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., 51 Franklin St, Fifth Floor,
17 * Boston, MA 02110-1301, 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>
49 * @dest: a #GValue for the result
50 * @value1: a #GValue operand
51 * @value2: a #GValue operand
53 * Used by gst_value_union() to perform unification for a specific #GValue
54 * type. Register a new implementation with gst_value_register_union_func().
56 * Returns: %TRUE if a union was successful
58 typedef gboolean (*GstValueUnionFunc) (GValue * dest,
59 const GValue * value1, const GValue * value2);
61 /* GstValueIntersectFunc:
62 * @dest: (out caller-allocates): a #GValue for the result
63 * @value1: a #GValue operand
64 * @value2: a #GValue operand
66 * Used by gst_value_intersect() to perform intersection for a specific #GValue
67 * type. If the intersection is non-empty, the result is
68 * placed in @dest and TRUE is returned. If the intersection is
69 * empty, @dest is unmodified and FALSE is returned.
70 * Register a new implementation with gst_value_register_intersect_func().
72 * Returns: %TRUE if the values can intersect
74 typedef gboolean (*GstValueIntersectFunc) (GValue * dest,
75 const GValue * value1, const GValue * value2);
77 /* GstValueSubtractFunc:
78 * @dest: (out caller-allocates): a #GValue for the result
79 * @minuend: a #GValue operand
80 * @subtrahend: a #GValue operand
82 * Used by gst_value_subtract() to perform subtraction for a specific #GValue
83 * type. Register a new implementation with gst_value_register_subtract_func().
85 * Returns: %TRUE if the subtraction is not empty
87 typedef gboolean (*GstValueSubtractFunc) (GValue * dest,
88 const GValue * minuend, const GValue * subtrahend);
90 static void gst_value_register_union_func (GType type1,
91 GType type2, GstValueUnionFunc func);
92 static void gst_value_register_intersect_func (GType type1,
93 GType type2, GstValueIntersectFunc func);
94 static void gst_value_register_subtract_func (GType minuend_type,
95 GType subtrahend_type, GstValueSubtractFunc func);
97 typedef struct _GstValueUnionInfo GstValueUnionInfo;
98 struct _GstValueUnionInfo
102 GstValueUnionFunc func;
105 typedef struct _GstValueIntersectInfo GstValueIntersectInfo;
106 struct _GstValueIntersectInfo
110 GstValueIntersectFunc func;
113 typedef struct _GstValueSubtractInfo GstValueSubtractInfo;
114 struct _GstValueSubtractInfo
118 GstValueSubtractFunc func;
121 #define FUNDAMENTAL_TYPE_ID_MAX \
122 (G_TYPE_FUNDAMENTAL_MAX >> G_TYPE_FUNDAMENTAL_SHIFT)
123 #define FUNDAMENTAL_TYPE_ID(type) \
124 ((type) >> G_TYPE_FUNDAMENTAL_SHIFT)
126 #define VALUE_LIST_SIZE(v) (((GArray *) (v)->data[0].v_pointer)->len)
127 #define VALUE_LIST_GET_VALUE(v, index) ((const GValue *) &g_array_index ((GArray *) (v)->data[0].v_pointer, GValue, (index)))
129 static GArray *gst_value_table;
130 static GHashTable *gst_value_hash;
131 static GstValueTable *gst_value_tables_fundamental[FUNDAMENTAL_TYPE_ID_MAX + 1];
132 static GArray *gst_value_union_funcs;
133 static GArray *gst_value_intersect_funcs;
134 static GArray *gst_value_subtract_funcs;
136 /* Forward declarations */
137 static gchar *gst_value_serialize_fraction (const GValue * value);
139 static GstValueCompareFunc gst_value_get_compare_func (const GValue * value1);
140 static gint gst_value_compare_with_func (const GValue * value1,
141 const GValue * value2, GstValueCompareFunc compare);
143 static gchar *gst_string_wrap (const gchar * s);
144 static gchar *gst_string_take_and_wrap (gchar * s);
145 static gchar *gst_string_unwrap (const gchar * s);
147 static void gst_value_move (GValue * dest, GValue * src);
148 static void _gst_value_list_append_and_take_value (GValue * value,
149 GValue * append_value);
150 static void _gst_value_array_append_and_take_value (GValue * value,
151 GValue * append_value);
153 static inline GstValueTable *
154 gst_value_hash_lookup_type (GType type)
156 if (G_LIKELY (G_TYPE_IS_FUNDAMENTAL (type)))
157 return gst_value_tables_fundamental[FUNDAMENTAL_TYPE_ID (type)];
159 return g_hash_table_lookup (gst_value_hash, (gpointer) type);
163 gst_value_hash_add_type (GType type, const GstValueTable * table)
165 if (G_TYPE_IS_FUNDAMENTAL (type))
166 gst_value_tables_fundamental[FUNDAMENTAL_TYPE_ID (type)] = (gpointer) table;
168 g_hash_table_insert (gst_value_hash, (gpointer) type, (gpointer) table);
175 /* two helper functions to serialize/stringify any type of list
176 * regular lists are done with { }, arrays with < >
179 gst_value_serialize_any_list (const GValue * value, const gchar * begin,
183 GArray *array = value->data[0].v_pointer;
187 guint alen = array->len;
189 /* estimate minimum string length to minimise re-allocs in GString */
190 s = g_string_sized_new (2 + (6 * alen) + 2);
191 g_string_append (s, begin);
192 for (i = 0; i < alen; i++) {
193 v = &g_array_index (array, GValue, i);
194 s_val = gst_value_serialize (v);
196 g_string_append (s, s_val);
199 g_string_append_len (s, ", ", 2);
202 GST_WARNING ("Could not serialize list/array value of type '%s'",
203 G_VALUE_TYPE_NAME (v));
206 g_string_append (s, end);
207 return g_string_free (s, FALSE);
211 gst_value_transform_any_list_string (const GValue * src_value,
212 GValue * dest_value, const gchar * begin, const gchar * end)
221 array = src_value->data[0].v_pointer;
224 /* estimate minimum string length to minimise re-allocs in GString */
225 s = g_string_sized_new (2 + (10 * alen) + 2);
226 g_string_append (s, begin);
227 for (i = 0; i < alen; i++) {
228 list_value = &g_array_index (array, GValue, i);
231 g_string_append_len (s, ", ", 2);
233 list_s = g_strdup_value_contents (list_value);
234 g_string_append (s, list_s);
237 g_string_append (s, end);
239 dest_value->data[0].v_pointer = g_string_free (s, FALSE);
243 * helper function to see if a type is fixed. Is used internally here and
244 * there. Do not export, since it doesn't work for types where the content
245 * decides the fixedness (e.g. GST_TYPE_ARRAY).
248 gst_type_is_fixed (GType type)
250 /* the basic int, string, double types */
251 if (type <= G_TYPE_MAKE_FUNDAMENTAL (G_TYPE_RESERVED_GLIB_LAST)) {
254 /* our fundamental types that are certainly not fixed */
255 if (type == GST_TYPE_INT_RANGE || type == GST_TYPE_DOUBLE_RANGE ||
256 type == GST_TYPE_INT64_RANGE ||
257 type == GST_TYPE_LIST || type == GST_TYPE_FRACTION_RANGE) {
260 /* other (boxed) types that are fixed */
261 if (type == GST_TYPE_BUFFER) {
265 if (G_TYPE_IS_FUNDAMENTAL (type) || G_TYPE_FUNDAMENTAL (type) <=
266 G_TYPE_MAKE_FUNDAMENTAL (G_TYPE_RESERVED_GLIB_LAST)) {
273 /* GValue functions usable for both regular lists and arrays */
275 gst_value_init_list_or_array (GValue * value)
277 value->data[0].v_pointer = g_array_new (FALSE, TRUE, sizeof (GValue));
281 copy_garray_of_gstvalue (const GArray * src)
287 dest = g_array_sized_new (FALSE, TRUE, sizeof (GValue), len);
288 g_array_set_size (dest, len);
289 for (i = 0; i < len; i++) {
290 gst_value_init_and_copy (&g_array_index (dest, GValue, i),
291 &g_array_index (src, GValue, i));
298 gst_value_copy_list_or_array (const GValue * src_value, GValue * dest_value)
300 dest_value->data[0].v_pointer =
301 copy_garray_of_gstvalue ((GArray *) src_value->data[0].v_pointer);
305 gst_value_free_list_or_array (GValue * value)
308 GArray *src = (GArray *) value->data[0].v_pointer;
311 if ((value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS) == 0) {
312 for (i = 0; i < len; i++) {
313 g_value_unset (&g_array_index (src, GValue, i));
315 g_array_free (src, TRUE);
320 gst_value_list_or_array_peek_pointer (const GValue * value)
322 return value->data[0].v_pointer;
326 gst_value_collect_list_or_array (GValue * value, guint n_collect_values,
327 GTypeCValue * collect_values, guint collect_flags)
329 if (collect_flags & G_VALUE_NOCOPY_CONTENTS) {
330 value->data[0].v_pointer = collect_values[0].v_pointer;
331 value->data[1].v_uint = G_VALUE_NOCOPY_CONTENTS;
333 value->data[0].v_pointer =
334 copy_garray_of_gstvalue ((GArray *) collect_values[0].v_pointer);
340 gst_value_lcopy_list_or_array (const GValue * value, guint n_collect_values,
341 GTypeCValue * collect_values, guint collect_flags)
343 GArray **dest = collect_values[0].v_pointer;
346 return g_strdup_printf ("value location for `%s' passed as NULL",
347 G_VALUE_TYPE_NAME (value));
348 if (!value->data[0].v_pointer)
349 return g_strdup_printf ("invalid value given for `%s'",
350 G_VALUE_TYPE_NAME (value));
351 if (collect_flags & G_VALUE_NOCOPY_CONTENTS) {
352 *dest = (GArray *) value->data[0].v_pointer;
354 *dest = copy_garray_of_gstvalue ((GArray *) value->data[0].v_pointer);
360 gst_value_list_or_array_get_basic_type (const GValue * value, GType * type)
362 if (G_UNLIKELY (value == NULL))
365 if (GST_VALUE_HOLDS_LIST (value)) {
366 if (VALUE_LIST_SIZE (value) == 0)
368 return gst_value_list_or_array_get_basic_type (VALUE_LIST_GET_VALUE (value,
371 if (GST_VALUE_HOLDS_ARRAY (value)) {
372 const GArray *array = (const GArray *) value->data[0].v_pointer;
375 return gst_value_list_or_array_get_basic_type (&g_array_index (array,
379 *type = G_VALUE_TYPE (value);
384 #define IS_RANGE_COMPAT(type1,type2,t1,t2) \
385 (((t1) == (type1) && (t2) == (type2)) || ((t2) == (type1) && (t1) == (type2)))
388 gst_value_list_or_array_are_compatible (const GValue * value1,
389 const GValue * value2)
391 GType basic_type1, basic_type2;
393 /* empty or same type is OK */
394 if (!gst_value_list_or_array_get_basic_type (value1, &basic_type1) ||
395 !gst_value_list_or_array_get_basic_type (value2, &basic_type2) ||
396 basic_type1 == basic_type2)
399 /* ranges are distinct types for each bound type... */
400 if (IS_RANGE_COMPAT (G_TYPE_INT, GST_TYPE_INT_RANGE, basic_type1,
403 if (IS_RANGE_COMPAT (G_TYPE_INT64, GST_TYPE_INT64_RANGE, basic_type1,
406 if (IS_RANGE_COMPAT (G_TYPE_DOUBLE, GST_TYPE_DOUBLE_RANGE, basic_type1,
409 if (IS_RANGE_COMPAT (GST_TYPE_FRACTION, GST_TYPE_FRACTION_RANGE, basic_type1,
417 _gst_value_list_append_and_take_value (GValue * value, GValue * append_value)
419 g_array_append_vals ((GArray *) value->data[0].v_pointer, append_value, 1);
420 memset (append_value, 0, sizeof (GValue));
424 * gst_value_list_append_and_take_value:
425 * @value: a #GValue of type #GST_TYPE_LIST
426 * @append_value: (transfer full): the value to append
428 * Appends @append_value to the GstValueList in @value.
433 gst_value_list_append_and_take_value (GValue * value, GValue * append_value)
435 g_return_if_fail (GST_VALUE_HOLDS_LIST (value));
436 g_return_if_fail (G_IS_VALUE (append_value));
437 g_return_if_fail (gst_value_list_or_array_are_compatible (value,
440 _gst_value_list_append_and_take_value (value, append_value);
444 * gst_value_list_append_value:
445 * @value: a #GValue of type #GST_TYPE_LIST
446 * @append_value: (transfer none): the value to append
448 * Appends @append_value to the GstValueList in @value.
451 gst_value_list_append_value (GValue * value, const GValue * append_value)
455 g_return_if_fail (GST_VALUE_HOLDS_LIST (value));
456 g_return_if_fail (G_IS_VALUE (append_value));
457 g_return_if_fail (gst_value_list_or_array_are_compatible (value,
460 gst_value_init_and_copy (&val, append_value);
461 g_array_append_vals ((GArray *) value->data[0].v_pointer, &val, 1);
465 * gst_value_list_prepend_value:
466 * @value: a #GValue of type #GST_TYPE_LIST
467 * @prepend_value: the value to prepend
469 * Prepends @prepend_value to the GstValueList in @value.
472 gst_value_list_prepend_value (GValue * value, const GValue * prepend_value)
476 g_return_if_fail (GST_VALUE_HOLDS_LIST (value));
477 g_return_if_fail (G_IS_VALUE (prepend_value));
478 g_return_if_fail (gst_value_list_or_array_are_compatible (value,
481 gst_value_init_and_copy (&val, prepend_value);
482 g_array_prepend_vals ((GArray *) value->data[0].v_pointer, &val, 1);
486 * gst_value_list_concat:
487 * @dest: (out caller-allocates): an uninitialized #GValue to take the result
491 * Concatenates copies of @value1 and @value2 into a list. Values that are not
492 * of type #GST_TYPE_LIST are treated as if they were lists of length 1.
493 * @dest will be initialized to the type #GST_TYPE_LIST.
496 gst_value_list_concat (GValue * dest, const GValue * value1,
497 const GValue * value2)
499 guint i, value1_length, value2_length;
502 g_return_if_fail (dest != NULL);
503 g_return_if_fail (G_VALUE_TYPE (dest) == 0);
504 g_return_if_fail (G_IS_VALUE (value1));
505 g_return_if_fail (G_IS_VALUE (value2));
506 g_return_if_fail (gst_value_list_or_array_are_compatible (value1, value2));
509 (GST_VALUE_HOLDS_LIST (value1) ? VALUE_LIST_SIZE (value1) : 1);
511 (GST_VALUE_HOLDS_LIST (value2) ? VALUE_LIST_SIZE (value2) : 1);
512 g_value_init (dest, GST_TYPE_LIST);
513 array = (GArray *) dest->data[0].v_pointer;
514 g_array_set_size (array, value1_length + value2_length);
516 if (GST_VALUE_HOLDS_LIST (value1)) {
517 for (i = 0; i < value1_length; i++) {
518 gst_value_init_and_copy (&g_array_index (array, GValue, i),
519 VALUE_LIST_GET_VALUE (value1, i));
522 gst_value_init_and_copy (&g_array_index (array, GValue, 0), value1);
525 if (GST_VALUE_HOLDS_LIST (value2)) {
526 for (i = 0; i < value2_length; i++) {
527 gst_value_init_and_copy (&g_array_index (array, GValue,
528 i + value1_length), VALUE_LIST_GET_VALUE (value2, i));
531 gst_value_init_and_copy (&g_array_index (array, GValue, value1_length),
537 * gst_value_list_merge:
538 * @dest: (out caller-allocates): an uninitialized #GValue to take the result
542 * Merges copies of @value1 and @value2. Values that are not
543 * of type #GST_TYPE_LIST are treated as if they were lists of length 1.
545 * The result will be put into @dest and will either be a list that will not
546 * contain any duplicates, or a non-list type (if @value1 and @value2
550 gst_value_list_merge (GValue * dest, const GValue * value1,
551 const GValue * value2)
553 guint i, j, k, value1_length, value2_length, skipped;
558 g_return_if_fail (dest != NULL);
559 g_return_if_fail (G_VALUE_TYPE (dest) == 0);
560 g_return_if_fail (G_IS_VALUE (value1));
561 g_return_if_fail (G_IS_VALUE (value2));
562 g_return_if_fail (gst_value_list_or_array_are_compatible (value1, value2));
565 (GST_VALUE_HOLDS_LIST (value1) ? VALUE_LIST_SIZE (value1) : 1);
567 (GST_VALUE_HOLDS_LIST (value2) ? VALUE_LIST_SIZE (value2) : 1);
568 g_value_init (dest, GST_TYPE_LIST);
569 array = (GArray *) dest->data[0].v_pointer;
570 g_array_set_size (array, value1_length + value2_length);
572 if (GST_VALUE_HOLDS_LIST (value1)) {
573 for (i = 0; i < value1_length; i++) {
574 gst_value_init_and_copy (&g_array_index (array, GValue, i),
575 VALUE_LIST_GET_VALUE (value1, i));
578 gst_value_init_and_copy (&g_array_index (array, GValue, 0), value1);
583 if (GST_VALUE_HOLDS_LIST (value2)) {
584 for (i = 0; i < value2_length; i++) {
586 src = VALUE_LIST_GET_VALUE (value2, i);
587 for (k = 0; k < value1_length; k++) {
588 if (gst_value_compare (&g_array_index (array, GValue, k),
589 src) == GST_VALUE_EQUAL) {
596 gst_value_init_and_copy (&g_array_index (array, GValue, j), src);
602 for (k = 0; k < value1_length; k++) {
603 if (gst_value_compare (&g_array_index (array, GValue, k),
604 value2) == GST_VALUE_EQUAL) {
611 gst_value_init_and_copy (&g_array_index (array, GValue, j), value2);
615 guint new_size = value1_length + (value2_length - skipped);
619 g_array_set_size (array, new_size);
623 /* size is 1, take single value in list and make it new dest */
624 single_dest = g_array_index (array, GValue, 0);
626 /* clean up old value allocations: must set array size to 0, because
627 * allocated values are not inited meaning g_value_unset() will not
629 g_array_set_size (array, 0);
630 g_value_unset (dest);
632 /* the single value is our new result */
639 * gst_value_list_get_size:
640 * @value: a #GValue of type #GST_TYPE_LIST
642 * Gets the number of values contained in @value.
644 * Returns: the number of values
647 gst_value_list_get_size (const GValue * value)
649 g_return_val_if_fail (GST_VALUE_HOLDS_LIST (value), 0);
651 return ((GArray *) value->data[0].v_pointer)->len;
655 * gst_value_list_get_value:
656 * @value: a #GValue of type #GST_TYPE_LIST
657 * @index: index of value to get from the list
659 * Gets the value that is a member of the list contained in @value and
660 * has the index @index.
662 * Returns: (transfer none): the value at the given index
665 gst_value_list_get_value (const GValue * value, guint index)
667 g_return_val_if_fail (GST_VALUE_HOLDS_LIST (value), NULL);
668 g_return_val_if_fail (index < VALUE_LIST_SIZE (value), NULL);
670 return (const GValue *) &g_array_index ((GArray *) value->data[0].v_pointer,
675 * gst_value_array_append_value:
676 * @value: a #GValue of type #GST_TYPE_ARRAY
677 * @append_value: the value to append
679 * Appends @append_value to the GstValueArray in @value.
682 gst_value_array_append_value (GValue * value, const GValue * append_value)
686 g_return_if_fail (GST_VALUE_HOLDS_ARRAY (value));
687 g_return_if_fail (G_IS_VALUE (append_value));
688 g_return_if_fail (gst_value_list_or_array_are_compatible (value,
691 gst_value_init_and_copy (&val, append_value);
692 g_array_append_vals ((GArray *) value->data[0].v_pointer, &val, 1);
696 _gst_value_array_append_and_take_value (GValue * value, GValue * append_value)
698 g_array_append_vals ((GArray *) value->data[0].v_pointer, append_value, 1);
699 memset (append_value, 0, sizeof (GValue));
703 * gst_value_array_append_and_take_value:
704 * @value: a #GValue of type #GST_TYPE_ARRAY
705 * @append_value: (transfer full): the value to append
707 * Appends @append_value to the GstValueArray in @value.
712 gst_value_array_append_and_take_value (GValue * value, GValue * append_value)
714 g_return_if_fail (GST_VALUE_HOLDS_ARRAY (value));
715 g_return_if_fail (G_IS_VALUE (append_value));
716 g_return_if_fail (gst_value_list_or_array_are_compatible (value,
719 _gst_value_array_append_and_take_value (value, append_value);
723 * gst_value_array_prepend_value:
724 * @value: a #GValue of type #GST_TYPE_ARRAY
725 * @prepend_value: the value to prepend
727 * Prepends @prepend_value to the GstValueArray in @value.
730 gst_value_array_prepend_value (GValue * value, const GValue * prepend_value)
734 g_return_if_fail (GST_VALUE_HOLDS_ARRAY (value));
735 g_return_if_fail (G_IS_VALUE (prepend_value));
736 g_return_if_fail (gst_value_list_or_array_are_compatible (value,
739 gst_value_init_and_copy (&val, prepend_value);
740 g_array_prepend_vals ((GArray *) value->data[0].v_pointer, &val, 1);
744 * gst_value_array_get_size:
745 * @value: a #GValue of type #GST_TYPE_ARRAY
747 * Gets the number of values contained in @value.
749 * Returns: the number of values
752 gst_value_array_get_size (const GValue * value)
754 g_return_val_if_fail (GST_VALUE_HOLDS_ARRAY (value), 0);
756 return ((GArray *) value->data[0].v_pointer)->len;
760 * gst_value_array_get_value:
761 * @value: a #GValue of type #GST_TYPE_ARRAY
762 * @index: index of value to get from the array
764 * Gets the value that is a member of the array contained in @value and
765 * has the index @index.
767 * Returns: (transfer none): the value at the given index
770 gst_value_array_get_value (const GValue * value, guint index)
772 g_return_val_if_fail (GST_VALUE_HOLDS_ARRAY (value), NULL);
773 g_return_val_if_fail (index < gst_value_array_get_size (value), NULL);
775 return (const GValue *) &g_array_index ((GArray *) value->data[0].v_pointer,
780 gst_value_transform_list_string (const GValue * src_value, GValue * dest_value)
782 gst_value_transform_any_list_string (src_value, dest_value, "{ ", " }");
786 gst_value_transform_array_string (const GValue * src_value, GValue * dest_value)
788 gst_value_transform_any_list_string (src_value, dest_value, "< ", " >");
791 /* Do an unordered compare of the contents of a list */
793 gst_value_compare_list (const GValue * value1, const GValue * value2)
796 GArray *array1 = value1->data[0].v_pointer;
797 GArray *array2 = value2->data[0].v_pointer;
802 GstValueCompareFunc compare;
804 /* get length and do initial length check. */
806 if (len != array2->len)
807 return GST_VALUE_UNORDERED;
809 /* place to mark removed value indices of array2 */
810 removed = g_newa (guint8, len);
811 memset (removed, 0, len);
814 /* loop over array1, all items should be in array2. When we find an
815 * item in array2, remove it from array2 by marking it as removed */
816 for (i = 0; i < len; i++) {
817 v1 = &g_array_index (array1, GValue, i);
818 if ((compare = gst_value_get_compare_func (v1))) {
819 for (j = 0; j < len; j++) {
820 /* item is removed, we can skip it */
823 v2 = &g_array_index (array2, GValue, j);
824 if (gst_value_compare_with_func (v1, v2, compare) == GST_VALUE_EQUAL) {
825 /* mark item as removed now that we found it in array2 and
826 * decrement the number of remaining items in array2. */
832 /* item in array1 and not in array2, UNORDERED */
834 return GST_VALUE_UNORDERED;
836 return GST_VALUE_UNORDERED;
838 /* if not all items were removed, array2 contained something not in array1 */
840 return GST_VALUE_UNORDERED;
842 /* arrays are equal */
843 return GST_VALUE_EQUAL;
846 /* Perform an ordered comparison of the contents of an array */
848 gst_value_compare_array (const GValue * value1, const GValue * value2)
851 GArray *array1 = value1->data[0].v_pointer;
852 GArray *array2 = value2->data[0].v_pointer;
853 guint len = array1->len;
857 if (len != array2->len)
858 return GST_VALUE_UNORDERED;
860 for (i = 0; i < len; i++) {
861 v1 = &g_array_index (array1, GValue, i);
862 v2 = &g_array_index (array2, GValue, i);
863 if (gst_value_compare (v1, v2) != GST_VALUE_EQUAL)
864 return GST_VALUE_UNORDERED;
867 return GST_VALUE_EQUAL;
871 gst_value_serialize_list (const GValue * value)
873 return gst_value_serialize_any_list (value, "{ ", " }");
877 gst_value_deserialize_list (GValue * dest, const gchar * s)
879 g_warning ("gst_value_deserialize_list: unimplemented");
884 gst_value_serialize_array (const GValue * value)
886 return gst_value_serialize_any_list (value, "< ", " >");
890 gst_value_deserialize_array (GValue * dest, const gchar * s)
892 g_warning ("gst_value_deserialize_array: unimplemented");
899 * Values in the range are defined as any value greater or equal
900 * to min*step, AND lesser or equal to max*step.
901 * For step == 1, this falls back to the traditional range semantics.
904 #define INT_RANGE_MIN(v) (((gint *)((v)->data[0].v_pointer))[0])
905 #define INT_RANGE_MAX(v) (((gint *)((v)->data[0].v_pointer))[1])
906 #define INT_RANGE_STEP(v) (((gint *)((v)->data[0].v_pointer))[2])
909 gst_value_init_int_range (GValue * value)
911 gint *vals = g_slice_alloc0 (3 * sizeof (gint));
912 value->data[0].v_pointer = vals;
913 INT_RANGE_MIN (value) = 0;
914 INT_RANGE_MAX (value) = 0;
915 INT_RANGE_STEP (value) = 1;
919 gst_value_free_int_range (GValue * value)
921 g_return_if_fail (GST_VALUE_HOLDS_INT_RANGE (value));
922 g_slice_free1 (3 * sizeof (gint), value->data[0].v_pointer);
923 value->data[0].v_pointer = NULL;
927 gst_value_copy_int_range (const GValue * src_value, GValue * dest_value)
929 gint *vals = (gint *) dest_value->data[0].v_pointer;
930 gint *src_vals = (gint *) src_value->data[0].v_pointer;
933 gst_value_init_int_range (dest_value);
935 if (src_vals != NULL) {
936 INT_RANGE_MIN (dest_value) = INT_RANGE_MIN (src_value);
937 INT_RANGE_MAX (dest_value) = INT_RANGE_MAX (src_value);
938 INT_RANGE_STEP (dest_value) = INT_RANGE_STEP (src_value);
943 gst_value_collect_int_range (GValue * value, guint n_collect_values,
944 GTypeCValue * collect_values, guint collect_flags)
946 gint *vals = value->data[0].v_pointer;
948 if (n_collect_values != 2)
949 return g_strdup_printf ("not enough value locations for `%s' passed",
950 G_VALUE_TYPE_NAME (value));
951 if (collect_values[0].v_int >= collect_values[1].v_int)
952 return g_strdup_printf ("range start is not smaller than end for `%s'",
953 G_VALUE_TYPE_NAME (value));
956 gst_value_init_int_range (value);
959 gst_value_set_int_range_step (value, collect_values[0].v_int,
960 collect_values[1].v_int, 1);
966 gst_value_lcopy_int_range (const GValue * value, guint n_collect_values,
967 GTypeCValue * collect_values, guint collect_flags)
969 guint32 *int_range_start = collect_values[0].v_pointer;
970 guint32 *int_range_end = collect_values[1].v_pointer;
971 guint32 *int_range_step = collect_values[2].v_pointer;
972 gint *vals = (gint *) value->data[0].v_pointer;
974 if (!int_range_start)
975 return g_strdup_printf ("start value location for `%s' passed as NULL",
976 G_VALUE_TYPE_NAME (value));
978 return g_strdup_printf ("end value location for `%s' passed as NULL",
979 G_VALUE_TYPE_NAME (value));
981 return g_strdup_printf ("step value location for `%s' passed as NULL",
982 G_VALUE_TYPE_NAME (value));
984 if (G_UNLIKELY (vals == NULL)) {
985 return g_strdup_printf ("Uninitialised `%s' passed",
986 G_VALUE_TYPE_NAME (value));
989 *int_range_start = INT_RANGE_MIN (value);
990 *int_range_end = INT_RANGE_MAX (value);
991 *int_range_step = INT_RANGE_STEP (value);
997 * gst_value_set_int_range_step:
998 * @value: a GValue initialized to GST_TYPE_INT_RANGE
999 * @start: the start of the range
1000 * @end: the end of the range
1001 * @step: the step of the range
1003 * Sets @value to the range specified by @start, @end and @step.
1006 gst_value_set_int_range_step (GValue * value, gint start, gint end, gint step)
1008 g_return_if_fail (GST_VALUE_HOLDS_INT_RANGE (value));
1009 g_return_if_fail (start < end);
1010 g_return_if_fail (step > 0);
1011 g_return_if_fail (start % step == 0);
1012 g_return_if_fail (end % step == 0);
1014 INT_RANGE_MIN (value) = start / step;
1015 INT_RANGE_MAX (value) = end / step;
1016 INT_RANGE_STEP (value) = step;
1020 * gst_value_set_int_range:
1021 * @value: a GValue initialized to GST_TYPE_INT_RANGE
1022 * @start: the start of the range
1023 * @end: the end of the range
1025 * Sets @value to the range specified by @start and @end.
1028 gst_value_set_int_range (GValue * value, gint start, gint end)
1030 gst_value_set_int_range_step (value, start, end, 1);
1034 * gst_value_get_int_range_min:
1035 * @value: a GValue initialized to GST_TYPE_INT_RANGE
1037 * Gets the minimum of the range specified by @value.
1039 * Returns: the minimum of the range
1042 gst_value_get_int_range_min (const GValue * value)
1044 g_return_val_if_fail (GST_VALUE_HOLDS_INT_RANGE (value), 0);
1046 return INT_RANGE_MIN (value) * INT_RANGE_STEP (value);
1050 * gst_value_get_int_range_max:
1051 * @value: a GValue initialized to GST_TYPE_INT_RANGE
1053 * Gets the maximum of the range specified by @value.
1055 * Returns: the maxumum of the range
1058 gst_value_get_int_range_max (const GValue * value)
1060 g_return_val_if_fail (GST_VALUE_HOLDS_INT_RANGE (value), 0);
1062 return INT_RANGE_MAX (value) * INT_RANGE_STEP (value);
1066 * gst_value_get_int_range_step:
1067 * @value: a GValue initialized to GST_TYPE_INT_RANGE
1069 * Gets the step of the range specified by @value.
1071 * Returns: the step of the range
1074 gst_value_get_int_range_step (const GValue * value)
1076 g_return_val_if_fail (GST_VALUE_HOLDS_INT_RANGE (value), 0);
1078 return INT_RANGE_STEP (value);
1082 gst_value_transform_int_range_string (const GValue * src_value,
1083 GValue * dest_value)
1085 if (INT_RANGE_STEP (src_value) == 1)
1086 dest_value->data[0].v_pointer = g_strdup_printf ("[%d,%d]",
1087 INT_RANGE_MIN (src_value), INT_RANGE_MAX (src_value));
1089 dest_value->data[0].v_pointer = g_strdup_printf ("[%d,%d,%d]",
1090 INT_RANGE_MIN (src_value) * INT_RANGE_STEP (src_value),
1091 INT_RANGE_MAX (src_value) * INT_RANGE_STEP (src_value),
1092 INT_RANGE_STEP (src_value));
1096 gst_value_compare_int_range (const GValue * value1, const GValue * value2)
1098 /* calculate the number of values in each range */
1099 gint n1 = INT_RANGE_MAX (value1) - INT_RANGE_MIN (value1) + 1;
1100 gint n2 = INT_RANGE_MAX (value2) - INT_RANGE_MIN (value2) + 1;
1102 /* they must be equal */
1104 return GST_VALUE_UNORDERED;
1106 /* if empty, equal */
1108 return GST_VALUE_EQUAL;
1110 /* if more than one value, then it is only equal if the step is equal
1111 and bounds lie on the same value */
1113 if (INT_RANGE_STEP (value1) == INT_RANGE_STEP (value2) &&
1114 INT_RANGE_STEP (value1) == INT_RANGE_STEP (value2) &&
1115 INT_RANGE_STEP (value1) == INT_RANGE_STEP (value2)) {
1116 return GST_VALUE_EQUAL;
1118 return GST_VALUE_UNORDERED;
1120 /* if just one, only if the value is equal */
1121 if (INT_RANGE_MIN (value1) == INT_RANGE_MIN (value2))
1122 return GST_VALUE_EQUAL;
1123 return GST_VALUE_UNORDERED;
1128 gst_value_serialize_int_range (const GValue * value)
1130 if (INT_RANGE_STEP (value) == 1)
1131 return g_strdup_printf ("[ %d, %d ]", INT_RANGE_MIN (value),
1132 INT_RANGE_MAX (value));
1134 return g_strdup_printf ("[ %d, %d, %d ]",
1135 INT_RANGE_MIN (value) * INT_RANGE_STEP (value),
1136 INT_RANGE_MAX (value) * INT_RANGE_STEP (value), INT_RANGE_STEP (value));
1140 gst_value_deserialize_int_range (GValue * dest, const gchar * s)
1142 g_warning ("unimplemented");
1149 * Values in the range are defined as any value greater or equal
1150 * to min*step, AND lesser or equal to max*step.
1151 * For step == 1, this falls back to the traditional range semantics.
1154 #define INT64_RANGE_MIN(v) (((gint64 *)((v)->data[0].v_pointer))[0])
1155 #define INT64_RANGE_MAX(v) (((gint64 *)((v)->data[0].v_pointer))[1])
1156 #define INT64_RANGE_STEP(v) (((gint64 *)((v)->data[0].v_pointer))[2])
1159 gst_value_init_int64_range (GValue * value)
1161 gint64 *vals = g_slice_alloc0 (3 * sizeof (gint64));
1162 value->data[0].v_pointer = vals;
1163 INT64_RANGE_MIN (value) = 0;
1164 INT64_RANGE_MAX (value) = 0;
1165 INT64_RANGE_STEP (value) = 1;
1169 gst_value_free_int64_range (GValue * value)
1171 g_return_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value));
1172 g_slice_free1 (3 * sizeof (gint64), value->data[0].v_pointer);
1173 value->data[0].v_pointer = NULL;
1177 gst_value_copy_int64_range (const GValue * src_value, GValue * dest_value)
1179 gint64 *vals = (gint64 *) dest_value->data[0].v_pointer;
1180 gint64 *src_vals = (gint64 *) src_value->data[0].v_pointer;
1183 gst_value_init_int64_range (dest_value);
1186 if (src_vals != NULL) {
1187 INT64_RANGE_MIN (dest_value) = INT64_RANGE_MIN (src_value);
1188 INT64_RANGE_MAX (dest_value) = INT64_RANGE_MAX (src_value);
1189 INT64_RANGE_STEP (dest_value) = INT64_RANGE_STEP (src_value);
1194 gst_value_collect_int64_range (GValue * value, guint n_collect_values,
1195 GTypeCValue * collect_values, guint collect_flags)
1197 gint64 *vals = value->data[0].v_pointer;
1199 if (n_collect_values != 2)
1200 return g_strdup_printf ("not enough value locations for `%s' passed",
1201 G_VALUE_TYPE_NAME (value));
1202 if (collect_values[0].v_int64 >= collect_values[1].v_int64)
1203 return g_strdup_printf ("range start is not smaller than end for `%s'",
1204 G_VALUE_TYPE_NAME (value));
1207 gst_value_init_int64_range (value);
1210 gst_value_set_int64_range_step (value, collect_values[0].v_int64,
1211 collect_values[1].v_int64, 1);
1217 gst_value_lcopy_int64_range (const GValue * value, guint n_collect_values,
1218 GTypeCValue * collect_values, guint collect_flags)
1220 guint64 *int_range_start = collect_values[0].v_pointer;
1221 guint64 *int_range_end = collect_values[1].v_pointer;
1222 guint64 *int_range_step = collect_values[2].v_pointer;
1223 gint64 *vals = (gint64 *) value->data[0].v_pointer;
1225 if (!int_range_start)
1226 return g_strdup_printf ("start value location for `%s' passed as NULL",
1227 G_VALUE_TYPE_NAME (value));
1229 return g_strdup_printf ("end value location for `%s' passed as NULL",
1230 G_VALUE_TYPE_NAME (value));
1231 if (!int_range_step)
1232 return g_strdup_printf ("step value location for `%s' passed as NULL",
1233 G_VALUE_TYPE_NAME (value));
1235 if (G_UNLIKELY (vals == NULL)) {
1236 return g_strdup_printf ("Uninitialised `%s' passed",
1237 G_VALUE_TYPE_NAME (value));
1240 *int_range_start = INT64_RANGE_MIN (value);
1241 *int_range_end = INT64_RANGE_MAX (value);
1242 *int_range_step = INT64_RANGE_STEP (value);
1248 * gst_value_set_int64_range_step:
1249 * @value: a GValue initialized to GST_TYPE_INT64_RANGE
1250 * @start: the start of the range
1251 * @end: the end of the range
1252 * @step: the step of the range
1254 * Sets @value to the range specified by @start, @end and @step.
1257 gst_value_set_int64_range_step (GValue * value, gint64 start, gint64 end,
1260 g_return_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value));
1261 g_return_if_fail (start < end);
1262 g_return_if_fail (step > 0);
1263 g_return_if_fail (start % step == 0);
1264 g_return_if_fail (end % step == 0);
1266 INT64_RANGE_MIN (value) = start / step;
1267 INT64_RANGE_MAX (value) = end / step;
1268 INT64_RANGE_STEP (value) = step;
1272 * gst_value_set_int64_range:
1273 * @value: a GValue initialized to GST_TYPE_INT64_RANGE
1274 * @start: the start of the range
1275 * @end: the end of the range
1277 * Sets @value to the range specified by @start and @end.
1280 gst_value_set_int64_range (GValue * value, gint64 start, gint64 end)
1282 gst_value_set_int64_range_step (value, start, end, 1);
1286 * gst_value_get_int64_range_min:
1287 * @value: a GValue initialized to GST_TYPE_INT64_RANGE
1289 * Gets the minimum of the range specified by @value.
1291 * Returns: the minimum of the range
1294 gst_value_get_int64_range_min (const GValue * value)
1296 g_return_val_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value), 0);
1298 return INT64_RANGE_MIN (value) * INT64_RANGE_STEP (value);
1302 * gst_value_get_int64_range_max:
1303 * @value: a GValue initialized to GST_TYPE_INT64_RANGE
1305 * Gets the maximum of the range specified by @value.
1307 * Returns: the maxumum of the range
1310 gst_value_get_int64_range_max (const GValue * value)
1312 g_return_val_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value), 0);
1314 return INT64_RANGE_MAX (value) * INT64_RANGE_STEP (value);
1318 * gst_value_get_int64_range_step:
1319 * @value: a GValue initialized to GST_TYPE_INT64_RANGE
1321 * Gets the step of the range specified by @value.
1323 * Returns: the step of the range
1326 gst_value_get_int64_range_step (const GValue * value)
1328 g_return_val_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value), 0);
1330 return INT64_RANGE_STEP (value);
1334 gst_value_transform_int64_range_string (const GValue * src_value,
1335 GValue * dest_value)
1337 if (INT64_RANGE_STEP (src_value) == 1)
1338 dest_value->data[0].v_pointer =
1339 g_strdup_printf ("(gint64)[%" G_GINT64_FORMAT ",%" G_GINT64_FORMAT "]",
1340 INT64_RANGE_MIN (src_value), INT64_RANGE_MAX (src_value));
1342 dest_value->data[0].v_pointer =
1343 g_strdup_printf ("(gint64)[%" G_GINT64_FORMAT ",%" G_GINT64_FORMAT
1344 ",%" G_GINT64_FORMAT "]",
1345 INT64_RANGE_MIN (src_value) * INT64_RANGE_STEP (src_value),
1346 INT64_RANGE_MAX (src_value) * INT64_RANGE_STEP (src_value),
1347 INT64_RANGE_STEP (src_value));
1351 gst_value_compare_int64_range (const GValue * value1, const GValue * value2)
1353 /* calculate the number of values in each range */
1354 gint64 n1 = INT64_RANGE_MAX (value1) - INT64_RANGE_MIN (value1) + 1;
1355 gint64 n2 = INT64_RANGE_MAX (value2) - INT64_RANGE_MIN (value2) + 1;
1357 /* they must be equal */
1359 return GST_VALUE_UNORDERED;
1361 /* if empty, equal */
1363 return GST_VALUE_EQUAL;
1365 /* if more than one value, then it is only equal if the step is equal
1366 and bounds lie on the same value */
1368 if (INT64_RANGE_STEP (value1) == INT64_RANGE_STEP (value2) &&
1369 INT64_RANGE_STEP (value1) == INT64_RANGE_STEP (value2) &&
1370 INT64_RANGE_STEP (value1) == INT64_RANGE_STEP (value2)) {
1371 return GST_VALUE_EQUAL;
1373 return GST_VALUE_UNORDERED;
1375 /* if just one, only if the value is equal */
1376 if (INT64_RANGE_MIN (value1) == INT64_RANGE_MIN (value2))
1377 return GST_VALUE_EQUAL;
1378 return GST_VALUE_UNORDERED;
1383 gst_value_serialize_int64_range (const GValue * value)
1385 if (INT64_RANGE_STEP (value) == 1)
1386 return g_strdup_printf ("[ %" G_GINT64_FORMAT ", %" G_GINT64_FORMAT " ]",
1387 INT64_RANGE_MIN (value), INT64_RANGE_MAX (value));
1389 return g_strdup_printf ("[ %" G_GINT64_FORMAT ", %" G_GINT64_FORMAT ", %"
1390 G_GINT64_FORMAT " ]",
1391 INT64_RANGE_MIN (value) * INT64_RANGE_STEP (value),
1392 INT64_RANGE_MAX (value) * INT64_RANGE_STEP (value),
1393 INT64_RANGE_STEP (value));
1397 gst_value_deserialize_int64_range (GValue * dest, const gchar * s)
1399 g_warning ("unimplemented");
1408 gst_value_init_double_range (GValue * value)
1410 value->data[0].v_double = 0;
1411 value->data[1].v_double = 0;
1415 gst_value_copy_double_range (const GValue * src_value, GValue * dest_value)
1417 dest_value->data[0].v_double = src_value->data[0].v_double;
1418 dest_value->data[1].v_double = src_value->data[1].v_double;
1422 gst_value_collect_double_range (GValue * value, guint n_collect_values,
1423 GTypeCValue * collect_values, guint collect_flags)
1425 if (n_collect_values != 2)
1426 return g_strdup_printf ("not enough value locations for `%s' passed",
1427 G_VALUE_TYPE_NAME (value));
1428 if (collect_values[0].v_double >= collect_values[1].v_double)
1429 return g_strdup_printf ("range start is not smaller than end for `%s'",
1430 G_VALUE_TYPE_NAME (value));
1432 value->data[0].v_double = collect_values[0].v_double;
1433 value->data[1].v_double = collect_values[1].v_double;
1439 gst_value_lcopy_double_range (const GValue * value, guint n_collect_values,
1440 GTypeCValue * collect_values, guint collect_flags)
1442 gdouble *double_range_start = collect_values[0].v_pointer;
1443 gdouble *double_range_end = collect_values[1].v_pointer;
1445 if (!double_range_start)
1446 return g_strdup_printf ("start value location for `%s' passed as NULL",
1447 G_VALUE_TYPE_NAME (value));
1448 if (!double_range_end)
1449 return g_strdup_printf ("end value location for `%s' passed as NULL",
1450 G_VALUE_TYPE_NAME (value));
1452 *double_range_start = value->data[0].v_double;
1453 *double_range_end = value->data[1].v_double;
1459 * gst_value_set_double_range:
1460 * @value: a GValue initialized to GST_TYPE_DOUBLE_RANGE
1461 * @start: the start of the range
1462 * @end: the end of the range
1464 * Sets @value to the range specified by @start and @end.
1467 gst_value_set_double_range (GValue * value, gdouble start, gdouble end)
1469 g_return_if_fail (GST_VALUE_HOLDS_DOUBLE_RANGE (value));
1470 g_return_if_fail (start < end);
1472 value->data[0].v_double = start;
1473 value->data[1].v_double = end;
1477 * gst_value_get_double_range_min:
1478 * @value: a GValue initialized to GST_TYPE_DOUBLE_RANGE
1480 * Gets the minimum of the range specified by @value.
1482 * Returns: the minimum of the range
1485 gst_value_get_double_range_min (const GValue * value)
1487 g_return_val_if_fail (GST_VALUE_HOLDS_DOUBLE_RANGE (value), 0);
1489 return value->data[0].v_double;
1493 * gst_value_get_double_range_max:
1494 * @value: a GValue initialized to GST_TYPE_DOUBLE_RANGE
1496 * Gets the maximum of the range specified by @value.
1498 * Returns: the maxumum of the range
1501 gst_value_get_double_range_max (const GValue * value)
1503 g_return_val_if_fail (GST_VALUE_HOLDS_DOUBLE_RANGE (value), 0);
1505 return value->data[1].v_double;
1509 gst_value_transform_double_range_string (const GValue * src_value,
1510 GValue * dest_value)
1512 gchar s1[G_ASCII_DTOSTR_BUF_SIZE], s2[G_ASCII_DTOSTR_BUF_SIZE];
1514 dest_value->data[0].v_pointer = g_strdup_printf ("[%s,%s]",
1515 g_ascii_dtostr (s1, G_ASCII_DTOSTR_BUF_SIZE,
1516 src_value->data[0].v_double),
1517 g_ascii_dtostr (s2, G_ASCII_DTOSTR_BUF_SIZE,
1518 src_value->data[1].v_double));
1522 gst_value_compare_double_range (const GValue * value1, const GValue * value2)
1524 if (value2->data[0].v_double == value1->data[0].v_double &&
1525 value2->data[0].v_double == value1->data[0].v_double)
1526 return GST_VALUE_EQUAL;
1527 return GST_VALUE_UNORDERED;
1531 gst_value_serialize_double_range (const GValue * value)
1533 gchar d1[G_ASCII_DTOSTR_BUF_SIZE];
1534 gchar d2[G_ASCII_DTOSTR_BUF_SIZE];
1536 g_ascii_dtostr (d1, G_ASCII_DTOSTR_BUF_SIZE, value->data[0].v_double);
1537 g_ascii_dtostr (d2, G_ASCII_DTOSTR_BUF_SIZE, value->data[1].v_double);
1538 return g_strdup_printf ("[ %s, %s ]", d1, d2);
1542 gst_value_deserialize_double_range (GValue * dest, const gchar * s)
1544 g_warning ("unimplemented");
1553 gst_value_init_fraction_range (GValue * value)
1558 ftype = GST_TYPE_FRACTION;
1560 value->data[0].v_pointer = vals = g_slice_alloc0 (2 * sizeof (GValue));
1561 g_value_init (&vals[0], ftype);
1562 g_value_init (&vals[1], ftype);
1566 gst_value_free_fraction_range (GValue * value)
1568 GValue *vals = (GValue *) value->data[0].v_pointer;
1571 /* we know the two values contain fractions without internal allocs */
1572 /* g_value_unset (&vals[0]); */
1573 /* g_value_unset (&vals[1]); */
1574 g_slice_free1 (2 * sizeof (GValue), vals);
1575 value->data[0].v_pointer = NULL;
1580 gst_value_copy_fraction_range (const GValue * src_value, GValue * dest_value)
1582 GValue *vals = (GValue *) dest_value->data[0].v_pointer;
1583 GValue *src_vals = (GValue *) src_value->data[0].v_pointer;
1586 gst_value_init_fraction_range (dest_value);
1587 vals = dest_value->data[0].v_pointer;
1589 if (src_vals != NULL) {
1590 g_value_copy (&src_vals[0], &vals[0]);
1591 g_value_copy (&src_vals[1], &vals[1]);
1596 gst_value_collect_fraction_range (GValue * value, guint n_collect_values,
1597 GTypeCValue * collect_values, guint collect_flags)
1599 GValue *vals = (GValue *) value->data[0].v_pointer;
1601 if (n_collect_values != 4)
1602 return g_strdup_printf ("not enough value locations for `%s' passed",
1603 G_VALUE_TYPE_NAME (value));
1604 if (collect_values[1].v_int == 0)
1605 return g_strdup_printf ("passed '0' as first denominator for `%s'",
1606 G_VALUE_TYPE_NAME (value));
1607 if (collect_values[3].v_int == 0)
1608 return g_strdup_printf ("passed '0' as second denominator for `%s'",
1609 G_VALUE_TYPE_NAME (value));
1610 if (gst_util_fraction_compare (collect_values[0].v_int,
1611 collect_values[1].v_int, collect_values[2].v_int,
1612 collect_values[3].v_int) >= 0)
1613 return g_strdup_printf ("range start is not smaller than end for `%s'",
1614 G_VALUE_TYPE_NAME (value));
1617 gst_value_init_fraction_range (value);
1618 vals = value->data[0].v_pointer;
1621 gst_value_set_fraction (&vals[0], collect_values[0].v_int,
1622 collect_values[1].v_int);
1623 gst_value_set_fraction (&vals[1], collect_values[2].v_int,
1624 collect_values[3].v_int);
1630 gst_value_lcopy_fraction_range (const GValue * value, guint n_collect_values,
1631 GTypeCValue * collect_values, guint collect_flags)
1634 gint *dest_values[4];
1635 GValue *vals = (GValue *) value->data[0].v_pointer;
1637 if (G_UNLIKELY (n_collect_values != 4))
1638 return g_strdup_printf ("not enough value locations for `%s' passed",
1639 G_VALUE_TYPE_NAME (value));
1641 for (i = 0; i < 4; i++) {
1642 if (G_UNLIKELY (collect_values[i].v_pointer == NULL)) {
1643 return g_strdup_printf ("value location for `%s' passed as NULL",
1644 G_VALUE_TYPE_NAME (value));
1646 dest_values[i] = collect_values[i].v_pointer;
1649 if (G_UNLIKELY (vals == NULL)) {
1650 return g_strdup_printf ("Uninitialised `%s' passed",
1651 G_VALUE_TYPE_NAME (value));
1654 dest_values[0][0] = gst_value_get_fraction_numerator (&vals[0]);
1655 dest_values[1][0] = gst_value_get_fraction_denominator (&vals[0]);
1656 dest_values[2][0] = gst_value_get_fraction_numerator (&vals[1]);
1657 dest_values[3][0] = gst_value_get_fraction_denominator (&vals[1]);
1662 * gst_value_set_fraction_range:
1663 * @value: a GValue initialized to GST_TYPE_FRACTION_RANGE
1664 * @start: the start of the range (a GST_TYPE_FRACTION GValue)
1665 * @end: the end of the range (a GST_TYPE_FRACTION GValue)
1667 * Sets @value to the range specified by @start and @end.
1670 gst_value_set_fraction_range (GValue * value, const GValue * start,
1675 g_return_if_fail (GST_VALUE_HOLDS_FRACTION_RANGE (value));
1676 g_return_if_fail (GST_VALUE_HOLDS_FRACTION (start));
1677 g_return_if_fail (GST_VALUE_HOLDS_FRACTION (end));
1678 g_return_if_fail (gst_util_fraction_compare (start->data[0].v_int,
1679 start->data[1].v_int, end->data[0].v_int, end->data[1].v_int) < 0);
1681 vals = (GValue *) value->data[0].v_pointer;
1683 gst_value_init_fraction_range (value);
1684 vals = value->data[0].v_pointer;
1686 g_value_copy (start, &vals[0]);
1687 g_value_copy (end, &vals[1]);
1691 * gst_value_set_fraction_range_full:
1692 * @value: a GValue initialized to GST_TYPE_FRACTION_RANGE
1693 * @numerator_start: the numerator start of the range
1694 * @denominator_start: the denominator start of the range
1695 * @numerator_end: the numerator end of the range
1696 * @denominator_end: the denominator end of the range
1698 * Sets @value to the range specified by @numerator_start/@denominator_start
1699 * and @numerator_end/@denominator_end.
1702 gst_value_set_fraction_range_full (GValue * value,
1703 gint numerator_start, gint denominator_start,
1704 gint numerator_end, gint denominator_end)
1706 GValue start = { 0 };
1709 g_return_if_fail (value != NULL);
1710 g_return_if_fail (denominator_start != 0);
1711 g_return_if_fail (denominator_end != 0);
1712 g_return_if_fail (gst_util_fraction_compare (numerator_start,
1713 denominator_start, numerator_end, denominator_end) < 0);
1715 g_value_init (&start, GST_TYPE_FRACTION);
1716 g_value_init (&end, GST_TYPE_FRACTION);
1718 gst_value_set_fraction (&start, numerator_start, denominator_start);
1719 gst_value_set_fraction (&end, numerator_end, denominator_end);
1720 gst_value_set_fraction_range (value, &start, &end);
1722 /* we know the two values contain fractions without internal allocs */
1723 /* g_value_unset (&start); */
1724 /* g_value_unset (&end); */
1728 * gst_value_get_fraction_range_min:
1729 * @value: a GValue initialized to GST_TYPE_FRACTION_RANGE
1731 * Gets the minimum of the range specified by @value.
1733 * Returns: the minimum of the range
1736 gst_value_get_fraction_range_min (const GValue * value)
1740 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION_RANGE (value), NULL);
1742 vals = (GValue *) value->data[0].v_pointer;
1751 * gst_value_get_fraction_range_max:
1752 * @value: a GValue initialized to GST_TYPE_FRACTION_RANGE
1754 * Gets the maximum of the range specified by @value.
1756 * Returns: the maximum of the range
1759 gst_value_get_fraction_range_max (const GValue * value)
1763 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION_RANGE (value), NULL);
1765 vals = (GValue *) value->data[0].v_pointer;
1774 gst_value_serialize_fraction_range (const GValue * value)
1776 GValue *vals = (GValue *) value->data[0].v_pointer;
1780 retval = g_strdup ("[ 0/1, 0/1 ]");
1784 start = gst_value_serialize_fraction (&vals[0]);
1785 end = gst_value_serialize_fraction (&vals[1]);
1787 retval = g_strdup_printf ("[ %s, %s ]", start, end);
1796 gst_value_transform_fraction_range_string (const GValue * src_value,
1797 GValue * dest_value)
1799 dest_value->data[0].v_pointer =
1800 gst_value_serialize_fraction_range (src_value);
1804 gst_value_compare_fraction_range (const GValue * value1, const GValue * value2)
1806 GValue *vals1, *vals2;
1807 GstValueCompareFunc compare;
1809 if (value2->data[0].v_pointer == value1->data[0].v_pointer)
1810 return GST_VALUE_EQUAL; /* Only possible if both are NULL */
1812 if (value2->data[0].v_pointer == NULL || value1->data[0].v_pointer == NULL)
1813 return GST_VALUE_UNORDERED;
1815 vals1 = (GValue *) value1->data[0].v_pointer;
1816 vals2 = (GValue *) value2->data[0].v_pointer;
1817 if ((compare = gst_value_get_compare_func (&vals1[0]))) {
1818 if (gst_value_compare_with_func (&vals1[0], &vals2[0], compare) ==
1820 gst_value_compare_with_func (&vals1[1], &vals2[1], compare) ==
1822 return GST_VALUE_EQUAL;
1824 return GST_VALUE_UNORDERED;
1828 gst_value_deserialize_fraction_range (GValue * dest, const gchar * s)
1830 g_warning ("unimplemented");
1839 * gst_value_set_caps:
1840 * @value: a GValue initialized to GST_TYPE_CAPS
1841 * @caps: (transfer none): the caps to set the value to
1843 * Sets the contents of @value to @caps. A reference to the
1844 * provided @caps will be taken by the @value.
1847 gst_value_set_caps (GValue * value, const GstCaps * caps)
1849 g_return_if_fail (G_IS_VALUE (value));
1850 g_return_if_fail (G_VALUE_TYPE (value) == GST_TYPE_CAPS);
1851 g_return_if_fail (caps == NULL || GST_IS_CAPS (caps));
1853 g_value_set_boxed (value, caps);
1857 * gst_value_get_caps:
1858 * @value: a GValue initialized to GST_TYPE_CAPS
1860 * Gets the contents of @value. The reference count of the returned
1861 * #GstCaps will not be modified, therefore the caller must take one
1862 * before getting rid of the @value.
1864 * Returns: (transfer none): the contents of @value
1867 gst_value_get_caps (const GValue * value)
1869 g_return_val_if_fail (G_IS_VALUE (value), NULL);
1870 g_return_val_if_fail (G_VALUE_TYPE (value) == GST_TYPE_CAPS, NULL);
1872 return (GstCaps *) g_value_get_boxed (value);
1876 gst_value_compare_caps (const GValue * value1, const GValue * value2)
1878 GstCaps *caps1 = GST_CAPS (gst_value_get_caps (value1));
1879 GstCaps *caps2 = GST_CAPS (gst_value_get_caps (value2));
1881 if (gst_caps_is_equal (caps1, caps2))
1882 return GST_VALUE_EQUAL;
1883 return GST_VALUE_UNORDERED;
1887 gst_value_serialize_caps (const GValue * value)
1889 GstCaps *caps = g_value_get_boxed (value);
1891 return gst_caps_to_string (caps);
1895 gst_value_deserialize_caps (GValue * dest, const gchar * s)
1899 caps = gst_caps_from_string (s);
1902 g_value_take_boxed (dest, caps);
1913 gst_value_serialize_segment_internal (const GValue * value, gboolean escape)
1915 GstSegment *seg = g_value_get_boxed (value);
1919 s = gst_structure_new ("GstSegment",
1920 "flags", GST_TYPE_SEGMENT_FLAGS, seg->flags,
1921 "rate", G_TYPE_DOUBLE, seg->rate,
1922 "applied-rate", G_TYPE_DOUBLE, seg->applied_rate,
1923 "format", GST_TYPE_FORMAT, seg->format,
1924 "base", G_TYPE_UINT64, seg->base,
1925 "offset", G_TYPE_UINT64, seg->offset,
1926 "start", G_TYPE_UINT64, seg->start,
1927 "stop", G_TYPE_UINT64, seg->stop,
1928 "time", G_TYPE_UINT64, seg->time,
1929 "position", G_TYPE_UINT64, seg->position,
1930 "duration", G_TYPE_UINT64, seg->duration, NULL);
1931 t = gst_structure_to_string (s);
1933 res = g_strdup_printf ("\"%s\"", t);
1938 gst_structure_free (s);
1944 gst_value_serialize_segment (const GValue * value)
1946 return gst_value_serialize_segment_internal (value, TRUE);
1950 gst_value_deserialize_segment (GValue * dest, const gchar * s)
1956 str = gst_structure_from_string (s, NULL);
1960 res = gst_structure_get (str,
1961 "flags", GST_TYPE_SEGMENT_FLAGS, &seg.flags,
1962 "rate", G_TYPE_DOUBLE, &seg.rate,
1963 "applied-rate", G_TYPE_DOUBLE, &seg.applied_rate,
1964 "format", GST_TYPE_FORMAT, &seg.format,
1965 "base", G_TYPE_UINT64, &seg.base,
1966 "offset", G_TYPE_UINT64, &seg.offset,
1967 "start", G_TYPE_UINT64, &seg.start,
1968 "stop", G_TYPE_UINT64, &seg.stop,
1969 "time", G_TYPE_UINT64, &seg.time,
1970 "position", G_TYPE_UINT64, &seg.position,
1971 "duration", G_TYPE_UINT64, &seg.duration, NULL);
1972 gst_structure_free (str);
1975 g_value_set_boxed (dest, &seg);
1985 * gst_value_set_structure:
1986 * @value: a GValue initialized to GST_TYPE_STRUCTURE
1987 * @structure: the structure to set the value to
1989 * Sets the contents of @value to @structure. The actual
1992 gst_value_set_structure (GValue * value, const GstStructure * structure)
1994 g_return_if_fail (G_IS_VALUE (value));
1995 g_return_if_fail (G_VALUE_TYPE (value) == GST_TYPE_STRUCTURE);
1996 g_return_if_fail (structure == NULL || GST_IS_STRUCTURE (structure));
1998 g_value_set_boxed (value, structure);
2002 * gst_value_get_structure:
2003 * @value: a GValue initialized to GST_TYPE_STRUCTURE
2005 * Gets the contents of @value.
2007 * Returns: (transfer none): the contents of @value
2009 const GstStructure *
2010 gst_value_get_structure (const GValue * value)
2012 g_return_val_if_fail (G_IS_VALUE (value), NULL);
2013 g_return_val_if_fail (G_VALUE_TYPE (value) == GST_TYPE_STRUCTURE, NULL);
2015 return (GstStructure *) g_value_get_boxed (value);
2019 gst_value_serialize_structure (const GValue * value)
2021 GstStructure *structure = g_value_get_boxed (value);
2023 return gst_string_take_and_wrap (gst_structure_to_string (structure));
2027 gst_value_deserialize_structure (GValue * dest, const gchar * s)
2029 GstStructure *structure;
2032 structure = gst_structure_from_string (s, NULL);
2034 gchar *str = gst_string_unwrap (s);
2036 if (G_UNLIKELY (!str))
2039 structure = gst_structure_from_string (str, NULL);
2043 if (G_LIKELY (structure)) {
2044 g_value_take_boxed (dest, structure);
2050 /*******************
2052 *******************/
2055 * gst_value_set_caps_features:
2056 * @value: a GValue initialized to GST_TYPE_CAPS_FEATURES
2057 * @features: the features to set the value to
2059 * Sets the contents of @value to @features.
2062 gst_value_set_caps_features (GValue * value, const GstCapsFeatures * features)
2064 g_return_if_fail (G_IS_VALUE (value));
2065 g_return_if_fail (G_VALUE_TYPE (value) == GST_TYPE_CAPS_FEATURES);
2066 g_return_if_fail (features == NULL || GST_IS_CAPS_FEATURES (features));
2068 g_value_set_boxed (value, features);
2072 * gst_value_get_caps_features:
2073 * @value: a GValue initialized to GST_TYPE_CAPS_FEATURES
2075 * Gets the contents of @value.
2077 * Returns: (transfer none): the contents of @value
2079 const GstCapsFeatures *
2080 gst_value_get_caps_features (const GValue * value)
2082 g_return_val_if_fail (G_IS_VALUE (value), NULL);
2083 g_return_val_if_fail (G_VALUE_TYPE (value) == GST_TYPE_CAPS_FEATURES, NULL);
2085 return (GstCapsFeatures *) g_value_get_boxed (value);
2089 gst_value_serialize_caps_features (const GValue * value)
2091 GstCapsFeatures *features = g_value_get_boxed (value);
2093 return gst_string_take_and_wrap (gst_caps_features_to_string (features));
2097 gst_value_deserialize_caps_features (GValue * dest, const gchar * s)
2099 GstCapsFeatures *features;
2102 features = gst_caps_features_from_string (s);
2104 gchar *str = gst_string_unwrap (s);
2106 if (G_UNLIKELY (!str))
2109 features = gst_caps_features_from_string (str);
2113 if (G_LIKELY (features)) {
2114 g_value_take_boxed (dest, features);
2125 gst_value_deserialize_tag_list (GValue * dest, const gchar * s)
2127 GstTagList *taglist;
2130 taglist = gst_tag_list_new_from_string (s);
2132 gchar *str = gst_string_unwrap (s);
2134 if (G_UNLIKELY (!str))
2137 taglist = gst_tag_list_new_from_string (str);
2141 if (G_LIKELY (taglist != NULL)) {
2142 g_value_take_boxed (dest, taglist);
2149 gst_value_serialize_tag_list (const GValue * value)
2151 GstTagList *taglist = g_value_get_boxed (value);
2153 return gst_string_take_and_wrap (gst_tag_list_to_string (taglist));
2162 compare_buffer (GstBuffer * buf1, GstBuffer * buf2)
2165 GstMapInfo info1, info2;
2169 return GST_VALUE_EQUAL;
2171 size1 = gst_buffer_get_size (buf1);
2172 size2 = gst_buffer_get_size (buf2);
2175 return GST_VALUE_UNORDERED;
2178 return GST_VALUE_EQUAL;
2180 if (!gst_buffer_map (buf1, &info1, GST_MAP_READ))
2181 return GST_VALUE_UNORDERED;
2183 if (!gst_buffer_map (buf2, &info2, GST_MAP_READ)) {
2184 gst_buffer_unmap (buf1, &info1);
2185 return GST_VALUE_UNORDERED;
2188 mret = memcmp (info1.data, info2.data, info1.size);
2190 result = GST_VALUE_EQUAL;
2192 result = GST_VALUE_LESS_THAN;
2194 result = GST_VALUE_GREATER_THAN;
2196 gst_buffer_unmap (buf1, &info1);
2197 gst_buffer_unmap (buf2, &info2);
2203 gst_value_compare_buffer (const GValue * value1, const GValue * value2)
2205 GstBuffer *buf1 = gst_value_get_buffer (value1);
2206 GstBuffer *buf2 = gst_value_get_buffer (value2);
2208 return compare_buffer (buf1, buf2);
2212 gst_value_serialize_buffer (const GValue * value)
2220 buffer = gst_value_get_buffer (value);
2224 if (!gst_buffer_map (buffer, &info, GST_MAP_READ))
2229 string = g_malloc (info.size * 2 + 1);
2230 for (i = 0; i < info.size; i++) {
2231 sprintf (string + i * 2, "%02x", data[i]);
2233 string[info.size * 2] = 0;
2235 gst_buffer_unmap (buffer, &info);
2241 gst_value_deserialize_buffer (GValue * dest, const gchar * s)
2254 buffer = gst_buffer_new_allocate (NULL, len / 2, NULL);
2255 if (!gst_buffer_map (buffer, &info, GST_MAP_WRITE))
2259 for (i = 0; i < len / 2; i++) {
2260 if (!isxdigit ((int) s[i * 2]) || !isxdigit ((int) s[i * 2 + 1]))
2263 ts[0] = s[i * 2 + 0];
2264 ts[1] = s[i * 2 + 1];
2267 data[i] = (guint8) strtoul (ts, NULL, 16);
2269 gst_buffer_unmap (buffer, &info);
2271 gst_value_take_buffer (dest, buffer);
2286 gst_buffer_unref (buffer);
2287 gst_buffer_unmap (buffer, &info);
2296 /* This function is mostly used for comparing image/buffer tags in taglists */
2298 gst_value_compare_sample (const GValue * value1, const GValue * value2)
2300 GstBuffer *buf1 = gst_sample_get_buffer (gst_value_get_sample (value1));
2301 GstBuffer *buf2 = gst_sample_get_buffer (gst_value_get_sample (value2));
2303 /* FIXME: should we take into account anything else such as caps? */
2304 return compare_buffer (buf1, buf2);
2308 gst_value_serialize_sample (const GValue * value)
2310 const GstStructure *info_structure;
2311 GstSegment *segment;
2315 GValue val = { 0, };
2316 gchar *info_str, *caps_str, *tmp;
2317 gchar *buf_str, *seg_str, *s;
2319 sample = g_value_get_boxed (value);
2321 buffer = gst_sample_get_buffer (sample);
2323 g_value_init (&val, GST_TYPE_BUFFER);
2324 g_value_set_boxed (&val, buffer);
2325 buf_str = gst_value_serialize_buffer (&val);
2326 g_value_unset (&val);
2328 buf_str = g_strdup ("None");
2331 caps = gst_sample_get_caps (sample);
2333 tmp = gst_caps_to_string (caps);
2334 caps_str = g_base64_encode ((guchar *) tmp, strlen (tmp) + 1);
2335 g_strdelimit (caps_str, "=", '_');
2338 caps_str = g_strdup ("None");
2341 segment = gst_sample_get_segment (sample);
2343 g_value_init (&val, GST_TYPE_SEGMENT);
2344 g_value_set_boxed (&val, segment);
2345 tmp = gst_value_serialize_segment_internal (&val, FALSE);
2346 seg_str = g_base64_encode ((guchar *) tmp, strlen (tmp) + 1);
2347 g_strdelimit (seg_str, "=", '_');
2349 g_value_unset (&val);
2351 seg_str = g_strdup ("None");
2354 info_structure = gst_sample_get_info (sample);
2355 if (info_structure) {
2356 tmp = gst_structure_to_string (info_structure);
2357 info_str = g_base64_encode ((guchar *) tmp, strlen (tmp) + 1);
2358 g_strdelimit (info_str, "=", '_');
2361 info_str = g_strdup ("None");
2364 s = g_strconcat (buf_str, ":", caps_str, ":", seg_str, ":", info_str, NULL);
2374 gst_value_deserialize_sample (GValue * dest, const gchar * s)
2376 GValue bval = G_VALUE_INIT, sval = G_VALUE_INIT;
2380 gboolean ret = FALSE;
2385 GST_TRACE ("deserialize '%s'", s);
2387 fields = g_strsplit (s, ":", -1);
2388 len = g_strv_length (fields);
2392 g_value_init (&bval, GST_TYPE_BUFFER);
2393 g_value_init (&sval, GST_TYPE_SEGMENT);
2395 if (!gst_value_deserialize_buffer (&bval, fields[0]))
2398 if (strcmp (fields[1], "None") != 0) {
2399 g_strdelimit (fields[1], "_", '=');
2400 g_base64_decode_inplace (fields[1], &outlen);
2401 GST_TRACE ("caps : %s", fields[1]);
2402 caps = gst_caps_from_string (fields[1]);
2409 if (strcmp (fields[2], "None") != 0) {
2410 g_strdelimit (fields[2], "_", '=');
2411 g_base64_decode_inplace (fields[2], &outlen);
2412 GST_TRACE ("segment : %s", fields[2]);
2413 if (!gst_value_deserialize_segment (&sval, fields[2]))
2417 if (strcmp (fields[3], "None") != 0) {
2418 g_strdelimit (fields[3], "_", '=');
2419 g_base64_decode_inplace (fields[3], &outlen);
2420 GST_TRACE ("info : %s", fields[3]);
2421 info = gst_structure_from_string (fields[3], NULL);
2428 sample = gst_sample_new (gst_value_get_buffer (&bval), caps,
2429 g_value_get_boxed (&sval), info);
2431 g_value_take_boxed (dest, sample);
2434 gst_caps_unref (caps);
2440 g_value_unset (&bval);
2441 g_value_unset (&sval);
2445 g_strfreev (fields);
2455 gst_value_compare_boolean (const GValue * value1, const GValue * value2)
2457 if ((value1->data[0].v_int != 0) == (value2->data[0].v_int != 0))
2458 return GST_VALUE_EQUAL;
2459 return GST_VALUE_UNORDERED;
2463 gst_value_serialize_boolean (const GValue * value)
2465 if (value->data[0].v_int) {
2466 return g_strdup ("true");
2468 return g_strdup ("false");
2472 gst_value_deserialize_boolean (GValue * dest, const gchar * s)
2474 gboolean ret = FALSE;
2476 if (g_ascii_strcasecmp (s, "true") == 0 ||
2477 g_ascii_strcasecmp (s, "yes") == 0 ||
2478 g_ascii_strcasecmp (s, "t") == 0 || strcmp (s, "1") == 0) {
2479 g_value_set_boolean (dest, TRUE);
2481 } else if (g_ascii_strcasecmp (s, "false") == 0 ||
2482 g_ascii_strcasecmp (s, "no") == 0 ||
2483 g_ascii_strcasecmp (s, "f") == 0 || strcmp (s, "0") == 0) {
2484 g_value_set_boolean (dest, FALSE);
2491 #define CREATE_SERIALIZATION_START(_type,_macro) \
2493 gst_value_compare_ ## _type \
2494 (const GValue * value1, const GValue * value2) \
2496 g ## _type val1 = g_value_get_ ## _type (value1); \
2497 g ## _type val2 = g_value_get_ ## _type (value2); \
2499 return GST_VALUE_GREATER_THAN; \
2501 return GST_VALUE_LESS_THAN; \
2502 return GST_VALUE_EQUAL; \
2506 gst_value_serialize_ ## _type (const GValue * value) \
2508 GValue val = { 0, }; \
2509 g_value_init (&val, G_TYPE_STRING); \
2510 if (!g_value_transform (value, &val)) \
2511 g_assert_not_reached (); \
2512 /* NO_COPY_MADNESS!!! */ \
2513 return (char *) g_value_get_string (&val); \
2516 /* deserialize the given s into to as a gint64.
2517 * check if the result is actually storeable in the given size number of
2521 gst_value_deserialize_int_helper (gint64 * to, const gchar * s,
2522 gint64 min, gint64 max, gint size)
2524 gboolean ret = FALSE;
2529 *to = g_ascii_strtoull (s, &end, 0);
2530 /* a range error is a definitive no-no */
2531 if (errno == ERANGE) {
2538 if (g_ascii_strcasecmp (s, "little_endian") == 0) {
2539 *to = G_LITTLE_ENDIAN;
2541 } else if (g_ascii_strcasecmp (s, "big_endian") == 0) {
2544 } else if (g_ascii_strcasecmp (s, "byte_order") == 0) {
2547 } else if (g_ascii_strcasecmp (s, "min") == 0) {
2550 } else if (g_ascii_strcasecmp (s, "max") == 0) {
2556 /* by definition, a gint64 fits into a gint64; so ignore those */
2557 if (size != sizeof (mask)) {
2559 /* for positive numbers, we create a mask of 1's outside of the range
2560 * and 0's inside the range. An and will thus keep only 1 bits
2561 * outside of the range */
2562 mask <<= (size * 8);
2563 if ((mask & *to) != 0) {
2567 /* for negative numbers, we do a 2's complement version */
2568 mask <<= ((size * 8) - 1);
2569 if ((mask & *to) != mask) {
2578 #define CREATE_SERIALIZATION(_type,_macro) \
2579 CREATE_SERIALIZATION_START(_type,_macro) \
2582 gst_value_deserialize_ ## _type (GValue * dest, const gchar *s) \
2586 if (gst_value_deserialize_int_helper (&x, s, G_MIN ## _macro, \
2587 G_MAX ## _macro, sizeof (g ## _type))) { \
2588 g_value_set_ ## _type (dest, /*(g ## _type)*/ x); \
2595 #define CREATE_USERIALIZATION(_type,_macro) \
2596 CREATE_SERIALIZATION_START(_type,_macro) \
2599 gst_value_deserialize_ ## _type (GValue * dest, const gchar *s) \
2603 gboolean ret = FALSE; \
2606 x = g_ascii_strtoull (s, &end, 0); \
2607 /* a range error is a definitive no-no */ \
2608 if (errno == ERANGE) { \
2611 /* the cast ensures the range check later on makes sense */ \
2612 x = (g ## _type) x; \
2616 if (g_ascii_strcasecmp (s, "little_endian") == 0) { \
2617 x = G_LITTLE_ENDIAN; \
2619 } else if (g_ascii_strcasecmp (s, "big_endian") == 0) { \
2622 } else if (g_ascii_strcasecmp (s, "byte_order") == 0) { \
2625 } else if (g_ascii_strcasecmp (s, "min") == 0) { \
2628 } else if (g_ascii_strcasecmp (s, "max") == 0) { \
2629 x = G_MAX ## _macro; \
2634 if (x > G_MAX ## _macro) { \
2637 g_value_set_ ## _type (dest, x); \
2643 #define REGISTER_SERIALIZATION(_gtype, _type) \
2645 static const GstValueTable gst_value = { \
2647 gst_value_compare_ ## _type, \
2648 gst_value_serialize_ ## _type, \
2649 gst_value_deserialize_ ## _type, \
2652 gst_value_register (&gst_value); \
2655 CREATE_SERIALIZATION (int, INT);
2656 CREATE_SERIALIZATION (int64, INT64);
2657 CREATE_SERIALIZATION (long, LONG);
2659 CREATE_USERIALIZATION (uint, UINT);
2660 CREATE_USERIALIZATION (uint64, UINT64);
2661 CREATE_USERIALIZATION (ulong, ULONG);
2663 /* FIXME 0.11: remove this again, plugins shouldn't have uchar properties */
2665 #define G_MAXUCHAR 255
2667 CREATE_USERIALIZATION (uchar, UCHAR);
2673 gst_value_compare_double (const GValue * value1, const GValue * value2)
2675 if (value1->data[0].v_double > value2->data[0].v_double)
2676 return GST_VALUE_GREATER_THAN;
2677 if (value1->data[0].v_double < value2->data[0].v_double)
2678 return GST_VALUE_LESS_THAN;
2679 if (value1->data[0].v_double == value2->data[0].v_double)
2680 return GST_VALUE_EQUAL;
2681 return GST_VALUE_UNORDERED;
2685 gst_value_serialize_double (const GValue * value)
2687 gchar d[G_ASCII_DTOSTR_BUF_SIZE];
2689 g_ascii_dtostr (d, G_ASCII_DTOSTR_BUF_SIZE, value->data[0].v_double);
2690 return g_strdup (d);
2694 gst_value_deserialize_double (GValue * dest, const gchar * s)
2697 gboolean ret = FALSE;
2700 x = g_ascii_strtod (s, &end);
2704 if (g_ascii_strcasecmp (s, "min") == 0) {
2707 } else if (g_ascii_strcasecmp (s, "max") == 0) {
2713 g_value_set_double (dest, x);
2723 gst_value_compare_float (const GValue * value1, const GValue * value2)
2725 if (value1->data[0].v_float > value2->data[0].v_float)
2726 return GST_VALUE_GREATER_THAN;
2727 if (value1->data[0].v_float < value2->data[0].v_float)
2728 return GST_VALUE_LESS_THAN;
2729 if (value1->data[0].v_float == value2->data[0].v_float)
2730 return GST_VALUE_EQUAL;
2731 return GST_VALUE_UNORDERED;
2735 gst_value_serialize_float (const GValue * value)
2737 gchar d[G_ASCII_DTOSTR_BUF_SIZE];
2739 g_ascii_dtostr (d, G_ASCII_DTOSTR_BUF_SIZE, value->data[0].v_float);
2740 return g_strdup (d);
2744 gst_value_deserialize_float (GValue * dest, const gchar * s)
2747 gboolean ret = FALSE;
2750 x = g_ascii_strtod (s, &end);
2754 if (g_ascii_strcasecmp (s, "min") == 0) {
2757 } else if (g_ascii_strcasecmp (s, "max") == 0) {
2762 if (x > G_MAXFLOAT || x < -G_MAXFLOAT)
2765 g_value_set_float (dest, (float) x);
2775 gst_value_compare_string (const GValue * value1, const GValue * value2)
2777 if (G_UNLIKELY (!value1->data[0].v_pointer || !value2->data[0].v_pointer)) {
2778 /* if only one is NULL, no match - otherwise both NULL == EQUAL */
2779 if (value1->data[0].v_pointer != value2->data[0].v_pointer)
2780 return GST_VALUE_UNORDERED;
2782 gint x = strcmp (value1->data[0].v_pointer, value2->data[0].v_pointer);
2785 return GST_VALUE_LESS_THAN;
2787 return GST_VALUE_GREATER_THAN;
2790 return GST_VALUE_EQUAL;
2794 gst_string_measure_wrapping (const gchar * s)
2797 gboolean wrap = FALSE;
2799 if (G_UNLIKELY (s == NULL))
2802 /* Special case: the actual string NULL needs wrapping */
2803 if (G_UNLIKELY (strcmp (s, "NULL") == 0))
2808 if (GST_ASCII_IS_STRING (*s)) {
2810 } else if (*s < 0x20 || *s >= 0x7f) {
2820 /* Wrap the string if we found something that needs
2821 * wrapping, or the empty string (len == 0) */
2822 return (wrap || len == 0) ? len : -1;
2826 gst_string_wrap_inner (const gchar * s, gint len)
2830 e = d = g_malloc (len + 3);
2834 if (GST_ASCII_IS_STRING (*s)) {
2836 } else if (*s < 0x20 || *s >= 0x7f) {
2838 *e++ = '0' + ((*(guchar *) s) >> 6);
2839 *e++ = '0' + (((*s) >> 3) & 0x7);
2840 *e++ = '0' + ((*s++) & 0x7);
2849 g_assert (e - d <= len + 3);
2853 /* Do string wrapping/escaping */
2855 gst_string_wrap (const gchar * s)
2857 gint len = gst_string_measure_wrapping (s);
2859 if (G_LIKELY (len < 0))
2860 return g_strdup (s);
2862 return gst_string_wrap_inner (s, len);
2865 /* Same as above, but take ownership of the string */
2867 gst_string_take_and_wrap (gchar * s)
2870 gint len = gst_string_measure_wrapping (s);
2872 if (G_LIKELY (len < 0))
2875 out = gst_string_wrap_inner (s, len);
2882 * This function takes a string delimited with double quotes (")
2883 * and unescapes any \xxx octal numbers.
2885 * If sequences of \y are found where y is not in the range of
2886 * 0->3, y is copied unescaped.
2888 * If \xyy is found where x is an octal number but y is not, an
2889 * error is encountered and NULL is returned.
2891 * the input string must be \0 terminated.
2894 gst_string_unwrap (const gchar * s)
2897 gchar *read, *write;
2899 /* NULL string returns NULL */
2903 /* strings not starting with " are invalid */
2907 /* make copy of original string to hold the result. This
2908 * string will always be smaller than the original */
2913 /* need to move to the next position as we parsed the " */
2917 if (GST_ASCII_IS_STRING (*read)) {
2918 /* normal chars are just copied */
2920 } else if (*read == '"') {
2921 /* quote marks end of string */
2923 } else if (*read == '\\') {
2924 /* got an escape char, move to next position to read a tripplet
2925 * of octal numbers */
2927 /* is the next char a possible first octal number? */
2928 if (*read >= '0' && *read <= '3') {
2929 /* parse other 2 numbers, if one of them is not in the range of
2930 * an octal number, we error. We also catch the case where a zero
2931 * byte is found here. */
2932 if (read[1] < '0' || read[1] > '7' || read[2] < '0' || read[2] > '7')
2935 /* now convert the octal number to a byte again. */
2936 *write++ = ((read[0] - '0') << 6) +
2937 ((read[1] - '0') << 3) + (read[2] - '0');
2941 /* if we run into a \0 here, we definitely won't get a quote later */
2945 /* else copy \X sequence */
2949 /* weird character, error */
2953 /* if the string is not ending in " and zero terminated, we error */
2954 if (*read != '"' || read[1] != '\0')
2957 /* null terminate result string and return */
2967 gst_value_serialize_string (const GValue * value)
2969 return gst_string_wrap (value->data[0].v_pointer);
2973 gst_value_deserialize_string (GValue * dest, const gchar * s)
2975 if (G_UNLIKELY (strcmp (s, "NULL") == 0)) {
2976 g_value_set_string (dest, NULL);
2978 } else if (G_LIKELY (*s != '"')) {
2979 if (!g_utf8_validate (s, -1, NULL))
2981 g_value_set_string (dest, s);
2984 gchar *str = gst_string_unwrap (s);
2985 if (G_UNLIKELY (!str))
2987 g_value_take_string (dest, str);
2998 gst_value_compare_enum (const GValue * value1, const GValue * value2)
3000 GEnumValue *en1, *en2;
3001 GEnumClass *klass1 = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (value1));
3002 GEnumClass *klass2 = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (value2));
3004 g_return_val_if_fail (klass1, GST_VALUE_UNORDERED);
3005 g_return_val_if_fail (klass2, GST_VALUE_UNORDERED);
3006 en1 = g_enum_get_value (klass1, g_value_get_enum (value1));
3007 en2 = g_enum_get_value (klass2, g_value_get_enum (value2));
3008 g_type_class_unref (klass1);
3009 g_type_class_unref (klass2);
3010 g_return_val_if_fail (en1, GST_VALUE_UNORDERED);
3011 g_return_val_if_fail (en2, GST_VALUE_UNORDERED);
3012 if (en1->value < en2->value)
3013 return GST_VALUE_LESS_THAN;
3014 if (en1->value > en2->value)
3015 return GST_VALUE_GREATER_THAN;
3017 return GST_VALUE_EQUAL;
3021 gst_value_serialize_enum (const GValue * value)
3024 GEnumClass *klass = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (value));
3026 g_return_val_if_fail (klass, NULL);
3027 en = g_enum_get_value (klass, g_value_get_enum (value));
3028 g_type_class_unref (klass);
3030 /* might be one of the custom formats registered later */
3031 if (G_UNLIKELY (en == NULL && G_VALUE_TYPE (value) == GST_TYPE_FORMAT)) {
3032 const GstFormatDefinition *format_def;
3034 format_def = gst_format_get_details ((GstFormat) g_value_get_enum (value));
3035 g_return_val_if_fail (format_def != NULL, NULL);
3036 return g_strdup (format_def->description);
3039 g_return_val_if_fail (en, NULL);
3040 return g_strdup (en->value_name);
3044 gst_value_deserialize_enum_iter_cmp (const GValue * format_def_value,
3047 const GstFormatDefinition *format_def =
3048 g_value_get_pointer (format_def_value);
3050 if (g_ascii_strcasecmp (s, format_def->nick) == 0)
3053 return g_ascii_strcasecmp (s, format_def->description);
3057 gst_value_deserialize_enum (GValue * dest, const gchar * s)
3060 gchar *endptr = NULL;
3061 GEnumClass *klass = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (dest));
3063 g_return_val_if_fail (klass, FALSE);
3064 if (!(en = g_enum_get_value_by_name (klass, s))) {
3065 if (!(en = g_enum_get_value_by_nick (klass, s))) {
3066 gint i = strtol (s, &endptr, 0);
3068 if (endptr && *endptr == '\0') {
3069 en = g_enum_get_value (klass, i);
3073 g_type_class_unref (klass);
3075 /* might be one of the custom formats registered later */
3076 if (G_UNLIKELY (en == NULL && G_VALUE_TYPE (dest) == GST_TYPE_FORMAT)) {
3077 GValue res = { 0, };
3078 const GstFormatDefinition *format_def;
3082 iter = gst_format_iterate_definitions ();
3084 found = gst_iterator_find_custom (iter,
3085 (GCompareFunc) gst_value_deserialize_enum_iter_cmp, &res, (gpointer) s);
3087 g_return_val_if_fail (found, FALSE);
3088 format_def = g_value_get_pointer (&res);
3089 g_return_val_if_fail (format_def != NULL, FALSE);
3090 g_value_set_enum (dest, (gint) format_def->value);
3091 g_value_unset (&res);
3092 gst_iterator_free (iter);
3096 g_return_val_if_fail (en, FALSE);
3097 g_value_set_enum (dest, en->value);
3105 /* we just compare the value here */
3107 gst_value_compare_flags (const GValue * value1, const GValue * value2)
3110 GFlagsClass *klass1 =
3111 (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (value1));
3112 GFlagsClass *klass2 =
3113 (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (value2));
3115 g_return_val_if_fail (klass1, GST_VALUE_UNORDERED);
3116 g_return_val_if_fail (klass2, GST_VALUE_UNORDERED);
3117 fl1 = g_value_get_flags (value1);
3118 fl2 = g_value_get_flags (value2);
3119 g_type_class_unref (klass1);
3120 g_type_class_unref (klass2);
3122 return GST_VALUE_LESS_THAN;
3124 return GST_VALUE_GREATER_THAN;
3126 return GST_VALUE_EQUAL;
3129 /* the different flags are serialized separated with a + */
3131 gst_value_serialize_flags (const GValue * value)
3135 GFlagsClass *klass = (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (value));
3136 gchar *result, *tmp;
3137 gboolean first = TRUE;
3139 g_return_val_if_fail (klass, NULL);
3141 flags = g_value_get_flags (value);
3143 /* if no flags are set, try to serialize to the _NONE string */
3145 fl = g_flags_get_first_value (klass, flags);
3147 return g_strdup (fl->value_name);
3149 return g_strdup ("0");
3152 /* some flags are set, so serialize one by one */
3153 result = g_strdup ("");
3155 fl = g_flags_get_first_value (klass, flags);
3157 tmp = g_strconcat (result, (first ? "" : "+"), fl->value_name, NULL);
3163 flags &= ~fl->value;
3166 g_type_class_unref (klass);
3172 gst_value_deserialize_flags (GValue * dest, const gchar * s)
3175 gchar *endptr = NULL;
3176 GFlagsClass *klass = (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (dest));
3181 g_return_val_if_fail (klass, FALSE);
3183 /* split into parts delimited with + */
3184 split = g_strsplit (s, "+", 0);
3188 /* loop over each part */
3190 if (!(fl = g_flags_get_value_by_name (klass, split[i]))) {
3191 if (!(fl = g_flags_get_value_by_nick (klass, split[i]))) {
3192 gint val = strtol (split[i], &endptr, 0);
3194 /* just or numeric value */
3195 if (endptr && *endptr == '\0') {
3206 g_type_class_unref (klass);
3207 g_value_set_flags (dest, flags);
3217 gst_value_is_subset_int_range_int_range (const GValue * value1,
3218 const GValue * value2)
3222 g_return_val_if_fail (GST_VALUE_HOLDS_INT_RANGE (value1), FALSE);
3223 g_return_val_if_fail (GST_VALUE_HOLDS_INT_RANGE (value2), FALSE);
3225 if (INT_RANGE_MIN (value1) * INT_RANGE_STEP (value1) <
3226 INT_RANGE_MIN (value2) * INT_RANGE_STEP (value2))
3228 if (INT_RANGE_MAX (value1) * INT_RANGE_STEP (value1) >
3229 INT_RANGE_MAX (value2) * INT_RANGE_STEP (value2))
3232 if (INT_RANGE_MIN (value2) == INT_RANGE_MAX (value2)) {
3233 if ((INT_RANGE_MIN (value2) * INT_RANGE_STEP (value2)) %
3234 INT_RANGE_STEP (value1))
3240 gst_util_greatest_common_divisor (INT_RANGE_STEP (value1),
3241 INT_RANGE_STEP (value2));
3242 if (gcd != MIN (INT_RANGE_STEP (value1), INT_RANGE_STEP (value2)))
3249 gst_value_is_subset_int64_range_int64_range (const GValue * value1,
3250 const GValue * value2)
3254 g_return_val_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value1), FALSE);
3255 g_return_val_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value2), FALSE);
3257 if (INT64_RANGE_MIN (value1) < INT64_RANGE_MIN (value2))
3259 if (INT64_RANGE_MAX (value1) > INT64_RANGE_MAX (value2))
3262 if (INT64_RANGE_MIN (value2) == INT64_RANGE_MAX (value2)) {
3263 if ((INT64_RANGE_MIN (value2) * INT64_RANGE_STEP (value2)) %
3264 INT64_RANGE_STEP (value1))
3270 gst_util_greatest_common_divisor_int64 (INT64_RANGE_STEP (value1),
3271 INT64_RANGE_STEP (value2));
3272 if (gcd != MIN (INT64_RANGE_STEP (value1), INT64_RANGE_STEP (value2)))
3279 * gst_value_is_subset:
3280 * @value1: a #GValue
3281 * @value2: a #GValue
3283 * Check that @value1 is a subset of @value2.
3285 * Return: %TRUE is @value1 is a subset of @value2
3288 gst_value_is_subset (const GValue * value1, const GValue * value2)
3290 /* special case for int/int64 ranges, since we cannot compute
3291 the difference for those when they have different steps,
3292 and it's actually a lot simpler to compute whether a range
3293 is a subset of another. */
3294 if (GST_VALUE_HOLDS_INT_RANGE (value1) && GST_VALUE_HOLDS_INT_RANGE (value2)) {
3295 return gst_value_is_subset_int_range_int_range (value1, value2);
3296 } else if (GST_VALUE_HOLDS_INT64_RANGE (value1)
3297 && GST_VALUE_HOLDS_INT64_RANGE (value2)) {
3298 return gst_value_is_subset_int64_range_int64_range (value1, value2);
3306 * -> 1 - [1,2] = empty
3310 * -> [1,2] - [1,3] = empty
3314 * -> {1,3} - {1,2} = 3
3317 * First caps subtraction needs to return a non-empty set, second
3318 * subtractions needs to give en empty set.
3319 * Both substractions are switched below, as it's faster that way.
3321 if (!gst_value_subtract (NULL, value1, value2)) {
3322 if (gst_value_subtract (NULL, value2, value1)) {
3334 gst_value_union_int_int_range (GValue * dest, const GValue * src1,
3335 const GValue * src2)
3337 gint v = src1->data[0].v_int;
3339 /* check if it's already in the range */
3340 if (INT_RANGE_MIN (src2) * INT_RANGE_STEP (src2) <= v &&
3341 INT_RANGE_MAX (src2) * INT_RANGE_STEP (src2) >= v &&
3342 v % INT_RANGE_STEP (src2) == 0) {
3344 gst_value_init_and_copy (dest, src2);
3348 /* check if it extends the range */
3349 if (v == (INT_RANGE_MIN (src2) - 1) * INT_RANGE_STEP (src2)) {
3351 gst_value_init_and_copy (dest, src2);
3352 --INT_RANGE_MIN (src2);
3356 if (v == (INT_RANGE_MAX (src2) + 1) * INT_RANGE_STEP (src2)) {
3358 gst_value_init_and_copy (dest, src2);
3359 ++INT_RANGE_MAX (src2);
3368 gst_value_union_int_range_int_range (GValue * dest, const GValue * src1,
3369 const GValue * src2)
3371 /* We can union in several special cases:
3372 1 - one is a subset of another
3373 2 - same step and not disjoint
3374 3 - different step, at least one with one value which matches a 'next' or 'previous'
3379 if (gst_value_is_subset_int_range_int_range (src1, src2)) {
3381 gst_value_init_and_copy (dest, src2);
3384 if (gst_value_is_subset_int_range_int_range (src2, src1)) {
3386 gst_value_init_and_copy (dest, src1);
3390 /* 2 - same step and not disjoint */
3391 if (INT_RANGE_STEP (src1) == INT_RANGE_STEP (src2)) {
3392 if ((INT_RANGE_MIN (src1) <= INT_RANGE_MAX (src2) + 1 &&
3393 INT_RANGE_MAX (src1) >= INT_RANGE_MIN (src2) - 1) ||
3394 (INT_RANGE_MIN (src2) <= INT_RANGE_MAX (src1) + 1 &&
3395 INT_RANGE_MAX (src2) >= INT_RANGE_MIN (src1) - 1)) {
3397 gint step = INT_RANGE_STEP (src1);
3398 gint min = step * MIN (INT_RANGE_MIN (src1), INT_RANGE_MIN (src2));
3399 gint max = step * MAX (INT_RANGE_MAX (src1), INT_RANGE_MAX (src2));
3400 g_value_init (dest, GST_TYPE_INT_RANGE);
3401 gst_value_set_int_range_step (dest, min, max, step);
3407 /* 3 - single value matches next or previous */
3408 if (INT_RANGE_STEP (src1) != INT_RANGE_STEP (src2)) {
3409 gint n1 = INT_RANGE_MAX (src1) - INT_RANGE_MIN (src1) + 1;
3410 gint n2 = INT_RANGE_MAX (src2) - INT_RANGE_MIN (src2) + 1;
3411 if (n1 == 1 || n2 == 1) {
3412 const GValue *range_value = NULL;
3416 scalar = INT_RANGE_MIN (src1) * INT_RANGE_STEP (src1);
3417 } else if (n2 == 1) {
3419 scalar = INT_RANGE_MIN (src2) * INT_RANGE_STEP (src2);
3423 (INT_RANGE_MIN (range_value) - 1) * INT_RANGE_STEP (range_value)) {
3425 gst_value_init_and_copy (dest, range_value);
3426 --INT_RANGE_MIN (range_value);
3429 } else if (scalar ==
3430 (INT_RANGE_MAX (range_value) + 1) * INT_RANGE_STEP (range_value)) {
3432 gst_value_init_and_copy (dest, range_value);
3433 ++INT_RANGE_MIN (range_value);
3440 /* If we get there, we did not find a way to make a union that can be
3441 represented with our simplistic model. */
3450 gst_value_intersect_int_int_range (GValue * dest, const GValue * src1,
3451 const GValue * src2)
3453 if (INT_RANGE_MIN (src2) * INT_RANGE_STEP (src2) <= src1->data[0].v_int &&
3454 INT_RANGE_MAX (src2) * INT_RANGE_STEP (src2) >= src1->data[0].v_int &&
3455 src1->data[0].v_int % INT_RANGE_STEP (src2) == 0) {
3457 gst_value_init_and_copy (dest, src1);
3465 gst_value_intersect_int_range_int_range (GValue * dest, const GValue * src1,
3466 const GValue * src2)
3473 INT_RANGE_STEP (src1) /
3474 gst_util_greatest_common_divisor (INT_RANGE_STEP (src1),
3475 INT_RANGE_STEP (src2));
3476 if (G_MAXINT32 / INT_RANGE_STEP (src2) < step)
3478 step *= INT_RANGE_STEP (src2);
3481 MAX (INT_RANGE_MIN (src1) * INT_RANGE_STEP (src1),
3482 INT_RANGE_MIN (src2) * INT_RANGE_STEP (src2));
3483 min = (min + step - 1) / step * step;
3485 MIN (INT_RANGE_MAX (src1) * INT_RANGE_STEP (src1),
3486 INT_RANGE_MAX (src2) * INT_RANGE_STEP (src2));
3487 max = max / step * step;
3491 g_value_init (dest, GST_TYPE_INT_RANGE);
3492 gst_value_set_int_range_step (dest, min, max, step);
3498 g_value_init (dest, G_TYPE_INT);
3499 g_value_set_int (dest, min);
3507 #define INT64_RANGE_MIN_VAL(v) (INT64_RANGE_MIN (v) * INT64_RANGE_STEP (v))
3508 #define INT64_RANGE_MAX_VAL(v) (INT64_RANGE_MAX (v) * INT64_RANGE_STEP (v))
3511 gst_value_intersect_int64_int64_range (GValue * dest, const GValue * src1,
3512 const GValue * src2)
3514 if (INT64_RANGE_MIN_VAL (src2) <= src1->data[0].v_int64 &&
3515 INT64_RANGE_MAX_VAL (src2) >= src1->data[0].v_int64 &&
3516 src1->data[0].v_int64 % INT64_RANGE_STEP (src2) == 0) {
3518 gst_value_init_and_copy (dest, src1);
3526 gst_value_intersect_int64_range_int64_range (GValue * dest, const GValue * src1,
3527 const GValue * src2)
3534 INT64_RANGE_STEP (src1) /
3535 gst_util_greatest_common_divisor_int64 (INT64_RANGE_STEP (src1),
3536 INT64_RANGE_STEP (src2));
3537 if (G_MAXINT64 / INT64_RANGE_STEP (src2) < step)
3539 step *= INT64_RANGE_STEP (src2);
3542 MAX (INT64_RANGE_MIN (src1) * INT64_RANGE_STEP (src1),
3543 INT64_RANGE_MIN (src2) * INT64_RANGE_STEP (src2));
3544 min = (min + step - 1) / step * step;
3546 MIN (INT64_RANGE_MAX (src1) * INT64_RANGE_STEP (src1),
3547 INT64_RANGE_MAX (src2) * INT64_RANGE_STEP (src2));
3548 max = max / step * step;
3552 g_value_init (dest, GST_TYPE_INT64_RANGE);
3553 gst_value_set_int64_range_step (dest, min, max, step);
3559 g_value_init (dest, G_TYPE_INT64);
3560 g_value_set_int64 (dest, min);
3569 gst_value_intersect_double_double_range (GValue * dest, const GValue * src1,
3570 const GValue * src2)
3572 if (src2->data[0].v_double <= src1->data[0].v_double &&
3573 src2->data[1].v_double >= src1->data[0].v_double) {
3575 gst_value_init_and_copy (dest, src1);
3583 gst_value_intersect_double_range_double_range (GValue * dest,
3584 const GValue * src1, const GValue * src2)
3589 min = MAX (src1->data[0].v_double, src2->data[0].v_double);
3590 max = MIN (src1->data[1].v_double, src2->data[1].v_double);
3594 g_value_init (dest, GST_TYPE_DOUBLE_RANGE);
3595 gst_value_set_double_range (dest, min, max);
3601 g_value_init (dest, G_TYPE_DOUBLE);
3602 g_value_set_int (dest, (int) min);
3611 gst_value_intersect_list (GValue * dest, const GValue * value1,
3612 const GValue * value2)
3615 GValue intersection = { 0, };
3616 gboolean ret = FALSE;
3618 size = VALUE_LIST_SIZE (value1);
3619 for (i = 0; i < size; i++) {
3620 const GValue *cur = VALUE_LIST_GET_VALUE (value1, i);
3622 /* quicker version when we don't need the resulting set */
3624 if (gst_value_intersect (NULL, cur, value2)) {
3631 if (gst_value_intersect (&intersection, cur, value2)) {
3634 gst_value_move (dest, &intersection);
3636 } else if (GST_VALUE_HOLDS_LIST (dest)) {
3637 _gst_value_list_append_and_take_value (dest, &intersection);
3641 gst_value_move (&temp, dest);
3642 gst_value_list_merge (dest, &temp, &intersection);
3643 g_value_unset (&temp);
3644 g_value_unset (&intersection);
3653 gst_value_intersect_array (GValue * dest, const GValue * src1,
3654 const GValue * src2)
3660 /* only works on similar-sized arrays */
3661 size = gst_value_array_get_size (src1);
3662 if (size != gst_value_array_get_size (src2))
3665 /* quicker value when we don't need the resulting set */
3667 for (n = 0; n < size; n++) {
3668 if (!gst_value_intersect (NULL, gst_value_array_get_value (src1, n),
3669 gst_value_array_get_value (src2, n))) {
3676 g_value_init (dest, GST_TYPE_ARRAY);
3678 for (n = 0; n < size; n++) {
3679 if (!gst_value_intersect (&val, gst_value_array_get_value (src1, n),
3680 gst_value_array_get_value (src2, n))) {
3681 g_value_unset (dest);
3684 _gst_value_array_append_and_take_value (dest, &val);
3691 gst_value_intersect_fraction_fraction_range (GValue * dest, const GValue * src1,
3692 const GValue * src2)
3696 GstValueCompareFunc compare;
3698 vals = src2->data[0].v_pointer;
3703 if ((compare = gst_value_get_compare_func (src1))) {
3704 res1 = gst_value_compare_with_func (&vals[0], src1, compare);
3705 res2 = gst_value_compare_with_func (&vals[1], src1, compare);
3707 if ((res1 == GST_VALUE_EQUAL || res1 == GST_VALUE_LESS_THAN) &&
3708 (res2 == GST_VALUE_EQUAL || res2 == GST_VALUE_GREATER_THAN)) {
3710 gst_value_init_and_copy (dest, src1);
3719 gst_value_intersect_fraction_range_fraction_range (GValue * dest,
3720 const GValue * src1, const GValue * src2)
3725 GValue *vals1, *vals2;
3726 GstValueCompareFunc compare;
3728 vals1 = src1->data[0].v_pointer;
3729 vals2 = src2->data[0].v_pointer;
3730 g_return_val_if_fail (vals1 != NULL && vals2 != NULL, FALSE);
3732 if ((compare = gst_value_get_compare_func (&vals1[0]))) {
3733 /* min = MAX (src1.start, src2.start) */
3734 res = gst_value_compare_with_func (&vals1[0], &vals2[0], compare);
3735 g_return_val_if_fail (res != GST_VALUE_UNORDERED, FALSE);
3736 if (res == GST_VALUE_LESS_THAN)
3737 min = &vals2[0]; /* Take the max of the 2 */
3741 /* max = MIN (src1.end, src2.end) */
3742 res = gst_value_compare_with_func (&vals1[1], &vals2[1], compare);
3743 g_return_val_if_fail (res != GST_VALUE_UNORDERED, FALSE);
3744 if (res == GST_VALUE_GREATER_THAN)
3745 max = &vals2[1]; /* Take the min of the 2 */
3749 res = gst_value_compare_with_func (min, max, compare);
3750 g_return_val_if_fail (res != GST_VALUE_UNORDERED, FALSE);
3751 if (res == GST_VALUE_LESS_THAN) {
3753 g_value_init (dest, GST_TYPE_FRACTION_RANGE);
3754 vals1 = dest->data[0].v_pointer;
3755 g_value_copy (min, &vals1[0]);
3756 g_value_copy (max, &vals1[1]);
3760 if (res == GST_VALUE_EQUAL) {
3762 gst_value_init_and_copy (dest, min);
3775 gst_value_subtract_int_int_range (GValue * dest, const GValue * minuend,
3776 const GValue * subtrahend)
3778 gint min = gst_value_get_int_range_min (subtrahend);
3779 gint max = gst_value_get_int_range_max (subtrahend);
3780 gint step = gst_value_get_int_range_step (subtrahend);
3781 gint val = g_value_get_int (minuend);
3783 /* subtracting a range from an int only works if the int is not in the
3785 if (val < min || val > max || val % step) {
3786 /* and the result is the int */
3788 gst_value_init_and_copy (dest, minuend);
3794 /* creates a new int range based on input values.
3797 gst_value_create_new_range (GValue * dest, gint min1, gint max1, gint min2,
3798 gint max2, gint step)
3802 GValue *pv1, *pv2; /* yeah, hungarian! */
3804 g_return_val_if_fail (step > 0, FALSE);
3805 g_return_val_if_fail (min1 % step == 0, FALSE);
3806 g_return_val_if_fail (max1 % step == 0, FALSE);
3807 g_return_val_if_fail (min2 % step == 0, FALSE);
3808 g_return_val_if_fail (max2 % step == 0, FALSE);
3810 if (min1 <= max1 && min2 <= max2) {
3813 } else if (min1 <= max1) {
3816 } else if (min2 <= max2) {
3827 g_value_init (pv1, GST_TYPE_INT_RANGE);
3828 gst_value_set_int_range_step (pv1, min1, max1, step);
3829 } else if (min1 == max1) {
3830 g_value_init (pv1, G_TYPE_INT);
3831 g_value_set_int (pv1, min1);
3834 g_value_init (pv2, GST_TYPE_INT_RANGE);
3835 gst_value_set_int_range_step (pv2, min2, max2, step);
3836 } else if (min2 == max2) {
3837 g_value_init (pv2, G_TYPE_INT);
3838 g_value_set_int (pv2, min2);
3841 if (min1 <= max1 && min2 <= max2) {
3842 gst_value_list_concat (dest, pv1, pv2);
3843 g_value_unset (pv1);
3844 g_value_unset (pv2);
3850 gst_value_subtract_int_range_int (GValue * dest, const GValue * minuend,
3851 const GValue * subtrahend)
3853 gint min = gst_value_get_int_range_min (minuend);
3854 gint max = gst_value_get_int_range_max (minuend);
3855 gint step = gst_value_get_int_range_step (minuend);
3856 gint val = g_value_get_int (subtrahend);
3858 g_return_val_if_fail (min < max, FALSE);
3860 /* value is outside of the range, return range unchanged */
3861 if (val < min || val > max || val % step) {
3863 gst_value_init_and_copy (dest, minuend);
3866 /* max must be MAXINT too as val <= max */
3867 if (val >= G_MAXINT - step + 1) {
3871 /* min must be MININT too as val >= max */
3872 if (val <= G_MININT + step - 1) {
3877 gst_value_create_new_range (dest, min, val - step, val + step, max, step);
3883 gst_value_subtract_int_range_int_range (GValue * dest, const GValue * minuend,
3884 const GValue * subtrahend)
3886 gint min1 = gst_value_get_int_range_min (minuend);
3887 gint max1 = gst_value_get_int_range_max (minuend);
3888 gint step1 = gst_value_get_int_range_step (minuend);
3889 gint min2 = gst_value_get_int_range_min (subtrahend);
3890 gint max2 = gst_value_get_int_range_max (subtrahend);
3891 gint step2 = gst_value_get_int_range_step (subtrahend);
3894 if (step1 != step2) {
3901 if (max2 >= max1 && min2 <= min1) {
3903 } else if (max2 >= max1) {
3904 return gst_value_create_new_range (dest, min1, MIN (min2 - step, max1),
3906 } else if (min2 <= min1) {
3907 return gst_value_create_new_range (dest, MAX (max2 + step, min1), max1,
3910 return gst_value_create_new_range (dest, min1, MIN (min2 - step, max1),
3911 MAX (max2 + step, min1), max1, step);
3916 gst_value_subtract_int64_int64_range (GValue * dest, const GValue * minuend,
3917 const GValue * subtrahend)
3919 gint64 min = gst_value_get_int64_range_min (subtrahend);
3920 gint64 max = gst_value_get_int64_range_max (subtrahend);
3921 gint64 step = gst_value_get_int64_range_step (subtrahend);
3922 gint64 val = g_value_get_int64 (minuend);
3924 /* subtracting a range from an int64 only works if the int64 is not in the
3926 if (val < min || val > max || val % step) {
3927 /* and the result is the int64 */
3929 gst_value_init_and_copy (dest, minuend);
3935 /* creates a new int64 range based on input values.
3938 gst_value_create_new_int64_range (GValue * dest, gint64 min1, gint64 max1,
3939 gint64 min2, gint64 max2, gint64 step)
3943 GValue *pv1, *pv2; /* yeah, hungarian! */
3945 g_return_val_if_fail (step > 0, FALSE);
3946 g_return_val_if_fail (min1 % step == 0, FALSE);
3947 g_return_val_if_fail (max1 % step == 0, FALSE);
3948 g_return_val_if_fail (min2 % step == 0, FALSE);
3949 g_return_val_if_fail (max2 % step == 0, FALSE);
3951 if (min1 <= max1 && min2 <= max2) {
3954 } else if (min1 <= max1) {
3957 } else if (min2 <= max2) {
3968 g_value_init (pv1, GST_TYPE_INT64_RANGE);
3969 gst_value_set_int64_range_step (pv1, min1, max1, step);
3970 } else if (min1 == max1) {
3971 g_value_init (pv1, G_TYPE_INT64);
3972 g_value_set_int64 (pv1, min1);
3975 g_value_init (pv2, GST_TYPE_INT64_RANGE);
3976 gst_value_set_int64_range_step (pv2, min2, max2, step);
3977 } else if (min2 == max2) {
3978 g_value_init (pv2, G_TYPE_INT64);
3979 g_value_set_int64 (pv2, min2);
3982 if (min1 <= max1 && min2 <= max2) {
3983 gst_value_list_concat (dest, pv1, pv2);
3984 g_value_unset (pv1);
3985 g_value_unset (pv2);
3991 gst_value_subtract_int64_range_int64 (GValue * dest, const GValue * minuend,
3992 const GValue * subtrahend)
3994 gint64 min = gst_value_get_int64_range_min (minuend);
3995 gint64 max = gst_value_get_int64_range_max (minuend);
3996 gint64 step = gst_value_get_int64_range_step (minuend);
3997 gint64 val = g_value_get_int64 (subtrahend);
3999 g_return_val_if_fail (min < max, FALSE);
4001 /* value is outside of the range, return range unchanged */
4002 if (val < min || val > max || val % step) {
4004 gst_value_init_and_copy (dest, minuend);
4007 /* max must be MAXINT64 too as val <= max */
4008 if (val >= G_MAXINT64 - step + 1) {
4012 /* min must be MININT64 too as val >= max */
4013 if (val <= G_MININT64 + step - 1) {
4018 gst_value_create_new_int64_range (dest, min, val - step, val + step, max,
4025 gst_value_subtract_int64_range_int64_range (GValue * dest,
4026 const GValue * minuend, const GValue * subtrahend)
4028 gint64 min1 = gst_value_get_int64_range_min (minuend);
4029 gint64 max1 = gst_value_get_int64_range_max (minuend);
4030 gint64 step1 = gst_value_get_int64_range_step (minuend);
4031 gint64 min2 = gst_value_get_int64_range_min (subtrahend);
4032 gint64 max2 = gst_value_get_int64_range_max (subtrahend);
4033 gint64 step2 = gst_value_get_int64_range_step (subtrahend);
4036 if (step1 != step2) {
4043 if (max2 >= max1 && min2 <= min1) {
4045 } else if (max2 >= max1) {
4046 return gst_value_create_new_int64_range (dest, min1, MIN (min2 - step,
4047 max1), step, 0, step);
4048 } else if (min2 <= min1) {
4049 return gst_value_create_new_int64_range (dest, MAX (max2 + step, min1),
4050 max1, step, 0, step);
4052 return gst_value_create_new_int64_range (dest, min1, MIN (min2 - step,
4053 max1), MAX (max2 + step, min1), max1, step);
4058 gst_value_subtract_double_double_range (GValue * dest, const GValue * minuend,
4059 const GValue * subtrahend)
4061 gdouble min = gst_value_get_double_range_min (subtrahend);
4062 gdouble max = gst_value_get_double_range_max (subtrahend);
4063 gdouble val = g_value_get_double (minuend);
4065 if (val < min || val > max) {
4067 gst_value_init_and_copy (dest, minuend);
4074 gst_value_subtract_double_range_double (GValue * dest, const GValue * minuend,
4075 const GValue * subtrahend)
4077 /* since we don't have open ranges, we cannot create a hole in
4078 * a double range. We return the original range */
4080 gst_value_init_and_copy (dest, minuend);
4085 gst_value_subtract_double_range_double_range (GValue * dest,
4086 const GValue * minuend, const GValue * subtrahend)
4088 /* since we don't have open ranges, we have to approximate */
4089 /* done like with ints */
4090 gdouble min1 = gst_value_get_double_range_min (minuend);
4091 gdouble max2 = gst_value_get_double_range_max (minuend);
4092 gdouble max1 = MIN (gst_value_get_double_range_min (subtrahend), max2);
4093 gdouble min2 = MAX (gst_value_get_double_range_max (subtrahend), min1);
4096 GValue *pv1, *pv2; /* yeah, hungarian! */
4098 if (min1 < max1 && min2 < max2) {
4101 } else if (min1 < max1) {
4104 } else if (min2 < max2) {
4115 g_value_init (pv1, GST_TYPE_DOUBLE_RANGE);
4116 gst_value_set_double_range (pv1, min1, max1);
4119 g_value_init (pv2, GST_TYPE_DOUBLE_RANGE);
4120 gst_value_set_double_range (pv2, min2, max2);
4123 if (min1 < max1 && min2 < max2) {
4124 gst_value_list_concat (dest, pv1, pv2);
4125 g_value_unset (pv1);
4126 g_value_unset (pv2);
4132 gst_value_subtract_from_list (GValue * dest, const GValue * minuend,
4133 const GValue * subtrahend)
4136 GValue subtraction = { 0, };
4137 gboolean ret = FALSE;
4140 ltype = gst_value_list_get_type ();
4142 size = VALUE_LIST_SIZE (minuend);
4143 for (i = 0; i < size; i++) {
4144 const GValue *cur = VALUE_LIST_GET_VALUE (minuend, i);
4146 /* quicker version when we can discard the result */
4148 if (gst_value_subtract (NULL, cur, subtrahend)) {
4155 if (gst_value_subtract (&subtraction, cur, subtrahend)) {
4157 gst_value_move (dest, &subtraction);
4159 } else if (G_VALUE_HOLDS (dest, ltype)
4160 && !G_VALUE_HOLDS (&subtraction, ltype)) {
4161 _gst_value_list_append_and_take_value (dest, &subtraction);
4165 gst_value_move (&temp, dest);
4166 gst_value_list_concat (dest, &temp, &subtraction);
4167 g_value_unset (&temp);
4168 g_value_unset (&subtraction);
4176 gst_value_subtract_list (GValue * dest, const GValue * minuend,
4177 const GValue * subtrahend)
4180 GValue data[2] = { {0,}, {0,} };
4181 GValue *subtraction = &data[0], *result = &data[1];
4183 gst_value_init_and_copy (result, minuend);
4184 size = VALUE_LIST_SIZE (subtrahend);
4185 for (i = 0; i < size; i++) {
4186 const GValue *cur = VALUE_LIST_GET_VALUE (subtrahend, i);
4188 if (gst_value_subtract (subtraction, result, cur)) {
4189 GValue *temp = result;
4191 result = subtraction;
4193 g_value_unset (subtraction);
4195 g_value_unset (result);
4200 gst_value_move (dest, result);
4202 g_value_unset (result);
4208 gst_value_subtract_fraction_fraction_range (GValue * dest,
4209 const GValue * minuend, const GValue * subtrahend)
4211 const GValue *min = gst_value_get_fraction_range_min (subtrahend);
4212 const GValue *max = gst_value_get_fraction_range_max (subtrahend);
4213 GstValueCompareFunc compare;
4215 if ((compare = gst_value_get_compare_func (minuend))) {
4216 /* subtracting a range from an fraction only works if the fraction
4217 * is not in the range */
4218 if (gst_value_compare_with_func (minuend, min, compare) ==
4219 GST_VALUE_LESS_THAN ||
4220 gst_value_compare_with_func (minuend, max, compare) ==
4221 GST_VALUE_GREATER_THAN) {
4222 /* and the result is the value */
4224 gst_value_init_and_copy (dest, minuend);
4232 gst_value_subtract_fraction_range_fraction (GValue * dest,
4233 const GValue * minuend, const GValue * subtrahend)
4235 /* since we don't have open ranges, we cannot create a hole in
4236 * a range. We return the original range */
4238 gst_value_init_and_copy (dest, minuend);
4243 gst_value_subtract_fraction_range_fraction_range (GValue * dest,
4244 const GValue * minuend, const GValue * subtrahend)
4246 /* since we don't have open ranges, we have to approximate */
4247 /* done like with ints and doubles. Creates a list of 2 fraction ranges */
4248 const GValue *min1 = gst_value_get_fraction_range_min (minuend);
4249 const GValue *max2 = gst_value_get_fraction_range_max (minuend);
4250 const GValue *max1 = gst_value_get_fraction_range_min (subtrahend);
4251 const GValue *min2 = gst_value_get_fraction_range_max (subtrahend);
4255 GValue *pv1, *pv2; /* yeah, hungarian! */
4256 GstValueCompareFunc compare;
4258 g_return_val_if_fail (min1 != NULL && max1 != NULL, FALSE);
4259 g_return_val_if_fail (min2 != NULL && max2 != NULL, FALSE);
4261 compare = gst_value_get_compare_func (min1);
4262 g_return_val_if_fail (compare, FALSE);
4264 cmp1 = gst_value_compare_with_func (max2, max1, compare);
4265 g_return_val_if_fail (cmp1 != GST_VALUE_UNORDERED, FALSE);
4266 if (cmp1 == GST_VALUE_LESS_THAN)
4268 cmp1 = gst_value_compare_with_func (min1, min2, compare);
4269 g_return_val_if_fail (cmp1 != GST_VALUE_UNORDERED, FALSE);
4270 if (cmp1 == GST_VALUE_GREATER_THAN)
4273 cmp1 = gst_value_compare_with_func (min1, max1, compare);
4274 cmp2 = gst_value_compare_with_func (min2, max2, compare);
4276 if (cmp1 == GST_VALUE_LESS_THAN && cmp2 == GST_VALUE_LESS_THAN) {
4279 } else if (cmp1 == GST_VALUE_LESS_THAN) {
4282 } else if (cmp2 == GST_VALUE_LESS_THAN) {
4292 if (cmp1 == GST_VALUE_LESS_THAN) {
4293 g_value_init (pv1, GST_TYPE_FRACTION_RANGE);
4294 gst_value_set_fraction_range (pv1, min1, max1);
4296 if (cmp2 == GST_VALUE_LESS_THAN) {
4297 g_value_init (pv2, GST_TYPE_FRACTION_RANGE);
4298 gst_value_set_fraction_range (pv2, min2, max2);
4301 if (cmp1 == GST_VALUE_LESS_THAN && cmp2 == GST_VALUE_LESS_THAN) {
4302 gst_value_list_concat (dest, pv1, pv2);
4303 g_value_unset (pv1);
4304 g_value_unset (pv2);
4315 * gst_value_get_compare_func:
4316 * @value1: a value to get the compare function for
4318 * Determines the compare function to be used with values of the same type as
4319 * @value1. The function can be given to gst_value_compare_with_func().
4321 * Returns: A #GstValueCompareFunc value
4323 static GstValueCompareFunc
4324 gst_value_get_compare_func (const GValue * value1)
4326 GstValueTable *table, *best = NULL;
4330 type1 = G_VALUE_TYPE (value1);
4332 /* this is a fast check */
4333 best = gst_value_hash_lookup_type (type1);
4336 if (G_UNLIKELY (!best || !best->compare)) {
4337 guint len = gst_value_table->len;
4340 for (i = 0; i < len; i++) {
4341 table = &g_array_index (gst_value_table, GstValueTable, i);
4342 if (table->compare && g_type_is_a (type1, table->type)) {
4343 if (!best || g_type_is_a (table->type, best->type))
4348 if (G_LIKELY (best))
4349 return best->compare;
4355 * gst_value_can_compare:
4356 * @value1: a value to compare
4357 * @value2: another value to compare
4359 * Determines if @value1 and @value2 can be compared.
4361 * Returns: TRUE if the values can be compared
4364 gst_value_can_compare (const GValue * value1, const GValue * value2)
4366 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
4367 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
4369 if (G_VALUE_TYPE (value1) != G_VALUE_TYPE (value2))
4372 return gst_value_get_compare_func (value1) != NULL;
4376 gst_value_list_equals_range (const GValue * list, const GValue * value)
4378 const GValue *first;
4381 g_return_val_if_fail (G_IS_VALUE (list), FALSE);
4382 g_return_val_if_fail (G_IS_VALUE (value), FALSE);
4383 g_return_val_if_fail (GST_VALUE_HOLDS_LIST (list), FALSE);
4385 /* TODO: compare against an empty list ? No type though... */
4386 list_size = VALUE_LIST_SIZE (list);
4390 /* compare the basic types - they have to match */
4391 first = VALUE_LIST_GET_VALUE (list, 0);
4392 #define CHECK_TYPES(type,prefix) \
4393 (prefix##_VALUE_HOLDS_##type(first) && GST_VALUE_HOLDS_##type##_RANGE (value))
4394 if (CHECK_TYPES (INT, G)) {
4395 const gint rmin = gst_value_get_int_range_min (value);
4396 const gint rmax = gst_value_get_int_range_max (value);
4397 const gint rstep = gst_value_get_int_range_step (value);
4398 /* note: this will overflow for min 0 and max INT_MAX, but this
4399 would only be equal to a list of INT_MAX elements, which seems
4401 if (list_size != rmax / rstep - rmin / rstep + 1)
4403 for (n = 0; n < list_size; ++n) {
4404 gint v = g_value_get_int (VALUE_LIST_GET_VALUE (list, n));
4405 if (v < rmin || v > rmax || v % rstep) {
4410 } else if (CHECK_TYPES (INT64, G)) {
4411 const gint64 rmin = gst_value_get_int64_range_min (value);
4412 const gint64 rmax = gst_value_get_int64_range_max (value);
4413 const gint64 rstep = gst_value_get_int64_range_step (value);
4414 GST_DEBUG ("List/range of int64s");
4415 if (list_size != rmax / rstep - rmin / rstep + 1)
4417 for (n = 0; n < list_size; ++n) {
4418 gint64 v = g_value_get_int64 (VALUE_LIST_GET_VALUE (list, n));
4419 if (v < rmin || v > rmax || v % rstep)
4426 /* other combinations don't make sense for equality */
4431 * gst_value_compare:
4432 * @value1: a value to compare
4433 * @value2: another value to compare
4435 * Compares @value1 and @value2. If @value1 and @value2 cannot be
4436 * compared, the function returns GST_VALUE_UNORDERED. Otherwise,
4437 * if @value1 is greater than @value2, GST_VALUE_GREATER_THAN is returned.
4438 * If @value1 is less than @value2, GST_VALUE_LESS_THAN is returned.
4439 * If the values are equal, GST_VALUE_EQUAL is returned.
4441 * Returns: comparison result
4444 gst_value_compare (const GValue * value1, const GValue * value2)
4446 GstValueCompareFunc compare;
4449 g_return_val_if_fail (G_IS_VALUE (value1), GST_VALUE_LESS_THAN);
4450 g_return_val_if_fail (G_IS_VALUE (value2), GST_VALUE_GREATER_THAN);
4452 /* Special cases: lists and scalar values ("{ 1 }" and "1" are equal),
4453 as well as lists and ranges ("{ 1, 2 }" and "[ 1, 2 ]" are equal) */
4454 ltype = gst_value_list_get_type ();
4455 if (G_VALUE_HOLDS (value1, ltype) && !G_VALUE_HOLDS (value2, ltype)) {
4457 if (gst_value_list_equals_range (value1, value2)) {
4458 return GST_VALUE_EQUAL;
4459 } else if (gst_value_list_get_size (value1) == 1) {
4462 elt = gst_value_list_get_value (value1, 0);
4463 return gst_value_compare (elt, value2);
4465 } else if (G_VALUE_HOLDS (value2, ltype) && !G_VALUE_HOLDS (value1, ltype)) {
4466 if (gst_value_list_equals_range (value2, value1)) {
4467 return GST_VALUE_EQUAL;
4468 } else if (gst_value_list_get_size (value2) == 1) {
4471 elt = gst_value_list_get_value (value2, 0);
4472 return gst_value_compare (elt, value1);
4476 if (G_VALUE_TYPE (value1) != G_VALUE_TYPE (value2))
4477 return GST_VALUE_UNORDERED;
4479 compare = gst_value_get_compare_func (value1);
4481 return compare (value1, value2);
4484 g_critical ("unable to compare values of type %s\n",
4485 g_type_name (G_VALUE_TYPE (value1)));
4486 return GST_VALUE_UNORDERED;
4490 * gst_value_compare_with_func:
4491 * @value1: a value to compare
4492 * @value2: another value to compare
4493 * @compare: compare function
4495 * Compares @value1 and @value2 using the @compare function. Works like
4496 * gst_value_compare() but allows to save time determining the compare function
4499 * Returns: comparison result
4502 gst_value_compare_with_func (const GValue * value1, const GValue * value2,
4503 GstValueCompareFunc compare)
4507 if (G_VALUE_TYPE (value1) != G_VALUE_TYPE (value2))
4508 return GST_VALUE_UNORDERED;
4510 return compare (value1, value2);
4516 * gst_value_can_union:
4517 * @value1: a value to union
4518 * @value2: another value to union
4520 * Determines if @value1 and @value2 can be non-trivially unioned.
4521 * Any two values can be trivially unioned by adding both of them
4522 * to a GstValueList. However, certain types have the possibility
4523 * to be unioned in a simpler way. For example, an integer range
4524 * and an integer can be unioned if the integer is a subset of the
4525 * integer range. If there is the possibility that two values can
4526 * be unioned, this function returns TRUE.
4528 * Returns: TRUE if there is a function allowing the two values to
4532 gst_value_can_union (const GValue * value1, const GValue * value2)
4534 GstValueUnionInfo *union_info;
4537 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
4538 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
4540 len = gst_value_union_funcs->len;
4542 for (i = 0; i < len; i++) {
4543 union_info = &g_array_index (gst_value_union_funcs, GstValueUnionInfo, i);
4544 if (union_info->type1 == G_VALUE_TYPE (value1) &&
4545 union_info->type2 == G_VALUE_TYPE (value2))
4547 if (union_info->type1 == G_VALUE_TYPE (value2) &&
4548 union_info->type2 == G_VALUE_TYPE (value1))
4557 * @dest: (out caller-allocates): the destination value
4558 * @value1: a value to union
4559 * @value2: another value to union
4561 * Creates a GValue corresponding to the union of @value1 and @value2.
4563 * Returns: TRUE if the union suceeded.
4566 gst_value_union (GValue * dest, const GValue * value1, const GValue * value2)
4568 const GstValueUnionInfo *union_info;
4572 g_return_val_if_fail (dest != NULL, FALSE);
4573 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
4574 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
4575 g_return_val_if_fail (gst_value_list_or_array_are_compatible (value1, value2),
4578 len = gst_value_union_funcs->len;
4579 type1 = G_VALUE_TYPE (value1);
4580 type2 = G_VALUE_TYPE (value2);
4582 for (i = 0; i < len; i++) {
4583 union_info = &g_array_index (gst_value_union_funcs, GstValueUnionInfo, i);
4584 if (union_info->type1 == type1 && union_info->type2 == type2) {
4585 return union_info->func (dest, value1, value2);
4587 if (union_info->type1 == type2 && union_info->type2 == type1) {
4588 return union_info->func (dest, value2, value1);
4592 gst_value_list_concat (dest, value1, value2);
4596 /* gst_value_register_union_func: (skip)
4597 * @type1: a type to union
4598 * @type2: another type to union
4599 * @func: a function that implements creating a union between the two types
4601 * Registers a union function that can create a union between #GValue items
4602 * of the type @type1 and @type2.
4604 * Union functions should be registered at startup before any pipelines are
4605 * started, as gst_value_register_union_func() is not thread-safe and cannot
4606 * be used at the same time as gst_value_union() or gst_value_can_union().
4609 gst_value_register_union_func (GType type1, GType type2, GstValueUnionFunc func)
4611 GstValueUnionInfo union_info;
4613 union_info.type1 = type1;
4614 union_info.type2 = type2;
4615 union_info.func = func;
4617 g_array_append_val (gst_value_union_funcs, union_info);
4623 * gst_value_can_intersect:
4624 * @value1: a value to intersect
4625 * @value2: another value to intersect
4627 * Determines if intersecting two values will produce a valid result.
4628 * Two values will produce a valid intersection if they have the same
4629 * type, or if there is a method (registered by
4630 * gst_value_register_intersect_func()) to calculate the intersection.
4632 * Returns: TRUE if the values can intersect
4635 gst_value_can_intersect (const GValue * value1, const GValue * value2)
4637 GstValueIntersectInfo *intersect_info;
4639 GType ltype, type1, type2;
4641 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
4642 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
4644 ltype = gst_value_list_get_type ();
4647 if (G_VALUE_HOLDS (value1, ltype) || G_VALUE_HOLDS (value2, ltype))
4650 type1 = G_VALUE_TYPE (value1);
4651 type2 = G_VALUE_TYPE (value2);
4653 /* practically all GstValue types have a compare function (_can_compare=TRUE)
4654 * GstStructure and GstCaps have npot, but are intersectable */
4658 /* check registered intersect functions */
4659 len = gst_value_intersect_funcs->len;
4660 for (i = 0; i < len; i++) {
4661 intersect_info = &g_array_index (gst_value_intersect_funcs,
4662 GstValueIntersectInfo, i);
4663 if ((intersect_info->type1 == type1 && intersect_info->type2 == type2) ||
4664 (intersect_info->type1 == type2 && intersect_info->type2 == type1))
4668 return gst_value_can_compare (value1, value2);
4672 * gst_value_intersect:
4673 * @dest: (out caller-allocates) (transfer full): a uninitialized #GValue that will hold the calculated
4674 * intersection value. May be NULL if the resulting set if not needed.
4675 * @value1: a value to intersect
4676 * @value2: another value to intersect
4678 * Calculates the intersection of two values. If the values have
4679 * a non-empty intersection, the value representing the intersection
4680 * is placed in @dest, unless NULL. If the intersection is non-empty,
4681 * @dest is not modified.
4683 * Returns: TRUE if the intersection is non-empty
4686 gst_value_intersect (GValue * dest, const GValue * value1,
4687 const GValue * value2)
4689 GstValueIntersectInfo *intersect_info;
4691 GType ltype, type1, type2;
4693 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
4694 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
4696 ltype = gst_value_list_get_type ();
4698 /* special cases first */
4699 if (G_VALUE_HOLDS (value1, ltype))
4700 return gst_value_intersect_list (dest, value1, value2);
4701 if (G_VALUE_HOLDS (value2, ltype))
4702 return gst_value_intersect_list (dest, value2, value1);
4704 if (gst_value_compare (value1, value2) == GST_VALUE_EQUAL) {
4706 gst_value_init_and_copy (dest, value1);
4710 type1 = G_VALUE_TYPE (value1);
4711 type2 = G_VALUE_TYPE (value2);
4713 len = gst_value_intersect_funcs->len;
4714 for (i = 0; i < len; i++) {
4715 intersect_info = &g_array_index (gst_value_intersect_funcs,
4716 GstValueIntersectInfo, i);
4717 if (intersect_info->type1 == type1 && intersect_info->type2 == type2) {
4718 return intersect_info->func (dest, value1, value2);
4720 if (intersect_info->type1 == type2 && intersect_info->type2 == type1) {
4721 return intersect_info->func (dest, value2, value1);
4729 /* gst_value_register_intersect_func: (skip)
4730 * @type1: the first type to intersect
4731 * @type2: the second type to intersect
4732 * @func: the intersection function
4734 * Registers a function that is called to calculate the intersection
4735 * of the values having the types @type1 and @type2.
4737 * Intersect functions should be registered at startup before any pipelines are
4738 * started, as gst_value_register_intersect_func() is not thread-safe and
4739 * cannot be used at the same time as gst_value_intersect() or
4740 * gst_value_can_intersect().
4743 gst_value_register_intersect_func (GType type1, GType type2,
4744 GstValueIntersectFunc func)
4746 GstValueIntersectInfo intersect_info;
4748 intersect_info.type1 = type1;
4749 intersect_info.type2 = type2;
4750 intersect_info.func = func;
4752 g_array_append_val (gst_value_intersect_funcs, intersect_info);
4759 * gst_value_subtract:
4760 * @dest: (out caller-allocates): the destination value for the result if the
4761 * subtraction is not empty. May be NULL, in which case the resulting set
4762 * will not be computed, which can give a fair speedup.
4763 * @minuend: the value to subtract from
4764 * @subtrahend: the value to subtract
4766 * Subtracts @subtrahend from @minuend and stores the result in @dest.
4767 * Note that this means subtraction as in sets, not as in mathematics.
4769 * Returns: %TRUE if the subtraction is not empty
4772 gst_value_subtract (GValue * dest, const GValue * minuend,
4773 const GValue * subtrahend)
4775 GstValueSubtractInfo *info;
4777 GType ltype, mtype, stype;
4779 g_return_val_if_fail (G_IS_VALUE (minuend), FALSE);
4780 g_return_val_if_fail (G_IS_VALUE (subtrahend), FALSE);
4782 ltype = gst_value_list_get_type ();
4784 /* special cases first */
4785 if (G_VALUE_HOLDS (minuend, ltype))
4786 return gst_value_subtract_from_list (dest, minuend, subtrahend);
4787 if (G_VALUE_HOLDS (subtrahend, ltype))
4788 return gst_value_subtract_list (dest, minuend, subtrahend);
4790 mtype = G_VALUE_TYPE (minuend);
4791 stype = G_VALUE_TYPE (subtrahend);
4793 len = gst_value_subtract_funcs->len;
4794 for (i = 0; i < len; i++) {
4795 info = &g_array_index (gst_value_subtract_funcs, GstValueSubtractInfo, i);
4796 if (info->minuend == mtype && info->subtrahend == stype) {
4797 return info->func (dest, minuend, subtrahend);
4801 if (gst_value_compare (minuend, subtrahend) != GST_VALUE_EQUAL) {
4803 gst_value_init_and_copy (dest, minuend);
4812 gst_value_subtract (GValue * dest, const GValue * minuend,
4813 const GValue * subtrahend)
4815 gboolean ret = gst_value_subtract2 (dest, minuend, subtrahend);
4817 g_printerr ("\"%s\" - \"%s\" = \"%s\"\n", gst_value_serialize (minuend),
4818 gst_value_serialize (subtrahend),
4819 ret ? gst_value_serialize (dest) : "---");
4825 * gst_value_can_subtract:
4826 * @minuend: the value to subtract from
4827 * @subtrahend: the value to subtract
4829 * Checks if it's possible to subtract @subtrahend from @minuend.
4831 * Returns: TRUE if a subtraction is possible
4834 gst_value_can_subtract (const GValue * minuend, const GValue * subtrahend)
4836 GstValueSubtractInfo *info;
4838 GType ltype, mtype, stype;
4840 g_return_val_if_fail (G_IS_VALUE (minuend), FALSE);
4841 g_return_val_if_fail (G_IS_VALUE (subtrahend), FALSE);
4843 ltype = gst_value_list_get_type ();
4846 if (G_VALUE_HOLDS (minuend, ltype) || G_VALUE_HOLDS (subtrahend, ltype))
4849 mtype = G_VALUE_TYPE (minuend);
4850 stype = G_VALUE_TYPE (subtrahend);
4852 len = gst_value_subtract_funcs->len;
4853 for (i = 0; i < len; i++) {
4854 info = &g_array_index (gst_value_subtract_funcs, GstValueSubtractInfo, i);
4855 if (info->minuend == mtype && info->subtrahend == stype)
4859 return gst_value_can_compare (minuend, subtrahend);
4862 /* gst_value_register_subtract_func: (skip)
4863 * @minuend_type: type of the minuend
4864 * @subtrahend_type: type of the subtrahend
4865 * @func: function to use
4867 * Registers @func as a function capable of subtracting the values of
4868 * @subtrahend_type from values of @minuend_type.
4870 * Subtract functions should be registered at startup before any pipelines are
4871 * started, as gst_value_register_subtract_func() is not thread-safe and
4872 * cannot be used at the same time as gst_value_subtract().
4875 gst_value_register_subtract_func (GType minuend_type, GType subtrahend_type,
4876 GstValueSubtractFunc func)
4878 GstValueSubtractInfo info;
4880 g_return_if_fail (!gst_type_is_fixed (minuend_type)
4881 || !gst_type_is_fixed (subtrahend_type));
4883 info.minuend = minuend_type;
4884 info.subtrahend = subtrahend_type;
4887 g_array_append_val (gst_value_subtract_funcs, info);
4891 * gst_value_register:
4892 * @table: structure containing functions to register
4894 * Registers functions to perform calculations on #GValue items of a given
4895 * type. Each type can only be added once.
4898 gst_value_register (const GstValueTable * table)
4900 GstValueTable *found;
4902 g_return_if_fail (table != NULL);
4904 g_array_append_val (gst_value_table, *table);
4906 found = gst_value_hash_lookup_type (table->type);
4908 g_warning ("adding type %s multiple times", g_type_name (table->type));
4910 /* FIXME: we're not really doing the const justice, we assume the table is
4912 gst_value_hash_add_type (table->type, table);
4916 * gst_value_init_and_copy:
4917 * @dest: (out caller-allocates): the target value
4918 * @src: the source value
4920 * Initialises the target value to be of the same type as source and then copies
4921 * the contents from source to target.
4924 gst_value_init_and_copy (GValue * dest, const GValue * src)
4926 g_return_if_fail (G_IS_VALUE (src));
4927 g_return_if_fail (dest != NULL);
4929 g_value_init (dest, G_VALUE_TYPE (src));
4930 g_value_copy (src, dest);
4933 /* move src into dest and clear src */
4935 gst_value_move (GValue * dest, GValue * src)
4937 g_assert (G_IS_VALUE (src));
4938 g_assert (dest != NULL);
4941 memset (src, 0, sizeof (GValue));
4945 * gst_value_serialize:
4946 * @value: a #GValue to serialize
4948 * tries to transform the given @value into a string representation that allows
4949 * getting back this string later on using gst_value_deserialize().
4951 * Free-function: g_free
4953 * Returns: (transfer full): the serialization for @value or NULL if none exists
4956 gst_value_serialize (const GValue * value)
4959 GValue s_val = { 0 };
4960 GstValueTable *table, *best;
4964 g_return_val_if_fail (G_IS_VALUE (value), NULL);
4966 type = G_VALUE_TYPE (value);
4968 best = gst_value_hash_lookup_type (type);
4970 if (G_UNLIKELY (!best || !best->serialize)) {
4971 len = gst_value_table->len;
4973 for (i = 0; i < len; i++) {
4974 table = &g_array_index (gst_value_table, GstValueTable, i);
4975 if (table->serialize && g_type_is_a (type, table->type)) {
4976 if (!best || g_type_is_a (table->type, best->type))
4981 if (G_LIKELY (best))
4982 return best->serialize (value);
4984 g_value_init (&s_val, G_TYPE_STRING);
4985 if (g_value_transform (value, &s_val)) {
4986 s = gst_string_wrap (g_value_get_string (&s_val));
4990 g_value_unset (&s_val);
4996 * gst_value_deserialize:
4997 * @dest: (out caller-allocates): #GValue to fill with contents of
4999 * @src: string to deserialize
5001 * Tries to deserialize a string into the type specified by the given GValue.
5002 * If the operation succeeds, TRUE is returned, FALSE otherwise.
5004 * Returns: TRUE on success
5007 gst_value_deserialize (GValue * dest, const gchar * src)
5009 GstValueTable *table, *best;
5013 g_return_val_if_fail (src != NULL, FALSE);
5014 g_return_val_if_fail (G_IS_VALUE (dest), FALSE);
5016 type = G_VALUE_TYPE (dest);
5018 best = gst_value_hash_lookup_type (type);
5019 if (G_UNLIKELY (!best || !best->deserialize)) {
5020 len = gst_value_table->len;
5022 for (i = 0; i < len; i++) {
5023 table = &g_array_index (gst_value_table, GstValueTable, i);
5024 if (table->deserialize && g_type_is_a (type, table->type)) {
5025 if (!best || g_type_is_a (table->type, best->type))
5030 if (G_LIKELY (best))
5031 return best->deserialize (dest, src);
5037 * gst_value_is_fixed:
5038 * @value: the #GValue to check
5040 * Tests if the given GValue, if available in a GstStructure (or any other
5041 * container) contains a "fixed" (which means: one value) or an "unfixed"
5042 * (which means: multiple possible values, such as data lists or data
5045 * Returns: true if the value is "fixed".
5049 gst_value_is_fixed (const GValue * value)
5053 g_return_val_if_fail (G_IS_VALUE (value), FALSE);
5055 type = G_VALUE_TYPE (value);
5057 /* the most common types are just basic plain glib types */
5058 if (type <= G_TYPE_MAKE_FUNDAMENTAL (G_TYPE_RESERVED_GLIB_LAST)) {
5062 if (type == GST_TYPE_ARRAY) {
5066 /* check recursively */
5067 size = gst_value_array_get_size (value);
5068 for (n = 0; n < size; n++) {
5069 kid = gst_value_array_get_value (value, n);
5070 if (!gst_value_is_fixed (kid))
5075 return gst_type_is_fixed (type);
5080 * @dest: the #GValue destination
5081 * @src: the #GValue to fixate
5083 * Fixate @src into a new value @dest.
5084 * For ranges, the first element is taken. For lists and arrays, the
5085 * first item is fixated and returned.
5086 * If @src is already fixed, this function returns FALSE.
5088 * Returns: true if @dest contains a fixated version of @src.
5091 gst_value_fixate (GValue * dest, const GValue * src)
5093 g_return_val_if_fail (G_IS_VALUE (src), FALSE);
5094 g_return_val_if_fail (dest != NULL, FALSE);
5096 if (G_VALUE_TYPE (src) == GST_TYPE_INT_RANGE) {
5097 g_value_init (dest, G_TYPE_INT);
5098 g_value_set_int (dest, gst_value_get_int_range_min (src));
5099 } else if (G_VALUE_TYPE (src) == GST_TYPE_DOUBLE_RANGE) {
5100 g_value_init (dest, G_TYPE_DOUBLE);
5101 g_value_set_double (dest, gst_value_get_double_range_min (src));
5102 } else if (G_VALUE_TYPE (src) == GST_TYPE_FRACTION_RANGE) {
5103 gst_value_init_and_copy (dest, gst_value_get_fraction_range_min (src));
5104 } else if (G_VALUE_TYPE (src) == GST_TYPE_LIST) {
5105 GValue temp = { 0 };
5107 /* list could be empty */
5108 if (gst_value_list_get_size (src) <= 0)
5111 gst_value_init_and_copy (&temp, gst_value_list_get_value (src, 0));
5113 if (!gst_value_fixate (dest, &temp)) {
5114 gst_value_move (dest, &temp);
5116 g_value_unset (&temp);
5118 } else if (G_VALUE_TYPE (src) == GST_TYPE_ARRAY) {
5119 gboolean res = FALSE;
5122 len = gst_value_array_get_size (src);
5123 g_value_init (dest, GST_TYPE_ARRAY);
5124 for (n = 0; n < len; n++) {
5126 const GValue *orig_kid = gst_value_array_get_value (src, n);
5128 if (!gst_value_fixate (&kid, orig_kid))
5129 gst_value_init_and_copy (&kid, orig_kid);
5132 _gst_value_array_append_and_take_value (dest, &kid);
5136 g_value_unset (dest);
5150 /* helper functions */
5152 gst_value_init_fraction (GValue * value)
5154 value->data[0].v_int = 0;
5155 value->data[1].v_int = 1;
5159 gst_value_copy_fraction (const GValue * src_value, GValue * dest_value)
5161 dest_value->data[0].v_int = src_value->data[0].v_int;
5162 dest_value->data[1].v_int = src_value->data[1].v_int;
5166 gst_value_collect_fraction (GValue * value, guint n_collect_values,
5167 GTypeCValue * collect_values, guint collect_flags)
5169 if (n_collect_values != 2)
5170 return g_strdup_printf ("not enough value locations for `%s' passed",
5171 G_VALUE_TYPE_NAME (value));
5172 if (collect_values[1].v_int == 0)
5173 return g_strdup_printf ("passed '0' as denominator for `%s'",
5174 G_VALUE_TYPE_NAME (value));
5175 if (collect_values[0].v_int < -G_MAXINT)
5178 ("passed value smaller than -G_MAXINT as numerator for `%s'",
5179 G_VALUE_TYPE_NAME (value));
5180 if (collect_values[1].v_int < -G_MAXINT)
5183 ("passed value smaller than -G_MAXINT as denominator for `%s'",
5184 G_VALUE_TYPE_NAME (value));
5186 gst_value_set_fraction (value,
5187 collect_values[0].v_int, collect_values[1].v_int);
5193 gst_value_lcopy_fraction (const GValue * value, guint n_collect_values,
5194 GTypeCValue * collect_values, guint collect_flags)
5196 gint *numerator = collect_values[0].v_pointer;
5197 gint *denominator = collect_values[1].v_pointer;
5200 return g_strdup_printf ("numerator for `%s' passed as NULL",
5201 G_VALUE_TYPE_NAME (value));
5203 return g_strdup_printf ("denominator for `%s' passed as NULL",
5204 G_VALUE_TYPE_NAME (value));
5206 *numerator = value->data[0].v_int;
5207 *denominator = value->data[1].v_int;
5213 * gst_value_set_fraction:
5214 * @value: a GValue initialized to #GST_TYPE_FRACTION
5215 * @numerator: the numerator of the fraction
5216 * @denominator: the denominator of the fraction
5218 * Sets @value to the fraction specified by @numerator over @denominator.
5219 * The fraction gets reduced to the smallest numerator and denominator,
5220 * and if necessary the sign is moved to the numerator.
5223 gst_value_set_fraction (GValue * value, gint numerator, gint denominator)
5227 g_return_if_fail (GST_VALUE_HOLDS_FRACTION (value));
5228 g_return_if_fail (denominator != 0);
5229 g_return_if_fail (denominator >= -G_MAXINT);
5230 g_return_if_fail (numerator >= -G_MAXINT);
5232 /* normalize sign */
5233 if (denominator < 0) {
5234 numerator = -numerator;
5235 denominator = -denominator;
5238 /* check for reduction */
5239 gcd = gst_util_greatest_common_divisor (numerator, denominator);
5245 g_assert (denominator > 0);
5247 value->data[0].v_int = numerator;
5248 value->data[1].v_int = denominator;
5252 * gst_value_get_fraction_numerator:
5253 * @value: a GValue initialized to #GST_TYPE_FRACTION
5255 * Gets the numerator of the fraction specified by @value.
5257 * Returns: the numerator of the fraction.
5260 gst_value_get_fraction_numerator (const GValue * value)
5262 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (value), 0);
5264 return value->data[0].v_int;
5268 * gst_value_get_fraction_denominator:
5269 * @value: a GValue initialized to #GST_TYPE_FRACTION
5271 * Gets the denominator of the fraction specified by @value.
5273 * Returns: the denominator of the fraction.
5276 gst_value_get_fraction_denominator (const GValue * value)
5278 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (value), 1);
5280 return value->data[1].v_int;
5284 * gst_value_fraction_multiply:
5285 * @product: a GValue initialized to #GST_TYPE_FRACTION
5286 * @factor1: a GValue initialized to #GST_TYPE_FRACTION
5287 * @factor2: a GValue initialized to #GST_TYPE_FRACTION
5289 * Multiplies the two #GValue items containing a #GST_TYPE_FRACTION and sets
5290 * @product to the product of the two fractions.
5292 * Returns: FALSE in case of an error (like integer overflow), TRUE otherwise.
5295 gst_value_fraction_multiply (GValue * product, const GValue * factor1,
5296 const GValue * factor2)
5298 gint n1, n2, d1, d2;
5301 g_return_val_if_fail (product != NULL, FALSE);
5302 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (factor1), FALSE);
5303 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (factor2), FALSE);
5305 n1 = factor1->data[0].v_int;
5306 n2 = factor2->data[0].v_int;
5307 d1 = factor1->data[1].v_int;
5308 d2 = factor2->data[1].v_int;
5310 if (!gst_util_fraction_multiply (n1, d1, n2, d2, &res_n, &res_d))
5313 gst_value_set_fraction (product, res_n, res_d);
5319 * gst_value_fraction_subtract:
5320 * @dest: a GValue initialized to #GST_TYPE_FRACTION
5321 * @minuend: a GValue initialized to #GST_TYPE_FRACTION
5322 * @subtrahend: a GValue initialized to #GST_TYPE_FRACTION
5324 * Subtracts the @subtrahend from the @minuend and sets @dest to the result.
5326 * Returns: FALSE in case of an error (like integer overflow), TRUE otherwise.
5329 gst_value_fraction_subtract (GValue * dest,
5330 const GValue * minuend, const GValue * subtrahend)
5332 gint n1, n2, d1, d2;
5335 g_return_val_if_fail (dest != NULL, FALSE);
5336 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (minuend), FALSE);
5337 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (subtrahend), FALSE);
5339 n1 = minuend->data[0].v_int;
5340 n2 = subtrahend->data[0].v_int;
5341 d1 = minuend->data[1].v_int;
5342 d2 = subtrahend->data[1].v_int;
5344 if (!gst_util_fraction_add (n1, d1, -n2, d2, &res_n, &res_d))
5346 gst_value_set_fraction (dest, res_n, res_d);
5352 gst_value_serialize_fraction (const GValue * value)
5354 gint32 numerator = value->data[0].v_int;
5355 gint32 denominator = value->data[1].v_int;
5356 gboolean positive = TRUE;
5358 /* get the sign and make components absolute */
5359 if (numerator < 0) {
5360 numerator = -numerator;
5361 positive = !positive;
5363 if (denominator < 0) {
5364 denominator = -denominator;
5365 positive = !positive;
5368 return g_strdup_printf ("%s%d/%d",
5369 positive ? "" : "-", numerator, denominator);
5373 gst_value_deserialize_fraction (GValue * dest, const gchar * s)
5378 if (G_UNLIKELY (s == NULL))
5381 if (G_UNLIKELY (dest == NULL || !GST_VALUE_HOLDS_FRACTION (dest)))
5384 if (sscanf (s, "%d/%d%n", &num, &den, &num_chars) >= 2) {
5385 if (s[num_chars] != 0)
5390 gst_value_set_fraction (dest, num, den);
5392 } else if (g_ascii_strcasecmp (s, "1/max") == 0) {
5393 gst_value_set_fraction (dest, 1, G_MAXINT);
5395 } else if (sscanf (s, "%d%n", &num, &num_chars) >= 1) {
5396 if (s[num_chars] != 0)
5398 gst_value_set_fraction (dest, num, 1);
5400 } else if (g_ascii_strcasecmp (s, "min") == 0) {
5401 gst_value_set_fraction (dest, -G_MAXINT, 1);
5403 } else if (g_ascii_strcasecmp (s, "max") == 0) {
5404 gst_value_set_fraction (dest, G_MAXINT, 1);
5412 gst_value_transform_fraction_string (const GValue * src_value,
5413 GValue * dest_value)
5415 dest_value->data[0].v_pointer = gst_value_serialize_fraction (src_value);
5419 gst_value_transform_string_fraction (const GValue * src_value,
5420 GValue * dest_value)
5422 if (!gst_value_deserialize_fraction (dest_value,
5423 src_value->data[0].v_pointer))
5424 /* If the deserialize fails, ensure we leave the fraction in a
5425 * valid, if incorrect, state */
5426 gst_value_set_fraction (dest_value, 0, 1);
5430 gst_value_transform_double_fraction (const GValue * src_value,
5431 GValue * dest_value)
5433 gdouble src = g_value_get_double (src_value);
5436 gst_util_double_to_fraction (src, &n, &d);
5437 gst_value_set_fraction (dest_value, n, d);
5441 gst_value_transform_float_fraction (const GValue * src_value,
5442 GValue * dest_value)
5444 gfloat src = g_value_get_float (src_value);
5447 gst_util_double_to_fraction (src, &n, &d);
5448 gst_value_set_fraction (dest_value, n, d);
5452 gst_value_transform_fraction_double (const GValue * src_value,
5453 GValue * dest_value)
5455 dest_value->data[0].v_double = ((double) src_value->data[0].v_int) /
5456 ((double) src_value->data[1].v_int);
5460 gst_value_transform_fraction_float (const GValue * src_value,
5461 GValue * dest_value)
5463 dest_value->data[0].v_float = ((float) src_value->data[0].v_int) /
5464 ((float) src_value->data[1].v_int);
5468 gst_value_compare_fraction (const GValue * value1, const GValue * value2)
5474 n1 = value1->data[0].v_int;
5475 n2 = value2->data[0].v_int;
5476 d1 = value1->data[1].v_int;
5477 d2 = value2->data[1].v_int;
5479 /* fractions are reduced when set, so we can quickly see if they're equal */
5480 if (n1 == n2 && d1 == d2)
5481 return GST_VALUE_EQUAL;
5483 if (d1 == 0 && d2 == 0)
5484 return GST_VALUE_UNORDERED;
5486 return GST_VALUE_GREATER_THAN;
5488 return GST_VALUE_LESS_THAN;
5490 ret = gst_util_fraction_compare (n1, d1, n2, d2);
5492 return GST_VALUE_LESS_THAN;
5494 return GST_VALUE_GREATER_THAN;
5496 /* Equality can't happen here because we check for that
5498 g_return_val_if_reached (GST_VALUE_UNORDERED);
5506 gst_value_compare_date (const GValue * value1, const GValue * value2)
5508 const GDate *date1 = (const GDate *) g_value_get_boxed (value1);
5509 const GDate *date2 = (const GDate *) g_value_get_boxed (value2);
5513 return GST_VALUE_EQUAL;
5515 if ((date1 == NULL || !g_date_valid (date1))
5516 && (date2 != NULL && g_date_valid (date2))) {
5517 return GST_VALUE_LESS_THAN;
5520 if ((date2 == NULL || !g_date_valid (date2))
5521 && (date1 != NULL && g_date_valid (date1))) {
5522 return GST_VALUE_GREATER_THAN;
5525 if (date1 == NULL || date2 == NULL || !g_date_valid (date1)
5526 || !g_date_valid (date2)) {
5527 return GST_VALUE_UNORDERED;
5530 j1 = g_date_get_julian (date1);
5531 j2 = g_date_get_julian (date2);
5534 return GST_VALUE_EQUAL;
5536 return GST_VALUE_LESS_THAN;
5538 return GST_VALUE_GREATER_THAN;
5542 gst_value_serialize_date (const GValue * val)
5544 const GDate *date = (const GDate *) g_value_get_boxed (val);
5546 if (date == NULL || !g_date_valid (date))
5547 return g_strdup ("9999-99-99");
5549 return g_strdup_printf ("%04u-%02u-%02u", g_date_get_year (date),
5550 g_date_get_month (date), g_date_get_day (date));
5554 gst_value_deserialize_date (GValue * dest, const gchar * s)
5556 guint year, month, day;
5558 if (!s || sscanf (s, "%04u-%02u-%02u", &year, &month, &day) != 3)
5561 if (!g_date_valid_dmy (day, month, year))
5564 g_value_take_boxed (dest, g_date_new_dmy (day, month, year));
5573 gst_value_compare_date_time (const GValue * value1, const GValue * value2)
5575 const GstDateTime *date1 = (const GstDateTime *) g_value_get_boxed (value1);
5576 const GstDateTime *date2 = (const GstDateTime *) g_value_get_boxed (value2);
5579 return GST_VALUE_EQUAL;
5581 if ((date1 == NULL) && (date2 != NULL)) {
5582 return GST_VALUE_LESS_THAN;
5584 if ((date2 == NULL) && (date1 != NULL)) {
5585 return GST_VALUE_LESS_THAN;
5588 /* returns GST_VALUE_* */
5589 return __gst_date_time_compare (date1, date2);
5593 gst_value_serialize_date_time (const GValue * val)
5595 GstDateTime *date = (GstDateTime *) g_value_get_boxed (val);
5598 return g_strdup ("null");
5600 return __gst_date_time_serialize (date, TRUE);
5604 gst_value_deserialize_date_time (GValue * dest, const gchar * s)
5606 GstDateTime *datetime;
5608 if (!s || strcmp (s, "null") == 0) {
5612 datetime = gst_date_time_new_from_iso8601_string (s);
5613 if (datetime != NULL) {
5614 g_value_take_boxed (dest, datetime);
5617 GST_WARNING ("Failed to deserialize date time string '%s'", s);
5622 gst_value_transform_date_string (const GValue * src_value, GValue * dest_value)
5624 dest_value->data[0].v_pointer = gst_value_serialize_date (src_value);
5628 gst_value_transform_string_date (const GValue * src_value, GValue * dest_value)
5630 gst_value_deserialize_date (dest_value, src_value->data[0].v_pointer);
5638 /* helper functions */
5640 gst_value_init_bitmask (GValue * value)
5642 value->data[0].v_uint64 = 0;
5646 gst_value_copy_bitmask (const GValue * src_value, GValue * dest_value)
5648 dest_value->data[0].v_uint64 = src_value->data[0].v_uint64;
5652 gst_value_collect_bitmask (GValue * value, guint n_collect_values,
5653 GTypeCValue * collect_values, guint collect_flags)
5655 if (n_collect_values != 1)
5656 return g_strdup_printf ("not enough value locations for `%s' passed",
5657 G_VALUE_TYPE_NAME (value));
5659 gst_value_set_bitmask (value, (guint64) collect_values[0].v_int64);
5665 gst_value_lcopy_bitmask (const GValue * value, guint n_collect_values,
5666 GTypeCValue * collect_values, guint collect_flags)
5668 guint64 *bitmask = collect_values[0].v_pointer;
5671 return g_strdup_printf ("value for `%s' passed as NULL",
5672 G_VALUE_TYPE_NAME (value));
5674 *bitmask = value->data[0].v_uint64;
5680 * gst_value_set_bitmask:
5681 * @value: a GValue initialized to #GST_TYPE_FRACTION
5682 * @bitmask: the bitmask
5684 * Sets @value to the bitmask specified by @bitmask.
5687 gst_value_set_bitmask (GValue * value, guint64 bitmask)
5689 g_return_if_fail (GST_VALUE_HOLDS_BITMASK (value));
5691 value->data[0].v_uint64 = bitmask;
5695 * gst_value_get_bitmask:
5696 * @value: a GValue initialized to #GST_TYPE_FRACTION
5698 * Gets the bitmask specified by @value.
5700 * Returns: the bitmask.
5703 gst_value_get_bitmask (const GValue * value)
5705 g_return_val_if_fail (GST_VALUE_HOLDS_BITMASK (value), 0);
5707 return value->data[0].v_uint64;
5711 gst_value_serialize_bitmask (const GValue * value)
5713 guint64 bitmask = value->data[0].v_uint64;
5715 return g_strdup_printf ("0x%016" G_GINT64_MODIFIER "x", bitmask);
5719 gst_value_deserialize_bitmask (GValue * dest, const gchar * s)
5721 gchar *endptr = NULL;
5724 if (G_UNLIKELY (s == NULL))
5727 if (G_UNLIKELY (dest == NULL || !GST_VALUE_HOLDS_BITMASK (dest)))
5730 val = g_ascii_strtoull (s, &endptr, 16);
5731 if (val == G_MAXUINT64 && (errno == ERANGE || errno == EINVAL))
5733 if (val == 0 && endptr == s)
5736 gst_value_set_bitmask (dest, val);
5742 gst_value_transform_bitmask_string (const GValue * src_value,
5743 GValue * dest_value)
5745 dest_value->data[0].v_pointer = gst_value_serialize_bitmask (src_value);
5749 gst_value_transform_string_bitmask (const GValue * src_value,
5750 GValue * dest_value)
5752 if (!gst_value_deserialize_bitmask (dest_value, src_value->data[0].v_pointer))
5753 gst_value_set_bitmask (dest_value, 0);
5757 gst_value_transform_uint64_bitmask (const GValue * src_value,
5758 GValue * dest_value)
5760 dest_value->data[0].v_uint64 = src_value->data[0].v_uint64;
5764 gst_value_transform_bitmask_uint64 (const GValue * src_value,
5765 GValue * dest_value)
5767 dest_value->data[0].v_uint64 = src_value->data[0].v_uint64;
5771 gst_value_compare_bitmask (const GValue * value1, const GValue * value2)
5775 v1 = value1->data[0].v_uint64;
5776 v2 = value2->data[0].v_uint64;
5779 return GST_VALUE_EQUAL;
5781 return GST_VALUE_UNORDERED;
5785 gst_value_transform_object_string (const GValue * src_value,
5786 GValue * dest_value)
5791 obj = g_value_get_object (src_value);
5794 g_strdup_printf ("(%s) %s", G_OBJECT_TYPE_NAME (obj),
5795 GST_OBJECT_NAME (obj));
5797 str = g_strdup ("NULL");
5800 dest_value->data[0].v_pointer = str;
5803 static GTypeInfo _info = {
5816 static GTypeFundamentalInfo _finfo = {
5820 #define FUNC_VALUE_GET_TYPE(type, name) \
5821 GType gst_ ## type ## _get_type (void) \
5823 static volatile GType gst_ ## type ## _type = 0; \
5825 if (g_once_init_enter (&gst_ ## type ## _type)) { \
5827 _info.value_table = & _gst_ ## type ## _value_table; \
5828 _type = g_type_register_fundamental ( \
5829 g_type_fundamental_next (), \
5830 name, &_info, &_finfo, 0); \
5831 g_once_init_leave(&gst_ ## type ## _type, _type); \
5834 return gst_ ## type ## _type; \
5837 static const GTypeValueTable _gst_int_range_value_table = {
5838 gst_value_init_int_range,
5839 gst_value_free_int_range,
5840 gst_value_copy_int_range,
5843 gst_value_collect_int_range,
5845 gst_value_lcopy_int_range
5848 FUNC_VALUE_GET_TYPE (int_range, "GstIntRange");
5850 static const GTypeValueTable _gst_int64_range_value_table = {
5851 gst_value_init_int64_range,
5852 gst_value_free_int64_range,
5853 gst_value_copy_int64_range,
5856 gst_value_collect_int64_range,
5858 gst_value_lcopy_int64_range
5861 FUNC_VALUE_GET_TYPE (int64_range, "GstInt64Range");
5863 static const GTypeValueTable _gst_double_range_value_table = {
5864 gst_value_init_double_range,
5866 gst_value_copy_double_range,
5869 gst_value_collect_double_range,
5871 gst_value_lcopy_double_range
5874 FUNC_VALUE_GET_TYPE (double_range, "GstDoubleRange");
5876 static const GTypeValueTable _gst_fraction_range_value_table = {
5877 gst_value_init_fraction_range,
5878 gst_value_free_fraction_range,
5879 gst_value_copy_fraction_range,
5882 gst_value_collect_fraction_range,
5884 gst_value_lcopy_fraction_range
5887 FUNC_VALUE_GET_TYPE (fraction_range, "GstFractionRange");
5889 static const GTypeValueTable _gst_value_list_value_table = {
5890 gst_value_init_list_or_array,
5891 gst_value_free_list_or_array,
5892 gst_value_copy_list_or_array,
5893 gst_value_list_or_array_peek_pointer,
5895 gst_value_collect_list_or_array,
5897 gst_value_lcopy_list_or_array
5900 FUNC_VALUE_GET_TYPE (value_list, "GstValueList");
5902 static const GTypeValueTable _gst_value_array_value_table = {
5903 gst_value_init_list_or_array,
5904 gst_value_free_list_or_array,
5905 gst_value_copy_list_or_array,
5906 gst_value_list_or_array_peek_pointer,
5908 gst_value_collect_list_or_array,
5910 gst_value_lcopy_list_or_array
5913 FUNC_VALUE_GET_TYPE (value_array, "GstValueArray");
5915 static const GTypeValueTable _gst_fraction_value_table = {
5916 gst_value_init_fraction,
5918 gst_value_copy_fraction,
5921 gst_value_collect_fraction,
5923 gst_value_lcopy_fraction
5926 FUNC_VALUE_GET_TYPE (fraction, "GstFraction");
5928 G_DEFINE_BOXED_TYPE (GstDateTime, gst_date_time,
5929 (GBoxedCopyFunc) gst_date_time_ref, (GBoxedFreeFunc) gst_date_time_unref);
5931 static const GTypeValueTable _gst_bitmask_value_table = {
5932 gst_value_init_bitmask,
5934 gst_value_copy_bitmask,
5937 gst_value_collect_bitmask,
5939 gst_value_lcopy_bitmask
5942 FUNC_VALUE_GET_TYPE (bitmask, "GstBitmask");
5945 gst_g_thread_get_type (void)
5947 #if GLIB_CHECK_VERSION(2,35,3)
5948 return G_TYPE_THREAD;
5950 static volatile gsize type_id = 0;
5952 if (g_once_init_enter (&type_id)) {
5954 g_boxed_type_register_static (g_intern_static_string ("GstGThread"),
5955 (GBoxedCopyFunc) g_thread_ref,
5956 (GBoxedFreeFunc) g_thread_unref);
5957 g_once_init_leave (&type_id, tmp);
5965 _priv_gst_value_initialize (void)
5967 gst_value_table = g_array_new (FALSE, FALSE, sizeof (GstValueTable));
5968 gst_value_hash = g_hash_table_new (NULL, NULL);
5969 gst_value_union_funcs = g_array_new (FALSE, FALSE,
5970 sizeof (GstValueUnionInfo));
5971 gst_value_intersect_funcs = g_array_new (FALSE, FALSE,
5972 sizeof (GstValueIntersectInfo));
5973 gst_value_subtract_funcs = g_array_new (FALSE, FALSE,
5974 sizeof (GstValueSubtractInfo));
5977 static GstValueTable gst_value = {
5979 gst_value_compare_int_range,
5980 gst_value_serialize_int_range,
5981 gst_value_deserialize_int_range,
5984 gst_value.type = gst_int_range_get_type ();
5985 gst_value_register (&gst_value);
5989 static GstValueTable gst_value = {
5991 gst_value_compare_int64_range,
5992 gst_value_serialize_int64_range,
5993 gst_value_deserialize_int64_range,
5996 gst_value.type = gst_int64_range_get_type ();
5997 gst_value_register (&gst_value);
6001 static GstValueTable gst_value = {
6003 gst_value_compare_double_range,
6004 gst_value_serialize_double_range,
6005 gst_value_deserialize_double_range,
6008 gst_value.type = gst_double_range_get_type ();
6009 gst_value_register (&gst_value);
6013 static GstValueTable gst_value = {
6015 gst_value_compare_fraction_range,
6016 gst_value_serialize_fraction_range,
6017 gst_value_deserialize_fraction_range,
6020 gst_value.type = gst_fraction_range_get_type ();
6021 gst_value_register (&gst_value);
6025 static GstValueTable gst_value = {
6027 gst_value_compare_list,
6028 gst_value_serialize_list,
6029 gst_value_deserialize_list,
6032 gst_value.type = gst_value_list_get_type ();
6033 gst_value_register (&gst_value);
6037 static GstValueTable gst_value = {
6039 gst_value_compare_array,
6040 gst_value_serialize_array,
6041 gst_value_deserialize_array,
6044 gst_value.type = gst_value_array_get_type ();
6045 gst_value_register (&gst_value);
6050 static const GTypeValueTable value_table = {
6051 gst_value_init_buffer,
6053 gst_value_copy_buffer,
6056 NULL, /*gst_value_collect_buffer, */
6058 NULL /*gst_value_lcopy_buffer */
6061 static GstValueTable gst_value = {
6063 gst_value_compare_buffer,
6064 gst_value_serialize_buffer,
6065 gst_value_deserialize_buffer,
6068 gst_value.type = GST_TYPE_BUFFER;
6069 gst_value_register (&gst_value);
6072 static GstValueTable gst_value = {
6074 gst_value_compare_sample,
6075 gst_value_serialize_sample,
6076 gst_value_deserialize_sample,
6079 gst_value.type = GST_TYPE_SAMPLE;
6080 gst_value_register (&gst_value);
6083 static GstValueTable gst_value = {
6085 gst_value_compare_fraction,
6086 gst_value_serialize_fraction,
6087 gst_value_deserialize_fraction,
6090 gst_value.type = gst_fraction_get_type ();
6091 gst_value_register (&gst_value);
6094 static GstValueTable gst_value = {
6096 gst_value_compare_caps,
6097 gst_value_serialize_caps,
6098 gst_value_deserialize_caps,
6101 gst_value.type = GST_TYPE_CAPS;
6102 gst_value_register (&gst_value);
6105 static GstValueTable gst_value = {
6108 gst_value_serialize_segment,
6109 gst_value_deserialize_segment,
6112 gst_value.type = GST_TYPE_SEGMENT;
6113 gst_value_register (&gst_value);
6116 static GstValueTable gst_value = {
6119 gst_value_serialize_structure,
6120 gst_value_deserialize_structure,
6123 gst_value.type = GST_TYPE_STRUCTURE;
6124 gst_value_register (&gst_value);
6127 static GstValueTable gst_value = {
6130 gst_value_serialize_caps_features,
6131 gst_value_deserialize_caps_features,
6134 gst_value.type = GST_TYPE_CAPS_FEATURES;
6135 gst_value_register (&gst_value);
6138 static GstValueTable gst_value = {
6141 gst_value_serialize_tag_list,
6142 gst_value_deserialize_tag_list,
6145 gst_value.type = GST_TYPE_TAG_LIST;
6146 gst_value_register (&gst_value);
6149 static GstValueTable gst_value = {
6151 gst_value_compare_date,
6152 gst_value_serialize_date,
6153 gst_value_deserialize_date,
6156 gst_value.type = G_TYPE_DATE;
6157 gst_value_register (&gst_value);
6160 static GstValueTable gst_value = {
6162 gst_value_compare_date_time,
6163 gst_value_serialize_date_time,
6164 gst_value_deserialize_date_time,
6167 gst_value.type = gst_date_time_get_type ();
6168 gst_value_register (&gst_value);
6172 static GstValueTable gst_value = {
6174 gst_value_compare_bitmask,
6175 gst_value_serialize_bitmask,
6176 gst_value_deserialize_bitmask,
6179 gst_value.type = gst_bitmask_get_type ();
6180 gst_value_register (&gst_value);
6183 REGISTER_SERIALIZATION (G_TYPE_DOUBLE, double);
6184 REGISTER_SERIALIZATION (G_TYPE_FLOAT, float);
6186 REGISTER_SERIALIZATION (G_TYPE_STRING, string);
6187 REGISTER_SERIALIZATION (G_TYPE_BOOLEAN, boolean);
6188 REGISTER_SERIALIZATION (G_TYPE_ENUM, enum);
6190 REGISTER_SERIALIZATION (G_TYPE_FLAGS, flags);
6192 REGISTER_SERIALIZATION (G_TYPE_INT, int);
6194 REGISTER_SERIALIZATION (G_TYPE_INT64, int64);
6195 REGISTER_SERIALIZATION (G_TYPE_LONG, long);
6197 REGISTER_SERIALIZATION (G_TYPE_UINT, uint);
6198 REGISTER_SERIALIZATION (G_TYPE_UINT64, uint64);
6199 REGISTER_SERIALIZATION (G_TYPE_ULONG, ulong);
6201 REGISTER_SERIALIZATION (G_TYPE_UCHAR, uchar);
6203 g_value_register_transform_func (GST_TYPE_INT_RANGE, G_TYPE_STRING,
6204 gst_value_transform_int_range_string);
6205 g_value_register_transform_func (GST_TYPE_INT64_RANGE, G_TYPE_STRING,
6206 gst_value_transform_int64_range_string);
6207 g_value_register_transform_func (GST_TYPE_DOUBLE_RANGE, G_TYPE_STRING,
6208 gst_value_transform_double_range_string);
6209 g_value_register_transform_func (GST_TYPE_FRACTION_RANGE, G_TYPE_STRING,
6210 gst_value_transform_fraction_range_string);
6211 g_value_register_transform_func (GST_TYPE_LIST, G_TYPE_STRING,
6212 gst_value_transform_list_string);
6213 g_value_register_transform_func (GST_TYPE_ARRAY, G_TYPE_STRING,
6214 gst_value_transform_array_string);
6215 g_value_register_transform_func (GST_TYPE_FRACTION, G_TYPE_STRING,
6216 gst_value_transform_fraction_string);
6217 g_value_register_transform_func (G_TYPE_STRING, GST_TYPE_FRACTION,
6218 gst_value_transform_string_fraction);
6219 g_value_register_transform_func (GST_TYPE_FRACTION, G_TYPE_DOUBLE,
6220 gst_value_transform_fraction_double);
6221 g_value_register_transform_func (GST_TYPE_FRACTION, G_TYPE_FLOAT,
6222 gst_value_transform_fraction_float);
6223 g_value_register_transform_func (G_TYPE_DOUBLE, GST_TYPE_FRACTION,
6224 gst_value_transform_double_fraction);
6225 g_value_register_transform_func (G_TYPE_FLOAT, GST_TYPE_FRACTION,
6226 gst_value_transform_float_fraction);
6227 g_value_register_transform_func (G_TYPE_DATE, G_TYPE_STRING,
6228 gst_value_transform_date_string);
6229 g_value_register_transform_func (G_TYPE_STRING, G_TYPE_DATE,
6230 gst_value_transform_string_date);
6231 g_value_register_transform_func (GST_TYPE_OBJECT, G_TYPE_STRING,
6232 gst_value_transform_object_string);
6233 g_value_register_transform_func (GST_TYPE_BITMASK, G_TYPE_UINT64,
6234 gst_value_transform_bitmask_uint64);
6235 g_value_register_transform_func (GST_TYPE_BITMASK, G_TYPE_STRING,
6236 gst_value_transform_bitmask_string);
6237 g_value_register_transform_func (G_TYPE_UINT64, GST_TYPE_BITMASK,
6238 gst_value_transform_uint64_bitmask);
6239 g_value_register_transform_func (G_TYPE_STRING, GST_TYPE_BITMASK,
6240 gst_value_transform_string_bitmask);
6242 gst_value_register_intersect_func (G_TYPE_INT, GST_TYPE_INT_RANGE,
6243 gst_value_intersect_int_int_range);
6244 gst_value_register_intersect_func (GST_TYPE_INT_RANGE, GST_TYPE_INT_RANGE,
6245 gst_value_intersect_int_range_int_range);
6246 gst_value_register_intersect_func (G_TYPE_INT64, GST_TYPE_INT64_RANGE,
6247 gst_value_intersect_int64_int64_range);
6248 gst_value_register_intersect_func (GST_TYPE_INT64_RANGE, GST_TYPE_INT64_RANGE,
6249 gst_value_intersect_int64_range_int64_range);
6250 gst_value_register_intersect_func (G_TYPE_DOUBLE, GST_TYPE_DOUBLE_RANGE,
6251 gst_value_intersect_double_double_range);
6252 gst_value_register_intersect_func (GST_TYPE_DOUBLE_RANGE,
6253 GST_TYPE_DOUBLE_RANGE, gst_value_intersect_double_range_double_range);
6254 gst_value_register_intersect_func (GST_TYPE_ARRAY,
6255 GST_TYPE_ARRAY, gst_value_intersect_array);
6256 gst_value_register_intersect_func (GST_TYPE_FRACTION, GST_TYPE_FRACTION_RANGE,
6257 gst_value_intersect_fraction_fraction_range);
6258 gst_value_register_intersect_func (GST_TYPE_FRACTION_RANGE,
6259 GST_TYPE_FRACTION_RANGE,
6260 gst_value_intersect_fraction_range_fraction_range);
6262 gst_value_register_subtract_func (G_TYPE_INT, GST_TYPE_INT_RANGE,
6263 gst_value_subtract_int_int_range);
6264 gst_value_register_subtract_func (GST_TYPE_INT_RANGE, G_TYPE_INT,
6265 gst_value_subtract_int_range_int);
6266 gst_value_register_subtract_func (GST_TYPE_INT_RANGE, GST_TYPE_INT_RANGE,
6267 gst_value_subtract_int_range_int_range);
6268 gst_value_register_subtract_func (G_TYPE_INT64, GST_TYPE_INT64_RANGE,
6269 gst_value_subtract_int64_int64_range);
6270 gst_value_register_subtract_func (GST_TYPE_INT64_RANGE, G_TYPE_INT64,
6271 gst_value_subtract_int64_range_int64);
6272 gst_value_register_subtract_func (GST_TYPE_INT64_RANGE, GST_TYPE_INT64_RANGE,
6273 gst_value_subtract_int64_range_int64_range);
6274 gst_value_register_subtract_func (G_TYPE_DOUBLE, GST_TYPE_DOUBLE_RANGE,
6275 gst_value_subtract_double_double_range);
6276 gst_value_register_subtract_func (GST_TYPE_DOUBLE_RANGE, G_TYPE_DOUBLE,
6277 gst_value_subtract_double_range_double);
6278 gst_value_register_subtract_func (GST_TYPE_DOUBLE_RANGE,
6279 GST_TYPE_DOUBLE_RANGE, gst_value_subtract_double_range_double_range);
6280 gst_value_register_subtract_func (GST_TYPE_FRACTION, GST_TYPE_FRACTION_RANGE,
6281 gst_value_subtract_fraction_fraction_range);
6282 gst_value_register_subtract_func (GST_TYPE_FRACTION_RANGE, GST_TYPE_FRACTION,
6283 gst_value_subtract_fraction_range_fraction);
6284 gst_value_register_subtract_func (GST_TYPE_FRACTION_RANGE,
6285 GST_TYPE_FRACTION_RANGE,
6286 gst_value_subtract_fraction_range_fraction_range);
6288 /* see bug #317246, #64994, #65041 */
6290 volatile GType date_type = G_TYPE_DATE;
6292 g_type_name (date_type);
6295 gst_value_register_union_func (G_TYPE_INT, GST_TYPE_INT_RANGE,
6296 gst_value_union_int_int_range);
6297 gst_value_register_union_func (GST_TYPE_INT_RANGE, GST_TYPE_INT_RANGE,
6298 gst_value_union_int_range_int_range);
6301 /* Implement these if needed */
6302 gst_value_register_union_func (GST_TYPE_FRACTION, GST_TYPE_FRACTION_RANGE,
6303 gst_value_union_fraction_fraction_range);
6304 gst_value_register_union_func (GST_TYPE_FRACTION_RANGE,
6305 GST_TYPE_FRACTION_RANGE, gst_value_union_fraction_range_fraction_range);