FCL/sf/mw/gstreamer: comparison gstreamer

equal deleted inserted replaced

--1:000000000000
+:0e761a78d257
+/* GStreamer
+* Copyright (C) <2003> David A. Schleef <ds@schleef.org>
+*
+* This library is free software; you can redistribute it and/or
+* modify it under the terms of the GNU Library General Public
+* License as published by the Free Software Foundation; either
+* version 2 of the License, or (at your option) any later version.
+*
+* This library is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+* Library General Public License for more details.
+*
+* You should have received a copy of the GNU Library General Public
+* License along with this library; if not, write to the
+* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+* Boston, MA 02111-1307, USA.
+*/
+/**
+* SECTION:gstvalue
+* @short_description: GValue and GParamSpec implementations specific
+* to GStreamer
+*
+* GValue and GParamSpec implementations specific to GStreamer.
+*
+* Note that operations on the same GstValue (or GValue) from multiple
+* threads may lead to undefined behaviour.
+*
+* Last reviewed on 2006-03-07 (0.10.4)
+*/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include <math.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include "gst_private.h"
+#include "glib-compat-private.h"
+#include <gst/gst.h>
+#include <gobject/gvaluecollector.h>
+#ifdef __SYMBIAN32__
+#include <glib_global.h>
+#endif
+typedef struct _GstValueUnionInfo GstValueUnionInfo;
+struct _GstValueUnionInfo
+{
+GType type1;
+GType type2;
+GstValueUnionFunc func;
+};
+typedef struct _GstValueIntersectInfo GstValueIntersectInfo;
+struct _GstValueIntersectInfo
+{
+GType type1;
+GType type2;
+GstValueIntersectFunc func;
+};
+typedef struct _GstValueSubtractInfo GstValueSubtractInfo;
+struct _GstValueSubtractInfo
+{
+GType minuend;
+GType subtrahend;
+GstValueSubtractFunc func;
+};
+static GArray *gst_value_table;
+static GArray *gst_value_union_funcs;
+static GArray *gst_value_intersect_funcs;
+static GArray *gst_value_subtract_funcs;
+/* Forward declarations */
+static gint gst_greatest_common_divisor (gint a, gint b);
+static gchar *gst_value_serialize_fraction (const GValue * value);
+static GstValueCompareFunc gst_value_get_compare_func (const GValue * value1);
+static gint gst_value_compare_with_func (const GValue * value1,
+const GValue * value2, GstValueCompareFunc compare);
+/********
+* list *
+********/
+/* two helper functions to serialize/stringify any type of list
+* regular lists are done with { }, arrays with < >
+*/
+static gchar *
+gst_value_serialize_any_list (const GValue * value, const gchar * begin,
+const gchar * end)
+{
+guint i;
+GArray *array = value->data[0].v_pointer;
+GString *s;
+GValue *v;
+gchar *s_val;
+/* estimate minimum string length to minimise re-allocs in GString */
+s = g_string_sized_new (2 + (6 * array->len) + 2);
+g_string_append (s, begin);
+for (i = 0; i < array->len; i++) {
+v = &g_array_index (array, GValue, i);
+s_val = gst_value_serialize (v);
+g_string_append (s, s_val);
+g_free (s_val);
+if (i < array->len - 1) {
+g_string_append_len (s, ", ", 2);
+}
+}
+g_string_append (s, end);
+return g_string_free (s, FALSE);
+}
+static void
+gst_value_transform_any_list_string (const GValue * src_value,
+GValue * dest_value, const gchar * begin, const gchar * end)
+{
+GValue *list_value;
+GArray *array;
+GString *s;
+guint i;
+gchar *list_s;
+array = src_value->data[0].v_pointer;
+/* estimate minimum string length to minimise re-allocs in GString */
+s = g_string_sized_new (2 + (10 * array->len) + 2);
+g_string_append (s, begin);
+for (i = 0; i < array->len; i++) {
+list_value = &g_array_index (array, GValue, i);
+if (i != 0) {
+g_string_append_len (s, ", ", 2);
+}
+list_s = g_strdup_value_contents (list_value);
+g_string_append (s, list_s);
+g_free (list_s);
+}
+g_string_append (s, end);
+dest_value->data[0].v_pointer = g_string_free (s, FALSE);
+}
+/*
+* helper function to see if a type is fixed. Is used internally here and
+* there. Do not export, since it doesn't work for types where the content
+* decides the fixedness (e.g. GST_TYPE_ARRAY).
+*/
+static gboolean
+gst_type_is_fixed (GType type)
+{
+if (type == GST_TYPE_INT_RANGE || type == GST_TYPE_DOUBLE_RANGE ||
+type == GST_TYPE_LIST) {
+return FALSE;
+}
+if (G_TYPE_FUNDAMENTAL (type) <=
+G_TYPE_MAKE_FUNDAMENTAL (G_TYPE_RESERVED_GLIB_LAST)) {
+return TRUE;
+}
+if (type == GST_TYPE_BUFFER || type == GST_TYPE_FOURCC
+|| type == GST_TYPE_ARRAY || type == GST_TYPE_FRACTION) {
+return TRUE;
+}
+return FALSE;
+}
+/* GValue functions usable for both regular lists and arrays */
+static void
+gst_value_init_list_or_array (GValue * value)
+{
+value->data[0].v_pointer = g_array_new (FALSE, TRUE, sizeof (GValue));
+}
+static GArray *
+copy_garray_of_gstvalue (const GArray * src)
+{
+GArray *dest;
+guint i;
+dest = g_array_sized_new (FALSE, TRUE, sizeof (GValue), src->len);
+g_array_set_size (dest, src->len);
+for (i = 0; i < src->len; i++) {
+gst_value_init_and_copy (&g_array_index (dest, GValue, i),
+&g_array_index (src, GValue, i));
+}
+return dest;
+}
+static void
+gst_value_copy_list_or_array (const GValue * src_value, GValue * dest_value)
+{
+dest_value->data[0].v_pointer =
+copy_garray_of_gstvalue ((GArray *) src_value->data[0].v_pointer);
+}
+static void
+gst_value_free_list_or_array (GValue * value)
+{
+guint i;
+GArray *src = (GArray *) value->data[0].v_pointer;
+if ((value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS) == 0) {
+for (i = 0; i < src->len; i++) {
+g_value_unset (&g_array_index (src, GValue, i));
+}
+g_array_free (src, TRUE);
+}
+}
+static gpointer
+gst_value_list_or_array_peek_pointer (const GValue * value)
+{
+return value->data[0].v_pointer;
+}
+static gchar *
+gst_value_collect_list_or_array (GValue * value, guint n_collect_values,
+GTypeCValue * collect_values, guint collect_flags)
+{
+if (collect_flags & G_VALUE_NOCOPY_CONTENTS) {
+value->data[0].v_pointer = collect_values[0].v_pointer;
+value->data[1].v_uint = G_VALUE_NOCOPY_CONTENTS;
+} else {
+value->data[0].v_pointer =
+copy_garray_of_gstvalue ((GArray *) collect_values[0].v_pointer);
+}
+return NULL;
+}
+static gchar *
+gst_value_lcopy_list_or_array (const GValue * value, guint n_collect_values,
+GTypeCValue * collect_values, guint collect_flags)
+{
+GArray **dest = collect_values[0].v_pointer;
+if (!dest)
+return g_strdup_printf ("value location for `%s' passed as NULL",
+G_VALUE_TYPE_NAME (value));
+if (!value->data[0].v_pointer)
+return g_strdup_printf ("invalid value given for `%s'",
+G_VALUE_TYPE_NAME (value));
+if (collect_flags & G_VALUE_NOCOPY_CONTENTS) {
+*dest = (GArray *) value->data[0].v_pointer;
+} else {
+*dest = copy_garray_of_gstvalue ((GArray *) value->data[0].v_pointer);
+}
+return NULL;
+}
+/**
+* gst_value_list_append_value:
+* @value: a #GValue of type #GST_TYPE_LIST
+* @append_value: the value to append
+*
+* Appends @append_value to the GstValueList in @value.
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+void
+gst_value_list_append_value (GValue * value, const GValue * append_value)
+{
+GValue val = { 0, };
+g_return_if_fail (GST_VALUE_HOLDS_LIST (value));
+gst_value_init_and_copy (&val, append_value);
+g_array_append_vals ((GArray *) value->data[0].v_pointer, &val, 1);
+}
+/**
+* gst_value_list_prepend_value:
+* @value: a #GValue of type #GST_TYPE_LIST
+* @prepend_value: the value to prepend
+*
+* Prepends @prepend_value to the GstValueList in @value.
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+void
+gst_value_list_prepend_value (GValue * value, const GValue * prepend_value)
+{
+GValue val = { 0, };
+g_return_if_fail (GST_VALUE_HOLDS_LIST (value));
+gst_value_init_and_copy (&val, prepend_value);
+g_array_prepend_vals ((GArray *) value->data[0].v_pointer, &val, 1);
+}
+/**
+* gst_value_list_concat:
+* @dest: an uninitialized #GValue to take the result
+* @value1: a #GValue
+* @value2: a #GValue
+*
+* Concatenates copies of @value1 and @value2 into a list.  Values that are not
+* of type #GST_TYPE_LIST are treated as if they were lists of length 1.
+* @dest will be initialized to the type #GST_TYPE_LIST.
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+void
+gst_value_list_concat (GValue * dest, const GValue * value1,
+const GValue * value2)
+{
+guint i, value1_length, value2_length;
+GArray *array;
+g_return_if_fail (dest != NULL);
+g_return_if_fail (G_VALUE_TYPE (dest) == 0);
+g_return_if_fail (G_IS_VALUE (value1));
+g_return_if_fail (G_IS_VALUE (value2));
+value1_length =
+(GST_VALUE_HOLDS_LIST (value1) ? gst_value_list_get_size (value1) : 1);
+value2_length =
+(GST_VALUE_HOLDS_LIST (value2) ? gst_value_list_get_size (value2) : 1);
+g_value_init (dest, GST_TYPE_LIST);
+array = (GArray *) dest->data[0].v_pointer;
+g_array_set_size (array, value1_length + value2_length);
+if (GST_VALUE_HOLDS_LIST (value1)) {
+for (i = 0; i < value1_length; i++) {
+gst_value_init_and_copy (&g_array_index (array, GValue, i),
+gst_value_list_get_value (value1, i));
+}
+} else {
+gst_value_init_and_copy (&g_array_index (array, GValue, 0), value1);
+}
+if (GST_VALUE_HOLDS_LIST (value2)) {
+for (i = 0; i < value2_length; i++) {
+gst_value_init_and_copy (&g_array_index (array, GValue,
+i + value1_length), gst_value_list_get_value (value2, i));
+}
+} else {
+gst_value_init_and_copy (&g_array_index (array, GValue, value1_length),
+value2);
+}
+}
+/**
+* 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
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+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: the value at the given index
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+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 < gst_value_list_get_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.
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+void
+gst_value_array_append_value (GValue * value, const GValue * append_value)
+{
+GValue val = { 0, };
+g_return_if_fail (GST_VALUE_HOLDS_ARRAY (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.
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+void
+gst_value_array_prepend_value (GValue * value, const GValue * prepend_value)
+{
+GValue val = { 0, };
+g_return_if_fail (GST_VALUE_HOLDS_ARRAY (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
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+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: the value at the given index
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+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 int
+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 int
+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;
+GValue *v1;
+GValue *v2;
+if (array1->len != array2->len)
+return GST_VALUE_UNORDERED;
+for (i = 0; i < array1->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.
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+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.
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+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;
+if (g_ascii_isprint ((fourcc >> 0) & 0xff) &&
+g_ascii_isprint ((fourcc >> 8) & 0xff) &&
+g_ascii_isprint ((fourcc >> 16) & 0xff) &&
+g_ascii_isprint ((fourcc >> 24) & 0xff)) {
+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;
+if (g_ascii_isalnum ((fourcc >> 0) & 0xff) &&
+g_ascii_isalnum ((fourcc >> 8) & 0xff) &&
+g_ascii_isalnum ((fourcc >> 16) & 0xff) &&
+g_ascii_isalnum ((fourcc >> 24) & 0xff)) {
+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 char *s)
+{
+gboolean ret = FALSE;
+guint32 fourcc = 0;
+char *end;
+if (strlen (s) == 4) {
+fourcc = GST_MAKE_FOURCC (s[0], s[1], s[2], s[3]);
+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)
+{
+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.
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+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
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+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
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+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;
+}
+/****************
+* 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)
+{
+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.
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+void
+gst_value_set_double_range (GValue * value, gdouble start, gdouble end)
+{
+g_return_if_fail (GST_VALUE_HOLDS_DOUBLE_RANGE (value));
+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 minumum of the range
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+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
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+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)
+{
+char 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)
+{
+char d1[G_ASCII_DTOSTR_BUF_SIZE];
+char 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;
+value->data[0].v_pointer = vals = g_new0 (GValue, 2);
+g_value_init (&vals[0], GST_TYPE_FRACTION);
+g_value_init (&vals[1], GST_TYPE_FRACTION);
+}
+static void
+gst_value_free_fraction_range (GValue * value)
+{
+GValue *vals = (GValue *) value->data[0].v_pointer;
+if (vals != NULL) {
+g_value_unset (&vals[0]);
+g_value_unset (&vals[1]);
+g_free (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) {
+dest_value->data[0].v_pointer = vals = g_new0 (GValue, 2);
+g_return_if_fail (vals != NULL);
+g_value_init (&vals[0], GST_TYPE_FRACTION);
+g_value_init (&vals[1], GST_TYPE_FRACTION);
+}
+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 (vals == NULL) {
+value->data[0].v_pointer = vals = g_new0 (GValue, 2);
+if (vals == NULL)
+return g_strdup_printf ("Could not initialise`%s' during collect",
+G_VALUE_TYPE_NAME (value));
+g_value_init (&vals[0], GST_TYPE_FRACTION);
+g_value_init (&vals[1], GST_TYPE_FRACTION);
+}
+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)
+{
+int i;
+int *dest_values[4];
+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));
+for (i = 0; i < 4; i++) {
+if (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 (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_denominator (&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.
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+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));
+vals = (GValue *) value->data[0].v_pointer;
+if (vals == NULL) {
+value->data[0].v_pointer = vals = g_new0 (GValue, 2);
+g_value_init (&vals[0], GST_TYPE_FRACTION);
+g_value_init (&vals[1], GST_TYPE_FRACTION);
+}
+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.
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+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_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);
+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 minumum of the range
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+const GValue *
+gst_value_get_fraction_range_min (const GValue * value)
+{
+GValue *vals;
+g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION_RANGE (value), FALSE);
+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
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+const GValue *
+gst_value_get_fraction_range_max (const GValue * value)
+{
+GValue *vals;
+g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION_RANGE (value), FALSE);
+vals = (GValue *) value->data[0].v_pointer;
+if (vals != NULL) {
+return &vals[1];
+}
+return NULL;
+}
+static char *
+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: the caps to set the value to
+*
+* Sets the contents of @value to @caps.  The actual
+* #GstCaps structure is copied before it is used.
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+void
+gst_value_set_caps (GValue * value, const GstCaps * caps)
+{
+g_return_if_fail (G_VALUE_TYPE (value) == GST_TYPE_CAPS);
+g_value_set_boxed (value, caps);
+}
+/**
+* gst_value_get_caps:
+* @value: a GValue initialized to GST_TYPE_CAPS
+*
+* Gets the contents of @value.
+*
+* Returns: the contents of @value
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+const GstCaps *
+gst_value_get_caps (const GValue * value)
+{
+g_return_val_if_fail (G_VALUE_TYPE (value) == GST_TYPE_CAPS, NULL);
+return (GstCaps *) g_value_get_boxed (value);
+}
+static char *
+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_set_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
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+void
+gst_value_set_structure (GValue * value, const GstStructure * structure)
+{
+g_return_if_fail (G_VALUE_TYPE (value) == GST_TYPE_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: the contents of @value
+*
+* Since: 0.10.15
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+const GstStructure *
+gst_value_get_structure (const GValue * value)
+{
+g_return_val_if_fail (G_VALUE_TYPE (value) == GST_TYPE_STRUCTURE, NULL);
+return (GstStructure *) g_value_get_boxed (value);
+}
+static char *
+gst_value_serialize_structure (const GValue * value)
+{
+GstStructure *structure = g_value_get_boxed (value);
+return gst_structure_to_string (structure);
+}
+static gboolean
+gst_value_deserialize_structure (GValue * dest, const gchar * s)
+{
+GstStructure *structure;
+structure = gst_structure_from_string (s, NULL);
+if (structure) {
+g_value_set_boxed (dest, structure);
+return TRUE;
+}
+return FALSE;
+}
+/*************
+* GstBuffer *
+*************/
+static int
+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 char *
+gst_value_serialize_buffer (const GValue * value)
+{
+guint8 *data;
+int i;
+int size;
+char *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;
+int len;
+char ts[3];
+guint8 *data;
+int 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 int
+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 char *
+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 char *                                                           \
+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;
+char *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;                                                             \
+char *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);
+/**********
+* double *
+**********/
+static int
+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 char *
+gst_value_serialize_double (const GValue * value)
+{
+char 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)
+{
+double x;
+gboolean ret = FALSE;
+char *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)
+{
+double x;
+gboolean ret = FALSE;
+char *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)
+{
+int 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;
+}
+/* keep in sync with gststructure.c */
+#define GST_ASCII_IS_STRING(c) (g_ascii_isalnum((c)) || ((c) == '_') || \
+((c) == '-') || ((c) == '+') || ((c) == '/') || ((c) == ':') || \
+((c) == '.'))
+static gchar *
+gst_string_wrap (const gchar * s)
+{
+const gchar *t;
+int len;
+gchar *d, *e;
+gboolean wrap = FALSE;
+len = 0;
+t = s;
+if (!s)
+return NULL;
+while (*t) {
+if (GST_ASCII_IS_STRING (*t)) {
+len++;
+} else if (*t < 0x20 || *t >= 0x7f) {
+wrap = TRUE;
+len += 4;
+} else {
+wrap = TRUE;
+len += 2;
+}
+t++;
+}
+if (!wrap)
+return g_strdup (s);
+e = d = g_malloc (len + 3);
+*e++ = '\"';
+t = s;
+while (*t) {
+if (GST_ASCII_IS_STRING (*t)) {
+*e++ = *t++;
+} else if (*t < 0x20 || *t >= 0x7f) {
+*e++ = '\\';
+*e++ = '0' + ((*(guchar *) t) >> 6);
+*e++ = '0' + (((*t) >> 3) & 0x7);
+*e++ = '0' + ((*t++) & 0x7);
+} else {
+*e++ = '\\';
+*e++ = *t++;
+}
+}
+*e++ = '\"';
+*e = 0;
+return d;
+}
+/*
+* 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 definately 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 (*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 (!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 (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) {
+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) {
+g_value_init (dest, GST_TYPE_INT_RANGE);
+gst_value_set_int_range (dest, min, max);
+return TRUE;
+}
+if (min == max) {
+g_value_init (dest, G_TYPE_INT);
+g_value_set_int (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) {
+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) {
+g_value_init (dest, GST_TYPE_DOUBLE_RANGE);
+gst_value_set_double_range (dest, min, max);
+return TRUE;
+}
+if (min == max) {
+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 = gst_value_list_get_size (value1);
+for (i = 0; i < size; i++) {
+const GValue *cur = gst_value_list_get_value (value1, i);
+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_concat (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;
+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)
+{
+int 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)) {
+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;
+int 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) {
+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) {
+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)
+{
+int min = gst_value_get_int_range_min (subtrahend);
+int max = gst_value_get_int_range_max (subtrahend);
+int 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 */
+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 (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) {
+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++;
+}
+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_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) {
+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 */
+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 (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;
+size = gst_value_list_get_size (minuend);
+for (i = 0; i < size; i++) {
+const GValue *cur = gst_value_list_get_value (minuend, i);
+if (gst_value_subtract (&subtraction, cur, subtrahend)) {
+if (!ret) {
+gst_value_init_and_copy (dest, &subtraction);
+ret = TRUE;
+} else if (GST_VALUE_HOLDS_LIST (dest)
+&& GST_VALUE_HOLDS_LIST (&subtraction)) {
+/* unroll */
+GValue unroll = { 0, };
+gst_value_init_and_copy (&unroll, dest);
+g_value_unset (dest);
+gst_value_list_concat (dest, &unroll, &subtraction);
+} else if (GST_VALUE_HOLDS_LIST (dest)) {
+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 = gst_value_list_get_size (subtrahend);
+for (i = 0; i < size; i++) {
+const GValue *cur = gst_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;
+}
+}
+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 */
+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 */
+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);
+int 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 (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_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
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+gboolean
+gst_value_can_compare (const GValue * value1, const GValue * value2)
+{
+GstValueTable *table;
+guint i;
+if (G_VALUE_TYPE (value1) != G_VALUE_TYPE (value2))
+return FALSE;
+for (i = 0; i < gst_value_table->len; i++) {
+table = &g_array_index (gst_value_table, GstValueTable, i);
+if (g_type_is_a (G_VALUE_TYPE (value1), table->type) && table->compare)
+return TRUE;
+}
+return FALSE;
+}
+/*
+* 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;
+for (i = 0; i < gst_value_table->len; i++) {
+table = &g_array_index (gst_value_table, GstValueTable, i);
+if (table->type == G_VALUE_TYPE (value1) && table->compare != NULL) {
+best = table;
+break;
+}
+if (g_type_is_a (G_VALUE_TYPE (value1), table->type)) {
+if (!best || g_type_is_a (table->type, best->type))
+best = table;
+}
+}
+if (best) {
+return best->compare;
+}
+return NULL;
+}
+/**
+* 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: A #GstValueCompareType value
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+gint
+gst_value_compare (const GValue * value1, const GValue * value2)
+{
+GstValueCompareFunc compare;
+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: A #GstValueCompareType value
+*/
+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.
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+gboolean
+gst_value_can_union (const GValue * value1, const GValue * value2)
+{
+GstValueUnionInfo *union_info;
+guint i;
+for (i = 0; i < gst_value_union_funcs->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: the destination value
+* @value1: a value to union
+* @value2: another value to union
+*
+* Creates a GValue cooresponding to the union of @value1 and @value2.
+*
+* Returns: always returns %TRUE
+*/
+/* FIXME: change return type to 'void'? */
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+gboolean
+gst_value_union (GValue * dest, const GValue * value1, const GValue * value2)
+{
+GstValueUnionInfo *union_info;
+guint i;
+for (i = 0; i < gst_value_union_funcs->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 implments creating a union between the two types
+*
+* Registers a union function that can create a union between GValues
+* 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().
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+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_intersection_func()) to calculate the intersection.
+*
+* Returns: TRUE if the values can intersect
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+gboolean
+gst_value_can_intersect (const GValue * value1, const GValue * value2)
+{
+GstValueIntersectInfo *intersect_info;
+guint i;
+/* special cases */
+if (GST_VALUE_HOLDS_LIST (value1) || GST_VALUE_HOLDS_LIST (value2))
+return TRUE;
+for (i = 0; i < gst_value_intersect_funcs->len; i++) {
+intersect_info = &g_array_index (gst_value_intersect_funcs,
+GstValueIntersectInfo, i);
+if (intersect_info->type1 == G_VALUE_TYPE (value1) &&
+intersect_info->type2 == G_VALUE_TYPE (value2))
+if (intersect_info->type2 == G_VALUE_TYPE (value1) &&
+intersect_info->type1 == G_VALUE_TYPE (value2))
+return TRUE;
+}
+return gst_value_can_compare (value1, value2);
+}
+/**
+* gst_value_intersect:
+* @dest: a uninitialized #GValue that will hold the calculated
+* intersection value
+* @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.  If the intersection is non-empty, @dest is
+* not modified.
+*
+* Returns: TRUE if the intersection is non-empty
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+gboolean
+gst_value_intersect (GValue * dest, const GValue * value1,
+const GValue * value2)
+{
+GstValueIntersectInfo *intersect_info;
+guint i;
+gboolean ret = FALSE;
+/* special cases first */
+if (GST_VALUE_HOLDS_LIST (value1))
+return gst_value_intersect_list (dest, value1, value2);
+if (GST_VALUE_HOLDS_LIST (value2))
+return gst_value_intersect_list (dest, value2, value1);
+for (i = 0; i < gst_value_intersect_funcs->len; i++) {
+intersect_info = &g_array_index (gst_value_intersect_funcs,
+GstValueIntersectInfo, i);
+if (intersect_info->type1 == G_VALUE_TYPE (value1) &&
+intersect_info->type2 == G_VALUE_TYPE (value2)) {
+ret = intersect_info->func (dest, value1, value2);
+return ret;
+}
+if (intersect_info->type1 == G_VALUE_TYPE (value2) &&
+intersect_info->type2 == G_VALUE_TYPE (value1)) {
+ret = intersect_info->func (dest, value2, value1);
+return ret;
+}
+}
+if (gst_value_compare (value1, value2) == GST_VALUE_EQUAL) {
+gst_value_init_and_copy (dest, value1);
+ret = TRUE;
+}
+return ret;
+}
+/**
+* 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().
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+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: the destination value for the result if the subtraction is not empty
+* @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
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+gboolean
+gst_value_subtract (GValue * dest, const GValue * minuend,
+const GValue * subtrahend)
+{
+GstValueSubtractInfo *info;
+guint i;
+/* special cases first */
+if (GST_VALUE_HOLDS_LIST (minuend))
+return gst_value_subtract_from_list (dest, minuend, subtrahend);
+if (GST_VALUE_HOLDS_LIST (subtrahend))
+return gst_value_subtract_list (dest, minuend, subtrahend);
+for (i = 0; i < gst_value_subtract_funcs->len; i++) {
+info = &g_array_index (gst_value_subtract_funcs, GstValueSubtractInfo, i);
+if (info->minuend == G_VALUE_TYPE (minuend) &&
+info->subtrahend == G_VALUE_TYPE (subtrahend)) {
+return info->func (dest, minuend, subtrahend);
+}
+}
+if (gst_value_compare (minuend, subtrahend) != GST_VALUE_EQUAL) {
+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
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+gboolean
+gst_value_can_subtract (const GValue * minuend, const GValue * subtrahend)
+{
+GstValueSubtractInfo *info;
+guint i;
+/* special cases */
+if (GST_VALUE_HOLDS_LIST (minuend) || GST_VALUE_HOLDS_LIST (subtrahend))
+return TRUE;
+for (i = 0; i < gst_value_subtract_funcs->len; i++) {
+info = &g_array_index (gst_value_subtract_funcs, GstValueSubtractInfo, i);
+if (info->minuend == G_VALUE_TYPE (minuend) &&
+info->subtrahend == G_VALUE_TYPE (subtrahend))
+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().
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+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 #GValues of a given
+* type.
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+void
+gst_value_register (const GstValueTable * table)
+{
+g_array_append_val (gst_value_table, *table);
+}
+/**
+* gst_value_init_and_copy:
+* @dest: 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.
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+void
+gst_value_init_and_copy (GValue * dest, const GValue * src)
+{
+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().
+*
+* Returns: the serialization for @value or NULL if none exists
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+gchar *
+gst_value_serialize (const GValue * value)
+{
+guint i;
+GValue s_val = { 0 };
+GstValueTable *table, *best = NULL;
+char *s;
+g_return_val_if_fail (G_IS_VALUE (value), NULL);
+for (i = 0; i < gst_value_table->len; i++) {
+table = &g_array_index (gst_value_table, GstValueTable, i);
+if (table->serialize == NULL)
+continue;
+if (table->type == G_VALUE_TYPE (value)) {
+best = table;
+break;
+}
+if (g_type_is_a (G_VALUE_TYPE (value), table->type)) {
+if (!best || g_type_is_a (table->type, best->type))
+best = table;
+}
+}
+if (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: #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
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+gboolean
+gst_value_deserialize (GValue * dest, const gchar * src)
+{
+GstValueTable *table, *best = NULL;
+guint i;
+g_return_val_if_fail (src != NULL, FALSE);
+g_return_val_if_fail (G_IS_VALUE (dest), FALSE);
+for (i = 0; i < gst_value_table->len; i++) {
+table = &g_array_index (gst_value_table, GstValueTable, i);
+if (table->serialize == NULL)
+continue;
+if (table->type == G_VALUE_TYPE (dest)) {
+best = table;
+break;
+}
+if (g_type_is_a (G_VALUE_TYPE (dest), table->type)) {
+if (!best || g_type_is_a (table->type, best->type))
+best = table;
+}
+}
+if (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".
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+gboolean
+gst_value_is_fixed (const GValue * value)
+{
+GType type = G_VALUE_TYPE (value);
+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 */
+/* Finds the greatest common divisor.
+* Returns 1 if none other found.
+* This is Euclid's algorithm. */
+static gint
+gst_greatest_common_divisor (gint a, gint b)
+{
+while (b != 0) {
+int temp = a;
+a = b;
+b = temp % b;
+}
+return ABS (a);
+}
+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)
+{
+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.
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+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_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.
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+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.
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+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 GValues containing a GstFraction and sets @product
+* to the product of the two fractions.
+*
+* Returns: FALSE in case of an error (like integer overflow), TRUE otherwise.
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+gboolean
+gst_value_fraction_multiply (GValue * product, const GValue * factor1,
+const GValue * factor2)
+{
+gint gcd, n1, n2, d1, d2;
+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;
+gcd = gst_greatest_common_divisor (n1, d2);
+n1 /= gcd;
+d2 /= gcd;
+gcd = gst_greatest_common_divisor (n2, d1);
+n2 /= gcd;
+d1 /= gcd;
+g_return_val_if_fail (n1 == 0 || G_MAXINT / ABS (n1) >= ABS (n2), FALSE);
+g_return_val_if_fail (G_MAXINT / ABS (d1) >= ABS (d2), FALSE);
+gst_value_set_fraction (product, n1 * n2, d1 * d2);
+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.
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+gboolean
+gst_value_fraction_subtract (GValue * dest,
+const GValue * minuend, const GValue * subtrahend)
+{
+gint n1, n2, d1, d2;
+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 (n1 == 0) {
+gst_value_set_fraction (dest, -n2, d2);
+return TRUE;
+}
+if (n2 == 0) {
+gst_value_set_fraction (dest, n1, d1);
+return TRUE;
+}
+g_return_val_if_fail (n1 == 0 || G_MAXINT / ABS (n1) >= ABS (d2), FALSE);
+g_return_val_if_fail (G_MAXINT / ABS (d1) >= ABS (n2), FALSE);
+g_return_val_if_fail (G_MAXINT / ABS (d1) >= ABS (d2), FALSE);
+gst_value_set_fraction (dest, (n1 * d2) - (n2 * d1), d1 * d2);
+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;
+if (G_UNLIKELY (s == NULL))
+return FALSE;
+if (G_UNLIKELY (dest == NULL || !GST_VALUE_HOLDS_FRACTION (dest)))
+return FALSE;
+if (sscanf (s, "%d/%d", &num, &den) == 2) {
+gst_value_set_fraction (dest, num, den);
+return TRUE;
+}
+if (sscanf (s, "%d", &num) == 1) {
+gst_value_set_fraction (dest, num, 1);
+return TRUE;
+}
+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);
+}
+#define MAX_TERMS       30
+#define MIN_DIVISOR     1.0e-10
+#define MAX_ERROR       1.0e-20
+/* use continued fractions to transform a double into a fraction,
+* see http://mathforum.org/dr.math/faq/faq.fractions.html#decfrac.
+* This algorithm takes care of overflows.
+*/
+static void
+gst_value_transform_double_fraction (const GValue * src_value,
+GValue * dest_value)
+{
+gdouble V, F;                 /* double being converted */
+gint N, D;                    /* will contain the result */
+gint A;                       /* current term in continued fraction */
+gint64 N1, D1;                /* numerator, denominator of last approx */
+gint64 N2, D2;                /* numerator, denominator of previous approx */
+gint i;
+gboolean negative = FALSE;
+/* initialize fraction being converted */
+F = src_value->data[0].v_double;
+if (F < 0.0) {
+F = -F;
+negative = TRUE;
+}
+V = F;
+/* initialize fractions with 1/0, 0/1 */
+N1 = 1;
+D1 = 0;
+N2 = 0;
+D2 = 1;
+N = 1;
+D = 1;
+for (i = 0; i < MAX_TERMS; i++) {
+/* get next term */
+A = (gint) F;               /* no floor() needed, F is always >= 0 */
+/* get new divisor */
+F = F - A;
+/* calculate new fraction in temp */
+N2 = N1 * A + N2;
+D2 = D1 * A + D2;
+/* guard against overflow */
+if (N2 > G_MAXINT || D2 > G_MAXINT) {
+break;
+}
+N = N2;
+D = D2;
+/* save last two fractions */
+N2 = N1;
+D2 = D1;
+N1 = N;
+D1 = D;
+/* quit if dividing by zero or close enough to target */
+if (F < MIN_DIVISOR || fabs (V - ((gdouble) N) / D) < MAX_ERROR) {
+break;
+}
+/* Take reciprocal */
+F = 1 / F;
+}
+/* fix for overflow */
+if (D == 0) {
+N = G_MAXINT;
+D = 1;
+}
+/* fix for negative */
+if (negative)
+N = -N;
+/* will also simplify */
+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 gint
+gst_value_compare_fraction (const GValue * value1, const GValue * value2)
+{
+gint n1, n2;
+gint d1, d2;
+gint64 new_num_1;
+gint64 new_num_2;
+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;
+/* extend to 64 bits */
+new_num_1 = ((gint64) n1) * d2;
+new_num_2 = ((gint64) n2) * d1;
+if (new_num_1 < new_num_2)
+return GST_VALUE_LESS_THAN;
+if (new_num_1 > new_num_2)
+return GST_VALUE_GREATER_THAN;
+/* new_num_1 == new_num_2 implies that both denominators must have
+* been 0, beause otherwise simplification would have caught the
+* equivalence */
+return 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 coorespond to @date.  The actual
+* #GDate structure is copied before it is used.
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+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: the contents of @value
+*/
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+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 char *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;
+}
+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);
+str = obj ? GST_OBJECT_NAME (obj) : "NULL";
+dest_value->data[0].v_pointer = g_strdup (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)                         \
+__declspec(dllexport)	GType gst_ ## type ## _get_type (void)                          \
+{                                                               \
+static GType gst_ ## type ## _type = 0;                       \
+\
+if (G_UNLIKELY (gst_ ## type ## _type == 0)) {		\
+_info.value_table = & _gst_ ## type ## _value_table;        \
+gst_ ## type ## _type = g_type_register_fundamental (       \
+g_type_fundamental_next (),                             \
+name, &_info, &_finfo, 0);                              \
+}                                                             \
+\
+return gst_ ## type ## _type;                                 \
+}
+static const GTypeValueTable _gst_fourcc_value_table = {
+gst_value_init_fourcc,
+NULL,
+gst_value_copy_fourcc,
+NULL,
+"i",
+gst_value_collect_fourcc,
+"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,
+"ii",
+gst_value_collect_int_range,
+"pp",
+gst_value_lcopy_int_range
+};
+FUNC_VALUE_GET_TYPE (int_range, "GstIntRange");
+static const GTypeValueTable _gst_double_range_value_table = {
+gst_value_init_double_range,
+NULL,
+gst_value_copy_double_range,
+NULL,
+"dd",
+gst_value_collect_double_range,
+"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,
+"iiii",
+gst_value_collect_fraction_range,
+"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,
+"p",
+gst_value_collect_list_or_array,
+"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,
+"p",
+gst_value_collect_list_or_array,
+"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,
+"ii",
+gst_value_collect_fraction,
+"pp",
+gst_value_lcopy_fraction
+};
+FUNC_VALUE_GET_TYPE (fraction, "GstFraction");
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+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;
+}
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+void
+_gst_value_initialize (void)
+{
+gst_value_table = g_array_new (FALSE, FALSE, sizeof (GstValueTable));
+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_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);
+}
+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);
+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_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 (G_TYPE_DOUBLE, GST_TYPE_FRACTION,
+gst_value_transform_double_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_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_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
+}

changeset 0	0e761a78d257
child 8	4a7fac7dd34a