialize_date_time (const GValue * val)
|
|
{
|
|
GstDateTime *date = (GstDateTime *) g_value_get_boxed (val);
|
|
gfloat offset;
|
|
gint tzhour, tzminute;
|
|
|
|
if (date == NULL)
|
|
return g_strdup ("null");
|
|
|
|
offset = gst_date_time_get_time_zone_offset (date);
|
|
|
|
tzhour = (gint) ABS (offset);
|
|
tzminute = (gint) ((ABS (offset) - tzhour) * 60);
|
|
|
|
return g_strdup_printf ("\"%04d-%02d-%02dT%02d:%02d:%02d.%06d"
|
|
"%c%02d%02d\"", gst_date_time_get_year (date),
|
|
gst_date_time_get_month (date), gst_date_time_get_day (date),
|
|
gst_date_time_get_hour (date), gst_date_time_get_minute (date),
|
|
gst_date_time_get_second (date), gst_date_time_get_microsecond (date),
|
|
offset >= 0 ? '+' : '-', tzhour, tzminute);
|
|
}
|
|
|
|
static gboolean
|
|
gst_value_deserialize_date_time (GValue * dest, const gchar * s)
|
|
{
|
|
gint year, month, day, hour, minute, second, usecond;
|
|
gchar signal;
|
|
gint offset = 0;
|
|
gfloat tzoffset = 0;
|
|
gint ret;
|
|
|
|
if (!s || strcmp (s, "null") == 0) {
|
|
return FALSE;
|
|
}
|
|
|
|
ret = sscanf (s, "%04d-%02d-%02dT%02d:%02d:%02d.%06d%c%04d",
|
|
&year, &month, &day, &hour, &minute, &second, &usecond, &signal, &offset);
|
|
if (ret >= 9) {
|
|
tzoffset = (offset / 100) + ((offset % 100) / 60.0);
|
|
if (signal == '-')
|
|
tzoffset = -tzoffset;
|
|
} else
|
|
return FALSE;
|
|
|
|
g_value_take_boxed (dest, gst_date_time_new (tzoffset, year, month, day, hour,
|
|
minute, second + (usecond / 1000000.0)));
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_value_transform_date_string (const GValue * src_value, GValue * dest_value)
|
|
{
|
|
dest_value->data[0].v_pointer = gst_value_serialize_date (src_value);
|
|
}
|
|
|
|
static void
|
|
gst_value_transform_string_date (const GValue * src_value, GValue * dest_value)
|
|
{
|
|
gst_value_deserialize_date (dest_value, src_value->data[0].v_pointer);
|
|
}
|
|
|
|
static void
|
|
gst_value_transform_object_string (const GValue * src_value,
|
|
GValue * dest_value)
|
|
{
|
|
GstObject *obj;
|
|
gchar *str;
|
|
|
|
obj = g_value_get_object (src_value);
|
|
if (obj) {
|
|
str =
|
|
g_strdup_printf ("(%s) %s", G_OBJECT_TYPE_NAME (obj),
|
|
GST_OBJECT_NAME (obj));
|
|
} else {
|
|
str = g_strdup ("NULL");
|
|
}
|
|
|
|
dest_value->data[0].v_pointer = str;
|
|
}
|
|
|
|
static GTypeInfo _info = {
|
|
0,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
0,
|
|
0,
|
|
NULL,
|
|
NULL,
|
|
};
|
|
|
|
static GTypeFundamentalInfo _finfo = {
|
|
0
|
|
};
|
|
|
|
#define FUNC_VALUE_GET_TYPE(type, name) \
|
|
GType gst_ ## type ## _get_type (void) \
|
|
{ \
|
|
static volatile GType gst_ ## type ## _type = 0; \
|
|
\
|
|
if (g_once_init_enter (&gst_ ## type ## _type)) { \
|
|
GType _type; \
|
|
_info.value_table = & _gst_ ## type ## _value_table; \
|
|
_type = g_type_register_fundamental ( \
|
|
g_type_fundamental_next (), \
|
|
name, &_info, &_finfo, 0); \
|
|
g_once_init_leave(&gst_ ## type ## _type, _type); \
|
|
} \
|
|
\
|
|
return gst_ ## type ## _type; \
|
|
}
|
|
|
|
static const GTypeValueTable _gst_fourcc_value_table = {
|
|
gst_value_init_fourcc,
|
|
NULL,
|
|
gst_value_copy_fourcc,
|
|
NULL,
|
|
(char *) "i",
|
|
gst_value_collect_fourcc,
|
|
(char *) "p",
|
|
gst_value_lcopy_fourcc
|
|
};
|
|
|
|
FUNC_VALUE_GET_TYPE (fourcc, "GstFourcc");
|
|
|
|
static const GTypeValueTable _gst_int_range_value_table = {
|
|
gst_value_init_int_range,
|
|
NULL,
|
|
gst_value_copy_int_range,
|
|
NULL,
|
|
(char *) "ii",
|
|
gst_value_collect_int_range,
|
|
(char *) "pp",
|
|
gst_value_lcopy_int_range
|
|
};
|
|
|
|
FUNC_VALUE_GET_TYPE (int_range, "GstIntRange");
|
|
|
|
static const GTypeValueTable _gst_int64_range_value_table = {
|
|
gst_value_init_int64_range,
|
|
NULL,
|
|
gst_value_copy_int64_range,
|
|
NULL,
|
|
(char *) "qq",
|
|
gst_value_collect_int64_range,
|
|
(char *) "pp",
|
|
gst_value_lcopy_int64_range
|
|
};
|
|
|
|
FUNC_VALUE_GET_TYPE (int64_range, "GstInt64Range");
|
|
|
|
static const GTypeValueTable _gst_double_range_value_table = {
|
|
gst_value_init_double_range,
|
|
NULL,
|
|
gst_value_copy_double_range,
|
|
NULL,
|
|
(char *) "dd",
|
|
gst_value_collect_double_range,
|
|
(char *) "pp",
|
|
gst_value_lcopy_double_range
|
|
};
|
|
|
|
FUNC_VALUE_GET_TYPE (double_range, "GstDoubleRange");
|
|
|
|
static const GTypeValueTable _gst_fraction_range_value_table = {
|
|
gst_value_init_fraction_range,
|
|
gst_value_free_fraction_range,
|
|
gst_value_copy_fraction_range,
|
|
NULL,
|
|
(char *) "iiii",
|
|
gst_value_collect_fraction_range,
|
|
(char *) "pppp",
|
|
gst_value_lcopy_fraction_range
|
|
};
|
|
|
|
FUNC_VALUE_GET_TYPE (fraction_range, "GstFractionRange");
|
|
|
|
static const GTypeValueTable _gst_value_list_value_table = {
|
|
gst_value_init_list_or_array,
|
|
gst_value_free_list_or_array,
|
|
gst_value_copy_list_or_array,
|
|
gst_value_list_or_array_peek_pointer,
|
|
(char *) "p",
|
|
gst_value_collect_list_or_array,
|
|
(char *) "p",
|
|
gst_value_lcopy_list_or_array
|
|
};
|
|
|
|
FUNC_VALUE_GET_TYPE (value_list, "GstValueList");
|
|
|
|
static const GTypeValueTable _gst_value_array_value_table = {
|
|
gst_value_init_list_or_array,
|
|
gst_value_free_list_or_array,
|
|
gst_value_copy_list_or_array,
|
|
gst_value_list_or_array_peek_pointer,
|
|
(char *) "p",
|
|
gst_value_collect_list_or_array,
|
|
(char *) "p",
|
|
gst_value_lcopy_list_or_array
|
|
};
|
|
|
|
FUNC_VALUE_GET_TYPE (value_array, "GstValueArray");
|
|
|
|
static const GTypeValueTable _gst_fraction_value_table = {
|
|
gst_value_init_fraction,
|
|
NULL,
|
|
gst_value_copy_fraction,
|
|
NULL,
|
|
(char *) "ii",
|
|
gst_value_collect_fraction,
|
|
(char *) "pp",
|
|
gst_value_lcopy_fraction
|
|
};
|
|
|
|
FUNC_VALUE_GET_TYPE (fraction, "GstFraction");
|
|
|
|
|
|
GType
|
|
gst_date_get_type (void)
|
|
{
|
|
static GType gst_date_type = 0;
|
|
|
|
if (G_UNLIKELY (gst_date_type == 0)) {
|
|
/* FIXME 0.11: we require GLib 2.8 already
|
|
* Not using G_TYPE_DATE here on purpose, even if we could
|
|
* if GLIB_CHECK_VERSION(2,8,0) was true: we don't want the
|
|
* serialised strings to have different type strings depending
|
|
* on what version is used, so FIXME when we require GLib-2.8 */
|
|
gst_date_type = g_boxed_type_register_static ("GstDate",
|
|
(GBoxedCopyFunc) gst_date_copy, (GBoxedFreeFunc) g_date_free);
|
|
}
|
|
|
|
return gst_date_type;
|
|
}
|
|
|
|
GType
|
|
gst_date_time_get_type (void)
|
|
{
|
|
static GType gst_date_time_type = 0;
|
|
|
|
if (G_UNLIKELY (gst_date_time_type == 0)) {
|
|
gst_date_time_type = g_boxed_type_register_static ("GstDateTime",
|
|
(GBoxedCopyFunc) gst_date_time_ref,
|
|
(GBoxedFreeFunc) gst_date_time_unref);
|
|
}
|
|
|
|
return gst_date_time_type;
|
|
}
|
|
|
|
|
|
void
|
|
_gst_value_initialize (void)
|
|
{
|
|
gst_value_table = g_array_new (FALSE, FALSE, sizeof (GstValueTable));
|
|
gst_value_hash = g_hash_table_new (NULL, NULL);
|
|
gst_value_union_funcs = g_array_new (FALSE, FALSE,
|
|
sizeof (GstValueUnionInfo));
|
|
gst_value_intersect_funcs = g_array_new (FALSE, FALSE,
|
|
sizeof (GstValueIntersectInfo));
|
|
gst_value_subtract_funcs = g_array_new (FALSE, FALSE,
|
|
sizeof (GstValueSubtractInfo));
|
|
|
|
{
|
|
static GstValueTable gst_value = {
|
|
0,
|
|
gst_value_compare_fourcc,
|
|
gst_value_serialize_fourcc,
|
|
gst_value_deserialize_fourcc,
|
|
};
|
|
|
|
gst_value.type = gst_fourcc_get_type ();
|
|
gst_value_register (&gst_value);
|
|
}
|
|
|
|
{
|
|
static GstValueTable gst_value = {
|
|
0,
|
|
gst_value_compare_int_range,
|
|
gst_value_serialize_int_range,
|
|
gst_value_deserialize_int_range,
|
|
};
|
|
|
|
gst_value.type = gst_int_range_get_type ();
|
|
gst_value_register (&gst_value);
|
|
}
|
|
|
|
{
|
|
static GstValueTable gst_value = {
|
|
0,
|
|
gst_value_compare_int64_range,
|
|
gst_value_serialize_int64_range,
|
|
gst_value_deserialize_int64_range,
|
|
};
|
|
|
|
gst_value.type = gst_int64_range_get_type ();
|
|
gst_value_register (&gst_value);
|
|
}
|
|
|
|
{
|
|
static GstValueTable gst_value = {
|
|
0,
|
|
gst_value_compare_double_range,
|
|
gst_value_serialize_double_range,
|
|
gst_value_deserialize_double_range,
|
|
};
|
|
|
|
gst_value.type = gst_double_range_get_type ();
|
|
gst_value_register (&gst_value);
|
|
}
|
|
|
|
{
|
|
static GstValueTable gst_value = {
|
|
0,
|
|
gst_value_compare_fraction_range,
|
|
gst_value_serialize_fraction_range,
|
|
gst_value_deserialize_fraction_range,
|
|
};
|
|
|
|
gst_value.type = gst_fraction_range_get_type ();
|
|
gst_value_register (&gst_value);
|
|
}
|
|
|
|
{
|
|
static GstValueTable gst_value = {
|
|
0,
|
|
gst_value_compare_list,
|
|
gst_value_serialize_list,
|
|
gst_value_deserialize_list,
|
|
};
|
|
|
|
gst_value.type = gst_value_list_get_type ();
|
|
gst_value_register (&gst_value);
|
|
}
|
|
|
|
{
|
|
static GstValueTable gst_value = {
|
|
0,
|
|
gst_value_compare_array,
|
|
gst_value_serialize_array,
|
|
gst_value_deserialize_array,
|
|
};
|
|
|
|
gst_value.type = gst_value_array_get_type ();
|
|
gst_value_register (&gst_value);
|
|
}
|
|
|
|
{
|
|
#if 0
|
|
static const GTypeValueTable value_table = {
|
|
gst_value_init_buffer,
|
|
NULL,
|
|
gst_value_copy_buffer,
|
|
NULL,
|
|
"i",
|
|
NULL, /*gst_value_collect_buffer, */
|
|
"p",
|
|
NULL /*gst_value_lcopy_buffer */
|
|
};
|
|
#endif
|
|
static GstValueTable gst_value = {
|
|
0,
|
|
gst_value_compare_buffer,
|
|
gst_value_serialize_buffer,
|
|
gst_value_deserialize_buffer,
|
|
};
|
|
|
|
gst_value.type = GST_TYPE_BUFFER;
|
|
gst_value_register (&gst_value);
|
|
}
|
|
{
|
|
static GstValueTable gst_value = {
|
|
0,
|
|
gst_value_compare_fraction,
|
|
gst_value_serialize_fraction,
|
|
gst_value_deserialize_fraction,
|
|
};
|
|
|
|
gst_value.type = gst_fraction_get_type ();
|
|
gst_value_register (&gst_value);
|
|
}
|
|
{
|
|
static GstValueTable gst_value = {
|
|
0,
|
|
NULL,
|
|
gst_value_serialize_caps,
|
|
gst_value_deserialize_caps,
|
|
};
|
|
|
|
gst_value.type = GST_TYPE_CAPS;
|
|
gst_value_register (&gst_value);
|
|
}
|
|
{
|
|
static GstValueTable gst_value = {
|
|
0,
|
|
NULL,
|
|
gst_value_serialize_structure,
|
|
gst_value_deserialize_structure,
|
|
};
|
|
|
|
gst_value.type = GST_TYPE_STRUCTURE;
|
|
gst_value_register (&gst_value);
|
|
}
|
|
{
|
|
static GstValueTable gst_value = {
|
|
0,
|
|
gst_value_compare_date,
|
|
gst_value_serialize_date,
|
|
gst_value_deserialize_date,
|
|
};
|
|
|
|
gst_value.type = gst_date_get_type ();
|
|
gst_value_register (&gst_value);
|
|
}
|
|
{
|
|
static GstValueTable gst_value = {
|
|
0,
|
|
gst_value_compare_date_time,
|
|
gst_value_serialize_date_time,
|
|
gst_value_deserialize_date_time,
|
|
};
|
|
|
|
gst_value.type = gst_date_time_get_type ();
|
|
gst_value_register (&gst_value);
|
|
}
|
|
|
|
REGISTER_SERIALIZATION (G_TYPE_DOUBLE, double);
|
|
REGISTER_SERIALIZATION (G_TYPE_FLOAT, float);
|
|
|
|
REGISTER_SERIALIZATION (G_TYPE_STRING, string);
|
|
REGISTER_SERIALIZATION (G_TYPE_BOOLEAN, boolean);
|
|
REGISTER_SERIALIZATION (G_TYPE_ENUM, enum);
|
|
|
|
REGISTER_SERIALIZATION (G_TYPE_FLAGS, flags);
|
|
|
|
REGISTER_SERIALIZATION (G_TYPE_INT, int);
|
|
|
|
REGISTER_SERIALIZATION (G_TYPE_INT64, int64);
|
|
REGISTER_SERIALIZATION (G_TYPE_LONG, long);
|
|
|
|
REGISTER_SERIALIZATION (G_TYPE_UINT, uint);
|
|
REGISTER_SERIALIZATION (G_TYPE_UINT64, uint64);
|
|
REGISTER_SERIALIZATION (G_TYPE_ULONG, ulong);
|
|
|
|
REGISTER_SERIALIZATION (G_TYPE_UCHAR, uchar);
|
|
|
|
g_value_register_transform_func (GST_TYPE_FOURCC, G_TYPE_STRING,
|
|
gst_value_transform_fourcc_string);
|
|
g_value_register_transform_func (GST_TYPE_INT_RANGE, G_TYPE_STRING,
|
|
gst_value_transform_int_range_string);
|
|
g_value_register_transform_func (GST_TYPE_INT64_RANGE, G_TYPE_STRING,
|
|
gst_value_transform_int64_range_string);
|
|
g_value_register_transform_func (GST_TYPE_DOUBLE_RANGE, G_TYPE_STRING,
|
|
gst_value_transform_double_range_string);
|
|
g_value_register_transform_func (GST_TYPE_FRACTION_RANGE, G_TYPE_STRING,
|
|
gst_value_transform_fraction_range_string);
|
|
g_value_register_transform_func (GST_TYPE_LIST, G_TYPE_STRING,
|
|
gst_value_transform_list_string);
|
|
g_value_register_transform_func (GST_TYPE_ARRAY, G_TYPE_STRING,
|
|
gst_value_transform_array_string);
|
|
g_value_register_transform_func (GST_TYPE_FRACTION, G_TYPE_STRING,
|
|
gst_value_transform_fraction_string);
|
|
g_value_register_transform_func (G_TYPE_STRING, GST_TYPE_FRACTION,
|
|
gst_value_transform_string_fraction);
|
|
g_value_register_transform_func (GST_TYPE_FRACTION, G_TYPE_DOUBLE,
|
|
gst_value_transform_fraction_double);
|
|
g_value_register_transform_func (GST_TYPE_FRACTION, G_TYPE_FLOAT,
|
|
gst_value_transform_fraction_float);
|
|
g_value_register_transform_func (G_TYPE_DOUBLE, GST_TYPE_FRACTION,
|
|
gst_value_transform_double_fraction);
|
|
g_value_register_transform_func (G_TYPE_FLOAT, GST_TYPE_FRACTION,
|
|
gst_value_transform_float_fraction);
|
|
g_value_register_transform_func (GST_TYPE_DATE, G_TYPE_STRING,
|
|
gst_value_transform_date_string);
|
|
g_value_register_transform_func (G_TYPE_STRING, GST_TYPE_DATE,
|
|
gst_value_transform_string_date);
|
|
g_value_register_transform_func (GST_TYPE_OBJECT, G_TYPE_STRING,
|
|
gst_value_transform_object_string);
|
|
|
|
gst_value_register_intersect_func (G_TYPE_INT, GST_TYPE_INT_RANGE,
|
|
gst_value_intersect_int_int_range);
|
|
gst_value_register_intersect_func (GST_TYPE_INT_RANGE, GST_TYPE_INT_RANGE,
|
|
gst_value_intersect_int_range_int_range);
|
|
gst_value_register_intersect_func (G_TYPE_INT64, GST_TYPE_INT64_RANGE,
|
|
gst_value_intersect_int64_int64_range);
|
|
gst_value_register_intersect_func (GST_TYPE_INT64_RANGE, GST_TYPE_INT64_RANGE,
|
|
gst_value_intersect_int64_range_int64_range);
|
|
gst_value_register_intersect_func (G_TYPE_DOUBLE, GST_TYPE_DOUBLE_RANGE,
|
|
gst_value_intersect_double_double_range);
|
|
gst_value_register_intersect_func (GST_TYPE_DOUBLE_RANGE,
|
|
GST_TYPE_DOUBLE_RANGE, gst_value_intersect_double_range_double_range);
|
|
gst_value_register_intersect_func (GST_TYPE_ARRAY,
|
|
GST_TYPE_ARRAY, gst_value_intersect_array);
|
|
gst_value_register_intersect_func (GST_TYPE_FRACTION, GST_TYPE_FRACTION_RANGE,
|
|
gst_value_intersect_fraction_fraction_range);
|
|
gst_value_register_intersect_func (GST_TYPE_FRACTION_RANGE,
|
|
GST_TYPE_FRACTION_RANGE,
|
|
gst_value_intersect_fraction_range_fraction_range);
|
|
|
|
gst_value_register_subtract_func (G_TYPE_INT, GST_TYPE_INT_RANGE,
|
|
gst_value_subtract_int_int_range);
|
|
gst_value_register_subtract_func (GST_TYPE_INT_RANGE, G_TYPE_INT,
|
|
gst_value_subtract_int_range_int);
|
|
gst_value_register_subtract_func (GST_TYPE_INT_RANGE, GST_TYPE_INT_RANGE,
|
|
gst_value_subtract_int_range_int_range);
|
|
gst_value_register_subtract_func (G_TYPE_INT64, GST_TYPE_INT64_RANGE,
|
|
gst_value_subtract_int64_int64_range);
|
|
gst_value_register_subtract_func (GST_TYPE_INT64_RANGE, G_TYPE_INT64,
|
|
gst_value_subtract_int64_range_int64);
|
|
gst_value_register_subtract_func (GST_TYPE_INT64_RANGE, GST_TYPE_INT64_RANGE,
|
|
gst_value_subtract_int64_range_int64_range);
|
|
gst_value_register_subtract_func (G_TYPE_DOUBLE, GST_TYPE_DOUBLE_RANGE,
|
|
gst_value_subtract_double_double_range);
|
|
gst_value_register_subtract_func (GST_TYPE_DOUBLE_RANGE, G_TYPE_DOUBLE,
|
|
gst_value_subtract_double_range_double);
|
|
gst_value_register_subtract_func (GST_TYPE_DOUBLE_RANGE,
|
|
GST_TYPE_DOUBLE_RANGE, gst_value_subtract_double_range_double_range);
|
|
|
|
gst_value_register_subtract_func (GST_TYPE_FRACTION, GST_TYPE_FRACTION_RANGE,
|
|
gst_value_subtract_fraction_fraction_range);
|
|
gst_value_register_subtract_func (GST_TYPE_FRACTION_RANGE, GST_TYPE_FRACTION,
|
|
gst_value_subtract_fraction_range_fraction);
|
|
gst_value_register_subtract_func (GST_TYPE_FRACTION_RANGE,
|
|
GST_TYPE_FRACTION_RANGE,
|
|
gst_value_subtract_fraction_range_fraction_range);
|
|
|
|
/* see bug #317246, #64994, #65041 */
|
|
{
|
|
volatile GType date_type = G_TYPE_DATE;
|
|
|
|
g_type_name (date_type);
|
|
}
|
|
|
|
gst_value_register_union_func (G_TYPE_INT, GST_TYPE_INT_RANGE,
|
|
gst_value_union_int_int_range);
|
|
gst_value_register_union_func (GST_TYPE_INT_RANGE, GST_TYPE_INT_RANGE,
|
|
gst_value_union_int_range_int_range);
|
|
|
|
#if 0
|
|
/* Implement these if needed */
|
|
gst_value_register_union_func (GST_TYPE_FRACTION, GST_TYPE_FRACTION_RANGE,
|
|
gst_value_union_fraction_fraction_range);
|
|
gst_value_register_union_func (GST_TYPE_FRACTION_RANGE,
|
|
GST_TYPE_FRACTION_RANGE, gst_value_union_fraction_range_fraction_range);
|
|
#endif
|
|
}
|