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_value:
425 * @value: a #GValue of type #GST_TYPE_LIST
426 * @append_value: the value to append
428 * Appends @append_value to the GstValueList in @value.
431 gst_value_list_append_value (GValue * value, const 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_init_and_copy (&val, append_value);
441 g_array_append_vals ((GArray *) value->data[0].v_pointer, &val, 1);
445 * gst_value_list_prepend_value:
446 * @value: a #GValue of type #GST_TYPE_LIST
447 * @prepend_value: the value to prepend
449 * Prepends @prepend_value to the GstValueList in @value.
452 gst_value_list_prepend_value (GValue * value, const GValue * prepend_value)
456 g_return_if_fail (GST_VALUE_HOLDS_LIST (value));
457 g_return_if_fail (G_IS_VALUE (prepend_value));
458 g_return_if_fail (gst_value_list_or_array_are_compatible (value,
461 gst_value_init_and_copy (&val, prepend_value);
462 g_array_prepend_vals ((GArray *) value->data[0].v_pointer, &val, 1);
466 * gst_value_list_concat:
467 * @dest: (out caller-allocates): an uninitialized #GValue to take the result
471 * Concatenates copies of @value1 and @value2 into a list. Values that are not
472 * of type #GST_TYPE_LIST are treated as if they were lists of length 1.
473 * @dest will be initialized to the type #GST_TYPE_LIST.
476 gst_value_list_concat (GValue * dest, const GValue * value1,
477 const GValue * value2)
479 guint i, value1_length, value2_length;
482 g_return_if_fail (dest != NULL);
483 g_return_if_fail (G_VALUE_TYPE (dest) == 0);
484 g_return_if_fail (G_IS_VALUE (value1));
485 g_return_if_fail (G_IS_VALUE (value2));
486 g_return_if_fail (gst_value_list_or_array_are_compatible (value1, value2));
489 (GST_VALUE_HOLDS_LIST (value1) ? VALUE_LIST_SIZE (value1) : 1);
491 (GST_VALUE_HOLDS_LIST (value2) ? VALUE_LIST_SIZE (value2) : 1);
492 g_value_init (dest, GST_TYPE_LIST);
493 array = (GArray *) dest->data[0].v_pointer;
494 g_array_set_size (array, value1_length + value2_length);
496 if (GST_VALUE_HOLDS_LIST (value1)) {
497 for (i = 0; i < value1_length; i++) {
498 gst_value_init_and_copy (&g_array_index (array, GValue, i),
499 VALUE_LIST_GET_VALUE (value1, i));
502 gst_value_init_and_copy (&g_array_index (array, GValue, 0), value1);
505 if (GST_VALUE_HOLDS_LIST (value2)) {
506 for (i = 0; i < value2_length; i++) {
507 gst_value_init_and_copy (&g_array_index (array, GValue,
508 i + value1_length), VALUE_LIST_GET_VALUE (value2, i));
511 gst_value_init_and_copy (&g_array_index (array, GValue, value1_length),
517 * gst_value_list_merge:
518 * @dest: (out caller-allocates): an uninitialized #GValue to take the result
522 * Merges copies of @value1 and @value2. Values that are not
523 * of type #GST_TYPE_LIST are treated as if they were lists of length 1.
525 * The result will be put into @dest and will either be a list that will not
526 * contain any duplicates, or a non-list type (if @value1 and @value2
530 gst_value_list_merge (GValue * dest, const GValue * value1,
531 const GValue * value2)
533 guint i, j, k, value1_length, value2_length, skipped;
538 g_return_if_fail (dest != NULL);
539 g_return_if_fail (G_VALUE_TYPE (dest) == 0);
540 g_return_if_fail (G_IS_VALUE (value1));
541 g_return_if_fail (G_IS_VALUE (value2));
542 g_return_if_fail (gst_value_list_or_array_are_compatible (value1, value2));
545 (GST_VALUE_HOLDS_LIST (value1) ? VALUE_LIST_SIZE (value1) : 1);
547 (GST_VALUE_HOLDS_LIST (value2) ? VALUE_LIST_SIZE (value2) : 1);
548 g_value_init (dest, GST_TYPE_LIST);
549 array = (GArray *) dest->data[0].v_pointer;
550 g_array_set_size (array, value1_length + value2_length);
552 if (GST_VALUE_HOLDS_LIST (value1)) {
553 for (i = 0; i < value1_length; i++) {
554 gst_value_init_and_copy (&g_array_index (array, GValue, i),
555 VALUE_LIST_GET_VALUE (value1, i));
558 gst_value_init_and_copy (&g_array_index (array, GValue, 0), value1);
563 if (GST_VALUE_HOLDS_LIST (value2)) {
564 for (i = 0; i < value2_length; i++) {
566 src = VALUE_LIST_GET_VALUE (value2, i);
567 for (k = 0; k < value1_length; k++) {
568 if (gst_value_compare (&g_array_index (array, GValue, k),
569 src) == GST_VALUE_EQUAL) {
576 gst_value_init_and_copy (&g_array_index (array, GValue, j), src);
582 for (k = 0; k < value1_length; k++) {
583 if (gst_value_compare (&g_array_index (array, GValue, k),
584 value2) == GST_VALUE_EQUAL) {
591 gst_value_init_and_copy (&g_array_index (array, GValue, j), value2);
595 guint new_size = value1_length + (value2_length - skipped);
599 g_array_set_size (array, new_size);
603 /* size is 1, take single value in list and make it new dest */
604 single_dest = g_array_index (array, GValue, 0);
606 /* clean up old value allocations: must set array size to 0, because
607 * allocated values are not inited meaning g_value_unset() will not
609 g_array_set_size (array, 0);
610 g_value_unset (dest);
612 /* the single value is our new result */
619 * gst_value_list_get_size:
620 * @value: a #GValue of type #GST_TYPE_LIST
622 * Gets the number of values contained in @value.
624 * Returns: the number of values
627 gst_value_list_get_size (const GValue * value)
629 g_return_val_if_fail (GST_VALUE_HOLDS_LIST (value), 0);
631 return ((GArray *) value->data[0].v_pointer)->len;
635 * gst_value_list_get_value:
636 * @value: a #GValue of type #GST_TYPE_LIST
637 * @index: index of value to get from the list
639 * Gets the value that is a member of the list contained in @value and
640 * has the index @index.
642 * Returns: (transfer none): the value at the given index
645 gst_value_list_get_value (const GValue * value, guint index)
647 g_return_val_if_fail (GST_VALUE_HOLDS_LIST (value), NULL);
648 g_return_val_if_fail (index < VALUE_LIST_SIZE (value), NULL);
650 return (const GValue *) &g_array_index ((GArray *) value->data[0].v_pointer,
655 * gst_value_array_append_value:
656 * @value: a #GValue of type #GST_TYPE_ARRAY
657 * @append_value: the value to append
659 * Appends @append_value to the GstValueArray in @value.
662 gst_value_array_append_value (GValue * value, const GValue * append_value)
666 g_return_if_fail (GST_VALUE_HOLDS_ARRAY (value));
667 g_return_if_fail (G_IS_VALUE (append_value));
668 g_return_if_fail (gst_value_list_or_array_are_compatible (value,
671 gst_value_init_and_copy (&val, append_value);
672 g_array_append_vals ((GArray *) value->data[0].v_pointer, &val, 1);
676 gst_value_array_append_and_take_value (GValue * value, GValue * append_value)
678 g_array_append_vals ((GArray *) value->data[0].v_pointer, append_value, 1);
679 memset (append_value, 0, sizeof (GValue));
683 * gst_value_array_prepend_value:
684 * @value: a #GValue of type #GST_TYPE_ARRAY
685 * @prepend_value: the value to prepend
687 * Prepends @prepend_value to the GstValueArray in @value.
690 gst_value_array_prepend_value (GValue * value, const GValue * prepend_value)
694 g_return_if_fail (GST_VALUE_HOLDS_ARRAY (value));
695 g_return_if_fail (G_IS_VALUE (prepend_value));
696 g_return_if_fail (gst_value_list_or_array_are_compatible (value,
699 gst_value_init_and_copy (&val, prepend_value);
700 g_array_prepend_vals ((GArray *) value->data[0].v_pointer, &val, 1);
704 * gst_value_array_get_size:
705 * @value: a #GValue of type #GST_TYPE_ARRAY
707 * Gets the number of values contained in @value.
709 * Returns: the number of values
712 gst_value_array_get_size (const GValue * value)
714 g_return_val_if_fail (GST_VALUE_HOLDS_ARRAY (value), 0);
716 return ((GArray *) value->data[0].v_pointer)->len;
720 * gst_value_array_get_value:
721 * @value: a #GValue of type #GST_TYPE_ARRAY
722 * @index: index of value to get from the array
724 * Gets the value that is a member of the array contained in @value and
725 * has the index @index.
727 * Returns: (transfer none): the value at the given index
730 gst_value_array_get_value (const GValue * value, guint index)
732 g_return_val_if_fail (GST_VALUE_HOLDS_ARRAY (value), NULL);
733 g_return_val_if_fail (index < gst_value_array_get_size (value), NULL);
735 return (const GValue *) &g_array_index ((GArray *) value->data[0].v_pointer,
740 gst_value_transform_list_string (const GValue * src_value, GValue * dest_value)
742 gst_value_transform_any_list_string (src_value, dest_value, "{ ", " }");
746 gst_value_transform_array_string (const GValue * src_value, GValue * dest_value)
748 gst_value_transform_any_list_string (src_value, dest_value, "< ", " >");
751 /* Do an unordered compare of the contents of a list */
753 gst_value_compare_list (const GValue * value1, const GValue * value2)
756 GArray *array1 = value1->data[0].v_pointer;
757 GArray *array2 = value2->data[0].v_pointer;
762 GstValueCompareFunc compare;
764 /* get length and do initial length check. */
766 if (len != array2->len)
767 return GST_VALUE_UNORDERED;
769 /* place to mark removed value indices of array2 */
770 removed = g_newa (guint8, len);
771 memset (removed, 0, len);
774 /* loop over array1, all items should be in array2. When we find an
775 * item in array2, remove it from array2 by marking it as removed */
776 for (i = 0; i < len; i++) {
777 v1 = &g_array_index (array1, GValue, i);
778 if ((compare = gst_value_get_compare_func (v1))) {
779 for (j = 0; j < len; j++) {
780 /* item is removed, we can skip it */
783 v2 = &g_array_index (array2, GValue, j);
784 if (gst_value_compare_with_func (v1, v2, compare) == GST_VALUE_EQUAL) {
785 /* mark item as removed now that we found it in array2 and
786 * decrement the number of remaining items in array2. */
792 /* item in array1 and not in array2, UNORDERED */
794 return GST_VALUE_UNORDERED;
796 return GST_VALUE_UNORDERED;
798 /* if not all items were removed, array2 contained something not in array1 */
800 return GST_VALUE_UNORDERED;
802 /* arrays are equal */
803 return GST_VALUE_EQUAL;
806 /* Perform an ordered comparison of the contents of an array */
808 gst_value_compare_array (const GValue * value1, const GValue * value2)
811 GArray *array1 = value1->data[0].v_pointer;
812 GArray *array2 = value2->data[0].v_pointer;
813 guint len = array1->len;
817 if (len != array2->len)
818 return GST_VALUE_UNORDERED;
820 for (i = 0; i < len; i++) {
821 v1 = &g_array_index (array1, GValue, i);
822 v2 = &g_array_index (array2, GValue, i);
823 if (gst_value_compare (v1, v2) != GST_VALUE_EQUAL)
824 return GST_VALUE_UNORDERED;
827 return GST_VALUE_EQUAL;
831 gst_value_serialize_list (const GValue * value)
833 return gst_value_serialize_any_list (value, "{ ", " }");
837 gst_value_deserialize_list (GValue * dest, const gchar * s)
839 g_warning ("gst_value_deserialize_list: unimplemented");
844 gst_value_serialize_array (const GValue * value)
846 return gst_value_serialize_any_list (value, "< ", " >");
850 gst_value_deserialize_array (GValue * dest, const gchar * s)
852 g_warning ("gst_value_deserialize_array: unimplemented");
859 * Values in the range are defined as any value greater or equal
860 * to min*step, AND lesser or equal to max*step.
861 * For step == 1, this falls back to the traditional range semantics.
864 #define INT_RANGE_MIN(v) (((gint *)((v)->data[0].v_pointer))[0])
865 #define INT_RANGE_MAX(v) (((gint *)((v)->data[0].v_pointer))[1])
866 #define INT_RANGE_STEP(v) (((gint *)((v)->data[0].v_pointer))[2])
869 gst_value_init_int_range (GValue * value)
871 gint *vals = g_slice_alloc0 (3 * sizeof (gint));
872 value->data[0].v_pointer = vals;
873 INT_RANGE_MIN (value) = 0;
874 INT_RANGE_MAX (value) = 0;
875 INT_RANGE_STEP (value) = 1;
879 gst_value_free_int_range (GValue * value)
881 g_return_if_fail (GST_VALUE_HOLDS_INT_RANGE (value));
882 g_slice_free1 (3 * sizeof (gint), value->data[0].v_pointer);
883 value->data[0].v_pointer = NULL;
887 gst_value_copy_int_range (const GValue * src_value, GValue * dest_value)
889 gint *vals = (gint *) dest_value->data[0].v_pointer;
890 gint *src_vals = (gint *) src_value->data[0].v_pointer;
893 gst_value_init_int_range (dest_value);
895 if (src_vals != NULL) {
896 INT_RANGE_MIN (dest_value) = INT_RANGE_MIN (src_value);
897 INT_RANGE_MAX (dest_value) = INT_RANGE_MAX (src_value);
898 INT_RANGE_STEP (dest_value) = INT_RANGE_STEP (src_value);
903 gst_value_collect_int_range (GValue * value, guint n_collect_values,
904 GTypeCValue * collect_values, guint collect_flags)
906 gint *vals = value->data[0].v_pointer;
908 if (n_collect_values != 2)
909 return g_strdup_printf ("not enough value locations for `%s' passed",
910 G_VALUE_TYPE_NAME (value));
911 if (collect_values[0].v_int >= collect_values[1].v_int)
912 return g_strdup_printf ("range start is not smaller than end for `%s'",
913 G_VALUE_TYPE_NAME (value));
916 gst_value_init_int_range (value);
919 gst_value_set_int_range_step (value, collect_values[0].v_int,
920 collect_values[1].v_int, 1);
926 gst_value_lcopy_int_range (const GValue * value, guint n_collect_values,
927 GTypeCValue * collect_values, guint collect_flags)
929 guint32 *int_range_start = collect_values[0].v_pointer;
930 guint32 *int_range_end = collect_values[1].v_pointer;
931 guint32 *int_range_step = collect_values[2].v_pointer;
932 gint *vals = (gint *) value->data[0].v_pointer;
934 if (!int_range_start)
935 return g_strdup_printf ("start value location for `%s' passed as NULL",
936 G_VALUE_TYPE_NAME (value));
938 return g_strdup_printf ("end value location for `%s' passed as NULL",
939 G_VALUE_TYPE_NAME (value));
941 return g_strdup_printf ("step value location for `%s' passed as NULL",
942 G_VALUE_TYPE_NAME (value));
944 if (G_UNLIKELY (vals == NULL)) {
945 return g_strdup_printf ("Uninitialised `%s' passed",
946 G_VALUE_TYPE_NAME (value));
949 *int_range_start = INT_RANGE_MIN (value);
950 *int_range_end = INT_RANGE_MAX (value);
951 *int_range_step = INT_RANGE_STEP (value);
957 * gst_value_set_int_range_step:
958 * @value: a GValue initialized to GST_TYPE_INT_RANGE
959 * @start: the start of the range
960 * @end: the end of the range
961 * @step: the step of the range
963 * Sets @value to the range specified by @start, @end and @step.
966 gst_value_set_int_range_step (GValue * value, gint start, gint end, gint step)
968 g_return_if_fail (GST_VALUE_HOLDS_INT_RANGE (value));
969 g_return_if_fail (start < end);
970 g_return_if_fail (step > 0);
971 g_return_if_fail (start % step == 0);
972 g_return_if_fail (end % step == 0);
974 INT_RANGE_MIN (value) = start / step;
975 INT_RANGE_MAX (value) = end / step;
976 INT_RANGE_STEP (value) = step;
980 * gst_value_set_int_range:
981 * @value: a GValue initialized to GST_TYPE_INT_RANGE
982 * @start: the start of the range
983 * @end: the end of the range
985 * Sets @value to the range specified by @start and @end.
988 gst_value_set_int_range (GValue * value, gint start, gint end)
990 gst_value_set_int_range_step (value, start, end, 1);
994 * gst_value_get_int_range_min:
995 * @value: a GValue initialized to GST_TYPE_INT_RANGE
997 * Gets the minimum of the range specified by @value.
999 * Returns: the minimum of the range
1002 gst_value_get_int_range_min (const GValue * value)
1004 g_return_val_if_fail (GST_VALUE_HOLDS_INT_RANGE (value), 0);
1006 return INT_RANGE_MIN (value) * INT_RANGE_STEP (value);
1010 * gst_value_get_int_range_max:
1011 * @value: a GValue initialized to GST_TYPE_INT_RANGE
1013 * Gets the maximum of the range specified by @value.
1015 * Returns: the maxumum of the range
1018 gst_value_get_int_range_max (const GValue * value)
1020 g_return_val_if_fail (GST_VALUE_HOLDS_INT_RANGE (value), 0);
1022 return INT_RANGE_MAX (value) * INT_RANGE_STEP (value);
1026 * gst_value_get_int_range_step:
1027 * @value: a GValue initialized to GST_TYPE_INT_RANGE
1029 * Gets the step of the range specified by @value.
1031 * Returns: the step of the range
1034 gst_value_get_int_range_step (const GValue * value)
1036 g_return_val_if_fail (GST_VALUE_HOLDS_INT_RANGE (value), 0);
1038 return INT_RANGE_STEP (value);
1042 gst_value_transform_int_range_string (const GValue * src_value,
1043 GValue * dest_value)
1045 if (INT_RANGE_STEP (src_value) == 1)
1046 dest_value->data[0].v_pointer = g_strdup_printf ("[%d,%d]",
1047 INT_RANGE_MIN (src_value), INT_RANGE_MAX (src_value));
1049 dest_value->data[0].v_pointer = g_strdup_printf ("[%d,%d,%d]",
1050 INT_RANGE_MIN (src_value) * INT_RANGE_STEP (src_value),
1051 INT_RANGE_MAX (src_value) * INT_RANGE_STEP (src_value),
1052 INT_RANGE_STEP (src_value));
1056 gst_value_compare_int_range (const GValue * value1, const GValue * value2)
1058 /* calculate the number of values in each range */
1059 gint n1 = INT_RANGE_MAX (value1) - INT_RANGE_MIN (value1) + 1;
1060 gint n2 = INT_RANGE_MAX (value2) - INT_RANGE_MIN (value2) + 1;
1062 /* they must be equal */
1064 return GST_VALUE_UNORDERED;
1066 /* if empty, equal */
1068 return GST_VALUE_EQUAL;
1070 /* if more than one value, then it is only equal if the step is equal
1071 and bounds lie on the same value */
1073 if (INT_RANGE_STEP (value1) == INT_RANGE_STEP (value2) &&
1074 INT_RANGE_STEP (value1) == INT_RANGE_STEP (value2) &&
1075 INT_RANGE_STEP (value1) == INT_RANGE_STEP (value2)) {
1076 return GST_VALUE_EQUAL;
1078 return GST_VALUE_UNORDERED;
1080 /* if just one, only if the value is equal */
1081 if (INT_RANGE_MIN (value1) == INT_RANGE_MIN (value2))
1082 return GST_VALUE_EQUAL;
1083 return GST_VALUE_UNORDERED;
1088 gst_value_serialize_int_range (const GValue * value)
1090 if (INT_RANGE_STEP (value) == 1)
1091 return g_strdup_printf ("[ %d, %d ]", INT_RANGE_MIN (value),
1092 INT_RANGE_MAX (value));
1094 return g_strdup_printf ("[ %d, %d, %d ]",
1095 INT_RANGE_MIN (value) * INT_RANGE_STEP (value),
1096 INT_RANGE_MAX (value) * INT_RANGE_STEP (value), INT_RANGE_STEP (value));
1100 gst_value_deserialize_int_range (GValue * dest, const gchar * s)
1102 g_warning ("unimplemented");
1109 * Values in the range are defined as any value greater or equal
1110 * to min*step, AND lesser or equal to max*step.
1111 * For step == 1, this falls back to the traditional range semantics.
1114 #define INT64_RANGE_MIN(v) (((gint64 *)((v)->data[0].v_pointer))[0])
1115 #define INT64_RANGE_MAX(v) (((gint64 *)((v)->data[0].v_pointer))[1])
1116 #define INT64_RANGE_STEP(v) (((gint64 *)((v)->data[0].v_pointer))[2])
1119 gst_value_init_int64_range (GValue * value)
1121 gint64 *vals = g_slice_alloc0 (3 * sizeof (gint64));
1122 value->data[0].v_pointer = vals;
1123 INT64_RANGE_MIN (value) = 0;
1124 INT64_RANGE_MAX (value) = 0;
1125 INT64_RANGE_STEP (value) = 1;
1129 gst_value_free_int64_range (GValue * value)
1131 g_return_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value));
1132 g_slice_free1 (3 * sizeof (gint64), value->data[0].v_pointer);
1133 value->data[0].v_pointer = NULL;
1137 gst_value_copy_int64_range (const GValue * src_value, GValue * dest_value)
1139 gint64 *vals = (gint64 *) dest_value->data[0].v_pointer;
1140 gint64 *src_vals = (gint64 *) src_value->data[0].v_pointer;
1143 gst_value_init_int64_range (dest_value);
1146 if (src_vals != NULL) {
1147 INT64_RANGE_MIN (dest_value) = INT64_RANGE_MIN (src_value);
1148 INT64_RANGE_MAX (dest_value) = INT64_RANGE_MAX (src_value);
1149 INT64_RANGE_STEP (dest_value) = INT64_RANGE_STEP (src_value);
1154 gst_value_collect_int64_range (GValue * value, guint n_collect_values,
1155 GTypeCValue * collect_values, guint collect_flags)
1157 gint64 *vals = value->data[0].v_pointer;
1159 if (n_collect_values != 2)
1160 return g_strdup_printf ("not enough value locations for `%s' passed",
1161 G_VALUE_TYPE_NAME (value));
1162 if (collect_values[0].v_int64 >= collect_values[1].v_int64)
1163 return g_strdup_printf ("range start is not smaller than end for `%s'",
1164 G_VALUE_TYPE_NAME (value));
1167 gst_value_init_int64_range (value);
1170 gst_value_set_int64_range_step (value, collect_values[0].v_int64,
1171 collect_values[1].v_int64, 1);
1177 gst_value_lcopy_int64_range (const GValue * value, guint n_collect_values,
1178 GTypeCValue * collect_values, guint collect_flags)
1180 guint64 *int_range_start = collect_values[0].v_pointer;
1181 guint64 *int_range_end = collect_values[1].v_pointer;
1182 guint64 *int_range_step = collect_values[2].v_pointer;
1183 gint64 *vals = (gint64 *) value->data[0].v_pointer;
1185 if (!int_range_start)
1186 return g_strdup_printf ("start value location for `%s' passed as NULL",
1187 G_VALUE_TYPE_NAME (value));
1189 return g_strdup_printf ("end value location for `%s' passed as NULL",
1190 G_VALUE_TYPE_NAME (value));
1191 if (!int_range_step)
1192 return g_strdup_printf ("step value location for `%s' passed as NULL",
1193 G_VALUE_TYPE_NAME (value));
1195 if (G_UNLIKELY (vals == NULL)) {
1196 return g_strdup_printf ("Uninitialised `%s' passed",
1197 G_VALUE_TYPE_NAME (value));
1200 *int_range_start = INT64_RANGE_MIN (value);
1201 *int_range_end = INT64_RANGE_MAX (value);
1202 *int_range_step = INT64_RANGE_STEP (value);
1208 * gst_value_set_int64_range_step:
1209 * @value: a GValue initialized to GST_TYPE_INT64_RANGE
1210 * @start: the start of the range
1211 * @end: the end of the range
1212 * @step: the step of the range
1214 * Sets @value to the range specified by @start, @end and @step.
1217 gst_value_set_int64_range_step (GValue * value, gint64 start, gint64 end,
1220 g_return_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value));
1221 g_return_if_fail (start < end);
1222 g_return_if_fail (step > 0);
1223 g_return_if_fail (start % step == 0);
1224 g_return_if_fail (end % step == 0);
1226 INT64_RANGE_MIN (value) = start / step;
1227 INT64_RANGE_MAX (value) = end / step;
1228 INT64_RANGE_STEP (value) = step;
1232 * gst_value_set_int64_range:
1233 * @value: a GValue initialized to GST_TYPE_INT64_RANGE
1234 * @start: the start of the range
1235 * @end: the end of the range
1237 * Sets @value to the range specified by @start and @end.
1240 gst_value_set_int64_range (GValue * value, gint64 start, gint64 end)
1242 gst_value_set_int64_range_step (value, start, end, 1);
1246 * gst_value_get_int64_range_min:
1247 * @value: a GValue initialized to GST_TYPE_INT64_RANGE
1249 * Gets the minimum of the range specified by @value.
1251 * Returns: the minimum of the range
1254 gst_value_get_int64_range_min (const GValue * value)
1256 g_return_val_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value), 0);
1258 return INT64_RANGE_MIN (value) * INT64_RANGE_STEP (value);
1262 * gst_value_get_int64_range_max:
1263 * @value: a GValue initialized to GST_TYPE_INT64_RANGE
1265 * Gets the maximum of the range specified by @value.
1267 * Returns: the maxumum of the range
1270 gst_value_get_int64_range_max (const GValue * value)
1272 g_return_val_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value), 0);
1274 return INT64_RANGE_MAX (value) * INT64_RANGE_STEP (value);
1278 * gst_value_get_int64_range_step:
1279 * @value: a GValue initialized to GST_TYPE_INT64_RANGE
1281 * Gets the step of the range specified by @value.
1283 * Returns: the step of the range
1286 gst_value_get_int64_range_step (const GValue * value)
1288 g_return_val_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value), 0);
1290 return INT64_RANGE_STEP (value);
1294 gst_value_transform_int64_range_string (const GValue * src_value,
1295 GValue * dest_value)
1297 if (INT64_RANGE_STEP (src_value) == 1)
1298 dest_value->data[0].v_pointer =
1299 g_strdup_printf ("(gint64)[%" G_GINT64_FORMAT ",%" G_GINT64_FORMAT "]",
1300 INT64_RANGE_MIN (src_value), INT64_RANGE_MAX (src_value));
1302 dest_value->data[0].v_pointer =
1303 g_strdup_printf ("(gint64)[%" G_GINT64_FORMAT ",%" G_GINT64_FORMAT
1304 ",%" G_GINT64_FORMAT "]",
1305 INT64_RANGE_MIN (src_value) * INT64_RANGE_STEP (src_value),
1306 INT64_RANGE_MAX (src_value) * INT64_RANGE_STEP (src_value),
1307 INT64_RANGE_STEP (src_value));
1311 gst_value_compare_int64_range (const GValue * value1, const GValue * value2)
1313 /* calculate the number of values in each range */
1314 gint64 n1 = INT64_RANGE_MAX (value1) - INT64_RANGE_MIN (value1) + 1;
1315 gint64 n2 = INT64_RANGE_MAX (value2) - INT64_RANGE_MIN (value2) + 1;
1317 /* they must be equal */
1319 return GST_VALUE_UNORDERED;
1321 /* if empty, equal */
1323 return GST_VALUE_EQUAL;
1325 /* if more than one value, then it is only equal if the step is equal
1326 and bounds lie on the same value */
1328 if (INT64_RANGE_STEP (value1) == INT64_RANGE_STEP (value2) &&
1329 INT64_RANGE_STEP (value1) == INT64_RANGE_STEP (value2) &&
1330 INT64_RANGE_STEP (value1) == INT64_RANGE_STEP (value2)) {
1331 return GST_VALUE_EQUAL;
1333 return GST_VALUE_UNORDERED;
1335 /* if just one, only if the value is equal */
1336 if (INT64_RANGE_MIN (value1) == INT64_RANGE_MIN (value2))
1337 return GST_VALUE_EQUAL;
1338 return GST_VALUE_UNORDERED;
1343 gst_value_serialize_int64_range (const GValue * value)
1345 if (INT64_RANGE_STEP (value) == 1)
1346 return g_strdup_printf ("[ %" G_GINT64_FORMAT ", %" G_GINT64_FORMAT " ]",
1347 INT64_RANGE_MIN (value), INT64_RANGE_MAX (value));
1349 return g_strdup_printf ("[ %" G_GINT64_FORMAT ", %" G_GINT64_FORMAT ", %"
1350 G_GINT64_FORMAT " ]",
1351 INT64_RANGE_MIN (value) * INT64_RANGE_STEP (value),
1352 INT64_RANGE_MAX (value) * INT64_RANGE_STEP (value),
1353 INT64_RANGE_STEP (value));
1357 gst_value_deserialize_int64_range (GValue * dest, const gchar * s)
1359 g_warning ("unimplemented");
1368 gst_value_init_double_range (GValue * value)
1370 value->data[0].v_double = 0;
1371 value->data[1].v_double = 0;
1375 gst_value_copy_double_range (const GValue * src_value, GValue * dest_value)
1377 dest_value->data[0].v_double = src_value->data[0].v_double;
1378 dest_value->data[1].v_double = src_value->data[1].v_double;
1382 gst_value_collect_double_range (GValue * value, guint n_collect_values,
1383 GTypeCValue * collect_values, guint collect_flags)
1385 if (n_collect_values != 2)
1386 return g_strdup_printf ("not enough value locations for `%s' passed",
1387 G_VALUE_TYPE_NAME (value));
1388 if (collect_values[0].v_double >= collect_values[1].v_double)
1389 return g_strdup_printf ("range start is not smaller than end for `%s'",
1390 G_VALUE_TYPE_NAME (value));
1392 value->data[0].v_double = collect_values[0].v_double;
1393 value->data[1].v_double = collect_values[1].v_double;
1399 gst_value_lcopy_double_range (const GValue * value, guint n_collect_values,
1400 GTypeCValue * collect_values, guint collect_flags)
1402 gdouble *double_range_start = collect_values[0].v_pointer;
1403 gdouble *double_range_end = collect_values[1].v_pointer;
1405 if (!double_range_start)
1406 return g_strdup_printf ("start value location for `%s' passed as NULL",
1407 G_VALUE_TYPE_NAME (value));
1408 if (!double_range_end)
1409 return g_strdup_printf ("end value location for `%s' passed as NULL",
1410 G_VALUE_TYPE_NAME (value));
1412 *double_range_start = value->data[0].v_double;
1413 *double_range_end = value->data[1].v_double;
1419 * gst_value_set_double_range:
1420 * @value: a GValue initialized to GST_TYPE_DOUBLE_RANGE
1421 * @start: the start of the range
1422 * @end: the end of the range
1424 * Sets @value to the range specified by @start and @end.
1427 gst_value_set_double_range (GValue * value, gdouble start, gdouble end)
1429 g_return_if_fail (GST_VALUE_HOLDS_DOUBLE_RANGE (value));
1430 g_return_if_fail (start < end);
1432 value->data[0].v_double = start;
1433 value->data[1].v_double = end;
1437 * gst_value_get_double_range_min:
1438 * @value: a GValue initialized to GST_TYPE_DOUBLE_RANGE
1440 * Gets the minimum of the range specified by @value.
1442 * Returns: the minimum of the range
1445 gst_value_get_double_range_min (const GValue * value)
1447 g_return_val_if_fail (GST_VALUE_HOLDS_DOUBLE_RANGE (value), 0);
1449 return value->data[0].v_double;
1453 * gst_value_get_double_range_max:
1454 * @value: a GValue initialized to GST_TYPE_DOUBLE_RANGE
1456 * Gets the maximum of the range specified by @value.
1458 * Returns: the maxumum of the range
1461 gst_value_get_double_range_max (const GValue * value)
1463 g_return_val_if_fail (GST_VALUE_HOLDS_DOUBLE_RANGE (value), 0);
1465 return value->data[1].v_double;
1469 gst_value_transform_double_range_string (const GValue * src_value,
1470 GValue * dest_value)
1472 gchar s1[G_ASCII_DTOSTR_BUF_SIZE], s2[G_ASCII_DTOSTR_BUF_SIZE];
1474 dest_value->data[0].v_pointer = g_strdup_printf ("[%s,%s]",
1475 g_ascii_dtostr (s1, G_ASCII_DTOSTR_BUF_SIZE,
1476 src_value->data[0].v_double),
1477 g_ascii_dtostr (s2, G_ASCII_DTOSTR_BUF_SIZE,
1478 src_value->data[1].v_double));
1482 gst_value_compare_double_range (const GValue * value1, const GValue * value2)
1484 if (value2->data[0].v_double == value1->data[0].v_double &&
1485 value2->data[0].v_double == value1->data[0].v_double)
1486 return GST_VALUE_EQUAL;
1487 return GST_VALUE_UNORDERED;
1491 gst_value_serialize_double_range (const GValue * value)
1493 gchar d1[G_ASCII_DTOSTR_BUF_SIZE];
1494 gchar d2[G_ASCII_DTOSTR_BUF_SIZE];
1496 g_ascii_dtostr (d1, G_ASCII_DTOSTR_BUF_SIZE, value->data[0].v_double);
1497 g_ascii_dtostr (d2, G_ASCII_DTOSTR_BUF_SIZE, value->data[1].v_double);
1498 return g_strdup_printf ("[ %s, %s ]", d1, d2);
1502 gst_value_deserialize_double_range (GValue * dest, const gchar * s)
1504 g_warning ("unimplemented");
1513 gst_value_init_fraction_range (GValue * value)
1518 ftype = GST_TYPE_FRACTION;
1520 value->data[0].v_pointer = vals = g_slice_alloc0 (2 * sizeof (GValue));
1521 g_value_init (&vals[0], ftype);
1522 g_value_init (&vals[1], ftype);
1526 gst_value_free_fraction_range (GValue * value)
1528 GValue *vals = (GValue *) value->data[0].v_pointer;
1531 /* we know the two values contain fractions without internal allocs */
1532 /* g_value_unset (&vals[0]); */
1533 /* g_value_unset (&vals[1]); */
1534 g_slice_free1 (2 * sizeof (GValue), vals);
1535 value->data[0].v_pointer = NULL;
1540 gst_value_copy_fraction_range (const GValue * src_value, GValue * dest_value)
1542 GValue *vals = (GValue *) dest_value->data[0].v_pointer;
1543 GValue *src_vals = (GValue *) src_value->data[0].v_pointer;
1546 gst_value_init_fraction_range (dest_value);
1547 vals = dest_value->data[0].v_pointer;
1549 if (src_vals != NULL) {
1550 g_value_copy (&src_vals[0], &vals[0]);
1551 g_value_copy (&src_vals[1], &vals[1]);
1556 gst_value_collect_fraction_range (GValue * value, guint n_collect_values,
1557 GTypeCValue * collect_values, guint collect_flags)
1559 GValue *vals = (GValue *) value->data[0].v_pointer;
1561 if (n_collect_values != 4)
1562 return g_strdup_printf ("not enough value locations for `%s' passed",
1563 G_VALUE_TYPE_NAME (value));
1564 if (collect_values[1].v_int == 0)
1565 return g_strdup_printf ("passed '0' as first denominator for `%s'",
1566 G_VALUE_TYPE_NAME (value));
1567 if (collect_values[3].v_int == 0)
1568 return g_strdup_printf ("passed '0' as second denominator for `%s'",
1569 G_VALUE_TYPE_NAME (value));
1570 if (gst_util_fraction_compare (collect_values[0].v_int,
1571 collect_values[1].v_int, collect_values[2].v_int,
1572 collect_values[3].v_int) >= 0)
1573 return g_strdup_printf ("range start is not smaller than end for `%s'",
1574 G_VALUE_TYPE_NAME (value));
1577 gst_value_init_fraction_range (value);
1578 vals = value->data[0].v_pointer;
1581 gst_value_set_fraction (&vals[0], collect_values[0].v_int,
1582 collect_values[1].v_int);
1583 gst_value_set_fraction (&vals[1], collect_values[2].v_int,
1584 collect_values[3].v_int);
1590 gst_value_lcopy_fraction_range (const GValue * value, guint n_collect_values,
1591 GTypeCValue * collect_values, guint collect_flags)
1594 gint *dest_values[4];
1595 GValue *vals = (GValue *) value->data[0].v_pointer;
1597 if (G_UNLIKELY (n_collect_values != 4))
1598 return g_strdup_printf ("not enough value locations for `%s' passed",
1599 G_VALUE_TYPE_NAME (value));
1601 for (i = 0; i < 4; i++) {
1602 if (G_UNLIKELY (collect_values[i].v_pointer == NULL)) {
1603 return g_strdup_printf ("value location for `%s' passed as NULL",
1604 G_VALUE_TYPE_NAME (value));
1606 dest_values[i] = collect_values[i].v_pointer;
1609 if (G_UNLIKELY (vals == NULL)) {
1610 return g_strdup_printf ("Uninitialised `%s' passed",
1611 G_VALUE_TYPE_NAME (value));
1614 dest_values[0][0] = gst_value_get_fraction_numerator (&vals[0]);
1615 dest_values[1][0] = gst_value_get_fraction_denominator (&vals[0]);
1616 dest_values[2][0] = gst_value_get_fraction_numerator (&vals[1]);
1617 dest_values[3][0] = gst_value_get_fraction_denominator (&vals[1]);
1622 * gst_value_set_fraction_range:
1623 * @value: a GValue initialized to GST_TYPE_FRACTION_RANGE
1624 * @start: the start of the range (a GST_TYPE_FRACTION GValue)
1625 * @end: the end of the range (a GST_TYPE_FRACTION GValue)
1627 * Sets @value to the range specified by @start and @end.
1630 gst_value_set_fraction_range (GValue * value, const GValue * start,
1635 g_return_if_fail (GST_VALUE_HOLDS_FRACTION_RANGE (value));
1636 g_return_if_fail (GST_VALUE_HOLDS_FRACTION (start));
1637 g_return_if_fail (GST_VALUE_HOLDS_FRACTION (end));
1638 g_return_if_fail (gst_util_fraction_compare (start->data[0].v_int,
1639 start->data[1].v_int, end->data[0].v_int, end->data[1].v_int) < 0);
1641 vals = (GValue *) value->data[0].v_pointer;
1643 gst_value_init_fraction_range (value);
1644 vals = value->data[0].v_pointer;
1646 g_value_copy (start, &vals[0]);
1647 g_value_copy (end, &vals[1]);
1651 * gst_value_set_fraction_range_full:
1652 * @value: a GValue initialized to GST_TYPE_FRACTION_RANGE
1653 * @numerator_start: the numerator start of the range
1654 * @denominator_start: the denominator start of the range
1655 * @numerator_end: the numerator end of the range
1656 * @denominator_end: the denominator end of the range
1658 * Sets @value to the range specified by @numerator_start/@denominator_start
1659 * and @numerator_end/@denominator_end.
1662 gst_value_set_fraction_range_full (GValue * value,
1663 gint numerator_start, gint denominator_start,
1664 gint numerator_end, gint denominator_end)
1666 GValue start = { 0 };
1669 g_return_if_fail (value != NULL);
1670 g_return_if_fail (denominator_start != 0);
1671 g_return_if_fail (denominator_end != 0);
1672 g_return_if_fail (gst_util_fraction_compare (numerator_start,
1673 denominator_start, numerator_end, denominator_end) < 0);
1675 g_value_init (&start, GST_TYPE_FRACTION);
1676 g_value_init (&end, GST_TYPE_FRACTION);
1678 gst_value_set_fraction (&start, numerator_start, denominator_start);
1679 gst_value_set_fraction (&end, numerator_end, denominator_end);
1680 gst_value_set_fraction_range (value, &start, &end);
1682 /* we know the two values contain fractions without internal allocs */
1683 /* g_value_unset (&start); */
1684 /* g_value_unset (&end); */
1688 * gst_value_get_fraction_range_min:
1689 * @value: a GValue initialized to GST_TYPE_FRACTION_RANGE
1691 * Gets the minimum of the range specified by @value.
1693 * Returns: the minimum of the range
1696 gst_value_get_fraction_range_min (const GValue * value)
1700 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION_RANGE (value), NULL);
1702 vals = (GValue *) value->data[0].v_pointer;
1711 * gst_value_get_fraction_range_max:
1712 * @value: a GValue initialized to GST_TYPE_FRACTION_RANGE
1714 * Gets the maximum of the range specified by @value.
1716 * Returns: the maximum of the range
1719 gst_value_get_fraction_range_max (const GValue * value)
1723 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION_RANGE (value), NULL);
1725 vals = (GValue *) value->data[0].v_pointer;
1734 gst_value_serialize_fraction_range (const GValue * value)
1736 GValue *vals = (GValue *) value->data[0].v_pointer;
1740 retval = g_strdup ("[ 0/1, 0/1 ]");
1744 start = gst_value_serialize_fraction (&vals[0]);
1745 end = gst_value_serialize_fraction (&vals[1]);
1747 retval = g_strdup_printf ("[ %s, %s ]", start, end);
1756 gst_value_transform_fraction_range_string (const GValue * src_value,
1757 GValue * dest_value)
1759 dest_value->data[0].v_pointer =
1760 gst_value_serialize_fraction_range (src_value);
1764 gst_value_compare_fraction_range (const GValue * value1, const GValue * value2)
1766 GValue *vals1, *vals2;
1767 GstValueCompareFunc compare;
1769 if (value2->data[0].v_pointer == value1->data[0].v_pointer)
1770 return GST_VALUE_EQUAL; /* Only possible if both are NULL */
1772 if (value2->data[0].v_pointer == NULL || value1->data[0].v_pointer == NULL)
1773 return GST_VALUE_UNORDERED;
1775 vals1 = (GValue *) value1->data[0].v_pointer;
1776 vals2 = (GValue *) value2->data[0].v_pointer;
1777 if ((compare = gst_value_get_compare_func (&vals1[0]))) {
1778 if (gst_value_compare_with_func (&vals1[0], &vals2[0], compare) ==
1780 gst_value_compare_with_func (&vals1[1], &vals2[1], compare) ==
1782 return GST_VALUE_EQUAL;
1784 return GST_VALUE_UNORDERED;
1788 gst_value_deserialize_fraction_range (GValue * dest, const gchar * s)
1790 g_warning ("unimplemented");
1799 * gst_value_set_caps:
1800 * @value: a GValue initialized to GST_TYPE_CAPS
1801 * @caps: (transfer none): the caps to set the value to
1803 * Sets the contents of @value to @caps. A reference to the
1804 * provided @caps will be taken by the @value.
1807 gst_value_set_caps (GValue * value, const GstCaps * caps)
1809 g_return_if_fail (G_IS_VALUE (value));
1810 g_return_if_fail (G_VALUE_TYPE (value) == GST_TYPE_CAPS);
1811 g_return_if_fail (caps == NULL || GST_IS_CAPS (caps));
1813 g_value_set_boxed (value, caps);
1817 * gst_value_get_caps:
1818 * @value: a GValue initialized to GST_TYPE_CAPS
1820 * Gets the contents of @value. The reference count of the returned
1821 * #GstCaps will not be modified, therefore the caller must take one
1822 * before getting rid of the @value.
1824 * Returns: (transfer none): the contents of @value
1827 gst_value_get_caps (const GValue * value)
1829 g_return_val_if_fail (G_IS_VALUE (value), NULL);
1830 g_return_val_if_fail (G_VALUE_TYPE (value) == GST_TYPE_CAPS, NULL);
1832 return (GstCaps *) g_value_get_boxed (value);
1836 gst_value_serialize_caps (const GValue * value)
1838 GstCaps *caps = g_value_get_boxed (value);
1840 return gst_caps_to_string (caps);
1844 gst_value_deserialize_caps (GValue * dest, const gchar * s)
1848 caps = gst_caps_from_string (s);
1851 g_value_take_boxed (dest, caps);
1862 gst_value_serialize_segment_internal (const GValue * value, gboolean escape)
1864 GstSegment *seg = g_value_get_boxed (value);
1868 s = gst_structure_new ("GstSegment",
1869 "flags", GST_TYPE_SEGMENT_FLAGS, seg->flags,
1870 "rate", G_TYPE_DOUBLE, seg->rate,
1871 "applied-rate", G_TYPE_DOUBLE, seg->applied_rate,
1872 "format", GST_TYPE_FORMAT, seg->format,
1873 "base", G_TYPE_UINT64, seg->base,
1874 "offset", G_TYPE_UINT64, seg->offset,
1875 "start", G_TYPE_UINT64, seg->start,
1876 "stop", G_TYPE_UINT64, seg->stop,
1877 "time", G_TYPE_UINT64, seg->time,
1878 "position", G_TYPE_UINT64, seg->position,
1879 "duration", G_TYPE_UINT64, seg->duration, NULL);
1880 t = gst_structure_to_string (s);
1882 res = g_strdup_printf ("\"%s\"", t);
1887 gst_structure_free (s);
1893 gst_value_serialize_segment (const GValue * value)
1895 return gst_value_serialize_segment_internal (value, TRUE);
1899 gst_value_deserialize_segment (GValue * dest, const gchar * s)
1905 str = gst_structure_from_string (s, NULL);
1909 res = gst_structure_get (str,
1910 "flags", GST_TYPE_SEGMENT_FLAGS, &seg.flags,
1911 "rate", G_TYPE_DOUBLE, &seg.rate,
1912 "applied-rate", G_TYPE_DOUBLE, &seg.applied_rate,
1913 "format", GST_TYPE_FORMAT, &seg.format,
1914 "base", G_TYPE_UINT64, &seg.base,
1915 "offset", G_TYPE_UINT64, &seg.offset,
1916 "start", G_TYPE_UINT64, &seg.start,
1917 "stop", G_TYPE_UINT64, &seg.stop,
1918 "time", G_TYPE_UINT64, &seg.time,
1919 "position", G_TYPE_UINT64, &seg.position,
1920 "duration", G_TYPE_UINT64, &seg.duration, NULL);
1921 gst_structure_free (str);
1924 g_value_set_boxed (dest, &seg);
1934 * gst_value_set_structure:
1935 * @value: a GValue initialized to GST_TYPE_STRUCTURE
1936 * @structure: the structure to set the value to
1938 * Sets the contents of @value to @structure. The actual
1941 gst_value_set_structure (GValue * value, const GstStructure * structure)
1943 g_return_if_fail (G_IS_VALUE (value));
1944 g_return_if_fail (G_VALUE_TYPE (value) == GST_TYPE_STRUCTURE);
1945 g_return_if_fail (structure == NULL || GST_IS_STRUCTURE (structure));
1947 g_value_set_boxed (value, structure);
1951 * gst_value_get_structure:
1952 * @value: a GValue initialized to GST_TYPE_STRUCTURE
1954 * Gets the contents of @value.
1956 * Returns: (transfer none): the contents of @value
1958 const GstStructure *
1959 gst_value_get_structure (const GValue * value)
1961 g_return_val_if_fail (G_IS_VALUE (value), NULL);
1962 g_return_val_if_fail (G_VALUE_TYPE (value) == GST_TYPE_STRUCTURE, NULL);
1964 return (GstStructure *) g_value_get_boxed (value);
1968 gst_value_serialize_structure (const GValue * value)
1970 GstStructure *structure = g_value_get_boxed (value);
1972 return gst_string_take_and_wrap (gst_structure_to_string (structure));
1976 gst_value_deserialize_structure (GValue * dest, const gchar * s)
1978 GstStructure *structure;
1981 structure = gst_structure_from_string (s, NULL);
1983 gchar *str = gst_string_unwrap (s);
1985 if (G_UNLIKELY (!str))
1988 structure = gst_structure_from_string (str, NULL);
1992 if (G_LIKELY (structure)) {
1993 g_value_take_boxed (dest, structure);
2004 gst_value_deserialize_tag_list (GValue * dest, const gchar * s)
2006 GstTagList *taglist;
2009 taglist = gst_tag_list_new_from_string (s);
2011 gchar *str = gst_string_unwrap (s);
2013 if (G_UNLIKELY (!str))
2016 taglist = gst_tag_list_new_from_string (str);
2020 if (G_LIKELY (taglist != NULL)) {
2021 g_value_take_boxed (dest, taglist);
2028 gst_value_serialize_tag_list (const GValue * value)
2030 GstTagList *taglist = g_value_get_boxed (value);
2032 return gst_string_take_and_wrap (gst_tag_list_to_string (taglist));
2041 compare_buffer (GstBuffer * buf1, GstBuffer * buf2)
2044 GstMapInfo info1, info2;
2048 return GST_VALUE_EQUAL;
2050 size1 = gst_buffer_get_size (buf1);
2051 size2 = gst_buffer_get_size (buf2);
2054 return GST_VALUE_UNORDERED;
2057 return GST_VALUE_EQUAL;
2059 if (!gst_buffer_map (buf1, &info1, GST_MAP_READ))
2060 return GST_VALUE_UNORDERED;
2062 if (!gst_buffer_map (buf2, &info2, GST_MAP_READ)) {
2063 gst_buffer_unmap (buf1, &info1);
2064 return GST_VALUE_UNORDERED;
2067 mret = memcmp (info1.data, info2.data, info1.size);
2069 result = GST_VALUE_EQUAL;
2071 result = GST_VALUE_LESS_THAN;
2073 result = GST_VALUE_GREATER_THAN;
2075 gst_buffer_unmap (buf1, &info1);
2076 gst_buffer_unmap (buf2, &info2);
2082 gst_value_compare_buffer (const GValue * value1, const GValue * value2)
2084 GstBuffer *buf1 = gst_value_get_buffer (value1);
2085 GstBuffer *buf2 = gst_value_get_buffer (value2);
2087 return compare_buffer (buf1, buf2);
2091 gst_value_serialize_buffer (const GValue * value)
2099 buffer = gst_value_get_buffer (value);
2103 if (!gst_buffer_map (buffer, &info, GST_MAP_READ))
2108 string = g_malloc (info.size * 2 + 1);
2109 for (i = 0; i < info.size; i++) {
2110 sprintf (string + i * 2, "%02x", data[i]);
2112 string[info.size * 2] = 0;
2114 gst_buffer_unmap (buffer, &info);
2120 gst_value_deserialize_buffer (GValue * dest, const gchar * s)
2133 buffer = gst_buffer_new_allocate (NULL, len / 2, NULL);
2134 if (!gst_buffer_map (buffer, &info, GST_MAP_WRITE))
2138 for (i = 0; i < len / 2; i++) {
2139 if (!isxdigit ((int) s[i * 2]) || !isxdigit ((int) s[i * 2 + 1]))
2142 ts[0] = s[i * 2 + 0];
2143 ts[1] = s[i * 2 + 1];
2146 data[i] = (guint8) strtoul (ts, NULL, 16);
2148 gst_buffer_unmap (buffer, &info);
2150 gst_value_take_buffer (dest, buffer);
2165 gst_buffer_unref (buffer);
2166 gst_buffer_unmap (buffer, &info);
2175 /* This function is mostly used for comparing image/buffer tags in taglists */
2177 gst_value_compare_sample (const GValue * value1, const GValue * value2)
2179 GstBuffer *buf1 = gst_sample_get_buffer (gst_value_get_sample (value1));
2180 GstBuffer *buf2 = gst_sample_get_buffer (gst_value_get_sample (value2));
2182 /* FIXME: should we take into account anything else such as caps? */
2183 return compare_buffer (buf1, buf2);
2187 gst_value_serialize_sample (const GValue * value)
2189 const GstStructure *info_structure;
2190 GstSegment *segment;
2194 GValue val = { 0, };
2195 gchar *info_str, *caps_str, *tmp;
2196 gchar *buf_str, *seg_str, *s;
2198 sample = g_value_get_boxed (value);
2200 buffer = gst_sample_get_buffer (sample);
2202 g_value_init (&val, GST_TYPE_BUFFER);
2203 g_value_set_boxed (&val, buffer);
2204 buf_str = gst_value_serialize_buffer (&val);
2205 g_value_unset (&val);
2207 buf_str = g_strdup ("None");
2210 caps = gst_sample_get_caps (sample);
2212 tmp = gst_caps_to_string (caps);
2213 caps_str = g_base64_encode ((guchar *) tmp, strlen (tmp) + 1);
2214 g_strdelimit (caps_str, "=", '_');
2217 caps_str = g_strdup ("None");
2220 segment = gst_sample_get_segment (sample);
2222 g_value_init (&val, GST_TYPE_SEGMENT);
2223 g_value_set_boxed (&val, segment);
2224 tmp = gst_value_serialize_segment_internal (&val, FALSE);
2225 seg_str = g_base64_encode ((guchar *) tmp, strlen (tmp) + 1);
2226 g_strdelimit (seg_str, "=", '_');
2228 g_value_unset (&val);
2230 seg_str = g_strdup ("None");
2233 info_structure = gst_sample_get_info (sample);
2234 if (info_structure) {
2235 tmp = gst_structure_to_string (info_structure);
2236 info_str = g_base64_encode ((guchar *) tmp, strlen (tmp) + 1);
2237 g_strdelimit (info_str, "=", '_');
2240 info_str = g_strdup ("None");
2243 s = g_strconcat (buf_str, ":", caps_str, ":", seg_str, ":", info_str, NULL);
2253 gst_value_deserialize_sample (GValue * dest, const gchar * s)
2255 GValue bval = G_VALUE_INIT, sval = G_VALUE_INIT;
2259 gboolean ret = FALSE;
2264 GST_TRACE ("deserialize '%s'", s);
2266 fields = g_strsplit (s, ":", -1);
2267 len = g_strv_length (fields);
2271 g_value_init (&bval, GST_TYPE_BUFFER);
2272 g_value_init (&sval, GST_TYPE_SEGMENT);
2274 if (!gst_value_deserialize_buffer (&bval, fields[0]))
2277 if (strcmp (fields[1], "None") != 0) {
2278 g_strdelimit (fields[1], "_", '=');
2279 g_base64_decode_inplace (fields[1], &outlen);
2280 GST_TRACE ("caps : %s", fields[1]);
2281 caps = gst_caps_from_string (fields[1]);
2288 if (strcmp (fields[2], "None") != 0) {
2289 g_strdelimit (fields[2], "_", '=');
2290 g_base64_decode_inplace (fields[2], &outlen);
2291 GST_TRACE ("segment : %s", fields[2]);
2292 if (!gst_value_deserialize_segment (&sval, fields[2]))
2296 if (strcmp (fields[3], "None") != 0) {
2297 g_strdelimit (fields[3], "_", '=');
2298 g_base64_decode_inplace (fields[3], &outlen);
2299 GST_TRACE ("info : %s", fields[3]);
2300 info = gst_structure_from_string (fields[3], NULL);
2307 sample = gst_sample_new (gst_value_get_buffer (&bval), caps,
2308 g_value_get_boxed (&sval), info);
2310 g_value_take_boxed (dest, sample);
2313 gst_caps_unref (caps);
2319 g_value_unset (&bval);
2320 g_value_unset (&sval);
2324 g_strfreev (fields);
2334 gst_value_compare_boolean (const GValue * value1, const GValue * value2)
2336 if ((value1->data[0].v_int != 0) == (value2->data[0].v_int != 0))
2337 return GST_VALUE_EQUAL;
2338 return GST_VALUE_UNORDERED;
2342 gst_value_serialize_boolean (const GValue * value)
2344 if (value->data[0].v_int) {
2345 return g_strdup ("true");
2347 return g_strdup ("false");
2351 gst_value_deserialize_boolean (GValue * dest, const gchar * s)
2353 gboolean ret = FALSE;
2355 if (g_ascii_strcasecmp (s, "true") == 0 ||
2356 g_ascii_strcasecmp (s, "yes") == 0 ||
2357 g_ascii_strcasecmp (s, "t") == 0 || strcmp (s, "1") == 0) {
2358 g_value_set_boolean (dest, TRUE);
2360 } else if (g_ascii_strcasecmp (s, "false") == 0 ||
2361 g_ascii_strcasecmp (s, "no") == 0 ||
2362 g_ascii_strcasecmp (s, "f") == 0 || strcmp (s, "0") == 0) {
2363 g_value_set_boolean (dest, FALSE);
2370 #define CREATE_SERIALIZATION_START(_type,_macro) \
2372 gst_value_compare_ ## _type \
2373 (const GValue * value1, const GValue * value2) \
2375 g ## _type val1 = g_value_get_ ## _type (value1); \
2376 g ## _type val2 = g_value_get_ ## _type (value2); \
2378 return GST_VALUE_GREATER_THAN; \
2380 return GST_VALUE_LESS_THAN; \
2381 return GST_VALUE_EQUAL; \
2385 gst_value_serialize_ ## _type (const GValue * value) \
2387 GValue val = { 0, }; \
2388 g_value_init (&val, G_TYPE_STRING); \
2389 if (!g_value_transform (value, &val)) \
2390 g_assert_not_reached (); \
2391 /* NO_COPY_MADNESS!!! */ \
2392 return (char *) g_value_get_string (&val); \
2395 /* deserialize the given s into to as a gint64.
2396 * check if the result is actually storeable in the given size number of
2400 gst_value_deserialize_int_helper (gint64 * to, const gchar * s,
2401 gint64 min, gint64 max, gint size)
2403 gboolean ret = FALSE;
2408 *to = g_ascii_strtoull (s, &end, 0);
2409 /* a range error is a definitive no-no */
2410 if (errno == ERANGE) {
2417 if (g_ascii_strcasecmp (s, "little_endian") == 0) {
2418 *to = G_LITTLE_ENDIAN;
2420 } else if (g_ascii_strcasecmp (s, "big_endian") == 0) {
2423 } else if (g_ascii_strcasecmp (s, "byte_order") == 0) {
2426 } else if (g_ascii_strcasecmp (s, "min") == 0) {
2429 } else if (g_ascii_strcasecmp (s, "max") == 0) {
2435 /* by definition, a gint64 fits into a gint64; so ignore those */
2436 if (size != sizeof (mask)) {
2438 /* for positive numbers, we create a mask of 1's outside of the range
2439 * and 0's inside the range. An and will thus keep only 1 bits
2440 * outside of the range */
2441 mask <<= (size * 8);
2442 if ((mask & *to) != 0) {
2446 /* for negative numbers, we do a 2's complement version */
2447 mask <<= ((size * 8) - 1);
2448 if ((mask & *to) != mask) {
2457 #define CREATE_SERIALIZATION(_type,_macro) \
2458 CREATE_SERIALIZATION_START(_type,_macro) \
2461 gst_value_deserialize_ ## _type (GValue * dest, const gchar *s) \
2465 if (gst_value_deserialize_int_helper (&x, s, G_MIN ## _macro, \
2466 G_MAX ## _macro, sizeof (g ## _type))) { \
2467 g_value_set_ ## _type (dest, /*(g ## _type)*/ x); \
2474 #define CREATE_USERIALIZATION(_type,_macro) \
2475 CREATE_SERIALIZATION_START(_type,_macro) \
2478 gst_value_deserialize_ ## _type (GValue * dest, const gchar *s) \
2482 gboolean ret = FALSE; \
2485 x = g_ascii_strtoull (s, &end, 0); \
2486 /* a range error is a definitive no-no */ \
2487 if (errno == ERANGE) { \
2490 /* the cast ensures the range check later on makes sense */ \
2491 x = (g ## _type) x; \
2495 if (g_ascii_strcasecmp (s, "little_endian") == 0) { \
2496 x = G_LITTLE_ENDIAN; \
2498 } else if (g_ascii_strcasecmp (s, "big_endian") == 0) { \
2501 } else if (g_ascii_strcasecmp (s, "byte_order") == 0) { \
2504 } else if (g_ascii_strcasecmp (s, "min") == 0) { \
2507 } else if (g_ascii_strcasecmp (s, "max") == 0) { \
2508 x = G_MAX ## _macro; \
2513 if (x > G_MAX ## _macro) { \
2516 g_value_set_ ## _type (dest, x); \
2522 #define REGISTER_SERIALIZATION(_gtype, _type) \
2524 static const GstValueTable gst_value = { \
2526 gst_value_compare_ ## _type, \
2527 gst_value_serialize_ ## _type, \
2528 gst_value_deserialize_ ## _type, \
2531 gst_value_register (&gst_value); \
2534 CREATE_SERIALIZATION (int, INT);
2535 CREATE_SERIALIZATION (int64, INT64);
2536 CREATE_SERIALIZATION (long, LONG);
2538 CREATE_USERIALIZATION (uint, UINT);
2539 CREATE_USERIALIZATION (uint64, UINT64);
2540 CREATE_USERIALIZATION (ulong, ULONG);
2542 /* FIXME 0.11: remove this again, plugins shouldn't have uchar properties */
2544 #define G_MAXUCHAR 255
2546 CREATE_USERIALIZATION (uchar, UCHAR);
2552 gst_value_compare_double (const GValue * value1, const GValue * value2)
2554 if (value1->data[0].v_double > value2->data[0].v_double)
2555 return GST_VALUE_GREATER_THAN;
2556 if (value1->data[0].v_double < value2->data[0].v_double)
2557 return GST_VALUE_LESS_THAN;
2558 if (value1->data[0].v_double == value2->data[0].v_double)
2559 return GST_VALUE_EQUAL;
2560 return GST_VALUE_UNORDERED;
2564 gst_value_serialize_double (const GValue * value)
2566 gchar d[G_ASCII_DTOSTR_BUF_SIZE];
2568 g_ascii_dtostr (d, G_ASCII_DTOSTR_BUF_SIZE, value->data[0].v_double);
2569 return g_strdup (d);
2573 gst_value_deserialize_double (GValue * dest, const gchar * s)
2576 gboolean ret = FALSE;
2579 x = g_ascii_strtod (s, &end);
2583 if (g_ascii_strcasecmp (s, "min") == 0) {
2586 } else if (g_ascii_strcasecmp (s, "max") == 0) {
2592 g_value_set_double (dest, x);
2602 gst_value_compare_float (const GValue * value1, const GValue * value2)
2604 if (value1->data[0].v_float > value2->data[0].v_float)
2605 return GST_VALUE_GREATER_THAN;
2606 if (value1->data[0].v_float < value2->data[0].v_float)
2607 return GST_VALUE_LESS_THAN;
2608 if (value1->data[0].v_float == value2->data[0].v_float)
2609 return GST_VALUE_EQUAL;
2610 return GST_VALUE_UNORDERED;
2614 gst_value_serialize_float (const GValue * value)
2616 gchar d[G_ASCII_DTOSTR_BUF_SIZE];
2618 g_ascii_dtostr (d, G_ASCII_DTOSTR_BUF_SIZE, value->data[0].v_float);
2619 return g_strdup (d);
2623 gst_value_deserialize_float (GValue * dest, const gchar * s)
2626 gboolean ret = FALSE;
2629 x = g_ascii_strtod (s, &end);
2633 if (g_ascii_strcasecmp (s, "min") == 0) {
2636 } else if (g_ascii_strcasecmp (s, "max") == 0) {
2641 if (x > G_MAXFLOAT || x < -G_MAXFLOAT)
2644 g_value_set_float (dest, (float) x);
2654 gst_value_compare_string (const GValue * value1, const GValue * value2)
2656 if (G_UNLIKELY (!value1->data[0].v_pointer || !value2->data[0].v_pointer)) {
2657 /* if only one is NULL, no match - otherwise both NULL == EQUAL */
2658 if (value1->data[0].v_pointer != value2->data[0].v_pointer)
2659 return GST_VALUE_UNORDERED;
2661 gint x = strcmp (value1->data[0].v_pointer, value2->data[0].v_pointer);
2664 return GST_VALUE_LESS_THAN;
2666 return GST_VALUE_GREATER_THAN;
2669 return GST_VALUE_EQUAL;
2673 gst_string_measure_wrapping (const gchar * s)
2676 gboolean wrap = FALSE;
2678 if (G_UNLIKELY (s == NULL))
2681 /* Special case: the actual string NULL needs wrapping */
2682 if (G_UNLIKELY (strcmp (s, "NULL") == 0))
2687 if (GST_ASCII_IS_STRING (*s)) {
2689 } else if (*s < 0x20 || *s >= 0x7f) {
2699 /* Wrap the string if we found something that needs
2700 * wrapping, or the empty string (len == 0) */
2701 return (wrap || len == 0) ? len : -1;
2705 gst_string_wrap_inner (const gchar * s, gint len)
2709 e = d = g_malloc (len + 3);
2713 if (GST_ASCII_IS_STRING (*s)) {
2715 } else if (*s < 0x20 || *s >= 0x7f) {
2717 *e++ = '0' + ((*(guchar *) s) >> 6);
2718 *e++ = '0' + (((*s) >> 3) & 0x7);
2719 *e++ = '0' + ((*s++) & 0x7);
2728 g_assert (e - d <= len + 3);
2732 /* Do string wrapping/escaping */
2734 gst_string_wrap (const gchar * s)
2736 gint len = gst_string_measure_wrapping (s);
2738 if (G_LIKELY (len < 0))
2739 return g_strdup (s);
2741 return gst_string_wrap_inner (s, len);
2744 /* Same as above, but take ownership of the string */
2746 gst_string_take_and_wrap (gchar * s)
2749 gint len = gst_string_measure_wrapping (s);
2751 if (G_LIKELY (len < 0))
2754 out = gst_string_wrap_inner (s, len);
2761 * This function takes a string delimited with double quotes (")
2762 * and unescapes any \xxx octal numbers.
2764 * If sequences of \y are found where y is not in the range of
2765 * 0->3, y is copied unescaped.
2767 * If \xyy is found where x is an octal number but y is not, an
2768 * error is encountered and NULL is returned.
2770 * the input string must be \0 terminated.
2773 gst_string_unwrap (const gchar * s)
2776 gchar *read, *write;
2778 /* NULL string returns NULL */
2782 /* strings not starting with " are invalid */
2786 /* make copy of original string to hold the result. This
2787 * string will always be smaller than the original */
2792 /* need to move to the next position as we parsed the " */
2796 if (GST_ASCII_IS_STRING (*read)) {
2797 /* normal chars are just copied */
2799 } else if (*read == '"') {
2800 /* quote marks end of string */
2802 } else if (*read == '\\') {
2803 /* got an escape char, move to next position to read a tripplet
2804 * of octal numbers */
2806 /* is the next char a possible first octal number? */
2807 if (*read >= '0' && *read <= '3') {
2808 /* parse other 2 numbers, if one of them is not in the range of
2809 * an octal number, we error. We also catch the case where a zero
2810 * byte is found here. */
2811 if (read[1] < '0' || read[1] > '7' || read[2] < '0' || read[2] > '7')
2814 /* now convert the octal number to a byte again. */
2815 *write++ = ((read[0] - '0') << 6) +
2816 ((read[1] - '0') << 3) + (read[2] - '0');
2820 /* if we run into a \0 here, we definitely won't get a quote later */
2824 /* else copy \X sequence */
2828 /* weird character, error */
2832 /* if the string is not ending in " and zero terminated, we error */
2833 if (*read != '"' || read[1] != '\0')
2836 /* null terminate result string and return */
2846 gst_value_serialize_string (const GValue * value)
2848 return gst_string_wrap (value->data[0].v_pointer);
2852 gst_value_deserialize_string (GValue * dest, const gchar * s)
2854 if (G_UNLIKELY (strcmp (s, "NULL") == 0)) {
2855 g_value_set_string (dest, NULL);
2857 } else if (G_LIKELY (*s != '"')) {
2858 if (!g_utf8_validate (s, -1, NULL))
2860 g_value_set_string (dest, s);
2863 gchar *str = gst_string_unwrap (s);
2864 if (G_UNLIKELY (!str))
2866 g_value_take_string (dest, str);
2877 gst_value_compare_enum (const GValue * value1, const GValue * value2)
2879 GEnumValue *en1, *en2;
2880 GEnumClass *klass1 = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (value1));
2881 GEnumClass *klass2 = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (value2));
2883 g_return_val_if_fail (klass1, GST_VALUE_UNORDERED);
2884 g_return_val_if_fail (klass2, GST_VALUE_UNORDERED);
2885 en1 = g_enum_get_value (klass1, g_value_get_enum (value1));
2886 en2 = g_enum_get_value (klass2, g_value_get_enum (value2));
2887 g_type_class_unref (klass1);
2888 g_type_class_unref (klass2);
2889 g_return_val_if_fail (en1, GST_VALUE_UNORDERED);
2890 g_return_val_if_fail (en2, GST_VALUE_UNORDERED);
2891 if (en1->value < en2->value)
2892 return GST_VALUE_LESS_THAN;
2893 if (en1->value > en2->value)
2894 return GST_VALUE_GREATER_THAN;
2896 return GST_VALUE_EQUAL;
2900 gst_value_serialize_enum (const GValue * value)
2903 GEnumClass *klass = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (value));
2905 g_return_val_if_fail (klass, NULL);
2906 en = g_enum_get_value (klass, g_value_get_enum (value));
2907 g_type_class_unref (klass);
2909 /* might be one of the custom formats registered later */
2910 if (G_UNLIKELY (en == NULL && G_VALUE_TYPE (value) == GST_TYPE_FORMAT)) {
2911 const GstFormatDefinition *format_def;
2913 format_def = gst_format_get_details ((GstFormat) g_value_get_enum (value));
2914 g_return_val_if_fail (format_def != NULL, NULL);
2915 return g_strdup (format_def->description);
2918 g_return_val_if_fail (en, NULL);
2919 return g_strdup (en->value_name);
2923 gst_value_deserialize_enum_iter_cmp (const GValue * format_def_value,
2926 const GstFormatDefinition *format_def =
2927 g_value_get_pointer (format_def_value);
2929 if (g_ascii_strcasecmp (s, format_def->nick) == 0)
2932 return g_ascii_strcasecmp (s, format_def->description);
2936 gst_value_deserialize_enum (GValue * dest, const gchar * s)
2939 gchar *endptr = NULL;
2940 GEnumClass *klass = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (dest));
2942 g_return_val_if_fail (klass, FALSE);
2943 if (!(en = g_enum_get_value_by_name (klass, s))) {
2944 if (!(en = g_enum_get_value_by_nick (klass, s))) {
2945 gint i = strtol (s, &endptr, 0);
2947 if (endptr && *endptr == '\0') {
2948 en = g_enum_get_value (klass, i);
2952 g_type_class_unref (klass);
2954 /* might be one of the custom formats registered later */
2955 if (G_UNLIKELY (en == NULL && G_VALUE_TYPE (dest) == GST_TYPE_FORMAT)) {
2956 GValue res = { 0, };
2957 const GstFormatDefinition *format_def;
2961 iter = gst_format_iterate_definitions ();
2963 found = gst_iterator_find_custom (iter,
2964 (GCompareFunc) gst_value_deserialize_enum_iter_cmp, &res, (gpointer) s);
2966 g_return_val_if_fail (found, FALSE);
2967 format_def = g_value_get_pointer (&res);
2968 g_return_val_if_fail (format_def != NULL, FALSE);
2969 g_value_set_enum (dest, (gint) format_def->value);
2970 g_value_unset (&res);
2971 gst_iterator_free (iter);
2975 g_return_val_if_fail (en, FALSE);
2976 g_value_set_enum (dest, en->value);
2984 /* we just compare the value here */
2986 gst_value_compare_flags (const GValue * value1, const GValue * value2)
2989 GFlagsClass *klass1 =
2990 (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (value1));
2991 GFlagsClass *klass2 =
2992 (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (value2));
2994 g_return_val_if_fail (klass1, GST_VALUE_UNORDERED);
2995 g_return_val_if_fail (klass2, GST_VALUE_UNORDERED);
2996 fl1 = g_value_get_flags (value1);
2997 fl2 = g_value_get_flags (value2);
2998 g_type_class_unref (klass1);
2999 g_type_class_unref (klass2);
3001 return GST_VALUE_LESS_THAN;
3003 return GST_VALUE_GREATER_THAN;
3005 return GST_VALUE_EQUAL;
3008 /* the different flags are serialized separated with a + */
3010 gst_value_serialize_flags (const GValue * value)
3014 GFlagsClass *klass = (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (value));
3015 gchar *result, *tmp;
3016 gboolean first = TRUE;
3018 g_return_val_if_fail (klass, NULL);
3020 flags = g_value_get_flags (value);
3022 /* if no flags are set, try to serialize to the _NONE string */
3024 fl = g_flags_get_first_value (klass, flags);
3026 return g_strdup (fl->value_name);
3028 return g_strdup ("0");
3031 /* some flags are set, so serialize one by one */
3032 result = g_strdup ("");
3034 fl = g_flags_get_first_value (klass, flags);
3036 tmp = g_strconcat (result, (first ? "" : "+"), fl->value_name, NULL);
3042 flags &= ~fl->value;
3045 g_type_class_unref (klass);
3051 gst_value_deserialize_flags (GValue * dest, const gchar * s)
3054 gchar *endptr = NULL;
3055 GFlagsClass *klass = (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (dest));
3060 g_return_val_if_fail (klass, FALSE);
3062 /* split into parts delimited with + */
3063 split = g_strsplit (s, "+", 0);
3067 /* loop over each part */
3069 if (!(fl = g_flags_get_value_by_name (klass, split[i]))) {
3070 if (!(fl = g_flags_get_value_by_nick (klass, split[i]))) {
3071 gint val = strtol (split[i], &endptr, 0);
3073 /* just or numeric value */
3074 if (endptr && *endptr == '\0') {
3085 g_type_class_unref (klass);
3086 g_value_set_flags (dest, flags);
3096 gst_value_is_subset_int_range_int_range (const GValue * value1,
3097 const GValue * value2)
3101 g_return_val_if_fail (GST_VALUE_HOLDS_INT_RANGE (value1), FALSE);
3102 g_return_val_if_fail (GST_VALUE_HOLDS_INT_RANGE (value2), FALSE);
3104 if (INT_RANGE_MIN (value1) * INT_RANGE_STEP (value1) <
3105 INT_RANGE_MIN (value2) * INT_RANGE_STEP (value2))
3107 if (INT_RANGE_MAX (value1) * INT_RANGE_STEP (value1) >
3108 INT_RANGE_MAX (value2) * INT_RANGE_STEP (value2))
3111 if (INT_RANGE_MIN (value2) == INT_RANGE_MAX (value2)) {
3112 if ((INT_RANGE_MIN (value2) * INT_RANGE_STEP (value2)) %
3113 INT_RANGE_STEP (value1))
3119 gst_util_greatest_common_divisor (INT_RANGE_STEP (value1),
3120 INT_RANGE_STEP (value2));
3121 if (gcd != MIN (INT_RANGE_STEP (value1), INT_RANGE_STEP (value2)))
3128 gst_value_is_subset_int64_range_int64_range (const GValue * value1,
3129 const GValue * value2)
3133 g_return_val_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value1), FALSE);
3134 g_return_val_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value2), FALSE);
3136 if (INT64_RANGE_MIN (value1) < INT64_RANGE_MIN (value2))
3138 if (INT64_RANGE_MAX (value1) > INT64_RANGE_MAX (value2))
3141 if (INT64_RANGE_MIN (value2) == INT64_RANGE_MAX (value2)) {
3142 if ((INT64_RANGE_MIN (value2) * INT64_RANGE_STEP (value2)) %
3143 INT64_RANGE_STEP (value1))
3149 gst_util_greatest_common_divisor_int64 (INT64_RANGE_STEP (value1),
3150 INT64_RANGE_STEP (value2));
3151 if (gcd != MIN (INT64_RANGE_STEP (value1), INT64_RANGE_STEP (value2)))
3158 * gst_value_is_subset:
3159 * @value1: a #GValue
3160 * @value2: a #GValue
3162 * Check that @value1 is a subset of @value2.
3164 * Return: %TRUE is @value1 is a subset of @value2
3167 gst_value_is_subset (const GValue * value1, const GValue * value2)
3169 /* special case for int/int64 ranges, since we cannot compute
3170 the difference for those when they have different steps,
3171 and it's actually a lot simpler to compute whether a range
3172 is a subset of another. */
3173 if (GST_VALUE_HOLDS_INT_RANGE (value1) && GST_VALUE_HOLDS_INT_RANGE (value2)) {
3174 return gst_value_is_subset_int_range_int_range (value1, value2);
3175 } else if (GST_VALUE_HOLDS_INT64_RANGE (value1)
3176 && GST_VALUE_HOLDS_INT64_RANGE (value2)) {
3177 return gst_value_is_subset_int64_range_int64_range (value1, value2);
3185 * -> 1 - [1,2] = empty
3189 * -> [1,2] - [1,3] = empty
3193 * -> {1,3} - {1,2} = 3
3196 * First caps subtraction needs to return a non-empty set, second
3197 * subtractions needs to give en empty set.
3198 * Both substractions are switched below, as it's faster that way.
3200 if (!gst_value_subtract (NULL, value1, value2)) {
3201 if (gst_value_subtract (NULL, value2, value1)) {
3213 gst_value_union_int_int_range (GValue * dest, const GValue * src1,
3214 const GValue * src2)
3216 gint v = src1->data[0].v_int;
3218 /* check if it's already in the range */
3219 if (INT_RANGE_MIN (src2) * INT_RANGE_STEP (src2) <= v &&
3220 INT_RANGE_MAX (src2) * INT_RANGE_STEP (src2) >= v &&
3221 v % INT_RANGE_STEP (src2) == 0) {
3223 gst_value_init_and_copy (dest, src2);
3227 /* check if it extends the range */
3228 if (v == (INT_RANGE_MIN (src2) - 1) * INT_RANGE_STEP (src2)) {
3230 gst_value_init_and_copy (dest, src2);
3231 --INT_RANGE_MIN (src2);
3235 if (v == (INT_RANGE_MAX (src2) + 1) * INT_RANGE_STEP (src2)) {
3237 gst_value_init_and_copy (dest, src2);
3238 ++INT_RANGE_MAX (src2);
3247 gst_value_union_int_range_int_range (GValue * dest, const GValue * src1,
3248 const GValue * src2)
3250 /* We can union in several special cases:
3251 1 - one is a subset of another
3252 2 - same step and not disjoint
3253 3 - different step, at least one with one value which matches a 'next' or 'previous'
3258 if (gst_value_is_subset_int_range_int_range (src1, src2)) {
3260 gst_value_init_and_copy (dest, src2);
3263 if (gst_value_is_subset_int_range_int_range (src2, src1)) {
3265 gst_value_init_and_copy (dest, src1);
3269 /* 2 - same step and not disjoint */
3270 if (INT_RANGE_STEP (src1) == INT_RANGE_STEP (src2)) {
3271 if ((INT_RANGE_MIN (src1) <= INT_RANGE_MAX (src2) + 1 &&
3272 INT_RANGE_MAX (src1) >= INT_RANGE_MIN (src2) - 1) ||
3273 (INT_RANGE_MIN (src2) <= INT_RANGE_MAX (src1) + 1 &&
3274 INT_RANGE_MAX (src2) >= INT_RANGE_MIN (src1) - 1)) {
3276 gint step = INT_RANGE_STEP (src1);
3277 gint min = step * MIN (INT_RANGE_MIN (src1), INT_RANGE_MIN (src2));
3278 gint max = step * MAX (INT_RANGE_MAX (src1), INT_RANGE_MAX (src2));
3279 g_value_init (dest, GST_TYPE_INT_RANGE);
3280 gst_value_set_int_range_step (dest, min, max, step);
3286 /* 3 - single value matches next or previous */
3287 if (INT_RANGE_STEP (src1) != INT_RANGE_STEP (src2)) {
3288 gint n1 = INT_RANGE_MAX (src1) - INT_RANGE_MIN (src1) + 1;
3289 gint n2 = INT_RANGE_MAX (src2) - INT_RANGE_MIN (src2) + 1;
3290 if (n1 == 1 || n2 == 1) {
3291 const GValue *range_value = NULL;
3295 scalar = INT_RANGE_MIN (src1) * INT_RANGE_STEP (src1);
3296 } else if (n2 == 1) {
3298 scalar = INT_RANGE_MIN (src2) * INT_RANGE_STEP (src2);
3302 (INT_RANGE_MIN (range_value) - 1) * INT_RANGE_STEP (range_value)) {
3304 gst_value_init_and_copy (dest, range_value);
3305 --INT_RANGE_MIN (range_value);
3308 } else if (scalar ==
3309 (INT_RANGE_MAX (range_value) + 1) * INT_RANGE_STEP (range_value)) {
3311 gst_value_init_and_copy (dest, range_value);
3312 ++INT_RANGE_MIN (range_value);
3319 /* If we get there, we did not find a way to make a union that can be
3320 represented with our simplistic model. */
3329 gst_value_intersect_int_int_range (GValue * dest, const GValue * src1,
3330 const GValue * src2)
3332 if (INT_RANGE_MIN (src2) * INT_RANGE_STEP (src2) <= src1->data[0].v_int &&
3333 INT_RANGE_MAX (src2) * INT_RANGE_STEP (src2) >= src1->data[0].v_int &&
3334 src1->data[0].v_int % INT_RANGE_STEP (src2) == 0) {
3336 gst_value_init_and_copy (dest, src1);
3344 gst_value_intersect_int_range_int_range (GValue * dest, const GValue * src1,
3345 const GValue * src2)
3352 INT_RANGE_STEP (src1) /
3353 gst_util_greatest_common_divisor (INT_RANGE_STEP (src1),
3354 INT_RANGE_STEP (src2));
3355 if (G_MAXINT32 / INT_RANGE_STEP (src2) < step)
3357 step *= INT_RANGE_STEP (src2);
3360 MAX (INT_RANGE_MIN (src1) * INT_RANGE_STEP (src1),
3361 INT_RANGE_MIN (src2) * INT_RANGE_STEP (src2));
3362 min = (min + step - 1) / step * step;
3364 MIN (INT_RANGE_MAX (src1) * INT_RANGE_STEP (src1),
3365 INT_RANGE_MAX (src2) * INT_RANGE_STEP (src2));
3366 max = max / step * step;
3370 g_value_init (dest, GST_TYPE_INT_RANGE);
3371 gst_value_set_int_range_step (dest, min, max, step);
3377 g_value_init (dest, G_TYPE_INT);
3378 g_value_set_int (dest, min);
3386 #define INT64_RANGE_MIN_VAL(v) (INT64_RANGE_MIN (v) * INT64_RANGE_STEP (v))
3387 #define INT64_RANGE_MAX_VAL(v) (INT64_RANGE_MAX (v) * INT64_RANGE_STEP (v))
3390 gst_value_intersect_int64_int64_range (GValue * dest, const GValue * src1,
3391 const GValue * src2)
3393 if (INT64_RANGE_MIN_VAL (src2) <= src1->data[0].v_int64 &&
3394 INT64_RANGE_MAX_VAL (src2) >= src1->data[0].v_int64 &&
3395 src1->data[0].v_int64 % INT64_RANGE_STEP (src2) == 0) {
3397 gst_value_init_and_copy (dest, src1);
3405 gst_value_intersect_int64_range_int64_range (GValue * dest, const GValue * src1,
3406 const GValue * src2)
3413 INT64_RANGE_STEP (src1) /
3414 gst_util_greatest_common_divisor_int64 (INT64_RANGE_STEP (src1),
3415 INT64_RANGE_STEP (src2));
3416 if (G_MAXINT64 / INT64_RANGE_STEP (src2) < step)
3418 step *= INT64_RANGE_STEP (src2);
3421 MAX (INT64_RANGE_MIN (src1) * INT64_RANGE_STEP (src1),
3422 INT64_RANGE_MIN (src2) * INT64_RANGE_STEP (src2));
3423 min = (min + step - 1) / step * step;
3425 MIN (INT64_RANGE_MAX (src1) * INT64_RANGE_STEP (src1),
3426 INT64_RANGE_MAX (src2) * INT64_RANGE_STEP (src2));
3427 max = max / step * step;
3431 g_value_init (dest, GST_TYPE_INT64_RANGE);
3432 gst_value_set_int64_range_step (dest, min, max, step);
3438 g_value_init (dest, G_TYPE_INT64);
3439 g_value_set_int64 (dest, min);
3448 gst_value_intersect_double_double_range (GValue * dest, const GValue * src1,
3449 const GValue * src2)
3451 if (src2->data[0].v_double <= src1->data[0].v_double &&
3452 src2->data[1].v_double >= src1->data[0].v_double) {
3454 gst_value_init_and_copy (dest, src1);
3462 gst_value_intersect_double_range_double_range (GValue * dest,
3463 const GValue * src1, const GValue * src2)
3468 min = MAX (src1->data[0].v_double, src2->data[0].v_double);
3469 max = MIN (src1->data[1].v_double, src2->data[1].v_double);
3473 g_value_init (dest, GST_TYPE_DOUBLE_RANGE);
3474 gst_value_set_double_range (dest, min, max);
3480 g_value_init (dest, G_TYPE_DOUBLE);
3481 g_value_set_int (dest, (int) min);
3490 gst_value_intersect_list (GValue * dest, const GValue * value1,
3491 const GValue * value2)
3494 GValue intersection = { 0, };
3495 gboolean ret = FALSE;
3497 size = VALUE_LIST_SIZE (value1);
3498 for (i = 0; i < size; i++) {
3499 const GValue *cur = VALUE_LIST_GET_VALUE (value1, i);
3501 /* quicker version when we don't need the resulting set */
3503 if (gst_value_intersect (NULL, cur, value2)) {
3510 if (gst_value_intersect (&intersection, cur, value2)) {
3513 gst_value_move (dest, &intersection);
3515 } else if (GST_VALUE_HOLDS_LIST (dest)) {
3516 gst_value_list_append_and_take_value (dest, &intersection);
3520 gst_value_move (&temp, dest);
3521 gst_value_list_merge (dest, &temp, &intersection);
3522 g_value_unset (&temp);
3523 g_value_unset (&intersection);
3532 gst_value_intersect_array (GValue * dest, const GValue * src1,
3533 const GValue * src2)
3539 /* only works on similar-sized arrays */
3540 size = gst_value_array_get_size (src1);
3541 if (size != gst_value_array_get_size (src2))
3544 /* quicker value when we don't need the resulting set */
3546 for (n = 0; n < size; n++) {
3547 if (!gst_value_intersect (NULL, gst_value_array_get_value (src1, n),
3548 gst_value_array_get_value (src2, n))) {
3555 g_value_init (dest, GST_TYPE_ARRAY);
3557 for (n = 0; n < size; n++) {
3558 if (!gst_value_intersect (&val, gst_value_array_get_value (src1, n),
3559 gst_value_array_get_value (src2, n))) {
3560 g_value_unset (dest);
3563 gst_value_array_append_and_take_value (dest, &val);
3570 gst_value_intersect_fraction_fraction_range (GValue * dest, const GValue * src1,
3571 const GValue * src2)
3575 GstValueCompareFunc compare;
3577 vals = src2->data[0].v_pointer;
3582 if ((compare = gst_value_get_compare_func (src1))) {
3583 res1 = gst_value_compare_with_func (&vals[0], src1, compare);
3584 res2 = gst_value_compare_with_func (&vals[1], src1, compare);
3586 if ((res1 == GST_VALUE_EQUAL || res1 == GST_VALUE_LESS_THAN) &&
3587 (res2 == GST_VALUE_EQUAL || res2 == GST_VALUE_GREATER_THAN)) {
3589 gst_value_init_and_copy (dest, src1);
3598 gst_value_intersect_fraction_range_fraction_range (GValue * dest,
3599 const GValue * src1, const GValue * src2)
3604 GValue *vals1, *vals2;
3605 GstValueCompareFunc compare;
3607 vals1 = src1->data[0].v_pointer;
3608 vals2 = src2->data[0].v_pointer;
3609 g_return_val_if_fail (vals1 != NULL && vals2 != NULL, FALSE);
3611 if ((compare = gst_value_get_compare_func (&vals1[0]))) {
3612 /* min = MAX (src1.start, src2.start) */
3613 res = gst_value_compare_with_func (&vals1[0], &vals2[0], compare);
3614 g_return_val_if_fail (res != GST_VALUE_UNORDERED, FALSE);
3615 if (res == GST_VALUE_LESS_THAN)
3616 min = &vals2[0]; /* Take the max of the 2 */
3620 /* max = MIN (src1.end, src2.end) */
3621 res = gst_value_compare_with_func (&vals1[1], &vals2[1], compare);
3622 g_return_val_if_fail (res != GST_VALUE_UNORDERED, FALSE);
3623 if (res == GST_VALUE_GREATER_THAN)
3624 max = &vals2[1]; /* Take the min of the 2 */
3628 res = gst_value_compare_with_func (min, max, compare);
3629 g_return_val_if_fail (res != GST_VALUE_UNORDERED, FALSE);
3630 if (res == GST_VALUE_LESS_THAN) {
3632 g_value_init (dest, GST_TYPE_FRACTION_RANGE);
3633 vals1 = dest->data[0].v_pointer;
3634 g_value_copy (min, &vals1[0]);
3635 g_value_copy (max, &vals1[1]);
3639 if (res == GST_VALUE_EQUAL) {
3641 gst_value_init_and_copy (dest, min);
3654 gst_value_subtract_int_int_range (GValue * dest, const GValue * minuend,
3655 const GValue * subtrahend)
3657 gint min = gst_value_get_int_range_min (subtrahend);
3658 gint max = gst_value_get_int_range_max (subtrahend);
3659 gint step = gst_value_get_int_range_step (subtrahend);
3660 gint val = g_value_get_int (minuend);
3662 /* subtracting a range from an int only works if the int is not in the
3664 if (val < min || val > max || val % step) {
3665 /* and the result is the int */
3667 gst_value_init_and_copy (dest, minuend);
3673 /* creates a new int range based on input values.
3676 gst_value_create_new_range (GValue * dest, gint min1, gint max1, gint min2,
3677 gint max2, gint step)
3681 GValue *pv1, *pv2; /* yeah, hungarian! */
3683 g_return_val_if_fail (step > 0, FALSE);
3684 g_return_val_if_fail (min1 % step == 0, FALSE);
3685 g_return_val_if_fail (max1 % step == 0, FALSE);
3686 g_return_val_if_fail (min2 % step == 0, FALSE);
3687 g_return_val_if_fail (max2 % step == 0, FALSE);
3689 if (min1 <= max1 && min2 <= max2) {
3692 } else if (min1 <= max1) {
3695 } else if (min2 <= max2) {
3706 g_value_init (pv1, GST_TYPE_INT_RANGE);
3707 gst_value_set_int_range_step (pv1, min1, max1, step);
3708 } else if (min1 == max1) {
3709 g_value_init (pv1, G_TYPE_INT);
3710 g_value_set_int (pv1, min1);
3713 g_value_init (pv2, GST_TYPE_INT_RANGE);
3714 gst_value_set_int_range_step (pv2, min2, max2, step);
3715 } else if (min2 == max2) {
3716 g_value_init (pv2, G_TYPE_INT);
3717 g_value_set_int (pv2, min2);
3720 if (min1 <= max1 && min2 <= max2) {
3721 gst_value_list_concat (dest, pv1, pv2);
3722 g_value_unset (pv1);
3723 g_value_unset (pv2);
3729 gst_value_subtract_int_range_int (GValue * dest, const GValue * minuend,
3730 const GValue * subtrahend)
3732 gint min = gst_value_get_int_range_min (minuend);
3733 gint max = gst_value_get_int_range_max (minuend);
3734 gint step = gst_value_get_int_range_step (minuend);
3735 gint val = g_value_get_int (subtrahend);
3737 g_return_val_if_fail (min < max, FALSE);
3739 /* value is outside of the range, return range unchanged */
3740 if (val < min || val > max || val % step) {
3742 gst_value_init_and_copy (dest, minuend);
3745 /* max must be MAXINT too as val <= max */
3746 if (val >= G_MAXINT - step + 1) {
3750 /* min must be MININT too as val >= max */
3751 if (val <= G_MININT + step - 1) {
3756 gst_value_create_new_range (dest, min, val - step, val + step, max, step);
3762 gst_value_subtract_int_range_int_range (GValue * dest, const GValue * minuend,
3763 const GValue * subtrahend)
3765 gint min1 = gst_value_get_int_range_min (minuend);
3766 gint max1 = gst_value_get_int_range_max (minuend);
3767 gint step1 = gst_value_get_int_range_step (minuend);
3768 gint min2 = gst_value_get_int_range_min (subtrahend);
3769 gint max2 = gst_value_get_int_range_max (subtrahend);
3770 gint step2 = gst_value_get_int_range_step (subtrahend);
3773 if (step1 != step2) {
3780 if (max2 >= max1 && min2 <= min1) {
3782 } else if (max2 >= max1) {
3783 return gst_value_create_new_range (dest, min1, MIN (min2 - step, max1),
3785 } else if (min2 <= min1) {
3786 return gst_value_create_new_range (dest, MAX (max2 + step, min1), max1,
3789 return gst_value_create_new_range (dest, min1, MIN (min2 - step, max1),
3790 MAX (max2 + step, min1), max1, step);
3795 gst_value_subtract_int64_int64_range (GValue * dest, const GValue * minuend,
3796 const GValue * subtrahend)
3798 gint64 min = gst_value_get_int64_range_min (subtrahend);
3799 gint64 max = gst_value_get_int64_range_max (subtrahend);
3800 gint64 step = gst_value_get_int64_range_step (subtrahend);
3801 gint64 val = g_value_get_int64 (minuend);
3803 /* subtracting a range from an int64 only works if the int64 is not in the
3805 if (val < min || val > max || val % step) {
3806 /* and the result is the int64 */
3808 gst_value_init_and_copy (dest, minuend);
3814 /* creates a new int64 range based on input values.
3817 gst_value_create_new_int64_range (GValue * dest, gint64 min1, gint64 max1,
3818 gint64 min2, gint64 max2, gint64 step)
3822 GValue *pv1, *pv2; /* yeah, hungarian! */
3824 g_return_val_if_fail (step > 0, FALSE);
3825 g_return_val_if_fail (min1 % step == 0, FALSE);
3826 g_return_val_if_fail (max1 % step == 0, FALSE);
3827 g_return_val_if_fail (min2 % step == 0, FALSE);
3828 g_return_val_if_fail (max2 % step == 0, FALSE);
3830 if (min1 <= max1 && min2 <= max2) {
3833 } else if (min1 <= max1) {
3836 } else if (min2 <= max2) {
3847 g_value_init (pv1, GST_TYPE_INT64_RANGE);
3848 gst_value_set_int64_range_step (pv1, min1, max1, step);
3849 } else if (min1 == max1) {
3850 g_value_init (pv1, G_TYPE_INT64);
3851 g_value_set_int64 (pv1, min1);
3854 g_value_init (pv2, GST_TYPE_INT64_RANGE);
3855 gst_value_set_int64_range_step (pv2, min2, max2, step);
3856 } else if (min2 == max2) {
3857 g_value_init (pv2, G_TYPE_INT64);
3858 g_value_set_int64 (pv2, min2);
3861 if (min1 <= max1 && min2 <= max2) {
3862 gst_value_list_concat (dest, pv1, pv2);
3863 g_value_unset (pv1);
3864 g_value_unset (pv2);
3870 gst_value_subtract_int64_range_int64 (GValue * dest, const GValue * minuend,
3871 const GValue * subtrahend)
3873 gint64 min = gst_value_get_int64_range_min (minuend);
3874 gint64 max = gst_value_get_int64_range_max (minuend);
3875 gint64 step = gst_value_get_int64_range_step (minuend);
3876 gint64 val = g_value_get_int64 (subtrahend);
3878 g_return_val_if_fail (min < max, FALSE);
3880 /* value is outside of the range, return range unchanged */
3881 if (val < min || val > max || val % step) {
3883 gst_value_init_and_copy (dest, minuend);
3886 /* max must be MAXINT64 too as val <= max */
3887 if (val >= G_MAXINT64 - step + 1) {
3891 /* min must be MININT64 too as val >= max */
3892 if (val <= G_MININT64 + step - 1) {
3897 gst_value_create_new_int64_range (dest, min, val - step, val + step, max,
3904 gst_value_subtract_int64_range_int64_range (GValue * dest,
3905 const GValue * minuend, const GValue * subtrahend)
3907 gint64 min1 = gst_value_get_int64_range_min (minuend);
3908 gint64 max1 = gst_value_get_int64_range_max (minuend);
3909 gint64 step1 = gst_value_get_int64_range_step (minuend);
3910 gint64 min2 = gst_value_get_int64_range_min (subtrahend);
3911 gint64 max2 = gst_value_get_int64_range_max (subtrahend);
3912 gint64 step2 = gst_value_get_int64_range_step (subtrahend);
3915 if (step1 != step2) {
3922 if (max2 >= max1 && min2 <= min1) {
3924 } else if (max2 >= max1) {
3925 return gst_value_create_new_int64_range (dest, min1, MIN (min2 - step,
3926 max1), step, 0, step);
3927 } else if (min2 <= min1) {
3928 return gst_value_create_new_int64_range (dest, MAX (max2 + step, min1),
3929 max1, step, 0, step);
3931 return gst_value_create_new_int64_range (dest, min1, MIN (min2 - step,
3932 max1), MAX (max2 + step, min1), max1, step);
3937 gst_value_subtract_double_double_range (GValue * dest, const GValue * minuend,
3938 const GValue * subtrahend)
3940 gdouble min = gst_value_get_double_range_min (subtrahend);
3941 gdouble max = gst_value_get_double_range_max (subtrahend);
3942 gdouble val = g_value_get_double (minuend);
3944 if (val < min || val > max) {
3946 gst_value_init_and_copy (dest, minuend);
3953 gst_value_subtract_double_range_double (GValue * dest, const GValue * minuend,
3954 const GValue * subtrahend)
3956 /* since we don't have open ranges, we cannot create a hole in
3957 * a double range. We return the original range */
3959 gst_value_init_and_copy (dest, minuend);
3964 gst_value_subtract_double_range_double_range (GValue * dest,
3965 const GValue * minuend, const GValue * subtrahend)
3967 /* since we don't have open ranges, we have to approximate */
3968 /* done like with ints */
3969 gdouble min1 = gst_value_get_double_range_min (minuend);
3970 gdouble max2 = gst_value_get_double_range_max (minuend);
3971 gdouble max1 = MIN (gst_value_get_double_range_min (subtrahend), max2);
3972 gdouble min2 = MAX (gst_value_get_double_range_max (subtrahend), min1);
3975 GValue *pv1, *pv2; /* yeah, hungarian! */
3977 if (min1 < max1 && min2 < max2) {
3980 } else if (min1 < max1) {
3983 } else if (min2 < max2) {
3994 g_value_init (pv1, GST_TYPE_DOUBLE_RANGE);
3995 gst_value_set_double_range (pv1, min1, max1);
3998 g_value_init (pv2, GST_TYPE_DOUBLE_RANGE);
3999 gst_value_set_double_range (pv2, min2, max2);
4002 if (min1 < max1 && min2 < max2) {
4003 gst_value_list_concat (dest, pv1, pv2);
4004 g_value_unset (pv1);
4005 g_value_unset (pv2);
4011 gst_value_subtract_from_list (GValue * dest, const GValue * minuend,
4012 const GValue * subtrahend)
4015 GValue subtraction = { 0, };
4016 gboolean ret = FALSE;
4019 ltype = gst_value_list_get_type ();
4021 size = VALUE_LIST_SIZE (minuend);
4022 for (i = 0; i < size; i++) {
4023 const GValue *cur = VALUE_LIST_GET_VALUE (minuend, i);
4025 /* quicker version when we can discard the result */
4027 if (gst_value_subtract (NULL, cur, subtrahend)) {
4034 if (gst_value_subtract (&subtraction, cur, subtrahend)) {
4036 gst_value_move (dest, &subtraction);
4038 } else if (G_VALUE_HOLDS (dest, ltype)
4039 && !G_VALUE_HOLDS (&subtraction, ltype)) {
4040 gst_value_list_append_and_take_value (dest, &subtraction);
4044 gst_value_move (&temp, dest);
4045 gst_value_list_concat (dest, &temp, &subtraction);
4046 g_value_unset (&temp);
4047 g_value_unset (&subtraction);
4055 gst_value_subtract_list (GValue * dest, const GValue * minuend,
4056 const GValue * subtrahend)
4059 GValue data[2] = { {0,}, {0,} };
4060 GValue *subtraction = &data[0], *result = &data[1];
4062 gst_value_init_and_copy (result, minuend);
4063 size = VALUE_LIST_SIZE (subtrahend);
4064 for (i = 0; i < size; i++) {
4065 const GValue *cur = VALUE_LIST_GET_VALUE (subtrahend, i);
4067 if (gst_value_subtract (subtraction, result, cur)) {
4068 GValue *temp = result;
4070 result = subtraction;
4072 g_value_unset (subtraction);
4074 g_value_unset (result);
4079 gst_value_move (dest, result);
4081 g_value_unset (result);
4087 gst_value_subtract_fraction_fraction_range (GValue * dest,
4088 const GValue * minuend, const GValue * subtrahend)
4090 const GValue *min = gst_value_get_fraction_range_min (subtrahend);
4091 const GValue *max = gst_value_get_fraction_range_max (subtrahend);
4092 GstValueCompareFunc compare;
4094 if ((compare = gst_value_get_compare_func (minuend))) {
4095 /* subtracting a range from an fraction only works if the fraction
4096 * is not in the range */
4097 if (gst_value_compare_with_func (minuend, min, compare) ==
4098 GST_VALUE_LESS_THAN ||
4099 gst_value_compare_with_func (minuend, max, compare) ==
4100 GST_VALUE_GREATER_THAN) {
4101 /* and the result is the value */
4103 gst_value_init_and_copy (dest, minuend);
4111 gst_value_subtract_fraction_range_fraction (GValue * dest,
4112 const GValue * minuend, const GValue * subtrahend)
4114 /* since we don't have open ranges, we cannot create a hole in
4115 * a range. We return the original range */
4117 gst_value_init_and_copy (dest, minuend);
4122 gst_value_subtract_fraction_range_fraction_range (GValue * dest,
4123 const GValue * minuend, const GValue * subtrahend)
4125 /* since we don't have open ranges, we have to approximate */
4126 /* done like with ints and doubles. Creates a list of 2 fraction ranges */
4127 const GValue *min1 = gst_value_get_fraction_range_min (minuend);
4128 const GValue *max2 = gst_value_get_fraction_range_max (minuend);
4129 const GValue *max1 = gst_value_get_fraction_range_min (subtrahend);
4130 const GValue *min2 = gst_value_get_fraction_range_max (subtrahend);
4134 GValue *pv1, *pv2; /* yeah, hungarian! */
4135 GstValueCompareFunc compare;
4137 g_return_val_if_fail (min1 != NULL && max1 != NULL, FALSE);
4138 g_return_val_if_fail (min2 != NULL && max2 != NULL, FALSE);
4140 compare = gst_value_get_compare_func (min1);
4141 g_return_val_if_fail (compare, FALSE);
4143 cmp1 = gst_value_compare_with_func (max2, max1, compare);
4144 g_return_val_if_fail (cmp1 != GST_VALUE_UNORDERED, FALSE);
4145 if (cmp1 == GST_VALUE_LESS_THAN)
4147 cmp1 = gst_value_compare_with_func (min1, min2, compare);
4148 g_return_val_if_fail (cmp1 != GST_VALUE_UNORDERED, FALSE);
4149 if (cmp1 == GST_VALUE_GREATER_THAN)
4152 cmp1 = gst_value_compare_with_func (min1, max1, compare);
4153 cmp2 = gst_value_compare_with_func (min2, max2, compare);
4155 if (cmp1 == GST_VALUE_LESS_THAN && cmp2 == GST_VALUE_LESS_THAN) {
4158 } else if (cmp1 == GST_VALUE_LESS_THAN) {
4161 } else if (cmp2 == GST_VALUE_LESS_THAN) {
4171 if (cmp1 == GST_VALUE_LESS_THAN) {
4172 g_value_init (pv1, GST_TYPE_FRACTION_RANGE);
4173 gst_value_set_fraction_range (pv1, min1, max1);
4175 if (cmp2 == GST_VALUE_LESS_THAN) {
4176 g_value_init (pv2, GST_TYPE_FRACTION_RANGE);
4177 gst_value_set_fraction_range (pv2, min2, max2);
4180 if (cmp1 == GST_VALUE_LESS_THAN && cmp2 == GST_VALUE_LESS_THAN) {
4181 gst_value_list_concat (dest, pv1, pv2);
4182 g_value_unset (pv1);
4183 g_value_unset (pv2);
4194 * gst_value_get_compare_func:
4195 * @value1: a value to get the compare function for
4197 * Determines the compare function to be used with values of the same type as
4198 * @value1. The function can be given to gst_value_compare_with_func().
4200 * Returns: A #GstValueCompareFunc value
4202 static GstValueCompareFunc
4203 gst_value_get_compare_func (const GValue * value1)
4205 GstValueTable *table, *best = NULL;
4209 type1 = G_VALUE_TYPE (value1);
4211 /* this is a fast check */
4212 best = gst_value_hash_lookup_type (type1);
4215 if (G_UNLIKELY (!best || !best->compare)) {
4216 guint len = gst_value_table->len;
4219 for (i = 0; i < len; i++) {
4220 table = &g_array_index (gst_value_table, GstValueTable, i);
4221 if (table->compare && g_type_is_a (type1, table->type)) {
4222 if (!best || g_type_is_a (table->type, best->type))
4227 if (G_LIKELY (best))
4228 return best->compare;
4234 * gst_value_can_compare:
4235 * @value1: a value to compare
4236 * @value2: another value to compare
4238 * Determines if @value1 and @value2 can be compared.
4240 * Returns: TRUE if the values can be compared
4243 gst_value_can_compare (const GValue * value1, const GValue * value2)
4245 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
4246 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
4248 if (G_VALUE_TYPE (value1) != G_VALUE_TYPE (value2))
4251 return gst_value_get_compare_func (value1) != NULL;
4255 gst_value_list_equals_range (const GValue * list, const GValue * value)
4257 const GValue *first;
4260 g_return_val_if_fail (G_IS_VALUE (list), FALSE);
4261 g_return_val_if_fail (G_IS_VALUE (value), FALSE);
4262 g_return_val_if_fail (GST_VALUE_HOLDS_LIST (list), FALSE);
4264 /* TODO: compare against an empty list ? No type though... */
4265 list_size = VALUE_LIST_SIZE (list);
4269 /* compare the basic types - they have to match */
4270 first = VALUE_LIST_GET_VALUE (list, 0);
4271 #define CHECK_TYPES(type,prefix) \
4272 (prefix##_VALUE_HOLDS_##type(first) && GST_VALUE_HOLDS_##type##_RANGE (value))
4273 if (CHECK_TYPES (INT, G)) {
4274 const gint rmin = gst_value_get_int_range_min (value);
4275 const gint rmax = gst_value_get_int_range_max (value);
4276 const gint rstep = gst_value_get_int_range_step (value);
4277 /* note: this will overflow for min 0 and max INT_MAX, but this
4278 would only be equal to a list of INT_MAX elements, which seems
4280 if (list_size != rmax / rstep - rmin / rstep + 1)
4282 for (n = 0; n < list_size; ++n) {
4283 gint v = g_value_get_int (VALUE_LIST_GET_VALUE (list, n));
4284 if (v < rmin || v > rmax || v % rstep) {
4289 } else if (CHECK_TYPES (INT64, G)) {
4290 const gint64 rmin = gst_value_get_int64_range_min (value);
4291 const gint64 rmax = gst_value_get_int64_range_max (value);
4292 const gint64 rstep = gst_value_get_int64_range_step (value);
4293 GST_DEBUG ("List/range of int64s");
4294 if (list_size != rmax / rstep - rmin / rstep + 1)
4296 for (n = 0; n < list_size; ++n) {
4297 gint64 v = g_value_get_int64 (VALUE_LIST_GET_VALUE (list, n));
4298 if (v < rmin || v > rmax || v % rstep)
4305 /* other combinations don't make sense for equality */
4310 * gst_value_compare:
4311 * @value1: a value to compare
4312 * @value2: another value to compare
4314 * Compares @value1 and @value2. If @value1 and @value2 cannot be
4315 * compared, the function returns GST_VALUE_UNORDERED. Otherwise,
4316 * if @value1 is greater than @value2, GST_VALUE_GREATER_THAN is returned.
4317 * If @value1 is less than @value2, GST_VALUE_LESS_THAN is returned.
4318 * If the values are equal, GST_VALUE_EQUAL is returned.
4320 * Returns: comparison result
4323 gst_value_compare (const GValue * value1, const GValue * value2)
4325 GstValueCompareFunc compare;
4328 g_return_val_if_fail (G_IS_VALUE (value1), GST_VALUE_LESS_THAN);
4329 g_return_val_if_fail (G_IS_VALUE (value2), GST_VALUE_GREATER_THAN);
4331 /* Special cases: lists and scalar values ("{ 1 }" and "1" are equal),
4332 as well as lists and ranges ("{ 1, 2 }" and "[ 1, 2 ]" are equal) */
4333 ltype = gst_value_list_get_type ();
4334 if (G_VALUE_HOLDS (value1, ltype) && !G_VALUE_HOLDS (value2, ltype)) {
4336 if (gst_value_list_equals_range (value1, value2)) {
4337 return GST_VALUE_EQUAL;
4338 } else if (gst_value_list_get_size (value1) == 1) {
4341 elt = gst_value_list_get_value (value1, 0);
4342 return gst_value_compare (elt, value2);
4344 } else if (G_VALUE_HOLDS (value2, ltype) && !G_VALUE_HOLDS (value1, ltype)) {
4345 if (gst_value_list_equals_range (value2, value1)) {
4346 return GST_VALUE_EQUAL;
4347 } else if (gst_value_list_get_size (value2) == 1) {
4350 elt = gst_value_list_get_value (value2, 0);
4351 return gst_value_compare (elt, value1);
4355 if (G_VALUE_TYPE (value1) != G_VALUE_TYPE (value2))
4356 return GST_VALUE_UNORDERED;
4358 compare = gst_value_get_compare_func (value1);
4360 return compare (value1, value2);
4363 g_critical ("unable to compare values of type %s\n",
4364 g_type_name (G_VALUE_TYPE (value1)));
4365 return GST_VALUE_UNORDERED;
4369 * gst_value_compare_with_func:
4370 * @value1: a value to compare
4371 * @value2: another value to compare
4372 * @compare: compare function
4374 * Compares @value1 and @value2 using the @compare function. Works like
4375 * gst_value_compare() but allows to save time determining the compare function
4378 * Returns: comparison result
4381 gst_value_compare_with_func (const GValue * value1, const GValue * value2,
4382 GstValueCompareFunc compare)
4386 if (G_VALUE_TYPE (value1) != G_VALUE_TYPE (value2))
4387 return GST_VALUE_UNORDERED;
4389 return compare (value1, value2);
4395 * gst_value_can_union:
4396 * @value1: a value to union
4397 * @value2: another value to union
4399 * Determines if @value1 and @value2 can be non-trivially unioned.
4400 * Any two values can be trivially unioned by adding both of them
4401 * to a GstValueList. However, certain types have the possibility
4402 * to be unioned in a simpler way. For example, an integer range
4403 * and an integer can be unioned if the integer is a subset of the
4404 * integer range. If there is the possibility that two values can
4405 * be unioned, this function returns TRUE.
4407 * Returns: TRUE if there is a function allowing the two values to
4411 gst_value_can_union (const GValue * value1, const GValue * value2)
4413 GstValueUnionInfo *union_info;
4416 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
4417 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
4419 len = gst_value_union_funcs->len;
4421 for (i = 0; i < len; i++) {
4422 union_info = &g_array_index (gst_value_union_funcs, GstValueUnionInfo, i);
4423 if (union_info->type1 == G_VALUE_TYPE (value1) &&
4424 union_info->type2 == G_VALUE_TYPE (value2))
4426 if (union_info->type1 == G_VALUE_TYPE (value2) &&
4427 union_info->type2 == G_VALUE_TYPE (value1))
4436 * @dest: (out caller-allocates): the destination value
4437 * @value1: a value to union
4438 * @value2: another value to union
4440 * Creates a GValue corresponding to the union of @value1 and @value2.
4442 * Returns: TRUE if the union suceeded.
4445 gst_value_union (GValue * dest, const GValue * value1, const GValue * value2)
4447 const GstValueUnionInfo *union_info;
4451 g_return_val_if_fail (dest != NULL, FALSE);
4452 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
4453 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
4454 g_return_val_if_fail (gst_value_list_or_array_are_compatible (value1, value2),
4457 len = gst_value_union_funcs->len;
4458 type1 = G_VALUE_TYPE (value1);
4459 type2 = G_VALUE_TYPE (value2);
4461 for (i = 0; i < len; i++) {
4462 union_info = &g_array_index (gst_value_union_funcs, GstValueUnionInfo, i);
4463 if (union_info->type1 == type1 && union_info->type2 == type2) {
4464 return union_info->func (dest, value1, value2);
4466 if (union_info->type1 == type2 && union_info->type2 == type1) {
4467 return union_info->func (dest, value2, value1);
4471 gst_value_list_concat (dest, value1, value2);
4475 /* gst_value_register_union_func: (skip)
4476 * @type1: a type to union
4477 * @type2: another type to union
4478 * @func: a function that implements creating a union between the two types
4480 * Registers a union function that can create a union between #GValue items
4481 * of the type @type1 and @type2.
4483 * Union functions should be registered at startup before any pipelines are
4484 * started, as gst_value_register_union_func() is not thread-safe and cannot
4485 * be used at the same time as gst_value_union() or gst_value_can_union().
4488 gst_value_register_union_func (GType type1, GType type2, GstValueUnionFunc func)
4490 GstValueUnionInfo union_info;
4492 union_info.type1 = type1;
4493 union_info.type2 = type2;
4494 union_info.func = func;
4496 g_array_append_val (gst_value_union_funcs, union_info);
4502 * gst_value_can_intersect:
4503 * @value1: a value to intersect
4504 * @value2: another value to intersect
4506 * Determines if intersecting two values will produce a valid result.
4507 * Two values will produce a valid intersection if they have the same
4508 * type, or if there is a method (registered by
4509 * gst_value_register_intersect_func()) to calculate the intersection.
4511 * Returns: TRUE if the values can intersect
4514 gst_value_can_intersect (const GValue * value1, const GValue * value2)
4516 GstValueIntersectInfo *intersect_info;
4518 GType ltype, type1, type2;
4520 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
4521 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
4523 ltype = gst_value_list_get_type ();
4526 if (G_VALUE_HOLDS (value1, ltype) || G_VALUE_HOLDS (value2, ltype))
4529 type1 = G_VALUE_TYPE (value1);
4530 type2 = G_VALUE_TYPE (value2);
4532 /* practically all GstValue types have a compare function (_can_compare=TRUE)
4533 * GstStructure and GstCaps have npot, but are intersectable */
4537 /* check registered intersect functions */
4538 len = gst_value_intersect_funcs->len;
4539 for (i = 0; i < len; i++) {
4540 intersect_info = &g_array_index (gst_value_intersect_funcs,
4541 GstValueIntersectInfo, i);
4542 if ((intersect_info->type1 == type1 && intersect_info->type2 == type2) ||
4543 (intersect_info->type1 == type2 && intersect_info->type2 == type1))
4547 return gst_value_can_compare (value1, value2);
4551 * gst_value_intersect:
4552 * @dest: (out caller-allocates) (transfer full): a uninitialized #GValue that will hold the calculated
4553 * intersection value. May be NULL if the resulting set if not needed.
4554 * @value1: a value to intersect
4555 * @value2: another value to intersect
4557 * Calculates the intersection of two values. If the values have
4558 * a non-empty intersection, the value representing the intersection
4559 * is placed in @dest, unless NULL. If the intersection is non-empty,
4560 * @dest is not modified.
4562 * Returns: TRUE if the intersection is non-empty
4565 gst_value_intersect (GValue * dest, const GValue * value1,
4566 const GValue * value2)
4568 GstValueIntersectInfo *intersect_info;
4570 GType ltype, type1, type2;
4572 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
4573 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
4575 ltype = gst_value_list_get_type ();
4577 /* special cases first */
4578 if (G_VALUE_HOLDS (value1, ltype))
4579 return gst_value_intersect_list (dest, value1, value2);
4580 if (G_VALUE_HOLDS (value2, ltype))
4581 return gst_value_intersect_list (dest, value2, value1);
4583 if (gst_value_compare (value1, value2) == GST_VALUE_EQUAL) {
4585 gst_value_init_and_copy (dest, value1);
4589 type1 = G_VALUE_TYPE (value1);
4590 type2 = G_VALUE_TYPE (value2);
4592 len = gst_value_intersect_funcs->len;
4593 for (i = 0; i < len; i++) {
4594 intersect_info = &g_array_index (gst_value_intersect_funcs,
4595 GstValueIntersectInfo, i);
4596 if (intersect_info->type1 == type1 && intersect_info->type2 == type2) {
4597 return intersect_info->func (dest, value1, value2);
4599 if (intersect_info->type1 == type2 && intersect_info->type2 == type1) {
4600 return intersect_info->func (dest, value2, value1);
4608 /* gst_value_register_intersect_func: (skip)
4609 * @type1: the first type to intersect
4610 * @type2: the second type to intersect
4611 * @func: the intersection function
4613 * Registers a function that is called to calculate the intersection
4614 * of the values having the types @type1 and @type2.
4616 * Intersect functions should be registered at startup before any pipelines are
4617 * started, as gst_value_register_intersect_func() is not thread-safe and
4618 * cannot be used at the same time as gst_value_intersect() or
4619 * gst_value_can_intersect().
4622 gst_value_register_intersect_func (GType type1, GType type2,
4623 GstValueIntersectFunc func)
4625 GstValueIntersectInfo intersect_info;
4627 intersect_info.type1 = type1;
4628 intersect_info.type2 = type2;
4629 intersect_info.func = func;
4631 g_array_append_val (gst_value_intersect_funcs, intersect_info);
4638 * gst_value_subtract:
4639 * @dest: (out caller-allocates): the destination value for the result if the
4640 * subtraction is not empty. May be NULL, in which case the resulting set
4641 * will not be computed, which can give a fair speedup.
4642 * @minuend: the value to subtract from
4643 * @subtrahend: the value to subtract
4645 * Subtracts @subtrahend from @minuend and stores the result in @dest.
4646 * Note that this means subtraction as in sets, not as in mathematics.
4648 * Returns: %TRUE if the subtraction is not empty
4651 gst_value_subtract (GValue * dest, const GValue * minuend,
4652 const GValue * subtrahend)
4654 GstValueSubtractInfo *info;
4656 GType ltype, mtype, stype;
4658 g_return_val_if_fail (G_IS_VALUE (minuend), FALSE);
4659 g_return_val_if_fail (G_IS_VALUE (subtrahend), FALSE);
4661 ltype = gst_value_list_get_type ();
4663 /* special cases first */
4664 if (G_VALUE_HOLDS (minuend, ltype))
4665 return gst_value_subtract_from_list (dest, minuend, subtrahend);
4666 if (G_VALUE_HOLDS (subtrahend, ltype))
4667 return gst_value_subtract_list (dest, minuend, subtrahend);
4669 mtype = G_VALUE_TYPE (minuend);
4670 stype = G_VALUE_TYPE (subtrahend);
4672 len = gst_value_subtract_funcs->len;
4673 for (i = 0; i < len; i++) {
4674 info = &g_array_index (gst_value_subtract_funcs, GstValueSubtractInfo, i);
4675 if (info->minuend == mtype && info->subtrahend == stype) {
4676 return info->func (dest, minuend, subtrahend);
4680 if (gst_value_compare (minuend, subtrahend) != GST_VALUE_EQUAL) {
4682 gst_value_init_and_copy (dest, minuend);
4691 gst_value_subtract (GValue * dest, const GValue * minuend,
4692 const GValue * subtrahend)
4694 gboolean ret = gst_value_subtract2 (dest, minuend, subtrahend);
4696 g_printerr ("\"%s\" - \"%s\" = \"%s\"\n", gst_value_serialize (minuend),
4697 gst_value_serialize (subtrahend),
4698 ret ? gst_value_serialize (dest) : "---");
4704 * gst_value_can_subtract:
4705 * @minuend: the value to subtract from
4706 * @subtrahend: the value to subtract
4708 * Checks if it's possible to subtract @subtrahend from @minuend.
4710 * Returns: TRUE if a subtraction is possible
4713 gst_value_can_subtract (const GValue * minuend, const GValue * subtrahend)
4715 GstValueSubtractInfo *info;
4717 GType ltype, mtype, stype;
4719 g_return_val_if_fail (G_IS_VALUE (minuend), FALSE);
4720 g_return_val_if_fail (G_IS_VALUE (subtrahend), FALSE);
4722 ltype = gst_value_list_get_type ();
4725 if (G_VALUE_HOLDS (minuend, ltype) || G_VALUE_HOLDS (subtrahend, ltype))
4728 mtype = G_VALUE_TYPE (minuend);
4729 stype = G_VALUE_TYPE (subtrahend);
4731 len = gst_value_subtract_funcs->len;
4732 for (i = 0; i < len; i++) {
4733 info = &g_array_index (gst_value_subtract_funcs, GstValueSubtractInfo, i);
4734 if (info->minuend == mtype && info->subtrahend == stype)
4738 return gst_value_can_compare (minuend, subtrahend);
4741 /* gst_value_register_subtract_func: (skip)
4742 * @minuend_type: type of the minuend
4743 * @subtrahend_type: type of the subtrahend
4744 * @func: function to use
4746 * Registers @func as a function capable of subtracting the values of
4747 * @subtrahend_type from values of @minuend_type.
4749 * Subtract functions should be registered at startup before any pipelines are
4750 * started, as gst_value_register_subtract_func() is not thread-safe and
4751 * cannot be used at the same time as gst_value_subtract().
4754 gst_value_register_subtract_func (GType minuend_type, GType subtrahend_type,
4755 GstValueSubtractFunc func)
4757 GstValueSubtractInfo info;
4759 /* one type must be unfixed, other subtractions can be done as comparisons,
4760 * special case: bitmasks */
4761 if (minuend_type != GST_TYPE_BITMASK)
4762 g_return_if_fail (!gst_type_is_fixed (minuend_type)
4763 || !gst_type_is_fixed (subtrahend_type));
4765 info.minuend = minuend_type;
4766 info.subtrahend = subtrahend_type;
4769 g_array_append_val (gst_value_subtract_funcs, info);
4773 * gst_value_register:
4774 * @table: structure containing functions to register
4776 * Registers functions to perform calculations on #GValue items of a given
4777 * type. Each type can only be added once.
4780 gst_value_register (const GstValueTable * table)
4782 GstValueTable *found;
4784 g_return_if_fail (table != NULL);
4786 g_array_append_val (gst_value_table, *table);
4788 found = gst_value_hash_lookup_type (table->type);
4790 g_warning ("adding type %s multiple times", g_type_name (table->type));
4792 /* FIXME: we're not really doing the const justice, we assume the table is
4794 gst_value_hash_add_type (table->type, table);
4798 * gst_value_init_and_copy:
4799 * @dest: (out caller-allocates): the target value
4800 * @src: the source value
4802 * Initialises the target value to be of the same type as source and then copies
4803 * the contents from source to target.
4806 gst_value_init_and_copy (GValue * dest, const GValue * src)
4808 g_return_if_fail (G_IS_VALUE (src));
4809 g_return_if_fail (dest != NULL);
4811 g_value_init (dest, G_VALUE_TYPE (src));
4812 g_value_copy (src, dest);
4815 /* move src into dest and clear src */
4817 gst_value_move (GValue * dest, GValue * src)
4819 g_assert (G_IS_VALUE (src));
4820 g_assert (dest != NULL);
4823 memset (src, 0, sizeof (GValue));
4827 * gst_value_serialize:
4828 * @value: a #GValue to serialize
4830 * tries to transform the given @value into a string representation that allows
4831 * getting back this string later on using gst_value_deserialize().
4833 * Free-function: g_free
4835 * Returns: (transfer full): the serialization for @value or NULL if none exists
4838 gst_value_serialize (const GValue * value)
4841 GValue s_val = { 0 };
4842 GstValueTable *table, *best;
4846 g_return_val_if_fail (G_IS_VALUE (value), NULL);
4848 type = G_VALUE_TYPE (value);
4850 best = gst_value_hash_lookup_type (type);
4852 if (G_UNLIKELY (!best || !best->serialize)) {
4853 len = gst_value_table->len;
4855 for (i = 0; i < len; i++) {
4856 table = &g_array_index (gst_value_table, GstValueTable, i);
4857 if (table->serialize && g_type_is_a (type, table->type)) {
4858 if (!best || g_type_is_a (table->type, best->type))
4863 if (G_LIKELY (best))
4864 return best->serialize (value);
4866 g_value_init (&s_val, G_TYPE_STRING);
4867 if (g_value_transform (value, &s_val)) {
4868 s = gst_string_wrap (g_value_get_string (&s_val));
4872 g_value_unset (&s_val);
4878 * gst_value_deserialize:
4879 * @dest: (out caller-allocates): #GValue to fill with contents of
4881 * @src: string to deserialize
4883 * Tries to deserialize a string into the type specified by the given GValue.
4884 * If the operation succeeds, TRUE is returned, FALSE otherwise.
4886 * Returns: TRUE on success
4889 gst_value_deserialize (GValue * dest, const gchar * src)
4891 GstValueTable *table, *best;
4895 g_return_val_if_fail (src != NULL, FALSE);
4896 g_return_val_if_fail (G_IS_VALUE (dest), FALSE);
4898 type = G_VALUE_TYPE (dest);
4900 best = gst_value_hash_lookup_type (type);
4901 if (G_UNLIKELY (!best || !best->deserialize)) {
4902 len = gst_value_table->len;
4904 for (i = 0; i < len; i++) {
4905 table = &g_array_index (gst_value_table, GstValueTable, i);
4906 if (table->deserialize && g_type_is_a (type, table->type)) {
4907 if (!best || g_type_is_a (table->type, best->type))
4912 if (G_LIKELY (best))
4913 return best->deserialize (dest, src);
4919 * gst_value_is_fixed:
4920 * @value: the #GValue to check
4922 * Tests if the given GValue, if available in a GstStructure (or any other
4923 * container) contains a "fixed" (which means: one value) or an "unfixed"
4924 * (which means: multiple possible values, such as data lists or data
4927 * Returns: true if the value is "fixed".
4931 gst_value_is_fixed (const GValue * value)
4935 g_return_val_if_fail (G_IS_VALUE (value), FALSE);
4937 type = G_VALUE_TYPE (value);
4939 /* the most common types are just basic plain glib types */
4940 if (type <= G_TYPE_MAKE_FUNDAMENTAL (G_TYPE_RESERVED_GLIB_LAST)) {
4944 if (type == GST_TYPE_ARRAY) {
4948 /* check recursively */
4949 size = gst_value_array_get_size (value);
4950 for (n = 0; n < size; n++) {
4951 kid = gst_value_array_get_value (value, n);
4952 if (!gst_value_is_fixed (kid))
4957 return gst_type_is_fixed (type);
4962 * @dest: the #GValue destination
4963 * @src: the #GValue to fixate
4965 * Fixate @src into a new value @dest.
4966 * For ranges, the first element is taken. For lists and arrays, the
4967 * first item is fixated and returned.
4968 * If @src is already fixed, this function returns FALSE.
4970 * Returns: true if @dest contains a fixated version of @src.
4973 gst_value_fixate (GValue * dest, const GValue * src)
4975 g_return_val_if_fail (G_IS_VALUE (src), FALSE);
4976 g_return_val_if_fail (dest != NULL, FALSE);
4978 if (G_VALUE_TYPE (src) == GST_TYPE_INT_RANGE) {
4979 g_value_init (dest, G_TYPE_INT);
4980 g_value_set_int (dest, gst_value_get_int_range_min (src));
4981 } else if (G_VALUE_TYPE (src) == GST_TYPE_DOUBLE_RANGE) {
4982 g_value_init (dest, G_TYPE_DOUBLE);
4983 g_value_set_double (dest, gst_value_get_double_range_min (src));
4984 } else if (G_VALUE_TYPE (src) == GST_TYPE_FRACTION_RANGE) {
4985 gst_value_init_and_copy (dest, gst_value_get_fraction_range_min (src));
4986 } else if (G_VALUE_TYPE (src) == GST_TYPE_LIST) {
4987 GValue temp = { 0 };
4989 /* list could be empty */
4990 if (gst_value_list_get_size (src) <= 0)
4993 gst_value_init_and_copy (&temp, gst_value_list_get_value (src, 0));
4995 if (!gst_value_fixate (dest, &temp)) {
4996 gst_value_move (dest, &temp);
4998 g_value_unset (&temp);
5000 } else if (G_VALUE_TYPE (src) == GST_TYPE_ARRAY) {
5001 gboolean res = FALSE;
5004 len = gst_value_array_get_size (src);
5005 g_value_init (dest, GST_TYPE_ARRAY);
5006 for (n = 0; n < len; n++) {
5008 const GValue *orig_kid = gst_value_array_get_value (src, n);
5010 if (!gst_value_fixate (&kid, orig_kid))
5011 gst_value_init_and_copy (&kid, orig_kid);
5014 gst_value_array_append_and_take_value (dest, &kid);
5018 g_value_unset (dest);
5032 /* helper functions */
5034 gst_value_init_fraction (GValue * value)
5036 value->data[0].v_int = 0;
5037 value->data[1].v_int = 1;
5041 gst_value_copy_fraction (const GValue * src_value, GValue * dest_value)
5043 dest_value->data[0].v_int = src_value->data[0].v_int;
5044 dest_value->data[1].v_int = src_value->data[1].v_int;
5048 gst_value_collect_fraction (GValue * value, guint n_collect_values,
5049 GTypeCValue * collect_values, guint collect_flags)
5051 if (n_collect_values != 2)
5052 return g_strdup_printf ("not enough value locations for `%s' passed",
5053 G_VALUE_TYPE_NAME (value));
5054 if (collect_values[1].v_int == 0)
5055 return g_strdup_printf ("passed '0' as denominator for `%s'",
5056 G_VALUE_TYPE_NAME (value));
5057 if (collect_values[0].v_int < -G_MAXINT)
5060 ("passed value smaller than -G_MAXINT as numerator for `%s'",
5061 G_VALUE_TYPE_NAME (value));
5062 if (collect_values[1].v_int < -G_MAXINT)
5065 ("passed value smaller than -G_MAXINT as denominator for `%s'",
5066 G_VALUE_TYPE_NAME (value));
5068 gst_value_set_fraction (value,
5069 collect_values[0].v_int, collect_values[1].v_int);
5075 gst_value_lcopy_fraction (const GValue * value, guint n_collect_values,
5076 GTypeCValue * collect_values, guint collect_flags)
5078 gint *numerator = collect_values[0].v_pointer;
5079 gint *denominator = collect_values[1].v_pointer;
5082 return g_strdup_printf ("numerator for `%s' passed as NULL",
5083 G_VALUE_TYPE_NAME (value));
5085 return g_strdup_printf ("denominator for `%s' passed as NULL",
5086 G_VALUE_TYPE_NAME (value));
5088 *numerator = value->data[0].v_int;
5089 *denominator = value->data[1].v_int;
5095 * gst_value_set_fraction:
5096 * @value: a GValue initialized to #GST_TYPE_FRACTION
5097 * @numerator: the numerator of the fraction
5098 * @denominator: the denominator of the fraction
5100 * Sets @value to the fraction specified by @numerator over @denominator.
5101 * The fraction gets reduced to the smallest numerator and denominator,
5102 * and if necessary the sign is moved to the numerator.
5105 gst_value_set_fraction (GValue * value, gint numerator, gint denominator)
5109 g_return_if_fail (GST_VALUE_HOLDS_FRACTION (value));
5110 g_return_if_fail (denominator != 0);
5111 g_return_if_fail (denominator >= -G_MAXINT);
5112 g_return_if_fail (numerator >= -G_MAXINT);
5114 /* normalize sign */
5115 if (denominator < 0) {
5116 numerator = -numerator;
5117 denominator = -denominator;
5120 /* check for reduction */
5121 gcd = gst_util_greatest_common_divisor (numerator, denominator);
5127 g_assert (denominator > 0);
5129 value->data[0].v_int = numerator;
5130 value->data[1].v_int = denominator;
5134 * gst_value_get_fraction_numerator:
5135 * @value: a GValue initialized to #GST_TYPE_FRACTION
5137 * Gets the numerator of the fraction specified by @value.
5139 * Returns: the numerator of the fraction.
5142 gst_value_get_fraction_numerator (const GValue * value)
5144 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (value), 0);
5146 return value->data[0].v_int;
5150 * gst_value_get_fraction_denominator:
5151 * @value: a GValue initialized to #GST_TYPE_FRACTION
5153 * Gets the denominator of the fraction specified by @value.
5155 * Returns: the denominator of the fraction.
5158 gst_value_get_fraction_denominator (const GValue * value)
5160 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (value), 1);
5162 return value->data[1].v_int;
5166 * gst_value_fraction_multiply:
5167 * @product: a GValue initialized to #GST_TYPE_FRACTION
5168 * @factor1: a GValue initialized to #GST_TYPE_FRACTION
5169 * @factor2: a GValue initialized to #GST_TYPE_FRACTION
5171 * Multiplies the two #GValue items containing a #GST_TYPE_FRACTION and sets
5172 * @product to the product of the two fractions.
5174 * Returns: FALSE in case of an error (like integer overflow), TRUE otherwise.
5177 gst_value_fraction_multiply (GValue * product, const GValue * factor1,
5178 const GValue * factor2)
5180 gint n1, n2, d1, d2;
5183 g_return_val_if_fail (product != NULL, FALSE);
5184 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (factor1), FALSE);
5185 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (factor2), FALSE);
5187 n1 = factor1->data[0].v_int;
5188 n2 = factor2->data[0].v_int;
5189 d1 = factor1->data[1].v_int;
5190 d2 = factor2->data[1].v_int;
5192 if (!gst_util_fraction_multiply (n1, d1, n2, d2, &res_n, &res_d))
5195 gst_value_set_fraction (product, res_n, res_d);
5201 * gst_value_fraction_subtract:
5202 * @dest: a GValue initialized to #GST_TYPE_FRACTION
5203 * @minuend: a GValue initialized to #GST_TYPE_FRACTION
5204 * @subtrahend: a GValue initialized to #GST_TYPE_FRACTION
5206 * Subtracts the @subtrahend from the @minuend and sets @dest to the result.
5208 * Returns: FALSE in case of an error (like integer overflow), TRUE otherwise.
5211 gst_value_fraction_subtract (GValue * dest,
5212 const GValue * minuend, const GValue * subtrahend)
5214 gint n1, n2, d1, d2;
5217 g_return_val_if_fail (dest != NULL, FALSE);
5218 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (minuend), FALSE);
5219 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (subtrahend), FALSE);
5221 n1 = minuend->data[0].v_int;
5222 n2 = subtrahend->data[0].v_int;
5223 d1 = minuend->data[1].v_int;
5224 d2 = subtrahend->data[1].v_int;
5226 if (!gst_util_fraction_add (n1, d1, -n2, d2, &res_n, &res_d))
5228 gst_value_set_fraction (dest, res_n, res_d);
5234 gst_value_serialize_fraction (const GValue * value)
5236 gint32 numerator = value->data[0].v_int;
5237 gint32 denominator = value->data[1].v_int;
5238 gboolean positive = TRUE;
5240 /* get the sign and make components absolute */
5241 if (numerator < 0) {
5242 numerator = -numerator;
5243 positive = !positive;
5245 if (denominator < 0) {
5246 denominator = -denominator;
5247 positive = !positive;
5250 return g_strdup_printf ("%s%d/%d",
5251 positive ? "" : "-", numerator, denominator);
5255 gst_value_deserialize_fraction (GValue * dest, const gchar * s)
5260 if (G_UNLIKELY (s == NULL))
5263 if (G_UNLIKELY (dest == NULL || !GST_VALUE_HOLDS_FRACTION (dest)))
5266 if (sscanf (s, "%d/%d%n", &num, &den, &num_chars) >= 2) {
5267 if (s[num_chars] != 0)
5272 gst_value_set_fraction (dest, num, den);
5274 } else if (g_ascii_strcasecmp (s, "1/max") == 0) {
5275 gst_value_set_fraction (dest, 1, G_MAXINT);
5277 } else if (sscanf (s, "%d%n", &num, &num_chars) >= 1) {
5278 if (s[num_chars] != 0)
5280 gst_value_set_fraction (dest, num, 1);
5282 } else if (g_ascii_strcasecmp (s, "min") == 0) {
5283 gst_value_set_fraction (dest, -G_MAXINT, 1);
5285 } else if (g_ascii_strcasecmp (s, "max") == 0) {
5286 gst_value_set_fraction (dest, G_MAXINT, 1);
5294 gst_value_transform_fraction_string (const GValue * src_value,
5295 GValue * dest_value)
5297 dest_value->data[0].v_pointer = gst_value_serialize_fraction (src_value);
5301 gst_value_transform_string_fraction (const GValue * src_value,
5302 GValue * dest_value)
5304 if (!gst_value_deserialize_fraction (dest_value,
5305 src_value->data[0].v_pointer))
5306 /* If the deserialize fails, ensure we leave the fraction in a
5307 * valid, if incorrect, state */
5308 gst_value_set_fraction (dest_value, 0, 1);
5312 gst_value_transform_double_fraction (const GValue * src_value,
5313 GValue * dest_value)
5315 gdouble src = g_value_get_double (src_value);
5318 gst_util_double_to_fraction (src, &n, &d);
5319 gst_value_set_fraction (dest_value, n, d);
5323 gst_value_transform_float_fraction (const GValue * src_value,
5324 GValue * dest_value)
5326 gfloat src = g_value_get_float (src_value);
5329 gst_util_double_to_fraction (src, &n, &d);
5330 gst_value_set_fraction (dest_value, n, d);
5334 gst_value_transform_fraction_double (const GValue * src_value,
5335 GValue * dest_value)
5337 dest_value->data[0].v_double = ((double) src_value->data[0].v_int) /
5338 ((double) src_value->data[1].v_int);
5342 gst_value_transform_fraction_float (const GValue * src_value,
5343 GValue * dest_value)
5345 dest_value->data[0].v_float = ((float) src_value->data[0].v_int) /
5346 ((float) src_value->data[1].v_int);
5350 gst_value_compare_fraction (const GValue * value1, const GValue * value2)
5356 n1 = value1->data[0].v_int;
5357 n2 = value2->data[0].v_int;
5358 d1 = value1->data[1].v_int;
5359 d2 = value2->data[1].v_int;
5361 /* fractions are reduced when set, so we can quickly see if they're equal */
5362 if (n1 == n2 && d1 == d2)
5363 return GST_VALUE_EQUAL;
5365 if (d1 == 0 && d2 == 0)
5366 return GST_VALUE_UNORDERED;
5368 return GST_VALUE_GREATER_THAN;
5370 return GST_VALUE_LESS_THAN;
5372 ret = gst_util_fraction_compare (n1, d1, n2, d2);
5374 return GST_VALUE_LESS_THAN;
5376 return GST_VALUE_GREATER_THAN;
5378 /* Equality can't happen here because we check for that
5380 g_return_val_if_reached (GST_VALUE_UNORDERED);
5388 gst_value_compare_date (const GValue * value1, const GValue * value2)
5390 const GDate *date1 = (const GDate *) g_value_get_boxed (value1);
5391 const GDate *date2 = (const GDate *) g_value_get_boxed (value2);
5395 return GST_VALUE_EQUAL;
5397 if ((date1 == NULL || !g_date_valid (date1))
5398 && (date2 != NULL && g_date_valid (date2))) {
5399 return GST_VALUE_LESS_THAN;
5402 if ((date2 == NULL || !g_date_valid (date2))
5403 && (date1 != NULL && g_date_valid (date1))) {
5404 return GST_VALUE_GREATER_THAN;
5407 if (date1 == NULL || date2 == NULL || !g_date_valid (date1)
5408 || !g_date_valid (date2)) {
5409 return GST_VALUE_UNORDERED;
5412 j1 = g_date_get_julian (date1);
5413 j2 = g_date_get_julian (date2);
5416 return GST_VALUE_EQUAL;
5418 return GST_VALUE_LESS_THAN;
5420 return GST_VALUE_GREATER_THAN;
5424 gst_value_serialize_date (const GValue * val)
5426 const GDate *date = (const GDate *) g_value_get_boxed (val);
5428 if (date == NULL || !g_date_valid (date))
5429 return g_strdup ("9999-99-99");
5431 return g_strdup_printf ("%04u-%02u-%02u", g_date_get_year (date),
5432 g_date_get_month (date), g_date_get_day (date));
5436 gst_value_deserialize_date (GValue * dest, const gchar * s)
5438 guint year, month, day;
5440 if (!s || sscanf (s, "%04u-%02u-%02u", &year, &month, &day) != 3)
5443 if (!g_date_valid_dmy (day, month, year))
5446 g_value_take_boxed (dest, g_date_new_dmy (day, month, year));
5455 gst_value_compare_date_time (const GValue * value1, const GValue * value2)
5457 const GstDateTime *date1 = (const GstDateTime *) g_value_get_boxed (value1);
5458 const GstDateTime *date2 = (const GstDateTime *) g_value_get_boxed (value2);
5461 return GST_VALUE_EQUAL;
5463 if ((date1 == NULL) && (date2 != NULL)) {
5464 return GST_VALUE_LESS_THAN;
5466 if ((date2 == NULL) && (date1 != NULL)) {
5467 return GST_VALUE_LESS_THAN;
5470 /* returns GST_VALUE_* */
5471 return __gst_date_time_compare (date1, date2);
5475 gst_value_serialize_date_time (const GValue * val)
5477 GstDateTime *date = (GstDateTime *) g_value_get_boxed (val);
5480 return g_strdup ("null");
5482 return __gst_date_time_serialize (date, TRUE);
5486 gst_value_deserialize_date_time (GValue * dest, const gchar * s)
5488 GstDateTime *datetime;
5490 if (!s || strcmp (s, "null") == 0) {
5494 datetime = gst_date_time_new_from_iso8601_string (s);
5495 if (datetime != NULL) {
5496 g_value_take_boxed (dest, datetime);
5499 GST_WARNING ("Failed to deserialize date time string '%s'", s);
5504 gst_value_transform_date_string (const GValue * src_value, GValue * dest_value)
5506 dest_value->data[0].v_pointer = gst_value_serialize_date (src_value);
5510 gst_value_transform_string_date (const GValue * src_value, GValue * dest_value)
5512 gst_value_deserialize_date (dest_value, src_value->data[0].v_pointer);
5520 /* helper functions */
5522 gst_value_init_bitmask (GValue * value)
5524 value->data[0].v_uint64 = 0;
5528 gst_value_copy_bitmask (const GValue * src_value, GValue * dest_value)
5530 dest_value->data[0].v_uint64 = src_value->data[0].v_uint64;
5534 gst_value_collect_bitmask (GValue * value, guint n_collect_values,
5535 GTypeCValue * collect_values, guint collect_flags)
5537 if (n_collect_values != 1)
5538 return g_strdup_printf ("not enough value locations for `%s' passed",
5539 G_VALUE_TYPE_NAME (value));
5541 gst_value_set_bitmask (value, (guint64) collect_values[0].v_int64);
5547 gst_value_lcopy_bitmask (const GValue * value, guint n_collect_values,
5548 GTypeCValue * collect_values, guint collect_flags)
5550 guint64 *bitmask = collect_values[0].v_pointer;
5553 return g_strdup_printf ("value for `%s' passed as NULL",
5554 G_VALUE_TYPE_NAME (value));
5556 *bitmask = value->data[0].v_uint64;
5562 * gst_value_set_bitmask:
5563 * @value: a GValue initialized to #GST_TYPE_FRACTION
5564 * @bitmask: the bitmask
5566 * Sets @value to the bitmask specified by @bitmask.
5569 gst_value_set_bitmask (GValue * value, guint64 bitmask)
5571 g_return_if_fail (GST_VALUE_HOLDS_BITMASK (value));
5573 value->data[0].v_uint64 = bitmask;
5577 * gst_value_get_bitmask:
5578 * @value: a GValue initialized to #GST_TYPE_FRACTION
5580 * Gets the bitmask specified by @value.
5582 * Returns: the bitmask.
5585 gst_value_get_bitmask (const GValue * value)
5587 g_return_val_if_fail (GST_VALUE_HOLDS_BITMASK (value), 0);
5589 return value->data[0].v_uint64;
5593 gst_value_serialize_bitmask (const GValue * value)
5595 guint64 bitmask = value->data[0].v_uint64;
5597 return g_strdup_printf ("0x%016" G_GINT64_MODIFIER "x", bitmask);
5601 gst_value_deserialize_bitmask (GValue * dest, const gchar * s)
5603 gchar *endptr = NULL;
5606 if (G_UNLIKELY (s == NULL))
5609 if (G_UNLIKELY (dest == NULL || !GST_VALUE_HOLDS_BITMASK (dest)))
5612 val = g_ascii_strtoull (s, &endptr, 16);
5613 if (val == G_MAXUINT64 && (errno == ERANGE || errno == EINVAL))
5615 if (val == 0 && endptr == s)
5618 gst_value_set_bitmask (dest, val);
5624 gst_value_transform_bitmask_string (const GValue * src_value,
5625 GValue * dest_value)
5627 dest_value->data[0].v_pointer = gst_value_serialize_bitmask (src_value);
5631 gst_value_transform_string_bitmask (const GValue * src_value,
5632 GValue * dest_value)
5634 if (!gst_value_deserialize_bitmask (dest_value, src_value->data[0].v_pointer))
5635 gst_value_set_bitmask (dest_value, 0);
5639 gst_value_transform_uint64_bitmask (const GValue * src_value,
5640 GValue * dest_value)
5642 dest_value->data[0].v_uint64 = src_value->data[0].v_uint64;
5646 gst_value_transform_bitmask_uint64 (const GValue * src_value,
5647 GValue * dest_value)
5649 dest_value->data[0].v_uint64 = src_value->data[0].v_uint64;
5653 gst_value_intersect_bitmask_bitmask (GValue * dest, const GValue * src1,
5654 const GValue * src2)
5658 s1 = gst_value_get_bitmask (src1);
5659 s2 = gst_value_get_bitmask (src2);
5662 g_value_init (dest, GST_TYPE_BITMASK);
5663 gst_value_set_bitmask (dest, s1 & s2);
5670 gst_value_union_bitmask_bitmask (GValue * dest, const GValue * src1,
5671 const GValue * src2)
5675 s1 = gst_value_get_bitmask (src1);
5676 s2 = gst_value_get_bitmask (src2);
5678 g_value_init (dest, GST_TYPE_BITMASK);
5679 gst_value_set_bitmask (dest, s1 | s2);
5685 gst_value_subtract_bitmask_bitmask (GValue * dest,
5686 const GValue * minuend, const GValue * subtrahend)
5690 g_return_val_if_fail (GST_VALUE_HOLDS_BITMASK (minuend), FALSE);
5691 g_return_val_if_fail (GST_VALUE_HOLDS_BITMASK (subtrahend), FALSE);
5693 m = minuend->data[0].v_uint64;
5694 s = subtrahend->data[0].v_uint64;
5698 g_value_init (dest, GST_TYPE_BITMASK);
5699 gst_value_set_bitmask (dest, r);
5705 gst_value_compare_bitmask (const GValue * value1, const GValue * value2)
5709 v1 = value1->data[0].v_uint64;
5710 v2 = value2->data[0].v_uint64;
5713 return GST_VALUE_EQUAL;
5715 return GST_VALUE_UNORDERED;
5719 gst_value_transform_object_string (const GValue * src_value,
5720 GValue * dest_value)
5725 obj = g_value_get_object (src_value);
5728 g_strdup_printf ("(%s) %s", G_OBJECT_TYPE_NAME (obj),
5729 GST_OBJECT_NAME (obj));
5731 str = g_strdup ("NULL");
5734 dest_value->data[0].v_pointer = str;
5737 static GTypeInfo _info = {
5750 static GTypeFundamentalInfo _finfo = {
5754 #define FUNC_VALUE_GET_TYPE(type, name) \
5755 GType gst_ ## type ## _get_type (void) \
5757 static volatile GType gst_ ## type ## _type = 0; \
5759 if (g_once_init_enter (&gst_ ## type ## _type)) { \
5761 _info.value_table = & _gst_ ## type ## _value_table; \
5762 _type = g_type_register_fundamental ( \
5763 g_type_fundamental_next (), \
5764 name, &_info, &_finfo, 0); \
5765 g_once_init_leave(&gst_ ## type ## _type, _type); \
5768 return gst_ ## type ## _type; \
5771 static const GTypeValueTable _gst_int_range_value_table = {
5772 gst_value_init_int_range,
5773 gst_value_free_int_range,
5774 gst_value_copy_int_range,
5777 gst_value_collect_int_range,
5779 gst_value_lcopy_int_range
5782 FUNC_VALUE_GET_TYPE (int_range, "GstIntRange");
5784 static const GTypeValueTable _gst_int64_range_value_table = {
5785 gst_value_init_int64_range,
5786 gst_value_free_int64_range,
5787 gst_value_copy_int64_range,
5790 gst_value_collect_int64_range,
5792 gst_value_lcopy_int64_range
5795 FUNC_VALUE_GET_TYPE (int64_range, "GstInt64Range");
5797 static const GTypeValueTable _gst_double_range_value_table = {
5798 gst_value_init_double_range,
5800 gst_value_copy_double_range,
5803 gst_value_collect_double_range,
5805 gst_value_lcopy_double_range
5808 FUNC_VALUE_GET_TYPE (double_range, "GstDoubleRange");
5810 static const GTypeValueTable _gst_fraction_range_value_table = {
5811 gst_value_init_fraction_range,
5812 gst_value_free_fraction_range,
5813 gst_value_copy_fraction_range,
5816 gst_value_collect_fraction_range,
5818 gst_value_lcopy_fraction_range
5821 FUNC_VALUE_GET_TYPE (fraction_range, "GstFractionRange");
5823 static const GTypeValueTable _gst_value_list_value_table = {
5824 gst_value_init_list_or_array,
5825 gst_value_free_list_or_array,
5826 gst_value_copy_list_or_array,
5827 gst_value_list_or_array_peek_pointer,
5829 gst_value_collect_list_or_array,
5831 gst_value_lcopy_list_or_array
5834 FUNC_VALUE_GET_TYPE (value_list, "GstValueList");
5836 static const GTypeValueTable _gst_value_array_value_table = {
5837 gst_value_init_list_or_array,
5838 gst_value_free_list_or_array,
5839 gst_value_copy_list_or_array,
5840 gst_value_list_or_array_peek_pointer,
5842 gst_value_collect_list_or_array,
5844 gst_value_lcopy_list_or_array
5847 FUNC_VALUE_GET_TYPE (value_array, "GstValueArray");
5849 static const GTypeValueTable _gst_fraction_value_table = {
5850 gst_value_init_fraction,
5852 gst_value_copy_fraction,
5855 gst_value_collect_fraction,
5857 gst_value_lcopy_fraction
5860 FUNC_VALUE_GET_TYPE (fraction, "GstFraction");
5862 G_DEFINE_BOXED_TYPE (GstDateTime, gst_date_time,
5863 (GBoxedCopyFunc) gst_date_time_ref, (GBoxedFreeFunc) gst_date_time_unref);
5865 static const GTypeValueTable _gst_bitmask_value_table = {
5866 gst_value_init_bitmask,
5868 gst_value_copy_bitmask,
5871 gst_value_collect_bitmask,
5873 gst_value_lcopy_bitmask
5876 FUNC_VALUE_GET_TYPE (bitmask, "GstBitmask");
5879 gst_g_thread_get_type (void)
5881 #if GLIB_CHECK_VERSION(2,35,3)
5882 return G_TYPE_THREAD;
5884 static volatile gsize type_id = 0;
5886 if (g_once_init_enter (&type_id)) {
5888 g_boxed_type_register_static (g_intern_static_string ("GstGThread"),
5889 (GBoxedCopyFunc) g_thread_ref,
5890 (GBoxedFreeFunc) g_thread_unref);
5891 g_once_init_leave (&type_id, tmp);
5899 _priv_gst_value_initialize (void)
5901 gst_value_table = g_array_new (FALSE, FALSE, sizeof (GstValueTable));
5902 gst_value_hash = g_hash_table_new (NULL, NULL);
5903 gst_value_union_funcs = g_array_new (FALSE, FALSE,
5904 sizeof (GstValueUnionInfo));
5905 gst_value_intersect_funcs = g_array_new (FALSE, FALSE,
5906 sizeof (GstValueIntersectInfo));
5907 gst_value_subtract_funcs = g_array_new (FALSE, FALSE,
5908 sizeof (GstValueSubtractInfo));
5911 static GstValueTable gst_value = {
5913 gst_value_compare_int_range,
5914 gst_value_serialize_int_range,
5915 gst_value_deserialize_int_range,
5918 gst_value.type = gst_int_range_get_type ();
5919 gst_value_register (&gst_value);
5923 static GstValueTable gst_value = {
5925 gst_value_compare_int64_range,
5926 gst_value_serialize_int64_range,
5927 gst_value_deserialize_int64_range,
5930 gst_value.type = gst_int64_range_get_type ();
5931 gst_value_register (&gst_value);
5935 static GstValueTable gst_value = {
5937 gst_value_compare_double_range,
5938 gst_value_serialize_double_range,
5939 gst_value_deserialize_double_range,
5942 gst_value.type = gst_double_range_get_type ();
5943 gst_value_register (&gst_value);
5947 static GstValueTable gst_value = {
5949 gst_value_compare_fraction_range,
5950 gst_value_serialize_fraction_range,
5951 gst_value_deserialize_fraction_range,
5954 gst_value.type = gst_fraction_range_get_type ();
5955 gst_value_register (&gst_value);
5959 static GstValueTable gst_value = {
5961 gst_value_compare_list,
5962 gst_value_serialize_list,
5963 gst_value_deserialize_list,
5966 gst_value.type = gst_value_list_get_type ();
5967 gst_value_register (&gst_value);
5971 static GstValueTable gst_value = {
5973 gst_value_compare_array,
5974 gst_value_serialize_array,
5975 gst_value_deserialize_array,
5978 gst_value.type = gst_value_array_get_type ();
5979 gst_value_register (&gst_value);
5984 static const GTypeValueTable value_table = {
5985 gst_value_init_buffer,
5987 gst_value_copy_buffer,
5990 NULL, /*gst_value_collect_buffer, */
5992 NULL /*gst_value_lcopy_buffer */
5995 static GstValueTable gst_value = {
5997 gst_value_compare_buffer,
5998 gst_value_serialize_buffer,
5999 gst_value_deserialize_buffer,
6002 gst_value.type = GST_TYPE_BUFFER;
6003 gst_value_register (&gst_value);
6006 static GstValueTable gst_value = {
6008 gst_value_compare_sample,
6009 gst_value_serialize_sample,
6010 gst_value_deserialize_sample,
6013 gst_value.type = GST_TYPE_SAMPLE;
6014 gst_value_register (&gst_value);
6017 static GstValueTable gst_value = {
6019 gst_value_compare_fraction,
6020 gst_value_serialize_fraction,
6021 gst_value_deserialize_fraction,
6024 gst_value.type = gst_fraction_get_type ();
6025 gst_value_register (&gst_value);
6028 static GstValueTable gst_value = {
6031 gst_value_serialize_caps,
6032 gst_value_deserialize_caps,
6035 gst_value.type = GST_TYPE_CAPS;
6036 gst_value_register (&gst_value);
6039 static GstValueTable gst_value = {
6042 gst_value_serialize_segment,
6043 gst_value_deserialize_segment,
6046 gst_value.type = GST_TYPE_SEGMENT;
6047 gst_value_register (&gst_value);
6050 static GstValueTable gst_value = {
6053 gst_value_serialize_structure,
6054 gst_value_deserialize_structure,
6057 gst_value.type = GST_TYPE_STRUCTURE;
6058 gst_value_register (&gst_value);
6061 static GstValueTable gst_value = {
6064 gst_value_serialize_tag_list,
6065 gst_value_deserialize_tag_list,
6068 gst_value.type = GST_TYPE_TAG_LIST;
6069 gst_value_register (&gst_value);
6072 static GstValueTable gst_value = {
6074 gst_value_compare_date,
6075 gst_value_serialize_date,
6076 gst_value_deserialize_date,
6079 gst_value.type = G_TYPE_DATE;
6080 gst_value_register (&gst_value);
6083 static GstValueTable gst_value = {
6085 gst_value_compare_date_time,
6086 gst_value_serialize_date_time,
6087 gst_value_deserialize_date_time,
6090 gst_value.type = gst_date_time_get_type ();
6091 gst_value_register (&gst_value);
6095 static GstValueTable gst_value = {
6097 gst_value_compare_bitmask,
6098 gst_value_serialize_bitmask,
6099 gst_value_deserialize_bitmask,
6102 gst_value.type = gst_bitmask_get_type ();
6103 gst_value_register (&gst_value);
6106 REGISTER_SERIALIZATION (G_TYPE_DOUBLE, double);
6107 REGISTER_SERIALIZATION (G_TYPE_FLOAT, float);
6109 REGISTER_SERIALIZATION (G_TYPE_STRING, string);
6110 REGISTER_SERIALIZATION (G_TYPE_BOOLEAN, boolean);
6111 REGISTER_SERIALIZATION (G_TYPE_ENUM, enum);
6113 REGISTER_SERIALIZATION (G_TYPE_FLAGS, flags);
6115 REGISTER_SERIALIZATION (G_TYPE_INT, int);
6117 REGISTER_SERIALIZATION (G_TYPE_INT64, int64);
6118 REGISTER_SERIALIZATION (G_TYPE_LONG, long);
6120 REGISTER_SERIALIZATION (G_TYPE_UINT, uint);
6121 REGISTER_SERIALIZATION (G_TYPE_UINT64, uint64);
6122 REGISTER_SERIALIZATION (G_TYPE_ULONG, ulong);
6124 REGISTER_SERIALIZATION (G_TYPE_UCHAR, uchar);
6126 g_value_register_transform_func (GST_TYPE_INT_RANGE, G_TYPE_STRING,
6127 gst_value_transform_int_range_string);
6128 g_value_register_transform_func (GST_TYPE_INT64_RANGE, G_TYPE_STRING,
6129 gst_value_transform_int64_range_string);
6130 g_value_register_transform_func (GST_TYPE_DOUBLE_RANGE, G_TYPE_STRING,
6131 gst_value_transform_double_range_string);
6132 g_value_register_transform_func (GST_TYPE_FRACTION_RANGE, G_TYPE_STRING,
6133 gst_value_transform_fraction_range_string);
6134 g_value_register_transform_func (GST_TYPE_LIST, G_TYPE_STRING,
6135 gst_value_transform_list_string);
6136 g_value_register_transform_func (GST_TYPE_ARRAY, G_TYPE_STRING,
6137 gst_value_transform_array_string);
6138 g_value_register_transform_func (GST_TYPE_FRACTION, G_TYPE_STRING,
6139 gst_value_transform_fraction_string);
6140 g_value_register_transform_func (G_TYPE_STRING, GST_TYPE_FRACTION,
6141 gst_value_transform_string_fraction);
6142 g_value_register_transform_func (GST_TYPE_FRACTION, G_TYPE_DOUBLE,
6143 gst_value_transform_fraction_double);
6144 g_value_register_transform_func (GST_TYPE_FRACTION, G_TYPE_FLOAT,
6145 gst_value_transform_fraction_float);
6146 g_value_register_transform_func (G_TYPE_DOUBLE, GST_TYPE_FRACTION,
6147 gst_value_transform_double_fraction);
6148 g_value_register_transform_func (G_TYPE_FLOAT, GST_TYPE_FRACTION,
6149 gst_value_transform_float_fraction);
6150 g_value_register_transform_func (G_TYPE_DATE, G_TYPE_STRING,
6151 gst_value_transform_date_string);
6152 g_value_register_transform_func (G_TYPE_STRING, G_TYPE_DATE,
6153 gst_value_transform_string_date);
6154 g_value_register_transform_func (GST_TYPE_OBJECT, G_TYPE_STRING,
6155 gst_value_transform_object_string);
6156 g_value_register_transform_func (GST_TYPE_BITMASK, G_TYPE_UINT64,
6157 gst_value_transform_bitmask_uint64);
6158 g_value_register_transform_func (GST_TYPE_BITMASK, G_TYPE_STRING,
6159 gst_value_transform_bitmask_string);
6160 g_value_register_transform_func (G_TYPE_UINT64, GST_TYPE_BITMASK,
6161 gst_value_transform_uint64_bitmask);
6162 g_value_register_transform_func (G_TYPE_STRING, GST_TYPE_BITMASK,
6163 gst_value_transform_string_bitmask);
6165 gst_value_register_intersect_func (G_TYPE_INT, GST_TYPE_INT_RANGE,
6166 gst_value_intersect_int_int_range);
6167 gst_value_register_intersect_func (GST_TYPE_INT_RANGE, GST_TYPE_INT_RANGE,
6168 gst_value_intersect_int_range_int_range);
6169 gst_value_register_intersect_func (G_TYPE_INT64, GST_TYPE_INT64_RANGE,
6170 gst_value_intersect_int64_int64_range);
6171 gst_value_register_intersect_func (GST_TYPE_INT64_RANGE, GST_TYPE_INT64_RANGE,
6172 gst_value_intersect_int64_range_int64_range);
6173 gst_value_register_intersect_func (G_TYPE_DOUBLE, GST_TYPE_DOUBLE_RANGE,
6174 gst_value_intersect_double_double_range);
6175 gst_value_register_intersect_func (GST_TYPE_DOUBLE_RANGE,
6176 GST_TYPE_DOUBLE_RANGE, gst_value_intersect_double_range_double_range);
6177 gst_value_register_intersect_func (GST_TYPE_ARRAY,
6178 GST_TYPE_ARRAY, gst_value_intersect_array);
6179 gst_value_register_intersect_func (GST_TYPE_FRACTION, GST_TYPE_FRACTION_RANGE,
6180 gst_value_intersect_fraction_fraction_range);
6181 gst_value_register_intersect_func (GST_TYPE_FRACTION_RANGE,
6182 GST_TYPE_FRACTION_RANGE,
6183 gst_value_intersect_fraction_range_fraction_range);
6184 gst_value_register_intersect_func (GST_TYPE_BITMASK,
6185 GST_TYPE_BITMASK, gst_value_intersect_bitmask_bitmask);
6187 gst_value_register_subtract_func (G_TYPE_INT, GST_TYPE_INT_RANGE,
6188 gst_value_subtract_int_int_range);
6189 gst_value_register_subtract_func (GST_TYPE_INT_RANGE, G_TYPE_INT,
6190 gst_value_subtract_int_range_int);
6191 gst_value_register_subtract_func (GST_TYPE_INT_RANGE, GST_TYPE_INT_RANGE,
6192 gst_value_subtract_int_range_int_range);
6193 gst_value_register_subtract_func (G_TYPE_INT64, GST_TYPE_INT64_RANGE,
6194 gst_value_subtract_int64_int64_range);
6195 gst_value_register_subtract_func (GST_TYPE_INT64_RANGE, G_TYPE_INT64,
6196 gst_value_subtract_int64_range_int64);
6197 gst_value_register_subtract_func (GST_TYPE_INT64_RANGE, GST_TYPE_INT64_RANGE,
6198 gst_value_subtract_int64_range_int64_range);
6199 gst_value_register_subtract_func (G_TYPE_DOUBLE, GST_TYPE_DOUBLE_RANGE,
6200 gst_value_subtract_double_double_range);
6201 gst_value_register_subtract_func (GST_TYPE_DOUBLE_RANGE, G_TYPE_DOUBLE,
6202 gst_value_subtract_double_range_double);
6203 gst_value_register_subtract_func (GST_TYPE_DOUBLE_RANGE,
6204 GST_TYPE_DOUBLE_RANGE, gst_value_subtract_double_range_double_range);
6205 gst_value_register_subtract_func (GST_TYPE_FRACTION, GST_TYPE_FRACTION_RANGE,
6206 gst_value_subtract_fraction_fraction_range);
6207 gst_value_register_subtract_func (GST_TYPE_FRACTION_RANGE, GST_TYPE_FRACTION,
6208 gst_value_subtract_fraction_range_fraction);
6209 gst_value_register_subtract_func (GST_TYPE_FRACTION_RANGE,
6210 GST_TYPE_FRACTION_RANGE,
6211 gst_value_subtract_fraction_range_fraction_range);
6212 gst_value_register_subtract_func (GST_TYPE_BITMASK,
6213 GST_TYPE_BITMASK, gst_value_subtract_bitmask_bitmask);
6215 /* see bug #317246, #64994, #65041 */
6217 volatile GType date_type = G_TYPE_DATE;
6219 g_type_name (date_type);
6222 gst_value_register_union_func (G_TYPE_INT, GST_TYPE_INT_RANGE,
6223 gst_value_union_int_int_range);
6224 gst_value_register_union_func (GST_TYPE_INT_RANGE, GST_TYPE_INT_RANGE,
6225 gst_value_union_int_range_int_range);
6226 gst_value_register_union_func (GST_TYPE_BITMASK,
6227 GST_TYPE_BITMASK, gst_value_union_bitmask_bitmask);
6230 /* Implement these if needed */
6231 gst_value_register_union_func (GST_TYPE_FRACTION, GST_TYPE_FRACTION_RANGE,
6232 gst_value_union_fraction_fraction_range);
6233 gst_value_register_union_func (GST_TYPE_FRACTION_RANGE,
6234 GST_TYPE_FRACTION_RANGE, gst_value_union_fraction_range_fraction_range);