2 * Copyright (C) <2003> David A. Schleef <ds@schleef.org>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
22 * @short_description: GValue implementations specific
25 * GValue implementations specific to GStreamer.
27 * Note that operations on the same #GValue from multiple threads may lead to
28 * undefined behaviour.
30 * Last reviewed on 2008-03-11 (0.10.18)
42 #include "gst_private.h"
43 #include "glib-compat-private.h"
45 #include <gobject/gvaluecollector.h>
48 typedef struct _GstValueUnionInfo GstValueUnionInfo;
49 struct _GstValueUnionInfo
53 GstValueUnionFunc func;
56 typedef struct _GstValueIntersectInfo GstValueIntersectInfo;
57 struct _GstValueIntersectInfo
61 GstValueIntersectFunc func;
64 typedef struct _GstValueSubtractInfo GstValueSubtractInfo;
65 struct _GstValueSubtractInfo
69 GstValueSubtractFunc func;
72 #define FUNDAMENTAL_TYPE_ID_MAX \
73 (G_TYPE_FUNDAMENTAL_MAX >> G_TYPE_FUNDAMENTAL_SHIFT)
74 #define FUNDAMENTAL_TYPE_ID(type) \
75 ((type) >> G_TYPE_FUNDAMENTAL_SHIFT)
77 #define VALUE_LIST_SIZE(v) (((GArray *) (v)->data[0].v_pointer)->len)
78 #define VALUE_LIST_GET_VALUE(v, index) ((const GValue *) &g_array_index ((GArray *) (v)->data[0].v_pointer, GValue, (index)))
80 static GArray *gst_value_table;
81 static GHashTable *gst_value_hash;
82 static GstValueTable *gst_value_tables_fundamental[FUNDAMENTAL_TYPE_ID_MAX + 1];
83 static GArray *gst_value_union_funcs;
84 static GArray *gst_value_intersect_funcs;
85 static GArray *gst_value_subtract_funcs;
87 /* Forward declarations */
88 static gchar *gst_value_serialize_fraction (const GValue * value);
90 static GstValueCompareFunc gst_value_get_compare_func (const GValue * value1);
91 static gint gst_value_compare_with_func (const GValue * value1,
92 const GValue * value2, GstValueCompareFunc compare);
94 static gchar *gst_string_wrap (const gchar * s);
95 static gchar *gst_string_take_and_wrap (gchar * s);
96 static gchar *gst_string_unwrap (const gchar * s);
98 static inline GstValueTable *
99 gst_value_hash_lookup_type (GType type)
101 if (G_LIKELY (G_TYPE_IS_FUNDAMENTAL (type)))
102 return gst_value_tables_fundamental[FUNDAMENTAL_TYPE_ID (type)];
104 return g_hash_table_lookup (gst_value_hash, (gpointer) type);
108 gst_value_hash_add_type (GType type, const GstValueTable * table)
110 if (G_TYPE_IS_FUNDAMENTAL (type))
111 gst_value_tables_fundamental[FUNDAMENTAL_TYPE_ID (type)] = (gpointer) table;
113 g_hash_table_insert (gst_value_hash, (gpointer) type, (gpointer) table);
120 /* two helper functions to serialize/stringify any type of list
121 * regular lists are done with { }, arrays with < >
124 gst_value_serialize_any_list (const GValue * value, const gchar * begin,
128 GArray *array = value->data[0].v_pointer;
132 guint alen = array->len;
134 /* estimate minimum string length to minimise re-allocs in GString */
135 s = g_string_sized_new (2 + (6 * alen) + 2);
136 g_string_append (s, begin);
137 for (i = 0; i < alen; i++) {
138 v = &g_array_index (array, GValue, i);
139 s_val = gst_value_serialize (v);
140 g_string_append (s, s_val);
143 g_string_append_len (s, ", ", 2);
146 g_string_append (s, end);
147 return g_string_free (s, FALSE);
151 gst_value_transform_any_list_string (const GValue * src_value,
152 GValue * dest_value, const gchar * begin, const gchar * end)
161 array = src_value->data[0].v_pointer;
164 /* estimate minimum string length to minimise re-allocs in GString */
165 s = g_string_sized_new (2 + (10 * alen) + 2);
166 g_string_append (s, begin);
167 for (i = 0; i < alen; i++) {
168 list_value = &g_array_index (array, GValue, i);
171 g_string_append_len (s, ", ", 2);
173 list_s = g_strdup_value_contents (list_value);
174 g_string_append (s, list_s);
177 g_string_append (s, end);
179 dest_value->data[0].v_pointer = g_string_free (s, FALSE);
183 * helper function to see if a type is fixed. Is used internally here and
184 * there. Do not export, since it doesn't work for types where the content
185 * decides the fixedness (e.g. GST_TYPE_ARRAY).
188 gst_type_is_fixed (GType type)
190 /* the basic int, string, double types */
191 if (type <= G_TYPE_MAKE_FUNDAMENTAL (G_TYPE_RESERVED_GLIB_LAST)) {
194 /* our fundamental types that are certainly not fixed */
195 if (type == GST_TYPE_INT_RANGE || type == GST_TYPE_DOUBLE_RANGE ||
196 type == GST_TYPE_INT64_RANGE ||
197 type == GST_TYPE_LIST || type == GST_TYPE_FRACTION_RANGE) {
200 /* other (boxed) types that are fixed */
201 if (type == GST_TYPE_BUFFER) {
205 if (G_TYPE_IS_FUNDAMENTAL (type) || G_TYPE_FUNDAMENTAL (type) <=
206 G_TYPE_MAKE_FUNDAMENTAL (G_TYPE_RESERVED_GLIB_LAST)) {
213 /* GValue functions usable for both regular lists and arrays */
215 gst_value_init_list_or_array (GValue * value)
217 value->data[0].v_pointer = g_array_new (FALSE, TRUE, sizeof (GValue));
221 copy_garray_of_gstvalue (const GArray * src)
227 dest = g_array_sized_new (FALSE, TRUE, sizeof (GValue), len);
228 g_array_set_size (dest, len);
229 for (i = 0; i < len; i++) {
230 gst_value_init_and_copy (&g_array_index (dest, GValue, i),
231 &g_array_index (src, GValue, i));
238 gst_value_copy_list_or_array (const GValue * src_value, GValue * dest_value)
240 dest_value->data[0].v_pointer =
241 copy_garray_of_gstvalue ((GArray *) src_value->data[0].v_pointer);
245 gst_value_free_list_or_array (GValue * value)
248 GArray *src = (GArray *) value->data[0].v_pointer;
251 if ((value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS) == 0) {
252 for (i = 0; i < len; i++) {
253 g_value_unset (&g_array_index (src, GValue, i));
255 g_array_free (src, TRUE);
260 gst_value_list_or_array_peek_pointer (const GValue * value)
262 return value->data[0].v_pointer;
266 gst_value_collect_list_or_array (GValue * value, guint n_collect_values,
267 GTypeCValue * collect_values, guint collect_flags)
269 if (collect_flags & G_VALUE_NOCOPY_CONTENTS) {
270 value->data[0].v_pointer = collect_values[0].v_pointer;
271 value->data[1].v_uint = G_VALUE_NOCOPY_CONTENTS;
273 value->data[0].v_pointer =
274 copy_garray_of_gstvalue ((GArray *) collect_values[0].v_pointer);
280 gst_value_lcopy_list_or_array (const GValue * value, guint n_collect_values,
281 GTypeCValue * collect_values, guint collect_flags)
283 GArray **dest = collect_values[0].v_pointer;
286 return g_strdup_printf ("value location for `%s' passed as NULL",
287 G_VALUE_TYPE_NAME (value));
288 if (!value->data[0].v_pointer)
289 return g_strdup_printf ("invalid value given for `%s'",
290 G_VALUE_TYPE_NAME (value));
291 if (collect_flags & G_VALUE_NOCOPY_CONTENTS) {
292 *dest = (GArray *) value->data[0].v_pointer;
294 *dest = copy_garray_of_gstvalue ((GArray *) value->data[0].v_pointer);
300 * gst_value_list_append_value:
301 * @value: a #GValue of type #GST_TYPE_LIST
302 * @append_value: the value to append
304 * Appends @append_value to the GstValueList in @value.
307 gst_value_list_append_value (GValue * value, const GValue * append_value)
311 g_return_if_fail (GST_VALUE_HOLDS_LIST (value));
312 g_return_if_fail (G_IS_VALUE (append_value));
314 gst_value_init_and_copy (&val, append_value);
315 g_array_append_vals ((GArray *) value->data[0].v_pointer, &val, 1);
319 * gst_value_list_prepend_value:
320 * @value: a #GValue of type #GST_TYPE_LIST
321 * @prepend_value: the value to prepend
323 * Prepends @prepend_value to the GstValueList in @value.
326 gst_value_list_prepend_value (GValue * value, const GValue * prepend_value)
330 g_return_if_fail (GST_VALUE_HOLDS_LIST (value));
331 g_return_if_fail (G_IS_VALUE (prepend_value));
333 gst_value_init_and_copy (&val, prepend_value);
334 g_array_prepend_vals ((GArray *) value->data[0].v_pointer, &val, 1);
338 * gst_value_list_concat:
339 * @dest: (out caller-allocates): an uninitialized #GValue to take the result
343 * Concatenates copies of @value1 and @value2 into a list. Values that are not
344 * of type #GST_TYPE_LIST are treated as if they were lists of length 1.
345 * @dest will be initialized to the type #GST_TYPE_LIST.
348 gst_value_list_concat (GValue * dest, const GValue * value1,
349 const GValue * value2)
351 guint i, value1_length, value2_length;
354 g_return_if_fail (dest != NULL);
355 g_return_if_fail (G_VALUE_TYPE (dest) == 0);
356 g_return_if_fail (G_IS_VALUE (value1));
357 g_return_if_fail (G_IS_VALUE (value2));
360 (GST_VALUE_HOLDS_LIST (value1) ? VALUE_LIST_SIZE (value1) : 1);
362 (GST_VALUE_HOLDS_LIST (value2) ? VALUE_LIST_SIZE (value2) : 1);
363 g_value_init (dest, GST_TYPE_LIST);
364 array = (GArray *) dest->data[0].v_pointer;
365 g_array_set_size (array, value1_length + value2_length);
367 if (GST_VALUE_HOLDS_LIST (value1)) {
368 for (i = 0; i < value1_length; i++) {
369 gst_value_init_and_copy (&g_array_index (array, GValue, i),
370 VALUE_LIST_GET_VALUE (value1, i));
373 gst_value_init_and_copy (&g_array_index (array, GValue, 0), value1);
376 if (GST_VALUE_HOLDS_LIST (value2)) {
377 for (i = 0; i < value2_length; i++) {
378 gst_value_init_and_copy (&g_array_index (array, GValue,
379 i + value1_length), VALUE_LIST_GET_VALUE (value2, i));
382 gst_value_init_and_copy (&g_array_index (array, GValue, value1_length),
388 * gst_value_list_merge:
389 * @dest: (out caller-allocates): an uninitialized #GValue to take the result
393 * Merges copies of @value1 and @value2. Values that are not
394 * of type #GST_TYPE_LIST are treated as if they were lists of length 1.
396 * The result will be put into @dest and will either be a list that will not
397 * contain any duplicates, or a non-list type (if @value1 and @value2
403 gst_value_list_merge (GValue * dest, const GValue * value1,
404 const GValue * value2)
406 guint i, j, k, value1_length, value2_length, skipped;
411 g_return_if_fail (dest != NULL);
412 g_return_if_fail (G_VALUE_TYPE (dest) == 0);
413 g_return_if_fail (G_IS_VALUE (value1));
414 g_return_if_fail (G_IS_VALUE (value2));
417 (GST_VALUE_HOLDS_LIST (value1) ? VALUE_LIST_SIZE (value1) : 1);
419 (GST_VALUE_HOLDS_LIST (value2) ? VALUE_LIST_SIZE (value2) : 1);
420 g_value_init (dest, GST_TYPE_LIST);
421 array = (GArray *) dest->data[0].v_pointer;
422 g_array_set_size (array, value1_length + value2_length);
424 if (GST_VALUE_HOLDS_LIST (value1)) {
425 for (i = 0; i < value1_length; i++) {
426 gst_value_init_and_copy (&g_array_index (array, GValue, i),
427 VALUE_LIST_GET_VALUE (value1, i));
430 gst_value_init_and_copy (&g_array_index (array, GValue, 0), value1);
435 if (GST_VALUE_HOLDS_LIST (value2)) {
436 for (i = 0; i < value2_length; i++) {
438 src = VALUE_LIST_GET_VALUE (value2, i);
439 for (k = 0; k < value1_length; k++) {
440 if (gst_value_compare (&g_array_index (array, GValue, k),
441 src) == GST_VALUE_EQUAL) {
448 gst_value_init_and_copy (&g_array_index (array, GValue, j), src);
454 for (k = 0; k < value1_length; k++) {
455 if (gst_value_compare (&g_array_index (array, GValue, k),
456 value2) == GST_VALUE_EQUAL) {
463 gst_value_init_and_copy (&g_array_index (array, GValue, j), value2);
467 guint new_size = value1_length + (value2_length - skipped);
471 g_array_set_size (array, new_size);
475 /* size is 1, take single value in list and make it new dest */
476 single_dest = g_array_index (array, GValue, 0);
478 /* clean up old value allocations: must set array size to 0, because
479 * allocated values are not inited meaning g_value_unset() will not
481 g_array_set_size (array, 0);
482 g_value_unset (dest);
484 /* the single value is our new result */
491 * gst_value_list_get_size:
492 * @value: a #GValue of type #GST_TYPE_LIST
494 * Gets the number of values contained in @value.
496 * Returns: the number of values
499 gst_value_list_get_size (const GValue * value)
501 g_return_val_if_fail (GST_VALUE_HOLDS_LIST (value), 0);
503 return ((GArray *) value->data[0].v_pointer)->len;
507 * gst_value_list_get_value:
508 * @value: a #GValue of type #GST_TYPE_LIST
509 * @index: index of value to get from the list
511 * Gets the value that is a member of the list contained in @value and
512 * has the index @index.
514 * Returns: (transfer none): the value at the given index
517 gst_value_list_get_value (const GValue * value, guint index)
519 g_return_val_if_fail (GST_VALUE_HOLDS_LIST (value), NULL);
520 g_return_val_if_fail (index < VALUE_LIST_SIZE (value), NULL);
522 return (const GValue *) &g_array_index ((GArray *) value->data[0].v_pointer,
527 * gst_value_array_append_value:
528 * @value: a #GValue of type #GST_TYPE_ARRAY
529 * @append_value: the value to append
531 * Appends @append_value to the GstValueArray in @value.
534 gst_value_array_append_value (GValue * value, const GValue * append_value)
538 g_return_if_fail (GST_VALUE_HOLDS_ARRAY (value));
539 g_return_if_fail (G_IS_VALUE (append_value));
541 gst_value_init_and_copy (&val, append_value);
542 g_array_append_vals ((GArray *) value->data[0].v_pointer, &val, 1);
546 * gst_value_array_prepend_value:
547 * @value: a #GValue of type #GST_TYPE_ARRAY
548 * @prepend_value: the value to prepend
550 * Prepends @prepend_value to the GstValueArray in @value.
553 gst_value_array_prepend_value (GValue * value, const GValue * prepend_value)
557 g_return_if_fail (GST_VALUE_HOLDS_ARRAY (value));
558 g_return_if_fail (G_IS_VALUE (prepend_value));
560 gst_value_init_and_copy (&val, prepend_value);
561 g_array_prepend_vals ((GArray *) value->data[0].v_pointer, &val, 1);
565 * gst_value_array_get_size:
566 * @value: a #GValue of type #GST_TYPE_ARRAY
568 * Gets the number of values contained in @value.
570 * Returns: the number of values
573 gst_value_array_get_size (const GValue * value)
575 g_return_val_if_fail (GST_VALUE_HOLDS_ARRAY (value), 0);
577 return ((GArray *) value->data[0].v_pointer)->len;
581 * gst_value_array_get_value:
582 * @value: a #GValue of type #GST_TYPE_ARRAY
583 * @index: index of value to get from the array
585 * Gets the value that is a member of the array contained in @value and
586 * has the index @index.
588 * Returns: (transfer none): the value at the given index
591 gst_value_array_get_value (const GValue * value, guint index)
593 g_return_val_if_fail (GST_VALUE_HOLDS_ARRAY (value), NULL);
594 g_return_val_if_fail (index < gst_value_array_get_size (value), NULL);
596 return (const GValue *) &g_array_index ((GArray *) value->data[0].v_pointer,
601 gst_value_transform_list_string (const GValue * src_value, GValue * dest_value)
603 gst_value_transform_any_list_string (src_value, dest_value, "{ ", " }");
607 gst_value_transform_array_string (const GValue * src_value, GValue * dest_value)
609 gst_value_transform_any_list_string (src_value, dest_value, "< ", " >");
612 /* Do an unordered compare of the contents of a list */
614 gst_value_compare_list (const GValue * value1, const GValue * value2)
617 GArray *array1 = value1->data[0].v_pointer;
618 GArray *array2 = value2->data[0].v_pointer;
623 GstValueCompareFunc compare;
625 /* get length and do initial length check. */
627 if (len != array2->len)
628 return GST_VALUE_UNORDERED;
630 /* place to mark removed value indices of array2 */
631 removed = g_newa (guint8, len);
632 memset (removed, 0, len);
635 /* loop over array1, all items should be in array2. When we find an
636 * item in array2, remove it from array2 by marking it as removed */
637 for (i = 0; i < len; i++) {
638 v1 = &g_array_index (array1, GValue, i);
639 if ((compare = gst_value_get_compare_func (v1))) {
640 for (j = 0; j < len; j++) {
641 /* item is removed, we can skip it */
644 v2 = &g_array_index (array2, GValue, j);
645 if (gst_value_compare_with_func (v1, v2, compare) == GST_VALUE_EQUAL) {
646 /* mark item as removed now that we found it in array2 and
647 * decrement the number of remaining items in array2. */
653 /* item in array1 and not in array2, UNORDERED */
655 return GST_VALUE_UNORDERED;
657 return GST_VALUE_UNORDERED;
659 /* if not all items were removed, array2 contained something not in array1 */
661 return GST_VALUE_UNORDERED;
663 /* arrays are equal */
664 return GST_VALUE_EQUAL;
667 /* Perform an ordered comparison of the contents of an array */
669 gst_value_compare_array (const GValue * value1, const GValue * value2)
672 GArray *array1 = value1->data[0].v_pointer;
673 GArray *array2 = value2->data[0].v_pointer;
674 guint len = array1->len;
678 if (len != array2->len)
679 return GST_VALUE_UNORDERED;
681 for (i = 0; i < len; i++) {
682 v1 = &g_array_index (array1, GValue, i);
683 v2 = &g_array_index (array2, GValue, i);
684 if (gst_value_compare (v1, v2) != GST_VALUE_EQUAL)
685 return GST_VALUE_UNORDERED;
688 return GST_VALUE_EQUAL;
692 gst_value_serialize_list (const GValue * value)
694 return gst_value_serialize_any_list (value, "{ ", " }");
698 gst_value_deserialize_list (GValue * dest, const gchar * s)
700 g_warning ("gst_value_deserialize_list: unimplemented");
705 gst_value_serialize_array (const GValue * value)
707 return gst_value_serialize_any_list (value, "< ", " >");
711 gst_value_deserialize_array (GValue * dest, const gchar * s)
713 g_warning ("gst_value_deserialize_array: unimplemented");
722 gst_value_init_int_range (GValue * value)
724 value->data[0].v_int = 0;
725 value->data[1].v_int = 0;
729 gst_value_copy_int_range (const GValue * src_value, GValue * dest_value)
731 dest_value->data[0].v_int = src_value->data[0].v_int;
732 dest_value->data[1].v_int = src_value->data[1].v_int;
736 gst_value_collect_int_range (GValue * value, guint n_collect_values,
737 GTypeCValue * collect_values, guint collect_flags)
739 if (n_collect_values != 2)
740 return g_strdup_printf ("not enough value locations for `%s' passed",
741 G_VALUE_TYPE_NAME (value));
742 if (collect_values[0].v_int >= collect_values[1].v_int)
743 return g_strdup_printf ("range start is not smaller than end for `%s'",
744 G_VALUE_TYPE_NAME (value));
746 value->data[0].v_int = collect_values[0].v_int;
747 value->data[1].v_int = collect_values[1].v_int;
753 gst_value_lcopy_int_range (const GValue * value, guint n_collect_values,
754 GTypeCValue * collect_values, guint collect_flags)
756 guint32 *int_range_start = collect_values[0].v_pointer;
757 guint32 *int_range_end = collect_values[1].v_pointer;
759 if (!int_range_start)
760 return g_strdup_printf ("start value location for `%s' passed as NULL",
761 G_VALUE_TYPE_NAME (value));
763 return g_strdup_printf ("end value location for `%s' passed as NULL",
764 G_VALUE_TYPE_NAME (value));
766 *int_range_start = value->data[0].v_int;
767 *int_range_end = value->data[1].v_int;
773 * gst_value_set_int_range:
774 * @value: a GValue initialized to GST_TYPE_INT_RANGE
775 * @start: the start of the range
776 * @end: the end of the range
778 * Sets @value to the range specified by @start and @end.
781 gst_value_set_int_range (GValue * value, gint start, gint end)
783 g_return_if_fail (GST_VALUE_HOLDS_INT_RANGE (value));
784 g_return_if_fail (start < end);
786 value->data[0].v_int = start;
787 value->data[1].v_int = end;
791 * gst_value_get_int_range_min:
792 * @value: a GValue initialized to GST_TYPE_INT_RANGE
794 * Gets the minimum of the range specified by @value.
796 * Returns: the minimum of the range
799 gst_value_get_int_range_min (const GValue * value)
801 g_return_val_if_fail (GST_VALUE_HOLDS_INT_RANGE (value), 0);
803 return value->data[0].v_int;
807 * gst_value_get_int_range_max:
808 * @value: a GValue initialized to GST_TYPE_INT_RANGE
810 * Gets the maximum of the range specified by @value.
812 * Returns: the maxumum of the range
815 gst_value_get_int_range_max (const GValue * value)
817 g_return_val_if_fail (GST_VALUE_HOLDS_INT_RANGE (value), 0);
819 return value->data[1].v_int;
823 gst_value_transform_int_range_string (const GValue * src_value,
826 dest_value->data[0].v_pointer = g_strdup_printf ("[%d,%d]",
827 (int) src_value->data[0].v_int, (int) src_value->data[1].v_int);
831 gst_value_compare_int_range (const GValue * value1, const GValue * value2)
833 if (value2->data[0].v_int == value1->data[0].v_int &&
834 value2->data[1].v_int == value1->data[1].v_int)
835 return GST_VALUE_EQUAL;
836 return GST_VALUE_UNORDERED;
840 gst_value_serialize_int_range (const GValue * value)
842 return g_strdup_printf ("[ %d, %d ]", value->data[0].v_int,
843 value->data[1].v_int);
847 gst_value_deserialize_int_range (GValue * dest, const gchar * s)
849 g_warning ("unimplemented");
858 gst_value_init_int64_range (GValue * value)
860 value->data[0].v_int64 = 0;
861 value->data[1].v_int64 = 0;
865 gst_value_copy_int64_range (const GValue * src_value, GValue * dest_value)
867 dest_value->data[0].v_int64 = src_value->data[0].v_int64;
868 dest_value->data[1].v_int64 = src_value->data[1].v_int64;
872 gst_value_collect_int64_range (GValue * value, guint n_collect_values,
873 GTypeCValue * collect_values, guint collect_flags)
875 if (n_collect_values != 2)
876 return g_strdup_printf ("not enough value locations for `%s' passed",
877 G_VALUE_TYPE_NAME (value));
878 if (collect_values[0].v_int64 >= collect_values[1].v_int64)
879 return g_strdup_printf ("range start is not smaller than end for `%s'",
880 G_VALUE_TYPE_NAME (value));
882 value->data[0].v_int64 = collect_values[0].v_int64;
883 value->data[1].v_int64 = collect_values[1].v_int64;
889 gst_value_lcopy_int64_range (const GValue * value, guint n_collect_values,
890 GTypeCValue * collect_values, guint collect_flags)
892 guint64 *int_range_start = collect_values[0].v_pointer;
893 guint64 *int_range_end = collect_values[1].v_pointer;
895 if (!int_range_start)
896 return g_strdup_printf ("start value location for `%s' passed as NULL",
897 G_VALUE_TYPE_NAME (value));
899 return g_strdup_printf ("end value location for `%s' passed as NULL",
900 G_VALUE_TYPE_NAME (value));
902 *int_range_start = value->data[0].v_int64;
903 *int_range_end = value->data[1].v_int64;
909 * gst_value_set_int64_range:
910 * @value: a GValue initialized to GST_TYPE_INT64_RANGE
911 * @start: the start of the range
912 * @end: the end of the range
914 * Sets @value to the range specified by @start and @end.
919 gst_value_set_int64_range (GValue * value, gint64 start, gint64 end)
921 g_return_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value));
922 g_return_if_fail (start < end);
924 value->data[0].v_int64 = start;
925 value->data[1].v_int64 = end;
929 * gst_value_get_int64_range_min:
930 * @value: a GValue initialized to GST_TYPE_INT64_RANGE
932 * Gets the minimum of the range specified by @value.
934 * Returns: the minimum of the range
939 gst_value_get_int64_range_min (const GValue * value)
941 g_return_val_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value), 0);
943 return value->data[0].v_int64;
947 * gst_value_get_int64_range_max:
948 * @value: a GValue initialized to GST_TYPE_INT64_RANGE
950 * Gets the maximum of the range specified by @value.
952 * Returns: the maxumum of the range
957 gst_value_get_int64_range_max (const GValue * value)
959 g_return_val_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value), 0);
961 return value->data[1].v_int64;
965 gst_value_transform_int64_range_string (const GValue * src_value,
968 dest_value->data[0].v_pointer =
969 g_strdup_printf ("(gint64)[%" G_GINT64_FORMAT ",%" G_GINT64_FORMAT "]",
970 src_value->data[0].v_int64, src_value->data[1].v_int64);
974 gst_value_compare_int64_range (const GValue * value1, const GValue * value2)
976 if (value2->data[0].v_int64 == value1->data[0].v_int64 &&
977 value2->data[1].v_int64 == value1->data[1].v_int64)
978 return GST_VALUE_EQUAL;
979 return GST_VALUE_UNORDERED;
983 gst_value_serialize_int64_range (const GValue * value)
985 return g_strdup_printf ("[ %" G_GINT64_FORMAT ", %" G_GINT64_FORMAT " ]",
986 value->data[0].v_int64, value->data[1].v_int64);
990 gst_value_deserialize_int64_range (GValue * dest, const gchar * s)
992 g_warning ("unimplemented");
1001 gst_value_init_double_range (GValue * value)
1003 value->data[0].v_double = 0;
1004 value->data[1].v_double = 0;
1008 gst_value_copy_double_range (const GValue * src_value, GValue * dest_value)
1010 dest_value->data[0].v_double = src_value->data[0].v_double;
1011 dest_value->data[1].v_double = src_value->data[1].v_double;
1015 gst_value_collect_double_range (GValue * value, guint n_collect_values,
1016 GTypeCValue * collect_values, guint collect_flags)
1018 if (n_collect_values != 2)
1019 return g_strdup_printf ("not enough value locations for `%s' passed",
1020 G_VALUE_TYPE_NAME (value));
1021 if (collect_values[0].v_double >= collect_values[1].v_double)
1022 return g_strdup_printf ("range start is not smaller than end for `%s'",
1023 G_VALUE_TYPE_NAME (value));
1025 value->data[0].v_double = collect_values[0].v_double;
1026 value->data[1].v_double = collect_values[1].v_double;
1032 gst_value_lcopy_double_range (const GValue * value, guint n_collect_values,
1033 GTypeCValue * collect_values, guint collect_flags)
1035 gdouble *double_range_start = collect_values[0].v_pointer;
1036 gdouble *double_range_end = collect_values[1].v_pointer;
1038 if (!double_range_start)
1039 return g_strdup_printf ("start value location for `%s' passed as NULL",
1040 G_VALUE_TYPE_NAME (value));
1041 if (!double_range_end)
1042 return g_strdup_printf ("end value location for `%s' passed as NULL",
1043 G_VALUE_TYPE_NAME (value));
1045 *double_range_start = value->data[0].v_double;
1046 *double_range_end = value->data[1].v_double;
1052 * gst_value_set_double_range:
1053 * @value: a GValue initialized to GST_TYPE_DOUBLE_RANGE
1054 * @start: the start of the range
1055 * @end: the end of the range
1057 * Sets @value to the range specified by @start and @end.
1060 gst_value_set_double_range (GValue * value, gdouble start, gdouble end)
1062 g_return_if_fail (GST_VALUE_HOLDS_DOUBLE_RANGE (value));
1063 g_return_if_fail (start < end);
1065 value->data[0].v_double = start;
1066 value->data[1].v_double = end;
1070 * gst_value_get_double_range_min:
1071 * @value: a GValue initialized to GST_TYPE_DOUBLE_RANGE
1073 * Gets the minimum of the range specified by @value.
1075 * Returns: the minimum of the range
1078 gst_value_get_double_range_min (const GValue * value)
1080 g_return_val_if_fail (GST_VALUE_HOLDS_DOUBLE_RANGE (value), 0);
1082 return value->data[0].v_double;
1086 * gst_value_get_double_range_max:
1087 * @value: a GValue initialized to GST_TYPE_DOUBLE_RANGE
1089 * Gets the maximum of the range specified by @value.
1091 * Returns: the maxumum of the range
1094 gst_value_get_double_range_max (const GValue * value)
1096 g_return_val_if_fail (GST_VALUE_HOLDS_DOUBLE_RANGE (value), 0);
1098 return value->data[1].v_double;
1102 gst_value_transform_double_range_string (const GValue * src_value,
1103 GValue * dest_value)
1105 gchar s1[G_ASCII_DTOSTR_BUF_SIZE], s2[G_ASCII_DTOSTR_BUF_SIZE];
1107 dest_value->data[0].v_pointer = g_strdup_printf ("[%s,%s]",
1108 g_ascii_dtostr (s1, G_ASCII_DTOSTR_BUF_SIZE,
1109 src_value->data[0].v_double),
1110 g_ascii_dtostr (s2, G_ASCII_DTOSTR_BUF_SIZE,
1111 src_value->data[1].v_double));
1115 gst_value_compare_double_range (const GValue * value1, const GValue * value2)
1117 if (value2->data[0].v_double == value1->data[0].v_double &&
1118 value2->data[0].v_double == value1->data[0].v_double)
1119 return GST_VALUE_EQUAL;
1120 return GST_VALUE_UNORDERED;
1124 gst_value_serialize_double_range (const GValue * value)
1126 gchar d1[G_ASCII_DTOSTR_BUF_SIZE];
1127 gchar d2[G_ASCII_DTOSTR_BUF_SIZE];
1129 g_ascii_dtostr (d1, G_ASCII_DTOSTR_BUF_SIZE, value->data[0].v_double);
1130 g_ascii_dtostr (d2, G_ASCII_DTOSTR_BUF_SIZE, value->data[1].v_double);
1131 return g_strdup_printf ("[ %s, %s ]", d1, d2);
1135 gst_value_deserialize_double_range (GValue * dest, const gchar * s)
1137 g_warning ("unimplemented");
1146 gst_value_init_fraction_range (GValue * value)
1151 ftype = GST_TYPE_FRACTION;
1153 value->data[0].v_pointer = vals = g_slice_alloc0 (2 * sizeof (GValue));
1154 g_value_init (&vals[0], ftype);
1155 g_value_init (&vals[1], ftype);
1159 gst_value_free_fraction_range (GValue * value)
1161 GValue *vals = (GValue *) value->data[0].v_pointer;
1164 /* we know the two values contain fractions without internal allocs */
1165 /* g_value_unset (&vals[0]); */
1166 /* g_value_unset (&vals[1]); */
1167 g_slice_free1 (2 * sizeof (GValue), vals);
1168 value->data[0].v_pointer = NULL;
1173 gst_value_copy_fraction_range (const GValue * src_value, GValue * dest_value)
1175 GValue *vals = (GValue *) dest_value->data[0].v_pointer;
1176 GValue *src_vals = (GValue *) src_value->data[0].v_pointer;
1179 gst_value_init_fraction_range (dest_value);
1180 vals = dest_value->data[0].v_pointer;
1182 if (src_vals != NULL) {
1183 g_value_copy (&src_vals[0], &vals[0]);
1184 g_value_copy (&src_vals[1], &vals[1]);
1189 gst_value_collect_fraction_range (GValue * value, guint n_collect_values,
1190 GTypeCValue * collect_values, guint collect_flags)
1192 GValue *vals = (GValue *) value->data[0].v_pointer;
1194 if (n_collect_values != 4)
1195 return g_strdup_printf ("not enough value locations for `%s' passed",
1196 G_VALUE_TYPE_NAME (value));
1197 if (collect_values[1].v_int == 0)
1198 return g_strdup_printf ("passed '0' as first denominator for `%s'",
1199 G_VALUE_TYPE_NAME (value));
1200 if (collect_values[3].v_int == 0)
1201 return g_strdup_printf ("passed '0' as second denominator for `%s'",
1202 G_VALUE_TYPE_NAME (value));
1203 if (gst_util_fraction_compare (collect_values[0].v_int,
1204 collect_values[1].v_int, collect_values[2].v_int,
1205 collect_values[3].v_int) >= 0)
1206 return g_strdup_printf ("range start is not smaller than end for `%s'",
1207 G_VALUE_TYPE_NAME (value));
1210 gst_value_init_fraction_range (value);
1211 vals = value->data[0].v_pointer;
1214 gst_value_set_fraction (&vals[0], collect_values[0].v_int,
1215 collect_values[1].v_int);
1216 gst_value_set_fraction (&vals[1], collect_values[2].v_int,
1217 collect_values[3].v_int);
1223 gst_value_lcopy_fraction_range (const GValue * value, guint n_collect_values,
1224 GTypeCValue * collect_values, guint collect_flags)
1227 gint *dest_values[4];
1228 GValue *vals = (GValue *) value->data[0].v_pointer;
1230 if (G_UNLIKELY (n_collect_values != 4))
1231 return g_strdup_printf ("not enough value locations for `%s' passed",
1232 G_VALUE_TYPE_NAME (value));
1234 for (i = 0; i < 4; i++) {
1235 if (G_UNLIKELY (collect_values[i].v_pointer == NULL)) {
1236 return g_strdup_printf ("value location for `%s' passed as NULL",
1237 G_VALUE_TYPE_NAME (value));
1239 dest_values[i] = collect_values[i].v_pointer;
1242 if (G_UNLIKELY (vals == NULL)) {
1243 return g_strdup_printf ("Uninitialised `%s' passed",
1244 G_VALUE_TYPE_NAME (value));
1247 dest_values[0][0] = gst_value_get_fraction_numerator (&vals[0]);
1248 dest_values[1][0] = gst_value_get_fraction_denominator (&vals[0]);
1249 dest_values[2][0] = gst_value_get_fraction_numerator (&vals[1]);
1250 dest_values[3][0] = gst_value_get_fraction_denominator (&vals[1]);
1255 * gst_value_set_fraction_range:
1256 * @value: a GValue initialized to GST_TYPE_FRACTION_RANGE
1257 * @start: the start of the range (a GST_TYPE_FRACTION GValue)
1258 * @end: the end of the range (a GST_TYPE_FRACTION GValue)
1260 * Sets @value to the range specified by @start and @end.
1263 gst_value_set_fraction_range (GValue * value, const GValue * start,
1268 g_return_if_fail (GST_VALUE_HOLDS_FRACTION_RANGE (value));
1269 g_return_if_fail (GST_VALUE_HOLDS_FRACTION (start));
1270 g_return_if_fail (GST_VALUE_HOLDS_FRACTION (end));
1271 g_return_if_fail (gst_util_fraction_compare (start->data[0].v_int,
1272 start->data[1].v_int, end->data[0].v_int, end->data[1].v_int) < 0);
1274 vals = (GValue *) value->data[0].v_pointer;
1276 gst_value_init_fraction_range (value);
1277 vals = value->data[0].v_pointer;
1279 g_value_copy (start, &vals[0]);
1280 g_value_copy (end, &vals[1]);
1284 * gst_value_set_fraction_range_full:
1285 * @value: a GValue initialized to GST_TYPE_FRACTION_RANGE
1286 * @numerator_start: the numerator start of the range
1287 * @denominator_start: the denominator start of the range
1288 * @numerator_end: the numerator end of the range
1289 * @denominator_end: the denominator end of the range
1291 * Sets @value to the range specified by @numerator_start/@denominator_start
1292 * and @numerator_end/@denominator_end.
1295 gst_value_set_fraction_range_full (GValue * value,
1296 gint numerator_start, gint denominator_start,
1297 gint numerator_end, gint denominator_end)
1299 GValue start = { 0 };
1302 g_return_if_fail (value != NULL);
1303 g_return_if_fail (denominator_start != 0);
1304 g_return_if_fail (denominator_end != 0);
1305 g_return_if_fail (gst_util_fraction_compare (numerator_start,
1306 denominator_start, numerator_end, denominator_end) < 0);
1308 g_value_init (&start, GST_TYPE_FRACTION);
1309 g_value_init (&end, GST_TYPE_FRACTION);
1311 gst_value_set_fraction (&start, numerator_start, denominator_start);
1312 gst_value_set_fraction (&end, numerator_end, denominator_end);
1313 gst_value_set_fraction_range (value, &start, &end);
1315 /* we know the two values contain fractions without internal allocs */
1316 /* g_value_unset (&start); */
1317 /* g_value_unset (&end); */
1321 * gst_value_get_fraction_range_min:
1322 * @value: a GValue initialized to GST_TYPE_FRACTION_RANGE
1324 * Gets the minimum of the range specified by @value.
1326 * Returns: the minimum of the range
1329 gst_value_get_fraction_range_min (const GValue * value)
1333 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION_RANGE (value), NULL);
1335 vals = (GValue *) value->data[0].v_pointer;
1344 * gst_value_get_fraction_range_max:
1345 * @value: a GValue initialized to GST_TYPE_FRACTION_RANGE
1347 * Gets the maximum of the range specified by @value.
1349 * Returns: the maximum of the range
1352 gst_value_get_fraction_range_max (const GValue * value)
1356 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION_RANGE (value), NULL);
1358 vals = (GValue *) value->data[0].v_pointer;
1367 gst_value_serialize_fraction_range (const GValue * value)
1369 GValue *vals = (GValue *) value->data[0].v_pointer;
1373 retval = g_strdup ("[ 0/1, 0/1 ]");
1377 start = gst_value_serialize_fraction (&vals[0]);
1378 end = gst_value_serialize_fraction (&vals[1]);
1380 retval = g_strdup_printf ("[ %s, %s ]", start, end);
1389 gst_value_transform_fraction_range_string (const GValue * src_value,
1390 GValue * dest_value)
1392 dest_value->data[0].v_pointer =
1393 gst_value_serialize_fraction_range (src_value);
1397 gst_value_compare_fraction_range (const GValue * value1, const GValue * value2)
1399 GValue *vals1, *vals2;
1400 GstValueCompareFunc compare;
1402 if (value2->data[0].v_pointer == value1->data[0].v_pointer)
1403 return GST_VALUE_EQUAL; /* Only possible if both are NULL */
1405 if (value2->data[0].v_pointer == NULL || value1->data[0].v_pointer == NULL)
1406 return GST_VALUE_UNORDERED;
1408 vals1 = (GValue *) value1->data[0].v_pointer;
1409 vals2 = (GValue *) value2->data[0].v_pointer;
1410 if ((compare = gst_value_get_compare_func (&vals1[0]))) {
1411 if (gst_value_compare_with_func (&vals1[0], &vals2[0], compare) ==
1413 gst_value_compare_with_func (&vals1[1], &vals2[1], compare) ==
1415 return GST_VALUE_EQUAL;
1417 return GST_VALUE_UNORDERED;
1421 gst_value_deserialize_fraction_range (GValue * dest, const gchar * s)
1423 g_warning ("unimplemented");
1432 * gst_value_set_caps:
1433 * @value: a GValue initialized to GST_TYPE_CAPS
1434 * @caps: (transfer none): the caps to set the value to
1436 * Sets the contents of @value to @caps. A reference to the
1437 * provided @caps will be taken by the @value.
1440 gst_value_set_caps (GValue * value, const GstCaps * caps)
1442 g_return_if_fail (G_IS_VALUE (value));
1443 g_return_if_fail (G_VALUE_TYPE (value) == GST_TYPE_CAPS);
1444 g_return_if_fail (caps == NULL || GST_IS_CAPS (caps));
1446 g_value_set_boxed (value, caps);
1450 * gst_value_get_caps:
1451 * @value: a GValue initialized to GST_TYPE_CAPS
1453 * Gets the contents of @value. The reference count of the returned
1454 * #GstCaps will not be modified, therefore the caller must take one
1455 * before getting rid of the @value.
1457 * Returns: (transfer none): the contents of @value
1460 gst_value_get_caps (const GValue * value)
1462 g_return_val_if_fail (G_IS_VALUE (value), NULL);
1463 g_return_val_if_fail (G_VALUE_TYPE (value) == GST_TYPE_CAPS, NULL);
1465 return (GstCaps *) g_value_get_boxed (value);
1469 gst_value_serialize_caps (const GValue * value)
1471 GstCaps *caps = g_value_get_boxed (value);
1473 return gst_caps_to_string (caps);
1477 gst_value_deserialize_caps (GValue * dest, const gchar * s)
1481 caps = gst_caps_from_string (s);
1484 g_value_take_boxed (dest, caps);
1495 * gst_value_set_structure:
1496 * @value: a GValue initialized to GST_TYPE_STRUCTURE
1497 * @structure: the structure to set the value to
1499 * Sets the contents of @value to @structure. The actual
1504 gst_value_set_structure (GValue * value, const GstStructure * structure)
1506 g_return_if_fail (G_IS_VALUE (value));
1507 g_return_if_fail (G_VALUE_TYPE (value) == GST_TYPE_STRUCTURE);
1508 g_return_if_fail (structure == NULL || GST_IS_STRUCTURE (structure));
1510 g_value_set_boxed (value, structure);
1514 * gst_value_get_structure:
1515 * @value: a GValue initialized to GST_TYPE_STRUCTURE
1517 * Gets the contents of @value.
1519 * Returns: (transfer none): the contents of @value
1523 const GstStructure *
1524 gst_value_get_structure (const GValue * value)
1526 g_return_val_if_fail (G_IS_VALUE (value), NULL);
1527 g_return_val_if_fail (G_VALUE_TYPE (value) == GST_TYPE_STRUCTURE, NULL);
1529 return (GstStructure *) g_value_get_boxed (value);
1533 gst_value_serialize_structure (const GValue * value)
1535 GstStructure *structure = g_value_get_boxed (value);
1537 return gst_string_take_and_wrap (gst_structure_to_string (structure));
1541 gst_value_deserialize_structure (GValue * dest, const gchar * s)
1543 GstStructure *structure;
1546 structure = gst_structure_from_string (s, NULL);
1548 gchar *str = gst_string_unwrap (s);
1550 if (G_UNLIKELY (!str))
1553 structure = gst_structure_from_string (str, NULL);
1557 if (G_LIKELY (structure)) {
1558 g_value_take_boxed (dest, structure);
1569 gst_value_compare_buffer (const GValue * value1, const GValue * value2)
1571 GstBuffer *buf1 = gst_value_get_buffer (value1);
1572 GstBuffer *buf2 = gst_value_get_buffer (value2);
1574 gpointer data1, data2;
1575 gint result = GST_VALUE_UNORDERED;
1577 size1 = gst_buffer_get_size (buf1);
1578 size2 = gst_buffer_get_size (buf2);
1581 return GST_VALUE_UNORDERED;
1584 return GST_VALUE_EQUAL;
1586 data1 = gst_buffer_map (buf1, &size1, NULL, GST_MAP_READ);
1587 data2 = gst_buffer_map (buf2, &size2, NULL, GST_MAP_READ);
1591 if (memcmp (data1, data2, size1) == 0)
1592 result = GST_VALUE_EQUAL;
1594 gst_buffer_unmap (buf2, data2, size2);
1595 gst_buffer_unmap (buf1, data1, size1);
1601 gst_value_serialize_buffer (const GValue * value)
1609 buffer = gst_value_get_buffer (value);
1613 data = gst_buffer_map (buffer, &size, NULL, GST_MAP_READ);
1615 string = g_malloc (size * 2 + 1);
1616 for (i = 0; i < size; i++) {
1617 sprintf (string + i * 2, "%02x", data[i]);
1619 string[size * 2] = 0;
1621 gst_buffer_unmap (buffer, data, size);
1627 gst_value_deserialize_buffer (GValue * dest, const gchar * s)
1640 buffer = gst_buffer_new_allocate (NULL, len / 2, 0);
1641 data = gst_buffer_map (buffer, &size, NULL, GST_MAP_WRITE);
1643 for (i = 0; i < len / 2; i++) {
1644 if (!isxdigit ((int) s[i * 2]) || !isxdigit ((int) s[i * 2 + 1]))
1647 ts[0] = s[i * 2 + 0];
1648 ts[1] = s[i * 2 + 1];
1651 data[i] = (guint8) strtoul (ts, NULL, 16);
1653 gst_buffer_unmap (buffer, data, size);
1655 gst_value_take_buffer (dest, buffer);
1666 gst_buffer_unref (buffer);
1667 gst_buffer_unmap (buffer, data, size);
1678 gst_value_compare_boolean (const GValue * value1, const GValue * value2)
1680 if ((value1->data[0].v_int != 0) == (value2->data[0].v_int != 0))
1681 return GST_VALUE_EQUAL;
1682 return GST_VALUE_UNORDERED;
1686 gst_value_serialize_boolean (const GValue * value)
1688 if (value->data[0].v_int) {
1689 return g_strdup ("true");
1691 return g_strdup ("false");
1695 gst_value_deserialize_boolean (GValue * dest, const gchar * s)
1697 gboolean ret = FALSE;
1699 if (g_ascii_strcasecmp (s, "true") == 0 ||
1700 g_ascii_strcasecmp (s, "yes") == 0 ||
1701 g_ascii_strcasecmp (s, "t") == 0 || strcmp (s, "1") == 0) {
1702 g_value_set_boolean (dest, TRUE);
1704 } else if (g_ascii_strcasecmp (s, "false") == 0 ||
1705 g_ascii_strcasecmp (s, "no") == 0 ||
1706 g_ascii_strcasecmp (s, "f") == 0 || strcmp (s, "0") == 0) {
1707 g_value_set_boolean (dest, FALSE);
1714 #define CREATE_SERIALIZATION_START(_type,_macro) \
1716 gst_value_compare_ ## _type \
1717 (const GValue * value1, const GValue * value2) \
1719 g ## _type val1 = g_value_get_ ## _type (value1); \
1720 g ## _type val2 = g_value_get_ ## _type (value2); \
1722 return GST_VALUE_GREATER_THAN; \
1724 return GST_VALUE_LESS_THAN; \
1725 return GST_VALUE_EQUAL; \
1729 gst_value_serialize_ ## _type (const GValue * value) \
1731 GValue val = { 0, }; \
1732 g_value_init (&val, G_TYPE_STRING); \
1733 if (!g_value_transform (value, &val)) \
1734 g_assert_not_reached (); \
1735 /* NO_COPY_MADNESS!!! */ \
1736 return (char *) g_value_get_string (&val); \
1739 /* deserialize the given s into to as a gint64.
1740 * check if the result is actually storeable in the given size number of
1744 gst_value_deserialize_int_helper (gint64 * to, const gchar * s,
1745 gint64 min, gint64 max, gint size)
1747 gboolean ret = FALSE;
1752 *to = g_ascii_strtoull (s, &end, 0);
1753 /* a range error is a definitive no-no */
1754 if (errno == ERANGE) {
1761 if (g_ascii_strcasecmp (s, "little_endian") == 0) {
1762 *to = G_LITTLE_ENDIAN;
1764 } else if (g_ascii_strcasecmp (s, "big_endian") == 0) {
1767 } else if (g_ascii_strcasecmp (s, "byte_order") == 0) {
1770 } else if (g_ascii_strcasecmp (s, "min") == 0) {
1773 } else if (g_ascii_strcasecmp (s, "max") == 0) {
1779 /* by definition, a gint64 fits into a gint64; so ignore those */
1780 if (size != sizeof (mask)) {
1782 /* for positive numbers, we create a mask of 1's outside of the range
1783 * and 0's inside the range. An and will thus keep only 1 bits
1784 * outside of the range */
1785 mask <<= (size * 8);
1786 if ((mask & *to) != 0) {
1790 /* for negative numbers, we do a 2's complement version */
1791 mask <<= ((size * 8) - 1);
1792 if ((mask & *to) != mask) {
1801 #define CREATE_SERIALIZATION(_type,_macro) \
1802 CREATE_SERIALIZATION_START(_type,_macro) \
1805 gst_value_deserialize_ ## _type (GValue * dest, const gchar *s) \
1809 if (gst_value_deserialize_int_helper (&x, s, G_MIN ## _macro, \
1810 G_MAX ## _macro, sizeof (g ## _type))) { \
1811 g_value_set_ ## _type (dest, /*(g ## _type)*/ x); \
1818 #define CREATE_USERIALIZATION(_type,_macro) \
1819 CREATE_SERIALIZATION_START(_type,_macro) \
1822 gst_value_deserialize_ ## _type (GValue * dest, const gchar *s) \
1826 gboolean ret = FALSE; \
1829 x = g_ascii_strtoull (s, &end, 0); \
1830 /* a range error is a definitive no-no */ \
1831 if (errno == ERANGE) { \
1834 /* the cast ensures the range check later on makes sense */ \
1835 x = (g ## _type) x; \
1839 if (g_ascii_strcasecmp (s, "little_endian") == 0) { \
1840 x = G_LITTLE_ENDIAN; \
1842 } else if (g_ascii_strcasecmp (s, "big_endian") == 0) { \
1845 } else if (g_ascii_strcasecmp (s, "byte_order") == 0) { \
1848 } else if (g_ascii_strcasecmp (s, "min") == 0) { \
1851 } else if (g_ascii_strcasecmp (s, "max") == 0) { \
1852 x = G_MAX ## _macro; \
1857 if (x > G_MAX ## _macro) { \
1860 g_value_set_ ## _type (dest, x); \
1866 #define REGISTER_SERIALIZATION(_gtype, _type) \
1868 static const GstValueTable gst_value = { \
1870 gst_value_compare_ ## _type, \
1871 gst_value_serialize_ ## _type, \
1872 gst_value_deserialize_ ## _type, \
1875 gst_value_register (&gst_value); \
1878 CREATE_SERIALIZATION (int, INT);
1879 CREATE_SERIALIZATION (int64, INT64);
1880 CREATE_SERIALIZATION (long, LONG);
1882 CREATE_USERIALIZATION (uint, UINT);
1883 CREATE_USERIALIZATION (uint64, UINT64);
1884 CREATE_USERIALIZATION (ulong, ULONG);
1886 /* FIXME 0.11: remove this again, plugins shouldn't have uchar properties */
1888 #define G_MAXUCHAR 255
1890 CREATE_USERIALIZATION (uchar, UCHAR);
1896 gst_value_compare_double (const GValue * value1, const GValue * value2)
1898 if (value1->data[0].v_double > value2->data[0].v_double)
1899 return GST_VALUE_GREATER_THAN;
1900 if (value1->data[0].v_double < value2->data[0].v_double)
1901 return GST_VALUE_LESS_THAN;
1902 if (value1->data[0].v_double == value2->data[0].v_double)
1903 return GST_VALUE_EQUAL;
1904 return GST_VALUE_UNORDERED;
1908 gst_value_serialize_double (const GValue * value)
1910 gchar d[G_ASCII_DTOSTR_BUF_SIZE];
1912 g_ascii_dtostr (d, G_ASCII_DTOSTR_BUF_SIZE, value->data[0].v_double);
1913 return g_strdup (d);
1917 gst_value_deserialize_double (GValue * dest, const gchar * s)
1920 gboolean ret = FALSE;
1923 x = g_ascii_strtod (s, &end);
1927 if (g_ascii_strcasecmp (s, "min") == 0) {
1930 } else if (g_ascii_strcasecmp (s, "max") == 0) {
1936 g_value_set_double (dest, x);
1946 gst_value_compare_float (const GValue * value1, const GValue * value2)
1948 if (value1->data[0].v_float > value2->data[0].v_float)
1949 return GST_VALUE_GREATER_THAN;
1950 if (value1->data[0].v_float < value2->data[0].v_float)
1951 return GST_VALUE_LESS_THAN;
1952 if (value1->data[0].v_float == value2->data[0].v_float)
1953 return GST_VALUE_EQUAL;
1954 return GST_VALUE_UNORDERED;
1958 gst_value_serialize_float (const GValue * value)
1960 gchar d[G_ASCII_DTOSTR_BUF_SIZE];
1962 g_ascii_dtostr (d, G_ASCII_DTOSTR_BUF_SIZE, value->data[0].v_float);
1963 return g_strdup (d);
1967 gst_value_deserialize_float (GValue * dest, const gchar * s)
1970 gboolean ret = FALSE;
1973 x = g_ascii_strtod (s, &end);
1977 if (g_ascii_strcasecmp (s, "min") == 0) {
1980 } else if (g_ascii_strcasecmp (s, "max") == 0) {
1985 if (x > G_MAXFLOAT || x < -G_MAXFLOAT)
1988 g_value_set_float (dest, (float) x);
1998 gst_value_compare_string (const GValue * value1, const GValue * value2)
2000 if (G_UNLIKELY (!value1->data[0].v_pointer || !value2->data[0].v_pointer)) {
2001 /* if only one is NULL, no match - otherwise both NULL == EQUAL */
2002 if (value1->data[0].v_pointer != value2->data[0].v_pointer)
2003 return GST_VALUE_UNORDERED;
2005 gint x = strcmp (value1->data[0].v_pointer, value2->data[0].v_pointer);
2008 return GST_VALUE_LESS_THAN;
2010 return GST_VALUE_GREATER_THAN;
2013 return GST_VALUE_EQUAL;
2017 gst_string_measure_wrapping (const gchar * s)
2020 gboolean wrap = FALSE;
2022 if (G_UNLIKELY (s == NULL))
2025 /* Special case: the actual string NULL needs wrapping */
2026 if (G_UNLIKELY (strcmp (s, "NULL") == 0))
2031 if (GST_ASCII_IS_STRING (*s)) {
2033 } else if (*s < 0x20 || *s >= 0x7f) {
2043 /* Wrap the string if we found something that needs
2044 * wrapping, or the empty string (len == 0) */
2045 return (wrap || len == 0) ? len : -1;
2049 gst_string_wrap_inner (const gchar * s, gint len)
2053 e = d = g_malloc (len + 3);
2057 if (GST_ASCII_IS_STRING (*s)) {
2059 } else if (*s < 0x20 || *s >= 0x7f) {
2061 *e++ = '0' + ((*(guchar *) s) >> 6);
2062 *e++ = '0' + (((*s) >> 3) & 0x7);
2063 *e++ = '0' + ((*s++) & 0x7);
2072 g_assert (e - d <= len + 3);
2076 /* Do string wrapping/escaping */
2078 gst_string_wrap (const gchar * s)
2080 gint len = gst_string_measure_wrapping (s);
2082 if (G_LIKELY (len < 0))
2083 return g_strdup (s);
2085 return gst_string_wrap_inner (s, len);
2088 /* Same as above, but take ownership of the string */
2090 gst_string_take_and_wrap (gchar * s)
2093 gint len = gst_string_measure_wrapping (s);
2095 if (G_LIKELY (len < 0))
2098 out = gst_string_wrap_inner (s, len);
2105 * This function takes a string delimited with double quotes (")
2106 * and unescapes any \xxx octal numbers.
2108 * If sequences of \y are found where y is not in the range of
2109 * 0->3, y is copied unescaped.
2111 * If \xyy is found where x is an octal number but y is not, an
2112 * error is encountered and NULL is returned.
2114 * the input string must be \0 terminated.
2117 gst_string_unwrap (const gchar * s)
2120 gchar *read, *write;
2122 /* NULL string returns NULL */
2126 /* strings not starting with " are invalid */
2130 /* make copy of original string to hold the result. This
2131 * string will always be smaller than the original */
2136 /* need to move to the next position as we parsed the " */
2140 if (GST_ASCII_IS_STRING (*read)) {
2141 /* normal chars are just copied */
2143 } else if (*read == '"') {
2144 /* quote marks end of string */
2146 } else if (*read == '\\') {
2147 /* got an escape char, move to next position to read a tripplet
2148 * of octal numbers */
2150 /* is the next char a possible first octal number? */
2151 if (*read >= '0' && *read <= '3') {
2152 /* parse other 2 numbers, if one of them is not in the range of
2153 * an octal number, we error. We also catch the case where a zero
2154 * byte is found here. */
2155 if (read[1] < '0' || read[1] > '7' || read[2] < '0' || read[2] > '7')
2158 /* now convert the octal number to a byte again. */
2159 *write++ = ((read[0] - '0') << 6) +
2160 ((read[1] - '0') << 3) + (read[2] - '0');
2164 /* if we run into a \0 here, we definitely won't get a quote later */
2168 /* else copy \X sequence */
2172 /* weird character, error */
2176 /* if the string is not ending in " and zero terminated, we error */
2177 if (*read != '"' || read[1] != '\0')
2180 /* null terminate result string and return */
2190 gst_value_serialize_string (const GValue * value)
2192 return gst_string_wrap (value->data[0].v_pointer);
2196 gst_value_deserialize_string (GValue * dest, const gchar * s)
2198 if (G_UNLIKELY (strcmp (s, "NULL") == 0)) {
2199 g_value_set_string (dest, NULL);
2201 } else if (G_LIKELY (*s != '"')) {
2202 if (!g_utf8_validate (s, -1, NULL))
2204 g_value_set_string (dest, s);
2207 gchar *str = gst_string_unwrap (s);
2208 if (G_UNLIKELY (!str))
2210 g_value_take_string (dest, str);
2221 gst_value_compare_enum (const GValue * value1, const GValue * value2)
2223 GEnumValue *en1, *en2;
2224 GEnumClass *klass1 = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (value1));
2225 GEnumClass *klass2 = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (value2));
2227 g_return_val_if_fail (klass1, GST_VALUE_UNORDERED);
2228 g_return_val_if_fail (klass2, GST_VALUE_UNORDERED);
2229 en1 = g_enum_get_value (klass1, g_value_get_enum (value1));
2230 en2 = g_enum_get_value (klass2, g_value_get_enum (value2));
2231 g_type_class_unref (klass1);
2232 g_type_class_unref (klass2);
2233 g_return_val_if_fail (en1, GST_VALUE_UNORDERED);
2234 g_return_val_if_fail (en2, GST_VALUE_UNORDERED);
2235 if (en1->value < en2->value)
2236 return GST_VALUE_LESS_THAN;
2237 if (en1->value > en2->value)
2238 return GST_VALUE_GREATER_THAN;
2240 return GST_VALUE_EQUAL;
2244 gst_value_serialize_enum (const GValue * value)
2247 GEnumClass *klass = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (value));
2249 g_return_val_if_fail (klass, NULL);
2250 en = g_enum_get_value (klass, g_value_get_enum (value));
2251 g_type_class_unref (klass);
2253 /* might be one of the custom formats registered later */
2254 if (G_UNLIKELY (en == NULL && G_VALUE_TYPE (value) == GST_TYPE_FORMAT)) {
2255 const GstFormatDefinition *format_def;
2257 format_def = gst_format_get_details ((GstFormat) g_value_get_enum (value));
2258 g_return_val_if_fail (format_def != NULL, NULL);
2259 return g_strdup (format_def->description);
2262 g_return_val_if_fail (en, NULL);
2263 return g_strdup (en->value_name);
2267 gst_value_deserialize_enum_iter_cmp (const GValue * format_def_value,
2270 const GstFormatDefinition *format_def =
2271 g_value_get_pointer (format_def_value);
2273 if (g_ascii_strcasecmp (s, format_def->nick) == 0)
2276 return g_ascii_strcasecmp (s, format_def->description);
2280 gst_value_deserialize_enum (GValue * dest, const gchar * s)
2283 gchar *endptr = NULL;
2284 GEnumClass *klass = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (dest));
2286 g_return_val_if_fail (klass, FALSE);
2287 if (!(en = g_enum_get_value_by_name (klass, s))) {
2288 if (!(en = g_enum_get_value_by_nick (klass, s))) {
2289 gint i = strtol (s, &endptr, 0);
2291 if (endptr && *endptr == '\0') {
2292 en = g_enum_get_value (klass, i);
2296 g_type_class_unref (klass);
2298 /* might be one of the custom formats registered later */
2299 if (G_UNLIKELY (en == NULL && G_VALUE_TYPE (dest) == GST_TYPE_FORMAT)) {
2300 GValue res = { 0, };
2301 const GstFormatDefinition *format_def;
2305 iter = gst_format_iterate_definitions ();
2307 found = gst_iterator_find_custom (iter,
2308 (GCompareFunc) gst_value_deserialize_enum_iter_cmp, &res, (gpointer) s);
2310 g_return_val_if_fail (found, FALSE);
2311 format_def = g_value_get_pointer (&res);
2312 g_return_val_if_fail (format_def != NULL, FALSE);
2313 g_value_set_enum (dest, (gint) format_def->value);
2314 g_value_unset (&res);
2315 gst_iterator_free (iter);
2319 g_return_val_if_fail (en, FALSE);
2320 g_value_set_enum (dest, en->value);
2328 /* we just compare the value here */
2330 gst_value_compare_flags (const GValue * value1, const GValue * value2)
2333 GFlagsClass *klass1 =
2334 (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (value1));
2335 GFlagsClass *klass2 =
2336 (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (value2));
2338 g_return_val_if_fail (klass1, GST_VALUE_UNORDERED);
2339 g_return_val_if_fail (klass2, GST_VALUE_UNORDERED);
2340 fl1 = g_value_get_flags (value1);
2341 fl2 = g_value_get_flags (value2);
2342 g_type_class_unref (klass1);
2343 g_type_class_unref (klass2);
2345 return GST_VALUE_LESS_THAN;
2347 return GST_VALUE_GREATER_THAN;
2349 return GST_VALUE_EQUAL;
2352 /* the different flags are serialized separated with a + */
2354 gst_value_serialize_flags (const GValue * value)
2358 GFlagsClass *klass = (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (value));
2359 gchar *result, *tmp;
2360 gboolean first = TRUE;
2362 g_return_val_if_fail (klass, NULL);
2364 flags = g_value_get_flags (value);
2366 /* if no flags are set, try to serialize to the _NONE string */
2368 fl = g_flags_get_first_value (klass, flags);
2369 return g_strdup (fl->value_name);
2372 /* some flags are set, so serialize one by one */
2373 result = g_strdup ("");
2375 fl = g_flags_get_first_value (klass, flags);
2377 tmp = g_strconcat (result, (first ? "" : "+"), fl->value_name, NULL);
2383 flags &= ~fl->value;
2386 g_type_class_unref (klass);
2392 gst_value_deserialize_flags (GValue * dest, const gchar * s)
2395 gchar *endptr = NULL;
2396 GFlagsClass *klass = (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (dest));
2401 g_return_val_if_fail (klass, FALSE);
2403 /* split into parts delimited with + */
2404 split = g_strsplit (s, "+", 0);
2408 /* loop over each part */
2410 if (!(fl = g_flags_get_value_by_name (klass, split[i]))) {
2411 if (!(fl = g_flags_get_value_by_nick (klass, split[i]))) {
2412 gint val = strtol (split[i], &endptr, 0);
2414 /* just or numeric value */
2415 if (endptr && *endptr == '\0') {
2426 g_type_class_unref (klass);
2427 g_value_set_flags (dest, flags);
2437 gst_value_union_int_int_range (GValue * dest, const GValue * src1,
2438 const GValue * src2)
2440 if (src2->data[0].v_int <= src1->data[0].v_int &&
2441 src2->data[1].v_int >= src1->data[0].v_int) {
2442 gst_value_init_and_copy (dest, src2);
2449 gst_value_union_int_range_int_range (GValue * dest, const GValue * src1,
2450 const GValue * src2)
2455 min = MAX (src1->data[0].v_int, src2->data[0].v_int);
2456 max = MIN (src1->data[1].v_int, src2->data[1].v_int);
2459 g_value_init (dest, GST_TYPE_INT_RANGE);
2460 gst_value_set_int_range (dest,
2461 MIN (src1->data[0].v_int, src2->data[0].v_int),
2462 MAX (src1->data[1].v_int, src2->data[1].v_int));
2474 gst_value_intersect_int_int_range (GValue * dest, const GValue * src1,
2475 const GValue * src2)
2477 if (src2->data[0].v_int <= src1->data[0].v_int &&
2478 src2->data[1].v_int >= src1->data[0].v_int) {
2480 gst_value_init_and_copy (dest, src1);
2488 gst_value_intersect_int_range_int_range (GValue * dest, const GValue * src1,
2489 const GValue * src2)
2494 min = MAX (src1->data[0].v_int, src2->data[0].v_int);
2495 max = MIN (src1->data[1].v_int, src2->data[1].v_int);
2499 g_value_init (dest, GST_TYPE_INT_RANGE);
2500 gst_value_set_int_range (dest, min, max);
2506 g_value_init (dest, G_TYPE_INT);
2507 g_value_set_int (dest, min);
2516 gst_value_intersect_int64_int64_range (GValue * dest, const GValue * src1,
2517 const GValue * src2)
2519 if (src2->data[0].v_int64 <= src1->data[0].v_int64 &&
2520 src2->data[1].v_int64 >= src1->data[0].v_int64) {
2522 gst_value_init_and_copy (dest, src1);
2530 gst_value_intersect_int64_range_int64_range (GValue * dest, const GValue * src1,
2531 const GValue * src2)
2536 min = MAX (src1->data[0].v_int64, src2->data[0].v_int64);
2537 max = MIN (src1->data[1].v_int64, src2->data[1].v_int64);
2541 g_value_init (dest, GST_TYPE_INT64_RANGE);
2542 gst_value_set_int64_range (dest, min, max);
2548 g_value_init (dest, G_TYPE_INT64);
2549 g_value_set_int64 (dest, min);
2558 gst_value_intersect_double_double_range (GValue * dest, const GValue * src1,
2559 const GValue * src2)
2561 if (src2->data[0].v_double <= src1->data[0].v_double &&
2562 src2->data[1].v_double >= src1->data[0].v_double) {
2564 gst_value_init_and_copy (dest, src1);
2572 gst_value_intersect_double_range_double_range (GValue * dest,
2573 const GValue * src1, const GValue * src2)
2578 min = MAX (src1->data[0].v_double, src2->data[0].v_double);
2579 max = MIN (src1->data[1].v_double, src2->data[1].v_double);
2583 g_value_init (dest, GST_TYPE_DOUBLE_RANGE);
2584 gst_value_set_double_range (dest, min, max);
2590 g_value_init (dest, G_TYPE_DOUBLE);
2591 g_value_set_int (dest, (int) min);
2600 gst_value_intersect_list (GValue * dest, const GValue * value1,
2601 const GValue * value2)
2604 GValue intersection = { 0, };
2605 gboolean ret = FALSE;
2607 size = VALUE_LIST_SIZE (value1);
2608 for (i = 0; i < size; i++) {
2609 const GValue *cur = VALUE_LIST_GET_VALUE (value1, i);
2611 /* quicker version when we don't need the resulting set */
2613 if (gst_value_intersect (NULL, cur, value2)) {
2620 if (gst_value_intersect (&intersection, cur, value2)) {
2623 gst_value_init_and_copy (dest, &intersection);
2625 } else if (GST_VALUE_HOLDS_LIST (dest)) {
2626 gst_value_list_append_value (dest, &intersection);
2628 GValue temp = { 0, };
2630 gst_value_init_and_copy (&temp, dest);
2631 g_value_unset (dest);
2632 gst_value_list_concat (dest, &temp, &intersection);
2633 g_value_unset (&temp);
2635 g_value_unset (&intersection);
2643 gst_value_intersect_array (GValue * dest, const GValue * src1,
2644 const GValue * src2)
2650 /* only works on similar-sized arrays */
2651 size = gst_value_array_get_size (src1);
2652 if (size != gst_value_array_get_size (src2))
2655 /* quicker value when we don't need the resulting set */
2657 for (n = 0; n < size; n++) {
2658 if (!gst_value_intersect (NULL, gst_value_array_get_value (src1, n),
2659 gst_value_array_get_value (src2, n))) {
2666 g_value_init (dest, GST_TYPE_ARRAY);
2668 for (n = 0; n < size; n++) {
2669 if (!gst_value_intersect (&val, gst_value_array_get_value (src1, n),
2670 gst_value_array_get_value (src2, n))) {
2671 g_value_unset (dest);
2674 gst_value_array_append_value (dest, &val);
2675 g_value_unset (&val);
2682 gst_value_intersect_fraction_fraction_range (GValue * dest, const GValue * src1,
2683 const GValue * src2)
2687 GstValueCompareFunc compare;
2689 vals = src2->data[0].v_pointer;
2694 if ((compare = gst_value_get_compare_func (src1))) {
2695 res1 = gst_value_compare_with_func (&vals[0], src1, compare);
2696 res2 = gst_value_compare_with_func (&vals[1], src1, compare);
2698 if ((res1 == GST_VALUE_EQUAL || res1 == GST_VALUE_LESS_THAN) &&
2699 (res2 == GST_VALUE_EQUAL || res2 == GST_VALUE_GREATER_THAN)) {
2701 gst_value_init_and_copy (dest, src1);
2710 gst_value_intersect_fraction_range_fraction_range (GValue * dest,
2711 const GValue * src1, const GValue * src2)
2716 GValue *vals1, *vals2;
2717 GstValueCompareFunc compare;
2719 vals1 = src1->data[0].v_pointer;
2720 vals2 = src2->data[0].v_pointer;
2721 g_return_val_if_fail (vals1 != NULL && vals2 != NULL, FALSE);
2723 if ((compare = gst_value_get_compare_func (&vals1[0]))) {
2724 /* min = MAX (src1.start, src2.start) */
2725 res = gst_value_compare_with_func (&vals1[0], &vals2[0], compare);
2726 g_return_val_if_fail (res != GST_VALUE_UNORDERED, FALSE);
2727 if (res == GST_VALUE_LESS_THAN)
2728 min = &vals2[0]; /* Take the max of the 2 */
2732 /* max = MIN (src1.end, src2.end) */
2733 res = gst_value_compare_with_func (&vals1[1], &vals2[1], compare);
2734 g_return_val_if_fail (res != GST_VALUE_UNORDERED, FALSE);
2735 if (res == GST_VALUE_GREATER_THAN)
2736 max = &vals2[1]; /* Take the min of the 2 */
2740 res = gst_value_compare_with_func (min, max, compare);
2741 g_return_val_if_fail (res != GST_VALUE_UNORDERED, FALSE);
2742 if (res == GST_VALUE_LESS_THAN) {
2744 g_value_init (dest, GST_TYPE_FRACTION_RANGE);
2745 vals1 = dest->data[0].v_pointer;
2746 g_value_copy (min, &vals1[0]);
2747 g_value_copy (max, &vals1[1]);
2751 if (res == GST_VALUE_EQUAL) {
2753 gst_value_init_and_copy (dest, min);
2766 gst_value_subtract_int_int_range (GValue * dest, const GValue * minuend,
2767 const GValue * subtrahend)
2769 gint min = gst_value_get_int_range_min (subtrahend);
2770 gint max = gst_value_get_int_range_max (subtrahend);
2771 gint val = g_value_get_int (minuend);
2773 /* subtracting a range from an int only works if the int is not in the
2775 if (val < min || val > max) {
2776 /* and the result is the int */
2778 gst_value_init_and_copy (dest, minuend);
2784 /* creates a new int range based on input values.
2787 gst_value_create_new_range (GValue * dest, gint min1, gint max1, gint min2,
2792 GValue *pv1, *pv2; /* yeah, hungarian! */
2794 if (min1 <= max1 && min2 <= max2) {
2797 } else if (min1 <= max1) {
2800 } else if (min2 <= max2) {
2811 g_value_init (pv1, GST_TYPE_INT_RANGE);
2812 gst_value_set_int_range (pv1, min1, max1);
2813 } else if (min1 == max1) {
2814 g_value_init (pv1, G_TYPE_INT);
2815 g_value_set_int (pv1, min1);
2818 g_value_init (pv2, GST_TYPE_INT_RANGE);
2819 gst_value_set_int_range (pv2, min2, max2);
2820 } else if (min2 == max2) {
2821 g_value_init (pv2, G_TYPE_INT);
2822 g_value_set_int (pv2, min2);
2825 if (min1 <= max1 && min2 <= max2) {
2826 gst_value_list_concat (dest, pv1, pv2);
2827 g_value_unset (pv1);
2828 g_value_unset (pv2);
2834 gst_value_subtract_int_range_int (GValue * dest, const GValue * minuend,
2835 const GValue * subtrahend)
2837 gint min = gst_value_get_int_range_min (minuend);
2838 gint max = gst_value_get_int_range_max (minuend);
2839 gint val = g_value_get_int (subtrahend);
2841 g_return_val_if_fail (min < max, FALSE);
2843 /* value is outside of the range, return range unchanged */
2844 if (val < min || val > max) {
2846 gst_value_init_and_copy (dest, minuend);
2849 /* max must be MAXINT too as val <= max */
2850 if (val == G_MAXINT) {
2854 /* min must be MININT too as val >= max */
2855 if (val == G_MININT) {
2860 gst_value_create_new_range (dest, min, val - 1, val + 1, max);
2866 gst_value_subtract_int_range_int_range (GValue * dest, const GValue * minuend,
2867 const GValue * subtrahend)
2869 gint min1 = gst_value_get_int_range_min (minuend);
2870 gint max1 = gst_value_get_int_range_max (minuend);
2871 gint min2 = gst_value_get_int_range_min (subtrahend);
2872 gint max2 = gst_value_get_int_range_max (subtrahend);
2874 if (max2 == G_MAXINT && min2 == G_MININT) {
2876 } else if (max2 == G_MAXINT) {
2877 return gst_value_create_new_range (dest, min1, MIN (min2 - 1, max1), 1, 0);
2878 } else if (min2 == G_MININT) {
2879 return gst_value_create_new_range (dest, MAX (max2 + 1, min1), max1, 1, 0);
2881 return gst_value_create_new_range (dest, min1, MIN (min2 - 1, max1),
2882 MAX (max2 + 1, min1), max1);
2887 gst_value_subtract_int64_int64_range (GValue * dest, const GValue * minuend,
2888 const GValue * subtrahend)
2890 gint64 min = gst_value_get_int64_range_min (subtrahend);
2891 gint64 max = gst_value_get_int64_range_max (subtrahend);
2892 gint64 val = g_value_get_int64 (minuend);
2894 /* subtracting a range from an int64 only works if the int64 is not in the
2896 if (val < min || val > max) {
2897 /* and the result is the int64 */
2899 gst_value_init_and_copy (dest, minuend);
2905 /* creates a new int64 range based on input values.
2908 gst_value_create_new_int64_range (GValue * dest, gint64 min1, gint64 max1,
2909 gint64 min2, gint64 max2)
2913 GValue *pv1, *pv2; /* yeah, hungarian! */
2915 if (min1 <= max1 && min2 <= max2) {
2918 } else if (min1 <= max1) {
2921 } else if (min2 <= max2) {
2932 g_value_init (pv1, GST_TYPE_INT64_RANGE);
2933 gst_value_set_int64_range (pv1, min1, max1);
2934 } else if (min1 == max1) {
2935 g_value_init (pv1, G_TYPE_INT64);
2936 g_value_set_int64 (pv1, min1);
2939 g_value_init (pv2, GST_TYPE_INT64_RANGE);
2940 gst_value_set_int64_range (pv2, min2, max2);
2941 } else if (min2 == max2) {
2942 g_value_init (pv2, G_TYPE_INT64);
2943 g_value_set_int64 (pv2, min2);
2946 if (min1 <= max1 && min2 <= max2) {
2947 gst_value_list_concat (dest, pv1, pv2);
2948 g_value_unset (pv1);
2949 g_value_unset (pv2);
2955 gst_value_subtract_int64_range_int64 (GValue * dest, const GValue * minuend,
2956 const GValue * subtrahend)
2958 gint64 min = gst_value_get_int64_range_min (minuend);
2959 gint64 max = gst_value_get_int64_range_max (minuend);
2960 gint64 val = g_value_get_int64 (subtrahend);
2962 g_return_val_if_fail (min < max, FALSE);
2964 /* value is outside of the range, return range unchanged */
2965 if (val < min || val > max) {
2967 gst_value_init_and_copy (dest, minuend);
2970 /* max must be MAXINT64 too as val <= max */
2971 if (val == G_MAXINT64) {
2975 /* min must be MININT64 too as val >= max */
2976 if (val == G_MININT64) {
2981 gst_value_create_new_int64_range (dest, min, val - 1, val + 1, max);
2987 gst_value_subtract_int64_range_int64_range (GValue * dest,
2988 const GValue * minuend, const GValue * subtrahend)
2990 gint64 min1 = gst_value_get_int64_range_min (minuend);
2991 gint64 max1 = gst_value_get_int64_range_max (minuend);
2992 gint64 min2 = gst_value_get_int64_range_min (subtrahend);
2993 gint64 max2 = gst_value_get_int64_range_max (subtrahend);
2995 if (max2 == G_MAXINT64 && min2 == G_MININT64) {
2997 } else if (max2 == G_MAXINT64) {
2998 return gst_value_create_new_int64_range (dest, min1, MIN (min2 - 1, max1),
3000 } else if (min2 == G_MININT64) {
3001 return gst_value_create_new_int64_range (dest, MAX (max2 + 1, min1), max1,
3004 return gst_value_create_new_int64_range (dest, min1, MIN (min2 - 1, max1),
3005 MAX (max2 + 1, min1), max1);
3010 gst_value_subtract_double_double_range (GValue * dest, const GValue * minuend,
3011 const GValue * subtrahend)
3013 gdouble min = gst_value_get_double_range_min (subtrahend);
3014 gdouble max = gst_value_get_double_range_max (subtrahend);
3015 gdouble val = g_value_get_double (minuend);
3017 if (val < min || val > max) {
3019 gst_value_init_and_copy (dest, minuend);
3026 gst_value_subtract_double_range_double (GValue * dest, const GValue * minuend,
3027 const GValue * subtrahend)
3029 /* since we don't have open ranges, we cannot create a hole in
3030 * a double range. We return the original range */
3032 gst_value_init_and_copy (dest, minuend);
3037 gst_value_subtract_double_range_double_range (GValue * dest,
3038 const GValue * minuend, const GValue * subtrahend)
3040 /* since we don't have open ranges, we have to approximate */
3041 /* done like with ints */
3042 gdouble min1 = gst_value_get_double_range_min (minuend);
3043 gdouble max2 = gst_value_get_double_range_max (minuend);
3044 gdouble max1 = MIN (gst_value_get_double_range_min (subtrahend), max2);
3045 gdouble min2 = MAX (gst_value_get_double_range_max (subtrahend), min1);
3048 GValue *pv1, *pv2; /* yeah, hungarian! */
3050 if (min1 < max1 && min2 < max2) {
3053 } else if (min1 < max1) {
3056 } else if (min2 < max2) {
3067 g_value_init (pv1, GST_TYPE_DOUBLE_RANGE);
3068 gst_value_set_double_range (pv1, min1, max1);
3071 g_value_init (pv2, GST_TYPE_DOUBLE_RANGE);
3072 gst_value_set_double_range (pv2, min2, max2);
3075 if (min1 < max1 && min2 < max2) {
3076 gst_value_list_concat (dest, pv1, pv2);
3077 g_value_unset (pv1);
3078 g_value_unset (pv2);
3084 gst_value_subtract_from_list (GValue * dest, const GValue * minuend,
3085 const GValue * subtrahend)
3088 GValue subtraction = { 0, };
3089 gboolean ret = FALSE;
3092 ltype = gst_value_list_get_type ();
3094 size = VALUE_LIST_SIZE (minuend);
3095 for (i = 0; i < size; i++) {
3096 const GValue *cur = VALUE_LIST_GET_VALUE (minuend, i);
3098 /* quicker version when we can discard the result */
3100 if (gst_value_subtract (NULL, cur, subtrahend)) {
3107 if (gst_value_subtract (&subtraction, cur, subtrahend)) {
3109 gst_value_init_and_copy (dest, &subtraction);
3111 } else if (G_VALUE_HOLDS (dest, ltype)
3112 && !G_VALUE_HOLDS (&subtraction, ltype)) {
3113 gst_value_list_append_value (dest, &subtraction);
3115 GValue temp = { 0, };
3117 gst_value_init_and_copy (&temp, dest);
3118 g_value_unset (dest);
3119 gst_value_list_concat (dest, &temp, &subtraction);
3120 g_value_unset (&temp);
3122 g_value_unset (&subtraction);
3129 gst_value_subtract_list (GValue * dest, const GValue * minuend,
3130 const GValue * subtrahend)
3133 GValue data[2] = { {0,}, {0,} };
3134 GValue *subtraction = &data[0], *result = &data[1];
3136 gst_value_init_and_copy (result, minuend);
3137 size = VALUE_LIST_SIZE (subtrahend);
3138 for (i = 0; i < size; i++) {
3139 const GValue *cur = VALUE_LIST_GET_VALUE (subtrahend, i);
3141 if (gst_value_subtract (subtraction, result, cur)) {
3142 GValue *temp = result;
3144 result = subtraction;
3146 g_value_unset (subtraction);
3148 g_value_unset (result);
3153 gst_value_init_and_copy (dest, result);
3154 g_value_unset (result);
3159 gst_value_subtract_fraction_fraction_range (GValue * dest,
3160 const GValue * minuend, const GValue * subtrahend)
3162 const GValue *min = gst_value_get_fraction_range_min (subtrahend);
3163 const GValue *max = gst_value_get_fraction_range_max (subtrahend);
3164 GstValueCompareFunc compare;
3166 if ((compare = gst_value_get_compare_func (minuend))) {
3167 /* subtracting a range from an fraction only works if the fraction
3168 * is not in the range */
3169 if (gst_value_compare_with_func (minuend, min, compare) ==
3170 GST_VALUE_LESS_THAN ||
3171 gst_value_compare_with_func (minuend, max, compare) ==
3172 GST_VALUE_GREATER_THAN) {
3173 /* and the result is the value */
3175 gst_value_init_and_copy (dest, minuend);
3183 gst_value_subtract_fraction_range_fraction (GValue * dest,
3184 const GValue * minuend, const GValue * subtrahend)
3186 /* since we don't have open ranges, we cannot create a hole in
3187 * a range. We return the original range */
3189 gst_value_init_and_copy (dest, minuend);
3194 gst_value_subtract_fraction_range_fraction_range (GValue * dest,
3195 const GValue * minuend, const GValue * subtrahend)
3197 /* since we don't have open ranges, we have to approximate */
3198 /* done like with ints and doubles. Creates a list of 2 fraction ranges */
3199 const GValue *min1 = gst_value_get_fraction_range_min (minuend);
3200 const GValue *max2 = gst_value_get_fraction_range_max (minuend);
3201 const GValue *max1 = gst_value_get_fraction_range_min (subtrahend);
3202 const GValue *min2 = gst_value_get_fraction_range_max (subtrahend);
3206 GValue *pv1, *pv2; /* yeah, hungarian! */
3207 GstValueCompareFunc compare;
3209 g_return_val_if_fail (min1 != NULL && max1 != NULL, FALSE);
3210 g_return_val_if_fail (min2 != NULL && max2 != NULL, FALSE);
3212 compare = gst_value_get_compare_func (min1);
3213 g_return_val_if_fail (compare, FALSE);
3215 cmp1 = gst_value_compare_with_func (max2, max1, compare);
3216 g_return_val_if_fail (cmp1 != GST_VALUE_UNORDERED, FALSE);
3217 if (cmp1 == GST_VALUE_LESS_THAN)
3219 cmp1 = gst_value_compare_with_func (min1, min2, compare);
3220 g_return_val_if_fail (cmp1 != GST_VALUE_UNORDERED, FALSE);
3221 if (cmp1 == GST_VALUE_GREATER_THAN)
3224 cmp1 = gst_value_compare_with_func (min1, max1, compare);
3225 cmp2 = gst_value_compare_with_func (min2, max2, compare);
3227 if (cmp1 == GST_VALUE_LESS_THAN && cmp2 == GST_VALUE_LESS_THAN) {
3230 } else if (cmp1 == GST_VALUE_LESS_THAN) {
3233 } else if (cmp2 == GST_VALUE_LESS_THAN) {
3243 if (cmp1 == GST_VALUE_LESS_THAN) {
3244 g_value_init (pv1, GST_TYPE_FRACTION_RANGE);
3245 gst_value_set_fraction_range (pv1, min1, max1);
3247 if (cmp2 == GST_VALUE_LESS_THAN) {
3248 g_value_init (pv2, GST_TYPE_FRACTION_RANGE);
3249 gst_value_set_fraction_range (pv2, min2, max2);
3252 if (cmp1 == GST_VALUE_LESS_THAN && cmp2 == GST_VALUE_LESS_THAN) {
3253 gst_value_list_concat (dest, pv1, pv2);
3254 g_value_unset (pv1);
3255 g_value_unset (pv2);
3266 * gst_value_get_compare_func:
3267 * @value1: a value to get the compare function for
3269 * Determines the compare function to be used with values of the same type as
3270 * @value1. The function can be given to gst_value_compare_with_func().
3272 * Returns: A #GstValueCompareFunc value
3274 static GstValueCompareFunc
3275 gst_value_get_compare_func (const GValue * value1)
3277 GstValueTable *table, *best = NULL;
3281 type1 = G_VALUE_TYPE (value1);
3283 /* this is a fast check */
3284 best = gst_value_hash_lookup_type (type1);
3287 if (G_UNLIKELY (!best || !best->compare)) {
3288 guint len = gst_value_table->len;
3291 for (i = 0; i < len; i++) {
3292 table = &g_array_index (gst_value_table, GstValueTable, i);
3293 if (table->compare && g_type_is_a (type1, table->type)) {
3294 if (!best || g_type_is_a (table->type, best->type))
3299 if (G_LIKELY (best))
3300 return best->compare;
3306 * gst_value_can_compare:
3307 * @value1: a value to compare
3308 * @value2: another value to compare
3310 * Determines if @value1 and @value2 can be compared.
3312 * Returns: TRUE if the values can be compared
3315 gst_value_can_compare (const GValue * value1, const GValue * value2)
3317 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
3318 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
3320 if (G_VALUE_TYPE (value1) != G_VALUE_TYPE (value2))
3323 return gst_value_get_compare_func (value1) != NULL;
3327 gst_value_list_equals_range (const GValue * list, const GValue * value)
3329 const GValue *first;
3332 g_return_val_if_fail (G_IS_VALUE (list), FALSE);
3333 g_return_val_if_fail (G_IS_VALUE (value), FALSE);
3334 g_return_val_if_fail (GST_VALUE_HOLDS_LIST (list), FALSE);
3336 /* TODO: compare against an empty list ? No type though... */
3337 list_size = VALUE_LIST_SIZE (list);
3341 /* compare the basic types - they have to match */
3342 first = VALUE_LIST_GET_VALUE (list, 0);
3343 #define CHECK_TYPES(type,prefix) \
3344 (prefix##_VALUE_HOLDS_##type(first) && GST_VALUE_HOLDS_##type##_RANGE (value))
3345 if (CHECK_TYPES (INT, G)) {
3346 const gint rmin = gst_value_get_int_range_min (value);
3347 const gint rmax = gst_value_get_int_range_max (value);
3348 /* note: this will overflow for min 0 and max INT_MAX, but this
3349 would only be equal to a list of INT_MAX elements, which seems
3351 if (list_size != rmax - rmin + 1)
3353 for (n = 0; n < list_size; ++n) {
3354 gint v = g_value_get_int (VALUE_LIST_GET_VALUE (list, n));
3355 if (v < rmin || v > rmax) {
3360 } else if (CHECK_TYPES (INT64, G)) {
3361 const gint64 rmin = gst_value_get_int64_range_min (value);
3362 const gint64 rmax = gst_value_get_int64_range_max (value);
3363 GST_DEBUG ("List/range of int64s");
3364 if (list_size != rmax - rmin + 1)
3366 for (n = 0; n < list_size; ++n) {
3367 gint64 v = g_value_get_int64 (VALUE_LIST_GET_VALUE (list, n));
3368 if (v < rmin || v > rmax)
3375 /* other combinations don't make sense for equality */
3380 * gst_value_compare:
3381 * @value1: a value to compare
3382 * @value2: another value to compare
3384 * Compares @value1 and @value2. If @value1 and @value2 cannot be
3385 * compared, the function returns GST_VALUE_UNORDERED. Otherwise,
3386 * if @value1 is greater than @value2, GST_VALUE_GREATER_THAN is returned.
3387 * If @value1 is less than @value2, GST_VALUE_LESS_THAN is returned.
3388 * If the values are equal, GST_VALUE_EQUAL is returned.
3390 * Returns: comparison result
3393 gst_value_compare (const GValue * value1, const GValue * value2)
3395 GstValueCompareFunc compare;
3398 g_return_val_if_fail (G_IS_VALUE (value1), GST_VALUE_LESS_THAN);
3399 g_return_val_if_fail (G_IS_VALUE (value2), GST_VALUE_GREATER_THAN);
3401 /* Special cases: lists and scalar values ("{ 1 }" and "1" are equal),
3402 as well as lists and ranges ("{ 1, 2 }" and "[ 1, 2 ]" are equal) */
3403 ltype = gst_value_list_get_type ();
3404 if (G_VALUE_HOLDS (value1, ltype) && !G_VALUE_HOLDS (value2, ltype)) {
3406 if (gst_value_list_equals_range (value1, value2)) {
3407 return GST_VALUE_EQUAL;
3408 } else if (gst_value_list_get_size (value1) == 1) {
3411 elt = gst_value_list_get_value (value1, 0);
3412 return gst_value_compare (elt, value2);
3414 } else if (G_VALUE_HOLDS (value2, ltype) && !G_VALUE_HOLDS (value1, ltype)) {
3415 if (gst_value_list_equals_range (value2, value1)) {
3416 return GST_VALUE_EQUAL;
3417 } else if (gst_value_list_get_size (value2) == 1) {
3420 elt = gst_value_list_get_value (value2, 0);
3421 return gst_value_compare (elt, value1);
3425 if (G_VALUE_TYPE (value1) != G_VALUE_TYPE (value2))
3426 return GST_VALUE_UNORDERED;
3428 compare = gst_value_get_compare_func (value1);
3430 return compare (value1, value2);
3433 g_critical ("unable to compare values of type %s\n",
3434 g_type_name (G_VALUE_TYPE (value1)));
3435 return GST_VALUE_UNORDERED;
3439 * gst_value_compare_with_func:
3440 * @value1: a value to compare
3441 * @value2: another value to compare
3442 * @compare: compare function
3444 * Compares @value1 and @value2 using the @compare function. Works like
3445 * gst_value_compare() but allows to save time determining the compare function
3448 * Returns: comparison result
3451 gst_value_compare_with_func (const GValue * value1, const GValue * value2,
3452 GstValueCompareFunc compare)
3456 if (G_VALUE_TYPE (value1) != G_VALUE_TYPE (value2))
3457 return GST_VALUE_UNORDERED;
3459 return compare (value1, value2);
3465 * gst_value_can_union:
3466 * @value1: a value to union
3467 * @value2: another value to union
3469 * Determines if @value1 and @value2 can be non-trivially unioned.
3470 * Any two values can be trivially unioned by adding both of them
3471 * to a GstValueList. However, certain types have the possibility
3472 * to be unioned in a simpler way. For example, an integer range
3473 * and an integer can be unioned if the integer is a subset of the
3474 * integer range. If there is the possibility that two values can
3475 * be unioned, this function returns TRUE.
3477 * Returns: TRUE if there is a function allowing the two values to
3481 gst_value_can_union (const GValue * value1, const GValue * value2)
3483 GstValueUnionInfo *union_info;
3486 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
3487 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
3489 len = gst_value_union_funcs->len;
3491 for (i = 0; i < len; i++) {
3492 union_info = &g_array_index (gst_value_union_funcs, GstValueUnionInfo, i);
3493 if (union_info->type1 == G_VALUE_TYPE (value1) &&
3494 union_info->type2 == G_VALUE_TYPE (value2))
3496 if (union_info->type1 == G_VALUE_TYPE (value2) &&
3497 union_info->type2 == G_VALUE_TYPE (value1))
3506 * @dest: (out caller-allocates): the destination value
3507 * @value1: a value to union
3508 * @value2: another value to union
3510 * Creates a GValue corresponding to the union of @value1 and @value2.
3512 * Returns: always returns %TRUE
3514 /* FIXME: change return type to 'void'? */
3516 gst_value_union (GValue * dest, const GValue * value1, const GValue * value2)
3518 GstValueUnionInfo *union_info;
3521 g_return_val_if_fail (dest != NULL, FALSE);
3522 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
3523 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
3525 len = gst_value_union_funcs->len;
3527 for (i = 0; i < len; i++) {
3528 union_info = &g_array_index (gst_value_union_funcs, GstValueUnionInfo, i);
3529 if (union_info->type1 == G_VALUE_TYPE (value1) &&
3530 union_info->type2 == G_VALUE_TYPE (value2)) {
3531 if (union_info->func (dest, value1, value2)) {
3535 if (union_info->type1 == G_VALUE_TYPE (value2) &&
3536 union_info->type2 == G_VALUE_TYPE (value1)) {
3537 if (union_info->func (dest, value2, value1)) {
3543 gst_value_list_concat (dest, value1, value2);
3548 * gst_value_register_union_func: (skip)
3549 * @type1: a type to union
3550 * @type2: another type to union
3551 * @func: a function that implements creating a union between the two types
3553 * Registers a union function that can create a union between #GValue items
3554 * of the type @type1 and @type2.
3556 * Union functions should be registered at startup before any pipelines are
3557 * started, as gst_value_register_union_func() is not thread-safe and cannot
3558 * be used at the same time as gst_value_union() or gst_value_can_union().
3561 gst_value_register_union_func (GType type1, GType type2, GstValueUnionFunc func)
3563 GstValueUnionInfo union_info;
3565 union_info.type1 = type1;
3566 union_info.type2 = type2;
3567 union_info.func = func;
3569 g_array_append_val (gst_value_union_funcs, union_info);
3575 * gst_value_can_intersect:
3576 * @value1: a value to intersect
3577 * @value2: another value to intersect
3579 * Determines if intersecting two values will produce a valid result.
3580 * Two values will produce a valid intersection if they have the same
3581 * type, or if there is a method (registered by
3582 * gst_value_register_intersect_func()) to calculate the intersection.
3584 * Returns: TRUE if the values can intersect
3587 gst_value_can_intersect (const GValue * value1, const GValue * value2)
3589 GstValueIntersectInfo *intersect_info;
3591 GType ltype, type1, type2;
3593 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
3594 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
3596 ltype = gst_value_list_get_type ();
3599 if (G_VALUE_HOLDS (value1, ltype) || G_VALUE_HOLDS (value2, ltype))
3602 type1 = G_VALUE_TYPE (value1);
3603 type2 = G_VALUE_TYPE (value2);
3605 /* practically all GstValue types have a compare function (_can_compare=TRUE)
3606 * GstStructure and GstCaps have npot, but are intersectable */
3610 /* check registered intersect functions */
3611 len = gst_value_intersect_funcs->len;
3612 for (i = 0; i < len; i++) {
3613 intersect_info = &g_array_index (gst_value_intersect_funcs,
3614 GstValueIntersectInfo, i);
3615 if ((intersect_info->type1 == type1 && intersect_info->type2 == type2) ||
3616 (intersect_info->type1 == type2 && intersect_info->type2 == type1))
3620 return gst_value_can_compare (value1, value2);
3624 * gst_value_intersect:
3625 * @dest: (out caller-allocates) (transfer full): a uninitialized #GValue that will hold the calculated
3626 * intersection value. May be NULL if the resulting set if not needed.
3627 * @value1: a value to intersect
3628 * @value2: another value to intersect
3630 * Calculates the intersection of two values. If the values have
3631 * a non-empty intersection, the value representing the intersection
3632 * is placed in @dest, unless NULL. If the intersection is non-empty,
3633 * @dest is not modified.
3635 * Returns: TRUE if the intersection is non-empty
3638 gst_value_intersect (GValue * dest, const GValue * value1,
3639 const GValue * value2)
3641 GstValueIntersectInfo *intersect_info;
3643 GType ltype, type1, type2;
3645 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
3646 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
3648 ltype = gst_value_list_get_type ();
3650 /* special cases first */
3651 if (G_VALUE_HOLDS (value1, ltype))
3652 return gst_value_intersect_list (dest, value1, value2);
3653 if (G_VALUE_HOLDS (value2, ltype))
3654 return gst_value_intersect_list (dest, value2, value1);
3656 if (gst_value_compare (value1, value2) == GST_VALUE_EQUAL) {
3658 gst_value_init_and_copy (dest, value1);
3662 type1 = G_VALUE_TYPE (value1);
3663 type2 = G_VALUE_TYPE (value2);
3665 len = gst_value_intersect_funcs->len;
3666 for (i = 0; i < len; i++) {
3667 intersect_info = &g_array_index (gst_value_intersect_funcs,
3668 GstValueIntersectInfo, i);
3669 if (intersect_info->type1 == type1 && intersect_info->type2 == type2) {
3670 return intersect_info->func (dest, value1, value2);
3672 if (intersect_info->type1 == type2 && intersect_info->type2 == type1) {
3673 return intersect_info->func (dest, value2, value1);
3682 * gst_value_register_intersect_func: (skip)
3683 * @type1: the first type to intersect
3684 * @type2: the second type to intersect
3685 * @func: the intersection function
3687 * Registers a function that is called to calculate the intersection
3688 * of the values having the types @type1 and @type2.
3690 * Intersect functions should be registered at startup before any pipelines are
3691 * started, as gst_value_register_intersect_func() is not thread-safe and
3692 * cannot be used at the same time as gst_value_intersect() or
3693 * gst_value_can_intersect().
3696 gst_value_register_intersect_func (GType type1, GType type2,
3697 GstValueIntersectFunc func)
3699 GstValueIntersectInfo intersect_info;
3701 intersect_info.type1 = type1;
3702 intersect_info.type2 = type2;
3703 intersect_info.func = func;
3705 g_array_append_val (gst_value_intersect_funcs, intersect_info);
3712 * gst_value_subtract:
3713 * @dest: (out caller-allocates): the destination value for the result if the
3714 * subtraction is not empty. May be NULL, in which case the resulting set
3715 * will not be computed, which can give a fair speedup.
3716 * @minuend: the value to subtract from
3717 * @subtrahend: the value to subtract
3719 * Subtracts @subtrahend from @minuend and stores the result in @dest.
3720 * Note that this means subtraction as in sets, not as in mathematics.
3722 * Returns: %TRUE if the subtraction is not empty
3725 gst_value_subtract (GValue * dest, const GValue * minuend,
3726 const GValue * subtrahend)
3728 GstValueSubtractInfo *info;
3730 GType ltype, mtype, stype;
3732 g_return_val_if_fail (G_IS_VALUE (minuend), FALSE);
3733 g_return_val_if_fail (G_IS_VALUE (subtrahend), FALSE);
3735 ltype = gst_value_list_get_type ();
3737 /* special cases first */
3738 if (G_VALUE_HOLDS (minuend, ltype))
3739 return gst_value_subtract_from_list (dest, minuend, subtrahend);
3740 if (G_VALUE_HOLDS (subtrahend, ltype))
3741 return gst_value_subtract_list (dest, minuend, subtrahend);
3743 mtype = G_VALUE_TYPE (minuend);
3744 stype = G_VALUE_TYPE (subtrahend);
3746 len = gst_value_subtract_funcs->len;
3747 for (i = 0; i < len; i++) {
3748 info = &g_array_index (gst_value_subtract_funcs, GstValueSubtractInfo, i);
3749 if (info->minuend == mtype && info->subtrahend == stype) {
3750 return info->func (dest, minuend, subtrahend);
3754 if (gst_value_compare (minuend, subtrahend) != GST_VALUE_EQUAL) {
3756 gst_value_init_and_copy (dest, minuend);
3765 gst_value_subtract (GValue * dest, const GValue * minuend,
3766 const GValue * subtrahend)
3768 gboolean ret = gst_value_subtract2 (dest, minuend, subtrahend);
3770 g_printerr ("\"%s\" - \"%s\" = \"%s\"\n", gst_value_serialize (minuend),
3771 gst_value_serialize (subtrahend),
3772 ret ? gst_value_serialize (dest) : "---");
3778 * gst_value_can_subtract:
3779 * @minuend: the value to subtract from
3780 * @subtrahend: the value to subtract
3782 * Checks if it's possible to subtract @subtrahend from @minuend.
3784 * Returns: TRUE if a subtraction is possible
3787 gst_value_can_subtract (const GValue * minuend, const GValue * subtrahend)
3789 GstValueSubtractInfo *info;
3791 GType ltype, mtype, stype;
3793 g_return_val_if_fail (G_IS_VALUE (minuend), FALSE);
3794 g_return_val_if_fail (G_IS_VALUE (subtrahend), FALSE);
3796 ltype = gst_value_list_get_type ();
3799 if (G_VALUE_HOLDS (minuend, ltype) || G_VALUE_HOLDS (subtrahend, ltype))
3802 mtype = G_VALUE_TYPE (minuend);
3803 stype = G_VALUE_TYPE (subtrahend);
3805 len = gst_value_subtract_funcs->len;
3806 for (i = 0; i < len; i++) {
3807 info = &g_array_index (gst_value_subtract_funcs, GstValueSubtractInfo, i);
3808 if (info->minuend == mtype && info->subtrahend == stype)
3812 return gst_value_can_compare (minuend, subtrahend);
3816 * gst_value_register_subtract_func: (skip)
3817 * @minuend_type: type of the minuend
3818 * @subtrahend_type: type of the subtrahend
3819 * @func: function to use
3821 * Registers @func as a function capable of subtracting the values of
3822 * @subtrahend_type from values of @minuend_type.
3824 * Subtract functions should be registered at startup before any pipelines are
3825 * started, as gst_value_register_subtract_func() is not thread-safe and
3826 * cannot be used at the same time as gst_value_subtract().
3829 gst_value_register_subtract_func (GType minuend_type, GType subtrahend_type,
3830 GstValueSubtractFunc func)
3832 GstValueSubtractInfo info;
3834 /* one type must be unfixed, other subtractions can be done as comparisons,
3835 * special case: bitmasks */
3836 if (minuend_type != GST_TYPE_BITMASK)
3837 g_return_if_fail (!gst_type_is_fixed (minuend_type)
3838 || !gst_type_is_fixed (subtrahend_type));
3840 info.minuend = minuend_type;
3841 info.subtrahend = subtrahend_type;
3844 g_array_append_val (gst_value_subtract_funcs, info);
3848 * gst_value_register:
3849 * @table: structure containing functions to register
3851 * Registers functions to perform calculations on #GValue items of a given
3852 * type. Each type can only be added once.
3855 gst_value_register (const GstValueTable * table)
3857 GstValueTable *found;
3859 g_return_if_fail (table != NULL);
3861 g_array_append_val (gst_value_table, *table);
3863 found = gst_value_hash_lookup_type (table->type);
3865 g_warning ("adding type %s multiple times", g_type_name (table->type));
3867 /* FIXME: we're not really doing the const justice, we assume the table is
3869 gst_value_hash_add_type (table->type, table);
3873 * gst_value_init_and_copy:
3874 * @dest: (out caller-allocates): the target value
3875 * @src: the source value
3877 * Initialises the target value to be of the same type as source and then copies
3878 * the contents from source to target.
3881 gst_value_init_and_copy (GValue * dest, const GValue * src)
3883 g_return_if_fail (G_IS_VALUE (src));
3884 g_return_if_fail (dest != NULL);
3886 g_value_init (dest, G_VALUE_TYPE (src));
3887 g_value_copy (src, dest);
3891 * gst_value_serialize:
3892 * @value: a #GValue to serialize
3894 * tries to transform the given @value into a string representation that allows
3895 * getting back this string later on using gst_value_deserialize().
3897 * Free-function: g_free
3899 * Returns: (transfer full): the serialization for @value or NULL if none exists
3902 gst_value_serialize (const GValue * value)
3905 GValue s_val = { 0 };
3906 GstValueTable *table, *best;
3910 g_return_val_if_fail (G_IS_VALUE (value), NULL);
3912 type = G_VALUE_TYPE (value);
3914 best = gst_value_hash_lookup_type (type);
3916 if (G_UNLIKELY (!best || !best->serialize)) {
3917 len = gst_value_table->len;
3919 for (i = 0; i < len; i++) {
3920 table = &g_array_index (gst_value_table, GstValueTable, i);
3921 if (table->serialize && g_type_is_a (type, table->type)) {
3922 if (!best || g_type_is_a (table->type, best->type))
3927 if (G_LIKELY (best))
3928 return best->serialize (value);
3930 g_value_init (&s_val, G_TYPE_STRING);
3931 if (g_value_transform (value, &s_val)) {
3932 s = gst_string_wrap (g_value_get_string (&s_val));
3936 g_value_unset (&s_val);
3942 * gst_value_deserialize:
3943 * @dest: (out caller-allocates): #GValue to fill with contents of
3945 * @src: string to deserialize
3947 * Tries to deserialize a string into the type specified by the given GValue.
3948 * If the operation succeeds, TRUE is returned, FALSE otherwise.
3950 * Returns: TRUE on success
3953 gst_value_deserialize (GValue * dest, const gchar * src)
3955 GstValueTable *table, *best;
3959 g_return_val_if_fail (src != NULL, FALSE);
3960 g_return_val_if_fail (G_IS_VALUE (dest), FALSE);
3962 type = G_VALUE_TYPE (dest);
3964 best = gst_value_hash_lookup_type (type);
3965 if (G_UNLIKELY (!best || !best->deserialize)) {
3966 len = gst_value_table->len;
3968 for (i = 0; i < len; i++) {
3969 table = &g_array_index (gst_value_table, GstValueTable, i);
3970 if (table->deserialize && g_type_is_a (type, table->type)) {
3971 if (!best || g_type_is_a (table->type, best->type))
3976 if (G_LIKELY (best))
3977 return best->deserialize (dest, src);
3983 * gst_value_is_fixed:
3984 * @value: the #GValue to check
3986 * Tests if the given GValue, if available in a GstStructure (or any other
3987 * container) contains a "fixed" (which means: one value) or an "unfixed"
3988 * (which means: multiple possible values, such as data lists or data
3991 * Returns: true if the value is "fixed".
3995 gst_value_is_fixed (const GValue * value)
3999 g_return_val_if_fail (G_IS_VALUE (value), FALSE);
4001 type = G_VALUE_TYPE (value);
4003 /* the most common types are just basic plain glib types */
4004 if (type <= G_TYPE_MAKE_FUNDAMENTAL (G_TYPE_RESERVED_GLIB_LAST)) {
4008 if (type == GST_TYPE_ARRAY) {
4012 /* check recursively */
4013 size = gst_value_array_get_size (value);
4014 for (n = 0; n < size; n++) {
4015 kid = gst_value_array_get_value (value, n);
4016 if (!gst_value_is_fixed (kid))
4021 return gst_type_is_fixed (type);
4026 * @dest: the #GValue destination
4027 * @src: the #GValue to fixate
4029 * Fixate @src into a new value @dest.
4030 * For ranges, the first element is taken. For lists and arrays, the
4031 * first item is fixated and returned.
4032 * If @src is already fixed, this function returns FALSE.
4034 * Returns: true if @dest contains a fixated version of @src.
4037 gst_value_fixate (GValue * dest, const GValue * src)
4039 g_return_val_if_fail (G_IS_VALUE (src), FALSE);
4040 g_return_val_if_fail (dest != NULL, FALSE);
4042 if (G_VALUE_TYPE (src) == GST_TYPE_INT_RANGE) {
4043 g_value_init (dest, G_TYPE_INT);
4044 g_value_set_int (dest, gst_value_get_int_range_min (src));
4045 } else if (G_VALUE_TYPE (src) == GST_TYPE_DOUBLE_RANGE) {
4046 g_value_init (dest, G_TYPE_DOUBLE);
4047 g_value_set_double (dest, gst_value_get_double_range_min (src));
4048 } else if (G_VALUE_TYPE (src) == GST_TYPE_FRACTION_RANGE) {
4049 gst_value_init_and_copy (dest, gst_value_get_fraction_range_min (src));
4050 } else if (G_VALUE_TYPE (src) == GST_TYPE_LIST) {
4051 GValue temp = { 0 };
4053 /* list could be empty */
4054 if (gst_value_list_get_size (src) <= 0)
4057 gst_value_init_and_copy (&temp, gst_value_list_get_value (src, 0));
4059 if (!gst_value_fixate (dest, &temp))
4060 gst_value_init_and_copy (dest, &temp);
4061 g_value_unset (&temp);
4062 } else if (G_VALUE_TYPE (src) == GST_TYPE_ARRAY) {
4063 gboolean res = FALSE;
4066 len = gst_value_array_get_size (src);
4067 g_value_init (dest, GST_TYPE_ARRAY);
4068 for (n = 0; n < len; n++) {
4070 const GValue *orig_kid = gst_value_array_get_value (src, n);
4072 if (!gst_value_fixate (&kid, orig_kid))
4073 gst_value_init_and_copy (&kid, orig_kid);
4076 gst_value_array_append_value (dest, &kid);
4077 g_value_unset (&kid);
4081 g_value_unset (dest);
4095 /* helper functions */
4097 gst_value_init_fraction (GValue * value)
4099 value->data[0].v_int = 0;
4100 value->data[1].v_int = 1;
4104 gst_value_copy_fraction (const GValue * src_value, GValue * dest_value)
4106 dest_value->data[0].v_int = src_value->data[0].v_int;
4107 dest_value->data[1].v_int = src_value->data[1].v_int;
4111 gst_value_collect_fraction (GValue * value, guint n_collect_values,
4112 GTypeCValue * collect_values, guint collect_flags)
4114 if (n_collect_values != 2)
4115 return g_strdup_printf ("not enough value locations for `%s' passed",
4116 G_VALUE_TYPE_NAME (value));
4117 if (collect_values[1].v_int == 0)
4118 return g_strdup_printf ("passed '0' as denominator for `%s'",
4119 G_VALUE_TYPE_NAME (value));
4120 if (collect_values[0].v_int < -G_MAXINT)
4123 ("passed value smaller than -G_MAXINT as numerator for `%s'",
4124 G_VALUE_TYPE_NAME (value));
4125 if (collect_values[1].v_int < -G_MAXINT)
4128 ("passed value smaller than -G_MAXINT as denominator for `%s'",
4129 G_VALUE_TYPE_NAME (value));
4131 gst_value_set_fraction (value,
4132 collect_values[0].v_int, collect_values[1].v_int);
4138 gst_value_lcopy_fraction (const GValue * value, guint n_collect_values,
4139 GTypeCValue * collect_values, guint collect_flags)
4141 gint *numerator = collect_values[0].v_pointer;
4142 gint *denominator = collect_values[1].v_pointer;
4145 return g_strdup_printf ("numerator for `%s' passed as NULL",
4146 G_VALUE_TYPE_NAME (value));
4148 return g_strdup_printf ("denominator for `%s' passed as NULL",
4149 G_VALUE_TYPE_NAME (value));
4151 *numerator = value->data[0].v_int;
4152 *denominator = value->data[1].v_int;
4158 * gst_value_set_fraction:
4159 * @value: a GValue initialized to #GST_TYPE_FRACTION
4160 * @numerator: the numerator of the fraction
4161 * @denominator: the denominator of the fraction
4163 * Sets @value to the fraction specified by @numerator over @denominator.
4164 * The fraction gets reduced to the smallest numerator and denominator,
4165 * and if necessary the sign is moved to the numerator.
4168 gst_value_set_fraction (GValue * value, gint numerator, gint denominator)
4172 g_return_if_fail (GST_VALUE_HOLDS_FRACTION (value));
4173 g_return_if_fail (denominator != 0);
4174 g_return_if_fail (denominator >= -G_MAXINT);
4175 g_return_if_fail (numerator >= -G_MAXINT);
4177 /* normalize sign */
4178 if (denominator < 0) {
4179 numerator = -numerator;
4180 denominator = -denominator;
4183 /* check for reduction */
4184 gcd = gst_util_greatest_common_divisor (numerator, denominator);
4190 g_assert (denominator > 0);
4192 value->data[0].v_int = numerator;
4193 value->data[1].v_int = denominator;
4197 * gst_value_get_fraction_numerator:
4198 * @value: a GValue initialized to #GST_TYPE_FRACTION
4200 * Gets the numerator of the fraction specified by @value.
4202 * Returns: the numerator of the fraction.
4205 gst_value_get_fraction_numerator (const GValue * value)
4207 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (value), 0);
4209 return value->data[0].v_int;
4213 * gst_value_get_fraction_denominator:
4214 * @value: a GValue initialized to #GST_TYPE_FRACTION
4216 * Gets the denominator of the fraction specified by @value.
4218 * Returns: the denominator of the fraction.
4221 gst_value_get_fraction_denominator (const GValue * value)
4223 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (value), 1);
4225 return value->data[1].v_int;
4229 * gst_value_fraction_multiply:
4230 * @product: a GValue initialized to #GST_TYPE_FRACTION
4231 * @factor1: a GValue initialized to #GST_TYPE_FRACTION
4232 * @factor2: a GValue initialized to #GST_TYPE_FRACTION
4234 * Multiplies the two #GValue items containing a #GST_TYPE_FRACTION and sets
4235 * @product to the product of the two fractions.
4237 * Returns: FALSE in case of an error (like integer overflow), TRUE otherwise.
4240 gst_value_fraction_multiply (GValue * product, const GValue * factor1,
4241 const GValue * factor2)
4243 gint n1, n2, d1, d2;
4246 g_return_val_if_fail (product != NULL, FALSE);
4247 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (factor1), FALSE);
4248 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (factor2), FALSE);
4250 n1 = factor1->data[0].v_int;
4251 n2 = factor2->data[0].v_int;
4252 d1 = factor1->data[1].v_int;
4253 d2 = factor2->data[1].v_int;
4255 if (!gst_util_fraction_multiply (n1, d1, n2, d2, &res_n, &res_d))
4258 gst_value_set_fraction (product, res_n, res_d);
4264 * gst_value_fraction_subtract:
4265 * @dest: a GValue initialized to #GST_TYPE_FRACTION
4266 * @minuend: a GValue initialized to #GST_TYPE_FRACTION
4267 * @subtrahend: a GValue initialized to #GST_TYPE_FRACTION
4269 * Subtracts the @subtrahend from the @minuend and sets @dest to the result.
4271 * Returns: FALSE in case of an error (like integer overflow), TRUE otherwise.
4274 gst_value_fraction_subtract (GValue * dest,
4275 const GValue * minuend, const GValue * subtrahend)
4277 gint n1, n2, d1, d2;
4280 g_return_val_if_fail (dest != NULL, FALSE);
4281 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (minuend), FALSE);
4282 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (subtrahend), FALSE);
4284 n1 = minuend->data[0].v_int;
4285 n2 = subtrahend->data[0].v_int;
4286 d1 = minuend->data[1].v_int;
4287 d2 = subtrahend->data[1].v_int;
4289 if (!gst_util_fraction_add (n1, d1, -n2, d2, &res_n, &res_d))
4291 gst_value_set_fraction (dest, res_n, res_d);
4297 gst_value_serialize_fraction (const GValue * value)
4299 gint32 numerator = value->data[0].v_int;
4300 gint32 denominator = value->data[1].v_int;
4301 gboolean positive = TRUE;
4303 /* get the sign and make components absolute */
4304 if (numerator < 0) {
4305 numerator = -numerator;
4306 positive = !positive;
4308 if (denominator < 0) {
4309 denominator = -denominator;
4310 positive = !positive;
4313 return g_strdup_printf ("%s%d/%d",
4314 positive ? "" : "-", numerator, denominator);
4318 gst_value_deserialize_fraction (GValue * dest, const gchar * s)
4323 if (G_UNLIKELY (s == NULL))
4326 if (G_UNLIKELY (dest == NULL || !GST_VALUE_HOLDS_FRACTION (dest)))
4329 if (sscanf (s, "%d/%d%n", &num, &den, &num_chars) >= 2) {
4330 if (s[num_chars] != 0)
4335 gst_value_set_fraction (dest, num, den);
4337 } else if (g_ascii_strcasecmp (s, "1/max") == 0) {
4338 gst_value_set_fraction (dest, 1, G_MAXINT);
4340 } else if (sscanf (s, "%d%n", &num, &num_chars) >= 1) {
4341 if (s[num_chars] != 0)
4343 gst_value_set_fraction (dest, num, 1);
4345 } else if (g_ascii_strcasecmp (s, "min") == 0) {
4346 gst_value_set_fraction (dest, -G_MAXINT, 1);
4348 } else if (g_ascii_strcasecmp (s, "max") == 0) {
4349 gst_value_set_fraction (dest, G_MAXINT, 1);
4357 gst_value_transform_fraction_string (const GValue * src_value,
4358 GValue * dest_value)
4360 dest_value->data[0].v_pointer = gst_value_serialize_fraction (src_value);
4364 gst_value_transform_string_fraction (const GValue * src_value,
4365 GValue * dest_value)
4367 if (!gst_value_deserialize_fraction (dest_value,
4368 src_value->data[0].v_pointer))
4369 /* If the deserialize fails, ensure we leave the fraction in a
4370 * valid, if incorrect, state */
4371 gst_value_set_fraction (dest_value, 0, 1);
4375 gst_value_transform_double_fraction (const GValue * src_value,
4376 GValue * dest_value)
4378 gdouble src = g_value_get_double (src_value);
4381 gst_util_double_to_fraction (src, &n, &d);
4382 gst_value_set_fraction (dest_value, n, d);
4386 gst_value_transform_float_fraction (const GValue * src_value,
4387 GValue * dest_value)
4389 gfloat src = g_value_get_float (src_value);
4392 gst_util_double_to_fraction (src, &n, &d);
4393 gst_value_set_fraction (dest_value, n, d);
4397 gst_value_transform_fraction_double (const GValue * src_value,
4398 GValue * dest_value)
4400 dest_value->data[0].v_double = ((double) src_value->data[0].v_int) /
4401 ((double) src_value->data[1].v_int);
4405 gst_value_transform_fraction_float (const GValue * src_value,
4406 GValue * dest_value)
4408 dest_value->data[0].v_float = ((float) src_value->data[0].v_int) /
4409 ((float) src_value->data[1].v_int);
4413 gst_value_compare_fraction (const GValue * value1, const GValue * value2)
4419 n1 = value1->data[0].v_int;
4420 n2 = value2->data[0].v_int;
4421 d1 = value1->data[1].v_int;
4422 d2 = value2->data[1].v_int;
4424 /* fractions are reduced when set, so we can quickly see if they're equal */
4425 if (n1 == n2 && d1 == d2)
4426 return GST_VALUE_EQUAL;
4428 if (d1 == 0 && d2 == 0)
4429 return GST_VALUE_UNORDERED;
4431 return GST_VALUE_GREATER_THAN;
4433 return GST_VALUE_LESS_THAN;
4435 ret = gst_util_fraction_compare (n1, d1, n2, d2);
4437 return GST_VALUE_LESS_THAN;
4439 return GST_VALUE_GREATER_THAN;
4441 /* Equality can't happen here because we check for that
4443 g_return_val_if_reached (GST_VALUE_UNORDERED);
4451 gst_value_compare_date (const GValue * value1, const GValue * value2)
4453 const GDate *date1 = (const GDate *) g_value_get_boxed (value1);
4454 const GDate *date2 = (const GDate *) g_value_get_boxed (value2);
4458 return GST_VALUE_EQUAL;
4460 if ((date1 == NULL || !g_date_valid (date1))
4461 && (date2 != NULL && g_date_valid (date2))) {
4462 return GST_VALUE_LESS_THAN;
4465 if ((date2 == NULL || !g_date_valid (date2))
4466 && (date1 != NULL && g_date_valid (date1))) {
4467 return GST_VALUE_GREATER_THAN;
4470 if (date1 == NULL || date2 == NULL || !g_date_valid (date1)
4471 || !g_date_valid (date2)) {
4472 return GST_VALUE_UNORDERED;
4475 j1 = g_date_get_julian (date1);
4476 j2 = g_date_get_julian (date2);
4479 return GST_VALUE_EQUAL;
4481 return GST_VALUE_LESS_THAN;
4483 return GST_VALUE_GREATER_THAN;
4487 gst_value_serialize_date (const GValue * val)
4489 const GDate *date = (const GDate *) g_value_get_boxed (val);
4491 if (date == NULL || !g_date_valid (date))
4492 return g_strdup ("9999-99-99");
4494 return g_strdup_printf ("%04u-%02u-%02u", g_date_get_year (date),
4495 g_date_get_month (date), g_date_get_day (date));
4499 gst_value_deserialize_date (GValue * dest, const gchar * s)
4501 guint year, month, day;
4503 if (!s || sscanf (s, "%04u-%02u-%02u", &year, &month, &day) != 3)
4506 if (!g_date_valid_dmy (day, month, year))
4509 g_value_take_boxed (dest, g_date_new_dmy (day, month, year));
4518 gst_value_compare_date_time (const GValue * value1, const GValue * value2)
4520 const GstDateTime *date1 = (const GstDateTime *) g_value_get_boxed (value1);
4521 const GstDateTime *date2 = (const GstDateTime *) g_value_get_boxed (value2);
4525 return GST_VALUE_EQUAL;
4527 if ((date1 == NULL) && (date2 != NULL)) {
4528 return GST_VALUE_LESS_THAN;
4530 if ((date2 == NULL) && (date1 != NULL)) {
4531 return GST_VALUE_LESS_THAN;
4534 ret = priv_gst_date_time_compare (date1, date2);
4537 return GST_VALUE_EQUAL;
4539 return GST_VALUE_LESS_THAN;
4541 return GST_VALUE_GREATER_THAN;
4545 gst_value_serialize_date_time (const GValue * val)
4547 GstDateTime *date = (GstDateTime *) g_value_get_boxed (val);
4549 gint tzhour, tzminute;
4552 return g_strdup ("null");
4554 offset = gst_date_time_get_time_zone_offset (date);
4556 tzhour = (gint) ABS (offset);
4557 tzminute = (gint) ((ABS (offset) - tzhour) * 60);
4559 return g_strdup_printf ("\"%04d-%02d-%02dT%02d:%02d:%02d.%06d"
4560 "%c%02d%02d\"", gst_date_time_get_year (date),
4561 gst_date_time_get_month (date), gst_date_time_get_day (date),
4562 gst_date_time_get_hour (date), gst_date_time_get_minute (date),
4563 gst_date_time_get_second (date), gst_date_time_get_microsecond (date),
4564 offset >= 0 ? '+' : '-', tzhour, tzminute);
4568 gst_value_deserialize_date_time (GValue * dest, const gchar * s)
4570 gint year, month, day, hour, minute, second, usecond;
4573 gfloat tzoffset = 0;
4576 if (!s || strcmp (s, "null") == 0) {
4580 ret = sscanf (s, "%04d-%02d-%02dT%02d:%02d:%02d.%06d%c%04d",
4581 &year, &month, &day, &hour, &minute, &second, &usecond, &signal, &offset);
4583 tzoffset = (offset / 100) + ((offset % 100) / 60.0);
4585 tzoffset = -tzoffset;
4589 g_value_take_boxed (dest, gst_date_time_new (tzoffset, year, month, day, hour,
4590 minute, second + (usecond / 1000000.0)));
4595 gst_value_transform_date_string (const GValue * src_value, GValue * dest_value)
4597 dest_value->data[0].v_pointer = gst_value_serialize_date (src_value);
4601 gst_value_transform_string_date (const GValue * src_value, GValue * dest_value)
4603 gst_value_deserialize_date (dest_value, src_value->data[0].v_pointer);
4611 /* helper functions */
4613 gst_value_init_bitmask (GValue * value)
4615 value->data[0].v_uint64 = 0;
4619 gst_value_copy_bitmask (const GValue * src_value, GValue * dest_value)
4621 dest_value->data[0].v_uint64 = src_value->data[0].v_uint64;
4625 gst_value_collect_bitmask (GValue * value, guint n_collect_values,
4626 GTypeCValue * collect_values, guint collect_flags)
4628 if (n_collect_values != 1)
4629 return g_strdup_printf ("not enough value locations for `%s' passed",
4630 G_VALUE_TYPE_NAME (value));
4632 gst_value_set_bitmask (value, (guint64) collect_values[0].v_int64);
4638 gst_value_lcopy_bitmask (const GValue * value, guint n_collect_values,
4639 GTypeCValue * collect_values, guint collect_flags)
4641 guint64 *bitmask = collect_values[0].v_pointer;
4644 return g_strdup_printf ("value for `%s' passed as NULL",
4645 G_VALUE_TYPE_NAME (value));
4647 *bitmask = value->data[0].v_uint64;
4653 * gst_value_set_bitmask:
4654 * @value: a GValue initialized to #GST_TYPE_FRACTION
4655 * @bitmask: the bitmask
4657 * Sets @value to the bitmask specified by @bitmask.
4660 gst_value_set_bitmask (GValue * value, guint64 bitmask)
4662 g_return_if_fail (GST_VALUE_HOLDS_BITMASK (value));
4664 value->data[0].v_uint64 = bitmask;
4668 * gst_value_get_bitmask:
4669 * @value: a GValue initialized to #GST_TYPE_FRACTION
4671 * Gets the bitmask specified by @value.
4673 * Returns: the bitmask.
4676 gst_value_get_bitmask (const GValue * value)
4678 g_return_val_if_fail (GST_VALUE_HOLDS_BITMASK (value), 0);
4680 return value->data[0].v_uint64;
4684 gst_value_serialize_bitmask (const GValue * value)
4686 guint64 bitmask = value->data[0].v_uint64;
4688 return g_strdup_printf ("0x%016" G_GINT64_MODIFIER "x", bitmask);
4692 gst_value_deserialize_bitmask (GValue * dest, const gchar * s)
4694 gchar *endptr = NULL;
4697 if (G_UNLIKELY (s == NULL))
4700 if (G_UNLIKELY (dest == NULL || !GST_VALUE_HOLDS_BITMASK (dest)))
4703 val = g_ascii_strtoull (s, &endptr, 16);
4704 if (val == G_MAXUINT64 && (errno == ERANGE || errno == EINVAL))
4706 if (val == 0 && endptr == s)
4709 gst_value_set_bitmask (dest, val);
4715 gst_value_transform_bitmask_string (const GValue * src_value,
4716 GValue * dest_value)
4718 dest_value->data[0].v_pointer = gst_value_serialize_bitmask (src_value);
4722 gst_value_transform_string_bitmask (const GValue * src_value,
4723 GValue * dest_value)
4725 if (!gst_value_deserialize_bitmask (dest_value, src_value->data[0].v_pointer))
4726 gst_value_set_bitmask (dest_value, 0);
4730 gst_value_transform_uint64_bitmask (const GValue * src_value,
4731 GValue * dest_value)
4733 dest_value->data[0].v_uint64 = src_value->data[0].v_uint64;
4737 gst_value_transform_bitmask_uint64 (const GValue * src_value,
4738 GValue * dest_value)
4740 dest_value->data[0].v_uint64 = src_value->data[0].v_uint64;
4744 gst_value_intersect_bitmask_bitmask (GValue * dest, const GValue * src1,
4745 const GValue * src2)
4749 s1 = gst_value_get_bitmask (src1);
4750 s2 = gst_value_get_bitmask (src2);
4752 g_value_init (dest, GST_TYPE_BITMASK);
4753 gst_value_set_bitmask (dest, s1 & s2);
4759 gst_value_union_bitmask_bitmask (GValue * dest, const GValue * src1,
4760 const GValue * src2)
4764 s1 = gst_value_get_bitmask (src1);
4765 s2 = gst_value_get_bitmask (src2);
4767 g_value_init (dest, GST_TYPE_BITMASK);
4768 gst_value_set_bitmask (dest, s1 | s2);
4774 gst_value_subtract_bitmask_bitmask (GValue * dest,
4775 const GValue * minuend, const GValue * subtrahend)
4779 g_return_val_if_fail (GST_VALUE_HOLDS_BITMASK (minuend), FALSE);
4780 g_return_val_if_fail (GST_VALUE_HOLDS_BITMASK (subtrahend), FALSE);
4782 m = minuend->data[0].v_uint64;
4783 s = subtrahend->data[0].v_uint64;
4787 g_value_init (dest, GST_TYPE_BITMASK);
4788 gst_value_set_bitmask (dest, r);
4794 gst_value_compare_bitmask (const GValue * value1, const GValue * value2)
4798 v1 = value1->data[0].v_uint64;
4799 v2 = value2->data[0].v_uint64;
4802 return GST_VALUE_EQUAL;
4804 return GST_VALUE_UNORDERED;
4808 gst_value_transform_object_string (const GValue * src_value,
4809 GValue * dest_value)
4814 obj = g_value_get_object (src_value);
4817 g_strdup_printf ("(%s) %s", G_OBJECT_TYPE_NAME (obj),
4818 GST_OBJECT_NAME (obj));
4820 str = g_strdup ("NULL");
4823 dest_value->data[0].v_pointer = str;
4826 static GTypeInfo _info = {
4839 static GTypeFundamentalInfo _finfo = {
4843 #define FUNC_VALUE_GET_TYPE(type, name) \
4844 GType gst_ ## type ## _get_type (void) \
4846 static volatile GType gst_ ## type ## _type = 0; \
4848 if (g_once_init_enter (&gst_ ## type ## _type)) { \
4850 _info.value_table = & _gst_ ## type ## _value_table; \
4851 _type = g_type_register_fundamental ( \
4852 g_type_fundamental_next (), \
4853 name, &_info, &_finfo, 0); \
4854 g_once_init_leave(&gst_ ## type ## _type, _type); \
4857 return gst_ ## type ## _type; \
4860 static const GTypeValueTable _gst_int_range_value_table = {
4861 gst_value_init_int_range,
4863 gst_value_copy_int_range,
4866 gst_value_collect_int_range,
4868 gst_value_lcopy_int_range
4871 FUNC_VALUE_GET_TYPE (int_range, "GstIntRange");
4873 static const GTypeValueTable _gst_int64_range_value_table = {
4874 gst_value_init_int64_range,
4876 gst_value_copy_int64_range,
4879 gst_value_collect_int64_range,
4881 gst_value_lcopy_int64_range
4884 FUNC_VALUE_GET_TYPE (int64_range, "GstInt64Range");
4886 static const GTypeValueTable _gst_double_range_value_table = {
4887 gst_value_init_double_range,
4889 gst_value_copy_double_range,
4892 gst_value_collect_double_range,
4894 gst_value_lcopy_double_range
4897 FUNC_VALUE_GET_TYPE (double_range, "GstDoubleRange");
4899 static const GTypeValueTable _gst_fraction_range_value_table = {
4900 gst_value_init_fraction_range,
4901 gst_value_free_fraction_range,
4902 gst_value_copy_fraction_range,
4905 gst_value_collect_fraction_range,
4907 gst_value_lcopy_fraction_range
4910 FUNC_VALUE_GET_TYPE (fraction_range, "GstFractionRange");
4912 static const GTypeValueTable _gst_value_list_value_table = {
4913 gst_value_init_list_or_array,
4914 gst_value_free_list_or_array,
4915 gst_value_copy_list_or_array,
4916 gst_value_list_or_array_peek_pointer,
4918 gst_value_collect_list_or_array,
4920 gst_value_lcopy_list_or_array
4923 FUNC_VALUE_GET_TYPE (value_list, "GstValueList");
4925 static const GTypeValueTable _gst_value_array_value_table = {
4926 gst_value_init_list_or_array,
4927 gst_value_free_list_or_array,
4928 gst_value_copy_list_or_array,
4929 gst_value_list_or_array_peek_pointer,
4931 gst_value_collect_list_or_array,
4933 gst_value_lcopy_list_or_array
4936 FUNC_VALUE_GET_TYPE (value_array, "GstValueArray");
4938 static const GTypeValueTable _gst_fraction_value_table = {
4939 gst_value_init_fraction,
4941 gst_value_copy_fraction,
4944 gst_value_collect_fraction,
4946 gst_value_lcopy_fraction
4949 FUNC_VALUE_GET_TYPE (fraction, "GstFraction");
4952 gst_date_time_get_type (void)
4954 static GType gst_date_time_type = 0;
4956 if (G_UNLIKELY (gst_date_time_type == 0)) {
4957 gst_date_time_type = g_boxed_type_register_static ("GstDateTime",
4958 (GBoxedCopyFunc) gst_date_time_ref,
4959 (GBoxedFreeFunc) gst_date_time_unref);
4962 return gst_date_time_type;
4965 static const GTypeValueTable _gst_bitmask_value_table = {
4966 gst_value_init_bitmask,
4968 gst_value_copy_bitmask,
4971 gst_value_collect_bitmask,
4973 gst_value_lcopy_bitmask
4976 FUNC_VALUE_GET_TYPE (bitmask, "GstBitmask");
4980 _priv_gst_value_initialize (void)
4982 gst_value_table = g_array_new (FALSE, FALSE, sizeof (GstValueTable));
4983 gst_value_hash = g_hash_table_new (NULL, NULL);
4984 gst_value_union_funcs = g_array_new (FALSE, FALSE,
4985 sizeof (GstValueUnionInfo));
4986 gst_value_intersect_funcs = g_array_new (FALSE, FALSE,
4987 sizeof (GstValueIntersectInfo));
4988 gst_value_subtract_funcs = g_array_new (FALSE, FALSE,
4989 sizeof (GstValueSubtractInfo));
4992 static GstValueTable gst_value = {
4994 gst_value_compare_int_range,
4995 gst_value_serialize_int_range,
4996 gst_value_deserialize_int_range,
4999 gst_value.type = gst_int_range_get_type ();
5000 gst_value_register (&gst_value);
5004 static GstValueTable gst_value = {
5006 gst_value_compare_int64_range,
5007 gst_value_serialize_int64_range,
5008 gst_value_deserialize_int64_range,
5011 gst_value.type = gst_int64_range_get_type ();
5012 gst_value_register (&gst_value);
5016 static GstValueTable gst_value = {
5018 gst_value_compare_double_range,
5019 gst_value_serialize_double_range,
5020 gst_value_deserialize_double_range,
5023 gst_value.type = gst_double_range_get_type ();
5024 gst_value_register (&gst_value);
5028 static GstValueTable gst_value = {
5030 gst_value_compare_fraction_range,
5031 gst_value_serialize_fraction_range,
5032 gst_value_deserialize_fraction_range,
5035 gst_value.type = gst_fraction_range_get_type ();
5036 gst_value_register (&gst_value);
5040 static GstValueTable gst_value = {
5042 gst_value_compare_list,
5043 gst_value_serialize_list,
5044 gst_value_deserialize_list,
5047 gst_value.type = gst_value_list_get_type ();
5048 gst_value_register (&gst_value);
5052 static GstValueTable gst_value = {
5054 gst_value_compare_array,
5055 gst_value_serialize_array,
5056 gst_value_deserialize_array,
5059 gst_value.type = gst_value_array_get_type ();
5060 gst_value_register (&gst_value);
5065 static const GTypeValueTable value_table = {
5066 gst_value_init_buffer,
5068 gst_value_copy_buffer,
5071 NULL, /*gst_value_collect_buffer, */
5073 NULL /*gst_value_lcopy_buffer */
5076 static GstValueTable gst_value = {
5078 gst_value_compare_buffer,
5079 gst_value_serialize_buffer,
5080 gst_value_deserialize_buffer,
5083 gst_value.type = GST_TYPE_BUFFER;
5084 gst_value_register (&gst_value);
5087 static GstValueTable gst_value = {
5089 gst_value_compare_fraction,
5090 gst_value_serialize_fraction,
5091 gst_value_deserialize_fraction,
5094 gst_value.type = gst_fraction_get_type ();
5095 gst_value_register (&gst_value);
5098 static GstValueTable gst_value = {
5101 gst_value_serialize_caps,
5102 gst_value_deserialize_caps,
5105 gst_value.type = GST_TYPE_CAPS;
5106 gst_value_register (&gst_value);
5109 static GstValueTable gst_value = {
5112 gst_value_serialize_structure,
5113 gst_value_deserialize_structure,
5116 gst_value.type = GST_TYPE_STRUCTURE;
5117 gst_value_register (&gst_value);
5120 static GstValueTable gst_value = {
5122 gst_value_compare_date,
5123 gst_value_serialize_date,
5124 gst_value_deserialize_date,
5127 gst_value.type = G_TYPE_DATE;
5128 gst_value_register (&gst_value);
5131 static GstValueTable gst_value = {
5133 gst_value_compare_date_time,
5134 gst_value_serialize_date_time,
5135 gst_value_deserialize_date_time,
5138 gst_value.type = gst_date_time_get_type ();
5139 gst_value_register (&gst_value);
5143 static GstValueTable gst_value = {
5145 gst_value_compare_bitmask,
5146 gst_value_serialize_bitmask,
5147 gst_value_deserialize_bitmask,
5150 gst_value.type = gst_bitmask_get_type ();
5151 gst_value_register (&gst_value);
5154 REGISTER_SERIALIZATION (G_TYPE_DOUBLE, double);
5155 REGISTER_SERIALIZATION (G_TYPE_FLOAT, float);
5157 REGISTER_SERIALIZATION (G_TYPE_STRING, string);
5158 REGISTER_SERIALIZATION (G_TYPE_BOOLEAN, boolean);
5159 REGISTER_SERIALIZATION (G_TYPE_ENUM, enum);
5161 REGISTER_SERIALIZATION (G_TYPE_FLAGS, flags);
5163 REGISTER_SERIALIZATION (G_TYPE_INT, int);
5165 REGISTER_SERIALIZATION (G_TYPE_INT64, int64);
5166 REGISTER_SERIALIZATION (G_TYPE_LONG, long);
5168 REGISTER_SERIALIZATION (G_TYPE_UINT, uint);
5169 REGISTER_SERIALIZATION (G_TYPE_UINT64, uint64);
5170 REGISTER_SERIALIZATION (G_TYPE_ULONG, ulong);
5172 REGISTER_SERIALIZATION (G_TYPE_UCHAR, uchar);
5174 g_value_register_transform_func (GST_TYPE_INT_RANGE, G_TYPE_STRING,
5175 gst_value_transform_int_range_string);
5176 g_value_register_transform_func (GST_TYPE_INT64_RANGE, G_TYPE_STRING,
5177 gst_value_transform_int64_range_string);
5178 g_value_register_transform_func (GST_TYPE_DOUBLE_RANGE, G_TYPE_STRING,
5179 gst_value_transform_double_range_string);
5180 g_value_register_transform_func (GST_TYPE_FRACTION_RANGE, G_TYPE_STRING,
5181 gst_value_transform_fraction_range_string);
5182 g_value_register_transform_func (GST_TYPE_LIST, G_TYPE_STRING,
5183 gst_value_transform_list_string);
5184 g_value_register_transform_func (GST_TYPE_ARRAY, G_TYPE_STRING,
5185 gst_value_transform_array_string);
5186 g_value_register_transform_func (GST_TYPE_FRACTION, G_TYPE_STRING,
5187 gst_value_transform_fraction_string);
5188 g_value_register_transform_func (G_TYPE_STRING, GST_TYPE_FRACTION,
5189 gst_value_transform_string_fraction);
5190 g_value_register_transform_func (GST_TYPE_FRACTION, G_TYPE_DOUBLE,
5191 gst_value_transform_fraction_double);
5192 g_value_register_transform_func (GST_TYPE_FRACTION, G_TYPE_FLOAT,
5193 gst_value_transform_fraction_float);
5194 g_value_register_transform_func (G_TYPE_DOUBLE, GST_TYPE_FRACTION,
5195 gst_value_transform_double_fraction);
5196 g_value_register_transform_func (G_TYPE_FLOAT, GST_TYPE_FRACTION,
5197 gst_value_transform_float_fraction);
5198 g_value_register_transform_func (G_TYPE_DATE, G_TYPE_STRING,
5199 gst_value_transform_date_string);
5200 g_value_register_transform_func (G_TYPE_STRING, G_TYPE_DATE,
5201 gst_value_transform_string_date);
5202 g_value_register_transform_func (GST_TYPE_OBJECT, G_TYPE_STRING,
5203 gst_value_transform_object_string);
5204 g_value_register_transform_func (GST_TYPE_BITMASK, G_TYPE_UINT64,
5205 gst_value_transform_bitmask_uint64);
5206 g_value_register_transform_func (GST_TYPE_BITMASK, G_TYPE_STRING,
5207 gst_value_transform_bitmask_string);
5208 g_value_register_transform_func (G_TYPE_UINT64, GST_TYPE_BITMASK,
5209 gst_value_transform_uint64_bitmask);
5210 g_value_register_transform_func (G_TYPE_STRING, GST_TYPE_BITMASK,
5211 gst_value_transform_string_bitmask);
5213 gst_value_register_intersect_func (G_TYPE_INT, GST_TYPE_INT_RANGE,
5214 gst_value_intersect_int_int_range);
5215 gst_value_register_intersect_func (GST_TYPE_INT_RANGE, GST_TYPE_INT_RANGE,
5216 gst_value_intersect_int_range_int_range);
5217 gst_value_register_intersect_func (G_TYPE_INT64, GST_TYPE_INT64_RANGE,
5218 gst_value_intersect_int64_int64_range);
5219 gst_value_register_intersect_func (GST_TYPE_INT64_RANGE, GST_TYPE_INT64_RANGE,
5220 gst_value_intersect_int64_range_int64_range);
5221 gst_value_register_intersect_func (G_TYPE_DOUBLE, GST_TYPE_DOUBLE_RANGE,
5222 gst_value_intersect_double_double_range);
5223 gst_value_register_intersect_func (GST_TYPE_DOUBLE_RANGE,
5224 GST_TYPE_DOUBLE_RANGE, gst_value_intersect_double_range_double_range);
5225 gst_value_register_intersect_func (GST_TYPE_ARRAY,
5226 GST_TYPE_ARRAY, gst_value_intersect_array);
5227 gst_value_register_intersect_func (GST_TYPE_FRACTION, GST_TYPE_FRACTION_RANGE,
5228 gst_value_intersect_fraction_fraction_range);
5229 gst_value_register_intersect_func (GST_TYPE_FRACTION_RANGE,
5230 GST_TYPE_FRACTION_RANGE,
5231 gst_value_intersect_fraction_range_fraction_range);
5232 gst_value_register_intersect_func (GST_TYPE_BITMASK,
5233 GST_TYPE_BITMASK, gst_value_intersect_bitmask_bitmask);
5235 gst_value_register_subtract_func (G_TYPE_INT, GST_TYPE_INT_RANGE,
5236 gst_value_subtract_int_int_range);
5237 gst_value_register_subtract_func (GST_TYPE_INT_RANGE, G_TYPE_INT,
5238 gst_value_subtract_int_range_int);
5239 gst_value_register_subtract_func (GST_TYPE_INT_RANGE, GST_TYPE_INT_RANGE,
5240 gst_value_subtract_int_range_int_range);
5241 gst_value_register_subtract_func (G_TYPE_INT64, GST_TYPE_INT64_RANGE,
5242 gst_value_subtract_int64_int64_range);
5243 gst_value_register_subtract_func (GST_TYPE_INT64_RANGE, G_TYPE_INT64,
5244 gst_value_subtract_int64_range_int64);
5245 gst_value_register_subtract_func (GST_TYPE_INT64_RANGE, GST_TYPE_INT64_RANGE,
5246 gst_value_subtract_int64_range_int64_range);
5247 gst_value_register_subtract_func (G_TYPE_DOUBLE, GST_TYPE_DOUBLE_RANGE,
5248 gst_value_subtract_double_double_range);
5249 gst_value_register_subtract_func (GST_TYPE_DOUBLE_RANGE, G_TYPE_DOUBLE,
5250 gst_value_subtract_double_range_double);
5251 gst_value_register_subtract_func (GST_TYPE_DOUBLE_RANGE,
5252 GST_TYPE_DOUBLE_RANGE, gst_value_subtract_double_range_double_range);
5253 gst_value_register_subtract_func (GST_TYPE_FRACTION, GST_TYPE_FRACTION_RANGE,
5254 gst_value_subtract_fraction_fraction_range);
5255 gst_value_register_subtract_func (GST_TYPE_FRACTION_RANGE, GST_TYPE_FRACTION,
5256 gst_value_subtract_fraction_range_fraction);
5257 gst_value_register_subtract_func (GST_TYPE_FRACTION_RANGE,
5258 GST_TYPE_FRACTION_RANGE,
5259 gst_value_subtract_fraction_range_fraction_range);
5260 gst_value_register_subtract_func (GST_TYPE_BITMASK,
5261 GST_TYPE_BITMASK, gst_value_subtract_bitmask_bitmask);
5263 /* see bug #317246, #64994, #65041 */
5265 volatile GType date_type = G_TYPE_DATE;
5267 g_type_name (date_type);
5270 gst_value_register_union_func (G_TYPE_INT, GST_TYPE_INT_RANGE,
5271 gst_value_union_int_int_range);
5272 gst_value_register_union_func (GST_TYPE_INT_RANGE, GST_TYPE_INT_RANGE,
5273 gst_value_union_int_range_int_range);
5274 gst_value_register_union_func (GST_TYPE_BITMASK,
5275 GST_TYPE_BITMASK, gst_value_union_bitmask_bitmask);
5278 /* Implement these if needed */
5279 gst_value_register_union_func (GST_TYPE_FRACTION, GST_TYPE_FRACTION_RANGE,
5280 gst_value_union_fraction_fraction_range);
5281 gst_value_register_union_func (GST_TYPE_FRACTION_RANGE,
5282 GST_TYPE_FRACTION_RANGE, gst_value_union_fraction_range_fraction_range);