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 maximum 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_MIN (value1) == INT_RANGE_MIN (value2) &&
1115 INT_RANGE_MAX (value1) == INT_RANGE_MAX (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 maximum 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_MIN (value1) == INT64_RANGE_MIN (value2) &&
1370 INT64_RANGE_MAX (value1) == INT64_RANGE_MAX (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 maximum 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[1].v_double == value1->data[1].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);
1890 return gst_string_take_and_wrap (gst_caps_to_string (caps));
1894 gst_value_deserialize_caps (GValue * dest, const gchar * s)
1899 caps = gst_caps_from_string (s);
1901 gchar *str = gst_string_unwrap (s);
1903 if (G_UNLIKELY (!str))
1906 caps = gst_caps_from_string (str);
1911 g_value_take_boxed (dest, caps);
1922 gst_value_serialize_segment_internal (const GValue * value, gboolean escape)
1924 GstSegment *seg = g_value_get_boxed (value);
1928 s = gst_structure_new ("GstSegment",
1929 "flags", GST_TYPE_SEGMENT_FLAGS, seg->flags,
1930 "rate", G_TYPE_DOUBLE, seg->rate,
1931 "applied-rate", G_TYPE_DOUBLE, seg->applied_rate,
1932 "format", GST_TYPE_FORMAT, seg->format,
1933 "base", G_TYPE_UINT64, seg->base,
1934 "offset", G_TYPE_UINT64, seg->offset,
1935 "start", G_TYPE_UINT64, seg->start,
1936 "stop", G_TYPE_UINT64, seg->stop,
1937 "time", G_TYPE_UINT64, seg->time,
1938 "position", G_TYPE_UINT64, seg->position,
1939 "duration", G_TYPE_UINT64, seg->duration, NULL);
1940 t = gst_structure_to_string (s);
1942 res = g_strdup_printf ("\"%s\"", t);
1947 gst_structure_free (s);
1953 gst_value_serialize_segment (const GValue * value)
1955 return gst_value_serialize_segment_internal (value, TRUE);
1959 gst_value_deserialize_segment (GValue * dest, const gchar * s)
1965 str = gst_structure_from_string (s, NULL);
1969 res = gst_structure_get (str,
1970 "flags", GST_TYPE_SEGMENT_FLAGS, &seg.flags,
1971 "rate", G_TYPE_DOUBLE, &seg.rate,
1972 "applied-rate", G_TYPE_DOUBLE, &seg.applied_rate,
1973 "format", GST_TYPE_FORMAT, &seg.format,
1974 "base", G_TYPE_UINT64, &seg.base,
1975 "offset", G_TYPE_UINT64, &seg.offset,
1976 "start", G_TYPE_UINT64, &seg.start,
1977 "stop", G_TYPE_UINT64, &seg.stop,
1978 "time", G_TYPE_UINT64, &seg.time,
1979 "position", G_TYPE_UINT64, &seg.position,
1980 "duration", G_TYPE_UINT64, &seg.duration, NULL);
1981 gst_structure_free (str);
1984 g_value_set_boxed (dest, &seg);
1994 * gst_value_set_structure:
1995 * @value: a GValue initialized to GST_TYPE_STRUCTURE
1996 * @structure: the structure to set the value to
1998 * Sets the contents of @value to @structure. The actual
2001 gst_value_set_structure (GValue * value, const GstStructure * structure)
2003 g_return_if_fail (G_IS_VALUE (value));
2004 g_return_if_fail (G_VALUE_TYPE (value) == GST_TYPE_STRUCTURE);
2005 g_return_if_fail (structure == NULL || GST_IS_STRUCTURE (structure));
2007 g_value_set_boxed (value, structure);
2011 * gst_value_get_structure:
2012 * @value: a GValue initialized to GST_TYPE_STRUCTURE
2014 * Gets the contents of @value.
2016 * Returns: (transfer none): the contents of @value
2018 const GstStructure *
2019 gst_value_get_structure (const GValue * value)
2021 g_return_val_if_fail (G_IS_VALUE (value), NULL);
2022 g_return_val_if_fail (G_VALUE_TYPE (value) == GST_TYPE_STRUCTURE, NULL);
2024 return (GstStructure *) g_value_get_boxed (value);
2028 gst_value_serialize_structure (const GValue * value)
2030 GstStructure *structure = g_value_get_boxed (value);
2032 return gst_string_take_and_wrap (gst_structure_to_string (structure));
2036 gst_value_deserialize_structure (GValue * dest, const gchar * s)
2038 GstStructure *structure;
2041 structure = gst_structure_from_string (s, NULL);
2043 gchar *str = gst_string_unwrap (s);
2045 if (G_UNLIKELY (!str))
2048 structure = gst_structure_from_string (str, NULL);
2052 if (G_LIKELY (structure)) {
2053 g_value_take_boxed (dest, structure);
2059 /*******************
2061 *******************/
2064 * gst_value_set_caps_features:
2065 * @value: a GValue initialized to GST_TYPE_CAPS_FEATURES
2066 * @features: the features to set the value to
2068 * Sets the contents of @value to @features.
2071 gst_value_set_caps_features (GValue * value, const GstCapsFeatures * features)
2073 g_return_if_fail (G_IS_VALUE (value));
2074 g_return_if_fail (G_VALUE_TYPE (value) == GST_TYPE_CAPS_FEATURES);
2075 g_return_if_fail (features == NULL || GST_IS_CAPS_FEATURES (features));
2077 g_value_set_boxed (value, features);
2081 * gst_value_get_caps_features:
2082 * @value: a GValue initialized to GST_TYPE_CAPS_FEATURES
2084 * Gets the contents of @value.
2086 * Returns: (transfer none): the contents of @value
2088 const GstCapsFeatures *
2089 gst_value_get_caps_features (const GValue * value)
2091 g_return_val_if_fail (G_IS_VALUE (value), NULL);
2092 g_return_val_if_fail (G_VALUE_TYPE (value) == GST_TYPE_CAPS_FEATURES, NULL);
2094 return (GstCapsFeatures *) g_value_get_boxed (value);
2098 gst_value_serialize_caps_features (const GValue * value)
2100 GstCapsFeatures *features = g_value_get_boxed (value);
2102 return gst_string_take_and_wrap (gst_caps_features_to_string (features));
2106 gst_value_deserialize_caps_features (GValue * dest, const gchar * s)
2108 GstCapsFeatures *features;
2111 features = gst_caps_features_from_string (s);
2113 gchar *str = gst_string_unwrap (s);
2115 if (G_UNLIKELY (!str))
2118 features = gst_caps_features_from_string (str);
2122 if (G_LIKELY (features)) {
2123 g_value_take_boxed (dest, features);
2134 gst_value_deserialize_tag_list (GValue * dest, const gchar * s)
2136 GstTagList *taglist;
2139 taglist = gst_tag_list_new_from_string (s);
2141 gchar *str = gst_string_unwrap (s);
2143 if (G_UNLIKELY (!str))
2146 taglist = gst_tag_list_new_from_string (str);
2150 if (G_LIKELY (taglist != NULL)) {
2151 g_value_take_boxed (dest, taglist);
2158 gst_value_serialize_tag_list (const GValue * value)
2160 GstTagList *taglist = g_value_get_boxed (value);
2162 return gst_string_take_and_wrap (gst_tag_list_to_string (taglist));
2171 compare_buffer (GstBuffer * buf1, GstBuffer * buf2)
2174 GstMapInfo info1, info2;
2178 return GST_VALUE_EQUAL;
2180 size1 = gst_buffer_get_size (buf1);
2181 size2 = gst_buffer_get_size (buf2);
2184 return GST_VALUE_UNORDERED;
2187 return GST_VALUE_EQUAL;
2189 if (!gst_buffer_map (buf1, &info1, GST_MAP_READ))
2190 return GST_VALUE_UNORDERED;
2192 if (!gst_buffer_map (buf2, &info2, GST_MAP_READ)) {
2193 gst_buffer_unmap (buf1, &info1);
2194 return GST_VALUE_UNORDERED;
2197 mret = memcmp (info1.data, info2.data, info1.size);
2199 result = GST_VALUE_EQUAL;
2201 result = GST_VALUE_LESS_THAN;
2203 result = GST_VALUE_GREATER_THAN;
2205 gst_buffer_unmap (buf1, &info1);
2206 gst_buffer_unmap (buf2, &info2);
2212 gst_value_compare_buffer (const GValue * value1, const GValue * value2)
2214 GstBuffer *buf1 = gst_value_get_buffer (value1);
2215 GstBuffer *buf2 = gst_value_get_buffer (value2);
2217 return compare_buffer (buf1, buf2);
2221 gst_value_serialize_buffer (const GValue * value)
2229 buffer = gst_value_get_buffer (value);
2233 if (!gst_buffer_map (buffer, &info, GST_MAP_READ))
2238 string = g_malloc (info.size * 2 + 1);
2239 for (i = 0; i < info.size; i++) {
2240 sprintf (string + i * 2, "%02x", data[i]);
2242 string[info.size * 2] = 0;
2244 gst_buffer_unmap (buffer, &info);
2250 gst_value_deserialize_buffer (GValue * dest, const gchar * s)
2263 buffer = gst_buffer_new_allocate (NULL, len / 2, NULL);
2264 if (!gst_buffer_map (buffer, &info, GST_MAP_WRITE))
2268 for (i = 0; i < len / 2; i++) {
2269 if (!isxdigit ((int) s[i * 2]) || !isxdigit ((int) s[i * 2 + 1]))
2272 ts[0] = s[i * 2 + 0];
2273 ts[1] = s[i * 2 + 1];
2276 data[i] = (guint8) strtoul (ts, NULL, 16);
2278 gst_buffer_unmap (buffer, &info);
2280 gst_value_take_buffer (dest, buffer);
2295 gst_buffer_unref (buffer);
2296 gst_buffer_unmap (buffer, &info);
2305 /* This function is mostly used for comparing image/buffer tags in taglists */
2307 gst_value_compare_sample (const GValue * value1, const GValue * value2)
2309 GstBuffer *buf1 = gst_sample_get_buffer (gst_value_get_sample (value1));
2310 GstBuffer *buf2 = gst_sample_get_buffer (gst_value_get_sample (value2));
2312 /* FIXME: should we take into account anything else such as caps? */
2313 return compare_buffer (buf1, buf2);
2317 gst_value_serialize_sample (const GValue * value)
2319 const GstStructure *info_structure;
2320 GstSegment *segment;
2324 GValue val = { 0, };
2325 gchar *info_str, *caps_str, *tmp;
2326 gchar *buf_str, *seg_str, *s;
2328 sample = g_value_get_boxed (value);
2330 buffer = gst_sample_get_buffer (sample);
2332 g_value_init (&val, GST_TYPE_BUFFER);
2333 g_value_set_boxed (&val, buffer);
2334 buf_str = gst_value_serialize_buffer (&val);
2335 g_value_unset (&val);
2337 buf_str = g_strdup ("None");
2340 caps = gst_sample_get_caps (sample);
2342 tmp = gst_caps_to_string (caps);
2343 caps_str = g_base64_encode ((guchar *) tmp, strlen (tmp) + 1);
2344 g_strdelimit (caps_str, "=", '_');
2347 caps_str = g_strdup ("None");
2350 segment = gst_sample_get_segment (sample);
2352 g_value_init (&val, GST_TYPE_SEGMENT);
2353 g_value_set_boxed (&val, segment);
2354 tmp = gst_value_serialize_segment_internal (&val, FALSE);
2355 seg_str = g_base64_encode ((guchar *) tmp, strlen (tmp) + 1);
2356 g_strdelimit (seg_str, "=", '_');
2358 g_value_unset (&val);
2360 seg_str = g_strdup ("None");
2363 info_structure = gst_sample_get_info (sample);
2364 if (info_structure) {
2365 tmp = gst_structure_to_string (info_structure);
2366 info_str = g_base64_encode ((guchar *) tmp, strlen (tmp) + 1);
2367 g_strdelimit (info_str, "=", '_');
2370 info_str = g_strdup ("None");
2373 s = g_strconcat (buf_str, ":", caps_str, ":", seg_str, ":", info_str, NULL);
2383 gst_value_deserialize_sample (GValue * dest, const gchar * s)
2385 GValue bval = G_VALUE_INIT, sval = G_VALUE_INIT;
2389 gboolean ret = FALSE;
2394 GST_TRACE ("deserialize '%s'", s);
2396 fields = g_strsplit (s, ":", -1);
2397 len = g_strv_length (fields);
2401 g_value_init (&bval, GST_TYPE_BUFFER);
2402 g_value_init (&sval, GST_TYPE_SEGMENT);
2404 if (!gst_value_deserialize_buffer (&bval, fields[0]))
2407 if (strcmp (fields[1], "None") != 0) {
2408 g_strdelimit (fields[1], "_", '=');
2409 g_base64_decode_inplace (fields[1], &outlen);
2410 GST_TRACE ("caps : %s", fields[1]);
2411 caps = gst_caps_from_string (fields[1]);
2418 if (strcmp (fields[2], "None") != 0) {
2419 g_strdelimit (fields[2], "_", '=');
2420 g_base64_decode_inplace (fields[2], &outlen);
2421 GST_TRACE ("segment : %s", fields[2]);
2422 if (!gst_value_deserialize_segment (&sval, fields[2]))
2426 if (strcmp (fields[3], "None") != 0) {
2427 g_strdelimit (fields[3], "_", '=');
2428 g_base64_decode_inplace (fields[3], &outlen);
2429 GST_TRACE ("info : %s", fields[3]);
2430 info = gst_structure_from_string (fields[3], NULL);
2437 sample = gst_sample_new (gst_value_get_buffer (&bval), caps,
2438 g_value_get_boxed (&sval), info);
2440 g_value_take_boxed (dest, sample);
2443 gst_caps_unref (caps);
2449 g_value_unset (&bval);
2450 g_value_unset (&sval);
2454 g_strfreev (fields);
2464 gst_value_compare_boolean (const GValue * value1, const GValue * value2)
2466 if ((value1->data[0].v_int != 0) == (value2->data[0].v_int != 0))
2467 return GST_VALUE_EQUAL;
2468 return GST_VALUE_UNORDERED;
2472 gst_value_serialize_boolean (const GValue * value)
2474 if (value->data[0].v_int) {
2475 return g_strdup ("true");
2477 return g_strdup ("false");
2481 gst_value_deserialize_boolean (GValue * dest, const gchar * s)
2483 gboolean ret = FALSE;
2485 if (g_ascii_strcasecmp (s, "true") == 0 ||
2486 g_ascii_strcasecmp (s, "yes") == 0 ||
2487 g_ascii_strcasecmp (s, "t") == 0 || strcmp (s, "1") == 0) {
2488 g_value_set_boolean (dest, TRUE);
2490 } else if (g_ascii_strcasecmp (s, "false") == 0 ||
2491 g_ascii_strcasecmp (s, "no") == 0 ||
2492 g_ascii_strcasecmp (s, "f") == 0 || strcmp (s, "0") == 0) {
2493 g_value_set_boolean (dest, FALSE);
2500 #define CREATE_SERIALIZATION_START(_type,_macro) \
2502 gst_value_compare_ ## _type \
2503 (const GValue * value1, const GValue * value2) \
2505 g ## _type val1 = g_value_get_ ## _type (value1); \
2506 g ## _type val2 = g_value_get_ ## _type (value2); \
2508 return GST_VALUE_GREATER_THAN; \
2510 return GST_VALUE_LESS_THAN; \
2511 return GST_VALUE_EQUAL; \
2515 gst_value_serialize_ ## _type (const GValue * value) \
2517 GValue val = { 0, }; \
2518 g_value_init (&val, G_TYPE_STRING); \
2519 if (!g_value_transform (value, &val)) \
2520 g_assert_not_reached (); \
2521 /* NO_COPY_MADNESS!!! */ \
2522 return (char *) g_value_get_string (&val); \
2525 /* deserialize the given s into to as a gint64.
2526 * check if the result is actually storeable in the given size number of
2530 gst_value_deserialize_int_helper (gint64 * to, const gchar * s,
2531 gint64 min, gint64 max, gint size)
2533 gboolean ret = FALSE;
2538 *to = g_ascii_strtoull (s, &end, 0);
2539 /* a range error is a definitive no-no */
2540 if (errno == ERANGE) {
2547 if (g_ascii_strcasecmp (s, "little_endian") == 0) {
2548 *to = G_LITTLE_ENDIAN;
2550 } else if (g_ascii_strcasecmp (s, "big_endian") == 0) {
2553 } else if (g_ascii_strcasecmp (s, "byte_order") == 0) {
2556 } else if (g_ascii_strcasecmp (s, "min") == 0) {
2559 } else if (g_ascii_strcasecmp (s, "max") == 0) {
2565 /* by definition, a gint64 fits into a gint64; so ignore those */
2566 if (size != sizeof (mask)) {
2568 /* for positive numbers, we create a mask of 1's outside of the range
2569 * and 0's inside the range. An and will thus keep only 1 bits
2570 * outside of the range */
2571 mask <<= (size * 8);
2572 if ((mask & *to) != 0) {
2576 /* for negative numbers, we do a 2's complement version */
2577 mask <<= ((size * 8) - 1);
2578 if ((mask & *to) != mask) {
2587 #define CREATE_SERIALIZATION(_type,_macro) \
2588 CREATE_SERIALIZATION_START(_type,_macro) \
2591 gst_value_deserialize_ ## _type (GValue * dest, const gchar *s) \
2595 if (gst_value_deserialize_int_helper (&x, s, G_MIN ## _macro, \
2596 G_MAX ## _macro, sizeof (g ## _type))) { \
2597 g_value_set_ ## _type (dest, /*(g ## _type)*/ x); \
2604 #define CREATE_USERIALIZATION(_type,_macro) \
2605 CREATE_SERIALIZATION_START(_type,_macro) \
2608 gst_value_deserialize_ ## _type (GValue * dest, const gchar *s) \
2612 gboolean ret = FALSE; \
2615 x = g_ascii_strtoull (s, &end, 0); \
2616 /* a range error is a definitive no-no */ \
2617 if (errno == ERANGE) { \
2620 /* the cast ensures the range check later on makes sense */ \
2621 x = (g ## _type) x; \
2625 if (g_ascii_strcasecmp (s, "little_endian") == 0) { \
2626 x = G_LITTLE_ENDIAN; \
2628 } else if (g_ascii_strcasecmp (s, "big_endian") == 0) { \
2631 } else if (g_ascii_strcasecmp (s, "byte_order") == 0) { \
2634 } else if (g_ascii_strcasecmp (s, "min") == 0) { \
2637 } else if (g_ascii_strcasecmp (s, "max") == 0) { \
2638 x = G_MAX ## _macro; \
2643 if (x > G_MAX ## _macro) { \
2646 g_value_set_ ## _type (dest, x); \
2652 #define REGISTER_SERIALIZATION(_gtype, _type) \
2654 static const GstValueTable gst_value = { \
2656 gst_value_compare_ ## _type, \
2657 gst_value_serialize_ ## _type, \
2658 gst_value_deserialize_ ## _type, \
2661 gst_value_register (&gst_value); \
2664 CREATE_SERIALIZATION (int, INT);
2665 CREATE_SERIALIZATION (int64, INT64);
2666 CREATE_SERIALIZATION (long, LONG);
2668 CREATE_USERIALIZATION (uint, UINT);
2669 CREATE_USERIALIZATION (uint64, UINT64);
2670 CREATE_USERIALIZATION (ulong, ULONG);
2672 /* FIXME 0.11: remove this again, plugins shouldn't have uchar properties */
2674 #define G_MAXUCHAR 255
2676 CREATE_USERIALIZATION (uchar, UCHAR);
2682 gst_value_compare_double (const GValue * value1, const GValue * value2)
2684 if (value1->data[0].v_double > value2->data[0].v_double)
2685 return GST_VALUE_GREATER_THAN;
2686 if (value1->data[0].v_double < value2->data[0].v_double)
2687 return GST_VALUE_LESS_THAN;
2688 if (value1->data[0].v_double == value2->data[0].v_double)
2689 return GST_VALUE_EQUAL;
2690 return GST_VALUE_UNORDERED;
2694 gst_value_serialize_double (const GValue * value)
2696 gchar d[G_ASCII_DTOSTR_BUF_SIZE];
2698 g_ascii_dtostr (d, G_ASCII_DTOSTR_BUF_SIZE, value->data[0].v_double);
2699 return g_strdup (d);
2703 gst_value_deserialize_double (GValue * dest, const gchar * s)
2706 gboolean ret = FALSE;
2709 x = g_ascii_strtod (s, &end);
2713 if (g_ascii_strcasecmp (s, "min") == 0) {
2716 } else if (g_ascii_strcasecmp (s, "max") == 0) {
2722 g_value_set_double (dest, x);
2732 gst_value_compare_float (const GValue * value1, const GValue * value2)
2734 if (value1->data[0].v_float > value2->data[0].v_float)
2735 return GST_VALUE_GREATER_THAN;
2736 if (value1->data[0].v_float < value2->data[0].v_float)
2737 return GST_VALUE_LESS_THAN;
2738 if (value1->data[0].v_float == value2->data[0].v_float)
2739 return GST_VALUE_EQUAL;
2740 return GST_VALUE_UNORDERED;
2744 gst_value_serialize_float (const GValue * value)
2746 gchar d[G_ASCII_DTOSTR_BUF_SIZE];
2748 g_ascii_dtostr (d, G_ASCII_DTOSTR_BUF_SIZE, value->data[0].v_float);
2749 return g_strdup (d);
2753 gst_value_deserialize_float (GValue * dest, const gchar * s)
2756 gboolean ret = FALSE;
2759 x = g_ascii_strtod (s, &end);
2763 if (g_ascii_strcasecmp (s, "min") == 0) {
2766 } else if (g_ascii_strcasecmp (s, "max") == 0) {
2771 if (x > G_MAXFLOAT || x < -G_MAXFLOAT)
2774 g_value_set_float (dest, (float) x);
2784 gst_value_compare_string (const GValue * value1, const GValue * value2)
2786 if (G_UNLIKELY (!value1->data[0].v_pointer || !value2->data[0].v_pointer)) {
2787 /* if only one is NULL, no match - otherwise both NULL == EQUAL */
2788 if (value1->data[0].v_pointer != value2->data[0].v_pointer)
2789 return GST_VALUE_UNORDERED;
2791 gint x = strcmp (value1->data[0].v_pointer, value2->data[0].v_pointer);
2794 return GST_VALUE_LESS_THAN;
2796 return GST_VALUE_GREATER_THAN;
2799 return GST_VALUE_EQUAL;
2803 gst_string_measure_wrapping (const gchar * s)
2806 gboolean wrap = FALSE;
2808 if (G_UNLIKELY (s == NULL))
2811 /* Special case: the actual string NULL needs wrapping */
2812 if (G_UNLIKELY (strcmp (s, "NULL") == 0))
2817 if (GST_ASCII_IS_STRING (*s)) {
2819 } else if (*s < 0x20 || *s >= 0x7f) {
2829 /* Wrap the string if we found something that needs
2830 * wrapping, or the empty string (len == 0) */
2831 return (wrap || len == 0) ? len : -1;
2835 gst_string_wrap_inner (const gchar * s, gint len)
2839 e = d = g_malloc (len + 3);
2843 if (GST_ASCII_IS_STRING (*s)) {
2845 } else if (*s < 0x20 || *s >= 0x7f) {
2847 *e++ = '0' + ((*(guchar *) s) >> 6);
2848 *e++ = '0' + (((*s) >> 3) & 0x7);
2849 *e++ = '0' + ((*s++) & 0x7);
2858 g_assert (e - d <= len + 3);
2862 /* Do string wrapping/escaping */
2864 gst_string_wrap (const gchar * s)
2866 gint len = gst_string_measure_wrapping (s);
2868 if (G_LIKELY (len < 0))
2869 return g_strdup (s);
2871 return gst_string_wrap_inner (s, len);
2874 /* Same as above, but take ownership of the string */
2876 gst_string_take_and_wrap (gchar * s)
2879 gint len = gst_string_measure_wrapping (s);
2881 if (G_LIKELY (len < 0))
2884 out = gst_string_wrap_inner (s, len);
2891 * This function takes a string delimited with double quotes (")
2892 * and unescapes any \xxx octal numbers.
2894 * If sequences of \y are found where y is not in the range of
2895 * 0->3, y is copied unescaped.
2897 * If \xyy is found where x is an octal number but y is not, an
2898 * error is encountered and NULL is returned.
2900 * the input string must be \0 terminated.
2903 gst_string_unwrap (const gchar * s)
2906 gchar *read, *write;
2908 /* NULL string returns NULL */
2912 /* strings not starting with " are invalid */
2916 /* make copy of original string to hold the result. This
2917 * string will always be smaller than the original */
2922 /* need to move to the next position as we parsed the " */
2926 if (GST_ASCII_IS_STRING (*read)) {
2927 /* normal chars are just copied */
2929 } else if (*read == '"') {
2930 /* quote marks end of string */
2932 } else if (*read == '\\') {
2933 /* got an escape char, move to next position to read a tripplet
2934 * of octal numbers */
2936 /* is the next char a possible first octal number? */
2937 if (*read >= '0' && *read <= '3') {
2938 /* parse other 2 numbers, if one of them is not in the range of
2939 * an octal number, we error. We also catch the case where a zero
2940 * byte is found here. */
2941 if (read[1] < '0' || read[1] > '7' || read[2] < '0' || read[2] > '7')
2944 /* now convert the octal number to a byte again. */
2945 *write++ = ((read[0] - '0') << 6) +
2946 ((read[1] - '0') << 3) + (read[2] - '0');
2950 /* if we run into a \0 here, we definitely won't get a quote later */
2954 /* else copy \X sequence */
2958 /* weird character, error */
2962 /* if the string is not ending in " and zero terminated, we error */
2963 if (*read != '"' || read[1] != '\0')
2966 /* null terminate result string and return */
2976 gst_value_serialize_string (const GValue * value)
2978 return gst_string_wrap (value->data[0].v_pointer);
2982 gst_value_deserialize_string (GValue * dest, const gchar * s)
2984 if (G_UNLIKELY (strcmp (s, "NULL") == 0)) {
2985 g_value_set_string (dest, NULL);
2987 } else if (G_LIKELY (*s != '"')) {
2988 if (!g_utf8_validate (s, -1, NULL))
2990 g_value_set_string (dest, s);
2993 gchar *str = gst_string_unwrap (s);
2994 if (G_UNLIKELY (!str))
2996 g_value_take_string (dest, str);
3007 gst_value_compare_enum (const GValue * value1, const GValue * value2)
3009 GEnumValue *en1, *en2;
3010 GEnumClass *klass1 = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (value1));
3011 GEnumClass *klass2 = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (value2));
3013 g_return_val_if_fail (klass1, GST_VALUE_UNORDERED);
3014 g_return_val_if_fail (klass2, GST_VALUE_UNORDERED);
3015 en1 = g_enum_get_value (klass1, g_value_get_enum (value1));
3016 en2 = g_enum_get_value (klass2, g_value_get_enum (value2));
3017 g_type_class_unref (klass1);
3018 g_type_class_unref (klass2);
3019 g_return_val_if_fail (en1, GST_VALUE_UNORDERED);
3020 g_return_val_if_fail (en2, GST_VALUE_UNORDERED);
3021 if (en1->value < en2->value)
3022 return GST_VALUE_LESS_THAN;
3023 if (en1->value > en2->value)
3024 return GST_VALUE_GREATER_THAN;
3026 return GST_VALUE_EQUAL;
3030 gst_value_serialize_enum (const GValue * value)
3033 GEnumClass *klass = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (value));
3035 g_return_val_if_fail (klass, NULL);
3036 en = g_enum_get_value (klass, g_value_get_enum (value));
3037 g_type_class_unref (klass);
3039 /* might be one of the custom formats registered later */
3040 if (G_UNLIKELY (en == NULL && G_VALUE_TYPE (value) == GST_TYPE_FORMAT)) {
3041 const GstFormatDefinition *format_def;
3043 format_def = gst_format_get_details ((GstFormat) g_value_get_enum (value));
3044 g_return_val_if_fail (format_def != NULL, NULL);
3045 return g_strdup (format_def->description);
3048 g_return_val_if_fail (en, NULL);
3049 return g_strdup (en->value_name);
3053 gst_value_deserialize_enum_iter_cmp (const GValue * format_def_value,
3056 const GstFormatDefinition *format_def =
3057 g_value_get_pointer (format_def_value);
3059 if (g_ascii_strcasecmp (s, format_def->nick) == 0)
3062 return g_ascii_strcasecmp (s, format_def->description);
3066 gst_value_deserialize_enum (GValue * dest, const gchar * s)
3069 gchar *endptr = NULL;
3070 GEnumClass *klass = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (dest));
3072 g_return_val_if_fail (klass, FALSE);
3073 if (!(en = g_enum_get_value_by_name (klass, s))) {
3074 if (!(en = g_enum_get_value_by_nick (klass, s))) {
3075 gint i = strtol (s, &endptr, 0);
3077 if (endptr && *endptr == '\0') {
3078 en = g_enum_get_value (klass, i);
3082 g_type_class_unref (klass);
3084 /* might be one of the custom formats registered later */
3085 if (G_UNLIKELY (en == NULL && G_VALUE_TYPE (dest) == GST_TYPE_FORMAT)) {
3086 GValue res = { 0, };
3087 const GstFormatDefinition *format_def;
3091 iter = gst_format_iterate_definitions ();
3093 found = gst_iterator_find_custom (iter,
3094 (GCompareFunc) gst_value_deserialize_enum_iter_cmp, &res, (gpointer) s);
3097 format_def = g_value_get_pointer (&res);
3098 g_return_val_if_fail (format_def != NULL, FALSE);
3099 g_value_set_enum (dest, (gint) format_def->value);
3100 g_value_unset (&res);
3102 gst_iterator_free (iter);
3106 /* enum name/nick not found */
3110 g_value_set_enum (dest, en->value);
3118 /* we just compare the value here */
3120 gst_value_compare_flags (const GValue * value1, const GValue * value2)
3123 GFlagsClass *klass1 =
3124 (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (value1));
3125 GFlagsClass *klass2 =
3126 (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (value2));
3128 g_return_val_if_fail (klass1, GST_VALUE_UNORDERED);
3129 g_return_val_if_fail (klass2, GST_VALUE_UNORDERED);
3130 fl1 = g_value_get_flags (value1);
3131 fl2 = g_value_get_flags (value2);
3132 g_type_class_unref (klass1);
3133 g_type_class_unref (klass2);
3135 return GST_VALUE_LESS_THAN;
3137 return GST_VALUE_GREATER_THAN;
3139 return GST_VALUE_EQUAL;
3142 /* the different flags are serialized separated with a + */
3144 gst_value_serialize_flags (const GValue * value)
3148 GFlagsClass *klass = (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (value));
3149 gchar *result, *tmp;
3150 gboolean first = TRUE;
3152 g_return_val_if_fail (klass, NULL);
3154 flags = g_value_get_flags (value);
3156 /* if no flags are set, try to serialize to the _NONE string */
3158 fl = g_flags_get_first_value (klass, flags);
3160 return g_strdup (fl->value_name);
3162 return g_strdup ("0");
3165 /* some flags are set, so serialize one by one */
3166 result = g_strdup ("");
3168 fl = g_flags_get_first_value (klass, flags);
3170 tmp = g_strconcat (result, (first ? "" : "+"), fl->value_name, NULL);
3176 flags &= ~fl->value;
3179 g_type_class_unref (klass);
3185 gst_value_deserialize_flags (GValue * dest, const gchar * s)
3188 gchar *endptr = NULL;
3189 GFlagsClass *klass = (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (dest));
3194 g_return_val_if_fail (klass, FALSE);
3196 /* split into parts delimited with + */
3197 split = g_strsplit (s, "+", 0);
3201 /* loop over each part */
3203 if (!(fl = g_flags_get_value_by_name (klass, split[i]))) {
3204 if (!(fl = g_flags_get_value_by_nick (klass, split[i]))) {
3205 gint val = strtol (split[i], &endptr, 0);
3207 /* just or numeric value */
3208 if (endptr && *endptr == '\0') {
3219 g_type_class_unref (klass);
3220 g_value_set_flags (dest, flags);
3230 gst_value_is_subset_int_range_int_range (const GValue * value1,
3231 const GValue * value2)
3235 g_return_val_if_fail (GST_VALUE_HOLDS_INT_RANGE (value1), FALSE);
3236 g_return_val_if_fail (GST_VALUE_HOLDS_INT_RANGE (value2), FALSE);
3238 if (INT_RANGE_MIN (value1) * INT_RANGE_STEP (value1) <
3239 INT_RANGE_MIN (value2) * INT_RANGE_STEP (value2))
3241 if (INT_RANGE_MAX (value1) * INT_RANGE_STEP (value1) >
3242 INT_RANGE_MAX (value2) * INT_RANGE_STEP (value2))
3245 if (INT_RANGE_MIN (value2) == INT_RANGE_MAX (value2)) {
3246 if ((INT_RANGE_MIN (value2) * INT_RANGE_STEP (value2)) %
3247 INT_RANGE_STEP (value1))
3253 gst_util_greatest_common_divisor (INT_RANGE_STEP (value1),
3254 INT_RANGE_STEP (value2));
3255 if (gcd != MIN (INT_RANGE_STEP (value1), INT_RANGE_STEP (value2)))
3262 gst_value_is_subset_int64_range_int64_range (const GValue * value1,
3263 const GValue * value2)
3267 g_return_val_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value1), FALSE);
3268 g_return_val_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value2), FALSE);
3270 if (INT64_RANGE_MIN (value1) < INT64_RANGE_MIN (value2))
3272 if (INT64_RANGE_MAX (value1) > INT64_RANGE_MAX (value2))
3275 if (INT64_RANGE_MIN (value2) == INT64_RANGE_MAX (value2)) {
3276 if ((INT64_RANGE_MIN (value2) * INT64_RANGE_STEP (value2)) %
3277 INT64_RANGE_STEP (value1))
3283 gst_util_greatest_common_divisor_int64 (INT64_RANGE_STEP (value1),
3284 INT64_RANGE_STEP (value2));
3285 if (gcd != MIN (INT64_RANGE_STEP (value1), INT64_RANGE_STEP (value2)))
3292 * gst_value_is_subset:
3293 * @value1: a #GValue
3294 * @value2: a #GValue
3296 * Check that @value1 is a subset of @value2.
3298 * Return: %TRUE is @value1 is a subset of @value2
3301 gst_value_is_subset (const GValue * value1, const GValue * value2)
3303 /* special case for int/int64 ranges, since we cannot compute
3304 the difference for those when they have different steps,
3305 and it's actually a lot simpler to compute whether a range
3306 is a subset of another. */
3307 if (GST_VALUE_HOLDS_INT_RANGE (value1) && GST_VALUE_HOLDS_INT_RANGE (value2)) {
3308 return gst_value_is_subset_int_range_int_range (value1, value2);
3309 } else if (GST_VALUE_HOLDS_INT64_RANGE (value1)
3310 && GST_VALUE_HOLDS_INT64_RANGE (value2)) {
3311 return gst_value_is_subset_int64_range_int64_range (value1, value2);
3319 * -> 1 - [1,2] = empty
3323 * -> [1,2] - [1,3] = empty
3327 * -> {1,3} - {1,2} = 3
3330 * First caps subtraction needs to return a non-empty set, second
3331 * subtractions needs to give en empty set.
3332 * Both substractions are switched below, as it's faster that way.
3334 if (!gst_value_subtract (NULL, value1, value2)) {
3335 if (gst_value_subtract (NULL, value2, value1)) {
3347 gst_value_union_int_int_range (GValue * dest, const GValue * src1,
3348 const GValue * src2)
3350 gint v = src1->data[0].v_int;
3352 /* check if it's already in the range */
3353 if (INT_RANGE_MIN (src2) * INT_RANGE_STEP (src2) <= v &&
3354 INT_RANGE_MAX (src2) * INT_RANGE_STEP (src2) >= v &&
3355 v % INT_RANGE_STEP (src2) == 0) {
3357 gst_value_init_and_copy (dest, src2);
3361 /* check if it extends the range */
3362 if (v == (INT_RANGE_MIN (src2) - 1) * INT_RANGE_STEP (src2)) {
3364 gst_value_init_and_copy (dest, src2);
3365 --INT_RANGE_MIN (src2);
3369 if (v == (INT_RANGE_MAX (src2) + 1) * INT_RANGE_STEP (src2)) {
3371 gst_value_init_and_copy (dest, src2);
3372 ++INT_RANGE_MAX (src2);
3381 gst_value_union_int_range_int_range (GValue * dest, const GValue * src1,
3382 const GValue * src2)
3384 /* We can union in several special cases:
3385 1 - one is a subset of another
3386 2 - same step and not disjoint
3387 3 - different step, at least one with one value which matches a 'next' or 'previous'
3392 if (gst_value_is_subset_int_range_int_range (src1, src2)) {
3394 gst_value_init_and_copy (dest, src2);
3397 if (gst_value_is_subset_int_range_int_range (src2, src1)) {
3399 gst_value_init_and_copy (dest, src1);
3403 /* 2 - same step and not disjoint */
3404 if (INT_RANGE_STEP (src1) == INT_RANGE_STEP (src2)) {
3405 if ((INT_RANGE_MIN (src1) <= INT_RANGE_MAX (src2) + 1 &&
3406 INT_RANGE_MAX (src1) >= INT_RANGE_MIN (src2) - 1) ||
3407 (INT_RANGE_MIN (src2) <= INT_RANGE_MAX (src1) + 1 &&
3408 INT_RANGE_MAX (src2) >= INT_RANGE_MIN (src1) - 1)) {
3410 gint step = INT_RANGE_STEP (src1);
3411 gint min = step * MIN (INT_RANGE_MIN (src1), INT_RANGE_MIN (src2));
3412 gint max = step * MAX (INT_RANGE_MAX (src1), INT_RANGE_MAX (src2));
3413 g_value_init (dest, GST_TYPE_INT_RANGE);
3414 gst_value_set_int_range_step (dest, min, max, step);
3420 /* 3 - single value matches next or previous */
3421 if (INT_RANGE_STEP (src1) != INT_RANGE_STEP (src2)) {
3422 gint n1 = INT_RANGE_MAX (src1) - INT_RANGE_MIN (src1) + 1;
3423 gint n2 = INT_RANGE_MAX (src2) - INT_RANGE_MIN (src2) + 1;
3424 if (n1 == 1 || n2 == 1) {
3425 const GValue *range_value = NULL;
3429 scalar = INT_RANGE_MIN (src1) * INT_RANGE_STEP (src1);
3430 } else if (n2 == 1) {
3432 scalar = INT_RANGE_MIN (src2) * INT_RANGE_STEP (src2);
3436 (INT_RANGE_MIN (range_value) - 1) * INT_RANGE_STEP (range_value)) {
3438 gst_value_init_and_copy (dest, range_value);
3439 --INT_RANGE_MIN (range_value);
3442 } else if (scalar ==
3443 (INT_RANGE_MAX (range_value) + 1) * INT_RANGE_STEP (range_value)) {
3445 gst_value_init_and_copy (dest, range_value);
3446 ++INT_RANGE_MIN (range_value);
3453 /* If we get there, we did not find a way to make a union that can be
3454 represented with our simplistic model. */
3463 gst_value_intersect_int_int_range (GValue * dest, const GValue * src1,
3464 const GValue * src2)
3466 if (INT_RANGE_MIN (src2) * INT_RANGE_STEP (src2) <= src1->data[0].v_int &&
3467 INT_RANGE_MAX (src2) * INT_RANGE_STEP (src2) >= src1->data[0].v_int &&
3468 src1->data[0].v_int % INT_RANGE_STEP (src2) == 0) {
3470 gst_value_init_and_copy (dest, src1);
3478 gst_value_intersect_int_range_int_range (GValue * dest, const GValue * src1,
3479 const GValue * src2)
3486 INT_RANGE_STEP (src1) /
3487 gst_util_greatest_common_divisor (INT_RANGE_STEP (src1),
3488 INT_RANGE_STEP (src2));
3489 if (G_MAXINT32 / INT_RANGE_STEP (src2) < step)
3491 step *= INT_RANGE_STEP (src2);
3494 MAX (INT_RANGE_MIN (src1) * INT_RANGE_STEP (src1),
3495 INT_RANGE_MIN (src2) * INT_RANGE_STEP (src2));
3496 min = (min + step - 1) / step * step;
3498 MIN (INT_RANGE_MAX (src1) * INT_RANGE_STEP (src1),
3499 INT_RANGE_MAX (src2) * INT_RANGE_STEP (src2));
3500 max = max / step * step;
3504 g_value_init (dest, GST_TYPE_INT_RANGE);
3505 gst_value_set_int_range_step (dest, min, max, step);
3511 g_value_init (dest, G_TYPE_INT);
3512 g_value_set_int (dest, min);
3520 #define INT64_RANGE_MIN_VAL(v) (INT64_RANGE_MIN (v) * INT64_RANGE_STEP (v))
3521 #define INT64_RANGE_MAX_VAL(v) (INT64_RANGE_MAX (v) * INT64_RANGE_STEP (v))
3524 gst_value_intersect_int64_int64_range (GValue * dest, const GValue * src1,
3525 const GValue * src2)
3527 if (INT64_RANGE_MIN_VAL (src2) <= src1->data[0].v_int64 &&
3528 INT64_RANGE_MAX_VAL (src2) >= src1->data[0].v_int64 &&
3529 src1->data[0].v_int64 % INT64_RANGE_STEP (src2) == 0) {
3531 gst_value_init_and_copy (dest, src1);
3539 gst_value_intersect_int64_range_int64_range (GValue * dest, const GValue * src1,
3540 const GValue * src2)
3547 INT64_RANGE_STEP (src1) /
3548 gst_util_greatest_common_divisor_int64 (INT64_RANGE_STEP (src1),
3549 INT64_RANGE_STEP (src2));
3550 if (G_MAXINT64 / INT64_RANGE_STEP (src2) < step)
3552 step *= INT64_RANGE_STEP (src2);
3555 MAX (INT64_RANGE_MIN (src1) * INT64_RANGE_STEP (src1),
3556 INT64_RANGE_MIN (src2) * INT64_RANGE_STEP (src2));
3557 min = (min + step - 1) / step * step;
3559 MIN (INT64_RANGE_MAX (src1) * INT64_RANGE_STEP (src1),
3560 INT64_RANGE_MAX (src2) * INT64_RANGE_STEP (src2));
3561 max = max / step * step;
3565 g_value_init (dest, GST_TYPE_INT64_RANGE);
3566 gst_value_set_int64_range_step (dest, min, max, step);
3572 g_value_init (dest, G_TYPE_INT64);
3573 g_value_set_int64 (dest, min);
3582 gst_value_intersect_double_double_range (GValue * dest, const GValue * src1,
3583 const GValue * src2)
3585 if (src2->data[0].v_double <= src1->data[0].v_double &&
3586 src2->data[1].v_double >= src1->data[0].v_double) {
3588 gst_value_init_and_copy (dest, src1);
3596 gst_value_intersect_double_range_double_range (GValue * dest,
3597 const GValue * src1, const GValue * src2)
3602 min = MAX (src1->data[0].v_double, src2->data[0].v_double);
3603 max = MIN (src1->data[1].v_double, src2->data[1].v_double);
3607 g_value_init (dest, GST_TYPE_DOUBLE_RANGE);
3608 gst_value_set_double_range (dest, min, max);
3614 g_value_init (dest, G_TYPE_DOUBLE);
3615 g_value_set_int (dest, (int) min);
3624 gst_value_intersect_list (GValue * dest, const GValue * value1,
3625 const GValue * value2)
3628 GValue intersection = { 0, };
3629 gboolean ret = FALSE;
3631 size = VALUE_LIST_SIZE (value1);
3632 for (i = 0; i < size; i++) {
3633 const GValue *cur = VALUE_LIST_GET_VALUE (value1, i);
3635 /* quicker version when we don't need the resulting set */
3637 if (gst_value_intersect (NULL, cur, value2)) {
3644 if (gst_value_intersect (&intersection, cur, value2)) {
3647 gst_value_move (dest, &intersection);
3649 } else if (GST_VALUE_HOLDS_LIST (dest)) {
3650 _gst_value_list_append_and_take_value (dest, &intersection);
3654 gst_value_move (&temp, dest);
3655 gst_value_list_merge (dest, &temp, &intersection);
3656 g_value_unset (&temp);
3657 g_value_unset (&intersection);
3666 gst_value_intersect_array (GValue * dest, const GValue * src1,
3667 const GValue * src2)
3673 /* only works on similar-sized arrays */
3674 size = gst_value_array_get_size (src1);
3675 if (size != gst_value_array_get_size (src2))
3678 /* quicker value when we don't need the resulting set */
3680 for (n = 0; n < size; n++) {
3681 if (!gst_value_intersect (NULL, gst_value_array_get_value (src1, n),
3682 gst_value_array_get_value (src2, n))) {
3689 g_value_init (dest, GST_TYPE_ARRAY);
3691 for (n = 0; n < size; n++) {
3692 if (!gst_value_intersect (&val, gst_value_array_get_value (src1, n),
3693 gst_value_array_get_value (src2, n))) {
3694 g_value_unset (dest);
3697 _gst_value_array_append_and_take_value (dest, &val);
3704 gst_value_intersect_fraction_fraction_range (GValue * dest, const GValue * src1,
3705 const GValue * src2)
3709 GstValueCompareFunc compare;
3711 vals = src2->data[0].v_pointer;
3716 if ((compare = gst_value_get_compare_func (src1))) {
3717 res1 = gst_value_compare_with_func (&vals[0], src1, compare);
3718 res2 = gst_value_compare_with_func (&vals[1], src1, compare);
3720 if ((res1 == GST_VALUE_EQUAL || res1 == GST_VALUE_LESS_THAN) &&
3721 (res2 == GST_VALUE_EQUAL || res2 == GST_VALUE_GREATER_THAN)) {
3723 gst_value_init_and_copy (dest, src1);
3732 gst_value_intersect_fraction_range_fraction_range (GValue * dest,
3733 const GValue * src1, const GValue * src2)
3738 GValue *vals1, *vals2;
3739 GstValueCompareFunc compare;
3741 vals1 = src1->data[0].v_pointer;
3742 vals2 = src2->data[0].v_pointer;
3743 g_return_val_if_fail (vals1 != NULL && vals2 != NULL, FALSE);
3745 if ((compare = gst_value_get_compare_func (&vals1[0]))) {
3746 /* min = MAX (src1.start, src2.start) */
3747 res = gst_value_compare_with_func (&vals1[0], &vals2[0], compare);
3748 g_return_val_if_fail (res != GST_VALUE_UNORDERED, FALSE);
3749 if (res == GST_VALUE_LESS_THAN)
3750 min = &vals2[0]; /* Take the max of the 2 */
3754 /* max = MIN (src1.end, src2.end) */
3755 res = gst_value_compare_with_func (&vals1[1], &vals2[1], compare);
3756 g_return_val_if_fail (res != GST_VALUE_UNORDERED, FALSE);
3757 if (res == GST_VALUE_GREATER_THAN)
3758 max = &vals2[1]; /* Take the min of the 2 */
3762 res = gst_value_compare_with_func (min, max, compare);
3763 g_return_val_if_fail (res != GST_VALUE_UNORDERED, FALSE);
3764 if (res == GST_VALUE_LESS_THAN) {
3766 g_value_init (dest, GST_TYPE_FRACTION_RANGE);
3767 vals1 = dest->data[0].v_pointer;
3768 g_value_copy (min, &vals1[0]);
3769 g_value_copy (max, &vals1[1]);
3773 if (res == GST_VALUE_EQUAL) {
3775 gst_value_init_and_copy (dest, min);
3788 gst_value_subtract_int_int_range (GValue * dest, const GValue * minuend,
3789 const GValue * subtrahend)
3791 gint min = gst_value_get_int_range_min (subtrahend);
3792 gint max = gst_value_get_int_range_max (subtrahend);
3793 gint step = gst_value_get_int_range_step (subtrahend);
3794 gint val = g_value_get_int (minuend);
3799 /* subtracting a range from an int only works if the int is not in the
3801 if (val < min || val > max || val % step) {
3802 /* and the result is the int */
3804 gst_value_init_and_copy (dest, minuend);
3810 /* creates a new int range based on input values.
3813 gst_value_create_new_range (GValue * dest, gint min1, gint max1, gint min2,
3814 gint max2, gint step)
3818 GValue *pv1, *pv2; /* yeah, hungarian! */
3820 g_return_val_if_fail (step > 0, FALSE);
3821 g_return_val_if_fail (min1 % step == 0, FALSE);
3822 g_return_val_if_fail (max1 % step == 0, FALSE);
3823 g_return_val_if_fail (min2 % step == 0, FALSE);
3824 g_return_val_if_fail (max2 % step == 0, FALSE);
3826 if (min1 <= max1 && min2 <= max2) {
3829 } else if (min1 <= max1) {
3832 } else if (min2 <= max2) {
3843 g_value_init (pv1, GST_TYPE_INT_RANGE);
3844 gst_value_set_int_range_step (pv1, min1, max1, step);
3845 } else if (min1 == max1) {
3846 g_value_init (pv1, G_TYPE_INT);
3847 g_value_set_int (pv1, min1);
3850 g_value_init (pv2, GST_TYPE_INT_RANGE);
3851 gst_value_set_int_range_step (pv2, min2, max2, step);
3852 } else if (min2 == max2) {
3853 g_value_init (pv2, G_TYPE_INT);
3854 g_value_set_int (pv2, min2);
3857 if (min1 <= max1 && min2 <= max2) {
3858 gst_value_list_concat (dest, pv1, pv2);
3859 g_value_unset (pv1);
3860 g_value_unset (pv2);
3866 gst_value_subtract_int_range_int (GValue * dest, const GValue * minuend,
3867 const GValue * subtrahend)
3869 gint min = gst_value_get_int_range_min (minuend);
3870 gint max = gst_value_get_int_range_max (minuend);
3871 gint step = gst_value_get_int_range_step (minuend);
3872 gint val = g_value_get_int (subtrahend);
3874 g_return_val_if_fail (min < max, FALSE);
3879 /* value is outside of the range, return range unchanged */
3880 if (val < min || val > max || val % step) {
3882 gst_value_init_and_copy (dest, minuend);
3885 /* max must be MAXINT too as val <= max */
3886 if (val >= G_MAXINT - step + 1) {
3890 /* min must be MININT too as val >= max */
3891 if (val <= G_MININT + step - 1) {
3896 gst_value_create_new_range (dest, min, val - step, val + step, max, step);
3902 gst_value_subtract_int_range_int_range (GValue * dest, const GValue * minuend,
3903 const GValue * subtrahend)
3905 gint min1 = gst_value_get_int_range_min (minuend);
3906 gint max1 = gst_value_get_int_range_max (minuend);
3907 gint step1 = gst_value_get_int_range_step (minuend);
3908 gint min2 = gst_value_get_int_range_min (subtrahend);
3909 gint max2 = gst_value_get_int_range_max (subtrahend);
3910 gint step2 = gst_value_get_int_range_step (subtrahend);
3913 if (step1 != step2) {
3923 if (max2 >= max1 && min2 <= min1) {
3925 } else if (max2 >= max1) {
3926 return gst_value_create_new_range (dest, min1, MIN (min2 - step, max1),
3928 } else if (min2 <= min1) {
3929 return gst_value_create_new_range (dest, MAX (max2 + step, min1), max1,
3932 return gst_value_create_new_range (dest, min1, MIN (min2 - step, max1),
3933 MAX (max2 + step, min1), max1, step);
3938 gst_value_subtract_int64_int64_range (GValue * dest, const GValue * minuend,
3939 const GValue * subtrahend)
3941 gint64 min = gst_value_get_int64_range_min (subtrahend);
3942 gint64 max = gst_value_get_int64_range_max (subtrahend);
3943 gint64 step = gst_value_get_int64_range_step (subtrahend);
3944 gint64 val = g_value_get_int64 (minuend);
3948 /* subtracting a range from an int64 only works if the int64 is not in the
3950 if (val < min || val > max || val % step) {
3951 /* and the result is the int64 */
3953 gst_value_init_and_copy (dest, minuend);
3959 /* creates a new int64 range based on input values.
3962 gst_value_create_new_int64_range (GValue * dest, gint64 min1, gint64 max1,
3963 gint64 min2, gint64 max2, gint64 step)
3967 GValue *pv1, *pv2; /* yeah, hungarian! */
3969 g_return_val_if_fail (step > 0, FALSE);
3970 g_return_val_if_fail (min1 % step == 0, FALSE);
3971 g_return_val_if_fail (max1 % step == 0, FALSE);
3972 g_return_val_if_fail (min2 % step == 0, FALSE);
3973 g_return_val_if_fail (max2 % step == 0, FALSE);
3975 if (min1 <= max1 && min2 <= max2) {
3978 } else if (min1 <= max1) {
3981 } else if (min2 <= max2) {
3992 g_value_init (pv1, GST_TYPE_INT64_RANGE);
3993 gst_value_set_int64_range_step (pv1, min1, max1, step);
3994 } else if (min1 == max1) {
3995 g_value_init (pv1, G_TYPE_INT64);
3996 g_value_set_int64 (pv1, min1);
3999 g_value_init (pv2, GST_TYPE_INT64_RANGE);
4000 gst_value_set_int64_range_step (pv2, min2, max2, step);
4001 } else if (min2 == max2) {
4002 g_value_init (pv2, G_TYPE_INT64);
4003 g_value_set_int64 (pv2, min2);
4006 if (min1 <= max1 && min2 <= max2) {
4007 gst_value_list_concat (dest, pv1, pv2);
4008 g_value_unset (pv1);
4009 g_value_unset (pv2);
4015 gst_value_subtract_int64_range_int64 (GValue * dest, const GValue * minuend,
4016 const GValue * subtrahend)
4018 gint64 min = gst_value_get_int64_range_min (minuend);
4019 gint64 max = gst_value_get_int64_range_max (minuend);
4020 gint64 step = gst_value_get_int64_range_step (minuend);
4021 gint64 val = g_value_get_int64 (subtrahend);
4023 g_return_val_if_fail (min < max, FALSE);
4028 /* value is outside of the range, return range unchanged */
4029 if (val < min || val > max || val % step) {
4031 gst_value_init_and_copy (dest, minuend);
4034 /* max must be MAXINT64 too as val <= max */
4035 if (val >= G_MAXINT64 - step + 1) {
4039 /* min must be MININT64 too as val >= max */
4040 if (val <= G_MININT64 + step - 1) {
4045 gst_value_create_new_int64_range (dest, min, val - step, val + step, max,
4052 gst_value_subtract_int64_range_int64_range (GValue * dest,
4053 const GValue * minuend, const GValue * subtrahend)
4055 gint64 min1 = gst_value_get_int64_range_min (minuend);
4056 gint64 max1 = gst_value_get_int64_range_max (minuend);
4057 gint64 step1 = gst_value_get_int64_range_step (minuend);
4058 gint64 min2 = gst_value_get_int64_range_min (subtrahend);
4059 gint64 max2 = gst_value_get_int64_range_max (subtrahend);
4060 gint64 step2 = gst_value_get_int64_range_step (subtrahend);
4063 if (step1 != step2) {
4074 if (max2 >= max1 && min2 <= min1) {
4076 } else if (max2 >= max1) {
4077 return gst_value_create_new_int64_range (dest, min1, MIN (min2 - step,
4078 max1), step, 0, step);
4079 } else if (min2 <= min1) {
4080 return gst_value_create_new_int64_range (dest, MAX (max2 + step, min1),
4081 max1, step, 0, step);
4083 return gst_value_create_new_int64_range (dest, min1, MIN (min2 - step,
4084 max1), MAX (max2 + step, min1), max1, step);
4089 gst_value_subtract_double_double_range (GValue * dest, const GValue * minuend,
4090 const GValue * subtrahend)
4092 gdouble min = gst_value_get_double_range_min (subtrahend);
4093 gdouble max = gst_value_get_double_range_max (subtrahend);
4094 gdouble val = g_value_get_double (minuend);
4096 if (val < min || val > max) {
4098 gst_value_init_and_copy (dest, minuend);
4105 gst_value_subtract_double_range_double (GValue * dest, const GValue * minuend,
4106 const GValue * subtrahend)
4108 /* since we don't have open ranges, we cannot create a hole in
4109 * a double range. We return the original range */
4111 gst_value_init_and_copy (dest, minuend);
4116 gst_value_subtract_double_range_double_range (GValue * dest,
4117 const GValue * minuend, const GValue * subtrahend)
4119 /* since we don't have open ranges, we have to approximate */
4120 /* done like with ints */
4121 gdouble min1 = gst_value_get_double_range_min (minuend);
4122 gdouble max2 = gst_value_get_double_range_max (minuend);
4123 gdouble max1 = MIN (gst_value_get_double_range_min (subtrahend), max2);
4124 gdouble min2 = MAX (gst_value_get_double_range_max (subtrahend), min1);
4127 GValue *pv1, *pv2; /* yeah, hungarian! */
4129 if (min1 < max1 && min2 < max2) {
4132 } else if (min1 < max1) {
4135 } else if (min2 < max2) {
4146 g_value_init (pv1, GST_TYPE_DOUBLE_RANGE);
4147 gst_value_set_double_range (pv1, min1, max1);
4150 g_value_init (pv2, GST_TYPE_DOUBLE_RANGE);
4151 gst_value_set_double_range (pv2, min2, max2);
4154 if (min1 < max1 && min2 < max2) {
4155 gst_value_list_concat (dest, pv1, pv2);
4156 g_value_unset (pv1);
4157 g_value_unset (pv2);
4163 gst_value_subtract_from_list (GValue * dest, const GValue * minuend,
4164 const GValue * subtrahend)
4167 GValue subtraction = { 0, };
4168 gboolean ret = FALSE;
4171 ltype = gst_value_list_get_type ();
4173 size = VALUE_LIST_SIZE (minuend);
4174 for (i = 0; i < size; i++) {
4175 const GValue *cur = VALUE_LIST_GET_VALUE (minuend, i);
4177 /* quicker version when we can discard the result */
4179 if (gst_value_subtract (NULL, cur, subtrahend)) {
4186 if (gst_value_subtract (&subtraction, cur, subtrahend)) {
4188 gst_value_move (dest, &subtraction);
4190 } else if (G_VALUE_HOLDS (dest, ltype)
4191 && !G_VALUE_HOLDS (&subtraction, ltype)) {
4192 _gst_value_list_append_and_take_value (dest, &subtraction);
4196 gst_value_move (&temp, dest);
4197 gst_value_list_concat (dest, &temp, &subtraction);
4198 g_value_unset (&temp);
4199 g_value_unset (&subtraction);
4207 gst_value_subtract_list (GValue * dest, const GValue * minuend,
4208 const GValue * subtrahend)
4211 GValue data[2] = { {0,}, {0,} };
4212 GValue *subtraction = &data[0], *result = &data[1];
4214 gst_value_init_and_copy (result, minuend);
4215 size = VALUE_LIST_SIZE (subtrahend);
4216 for (i = 0; i < size; i++) {
4217 const GValue *cur = VALUE_LIST_GET_VALUE (subtrahend, i);
4219 if (gst_value_subtract (subtraction, result, cur)) {
4220 GValue *temp = result;
4222 result = subtraction;
4224 g_value_unset (subtraction);
4226 g_value_unset (result);
4231 gst_value_move (dest, result);
4233 g_value_unset (result);
4239 gst_value_subtract_fraction_fraction_range (GValue * dest,
4240 const GValue * minuend, const GValue * subtrahend)
4242 const GValue *min = gst_value_get_fraction_range_min (subtrahend);
4243 const GValue *max = gst_value_get_fraction_range_max (subtrahend);
4244 GstValueCompareFunc compare;
4246 if ((compare = gst_value_get_compare_func (minuend))) {
4247 /* subtracting a range from an fraction only works if the fraction
4248 * is not in the range */
4249 if (gst_value_compare_with_func (minuend, min, compare) ==
4250 GST_VALUE_LESS_THAN ||
4251 gst_value_compare_with_func (minuend, max, compare) ==
4252 GST_VALUE_GREATER_THAN) {
4253 /* and the result is the value */
4255 gst_value_init_and_copy (dest, minuend);
4263 gst_value_subtract_fraction_range_fraction (GValue * dest,
4264 const GValue * minuend, const GValue * subtrahend)
4266 /* since we don't have open ranges, we cannot create a hole in
4267 * a range. We return the original range */
4269 gst_value_init_and_copy (dest, minuend);
4274 gst_value_subtract_fraction_range_fraction_range (GValue * dest,
4275 const GValue * minuend, const GValue * subtrahend)
4277 /* since we don't have open ranges, we have to approximate */
4278 /* done like with ints and doubles. Creates a list of 2 fraction ranges */
4279 const GValue *min1 = gst_value_get_fraction_range_min (minuend);
4280 const GValue *max2 = gst_value_get_fraction_range_max (minuend);
4281 const GValue *max1 = gst_value_get_fraction_range_min (subtrahend);
4282 const GValue *min2 = gst_value_get_fraction_range_max (subtrahend);
4286 GValue *pv1, *pv2; /* yeah, hungarian! */
4287 GstValueCompareFunc compare;
4289 g_return_val_if_fail (min1 != NULL && max1 != NULL, FALSE);
4290 g_return_val_if_fail (min2 != NULL && max2 != NULL, FALSE);
4292 compare = gst_value_get_compare_func (min1);
4293 g_return_val_if_fail (compare, FALSE);
4295 cmp1 = gst_value_compare_with_func (max2, max1, compare);
4296 g_return_val_if_fail (cmp1 != GST_VALUE_UNORDERED, FALSE);
4297 if (cmp1 == GST_VALUE_LESS_THAN)
4299 cmp1 = gst_value_compare_with_func (min1, min2, compare);
4300 g_return_val_if_fail (cmp1 != GST_VALUE_UNORDERED, FALSE);
4301 if (cmp1 == GST_VALUE_GREATER_THAN)
4304 cmp1 = gst_value_compare_with_func (min1, max1, compare);
4305 cmp2 = gst_value_compare_with_func (min2, max2, compare);
4307 if (cmp1 == GST_VALUE_LESS_THAN && cmp2 == GST_VALUE_LESS_THAN) {
4310 } else if (cmp1 == GST_VALUE_LESS_THAN) {
4313 } else if (cmp2 == GST_VALUE_LESS_THAN) {
4323 if (cmp1 == GST_VALUE_LESS_THAN) {
4324 g_value_init (pv1, GST_TYPE_FRACTION_RANGE);
4325 gst_value_set_fraction_range (pv1, min1, max1);
4327 if (cmp2 == GST_VALUE_LESS_THAN) {
4328 g_value_init (pv2, GST_TYPE_FRACTION_RANGE);
4329 gst_value_set_fraction_range (pv2, min2, max2);
4332 if (cmp1 == GST_VALUE_LESS_THAN && cmp2 == GST_VALUE_LESS_THAN) {
4333 gst_value_list_concat (dest, pv1, pv2);
4334 g_value_unset (pv1);
4335 g_value_unset (pv2);
4346 * gst_value_get_compare_func:
4347 * @value1: a value to get the compare function for
4349 * Determines the compare function to be used with values of the same type as
4350 * @value1. The function can be given to gst_value_compare_with_func().
4352 * Returns: A #GstValueCompareFunc value
4354 static GstValueCompareFunc
4355 gst_value_get_compare_func (const GValue * value1)
4357 GstValueTable *table, *best = NULL;
4361 type1 = G_VALUE_TYPE (value1);
4363 /* this is a fast check */
4364 best = gst_value_hash_lookup_type (type1);
4367 if (G_UNLIKELY (!best || !best->compare)) {
4368 guint len = gst_value_table->len;
4371 for (i = 0; i < len; i++) {
4372 table = &g_array_index (gst_value_table, GstValueTable, i);
4373 if (table->compare && g_type_is_a (type1, table->type)) {
4374 if (!best || g_type_is_a (table->type, best->type))
4379 if (G_LIKELY (best))
4380 return best->compare;
4386 * gst_value_can_compare:
4387 * @value1: a value to compare
4388 * @value2: another value to compare
4390 * Determines if @value1 and @value2 can be compared.
4392 * Returns: TRUE if the values can be compared
4395 gst_value_can_compare (const GValue * value1, const GValue * value2)
4397 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
4398 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
4400 if (G_VALUE_TYPE (value1) != G_VALUE_TYPE (value2))
4403 return gst_value_get_compare_func (value1) != NULL;
4407 gst_value_list_equals_range (const GValue * list, const GValue * value)
4409 const GValue *first;
4412 g_return_val_if_fail (G_IS_VALUE (list), FALSE);
4413 g_return_val_if_fail (G_IS_VALUE (value), FALSE);
4414 g_return_val_if_fail (GST_VALUE_HOLDS_LIST (list), FALSE);
4416 /* TODO: compare against an empty list ? No type though... */
4417 list_size = VALUE_LIST_SIZE (list);
4421 /* compare the basic types - they have to match */
4422 first = VALUE_LIST_GET_VALUE (list, 0);
4423 #define CHECK_TYPES(type,prefix) \
4424 (prefix##_VALUE_HOLDS_##type(first) && GST_VALUE_HOLDS_##type##_RANGE (value))
4425 if (CHECK_TYPES (INT, G)) {
4426 const gint rmin = gst_value_get_int_range_min (value);
4427 const gint rmax = gst_value_get_int_range_max (value);
4428 const gint rstep = gst_value_get_int_range_step (value);
4431 /* note: this will overflow for min 0 and max INT_MAX, but this
4432 would only be equal to a list of INT_MAX elements, which seems
4434 if (list_size != rmax / rstep - rmin / rstep + 1)
4436 for (n = 0; n < list_size; ++n) {
4437 gint v = g_value_get_int (VALUE_LIST_GET_VALUE (list, n));
4438 if (v < rmin || v > rmax || v % rstep) {
4443 } else if (CHECK_TYPES (INT64, G)) {
4444 const gint64 rmin = gst_value_get_int64_range_min (value);
4445 const gint64 rmax = gst_value_get_int64_range_max (value);
4446 const gint64 rstep = gst_value_get_int64_range_step (value);
4447 GST_DEBUG ("List/range of int64s");
4450 if (list_size != rmax / rstep - rmin / rstep + 1)
4452 for (n = 0; n < list_size; ++n) {
4453 gint64 v = g_value_get_int64 (VALUE_LIST_GET_VALUE (list, n));
4454 if (v < rmin || v > rmax || v % rstep)
4461 /* other combinations don't make sense for equality */
4466 * gst_value_compare:
4467 * @value1: a value to compare
4468 * @value2: another value to compare
4470 * Compares @value1 and @value2. If @value1 and @value2 cannot be
4471 * compared, the function returns GST_VALUE_UNORDERED. Otherwise,
4472 * if @value1 is greater than @value2, GST_VALUE_GREATER_THAN is returned.
4473 * If @value1 is less than @value2, GST_VALUE_LESS_THAN is returned.
4474 * If the values are equal, GST_VALUE_EQUAL is returned.
4476 * Returns: comparison result
4479 gst_value_compare (const GValue * value1, const GValue * value2)
4481 GstValueCompareFunc compare;
4484 g_return_val_if_fail (G_IS_VALUE (value1), GST_VALUE_LESS_THAN);
4485 g_return_val_if_fail (G_IS_VALUE (value2), GST_VALUE_GREATER_THAN);
4487 /* Special cases: lists and scalar values ("{ 1 }" and "1" are equal),
4488 as well as lists and ranges ("{ 1, 2 }" and "[ 1, 2 ]" are equal) */
4489 ltype = gst_value_list_get_type ();
4490 if (G_VALUE_HOLDS (value1, ltype) && !G_VALUE_HOLDS (value2, ltype)) {
4493 if (gst_value_list_equals_range (value1, value2)) {
4494 return GST_VALUE_EQUAL;
4497 n = gst_value_list_get_size (value1);
4499 return GST_VALUE_UNORDERED;
4501 for (i = 0; i < n; i++) {
4504 elt = gst_value_list_get_value (value1, i);
4505 ret = gst_value_compare (elt, value2);
4506 if (ret != GST_VALUE_EQUAL && n == 1)
4508 else if (ret != GST_VALUE_EQUAL)
4509 return GST_VALUE_UNORDERED;
4512 return GST_VALUE_EQUAL;
4513 } else if (G_VALUE_HOLDS (value2, ltype) && !G_VALUE_HOLDS (value1, ltype)) {
4516 if (gst_value_list_equals_range (value2, value1)) {
4517 return GST_VALUE_EQUAL;
4520 n = gst_value_list_get_size (value2);
4522 return GST_VALUE_UNORDERED;
4524 for (i = 0; i < n; i++) {
4527 elt = gst_value_list_get_value (value2, i);
4528 ret = gst_value_compare (elt, value1);
4529 if (ret != GST_VALUE_EQUAL && n == 1)
4531 else if (ret != GST_VALUE_EQUAL)
4532 return GST_VALUE_UNORDERED;
4535 return GST_VALUE_EQUAL;
4538 if (G_VALUE_TYPE (value1) != G_VALUE_TYPE (value2))
4539 return GST_VALUE_UNORDERED;
4541 compare = gst_value_get_compare_func (value1);
4543 return compare (value1, value2);
4546 g_critical ("unable to compare values of type %s\n",
4547 g_type_name (G_VALUE_TYPE (value1)));
4548 return GST_VALUE_UNORDERED;
4552 * gst_value_compare_with_func:
4553 * @value1: a value to compare
4554 * @value2: another value to compare
4555 * @compare: compare function
4557 * Compares @value1 and @value2 using the @compare function. Works like
4558 * gst_value_compare() but allows to save time determining the compare function
4561 * Returns: comparison result
4564 gst_value_compare_with_func (const GValue * value1, const GValue * value2,
4565 GstValueCompareFunc compare)
4569 if (G_VALUE_TYPE (value1) != G_VALUE_TYPE (value2))
4570 return GST_VALUE_UNORDERED;
4572 return compare (value1, value2);
4578 * gst_value_can_union:
4579 * @value1: a value to union
4580 * @value2: another value to union
4582 * Determines if @value1 and @value2 can be non-trivially unioned.
4583 * Any two values can be trivially unioned by adding both of them
4584 * to a GstValueList. However, certain types have the possibility
4585 * to be unioned in a simpler way. For example, an integer range
4586 * and an integer can be unioned if the integer is a subset of the
4587 * integer range. If there is the possibility that two values can
4588 * be unioned, this function returns TRUE.
4590 * Returns: TRUE if there is a function allowing the two values to
4594 gst_value_can_union (const GValue * value1, const GValue * value2)
4596 GstValueUnionInfo *union_info;
4599 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
4600 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
4602 len = gst_value_union_funcs->len;
4604 for (i = 0; i < len; i++) {
4605 union_info = &g_array_index (gst_value_union_funcs, GstValueUnionInfo, i);
4606 if (union_info->type1 == G_VALUE_TYPE (value1) &&
4607 union_info->type2 == G_VALUE_TYPE (value2))
4609 if (union_info->type1 == G_VALUE_TYPE (value2) &&
4610 union_info->type2 == G_VALUE_TYPE (value1))
4619 * @dest: (out caller-allocates): the destination value
4620 * @value1: a value to union
4621 * @value2: another value to union
4623 * Creates a GValue corresponding to the union of @value1 and @value2.
4625 * Returns: TRUE if the union succeeded.
4628 gst_value_union (GValue * dest, const GValue * value1, const GValue * value2)
4630 const GstValueUnionInfo *union_info;
4634 g_return_val_if_fail (dest != NULL, FALSE);
4635 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
4636 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
4637 g_return_val_if_fail (gst_value_list_or_array_are_compatible (value1, value2),
4640 len = gst_value_union_funcs->len;
4641 type1 = G_VALUE_TYPE (value1);
4642 type2 = G_VALUE_TYPE (value2);
4644 for (i = 0; i < len; i++) {
4645 union_info = &g_array_index (gst_value_union_funcs, GstValueUnionInfo, i);
4646 if (union_info->type1 == type1 && union_info->type2 == type2) {
4647 return union_info->func (dest, value1, value2);
4649 if (union_info->type1 == type2 && union_info->type2 == type1) {
4650 return union_info->func (dest, value2, value1);
4654 gst_value_list_concat (dest, value1, value2);
4658 /* gst_value_register_union_func: (skip)
4659 * @type1: a type to union
4660 * @type2: another type to union
4661 * @func: a function that implements creating a union between the two types
4663 * Registers a union function that can create a union between #GValue items
4664 * of the type @type1 and @type2.
4666 * Union functions should be registered at startup before any pipelines are
4667 * started, as gst_value_register_union_func() is not thread-safe and cannot
4668 * be used at the same time as gst_value_union() or gst_value_can_union().
4671 gst_value_register_union_func (GType type1, GType type2, GstValueUnionFunc func)
4673 GstValueUnionInfo union_info;
4675 union_info.type1 = type1;
4676 union_info.type2 = type2;
4677 union_info.func = func;
4679 g_array_append_val (gst_value_union_funcs, union_info);
4685 * gst_value_can_intersect:
4686 * @value1: a value to intersect
4687 * @value2: another value to intersect
4689 * Determines if intersecting two values will produce a valid result.
4690 * Two values will produce a valid intersection if they have the same
4693 * Returns: TRUE if the values can intersect
4696 gst_value_can_intersect (const GValue * value1, const GValue * value2)
4698 GstValueIntersectInfo *intersect_info;
4700 GType ltype, type1, type2;
4702 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
4703 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
4705 ltype = gst_value_list_get_type ();
4708 if (G_VALUE_HOLDS (value1, ltype) || G_VALUE_HOLDS (value2, ltype))
4711 type1 = G_VALUE_TYPE (value1);
4712 type2 = G_VALUE_TYPE (value2);
4714 /* practically all GstValue types have a compare function (_can_compare=TRUE)
4715 * GstStructure and GstCaps have npot, but are intersectable */
4719 /* check registered intersect functions */
4720 len = gst_value_intersect_funcs->len;
4721 for (i = 0; i < len; i++) {
4722 intersect_info = &g_array_index (gst_value_intersect_funcs,
4723 GstValueIntersectInfo, i);
4724 if ((intersect_info->type1 == type1 && intersect_info->type2 == type2) ||
4725 (intersect_info->type1 == type2 && intersect_info->type2 == type1))
4729 return gst_value_can_compare (value1, value2);
4733 * gst_value_intersect:
4734 * @dest: (out caller-allocates) (transfer full): a uninitialized #GValue that will hold the calculated
4735 * intersection value. May be NULL if the resulting set if not needed.
4736 * @value1: a value to intersect
4737 * @value2: another value to intersect
4739 * Calculates the intersection of two values. If the values have
4740 * a non-empty intersection, the value representing the intersection
4741 * is placed in @dest, unless NULL. If the intersection is non-empty,
4742 * @dest is not modified.
4744 * Returns: TRUE if the intersection is non-empty
4747 gst_value_intersect (GValue * dest, const GValue * value1,
4748 const GValue * value2)
4750 GstValueIntersectInfo *intersect_info;
4752 GType ltype, type1, type2;
4754 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
4755 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
4757 ltype = gst_value_list_get_type ();
4759 /* special cases first */
4760 if (G_VALUE_HOLDS (value1, ltype))
4761 return gst_value_intersect_list (dest, value1, value2);
4762 if (G_VALUE_HOLDS (value2, ltype))
4763 return gst_value_intersect_list (dest, value2, value1);
4765 if (gst_value_compare (value1, value2) == GST_VALUE_EQUAL) {
4767 gst_value_init_and_copy (dest, value1);
4771 type1 = G_VALUE_TYPE (value1);
4772 type2 = G_VALUE_TYPE (value2);
4774 len = gst_value_intersect_funcs->len;
4775 for (i = 0; i < len; i++) {
4776 intersect_info = &g_array_index (gst_value_intersect_funcs,
4777 GstValueIntersectInfo, i);
4778 if (intersect_info->type1 == type1 && intersect_info->type2 == type2) {
4779 return intersect_info->func (dest, value1, value2);
4781 if (intersect_info->type1 == type2 && intersect_info->type2 == type1) {
4782 return intersect_info->func (dest, value2, value1);
4790 /* gst_value_register_intersect_func: (skip)
4791 * @type1: the first type to intersect
4792 * @type2: the second type to intersect
4793 * @func: the intersection function
4795 * Registers a function that is called to calculate the intersection
4796 * of the values having the types @type1 and @type2.
4798 * Intersect functions should be registered at startup before any pipelines are
4799 * started, as gst_value_register_intersect_func() is not thread-safe and
4800 * cannot be used at the same time as gst_value_intersect() or
4801 * gst_value_can_intersect().
4804 gst_value_register_intersect_func (GType type1, GType type2,
4805 GstValueIntersectFunc func)
4807 GstValueIntersectInfo intersect_info;
4809 intersect_info.type1 = type1;
4810 intersect_info.type2 = type2;
4811 intersect_info.func = func;
4813 g_array_append_val (gst_value_intersect_funcs, intersect_info);
4820 * gst_value_subtract:
4821 * @dest: (out caller-allocates): the destination value for the result if the
4822 * subtraction is not empty. May be NULL, in which case the resulting set
4823 * will not be computed, which can give a fair speedup.
4824 * @minuend: the value to subtract from
4825 * @subtrahend: the value to subtract
4827 * Subtracts @subtrahend from @minuend and stores the result in @dest.
4828 * Note that this means subtraction as in sets, not as in mathematics.
4830 * Returns: %TRUE if the subtraction is not empty
4833 gst_value_subtract (GValue * dest, const GValue * minuend,
4834 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 ();
4845 /* special cases first */
4846 if (G_VALUE_HOLDS (minuend, ltype))
4847 return gst_value_subtract_from_list (dest, minuend, subtrahend);
4848 if (G_VALUE_HOLDS (subtrahend, ltype))
4849 return gst_value_subtract_list (dest, minuend, subtrahend);
4851 mtype = G_VALUE_TYPE (minuend);
4852 stype = G_VALUE_TYPE (subtrahend);
4854 len = gst_value_subtract_funcs->len;
4855 for (i = 0; i < len; i++) {
4856 info = &g_array_index (gst_value_subtract_funcs, GstValueSubtractInfo, i);
4857 if (info->minuend == mtype && info->subtrahend == stype) {
4858 return info->func (dest, minuend, subtrahend);
4862 if (gst_value_compare (minuend, subtrahend) != GST_VALUE_EQUAL) {
4864 gst_value_init_and_copy (dest, minuend);
4873 gst_value_subtract (GValue * dest, const GValue * minuend,
4874 const GValue * subtrahend)
4876 gboolean ret = gst_value_subtract2 (dest, minuend, subtrahend);
4878 g_printerr ("\"%s\" - \"%s\" = \"%s\"\n", gst_value_serialize (minuend),
4879 gst_value_serialize (subtrahend),
4880 ret ? gst_value_serialize (dest) : "---");
4886 * gst_value_can_subtract:
4887 * @minuend: the value to subtract from
4888 * @subtrahend: the value to subtract
4890 * Checks if it's possible to subtract @subtrahend from @minuend.
4892 * Returns: TRUE if a subtraction is possible
4895 gst_value_can_subtract (const GValue * minuend, const GValue * subtrahend)
4897 GstValueSubtractInfo *info;
4899 GType ltype, mtype, stype;
4901 g_return_val_if_fail (G_IS_VALUE (minuend), FALSE);
4902 g_return_val_if_fail (G_IS_VALUE (subtrahend), FALSE);
4904 ltype = gst_value_list_get_type ();
4907 if (G_VALUE_HOLDS (minuend, ltype) || G_VALUE_HOLDS (subtrahend, ltype))
4910 mtype = G_VALUE_TYPE (minuend);
4911 stype = G_VALUE_TYPE (subtrahend);
4913 len = gst_value_subtract_funcs->len;
4914 for (i = 0; i < len; i++) {
4915 info = &g_array_index (gst_value_subtract_funcs, GstValueSubtractInfo, i);
4916 if (info->minuend == mtype && info->subtrahend == stype)
4920 return gst_value_can_compare (minuend, subtrahend);
4923 /* gst_value_register_subtract_func: (skip)
4924 * @minuend_type: type of the minuend
4925 * @subtrahend_type: type of the subtrahend
4926 * @func: function to use
4928 * Registers @func as a function capable of subtracting the values of
4929 * @subtrahend_type from values of @minuend_type.
4931 * Subtract functions should be registered at startup before any pipelines are
4932 * started, as gst_value_register_subtract_func() is not thread-safe and
4933 * cannot be used at the same time as gst_value_subtract().
4936 gst_value_register_subtract_func (GType minuend_type, GType subtrahend_type,
4937 GstValueSubtractFunc func)
4939 GstValueSubtractInfo info;
4941 g_return_if_fail (!gst_type_is_fixed (minuend_type)
4942 || !gst_type_is_fixed (subtrahend_type));
4944 info.minuend = minuend_type;
4945 info.subtrahend = subtrahend_type;
4948 g_array_append_val (gst_value_subtract_funcs, info);
4952 * gst_value_register:
4953 * @table: structure containing functions to register
4955 * Registers functions to perform calculations on #GValue items of a given
4956 * type. Each type can only be added once.
4959 gst_value_register (const GstValueTable * table)
4961 GstValueTable *found;
4963 g_return_if_fail (table != NULL);
4965 g_array_append_val (gst_value_table, *table);
4967 found = gst_value_hash_lookup_type (table->type);
4969 g_warning ("adding type %s multiple times", g_type_name (table->type));
4971 /* FIXME: we're not really doing the const justice, we assume the table is
4973 gst_value_hash_add_type (table->type, table);
4977 * gst_value_init_and_copy:
4978 * @dest: (out caller-allocates): the target value
4979 * @src: the source value
4981 * Initialises the target value to be of the same type as source and then copies
4982 * the contents from source to target.
4985 gst_value_init_and_copy (GValue * dest, const GValue * src)
4987 g_return_if_fail (G_IS_VALUE (src));
4988 g_return_if_fail (dest != NULL);
4990 g_value_init (dest, G_VALUE_TYPE (src));
4991 g_value_copy (src, dest);
4994 /* move src into dest and clear src */
4996 gst_value_move (GValue * dest, GValue * src)
4998 g_assert (G_IS_VALUE (src));
4999 g_assert (dest != NULL);
5002 memset (src, 0, sizeof (GValue));
5006 * gst_value_serialize:
5007 * @value: a #GValue to serialize
5009 * tries to transform the given @value into a string representation that allows
5010 * getting back this string later on using gst_value_deserialize().
5012 * Free-function: g_free
5014 * Returns: (transfer full): the serialization for @value or NULL if none exists
5017 gst_value_serialize (const GValue * value)
5020 GValue s_val = { 0 };
5021 GstValueTable *table, *best;
5025 g_return_val_if_fail (G_IS_VALUE (value), NULL);
5027 type = G_VALUE_TYPE (value);
5029 best = gst_value_hash_lookup_type (type);
5031 if (G_UNLIKELY (!best || !best->serialize)) {
5032 len = gst_value_table->len;
5034 for (i = 0; i < len; i++) {
5035 table = &g_array_index (gst_value_table, GstValueTable, i);
5036 if (table->serialize && g_type_is_a (type, table->type)) {
5037 if (!best || g_type_is_a (table->type, best->type))
5042 if (G_LIKELY (best))
5043 return best->serialize (value);
5045 g_value_init (&s_val, G_TYPE_STRING);
5046 if (g_value_transform (value, &s_val)) {
5047 s = gst_string_wrap (g_value_get_string (&s_val));
5051 g_value_unset (&s_val);
5057 * gst_value_deserialize:
5058 * @dest: (out caller-allocates): #GValue to fill with contents of
5060 * @src: string to deserialize
5062 * Tries to deserialize a string into the type specified by the given GValue.
5063 * If the operation succeeds, TRUE is returned, FALSE otherwise.
5065 * Returns: TRUE on success
5068 gst_value_deserialize (GValue * dest, const gchar * src)
5070 GstValueTable *table, *best;
5074 g_return_val_if_fail (src != NULL, FALSE);
5075 g_return_val_if_fail (G_IS_VALUE (dest), FALSE);
5077 type = G_VALUE_TYPE (dest);
5079 best = gst_value_hash_lookup_type (type);
5080 if (G_UNLIKELY (!best || !best->deserialize)) {
5081 len = gst_value_table->len;
5083 for (i = 0; i < len; i++) {
5084 table = &g_array_index (gst_value_table, GstValueTable, i);
5085 if (table->deserialize && g_type_is_a (type, table->type)) {
5086 if (!best || g_type_is_a (table->type, best->type))
5091 if (G_LIKELY (best))
5092 return best->deserialize (dest, src);
5098 * gst_value_is_fixed:
5099 * @value: the #GValue to check
5101 * Tests if the given GValue, if available in a GstStructure (or any other
5102 * container) contains a "fixed" (which means: one value) or an "unfixed"
5103 * (which means: multiple possible values, such as data lists or data
5106 * Returns: true if the value is "fixed".
5110 gst_value_is_fixed (const GValue * value)
5114 g_return_val_if_fail (G_IS_VALUE (value), FALSE);
5116 type = G_VALUE_TYPE (value);
5118 /* the most common types are just basic plain glib types */
5119 if (type <= G_TYPE_MAKE_FUNDAMENTAL (G_TYPE_RESERVED_GLIB_LAST)) {
5123 if (type == GST_TYPE_ARRAY) {
5127 /* check recursively */
5128 size = gst_value_array_get_size (value);
5129 for (n = 0; n < size; n++) {
5130 kid = gst_value_array_get_value (value, n);
5131 if (!gst_value_is_fixed (kid))
5136 return gst_type_is_fixed (type);
5141 * @dest: the #GValue destination
5142 * @src: the #GValue to fixate
5144 * Fixate @src into a new value @dest.
5145 * For ranges, the first element is taken. For lists and arrays, the
5146 * first item is fixated and returned.
5147 * If @src is already fixed, this function returns FALSE.
5149 * Returns: true if @dest contains a fixated version of @src.
5152 gst_value_fixate (GValue * dest, const GValue * src)
5154 g_return_val_if_fail (G_IS_VALUE (src), FALSE);
5155 g_return_val_if_fail (dest != NULL, FALSE);
5157 if (G_VALUE_TYPE (src) == GST_TYPE_INT_RANGE) {
5158 g_value_init (dest, G_TYPE_INT);
5159 g_value_set_int (dest, gst_value_get_int_range_min (src));
5160 } else if (G_VALUE_TYPE (src) == GST_TYPE_DOUBLE_RANGE) {
5161 g_value_init (dest, G_TYPE_DOUBLE);
5162 g_value_set_double (dest, gst_value_get_double_range_min (src));
5163 } else if (G_VALUE_TYPE (src) == GST_TYPE_FRACTION_RANGE) {
5164 gst_value_init_and_copy (dest, gst_value_get_fraction_range_min (src));
5165 } else if (G_VALUE_TYPE (src) == GST_TYPE_LIST) {
5166 GValue temp = { 0 };
5168 /* list could be empty */
5169 if (gst_value_list_get_size (src) <= 0)
5172 gst_value_init_and_copy (&temp, gst_value_list_get_value (src, 0));
5174 if (!gst_value_fixate (dest, &temp)) {
5175 gst_value_move (dest, &temp);
5177 g_value_unset (&temp);
5179 } else if (G_VALUE_TYPE (src) == GST_TYPE_ARRAY) {
5180 gboolean res = FALSE;
5183 len = gst_value_array_get_size (src);
5184 g_value_init (dest, GST_TYPE_ARRAY);
5185 for (n = 0; n < len; n++) {
5187 const GValue *orig_kid = gst_value_array_get_value (src, n);
5189 if (!gst_value_fixate (&kid, orig_kid))
5190 gst_value_init_and_copy (&kid, orig_kid);
5193 _gst_value_array_append_and_take_value (dest, &kid);
5197 g_value_unset (dest);
5211 /* helper functions */
5213 gst_value_init_fraction (GValue * value)
5215 value->data[0].v_int = 0;
5216 value->data[1].v_int = 1;
5220 gst_value_copy_fraction (const GValue * src_value, GValue * dest_value)
5222 dest_value->data[0].v_int = src_value->data[0].v_int;
5223 dest_value->data[1].v_int = src_value->data[1].v_int;
5227 gst_value_collect_fraction (GValue * value, guint n_collect_values,
5228 GTypeCValue * collect_values, guint collect_flags)
5230 if (n_collect_values != 2)
5231 return g_strdup_printf ("not enough value locations for `%s' passed",
5232 G_VALUE_TYPE_NAME (value));
5233 if (collect_values[1].v_int == 0)
5234 return g_strdup_printf ("passed '0' as denominator for `%s'",
5235 G_VALUE_TYPE_NAME (value));
5236 if (collect_values[0].v_int < -G_MAXINT)
5239 ("passed value smaller than -G_MAXINT as numerator for `%s'",
5240 G_VALUE_TYPE_NAME (value));
5241 if (collect_values[1].v_int < -G_MAXINT)
5244 ("passed value smaller than -G_MAXINT as denominator for `%s'",
5245 G_VALUE_TYPE_NAME (value));
5247 gst_value_set_fraction (value,
5248 collect_values[0].v_int, collect_values[1].v_int);
5254 gst_value_lcopy_fraction (const GValue * value, guint n_collect_values,
5255 GTypeCValue * collect_values, guint collect_flags)
5257 gint *numerator = collect_values[0].v_pointer;
5258 gint *denominator = collect_values[1].v_pointer;
5261 return g_strdup_printf ("numerator for `%s' passed as NULL",
5262 G_VALUE_TYPE_NAME (value));
5264 return g_strdup_printf ("denominator for `%s' passed as NULL",
5265 G_VALUE_TYPE_NAME (value));
5267 *numerator = value->data[0].v_int;
5268 *denominator = value->data[1].v_int;
5274 * gst_value_set_fraction:
5275 * @value: a GValue initialized to #GST_TYPE_FRACTION
5276 * @numerator: the numerator of the fraction
5277 * @denominator: the denominator of the fraction
5279 * Sets @value to the fraction specified by @numerator over @denominator.
5280 * The fraction gets reduced to the smallest numerator and denominator,
5281 * and if necessary the sign is moved to the numerator.
5284 gst_value_set_fraction (GValue * value, gint numerator, gint denominator)
5288 g_return_if_fail (GST_VALUE_HOLDS_FRACTION (value));
5289 g_return_if_fail (denominator != 0);
5290 g_return_if_fail (denominator >= -G_MAXINT);
5291 g_return_if_fail (numerator >= -G_MAXINT);
5293 /* normalize sign */
5294 if (denominator < 0) {
5295 numerator = -numerator;
5296 denominator = -denominator;
5299 /* check for reduction */
5300 gcd = gst_util_greatest_common_divisor (numerator, denominator);
5306 g_assert (denominator > 0);
5308 value->data[0].v_int = numerator;
5309 value->data[1].v_int = denominator;
5313 * gst_value_get_fraction_numerator:
5314 * @value: a GValue initialized to #GST_TYPE_FRACTION
5316 * Gets the numerator of the fraction specified by @value.
5318 * Returns: the numerator of the fraction.
5321 gst_value_get_fraction_numerator (const GValue * value)
5323 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (value), 0);
5325 return value->data[0].v_int;
5329 * gst_value_get_fraction_denominator:
5330 * @value: a GValue initialized to #GST_TYPE_FRACTION
5332 * Gets the denominator of the fraction specified by @value.
5334 * Returns: the denominator of the fraction.
5337 gst_value_get_fraction_denominator (const GValue * value)
5339 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (value), 1);
5341 return value->data[1].v_int;
5345 * gst_value_fraction_multiply:
5346 * @product: a GValue initialized to #GST_TYPE_FRACTION
5347 * @factor1: a GValue initialized to #GST_TYPE_FRACTION
5348 * @factor2: a GValue initialized to #GST_TYPE_FRACTION
5350 * Multiplies the two #GValue items containing a #GST_TYPE_FRACTION and sets
5351 * @product to the product of the two fractions.
5353 * Returns: FALSE in case of an error (like integer overflow), TRUE otherwise.
5356 gst_value_fraction_multiply (GValue * product, const GValue * factor1,
5357 const GValue * factor2)
5359 gint n1, n2, d1, d2;
5362 g_return_val_if_fail (product != NULL, FALSE);
5363 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (factor1), FALSE);
5364 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (factor2), FALSE);
5366 n1 = factor1->data[0].v_int;
5367 n2 = factor2->data[0].v_int;
5368 d1 = factor1->data[1].v_int;
5369 d2 = factor2->data[1].v_int;
5371 if (!gst_util_fraction_multiply (n1, d1, n2, d2, &res_n, &res_d))
5374 gst_value_set_fraction (product, res_n, res_d);
5380 * gst_value_fraction_subtract:
5381 * @dest: a GValue initialized to #GST_TYPE_FRACTION
5382 * @minuend: a GValue initialized to #GST_TYPE_FRACTION
5383 * @subtrahend: a GValue initialized to #GST_TYPE_FRACTION
5385 * Subtracts the @subtrahend from the @minuend and sets @dest to the result.
5387 * Returns: FALSE in case of an error (like integer overflow), TRUE otherwise.
5390 gst_value_fraction_subtract (GValue * dest,
5391 const GValue * minuend, const GValue * subtrahend)
5393 gint n1, n2, d1, d2;
5396 g_return_val_if_fail (dest != NULL, FALSE);
5397 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (minuend), FALSE);
5398 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (subtrahend), FALSE);
5400 n1 = minuend->data[0].v_int;
5401 n2 = subtrahend->data[0].v_int;
5402 d1 = minuend->data[1].v_int;
5403 d2 = subtrahend->data[1].v_int;
5405 if (!gst_util_fraction_add (n1, d1, -n2, d2, &res_n, &res_d))
5407 gst_value_set_fraction (dest, res_n, res_d);
5413 gst_value_serialize_fraction (const GValue * value)
5415 gint32 numerator = value->data[0].v_int;
5416 gint32 denominator = value->data[1].v_int;
5417 gboolean positive = TRUE;
5419 /* get the sign and make components absolute */
5420 if (numerator < 0) {
5421 numerator = -numerator;
5422 positive = !positive;
5424 if (denominator < 0) {
5425 denominator = -denominator;
5426 positive = !positive;
5429 return g_strdup_printf ("%s%d/%d",
5430 positive ? "" : "-", numerator, denominator);
5434 gst_value_deserialize_fraction (GValue * dest, const gchar * s)
5439 if (G_UNLIKELY (s == NULL))
5442 if (G_UNLIKELY (dest == NULL || !GST_VALUE_HOLDS_FRACTION (dest)))
5445 if (sscanf (s, "%d/%d%n", &num, &den, &num_chars) >= 2) {
5446 if (s[num_chars] != 0)
5451 gst_value_set_fraction (dest, num, den);
5453 } else if (g_ascii_strcasecmp (s, "1/max") == 0) {
5454 gst_value_set_fraction (dest, 1, G_MAXINT);
5456 } else if (sscanf (s, "%d%n", &num, &num_chars) >= 1) {
5457 if (s[num_chars] != 0)
5459 gst_value_set_fraction (dest, num, 1);
5461 } else if (g_ascii_strcasecmp (s, "min") == 0) {
5462 gst_value_set_fraction (dest, -G_MAXINT, 1);
5464 } else if (g_ascii_strcasecmp (s, "max") == 0) {
5465 gst_value_set_fraction (dest, G_MAXINT, 1);
5473 gst_value_transform_fraction_string (const GValue * src_value,
5474 GValue * dest_value)
5476 dest_value->data[0].v_pointer = gst_value_serialize_fraction (src_value);
5480 gst_value_transform_string_fraction (const GValue * src_value,
5481 GValue * dest_value)
5483 if (!gst_value_deserialize_fraction (dest_value,
5484 src_value->data[0].v_pointer))
5485 /* If the deserialize fails, ensure we leave the fraction in a
5486 * valid, if incorrect, state */
5487 gst_value_set_fraction (dest_value, 0, 1);
5491 gst_value_transform_double_fraction (const GValue * src_value,
5492 GValue * dest_value)
5494 gdouble src = g_value_get_double (src_value);
5497 gst_util_double_to_fraction (src, &n, &d);
5498 gst_value_set_fraction (dest_value, n, d);
5502 gst_value_transform_float_fraction (const GValue * src_value,
5503 GValue * dest_value)
5505 gfloat src = g_value_get_float (src_value);
5508 gst_util_double_to_fraction (src, &n, &d);
5509 gst_value_set_fraction (dest_value, n, d);
5513 gst_value_transform_fraction_double (const GValue * src_value,
5514 GValue * dest_value)
5516 dest_value->data[0].v_double = ((double) src_value->data[0].v_int) /
5517 ((double) src_value->data[1].v_int);
5521 gst_value_transform_fraction_float (const GValue * src_value,
5522 GValue * dest_value)
5524 dest_value->data[0].v_float = ((float) src_value->data[0].v_int) /
5525 ((float) src_value->data[1].v_int);
5529 gst_value_compare_fraction (const GValue * value1, const GValue * value2)
5535 n1 = value1->data[0].v_int;
5536 n2 = value2->data[0].v_int;
5537 d1 = value1->data[1].v_int;
5538 d2 = value2->data[1].v_int;
5540 /* fractions are reduced when set, so we can quickly see if they're equal */
5541 if (n1 == n2 && d1 == d2)
5542 return GST_VALUE_EQUAL;
5544 if (d1 == 0 && d2 == 0)
5545 return GST_VALUE_UNORDERED;
5547 return GST_VALUE_GREATER_THAN;
5549 return GST_VALUE_LESS_THAN;
5551 ret = gst_util_fraction_compare (n1, d1, n2, d2);
5553 return GST_VALUE_LESS_THAN;
5555 return GST_VALUE_GREATER_THAN;
5557 /* Equality can't happen here because we check for that
5559 g_return_val_if_reached (GST_VALUE_UNORDERED);
5567 gst_value_compare_date (const GValue * value1, const GValue * value2)
5569 const GDate *date1 = (const GDate *) g_value_get_boxed (value1);
5570 const GDate *date2 = (const GDate *) g_value_get_boxed (value2);
5574 return GST_VALUE_EQUAL;
5576 if ((date1 == NULL || !g_date_valid (date1))
5577 && (date2 != NULL && g_date_valid (date2))) {
5578 return GST_VALUE_LESS_THAN;
5581 if ((date2 == NULL || !g_date_valid (date2))
5582 && (date1 != NULL && g_date_valid (date1))) {
5583 return GST_VALUE_GREATER_THAN;
5586 if (date1 == NULL || date2 == NULL || !g_date_valid (date1)
5587 || !g_date_valid (date2)) {
5588 return GST_VALUE_UNORDERED;
5591 j1 = g_date_get_julian (date1);
5592 j2 = g_date_get_julian (date2);
5595 return GST_VALUE_EQUAL;
5597 return GST_VALUE_LESS_THAN;
5599 return GST_VALUE_GREATER_THAN;
5603 gst_value_serialize_date (const GValue * val)
5605 const GDate *date = (const GDate *) g_value_get_boxed (val);
5607 if (date == NULL || !g_date_valid (date))
5608 return g_strdup ("9999-99-99");
5610 return g_strdup_printf ("%04u-%02u-%02u", g_date_get_year (date),
5611 g_date_get_month (date), g_date_get_day (date));
5615 gst_value_deserialize_date (GValue * dest, const gchar * s)
5617 guint year, month, day;
5619 if (!s || sscanf (s, "%04u-%02u-%02u", &year, &month, &day) != 3)
5622 if (!g_date_valid_dmy (day, month, year))
5625 g_value_take_boxed (dest, g_date_new_dmy (day, month, year));
5634 gst_value_compare_date_time (const GValue * value1, const GValue * value2)
5636 const GstDateTime *date1 = (const GstDateTime *) g_value_get_boxed (value1);
5637 const GstDateTime *date2 = (const GstDateTime *) g_value_get_boxed (value2);
5640 return GST_VALUE_EQUAL;
5642 if ((date1 == NULL) && (date2 != NULL)) {
5643 return GST_VALUE_LESS_THAN;
5645 if ((date2 == NULL) && (date1 != NULL)) {
5646 return GST_VALUE_LESS_THAN;
5649 /* returns GST_VALUE_* */
5650 return __gst_date_time_compare (date1, date2);
5654 gst_value_serialize_date_time (const GValue * val)
5656 GstDateTime *date = (GstDateTime *) g_value_get_boxed (val);
5659 return g_strdup ("null");
5661 return __gst_date_time_serialize (date, TRUE);
5665 gst_value_deserialize_date_time (GValue * dest, const gchar * s)
5667 GstDateTime *datetime;
5669 if (!s || strcmp (s, "null") == 0) {
5673 datetime = gst_date_time_new_from_iso8601_string (s);
5674 if (datetime != NULL) {
5675 g_value_take_boxed (dest, datetime);
5678 GST_WARNING ("Failed to deserialize date time string '%s'", s);
5683 gst_value_transform_date_string (const GValue * src_value, GValue * dest_value)
5685 dest_value->data[0].v_pointer = gst_value_serialize_date (src_value);
5689 gst_value_transform_string_date (const GValue * src_value, GValue * dest_value)
5691 gst_value_deserialize_date (dest_value, src_value->data[0].v_pointer);
5699 /* helper functions */
5701 gst_value_init_bitmask (GValue * value)
5703 value->data[0].v_uint64 = 0;
5707 gst_value_copy_bitmask (const GValue * src_value, GValue * dest_value)
5709 dest_value->data[0].v_uint64 = src_value->data[0].v_uint64;
5713 gst_value_collect_bitmask (GValue * value, guint n_collect_values,
5714 GTypeCValue * collect_values, guint collect_flags)
5716 if (n_collect_values != 1)
5717 return g_strdup_printf ("not enough value locations for `%s' passed",
5718 G_VALUE_TYPE_NAME (value));
5720 gst_value_set_bitmask (value, (guint64) collect_values[0].v_int64);
5726 gst_value_lcopy_bitmask (const GValue * value, guint n_collect_values,
5727 GTypeCValue * collect_values, guint collect_flags)
5729 guint64 *bitmask = collect_values[0].v_pointer;
5732 return g_strdup_printf ("value for `%s' passed as NULL",
5733 G_VALUE_TYPE_NAME (value));
5735 *bitmask = value->data[0].v_uint64;
5741 * gst_value_set_bitmask:
5742 * @value: a GValue initialized to #GST_TYPE_BITMASK
5743 * @bitmask: the bitmask
5745 * Sets @value to the bitmask specified by @bitmask.
5748 gst_value_set_bitmask (GValue * value, guint64 bitmask)
5750 g_return_if_fail (GST_VALUE_HOLDS_BITMASK (value));
5752 value->data[0].v_uint64 = bitmask;
5756 * gst_value_get_bitmask:
5757 * @value: a GValue initialized to #GST_TYPE_BITMASK
5759 * Gets the bitmask specified by @value.
5761 * Returns: the bitmask.
5764 gst_value_get_bitmask (const GValue * value)
5766 g_return_val_if_fail (GST_VALUE_HOLDS_BITMASK (value), 0);
5768 return value->data[0].v_uint64;
5772 gst_value_serialize_bitmask (const GValue * value)
5774 guint64 bitmask = value->data[0].v_uint64;
5776 return g_strdup_printf ("0x%016" G_GINT64_MODIFIER "x", bitmask);
5780 gst_value_deserialize_bitmask (GValue * dest, const gchar * s)
5782 gchar *endptr = NULL;
5785 if (G_UNLIKELY (s == NULL))
5788 if (G_UNLIKELY (dest == NULL || !GST_VALUE_HOLDS_BITMASK (dest)))
5791 val = g_ascii_strtoull (s, &endptr, 16);
5792 if (val == G_MAXUINT64 && (errno == ERANGE || errno == EINVAL))
5794 if (val == 0 && endptr == s)
5797 gst_value_set_bitmask (dest, val);
5803 gst_value_transform_bitmask_string (const GValue * src_value,
5804 GValue * dest_value)
5806 dest_value->data[0].v_pointer = gst_value_serialize_bitmask (src_value);
5810 gst_value_transform_string_bitmask (const GValue * src_value,
5811 GValue * dest_value)
5813 if (!gst_value_deserialize_bitmask (dest_value, src_value->data[0].v_pointer))
5814 gst_value_set_bitmask (dest_value, 0);
5818 gst_value_transform_uint64_bitmask (const GValue * src_value,
5819 GValue * dest_value)
5821 dest_value->data[0].v_uint64 = src_value->data[0].v_uint64;
5825 gst_value_transform_bitmask_uint64 (const GValue * src_value,
5826 GValue * dest_value)
5828 dest_value->data[0].v_uint64 = src_value->data[0].v_uint64;
5832 gst_value_compare_bitmask (const GValue * value1, const GValue * value2)
5836 v1 = value1->data[0].v_uint64;
5837 v2 = value2->data[0].v_uint64;
5840 return GST_VALUE_EQUAL;
5842 return GST_VALUE_UNORDERED;
5846 gst_value_transform_object_string (const GValue * src_value,
5847 GValue * dest_value)
5852 obj = g_value_get_object (src_value);
5855 g_strdup_printf ("(%s) %s", G_OBJECT_TYPE_NAME (obj),
5856 GST_OBJECT_NAME (obj));
5858 str = g_strdup ("NULL");
5861 dest_value->data[0].v_pointer = str;
5864 static GTypeInfo _info = {
5877 static GTypeFundamentalInfo _finfo = {
5881 #define FUNC_VALUE_GET_TYPE(type, name) \
5882 GType gst_ ## type ## _get_type (void) \
5884 static volatile GType gst_ ## type ## _type = 0; \
5886 if (g_once_init_enter (&gst_ ## type ## _type)) { \
5888 _info.value_table = & _gst_ ## type ## _value_table; \
5889 _type = g_type_register_fundamental ( \
5890 g_type_fundamental_next (), \
5891 name, &_info, &_finfo, 0); \
5892 g_once_init_leave(&gst_ ## type ## _type, _type); \
5895 return gst_ ## type ## _type; \
5898 static const GTypeValueTable _gst_int_range_value_table = {
5899 gst_value_init_int_range,
5900 gst_value_free_int_range,
5901 gst_value_copy_int_range,
5904 gst_value_collect_int_range,
5906 gst_value_lcopy_int_range
5909 FUNC_VALUE_GET_TYPE (int_range, "GstIntRange");
5911 static const GTypeValueTable _gst_int64_range_value_table = {
5912 gst_value_init_int64_range,
5913 gst_value_free_int64_range,
5914 gst_value_copy_int64_range,
5917 gst_value_collect_int64_range,
5919 gst_value_lcopy_int64_range
5922 FUNC_VALUE_GET_TYPE (int64_range, "GstInt64Range");
5924 static const GTypeValueTable _gst_double_range_value_table = {
5925 gst_value_init_double_range,
5927 gst_value_copy_double_range,
5930 gst_value_collect_double_range,
5932 gst_value_lcopy_double_range
5935 FUNC_VALUE_GET_TYPE (double_range, "GstDoubleRange");
5937 static const GTypeValueTable _gst_fraction_range_value_table = {
5938 gst_value_init_fraction_range,
5939 gst_value_free_fraction_range,
5940 gst_value_copy_fraction_range,
5943 gst_value_collect_fraction_range,
5945 gst_value_lcopy_fraction_range
5948 FUNC_VALUE_GET_TYPE (fraction_range, "GstFractionRange");
5950 static const GTypeValueTable _gst_value_list_value_table = {
5951 gst_value_init_list_or_array,
5952 gst_value_free_list_or_array,
5953 gst_value_copy_list_or_array,
5954 gst_value_list_or_array_peek_pointer,
5956 gst_value_collect_list_or_array,
5958 gst_value_lcopy_list_or_array
5961 FUNC_VALUE_GET_TYPE (value_list, "GstValueList");
5963 static const GTypeValueTable _gst_value_array_value_table = {
5964 gst_value_init_list_or_array,
5965 gst_value_free_list_or_array,
5966 gst_value_copy_list_or_array,
5967 gst_value_list_or_array_peek_pointer,
5969 gst_value_collect_list_or_array,
5971 gst_value_lcopy_list_or_array
5974 FUNC_VALUE_GET_TYPE (value_array, "GstValueArray");
5976 static const GTypeValueTable _gst_fraction_value_table = {
5977 gst_value_init_fraction,
5979 gst_value_copy_fraction,
5982 gst_value_collect_fraction,
5984 gst_value_lcopy_fraction
5987 FUNC_VALUE_GET_TYPE (fraction, "GstFraction");
5989 G_DEFINE_BOXED_TYPE (GstDateTime, gst_date_time,
5990 (GBoxedCopyFunc) gst_date_time_ref, (GBoxedFreeFunc) gst_date_time_unref);
5992 static const GTypeValueTable _gst_bitmask_value_table = {
5993 gst_value_init_bitmask,
5995 gst_value_copy_bitmask,
5998 gst_value_collect_bitmask,
6000 gst_value_lcopy_bitmask
6003 FUNC_VALUE_GET_TYPE (bitmask, "GstBitmask");
6006 gst_g_thread_get_type (void)
6008 #if GLIB_CHECK_VERSION(2,35,3)
6009 return G_TYPE_THREAD;
6011 static volatile gsize type_id = 0;
6013 if (g_once_init_enter (&type_id)) {
6015 g_boxed_type_register_static (g_intern_static_string ("GstGThread"),
6016 (GBoxedCopyFunc) g_thread_ref,
6017 (GBoxedFreeFunc) g_thread_unref);
6018 g_once_init_leave (&type_id, tmp);
6026 _priv_gst_value_initialize (void)
6028 gst_value_table = g_array_new (FALSE, FALSE, sizeof (GstValueTable));
6029 gst_value_hash = g_hash_table_new (NULL, NULL);
6030 gst_value_union_funcs = g_array_new (FALSE, FALSE,
6031 sizeof (GstValueUnionInfo));
6032 gst_value_intersect_funcs = g_array_new (FALSE, FALSE,
6033 sizeof (GstValueIntersectInfo));
6034 gst_value_subtract_funcs = g_array_new (FALSE, FALSE,
6035 sizeof (GstValueSubtractInfo));
6038 static GstValueTable gst_value = {
6040 gst_value_compare_int_range,
6041 gst_value_serialize_int_range,
6042 gst_value_deserialize_int_range,
6045 gst_value.type = gst_int_range_get_type ();
6046 gst_value_register (&gst_value);
6050 static GstValueTable gst_value = {
6052 gst_value_compare_int64_range,
6053 gst_value_serialize_int64_range,
6054 gst_value_deserialize_int64_range,
6057 gst_value.type = gst_int64_range_get_type ();
6058 gst_value_register (&gst_value);
6062 static GstValueTable gst_value = {
6064 gst_value_compare_double_range,
6065 gst_value_serialize_double_range,
6066 gst_value_deserialize_double_range,
6069 gst_value.type = gst_double_range_get_type ();
6070 gst_value_register (&gst_value);
6074 static GstValueTable gst_value = {
6076 gst_value_compare_fraction_range,
6077 gst_value_serialize_fraction_range,
6078 gst_value_deserialize_fraction_range,
6081 gst_value.type = gst_fraction_range_get_type ();
6082 gst_value_register (&gst_value);
6086 static GstValueTable gst_value = {
6088 gst_value_compare_list,
6089 gst_value_serialize_list,
6090 gst_value_deserialize_list,
6093 gst_value.type = gst_value_list_get_type ();
6094 gst_value_register (&gst_value);
6098 static GstValueTable gst_value = {
6100 gst_value_compare_array,
6101 gst_value_serialize_array,
6102 gst_value_deserialize_array,
6105 gst_value.type = gst_value_array_get_type ();
6106 gst_value_register (&gst_value);
6111 static const GTypeValueTable value_table = {
6112 gst_value_init_buffer,
6114 gst_value_copy_buffer,
6117 NULL, /*gst_value_collect_buffer, */
6119 NULL /*gst_value_lcopy_buffer */
6122 static GstValueTable gst_value = {
6124 gst_value_compare_buffer,
6125 gst_value_serialize_buffer,
6126 gst_value_deserialize_buffer,
6129 gst_value.type = GST_TYPE_BUFFER;
6130 gst_value_register (&gst_value);
6133 static GstValueTable gst_value = {
6135 gst_value_compare_sample,
6136 gst_value_serialize_sample,
6137 gst_value_deserialize_sample,
6140 gst_value.type = GST_TYPE_SAMPLE;
6141 gst_value_register (&gst_value);
6144 static GstValueTable gst_value = {
6146 gst_value_compare_fraction,
6147 gst_value_serialize_fraction,
6148 gst_value_deserialize_fraction,
6151 gst_value.type = gst_fraction_get_type ();
6152 gst_value_register (&gst_value);
6155 static GstValueTable gst_value = {
6157 gst_value_compare_caps,
6158 gst_value_serialize_caps,
6159 gst_value_deserialize_caps,
6162 gst_value.type = GST_TYPE_CAPS;
6163 gst_value_register (&gst_value);
6166 static GstValueTable gst_value = {
6169 gst_value_serialize_segment,
6170 gst_value_deserialize_segment,
6173 gst_value.type = GST_TYPE_SEGMENT;
6174 gst_value_register (&gst_value);
6177 static GstValueTable gst_value = {
6180 gst_value_serialize_structure,
6181 gst_value_deserialize_structure,
6184 gst_value.type = GST_TYPE_STRUCTURE;
6185 gst_value_register (&gst_value);
6188 static GstValueTable gst_value = {
6191 gst_value_serialize_caps_features,
6192 gst_value_deserialize_caps_features,
6195 gst_value.type = GST_TYPE_CAPS_FEATURES;
6196 gst_value_register (&gst_value);
6199 static GstValueTable gst_value = {
6202 gst_value_serialize_tag_list,
6203 gst_value_deserialize_tag_list,
6206 gst_value.type = GST_TYPE_TAG_LIST;
6207 gst_value_register (&gst_value);
6210 static GstValueTable gst_value = {
6212 gst_value_compare_date,
6213 gst_value_serialize_date,
6214 gst_value_deserialize_date,
6217 gst_value.type = G_TYPE_DATE;
6218 gst_value_register (&gst_value);
6221 static GstValueTable gst_value = {
6223 gst_value_compare_date_time,
6224 gst_value_serialize_date_time,
6225 gst_value_deserialize_date_time,
6228 gst_value.type = gst_date_time_get_type ();
6229 gst_value_register (&gst_value);
6233 static GstValueTable gst_value = {
6235 gst_value_compare_bitmask,
6236 gst_value_serialize_bitmask,
6237 gst_value_deserialize_bitmask,
6240 gst_value.type = gst_bitmask_get_type ();
6241 gst_value_register (&gst_value);
6244 REGISTER_SERIALIZATION (G_TYPE_DOUBLE, double);
6245 REGISTER_SERIALIZATION (G_TYPE_FLOAT, float);
6247 REGISTER_SERIALIZATION (G_TYPE_STRING, string);
6248 REGISTER_SERIALIZATION (G_TYPE_BOOLEAN, boolean);
6249 REGISTER_SERIALIZATION (G_TYPE_ENUM, enum);
6251 REGISTER_SERIALIZATION (G_TYPE_FLAGS, flags);
6253 REGISTER_SERIALIZATION (G_TYPE_INT, int);
6255 REGISTER_SERIALIZATION (G_TYPE_INT64, int64);
6256 REGISTER_SERIALIZATION (G_TYPE_LONG, long);
6258 REGISTER_SERIALIZATION (G_TYPE_UINT, uint);
6259 REGISTER_SERIALIZATION (G_TYPE_UINT64, uint64);
6260 REGISTER_SERIALIZATION (G_TYPE_ULONG, ulong);
6262 REGISTER_SERIALIZATION (G_TYPE_UCHAR, uchar);
6264 g_value_register_transform_func (GST_TYPE_INT_RANGE, G_TYPE_STRING,
6265 gst_value_transform_int_range_string);
6266 g_value_register_transform_func (GST_TYPE_INT64_RANGE, G_TYPE_STRING,
6267 gst_value_transform_int64_range_string);
6268 g_value_register_transform_func (GST_TYPE_DOUBLE_RANGE, G_TYPE_STRING,
6269 gst_value_transform_double_range_string);
6270 g_value_register_transform_func (GST_TYPE_FRACTION_RANGE, G_TYPE_STRING,
6271 gst_value_transform_fraction_range_string);
6272 g_value_register_transform_func (GST_TYPE_LIST, G_TYPE_STRING,
6273 gst_value_transform_list_string);
6274 g_value_register_transform_func (GST_TYPE_ARRAY, G_TYPE_STRING,
6275 gst_value_transform_array_string);
6276 g_value_register_transform_func (GST_TYPE_FRACTION, G_TYPE_STRING,
6277 gst_value_transform_fraction_string);
6278 g_value_register_transform_func (G_TYPE_STRING, GST_TYPE_FRACTION,
6279 gst_value_transform_string_fraction);
6280 g_value_register_transform_func (GST_TYPE_FRACTION, G_TYPE_DOUBLE,
6281 gst_value_transform_fraction_double);
6282 g_value_register_transform_func (GST_TYPE_FRACTION, G_TYPE_FLOAT,
6283 gst_value_transform_fraction_float);
6284 g_value_register_transform_func (G_TYPE_DOUBLE, GST_TYPE_FRACTION,
6285 gst_value_transform_double_fraction);
6286 g_value_register_transform_func (G_TYPE_FLOAT, GST_TYPE_FRACTION,
6287 gst_value_transform_float_fraction);
6288 g_value_register_transform_func (G_TYPE_DATE, G_TYPE_STRING,
6289 gst_value_transform_date_string);
6290 g_value_register_transform_func (G_TYPE_STRING, G_TYPE_DATE,
6291 gst_value_transform_string_date);
6292 g_value_register_transform_func (GST_TYPE_OBJECT, G_TYPE_STRING,
6293 gst_value_transform_object_string);
6294 g_value_register_transform_func (GST_TYPE_BITMASK, G_TYPE_UINT64,
6295 gst_value_transform_bitmask_uint64);
6296 g_value_register_transform_func (GST_TYPE_BITMASK, G_TYPE_STRING,
6297 gst_value_transform_bitmask_string);
6298 g_value_register_transform_func (G_TYPE_UINT64, GST_TYPE_BITMASK,
6299 gst_value_transform_uint64_bitmask);
6300 g_value_register_transform_func (G_TYPE_STRING, GST_TYPE_BITMASK,
6301 gst_value_transform_string_bitmask);
6303 gst_value_register_intersect_func (G_TYPE_INT, GST_TYPE_INT_RANGE,
6304 gst_value_intersect_int_int_range);
6305 gst_value_register_intersect_func (GST_TYPE_INT_RANGE, GST_TYPE_INT_RANGE,
6306 gst_value_intersect_int_range_int_range);
6307 gst_value_register_intersect_func (G_TYPE_INT64, GST_TYPE_INT64_RANGE,
6308 gst_value_intersect_int64_int64_range);
6309 gst_value_register_intersect_func (GST_TYPE_INT64_RANGE, GST_TYPE_INT64_RANGE,
6310 gst_value_intersect_int64_range_int64_range);
6311 gst_value_register_intersect_func (G_TYPE_DOUBLE, GST_TYPE_DOUBLE_RANGE,
6312 gst_value_intersect_double_double_range);
6313 gst_value_register_intersect_func (GST_TYPE_DOUBLE_RANGE,
6314 GST_TYPE_DOUBLE_RANGE, gst_value_intersect_double_range_double_range);
6315 gst_value_register_intersect_func (GST_TYPE_ARRAY,
6316 GST_TYPE_ARRAY, gst_value_intersect_array);
6317 gst_value_register_intersect_func (GST_TYPE_FRACTION, GST_TYPE_FRACTION_RANGE,
6318 gst_value_intersect_fraction_fraction_range);
6319 gst_value_register_intersect_func (GST_TYPE_FRACTION_RANGE,
6320 GST_TYPE_FRACTION_RANGE,
6321 gst_value_intersect_fraction_range_fraction_range);
6323 gst_value_register_subtract_func (G_TYPE_INT, GST_TYPE_INT_RANGE,
6324 gst_value_subtract_int_int_range);
6325 gst_value_register_subtract_func (GST_TYPE_INT_RANGE, G_TYPE_INT,
6326 gst_value_subtract_int_range_int);
6327 gst_value_register_subtract_func (GST_TYPE_INT_RANGE, GST_TYPE_INT_RANGE,
6328 gst_value_subtract_int_range_int_range);
6329 gst_value_register_subtract_func (G_TYPE_INT64, GST_TYPE_INT64_RANGE,
6330 gst_value_subtract_int64_int64_range);
6331 gst_value_register_subtract_func (GST_TYPE_INT64_RANGE, G_TYPE_INT64,
6332 gst_value_subtract_int64_range_int64);
6333 gst_value_register_subtract_func (GST_TYPE_INT64_RANGE, GST_TYPE_INT64_RANGE,
6334 gst_value_subtract_int64_range_int64_range);
6335 gst_value_register_subtract_func (G_TYPE_DOUBLE, GST_TYPE_DOUBLE_RANGE,
6336 gst_value_subtract_double_double_range);
6337 gst_value_register_subtract_func (GST_TYPE_DOUBLE_RANGE, G_TYPE_DOUBLE,
6338 gst_value_subtract_double_range_double);
6339 gst_value_register_subtract_func (GST_TYPE_DOUBLE_RANGE,
6340 GST_TYPE_DOUBLE_RANGE, gst_value_subtract_double_range_double_range);
6341 gst_value_register_subtract_func (GST_TYPE_FRACTION, GST_TYPE_FRACTION_RANGE,
6342 gst_value_subtract_fraction_fraction_range);
6343 gst_value_register_subtract_func (GST_TYPE_FRACTION_RANGE, GST_TYPE_FRACTION,
6344 gst_value_subtract_fraction_range_fraction);
6345 gst_value_register_subtract_func (GST_TYPE_FRACTION_RANGE,
6346 GST_TYPE_FRACTION_RANGE,
6347 gst_value_subtract_fraction_range_fraction_range);
6349 /* see bug #317246, #64994, #65041 */
6351 volatile GType date_type = G_TYPE_DATE;
6353 g_type_name (date_type);
6356 gst_value_register_union_func (G_TYPE_INT, GST_TYPE_INT_RANGE,
6357 gst_value_union_int_int_range);
6358 gst_value_register_union_func (GST_TYPE_INT_RANGE, GST_TYPE_INT_RANGE,
6359 gst_value_union_int_range_int_range);
6362 /* Implement these if needed */
6363 gst_value_register_union_func (GST_TYPE_FRACTION, GST_TYPE_FRACTION_RANGE,
6364 gst_value_union_fraction_fraction_range);
6365 gst_value_register_union_func (GST_TYPE_FRACTION_RANGE,
6366 GST_TYPE_FRACTION_RANGE, gst_value_union_fraction_range_fraction_range);