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.
40 #include "gst_private.h"
41 #include "glib-compat-private.h"
43 #include <gobject/gvaluecollector.h>
47 * @dest: a #GValue for the result
48 * @value1: a #GValue operand
49 * @value2: a #GValue operand
51 * Used by gst_value_union() to perform unification for a specific #GValue
52 * type. Register a new implementation with gst_value_register_union_func().
54 * Returns: %TRUE if a union was successful
56 typedef gboolean (*GstValueUnionFunc) (GValue * dest,
57 const GValue * value1, const GValue * value2);
59 /* GstValueIntersectFunc:
60 * @dest: (out caller-allocates): a #GValue for the result
61 * @value1: a #GValue operand
62 * @value2: a #GValue operand
64 * Used by gst_value_intersect() to perform intersection for a specific #GValue
65 * type. If the intersection is non-empty, the result is
66 * placed in @dest and %TRUE is returned. If the intersection is
67 * empty, @dest is unmodified and %FALSE is returned.
68 * Register a new implementation with gst_value_register_intersect_func().
70 * Returns: %TRUE if the values can intersect
72 typedef gboolean (*GstValueIntersectFunc) (GValue * dest,
73 const GValue * value1, const GValue * value2);
75 /* GstValueSubtractFunc:
76 * @dest: (out caller-allocates): a #GValue for the result
77 * @minuend: a #GValue operand
78 * @subtrahend: a #GValue operand
80 * Used by gst_value_subtract() to perform subtraction for a specific #GValue
81 * type. Register a new implementation with gst_value_register_subtract_func().
83 * Returns: %TRUE if the subtraction is not empty
85 typedef gboolean (*GstValueSubtractFunc) (GValue * dest,
86 const GValue * minuend, const GValue * subtrahend);
88 static void gst_value_register_union_func (GType type1,
89 GType type2, GstValueUnionFunc func);
90 static void gst_value_register_intersect_func (GType type1,
91 GType type2, GstValueIntersectFunc func);
92 static void gst_value_register_subtract_func (GType minuend_type,
93 GType subtrahend_type, GstValueSubtractFunc func);
95 typedef struct _GstValueUnionInfo GstValueUnionInfo;
96 struct _GstValueUnionInfo
100 GstValueUnionFunc func;
103 typedef struct _GstValueIntersectInfo GstValueIntersectInfo;
104 struct _GstValueIntersectInfo
108 GstValueIntersectFunc func;
111 typedef struct _GstValueSubtractInfo GstValueSubtractInfo;
112 struct _GstValueSubtractInfo
116 GstValueSubtractFunc func;
119 #define FUNDAMENTAL_TYPE_ID_MAX \
120 (G_TYPE_FUNDAMENTAL_MAX >> G_TYPE_FUNDAMENTAL_SHIFT)
121 #define FUNDAMENTAL_TYPE_ID(type) \
122 ((type) >> G_TYPE_FUNDAMENTAL_SHIFT)
124 #define VALUE_LIST_ARRAY(v) ((GArray *) (v)->data[0].v_pointer)
125 #define VALUE_LIST_SIZE(v) (VALUE_LIST_ARRAY(v)->len)
126 #define VALUE_LIST_GET_VALUE(v, index) ((const GValue *) &g_array_index (VALUE_LIST_ARRAY(v), GValue, (index)))
128 static GArray *gst_value_table;
129 static GHashTable *gst_value_hash;
130 static GstValueTable *gst_value_tables_fundamental[FUNDAMENTAL_TYPE_ID_MAX + 1];
131 static GArray *gst_value_union_funcs;
132 static GArray *gst_value_intersect_funcs;
133 static GArray *gst_value_subtract_funcs;
135 /* Forward declarations */
136 static gchar *gst_value_serialize_fraction (const GValue * value);
138 static GstValueCompareFunc gst_value_get_compare_func (const GValue * value1);
139 static gint gst_value_compare_with_func (const GValue * value1,
140 const GValue * value2, GstValueCompareFunc compare);
142 static gchar *gst_string_wrap (const gchar * s);
143 static gchar *gst_string_take_and_wrap (gchar * s);
144 static gchar *gst_string_unwrap (const gchar * s);
146 static void gst_value_move (GValue * dest, GValue * src);
147 static void _gst_value_list_append_and_take_value (GValue * value,
148 GValue * append_value);
149 static void _gst_value_array_append_and_take_value (GValue * value,
150 GValue * append_value);
152 static inline GstValueTable *
153 gst_value_hash_lookup_type (GType type)
155 if (G_LIKELY (G_TYPE_IS_FUNDAMENTAL (type)))
156 return gst_value_tables_fundamental[FUNDAMENTAL_TYPE_ID (type)];
158 return g_hash_table_lookup (gst_value_hash, (gpointer) type);
162 gst_value_hash_add_type (GType type, const GstValueTable * table)
164 if (G_TYPE_IS_FUNDAMENTAL (type))
165 gst_value_tables_fundamental[FUNDAMENTAL_TYPE_ID (type)] = (gpointer) table;
167 g_hash_table_insert (gst_value_hash, (gpointer) type, (gpointer) table);
174 /* two helper functions to serialize/stringify any type of list
175 * regular lists are done with { }, arrays with < >
178 gst_value_serialize_any_list (const GValue * value, const gchar * begin,
182 GArray *array = value->data[0].v_pointer;
186 guint alen = array->len;
188 /* estimate minimum string length to minimise re-allocs in GString */
189 s = g_string_sized_new (2 + (6 * alen) + 2);
190 g_string_append (s, begin);
191 for (i = 0; i < alen; i++) {
192 v = &g_array_index (array, GValue, i);
193 s_val = gst_value_serialize (v);
195 g_string_append (s, s_val);
198 g_string_append_len (s, ", ", 2);
201 GST_WARNING ("Could not serialize list/array value of type '%s'",
202 G_VALUE_TYPE_NAME (v));
205 g_string_append (s, end);
206 return g_string_free (s, FALSE);
210 gst_value_transform_any_list_string (const GValue * src_value,
211 GValue * dest_value, const gchar * begin, const gchar * end)
220 array = src_value->data[0].v_pointer;
223 /* estimate minimum string length to minimise re-allocs in GString */
224 s = g_string_sized_new (2 + (10 * alen) + 2);
225 g_string_append (s, begin);
226 for (i = 0; i < alen; i++) {
227 list_value = &g_array_index (array, GValue, i);
230 g_string_append_len (s, ", ", 2);
232 list_s = g_strdup_value_contents (list_value);
233 g_string_append (s, list_s);
236 g_string_append (s, end);
238 dest_value->data[0].v_pointer = g_string_free (s, FALSE);
242 * helper function to see if a type is fixed. Is used internally here and
243 * there. Do not export, since it doesn't work for types where the content
244 * decides the fixedness (e.g. GST_TYPE_ARRAY).
247 gst_type_is_fixed (GType type)
249 /* the basic int, string, double types */
250 if (type <= G_TYPE_MAKE_FUNDAMENTAL (G_TYPE_RESERVED_GLIB_LAST)) {
253 /* our fundamental types that are certainly not fixed */
254 if (type == GST_TYPE_INT_RANGE || type == GST_TYPE_DOUBLE_RANGE ||
255 type == GST_TYPE_INT64_RANGE ||
256 type == GST_TYPE_LIST || type == GST_TYPE_FRACTION_RANGE) {
259 /* other (boxed) types that are fixed */
260 if (type == GST_TYPE_BUFFER) {
264 if (G_TYPE_IS_FUNDAMENTAL (type) || G_TYPE_FUNDAMENTAL (type) <=
265 G_TYPE_MAKE_FUNDAMENTAL (G_TYPE_RESERVED_GLIB_LAST)) {
272 /* GValue functions usable for both regular lists and arrays */
274 gst_value_init_list_or_array (GValue * value)
276 value->data[0].v_pointer = g_array_new (FALSE, TRUE, sizeof (GValue));
280 copy_garray_of_gstvalue (const GArray * src)
286 dest = g_array_sized_new (FALSE, TRUE, sizeof (GValue), len);
287 g_array_set_size (dest, len);
288 for (i = 0; i < len; i++) {
289 gst_value_init_and_copy (&g_array_index (dest, GValue, i),
290 &g_array_index (src, GValue, i));
297 gst_value_copy_list_or_array (const GValue * src_value, GValue * dest_value)
299 dest_value->data[0].v_pointer =
300 copy_garray_of_gstvalue ((GArray *) src_value->data[0].v_pointer);
304 gst_value_free_list_or_array (GValue * value)
307 GArray *src = (GArray *) value->data[0].v_pointer;
310 if ((value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS) == 0) {
311 for (i = 0; i < len; i++) {
312 g_value_unset (&g_array_index (src, GValue, i));
314 g_array_free (src, TRUE);
319 gst_value_list_or_array_peek_pointer (const GValue * value)
321 return value->data[0].v_pointer;
325 gst_value_collect_list_or_array (GValue * value, guint n_collect_values,
326 GTypeCValue * collect_values, guint collect_flags)
328 if (collect_flags & G_VALUE_NOCOPY_CONTENTS) {
329 value->data[0].v_pointer = collect_values[0].v_pointer;
330 value->data[1].v_uint = G_VALUE_NOCOPY_CONTENTS;
332 value->data[0].v_pointer =
333 copy_garray_of_gstvalue ((GArray *) collect_values[0].v_pointer);
339 gst_value_lcopy_list_or_array (const GValue * value, guint n_collect_values,
340 GTypeCValue * collect_values, guint collect_flags)
342 GArray **dest = collect_values[0].v_pointer;
345 return g_strdup_printf ("value location for `%s' passed as NULL",
346 G_VALUE_TYPE_NAME (value));
347 if (!value->data[0].v_pointer)
348 return g_strdup_printf ("invalid value given for `%s'",
349 G_VALUE_TYPE_NAME (value));
350 if (collect_flags & G_VALUE_NOCOPY_CONTENTS) {
351 *dest = (GArray *) value->data[0].v_pointer;
353 *dest = copy_garray_of_gstvalue ((GArray *) value->data[0].v_pointer);
359 gst_value_list_or_array_get_basic_type (const GValue * value, GType * type)
361 if (G_UNLIKELY (value == NULL))
364 if (GST_VALUE_HOLDS_LIST (value)) {
365 if (VALUE_LIST_SIZE (value) == 0)
367 return gst_value_list_or_array_get_basic_type (VALUE_LIST_GET_VALUE (value,
370 if (GST_VALUE_HOLDS_ARRAY (value)) {
371 const GArray *array = (const GArray *) value->data[0].v_pointer;
374 return gst_value_list_or_array_get_basic_type (&g_array_index (array,
378 *type = G_VALUE_TYPE (value);
383 #define IS_RANGE_COMPAT(type1,type2,t1,t2) \
384 (((t1) == (type1) && (t2) == (type2)) || ((t2) == (type1) && (t1) == (type2)))
387 gst_value_list_or_array_are_compatible (const GValue * value1,
388 const GValue * value2)
390 GType basic_type1, basic_type2;
392 /* empty or same type is OK */
393 if (!gst_value_list_or_array_get_basic_type (value1, &basic_type1) ||
394 !gst_value_list_or_array_get_basic_type (value2, &basic_type2) ||
395 basic_type1 == basic_type2)
398 /* ranges are distinct types for each bound type... */
399 if (IS_RANGE_COMPAT (G_TYPE_INT, GST_TYPE_INT_RANGE, basic_type1,
402 if (IS_RANGE_COMPAT (G_TYPE_INT64, GST_TYPE_INT64_RANGE, basic_type1,
405 if (IS_RANGE_COMPAT (G_TYPE_DOUBLE, GST_TYPE_DOUBLE_RANGE, basic_type1,
408 if (IS_RANGE_COMPAT (GST_TYPE_FRACTION, GST_TYPE_FRACTION_RANGE, basic_type1,
416 _gst_value_list_append_and_take_value (GValue * value, GValue * append_value)
418 g_array_append_vals ((GArray *) value->data[0].v_pointer, append_value, 1);
419 memset (append_value, 0, sizeof (GValue));
423 * gst_value_list_append_and_take_value:
424 * @value: a #GValue of type #GST_TYPE_LIST
425 * @append_value: (transfer full): the value to append
427 * Appends @append_value to the GstValueList in @value.
432 gst_value_list_append_and_take_value (GValue * value, GValue * append_value)
434 g_return_if_fail (GST_VALUE_HOLDS_LIST (value));
435 g_return_if_fail (G_IS_VALUE (append_value));
436 g_return_if_fail (gst_value_list_or_array_are_compatible (value,
439 _gst_value_list_append_and_take_value (value, append_value);
443 * gst_value_list_append_value:
444 * @value: a #GValue of type #GST_TYPE_LIST
445 * @append_value: (transfer none): the value to append
447 * Appends @append_value to the GstValueList in @value.
450 gst_value_list_append_value (GValue * value, const GValue * append_value)
454 g_return_if_fail (GST_VALUE_HOLDS_LIST (value));
455 g_return_if_fail (G_IS_VALUE (append_value));
456 g_return_if_fail (gst_value_list_or_array_are_compatible (value,
459 gst_value_init_and_copy (&val, append_value);
460 g_array_append_vals ((GArray *) value->data[0].v_pointer, &val, 1);
464 * gst_value_list_prepend_value:
465 * @value: a #GValue of type #GST_TYPE_LIST
466 * @prepend_value: the value to prepend
468 * Prepends @prepend_value to the GstValueList in @value.
471 gst_value_list_prepend_value (GValue * value, const GValue * prepend_value)
475 g_return_if_fail (GST_VALUE_HOLDS_LIST (value));
476 g_return_if_fail (G_IS_VALUE (prepend_value));
477 g_return_if_fail (gst_value_list_or_array_are_compatible (value,
480 gst_value_init_and_copy (&val, prepend_value);
481 g_array_prepend_vals ((GArray *) value->data[0].v_pointer, &val, 1);
485 * gst_value_list_concat:
486 * @dest: (out caller-allocates): an uninitialized #GValue to take the result
490 * Concatenates copies of @value1 and @value2 into a list. Values that are not
491 * of type #GST_TYPE_LIST are treated as if they were lists of length 1.
492 * @dest will be initialized to the type #GST_TYPE_LIST.
495 gst_value_list_concat (GValue * dest, const GValue * value1,
496 const GValue * value2)
498 guint i, value1_length, value2_length;
501 g_return_if_fail (dest != NULL);
502 g_return_if_fail (G_VALUE_TYPE (dest) == 0);
503 g_return_if_fail (G_IS_VALUE (value1));
504 g_return_if_fail (G_IS_VALUE (value2));
505 g_return_if_fail (gst_value_list_or_array_are_compatible (value1, value2));
508 (GST_VALUE_HOLDS_LIST (value1) ? VALUE_LIST_SIZE (value1) : 1);
510 (GST_VALUE_HOLDS_LIST (value2) ? VALUE_LIST_SIZE (value2) : 1);
511 g_value_init (dest, GST_TYPE_LIST);
512 array = (GArray *) dest->data[0].v_pointer;
513 g_array_set_size (array, value1_length + value2_length);
515 if (GST_VALUE_HOLDS_LIST (value1)) {
516 for (i = 0; i < value1_length; i++) {
517 gst_value_init_and_copy (&g_array_index (array, GValue, i),
518 VALUE_LIST_GET_VALUE (value1, i));
521 gst_value_init_and_copy (&g_array_index (array, GValue, 0), value1);
524 if (GST_VALUE_HOLDS_LIST (value2)) {
525 for (i = 0; i < value2_length; i++) {
526 gst_value_init_and_copy (&g_array_index (array, GValue,
527 i + value1_length), VALUE_LIST_GET_VALUE (value2, i));
530 gst_value_init_and_copy (&g_array_index (array, GValue, value1_length),
535 /* same as gst_value_list_concat() but takes ownership of GValues */
537 gst_value_list_concat_and_take_values (GValue * dest, GValue * val1,
540 guint i, val1_length, val2_length;
541 gboolean val1_is_list;
542 gboolean val2_is_list;
545 g_assert (dest != NULL);
546 g_assert (G_VALUE_TYPE (dest) == 0);
547 g_assert (G_IS_VALUE (val1));
548 g_assert (G_IS_VALUE (val2));
549 g_assert (gst_value_list_or_array_are_compatible (val1, val2));
551 val1_is_list = GST_VALUE_HOLDS_LIST (val1);
552 val1_length = (val1_is_list ? VALUE_LIST_SIZE (val1) : 1);
554 val2_is_list = GST_VALUE_HOLDS_LIST (val2);
555 val2_length = (val2_is_list ? VALUE_LIST_SIZE (val2) : 1);
557 g_value_init (dest, GST_TYPE_LIST);
558 array = (GArray *) dest->data[0].v_pointer;
559 g_array_set_size (array, val1_length + val2_length);
562 for (i = 0; i < val1_length; i++) {
563 g_array_index (array, GValue, i) = *VALUE_LIST_GET_VALUE (val1, i);
565 g_array_set_size (VALUE_LIST_ARRAY (val1), 0);
566 g_value_unset (val1);
568 g_array_index (array, GValue, 0) = *val1;
569 G_VALUE_TYPE (val1) = G_TYPE_INVALID;
573 for (i = 0; i < val2_length; i++) {
574 const GValue *v2 = VALUE_LIST_GET_VALUE (val2, i);
575 g_array_index (array, GValue, i + val1_length) = *v2;
577 g_array_set_size (VALUE_LIST_ARRAY (val2), 0);
578 g_value_unset (val2);
580 g_array_index (array, GValue, val1_length) = *val2;
581 G_VALUE_TYPE (val2) = G_TYPE_INVALID;
586 * gst_value_list_merge:
587 * @dest: (out caller-allocates): an uninitialized #GValue to take the result
591 * Merges copies of @value1 and @value2. Values that are not
592 * of type #GST_TYPE_LIST are treated as if they were lists of length 1.
594 * The result will be put into @dest and will either be a list that will not
595 * contain any duplicates, or a non-list type (if @value1 and @value2
599 gst_value_list_merge (GValue * dest, const GValue * value1,
600 const GValue * value2)
602 guint i, j, k, value1_length, value2_length, skipped;
607 g_return_if_fail (dest != NULL);
608 g_return_if_fail (G_VALUE_TYPE (dest) == 0);
609 g_return_if_fail (G_IS_VALUE (value1));
610 g_return_if_fail (G_IS_VALUE (value2));
611 g_return_if_fail (gst_value_list_or_array_are_compatible (value1, value2));
614 (GST_VALUE_HOLDS_LIST (value1) ? VALUE_LIST_SIZE (value1) : 1);
616 (GST_VALUE_HOLDS_LIST (value2) ? VALUE_LIST_SIZE (value2) : 1);
617 g_value_init (dest, GST_TYPE_LIST);
618 array = (GArray *) dest->data[0].v_pointer;
619 g_array_set_size (array, value1_length + value2_length);
621 if (GST_VALUE_HOLDS_LIST (value1)) {
622 for (i = 0; i < value1_length; i++) {
623 gst_value_init_and_copy (&g_array_index (array, GValue, i),
624 VALUE_LIST_GET_VALUE (value1, i));
627 gst_value_init_and_copy (&g_array_index (array, GValue, 0), value1);
632 if (GST_VALUE_HOLDS_LIST (value2)) {
633 for (i = 0; i < value2_length; i++) {
635 src = VALUE_LIST_GET_VALUE (value2, i);
636 for (k = 0; k < value1_length; k++) {
637 if (gst_value_compare (&g_array_index (array, GValue, k),
638 src) == GST_VALUE_EQUAL) {
645 gst_value_init_and_copy (&g_array_index (array, GValue, j), src);
651 for (k = 0; k < value1_length; k++) {
652 if (gst_value_compare (&g_array_index (array, GValue, k),
653 value2) == GST_VALUE_EQUAL) {
660 gst_value_init_and_copy (&g_array_index (array, GValue, j), value2);
664 guint new_size = value1_length + (value2_length - skipped);
668 g_array_set_size (array, new_size);
672 /* size is 1, take single value in list and make it new dest */
673 single_dest = g_array_index (array, GValue, 0);
675 /* clean up old value allocations: must set array size to 0, because
676 * allocated values are not inited meaning g_value_unset() will not
678 g_array_set_size (array, 0);
679 g_value_unset (dest);
681 /* the single value is our new result */
688 * gst_value_list_get_size:
689 * @value: a #GValue of type #GST_TYPE_LIST
691 * Gets the number of values contained in @value.
693 * Returns: the number of values
696 gst_value_list_get_size (const GValue * value)
698 g_return_val_if_fail (GST_VALUE_HOLDS_LIST (value), 0);
700 return ((GArray *) value->data[0].v_pointer)->len;
704 * gst_value_list_get_value:
705 * @value: a #GValue of type #GST_TYPE_LIST
706 * @index: index of value to get from the list
708 * Gets the value that is a member of the list contained in @value and
709 * has the index @index.
711 * Returns: (transfer none): the value at the given index
714 gst_value_list_get_value (const GValue * value, guint index)
716 g_return_val_if_fail (GST_VALUE_HOLDS_LIST (value), NULL);
717 g_return_val_if_fail (index < VALUE_LIST_SIZE (value), NULL);
719 return (const GValue *) &g_array_index ((GArray *) value->data[0].v_pointer,
724 * gst_value_array_append_value:
725 * @value: a #GValue of type #GST_TYPE_ARRAY
726 * @append_value: the value to append
728 * Appends @append_value to the GstValueArray in @value.
731 gst_value_array_append_value (GValue * value, const GValue * append_value)
735 g_return_if_fail (GST_VALUE_HOLDS_ARRAY (value));
736 g_return_if_fail (G_IS_VALUE (append_value));
737 g_return_if_fail (gst_value_list_or_array_are_compatible (value,
740 gst_value_init_and_copy (&val, append_value);
741 g_array_append_vals ((GArray *) value->data[0].v_pointer, &val, 1);
745 _gst_value_array_append_and_take_value (GValue * value, GValue * append_value)
747 g_array_append_vals ((GArray *) value->data[0].v_pointer, append_value, 1);
748 memset (append_value, 0, sizeof (GValue));
752 * gst_value_array_append_and_take_value:
753 * @value: a #GValue of type #GST_TYPE_ARRAY
754 * @append_value: (transfer full): the value to append
756 * Appends @append_value to the GstValueArray in @value.
761 gst_value_array_append_and_take_value (GValue * value, GValue * append_value)
763 g_return_if_fail (GST_VALUE_HOLDS_ARRAY (value));
764 g_return_if_fail (G_IS_VALUE (append_value));
765 g_return_if_fail (gst_value_list_or_array_are_compatible (value,
768 _gst_value_array_append_and_take_value (value, append_value);
772 * gst_value_array_prepend_value:
773 * @value: a #GValue of type #GST_TYPE_ARRAY
774 * @prepend_value: the value to prepend
776 * Prepends @prepend_value to the GstValueArray in @value.
779 gst_value_array_prepend_value (GValue * value, const GValue * prepend_value)
783 g_return_if_fail (GST_VALUE_HOLDS_ARRAY (value));
784 g_return_if_fail (G_IS_VALUE (prepend_value));
785 g_return_if_fail (gst_value_list_or_array_are_compatible (value,
788 gst_value_init_and_copy (&val, prepend_value);
789 g_array_prepend_vals ((GArray *) value->data[0].v_pointer, &val, 1);
793 * gst_value_array_get_size:
794 * @value: a #GValue of type #GST_TYPE_ARRAY
796 * Gets the number of values contained in @value.
798 * Returns: the number of values
801 gst_value_array_get_size (const GValue * value)
803 g_return_val_if_fail (GST_VALUE_HOLDS_ARRAY (value), 0);
805 return ((GArray *) value->data[0].v_pointer)->len;
809 * gst_value_array_get_value:
810 * @value: a #GValue of type #GST_TYPE_ARRAY
811 * @index: index of value to get from the array
813 * Gets the value that is a member of the array contained in @value and
814 * has the index @index.
816 * Returns: (transfer none): the value at the given index
819 gst_value_array_get_value (const GValue * value, guint index)
821 g_return_val_if_fail (GST_VALUE_HOLDS_ARRAY (value), NULL);
822 g_return_val_if_fail (index < gst_value_array_get_size (value), NULL);
824 return (const GValue *) &g_array_index ((GArray *) value->data[0].v_pointer,
829 gst_value_transform_list_string (const GValue * src_value, GValue * dest_value)
831 gst_value_transform_any_list_string (src_value, dest_value, "{ ", " }");
835 gst_value_transform_array_string (const GValue * src_value, GValue * dest_value)
837 gst_value_transform_any_list_string (src_value, dest_value, "< ", " >");
840 /* Do an unordered compare of the contents of a list */
842 gst_value_compare_list (const GValue * value1, const GValue * value2)
845 GArray *array1 = value1->data[0].v_pointer;
846 GArray *array2 = value2->data[0].v_pointer;
851 GstValueCompareFunc compare;
853 /* get length and do initial length check. */
855 if (len != array2->len)
856 return GST_VALUE_UNORDERED;
858 /* place to mark removed value indices of array2 */
859 removed = g_newa (guint8, len);
860 memset (removed, 0, len);
863 /* loop over array1, all items should be in array2. When we find an
864 * item in array2, remove it from array2 by marking it as removed */
865 for (i = 0; i < len; i++) {
866 v1 = &g_array_index (array1, GValue, i);
867 if ((compare = gst_value_get_compare_func (v1))) {
868 for (j = 0; j < len; j++) {
869 /* item is removed, we can skip it */
872 v2 = &g_array_index (array2, GValue, j);
873 if (gst_value_compare_with_func (v1, v2, compare) == GST_VALUE_EQUAL) {
874 /* mark item as removed now that we found it in array2 and
875 * decrement the number of remaining items in array2. */
881 /* item in array1 and not in array2, UNORDERED */
883 return GST_VALUE_UNORDERED;
885 return GST_VALUE_UNORDERED;
887 /* if not all items were removed, array2 contained something not in array1 */
889 return GST_VALUE_UNORDERED;
891 /* arrays are equal */
892 return GST_VALUE_EQUAL;
895 /* Perform an ordered comparison of the contents of an array */
897 gst_value_compare_array (const GValue * value1, const GValue * value2)
900 GArray *array1 = value1->data[0].v_pointer;
901 GArray *array2 = value2->data[0].v_pointer;
902 guint len = array1->len;
906 if (len != array2->len)
907 return GST_VALUE_UNORDERED;
909 for (i = 0; i < len; i++) {
910 v1 = &g_array_index (array1, GValue, i);
911 v2 = &g_array_index (array2, GValue, i);
912 if (gst_value_compare (v1, v2) != GST_VALUE_EQUAL)
913 return GST_VALUE_UNORDERED;
916 return GST_VALUE_EQUAL;
920 gst_value_serialize_list (const GValue * value)
922 return gst_value_serialize_any_list (value, "{ ", " }");
926 gst_value_deserialize_list (GValue * dest, const gchar * s)
928 g_warning ("gst_value_deserialize_list: unimplemented");
933 gst_value_serialize_array (const GValue * value)
935 return gst_value_serialize_any_list (value, "< ", " >");
939 gst_value_deserialize_array (GValue * dest, const gchar * s)
941 g_warning ("gst_value_deserialize_array: unimplemented");
948 * Values in the range are defined as any value greater or equal
949 * to min*step, AND lesser or equal to max*step.
950 * For step == 1, this falls back to the traditional range semantics.
952 * data[0] = (min << 32) | (max)
957 #define INT_RANGE_MIN(v) ((gint) (((v)->data[0].v_uint64) >> 32))
958 #define INT_RANGE_MAX(v) ((gint) (((v)->data[0].v_uint64) & 0xffffffff))
959 #define INT_RANGE_STEP(v) ((v)->data[1].v_int)
962 gst_value_init_int_range (GValue * value)
964 G_STATIC_ASSERT (sizeof (gint) <= 2 * sizeof (guint64));
966 value->data[0].v_uint64 = 0;
967 value->data[1].v_int = 1;
971 gst_value_copy_int_range (const GValue * src_value, GValue * dest_value)
973 dest_value->data[0].v_uint64 = src_value->data[0].v_uint64;
974 dest_value->data[1].v_int = src_value->data[1].v_int;
978 gst_value_collect_int_range (GValue * value, guint n_collect_values,
979 GTypeCValue * collect_values, guint collect_flags)
981 if (n_collect_values != 2)
982 return g_strdup_printf ("not enough value locations for `%s' passed",
983 G_VALUE_TYPE_NAME (value));
984 if (collect_values[0].v_int >= collect_values[1].v_int)
985 return g_strdup_printf ("range start is not smaller than end for `%s'",
986 G_VALUE_TYPE_NAME (value));
988 gst_value_set_int_range_step (value, collect_values[0].v_int,
989 collect_values[1].v_int, 1);
995 gst_value_lcopy_int_range (const GValue * value, guint n_collect_values,
996 GTypeCValue * collect_values, guint collect_flags)
998 guint32 *int_range_start = collect_values[0].v_pointer;
999 guint32 *int_range_end = collect_values[1].v_pointer;
1001 if (!int_range_start)
1002 return g_strdup_printf ("start value location for `%s' passed as NULL",
1003 G_VALUE_TYPE_NAME (value));
1005 return g_strdup_printf ("end value location for `%s' passed as NULL",
1006 G_VALUE_TYPE_NAME (value));
1008 *int_range_start = INT_RANGE_MIN (value);
1009 *int_range_end = INT_RANGE_MAX (value);
1015 * gst_value_set_int_range_step:
1016 * @value: a GValue initialized to GST_TYPE_INT_RANGE
1017 * @start: the start of the range
1018 * @end: the end of the range
1019 * @step: the step of the range
1021 * Sets @value to the range specified by @start, @end and @step.
1024 gst_value_set_int_range_step (GValue * value, gint start, gint end, gint step)
1026 guint64 sstart, sstop;
1028 g_return_if_fail (GST_VALUE_HOLDS_INT_RANGE (value));
1029 g_return_if_fail (start < end);
1030 g_return_if_fail (step > 0);
1031 g_return_if_fail (start % step == 0);
1032 g_return_if_fail (end % step == 0);
1034 sstart = (guint) (start / step);
1035 sstop = (guint) (end / step);
1036 value->data[0].v_uint64 = (sstart << 32) | sstop;
1037 value->data[1].v_int = step;
1041 * gst_value_set_int_range:
1042 * @value: a GValue initialized to GST_TYPE_INT_RANGE
1043 * @start: the start of the range
1044 * @end: the end of the range
1046 * Sets @value to the range specified by @start and @end.
1049 gst_value_set_int_range (GValue * value, gint start, gint end)
1051 gst_value_set_int_range_step (value, start, end, 1);
1055 * gst_value_get_int_range_min:
1056 * @value: a GValue initialized to GST_TYPE_INT_RANGE
1058 * Gets the minimum of the range specified by @value.
1060 * Returns: the minimum of the range
1063 gst_value_get_int_range_min (const GValue * value)
1065 g_return_val_if_fail (GST_VALUE_HOLDS_INT_RANGE (value), 0);
1067 return INT_RANGE_MIN (value) * INT_RANGE_STEP (value);
1071 * gst_value_get_int_range_max:
1072 * @value: a GValue initialized to GST_TYPE_INT_RANGE
1074 * Gets the maximum of the range specified by @value.
1076 * Returns: the maximum of the range
1079 gst_value_get_int_range_max (const GValue * value)
1081 g_return_val_if_fail (GST_VALUE_HOLDS_INT_RANGE (value), 0);
1083 return INT_RANGE_MAX (value) * INT_RANGE_STEP (value);
1087 * gst_value_get_int_range_step:
1088 * @value: a GValue initialized to GST_TYPE_INT_RANGE
1090 * Gets the step of the range specified by @value.
1092 * Returns: the step of the range
1095 gst_value_get_int_range_step (const GValue * value)
1097 g_return_val_if_fail (GST_VALUE_HOLDS_INT_RANGE (value), 0);
1099 return INT_RANGE_STEP (value);
1103 gst_value_transform_int_range_string (const GValue * src_value,
1104 GValue * dest_value)
1106 if (INT_RANGE_STEP (src_value) == 1)
1107 dest_value->data[0].v_pointer = g_strdup_printf ("[%d,%d]",
1108 INT_RANGE_MIN (src_value), INT_RANGE_MAX (src_value));
1110 dest_value->data[0].v_pointer = g_strdup_printf ("[%d,%d,%d]",
1111 INT_RANGE_MIN (src_value) * INT_RANGE_STEP (src_value),
1112 INT_RANGE_MAX (src_value) * INT_RANGE_STEP (src_value),
1113 INT_RANGE_STEP (src_value));
1117 gst_value_compare_int_range (const GValue * value1, const GValue * value2)
1119 /* calculate the number of values in each range */
1120 gint n1 = INT_RANGE_MAX (value1) - INT_RANGE_MIN (value1) + 1;
1121 gint n2 = INT_RANGE_MAX (value2) - INT_RANGE_MIN (value2) + 1;
1123 /* they must be equal */
1125 return GST_VALUE_UNORDERED;
1127 /* if empty, equal */
1129 return GST_VALUE_EQUAL;
1131 /* if more than one value, then it is only equal if the step is equal
1132 and bounds lie on the same value */
1134 if (INT_RANGE_STEP (value1) == INT_RANGE_STEP (value2) &&
1135 INT_RANGE_MIN (value1) == INT_RANGE_MIN (value2) &&
1136 INT_RANGE_MAX (value1) == INT_RANGE_MAX (value2)) {
1137 return GST_VALUE_EQUAL;
1139 return GST_VALUE_UNORDERED;
1141 /* if just one, only if the value is equal */
1142 if (INT_RANGE_MIN (value1) == INT_RANGE_MIN (value2))
1143 return GST_VALUE_EQUAL;
1144 return GST_VALUE_UNORDERED;
1149 gst_value_serialize_int_range (const GValue * value)
1151 if (INT_RANGE_STEP (value) == 1)
1152 return g_strdup_printf ("[ %d, %d ]", INT_RANGE_MIN (value),
1153 INT_RANGE_MAX (value));
1155 return g_strdup_printf ("[ %d, %d, %d ]",
1156 INT_RANGE_MIN (value) * INT_RANGE_STEP (value),
1157 INT_RANGE_MAX (value) * INT_RANGE_STEP (value), INT_RANGE_STEP (value));
1161 gst_value_deserialize_int_range (GValue * dest, const gchar * s)
1163 g_warning ("unimplemented");
1170 * Values in the range are defined as any value greater or equal
1171 * to min*step, AND lesser or equal to max*step.
1172 * For step == 1, this falls back to the traditional range semantics.
1175 #define INT64_RANGE_MIN(v) (((gint64 *)((v)->data[0].v_pointer))[0])
1176 #define INT64_RANGE_MAX(v) (((gint64 *)((v)->data[0].v_pointer))[1])
1177 #define INT64_RANGE_STEP(v) (((gint64 *)((v)->data[0].v_pointer))[2])
1180 gst_value_init_int64_range (GValue * value)
1182 gint64 *vals = g_slice_alloc0 (3 * sizeof (gint64));
1183 value->data[0].v_pointer = vals;
1184 INT64_RANGE_MIN (value) = 0;
1185 INT64_RANGE_MAX (value) = 0;
1186 INT64_RANGE_STEP (value) = 1;
1190 gst_value_free_int64_range (GValue * value)
1192 g_return_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value));
1193 g_slice_free1 (3 * sizeof (gint64), value->data[0].v_pointer);
1194 value->data[0].v_pointer = NULL;
1198 gst_value_copy_int64_range (const GValue * src_value, GValue * dest_value)
1200 gint64 *vals = (gint64 *) dest_value->data[0].v_pointer;
1201 gint64 *src_vals = (gint64 *) src_value->data[0].v_pointer;
1204 gst_value_init_int64_range (dest_value);
1207 if (src_vals != NULL) {
1208 INT64_RANGE_MIN (dest_value) = INT64_RANGE_MIN (src_value);
1209 INT64_RANGE_MAX (dest_value) = INT64_RANGE_MAX (src_value);
1210 INT64_RANGE_STEP (dest_value) = INT64_RANGE_STEP (src_value);
1215 gst_value_collect_int64_range (GValue * value, guint n_collect_values,
1216 GTypeCValue * collect_values, guint collect_flags)
1218 gint64 *vals = value->data[0].v_pointer;
1220 if (n_collect_values != 2)
1221 return g_strdup_printf ("not enough value locations for `%s' passed",
1222 G_VALUE_TYPE_NAME (value));
1223 if (collect_values[0].v_int64 >= collect_values[1].v_int64)
1224 return g_strdup_printf ("range start is not smaller than end for `%s'",
1225 G_VALUE_TYPE_NAME (value));
1228 gst_value_init_int64_range (value);
1231 gst_value_set_int64_range_step (value, collect_values[0].v_int64,
1232 collect_values[1].v_int64, 1);
1238 gst_value_lcopy_int64_range (const GValue * value, guint n_collect_values,
1239 GTypeCValue * collect_values, guint collect_flags)
1241 guint64 *int_range_start = collect_values[0].v_pointer;
1242 guint64 *int_range_end = collect_values[1].v_pointer;
1243 guint64 *int_range_step = collect_values[2].v_pointer;
1244 gint64 *vals = (gint64 *) value->data[0].v_pointer;
1246 if (!int_range_start)
1247 return g_strdup_printf ("start value location for `%s' passed as NULL",
1248 G_VALUE_TYPE_NAME (value));
1250 return g_strdup_printf ("end value location for `%s' passed as NULL",
1251 G_VALUE_TYPE_NAME (value));
1252 if (!int_range_step)
1253 return g_strdup_printf ("step value location for `%s' passed as NULL",
1254 G_VALUE_TYPE_NAME (value));
1256 if (G_UNLIKELY (vals == NULL)) {
1257 return g_strdup_printf ("Uninitialised `%s' passed",
1258 G_VALUE_TYPE_NAME (value));
1261 *int_range_start = INT64_RANGE_MIN (value);
1262 *int_range_end = INT64_RANGE_MAX (value);
1263 *int_range_step = INT64_RANGE_STEP (value);
1269 * gst_value_set_int64_range_step:
1270 * @value: a GValue initialized to GST_TYPE_INT64_RANGE
1271 * @start: the start of the range
1272 * @end: the end of the range
1273 * @step: the step of the range
1275 * Sets @value to the range specified by @start, @end and @step.
1278 gst_value_set_int64_range_step (GValue * value, gint64 start, gint64 end,
1281 g_return_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value));
1282 g_return_if_fail (start < end);
1283 g_return_if_fail (step > 0);
1284 g_return_if_fail (start % step == 0);
1285 g_return_if_fail (end % step == 0);
1287 INT64_RANGE_MIN (value) = start / step;
1288 INT64_RANGE_MAX (value) = end / step;
1289 INT64_RANGE_STEP (value) = step;
1293 * gst_value_set_int64_range:
1294 * @value: a GValue initialized to GST_TYPE_INT64_RANGE
1295 * @start: the start of the range
1296 * @end: the end of the range
1298 * Sets @value to the range specified by @start and @end.
1301 gst_value_set_int64_range (GValue * value, gint64 start, gint64 end)
1303 gst_value_set_int64_range_step (value, start, end, 1);
1307 * gst_value_get_int64_range_min:
1308 * @value: a GValue initialized to GST_TYPE_INT64_RANGE
1310 * Gets the minimum of the range specified by @value.
1312 * Returns: the minimum of the range
1315 gst_value_get_int64_range_min (const GValue * value)
1317 g_return_val_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value), 0);
1319 return INT64_RANGE_MIN (value) * INT64_RANGE_STEP (value);
1323 * gst_value_get_int64_range_max:
1324 * @value: a GValue initialized to GST_TYPE_INT64_RANGE
1326 * Gets the maximum of the range specified by @value.
1328 * Returns: the maximum of the range
1331 gst_value_get_int64_range_max (const GValue * value)
1333 g_return_val_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value), 0);
1335 return INT64_RANGE_MAX (value) * INT64_RANGE_STEP (value);
1339 * gst_value_get_int64_range_step:
1340 * @value: a GValue initialized to GST_TYPE_INT64_RANGE
1342 * Gets the step of the range specified by @value.
1344 * Returns: the step of the range
1347 gst_value_get_int64_range_step (const GValue * value)
1349 g_return_val_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value), 0);
1351 return INT64_RANGE_STEP (value);
1355 gst_value_transform_int64_range_string (const GValue * src_value,
1356 GValue * dest_value)
1358 if (INT64_RANGE_STEP (src_value) == 1)
1359 dest_value->data[0].v_pointer =
1360 g_strdup_printf ("(gint64)[%" G_GINT64_FORMAT ",%" G_GINT64_FORMAT "]",
1361 INT64_RANGE_MIN (src_value), INT64_RANGE_MAX (src_value));
1363 dest_value->data[0].v_pointer =
1364 g_strdup_printf ("(gint64)[%" G_GINT64_FORMAT ",%" G_GINT64_FORMAT
1365 ",%" G_GINT64_FORMAT "]",
1366 INT64_RANGE_MIN (src_value) * INT64_RANGE_STEP (src_value),
1367 INT64_RANGE_MAX (src_value) * INT64_RANGE_STEP (src_value),
1368 INT64_RANGE_STEP (src_value));
1372 gst_value_compare_int64_range (const GValue * value1, const GValue * value2)
1374 /* calculate the number of values in each range */
1375 gint64 n1 = INT64_RANGE_MAX (value1) - INT64_RANGE_MIN (value1) + 1;
1376 gint64 n2 = INT64_RANGE_MAX (value2) - INT64_RANGE_MIN (value2) + 1;
1378 /* they must be equal */
1380 return GST_VALUE_UNORDERED;
1382 /* if empty, equal */
1384 return GST_VALUE_EQUAL;
1386 /* if more than one value, then it is only equal if the step is equal
1387 and bounds lie on the same value */
1389 if (INT64_RANGE_STEP (value1) == INT64_RANGE_STEP (value2) &&
1390 INT64_RANGE_MIN (value1) == INT64_RANGE_MIN (value2) &&
1391 INT64_RANGE_MAX (value1) == INT64_RANGE_MAX (value2)) {
1392 return GST_VALUE_EQUAL;
1394 return GST_VALUE_UNORDERED;
1396 /* if just one, only if the value is equal */
1397 if (INT64_RANGE_MIN (value1) == INT64_RANGE_MIN (value2))
1398 return GST_VALUE_EQUAL;
1399 return GST_VALUE_UNORDERED;
1404 gst_value_serialize_int64_range (const GValue * value)
1406 if (INT64_RANGE_STEP (value) == 1)
1407 return g_strdup_printf ("[ %" G_GINT64_FORMAT ", %" G_GINT64_FORMAT " ]",
1408 INT64_RANGE_MIN (value), INT64_RANGE_MAX (value));
1410 return g_strdup_printf ("[ %" G_GINT64_FORMAT ", %" G_GINT64_FORMAT ", %"
1411 G_GINT64_FORMAT " ]",
1412 INT64_RANGE_MIN (value) * INT64_RANGE_STEP (value),
1413 INT64_RANGE_MAX (value) * INT64_RANGE_STEP (value),
1414 INT64_RANGE_STEP (value));
1418 gst_value_deserialize_int64_range (GValue * dest, const gchar * s)
1420 g_warning ("unimplemented");
1429 gst_value_init_double_range (GValue * value)
1431 value->data[0].v_double = 0;
1432 value->data[1].v_double = 0;
1436 gst_value_copy_double_range (const GValue * src_value, GValue * dest_value)
1438 dest_value->data[0].v_double = src_value->data[0].v_double;
1439 dest_value->data[1].v_double = src_value->data[1].v_double;
1443 gst_value_collect_double_range (GValue * value, guint n_collect_values,
1444 GTypeCValue * collect_values, guint collect_flags)
1446 if (n_collect_values != 2)
1447 return g_strdup_printf ("not enough value locations for `%s' passed",
1448 G_VALUE_TYPE_NAME (value));
1449 if (collect_values[0].v_double >= collect_values[1].v_double)
1450 return g_strdup_printf ("range start is not smaller than end for `%s'",
1451 G_VALUE_TYPE_NAME (value));
1453 value->data[0].v_double = collect_values[0].v_double;
1454 value->data[1].v_double = collect_values[1].v_double;
1460 gst_value_lcopy_double_range (const GValue * value, guint n_collect_values,
1461 GTypeCValue * collect_values, guint collect_flags)
1463 gdouble *double_range_start = collect_values[0].v_pointer;
1464 gdouble *double_range_end = collect_values[1].v_pointer;
1466 if (!double_range_start)
1467 return g_strdup_printf ("start value location for `%s' passed as NULL",
1468 G_VALUE_TYPE_NAME (value));
1469 if (!double_range_end)
1470 return g_strdup_printf ("end value location for `%s' passed as NULL",
1471 G_VALUE_TYPE_NAME (value));
1473 *double_range_start = value->data[0].v_double;
1474 *double_range_end = value->data[1].v_double;
1480 * gst_value_set_double_range:
1481 * @value: a GValue initialized to GST_TYPE_DOUBLE_RANGE
1482 * @start: the start of the range
1483 * @end: the end of the range
1485 * Sets @value to the range specified by @start and @end.
1488 gst_value_set_double_range (GValue * value, gdouble start, gdouble end)
1490 g_return_if_fail (GST_VALUE_HOLDS_DOUBLE_RANGE (value));
1491 g_return_if_fail (start < end);
1493 value->data[0].v_double = start;
1494 value->data[1].v_double = end;
1498 * gst_value_get_double_range_min:
1499 * @value: a GValue initialized to GST_TYPE_DOUBLE_RANGE
1501 * Gets the minimum of the range specified by @value.
1503 * Returns: the minimum of the range
1506 gst_value_get_double_range_min (const GValue * value)
1508 g_return_val_if_fail (GST_VALUE_HOLDS_DOUBLE_RANGE (value), 0);
1510 return value->data[0].v_double;
1514 * gst_value_get_double_range_max:
1515 * @value: a GValue initialized to GST_TYPE_DOUBLE_RANGE
1517 * Gets the maximum of the range specified by @value.
1519 * Returns: the maximum of the range
1522 gst_value_get_double_range_max (const GValue * value)
1524 g_return_val_if_fail (GST_VALUE_HOLDS_DOUBLE_RANGE (value), 0);
1526 return value->data[1].v_double;
1530 gst_value_transform_double_range_string (const GValue * src_value,
1531 GValue * dest_value)
1533 gchar s1[G_ASCII_DTOSTR_BUF_SIZE], s2[G_ASCII_DTOSTR_BUF_SIZE];
1535 dest_value->data[0].v_pointer = g_strdup_printf ("[%s,%s]",
1536 g_ascii_dtostr (s1, G_ASCII_DTOSTR_BUF_SIZE,
1537 src_value->data[0].v_double),
1538 g_ascii_dtostr (s2, G_ASCII_DTOSTR_BUF_SIZE,
1539 src_value->data[1].v_double));
1543 gst_value_compare_double_range (const GValue * value1, const GValue * value2)
1545 if (value2->data[0].v_double == value1->data[0].v_double &&
1546 value2->data[1].v_double == value1->data[1].v_double)
1547 return GST_VALUE_EQUAL;
1548 return GST_VALUE_UNORDERED;
1552 gst_value_serialize_double_range (const GValue * value)
1554 gchar d1[G_ASCII_DTOSTR_BUF_SIZE];
1555 gchar d2[G_ASCII_DTOSTR_BUF_SIZE];
1557 g_ascii_dtostr (d1, G_ASCII_DTOSTR_BUF_SIZE, value->data[0].v_double);
1558 g_ascii_dtostr (d2, G_ASCII_DTOSTR_BUF_SIZE, value->data[1].v_double);
1559 return g_strdup_printf ("[ %s, %s ]", d1, d2);
1563 gst_value_deserialize_double_range (GValue * dest, const gchar * s)
1565 g_warning ("unimplemented");
1574 gst_value_init_fraction_range (GValue * value)
1579 ftype = GST_TYPE_FRACTION;
1581 value->data[0].v_pointer = vals = g_slice_alloc0 (2 * sizeof (GValue));
1582 g_value_init (&vals[0], ftype);
1583 g_value_init (&vals[1], ftype);
1587 gst_value_free_fraction_range (GValue * value)
1589 GValue *vals = (GValue *) value->data[0].v_pointer;
1592 /* we know the two values contain fractions without internal allocs */
1593 /* g_value_unset (&vals[0]); */
1594 /* g_value_unset (&vals[1]); */
1595 g_slice_free1 (2 * sizeof (GValue), vals);
1596 value->data[0].v_pointer = NULL;
1601 gst_value_copy_fraction_range (const GValue * src_value, GValue * dest_value)
1603 GValue *vals = (GValue *) dest_value->data[0].v_pointer;
1604 GValue *src_vals = (GValue *) src_value->data[0].v_pointer;
1607 gst_value_init_fraction_range (dest_value);
1608 vals = dest_value->data[0].v_pointer;
1610 if (src_vals != NULL) {
1611 g_value_copy (&src_vals[0], &vals[0]);
1612 g_value_copy (&src_vals[1], &vals[1]);
1617 gst_value_collect_fraction_range (GValue * value, guint n_collect_values,
1618 GTypeCValue * collect_values, guint collect_flags)
1620 GValue *vals = (GValue *) value->data[0].v_pointer;
1622 if (n_collect_values != 4)
1623 return g_strdup_printf ("not enough value locations for `%s' passed",
1624 G_VALUE_TYPE_NAME (value));
1625 if (collect_values[1].v_int == 0)
1626 return g_strdup_printf ("passed '0' as first denominator for `%s'",
1627 G_VALUE_TYPE_NAME (value));
1628 if (collect_values[3].v_int == 0)
1629 return g_strdup_printf ("passed '0' as second denominator for `%s'",
1630 G_VALUE_TYPE_NAME (value));
1631 if (gst_util_fraction_compare (collect_values[0].v_int,
1632 collect_values[1].v_int, collect_values[2].v_int,
1633 collect_values[3].v_int) >= 0)
1634 return g_strdup_printf ("range start is not smaller than end for `%s'",
1635 G_VALUE_TYPE_NAME (value));
1638 gst_value_init_fraction_range (value);
1639 vals = value->data[0].v_pointer;
1642 gst_value_set_fraction (&vals[0], collect_values[0].v_int,
1643 collect_values[1].v_int);
1644 gst_value_set_fraction (&vals[1], collect_values[2].v_int,
1645 collect_values[3].v_int);
1651 gst_value_lcopy_fraction_range (const GValue * value, guint n_collect_values,
1652 GTypeCValue * collect_values, guint collect_flags)
1655 gint *dest_values[4];
1656 GValue *vals = (GValue *) value->data[0].v_pointer;
1658 if (G_UNLIKELY (n_collect_values != 4))
1659 return g_strdup_printf ("not enough value locations for `%s' passed",
1660 G_VALUE_TYPE_NAME (value));
1662 for (i = 0; i < 4; i++) {
1663 if (G_UNLIKELY (collect_values[i].v_pointer == NULL)) {
1664 return g_strdup_printf ("value location for `%s' passed as NULL",
1665 G_VALUE_TYPE_NAME (value));
1667 dest_values[i] = collect_values[i].v_pointer;
1670 if (G_UNLIKELY (vals == NULL)) {
1671 return g_strdup_printf ("Uninitialised `%s' passed",
1672 G_VALUE_TYPE_NAME (value));
1675 dest_values[0][0] = gst_value_get_fraction_numerator (&vals[0]);
1676 dest_values[1][0] = gst_value_get_fraction_denominator (&vals[0]);
1677 dest_values[2][0] = gst_value_get_fraction_numerator (&vals[1]);
1678 dest_values[3][0] = gst_value_get_fraction_denominator (&vals[1]);
1683 * gst_value_set_fraction_range:
1684 * @value: a GValue initialized to GST_TYPE_FRACTION_RANGE
1685 * @start: the start of the range (a GST_TYPE_FRACTION GValue)
1686 * @end: the end of the range (a GST_TYPE_FRACTION GValue)
1688 * Sets @value to the range specified by @start and @end.
1691 gst_value_set_fraction_range (GValue * value, const GValue * start,
1696 g_return_if_fail (GST_VALUE_HOLDS_FRACTION_RANGE (value));
1697 g_return_if_fail (GST_VALUE_HOLDS_FRACTION (start));
1698 g_return_if_fail (GST_VALUE_HOLDS_FRACTION (end));
1699 g_return_if_fail (gst_util_fraction_compare (start->data[0].v_int,
1700 start->data[1].v_int, end->data[0].v_int, end->data[1].v_int) < 0);
1702 vals = (GValue *) value->data[0].v_pointer;
1704 gst_value_init_fraction_range (value);
1705 vals = value->data[0].v_pointer;
1707 g_value_copy (start, &vals[0]);
1708 g_value_copy (end, &vals[1]);
1712 * gst_value_set_fraction_range_full:
1713 * @value: a GValue initialized to GST_TYPE_FRACTION_RANGE
1714 * @numerator_start: the numerator start of the range
1715 * @denominator_start: the denominator start of the range
1716 * @numerator_end: the numerator end of the range
1717 * @denominator_end: the denominator end of the range
1719 * Sets @value to the range specified by @numerator_start/@denominator_start
1720 * and @numerator_end/@denominator_end.
1723 gst_value_set_fraction_range_full (GValue * value,
1724 gint numerator_start, gint denominator_start,
1725 gint numerator_end, gint denominator_end)
1727 GValue start = { 0 };
1730 g_return_if_fail (value != NULL);
1731 g_return_if_fail (denominator_start != 0);
1732 g_return_if_fail (denominator_end != 0);
1733 g_return_if_fail (gst_util_fraction_compare (numerator_start,
1734 denominator_start, numerator_end, denominator_end) < 0);
1736 g_value_init (&start, GST_TYPE_FRACTION);
1737 g_value_init (&end, GST_TYPE_FRACTION);
1739 gst_value_set_fraction (&start, numerator_start, denominator_start);
1740 gst_value_set_fraction (&end, numerator_end, denominator_end);
1741 gst_value_set_fraction_range (value, &start, &end);
1743 /* we know the two values contain fractions without internal allocs */
1744 /* g_value_unset (&start); */
1745 /* g_value_unset (&end); */
1748 /* FIXME 2.0: Don't leak the internal representation of fraction
1749 * ranges but instead return the numerator and denominator
1751 * This would allow to store fraction ranges as
1752 * data[0] = (min_n << 32) | (min_d)
1753 * data[1] = (max_n << 32) | (max_d)
1754 * without requiring an additional allocation for each value.
1758 * gst_value_get_fraction_range_min:
1759 * @value: a GValue initialized to GST_TYPE_FRACTION_RANGE
1761 * Gets the minimum of the range specified by @value.
1763 * Returns: the minimum of the range
1766 gst_value_get_fraction_range_min (const GValue * value)
1770 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION_RANGE (value), NULL);
1772 vals = (GValue *) value->data[0].v_pointer;
1781 * gst_value_get_fraction_range_max:
1782 * @value: a GValue initialized to GST_TYPE_FRACTION_RANGE
1784 * Gets the maximum of the range specified by @value.
1786 * Returns: the maximum of the range
1789 gst_value_get_fraction_range_max (const GValue * value)
1793 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION_RANGE (value), NULL);
1795 vals = (GValue *) value->data[0].v_pointer;
1804 gst_value_serialize_fraction_range (const GValue * value)
1806 GValue *vals = (GValue *) value->data[0].v_pointer;
1810 retval = g_strdup ("[ 0/1, 0/1 ]");
1814 start = gst_value_serialize_fraction (&vals[0]);
1815 end = gst_value_serialize_fraction (&vals[1]);
1817 retval = g_strdup_printf ("[ %s, %s ]", start, end);
1826 gst_value_transform_fraction_range_string (const GValue * src_value,
1827 GValue * dest_value)
1829 dest_value->data[0].v_pointer =
1830 gst_value_serialize_fraction_range (src_value);
1834 gst_value_compare_fraction_range (const GValue * value1, const GValue * value2)
1836 GValue *vals1, *vals2;
1837 GstValueCompareFunc compare;
1839 if (value2->data[0].v_pointer == value1->data[0].v_pointer)
1840 return GST_VALUE_EQUAL; /* Only possible if both are NULL */
1842 if (value2->data[0].v_pointer == NULL || value1->data[0].v_pointer == NULL)
1843 return GST_VALUE_UNORDERED;
1845 vals1 = (GValue *) value1->data[0].v_pointer;
1846 vals2 = (GValue *) value2->data[0].v_pointer;
1847 if ((compare = gst_value_get_compare_func (&vals1[0]))) {
1848 if (gst_value_compare_with_func (&vals1[0], &vals2[0], compare) ==
1850 gst_value_compare_with_func (&vals1[1], &vals2[1], compare) ==
1852 return GST_VALUE_EQUAL;
1854 return GST_VALUE_UNORDERED;
1858 gst_value_deserialize_fraction_range (GValue * dest, const gchar * s)
1860 g_warning ("unimplemented");
1869 * gst_value_set_caps:
1870 * @value: a GValue initialized to GST_TYPE_CAPS
1871 * @caps: (transfer none): the caps to set the value to
1873 * Sets the contents of @value to @caps. A reference to the
1874 * provided @caps will be taken by the @value.
1877 gst_value_set_caps (GValue * value, const GstCaps * caps)
1879 g_return_if_fail (G_IS_VALUE (value));
1880 g_return_if_fail (G_VALUE_TYPE (value) == GST_TYPE_CAPS);
1881 g_return_if_fail (caps == NULL || GST_IS_CAPS (caps));
1883 g_value_set_boxed (value, caps);
1887 * gst_value_get_caps:
1888 * @value: a GValue initialized to GST_TYPE_CAPS
1890 * Gets the contents of @value. The reference count of the returned
1891 * #GstCaps will not be modified, therefore the caller must take one
1892 * before getting rid of the @value.
1894 * Returns: (transfer none): the contents of @value
1897 gst_value_get_caps (const GValue * value)
1899 g_return_val_if_fail (G_IS_VALUE (value), NULL);
1900 g_return_val_if_fail (G_VALUE_TYPE (value) == GST_TYPE_CAPS, NULL);
1902 return (GstCaps *) g_value_get_boxed (value);
1906 gst_value_compare_caps (const GValue * value1, const GValue * value2)
1908 GstCaps *caps1 = GST_CAPS (gst_value_get_caps (value1));
1909 GstCaps *caps2 = GST_CAPS (gst_value_get_caps (value2));
1911 if (gst_caps_is_equal (caps1, caps2))
1912 return GST_VALUE_EQUAL;
1913 return GST_VALUE_UNORDERED;
1917 gst_value_serialize_caps (const GValue * value)
1919 GstCaps *caps = g_value_get_boxed (value);
1920 return gst_string_take_and_wrap (gst_caps_to_string (caps));
1924 gst_value_deserialize_caps (GValue * dest, const gchar * s)
1929 caps = gst_caps_from_string (s);
1931 gchar *str = gst_string_unwrap (s);
1933 if (G_UNLIKELY (!str))
1936 caps = gst_caps_from_string (str);
1941 g_value_take_boxed (dest, caps);
1952 gst_value_serialize_segment_internal (const GValue * value, gboolean escape)
1954 GstSegment *seg = g_value_get_boxed (value);
1958 s = gst_structure_new ("GstSegment",
1959 "flags", GST_TYPE_SEGMENT_FLAGS, seg->flags,
1960 "rate", G_TYPE_DOUBLE, seg->rate,
1961 "applied-rate", G_TYPE_DOUBLE, seg->applied_rate,
1962 "format", GST_TYPE_FORMAT, seg->format,
1963 "base", G_TYPE_UINT64, seg->base,
1964 "offset", G_TYPE_UINT64, seg->offset,
1965 "start", G_TYPE_UINT64, seg->start,
1966 "stop", G_TYPE_UINT64, seg->stop,
1967 "time", G_TYPE_UINT64, seg->time,
1968 "position", G_TYPE_UINT64, seg->position,
1969 "duration", G_TYPE_UINT64, seg->duration, NULL);
1970 t = gst_structure_to_string (s);
1972 res = g_strdup_printf ("\"%s\"", t);
1977 gst_structure_free (s);
1983 gst_value_serialize_segment (const GValue * value)
1985 return gst_value_serialize_segment_internal (value, TRUE);
1989 gst_value_deserialize_segment (GValue * dest, const gchar * s)
1995 str = gst_structure_from_string (s, NULL);
1999 res = gst_structure_get (str,
2000 "flags", GST_TYPE_SEGMENT_FLAGS, &seg.flags,
2001 "rate", G_TYPE_DOUBLE, &seg.rate,
2002 "applied-rate", G_TYPE_DOUBLE, &seg.applied_rate,
2003 "format", GST_TYPE_FORMAT, &seg.format,
2004 "base", G_TYPE_UINT64, &seg.base,
2005 "offset", G_TYPE_UINT64, &seg.offset,
2006 "start", G_TYPE_UINT64, &seg.start,
2007 "stop", G_TYPE_UINT64, &seg.stop,
2008 "time", G_TYPE_UINT64, &seg.time,
2009 "position", G_TYPE_UINT64, &seg.position,
2010 "duration", G_TYPE_UINT64, &seg.duration, NULL);
2011 gst_structure_free (str);
2014 g_value_set_boxed (dest, &seg);
2024 * gst_value_set_structure:
2025 * @value: a GValue initialized to GST_TYPE_STRUCTURE
2026 * @structure: the structure to set the value to
2028 * Sets the contents of @value to @structure. The actual
2031 gst_value_set_structure (GValue * value, const GstStructure * structure)
2033 g_return_if_fail (G_IS_VALUE (value));
2034 g_return_if_fail (G_VALUE_TYPE (value) == GST_TYPE_STRUCTURE);
2035 g_return_if_fail (structure == NULL || GST_IS_STRUCTURE (structure));
2037 g_value_set_boxed (value, structure);
2041 * gst_value_get_structure:
2042 * @value: a GValue initialized to GST_TYPE_STRUCTURE
2044 * Gets the contents of @value.
2046 * Returns: (transfer none): the contents of @value
2048 const GstStructure *
2049 gst_value_get_structure (const GValue * value)
2051 g_return_val_if_fail (G_IS_VALUE (value), NULL);
2052 g_return_val_if_fail (G_VALUE_TYPE (value) == GST_TYPE_STRUCTURE, NULL);
2054 return (GstStructure *) g_value_get_boxed (value);
2058 gst_value_serialize_structure (const GValue * value)
2060 GstStructure *structure = g_value_get_boxed (value);
2062 return gst_string_take_and_wrap (gst_structure_to_string (structure));
2066 gst_value_deserialize_structure (GValue * dest, const gchar * s)
2068 GstStructure *structure;
2071 structure = gst_structure_from_string (s, NULL);
2073 gchar *str = gst_string_unwrap (s);
2075 if (G_UNLIKELY (!str))
2078 structure = gst_structure_from_string (str, NULL);
2082 if (G_LIKELY (structure)) {
2083 g_value_take_boxed (dest, structure);
2089 /*******************
2091 *******************/
2094 * gst_value_set_caps_features:
2095 * @value: a GValue initialized to GST_TYPE_CAPS_FEATURES
2096 * @features: the features to set the value to
2098 * Sets the contents of @value to @features.
2101 gst_value_set_caps_features (GValue * value, const GstCapsFeatures * features)
2103 g_return_if_fail (G_IS_VALUE (value));
2104 g_return_if_fail (G_VALUE_TYPE (value) == GST_TYPE_CAPS_FEATURES);
2105 g_return_if_fail (features == NULL || GST_IS_CAPS_FEATURES (features));
2107 g_value_set_boxed (value, features);
2111 * gst_value_get_caps_features:
2112 * @value: a GValue initialized to GST_TYPE_CAPS_FEATURES
2114 * Gets the contents of @value.
2116 * Returns: (transfer none): the contents of @value
2118 const GstCapsFeatures *
2119 gst_value_get_caps_features (const GValue * value)
2121 g_return_val_if_fail (G_IS_VALUE (value), NULL);
2122 g_return_val_if_fail (G_VALUE_TYPE (value) == GST_TYPE_CAPS_FEATURES, NULL);
2124 return (GstCapsFeatures *) g_value_get_boxed (value);
2128 gst_value_serialize_caps_features (const GValue * value)
2130 GstCapsFeatures *features = g_value_get_boxed (value);
2132 return gst_string_take_and_wrap (gst_caps_features_to_string (features));
2136 gst_value_deserialize_caps_features (GValue * dest, const gchar * s)
2138 GstCapsFeatures *features;
2141 features = gst_caps_features_from_string (s);
2143 gchar *str = gst_string_unwrap (s);
2145 if (G_UNLIKELY (!str))
2148 features = gst_caps_features_from_string (str);
2152 if (G_LIKELY (features)) {
2153 g_value_take_boxed (dest, features);
2164 gst_value_deserialize_tag_list (GValue * dest, const gchar * s)
2166 GstTagList *taglist;
2169 taglist = gst_tag_list_new_from_string (s);
2171 gchar *str = gst_string_unwrap (s);
2173 if (G_UNLIKELY (!str))
2176 taglist = gst_tag_list_new_from_string (str);
2180 if (G_LIKELY (taglist != NULL)) {
2181 g_value_take_boxed (dest, taglist);
2188 gst_value_serialize_tag_list (const GValue * value)
2190 GstTagList *taglist = g_value_get_boxed (value);
2192 return gst_string_take_and_wrap (gst_tag_list_to_string (taglist));
2201 compare_buffer (GstBuffer * buf1, GstBuffer * buf2)
2204 GstMapInfo info1, info2;
2208 return GST_VALUE_EQUAL;
2210 size1 = gst_buffer_get_size (buf1);
2211 size2 = gst_buffer_get_size (buf2);
2214 return GST_VALUE_UNORDERED;
2217 return GST_VALUE_EQUAL;
2219 if (!gst_buffer_map (buf1, &info1, GST_MAP_READ))
2220 return GST_VALUE_UNORDERED;
2222 if (!gst_buffer_map (buf2, &info2, GST_MAP_READ)) {
2223 gst_buffer_unmap (buf1, &info1);
2224 return GST_VALUE_UNORDERED;
2227 mret = memcmp (info1.data, info2.data, info1.size);
2229 result = GST_VALUE_EQUAL;
2231 result = GST_VALUE_LESS_THAN;
2233 result = GST_VALUE_GREATER_THAN;
2235 gst_buffer_unmap (buf1, &info1);
2236 gst_buffer_unmap (buf2, &info2);
2242 gst_value_compare_buffer (const GValue * value1, const GValue * value2)
2244 GstBuffer *buf1 = gst_value_get_buffer (value1);
2245 GstBuffer *buf2 = gst_value_get_buffer (value2);
2247 return compare_buffer (buf1, buf2);
2251 gst_value_serialize_buffer (const GValue * value)
2259 buffer = gst_value_get_buffer (value);
2263 if (!gst_buffer_map (buffer, &info, GST_MAP_READ))
2268 string = g_malloc (info.size * 2 + 1);
2269 for (i = 0; i < info.size; i++) {
2270 sprintf (string + i * 2, "%02x", data[i]);
2272 string[info.size * 2] = 0;
2274 gst_buffer_unmap (buffer, &info);
2280 gst_value_deserialize_buffer (GValue * dest, const gchar * s)
2293 buffer = gst_buffer_new_allocate (NULL, len / 2, NULL);
2294 if (!gst_buffer_map (buffer, &info, GST_MAP_WRITE))
2298 for (i = 0; i < len / 2; i++) {
2299 if (!isxdigit ((int) s[i * 2]) || !isxdigit ((int) s[i * 2 + 1]))
2302 ts[0] = s[i * 2 + 0];
2303 ts[1] = s[i * 2 + 1];
2306 data[i] = (guint8) strtoul (ts, NULL, 16);
2308 gst_buffer_unmap (buffer, &info);
2310 gst_value_take_buffer (dest, buffer);
2325 gst_buffer_unref (buffer);
2326 gst_buffer_unmap (buffer, &info);
2335 /* This function is mostly used for comparing image/buffer tags in taglists */
2337 gst_value_compare_sample (const GValue * value1, const GValue * value2)
2339 GstBuffer *buf1 = gst_sample_get_buffer (gst_value_get_sample (value1));
2340 GstBuffer *buf2 = gst_sample_get_buffer (gst_value_get_sample (value2));
2342 /* FIXME: should we take into account anything else such as caps? */
2343 return compare_buffer (buf1, buf2);
2347 gst_value_serialize_sample (const GValue * value)
2349 const GstStructure *info_structure;
2350 GstSegment *segment;
2354 GValue val = { 0, };
2355 gchar *info_str, *caps_str, *tmp;
2356 gchar *buf_str, *seg_str, *s;
2358 sample = g_value_get_boxed (value);
2360 buffer = gst_sample_get_buffer (sample);
2362 g_value_init (&val, GST_TYPE_BUFFER);
2363 g_value_set_boxed (&val, buffer);
2364 buf_str = gst_value_serialize_buffer (&val);
2365 g_value_unset (&val);
2367 buf_str = g_strdup ("None");
2370 caps = gst_sample_get_caps (sample);
2372 tmp = gst_caps_to_string (caps);
2373 caps_str = g_base64_encode ((guchar *) tmp, strlen (tmp) + 1);
2374 g_strdelimit (caps_str, "=", '_');
2377 caps_str = g_strdup ("None");
2380 segment = gst_sample_get_segment (sample);
2382 g_value_init (&val, GST_TYPE_SEGMENT);
2383 g_value_set_boxed (&val, segment);
2384 tmp = gst_value_serialize_segment_internal (&val, FALSE);
2385 seg_str = g_base64_encode ((guchar *) tmp, strlen (tmp) + 1);
2386 g_strdelimit (seg_str, "=", '_');
2388 g_value_unset (&val);
2390 seg_str = g_strdup ("None");
2393 info_structure = gst_sample_get_info (sample);
2394 if (info_structure) {
2395 tmp = gst_structure_to_string (info_structure);
2396 info_str = g_base64_encode ((guchar *) tmp, strlen (tmp) + 1);
2397 g_strdelimit (info_str, "=", '_');
2400 info_str = g_strdup ("None");
2403 s = g_strconcat (buf_str, ":", caps_str, ":", seg_str, ":", info_str, NULL);
2413 gst_value_deserialize_sample (GValue * dest, const gchar * s)
2415 GValue bval = G_VALUE_INIT, sval = G_VALUE_INIT;
2419 gboolean ret = FALSE;
2424 GST_TRACE ("deserialize '%s'", s);
2426 fields = g_strsplit (s, ":", -1);
2427 len = g_strv_length (fields);
2431 g_value_init (&bval, GST_TYPE_BUFFER);
2432 g_value_init (&sval, GST_TYPE_SEGMENT);
2434 if (!gst_value_deserialize_buffer (&bval, fields[0]))
2437 if (strcmp (fields[1], "None") != 0) {
2438 g_strdelimit (fields[1], "_", '=');
2439 g_base64_decode_inplace (fields[1], &outlen);
2440 GST_TRACE ("caps : %s", fields[1]);
2441 caps = gst_caps_from_string (fields[1]);
2448 if (strcmp (fields[2], "None") != 0) {
2449 g_strdelimit (fields[2], "_", '=');
2450 g_base64_decode_inplace (fields[2], &outlen);
2451 GST_TRACE ("segment : %s", fields[2]);
2452 if (!gst_value_deserialize_segment (&sval, fields[2]))
2456 if (strcmp (fields[3], "None") != 0) {
2457 g_strdelimit (fields[3], "_", '=');
2458 g_base64_decode_inplace (fields[3], &outlen);
2459 GST_TRACE ("info : %s", fields[3]);
2460 info = gst_structure_from_string (fields[3], NULL);
2467 sample = gst_sample_new (gst_value_get_buffer (&bval), caps,
2468 g_value_get_boxed (&sval), info);
2470 g_value_take_boxed (dest, sample);
2473 gst_caps_unref (caps);
2479 g_value_unset (&bval);
2480 g_value_unset (&sval);
2484 g_strfreev (fields);
2494 gst_value_compare_boolean (const GValue * value1, const GValue * value2)
2496 if ((value1->data[0].v_int != 0) == (value2->data[0].v_int != 0))
2497 return GST_VALUE_EQUAL;
2498 return GST_VALUE_UNORDERED;
2502 gst_value_serialize_boolean (const GValue * value)
2504 if (value->data[0].v_int) {
2505 return g_strdup ("true");
2507 return g_strdup ("false");
2511 gst_value_deserialize_boolean (GValue * dest, const gchar * s)
2513 gboolean ret = FALSE;
2515 if (g_ascii_strcasecmp (s, "true") == 0 ||
2516 g_ascii_strcasecmp (s, "yes") == 0 ||
2517 g_ascii_strcasecmp (s, "t") == 0 || strcmp (s, "1") == 0) {
2518 g_value_set_boolean (dest, TRUE);
2520 } else if (g_ascii_strcasecmp (s, "false") == 0 ||
2521 g_ascii_strcasecmp (s, "no") == 0 ||
2522 g_ascii_strcasecmp (s, "f") == 0 || strcmp (s, "0") == 0) {
2523 g_value_set_boolean (dest, FALSE);
2530 #define CREATE_SERIALIZATION_START(_type,_macro) \
2532 gst_value_compare_ ## _type \
2533 (const GValue * value1, const GValue * value2) \
2535 g ## _type val1 = g_value_get_ ## _type (value1); \
2536 g ## _type val2 = g_value_get_ ## _type (value2); \
2538 return GST_VALUE_GREATER_THAN; \
2540 return GST_VALUE_LESS_THAN; \
2541 return GST_VALUE_EQUAL; \
2545 gst_value_serialize_ ## _type (const GValue * value) \
2547 GValue val = { 0, }; \
2548 g_value_init (&val, G_TYPE_STRING); \
2549 if (!g_value_transform (value, &val)) \
2550 g_assert_not_reached (); \
2551 /* NO_COPY_MADNESS!!! */ \
2552 return (char *) g_value_get_string (&val); \
2555 /* deserialize the given s into to as a gint64.
2556 * check if the result is actually storeable in the given size number of
2560 gst_value_deserialize_int_helper (gint64 * to, const gchar * s,
2561 gint64 min, gint64 max, gint size)
2563 gboolean ret = FALSE;
2568 *to = g_ascii_strtoull (s, &end, 0);
2569 /* a range error is a definitive no-no */
2570 if (errno == ERANGE) {
2577 if (g_ascii_strcasecmp (s, "little_endian") == 0) {
2578 *to = G_LITTLE_ENDIAN;
2580 } else if (g_ascii_strcasecmp (s, "big_endian") == 0) {
2583 } else if (g_ascii_strcasecmp (s, "byte_order") == 0) {
2586 } else if (g_ascii_strcasecmp (s, "min") == 0) {
2589 } else if (g_ascii_strcasecmp (s, "max") == 0) {
2595 /* by definition, a gint64 fits into a gint64; so ignore those */
2596 if (size != sizeof (mask)) {
2598 /* for positive numbers, we create a mask of 1's outside of the range
2599 * and 0's inside the range. An and will thus keep only 1 bits
2600 * outside of the range */
2601 mask <<= (size * 8);
2602 if ((mask & *to) != 0) {
2606 /* for negative numbers, we do a 2's complement version */
2607 mask <<= ((size * 8) - 1);
2608 if ((mask & *to) != mask) {
2617 #define CREATE_SERIALIZATION(_type,_macro) \
2618 CREATE_SERIALIZATION_START(_type,_macro) \
2621 gst_value_deserialize_ ## _type (GValue * dest, const gchar *s) \
2625 if (gst_value_deserialize_int_helper (&x, s, G_MIN ## _macro, \
2626 G_MAX ## _macro, sizeof (g ## _type))) { \
2627 g_value_set_ ## _type (dest, /*(g ## _type)*/ x); \
2634 #define CREATE_USERIALIZATION(_type,_macro) \
2635 CREATE_SERIALIZATION_START(_type,_macro) \
2638 gst_value_deserialize_ ## _type (GValue * dest, const gchar *s) \
2642 gboolean ret = FALSE; \
2645 x = g_ascii_strtoull (s, &end, 0); \
2646 /* a range error is a definitive no-no */ \
2647 if (errno == ERANGE) { \
2650 /* the cast ensures the range check later on makes sense */ \
2651 x = (g ## _type) x; \
2655 if (g_ascii_strcasecmp (s, "little_endian") == 0) { \
2656 x = G_LITTLE_ENDIAN; \
2658 } else if (g_ascii_strcasecmp (s, "big_endian") == 0) { \
2661 } else if (g_ascii_strcasecmp (s, "byte_order") == 0) { \
2664 } else if (g_ascii_strcasecmp (s, "min") == 0) { \
2667 } else if (g_ascii_strcasecmp (s, "max") == 0) { \
2668 x = G_MAX ## _macro; \
2673 if (x > G_MAX ## _macro) { \
2676 g_value_set_ ## _type (dest, x); \
2682 #define REGISTER_SERIALIZATION(_gtype, _type) \
2684 static const GstValueTable gst_value = { \
2686 gst_value_compare_ ## _type, \
2687 gst_value_serialize_ ## _type, \
2688 gst_value_deserialize_ ## _type, \
2691 gst_value_register (&gst_value); \
2694 CREATE_SERIALIZATION (int, INT);
2695 CREATE_SERIALIZATION (int64, INT64);
2696 CREATE_SERIALIZATION (long, LONG);
2698 CREATE_USERIALIZATION (uint, UINT);
2699 CREATE_USERIALIZATION (uint64, UINT64);
2700 CREATE_USERIALIZATION (ulong, ULONG);
2702 /* FIXME 0.11: remove this again, plugins shouldn't have uchar properties */
2704 #define G_MAXUCHAR 255
2706 CREATE_USERIALIZATION (uchar, UCHAR);
2712 gst_value_compare_double (const GValue * value1, const GValue * value2)
2714 if (value1->data[0].v_double > value2->data[0].v_double)
2715 return GST_VALUE_GREATER_THAN;
2716 if (value1->data[0].v_double < value2->data[0].v_double)
2717 return GST_VALUE_LESS_THAN;
2718 if (value1->data[0].v_double == value2->data[0].v_double)
2719 return GST_VALUE_EQUAL;
2720 return GST_VALUE_UNORDERED;
2724 gst_value_serialize_double (const GValue * value)
2726 gchar d[G_ASCII_DTOSTR_BUF_SIZE];
2728 g_ascii_dtostr (d, G_ASCII_DTOSTR_BUF_SIZE, value->data[0].v_double);
2729 return g_strdup (d);
2733 gst_value_deserialize_double (GValue * dest, const gchar * s)
2736 gboolean ret = FALSE;
2739 x = g_ascii_strtod (s, &end);
2743 if (g_ascii_strcasecmp (s, "min") == 0) {
2746 } else if (g_ascii_strcasecmp (s, "max") == 0) {
2752 g_value_set_double (dest, x);
2762 gst_value_compare_float (const GValue * value1, const GValue * value2)
2764 if (value1->data[0].v_float > value2->data[0].v_float)
2765 return GST_VALUE_GREATER_THAN;
2766 if (value1->data[0].v_float < value2->data[0].v_float)
2767 return GST_VALUE_LESS_THAN;
2768 if (value1->data[0].v_float == value2->data[0].v_float)
2769 return GST_VALUE_EQUAL;
2770 return GST_VALUE_UNORDERED;
2774 gst_value_serialize_float (const GValue * value)
2776 gchar d[G_ASCII_DTOSTR_BUF_SIZE];
2778 g_ascii_dtostr (d, G_ASCII_DTOSTR_BUF_SIZE, value->data[0].v_float);
2779 return g_strdup (d);
2783 gst_value_deserialize_float (GValue * dest, const gchar * s)
2786 gboolean ret = FALSE;
2789 x = g_ascii_strtod (s, &end);
2793 if (g_ascii_strcasecmp (s, "min") == 0) {
2796 } else if (g_ascii_strcasecmp (s, "max") == 0) {
2801 if (x > G_MAXFLOAT || x < -G_MAXFLOAT)
2804 g_value_set_float (dest, (float) x);
2814 gst_value_compare_string (const GValue * value1, const GValue * value2)
2816 if (G_UNLIKELY (!value1->data[0].v_pointer || !value2->data[0].v_pointer)) {
2817 /* if only one is NULL, no match - otherwise both NULL == EQUAL */
2818 if (value1->data[0].v_pointer != value2->data[0].v_pointer)
2819 return GST_VALUE_UNORDERED;
2821 gint x = strcmp (value1->data[0].v_pointer, value2->data[0].v_pointer);
2824 return GST_VALUE_LESS_THAN;
2826 return GST_VALUE_GREATER_THAN;
2829 return GST_VALUE_EQUAL;
2833 gst_string_measure_wrapping (const gchar * s)
2836 gboolean wrap = FALSE;
2838 if (G_UNLIKELY (s == NULL))
2841 /* Special case: the actual string NULL needs wrapping */
2842 if (G_UNLIKELY (strcmp (s, "NULL") == 0))
2847 if (GST_ASCII_IS_STRING (*s)) {
2849 } else if (*s < 0x20 || *s >= 0x7f) {
2859 /* Wrap the string if we found something that needs
2860 * wrapping, or the empty string (len == 0) */
2861 return (wrap || len == 0) ? len : -1;
2865 gst_string_wrap_inner (const gchar * s, gint len)
2869 e = d = g_malloc (len + 3);
2873 if (GST_ASCII_IS_STRING (*s)) {
2875 } else if (*s < 0x20 || *s >= 0x7f) {
2877 *e++ = '0' + ((*(guchar *) s) >> 6);
2878 *e++ = '0' + (((*s) >> 3) & 0x7);
2879 *e++ = '0' + ((*s++) & 0x7);
2888 g_assert (e - d <= len + 3);
2892 /* Do string wrapping/escaping */
2894 gst_string_wrap (const gchar * s)
2896 gint len = gst_string_measure_wrapping (s);
2898 if (G_LIKELY (len < 0))
2899 return g_strdup (s);
2901 return gst_string_wrap_inner (s, len);
2904 /* Same as above, but take ownership of the string */
2906 gst_string_take_and_wrap (gchar * s)
2909 gint len = gst_string_measure_wrapping (s);
2911 if (G_LIKELY (len < 0))
2914 out = gst_string_wrap_inner (s, len);
2921 * This function takes a string delimited with double quotes (")
2922 * and unescapes any \xxx octal numbers.
2924 * If sequences of \y are found where y is not in the range of
2925 * 0->3, y is copied unescaped.
2927 * If \xyy is found where x is an octal number but y is not, an
2928 * error is encountered and %NULL is returned.
2930 * the input string must be \0 terminated.
2933 gst_string_unwrap (const gchar * s)
2936 gchar *read, *write;
2938 /* NULL string returns NULL */
2942 /* strings not starting with " are invalid */
2946 /* make copy of original string to hold the result. This
2947 * string will always be smaller than the original */
2952 /* need to move to the next position as we parsed the " */
2956 if (GST_ASCII_IS_STRING (*read)) {
2957 /* normal chars are just copied */
2959 } else if (*read == '"') {
2960 /* quote marks end of string */
2962 } else if (*read == '\\') {
2963 /* got an escape char, move to next position to read a tripplet
2964 * of octal numbers */
2966 /* is the next char a possible first octal number? */
2967 if (*read >= '0' && *read <= '3') {
2968 /* parse other 2 numbers, if one of them is not in the range of
2969 * an octal number, we error. We also catch the case where a zero
2970 * byte is found here. */
2971 if (read[1] < '0' || read[1] > '7' || read[2] < '0' || read[2] > '7')
2974 /* now convert the octal number to a byte again. */
2975 *write++ = ((read[0] - '0') << 6) +
2976 ((read[1] - '0') << 3) + (read[2] - '0');
2980 /* if we run into a \0 here, we definitely won't get a quote later */
2984 /* else copy \X sequence */
2988 /* weird character, error */
2992 /* if the string is not ending in " and zero terminated, we error */
2993 if (*read != '"' || read[1] != '\0')
2996 /* null terminate result string and return */
3006 gst_value_serialize_string (const GValue * value)
3008 return gst_string_wrap (value->data[0].v_pointer);
3012 gst_value_deserialize_string (GValue * dest, const gchar * s)
3014 if (G_UNLIKELY (strcmp (s, "NULL") == 0)) {
3015 g_value_set_string (dest, NULL);
3017 } else if (G_LIKELY (*s != '"')) {
3018 if (!g_utf8_validate (s, -1, NULL))
3020 g_value_set_string (dest, s);
3023 gchar *str = gst_string_unwrap (s);
3024 if (G_UNLIKELY (!str))
3026 g_value_take_string (dest, str);
3037 gst_value_compare_enum (const GValue * value1, const GValue * value2)
3039 GEnumValue *en1, *en2;
3040 GEnumClass *klass1 = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (value1));
3041 GEnumClass *klass2 = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (value2));
3043 g_return_val_if_fail (klass1, GST_VALUE_UNORDERED);
3044 g_return_val_if_fail (klass2, GST_VALUE_UNORDERED);
3045 en1 = g_enum_get_value (klass1, g_value_get_enum (value1));
3046 en2 = g_enum_get_value (klass2, g_value_get_enum (value2));
3047 g_type_class_unref (klass1);
3048 g_type_class_unref (klass2);
3049 g_return_val_if_fail (en1, GST_VALUE_UNORDERED);
3050 g_return_val_if_fail (en2, GST_VALUE_UNORDERED);
3051 if (en1->value < en2->value)
3052 return GST_VALUE_LESS_THAN;
3053 if (en1->value > en2->value)
3054 return GST_VALUE_GREATER_THAN;
3056 return GST_VALUE_EQUAL;
3060 gst_value_serialize_enum (const GValue * value)
3063 GEnumClass *klass = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (value));
3065 g_return_val_if_fail (klass, NULL);
3066 en = g_enum_get_value (klass, g_value_get_enum (value));
3067 g_type_class_unref (klass);
3069 /* might be one of the custom formats registered later */
3070 if (G_UNLIKELY (en == NULL && G_VALUE_TYPE (value) == GST_TYPE_FORMAT)) {
3071 const GstFormatDefinition *format_def;
3073 format_def = gst_format_get_details ((GstFormat) g_value_get_enum (value));
3074 g_return_val_if_fail (format_def != NULL, NULL);
3075 return g_strdup (format_def->description);
3078 g_return_val_if_fail (en, NULL);
3079 return g_strdup (en->value_name);
3083 gst_value_deserialize_enum_iter_cmp (const GValue * format_def_value,
3086 const GstFormatDefinition *format_def =
3087 g_value_get_pointer (format_def_value);
3089 if (g_ascii_strcasecmp (s, format_def->nick) == 0)
3092 return g_ascii_strcasecmp (s, format_def->description);
3096 gst_value_deserialize_enum (GValue * dest, const gchar * s)
3099 gchar *endptr = NULL;
3100 GEnumClass *klass = (GEnumClass *) g_type_class_ref (G_VALUE_TYPE (dest));
3102 g_return_val_if_fail (klass, FALSE);
3103 if (!(en = g_enum_get_value_by_name (klass, s))) {
3104 if (!(en = g_enum_get_value_by_nick (klass, s))) {
3105 gint i = strtol (s, &endptr, 0);
3107 if (endptr && *endptr == '\0') {
3108 en = g_enum_get_value (klass, i);
3112 g_type_class_unref (klass);
3114 /* might be one of the custom formats registered later */
3115 if (G_UNLIKELY (en == NULL && G_VALUE_TYPE (dest) == GST_TYPE_FORMAT)) {
3116 GValue res = { 0, };
3117 const GstFormatDefinition *format_def;
3121 iter = gst_format_iterate_definitions ();
3123 found = gst_iterator_find_custom (iter,
3124 (GCompareFunc) gst_value_deserialize_enum_iter_cmp, &res, (gpointer) s);
3127 format_def = g_value_get_pointer (&res);
3128 g_return_val_if_fail (format_def != NULL, FALSE);
3129 g_value_set_enum (dest, (gint) format_def->value);
3130 g_value_unset (&res);
3132 gst_iterator_free (iter);
3136 /* enum name/nick not found */
3140 g_value_set_enum (dest, en->value);
3148 /* we just compare the value here */
3150 gst_value_compare_flags (const GValue * value1, const GValue * value2)
3153 GFlagsClass *klass1 =
3154 (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (value1));
3155 GFlagsClass *klass2 =
3156 (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (value2));
3158 g_return_val_if_fail (klass1, GST_VALUE_UNORDERED);
3159 g_return_val_if_fail (klass2, GST_VALUE_UNORDERED);
3160 fl1 = g_value_get_flags (value1);
3161 fl2 = g_value_get_flags (value2);
3162 g_type_class_unref (klass1);
3163 g_type_class_unref (klass2);
3165 return GST_VALUE_LESS_THAN;
3167 return GST_VALUE_GREATER_THAN;
3169 return GST_VALUE_EQUAL;
3172 /* the different flags are serialized separated with a + */
3174 gst_value_serialize_flags (const GValue * value)
3178 GFlagsClass *klass = (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (value));
3179 gchar *result, *tmp;
3180 gboolean first = TRUE;
3182 g_return_val_if_fail (klass, NULL);
3184 flags = g_value_get_flags (value);
3186 /* if no flags are set, try to serialize to the _NONE string */
3188 fl = g_flags_get_first_value (klass, flags);
3190 return g_strdup (fl->value_name);
3192 return g_strdup ("0");
3195 /* some flags are set, so serialize one by one */
3196 result = g_strdup ("");
3198 fl = g_flags_get_first_value (klass, flags);
3200 tmp = g_strconcat (result, (first ? "" : "+"), fl->value_name, NULL);
3206 flags &= ~fl->value;
3209 g_type_class_unref (klass);
3215 gst_value_deserialize_flags (GValue * dest, const gchar * s)
3218 gchar *endptr = NULL;
3219 GFlagsClass *klass = (GFlagsClass *) g_type_class_ref (G_VALUE_TYPE (dest));
3224 g_return_val_if_fail (klass, FALSE);
3226 /* split into parts delimited with + */
3227 split = g_strsplit (s, "+", 0);
3231 /* loop over each part */
3233 if (!(fl = g_flags_get_value_by_name (klass, split[i]))) {
3234 if (!(fl = g_flags_get_value_by_nick (klass, split[i]))) {
3235 gint val = strtol (split[i], &endptr, 0);
3237 /* just or numeric value */
3238 if (endptr && *endptr == '\0') {
3249 g_type_class_unref (klass);
3250 g_value_set_flags (dest, flags);
3260 gst_value_is_subset_int_range_int_range (const GValue * value1,
3261 const GValue * value2)
3265 g_return_val_if_fail (GST_VALUE_HOLDS_INT_RANGE (value1), FALSE);
3266 g_return_val_if_fail (GST_VALUE_HOLDS_INT_RANGE (value2), FALSE);
3268 if (INT_RANGE_MIN (value1) * INT_RANGE_STEP (value1) <
3269 INT_RANGE_MIN (value2) * INT_RANGE_STEP (value2))
3271 if (INT_RANGE_MAX (value1) * INT_RANGE_STEP (value1) >
3272 INT_RANGE_MAX (value2) * INT_RANGE_STEP (value2))
3275 if (INT_RANGE_MIN (value2) == INT_RANGE_MAX (value2)) {
3276 if ((INT_RANGE_MIN (value2) * INT_RANGE_STEP (value2)) %
3277 INT_RANGE_STEP (value1))
3283 gst_util_greatest_common_divisor (INT_RANGE_STEP (value1),
3284 INT_RANGE_STEP (value2));
3285 if (gcd != MIN (INT_RANGE_STEP (value1), INT_RANGE_STEP (value2)))
3292 gst_value_is_subset_int64_range_int64_range (const GValue * value1,
3293 const GValue * value2)
3297 g_return_val_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value1), FALSE);
3298 g_return_val_if_fail (GST_VALUE_HOLDS_INT64_RANGE (value2), FALSE);
3300 if (INT64_RANGE_MIN (value1) < INT64_RANGE_MIN (value2))
3302 if (INT64_RANGE_MAX (value1) > INT64_RANGE_MAX (value2))
3305 if (INT64_RANGE_MIN (value2) == INT64_RANGE_MAX (value2)) {
3306 if ((INT64_RANGE_MIN (value2) * INT64_RANGE_STEP (value2)) %
3307 INT64_RANGE_STEP (value1))
3313 gst_util_greatest_common_divisor_int64 (INT64_RANGE_STEP (value1),
3314 INT64_RANGE_STEP (value2));
3315 if (gcd != MIN (INT64_RANGE_STEP (value1), INT64_RANGE_STEP (value2)))
3322 * gst_value_is_subset:
3323 * @value1: a #GValue
3324 * @value2: a #GValue
3326 * Check that @value1 is a subset of @value2.
3328 * Return: %TRUE is @value1 is a subset of @value2
3331 gst_value_is_subset (const GValue * value1, const GValue * value2)
3333 /* special case for int/int64 ranges, since we cannot compute
3334 the difference for those when they have different steps,
3335 and it's actually a lot simpler to compute whether a range
3336 is a subset of another. */
3337 if (GST_VALUE_HOLDS_INT_RANGE (value1) && GST_VALUE_HOLDS_INT_RANGE (value2)) {
3338 return gst_value_is_subset_int_range_int_range (value1, value2);
3339 } else if (GST_VALUE_HOLDS_INT64_RANGE (value1)
3340 && GST_VALUE_HOLDS_INT64_RANGE (value2)) {
3341 return gst_value_is_subset_int64_range_int64_range (value1, value2);
3349 * -> 1 - [1,2] = empty
3353 * -> [1,2] - [1,3] = empty
3357 * -> {1,3} - {1,2} = 3
3360 * First caps subtraction needs to return a non-empty set, second
3361 * subtractions needs to give en empty set.
3362 * Both substractions are switched below, as it's faster that way.
3364 if (!gst_value_subtract (NULL, value1, value2)) {
3365 if (gst_value_subtract (NULL, value2, value1)) {
3377 gst_value_union_int_int_range (GValue * dest, const GValue * src1,
3378 const GValue * src2)
3380 gint v = src1->data[0].v_int;
3382 /* check if it's already in the range */
3383 if (INT_RANGE_MIN (src2) * INT_RANGE_STEP (src2) <= v &&
3384 INT_RANGE_MAX (src2) * INT_RANGE_STEP (src2) >= v &&
3385 v % INT_RANGE_STEP (src2) == 0) {
3387 gst_value_init_and_copy (dest, src2);
3391 /* check if it extends the range */
3392 if (v == (INT_RANGE_MIN (src2) - 1) * INT_RANGE_STEP (src2)) {
3395 (guint) ((INT_RANGE_MIN (src2) - 1) * INT_RANGE_STEP (src2));
3396 guint64 new_max = (guint) (INT_RANGE_MAX (src2) * INT_RANGE_STEP (src2));
3398 gst_value_init_and_copy (dest, src2);
3399 dest->data[0].v_uint64 = (new_min << 32) | (new_max);
3403 if (v == (INT_RANGE_MAX (src2) + 1) * INT_RANGE_STEP (src2)) {
3405 guint64 new_min = (guint) (INT_RANGE_MIN (src2) * INT_RANGE_STEP (src2));
3407 (guint) ((INT_RANGE_MAX (src2) + 1) * INT_RANGE_STEP (src2));
3409 gst_value_init_and_copy (dest, src2);
3410 dest->data[0].v_uint64 = (new_min << 32) | (new_max);
3419 gst_value_union_int_range_int_range (GValue * dest, const GValue * src1,
3420 const GValue * src2)
3422 /* We can union in several special cases:
3423 1 - one is a subset of another
3424 2 - same step and not disjoint
3425 3 - different step, at least one with one value which matches a 'next' or 'previous'
3430 if (gst_value_is_subset_int_range_int_range (src1, src2)) {
3432 gst_value_init_and_copy (dest, src2);
3435 if (gst_value_is_subset_int_range_int_range (src2, src1)) {
3437 gst_value_init_and_copy (dest, src1);
3441 /* 2 - same step and not disjoint */
3442 if (INT_RANGE_STEP (src1) == INT_RANGE_STEP (src2)) {
3443 if ((INT_RANGE_MIN (src1) <= INT_RANGE_MAX (src2) + 1 &&
3444 INT_RANGE_MAX (src1) >= INT_RANGE_MIN (src2) - 1) ||
3445 (INT_RANGE_MIN (src2) <= INT_RANGE_MAX (src1) + 1 &&
3446 INT_RANGE_MAX (src2) >= INT_RANGE_MIN (src1) - 1)) {
3448 gint step = INT_RANGE_STEP (src1);
3449 gint min = step * MIN (INT_RANGE_MIN (src1), INT_RANGE_MIN (src2));
3450 gint max = step * MAX (INT_RANGE_MAX (src1), INT_RANGE_MAX (src2));
3451 g_value_init (dest, GST_TYPE_INT_RANGE);
3452 gst_value_set_int_range_step (dest, min, max, step);
3458 /* 3 - single value matches next or previous */
3459 if (INT_RANGE_STEP (src1) != INT_RANGE_STEP (src2)) {
3460 gint n1 = INT_RANGE_MAX (src1) - INT_RANGE_MIN (src1) + 1;
3461 gint n2 = INT_RANGE_MAX (src2) - INT_RANGE_MIN (src2) + 1;
3462 if (n1 == 1 || n2 == 1) {
3463 const GValue *range_value = NULL;
3467 scalar = INT_RANGE_MIN (src1) * INT_RANGE_STEP (src1);
3468 } else if (n2 == 1) {
3470 scalar = INT_RANGE_MIN (src2) * INT_RANGE_STEP (src2);
3474 (INT_RANGE_MIN (range_value) - 1) * INT_RANGE_STEP (range_value)) {
3476 guint64 new_min = (guint)
3477 ((INT_RANGE_MIN (range_value) -
3478 1) * INT_RANGE_STEP (range_value));
3479 guint64 new_max = (guint)
3480 (INT_RANGE_MAX (range_value) * INT_RANGE_STEP (range_value));
3482 gst_value_init_and_copy (dest, range_value);
3483 dest->data[0].v_uint64 = (new_min << 32) | (new_max);
3486 } else if (scalar ==
3487 (INT_RANGE_MAX (range_value) + 1) * INT_RANGE_STEP (range_value)) {
3489 guint64 new_min = (guint)
3490 (INT_RANGE_MIN (range_value) * INT_RANGE_STEP (range_value));
3491 guint64 new_max = (guint)
3492 ((INT_RANGE_MAX (range_value) +
3493 1) * INT_RANGE_STEP (range_value));
3494 gst_value_init_and_copy (dest, range_value);
3495 dest->data[0].v_uint64 = (new_min << 32) | (new_max);
3502 /* If we get there, we did not find a way to make a union that can be
3503 represented with our simplistic model. */
3512 gst_value_intersect_int_int_range (GValue * dest, const GValue * src1,
3513 const GValue * src2)
3515 if (INT_RANGE_MIN (src2) * INT_RANGE_STEP (src2) <= src1->data[0].v_int &&
3516 INT_RANGE_MAX (src2) * INT_RANGE_STEP (src2) >= src1->data[0].v_int &&
3517 src1->data[0].v_int % INT_RANGE_STEP (src2) == 0) {
3519 gst_value_init_and_copy (dest, src1);
3527 gst_value_intersect_int_range_int_range (GValue * dest, const GValue * src1,
3528 const GValue * src2)
3535 INT_RANGE_STEP (src1) /
3536 gst_util_greatest_common_divisor (INT_RANGE_STEP (src1),
3537 INT_RANGE_STEP (src2));
3538 if (G_MAXINT32 / INT_RANGE_STEP (src2) < step)
3540 step *= INT_RANGE_STEP (src2);
3543 MAX (INT_RANGE_MIN (src1) * INT_RANGE_STEP (src1),
3544 INT_RANGE_MIN (src2) * INT_RANGE_STEP (src2));
3545 min = (min + step - 1) / step * step;
3547 MIN (INT_RANGE_MAX (src1) * INT_RANGE_STEP (src1),
3548 INT_RANGE_MAX (src2) * INT_RANGE_STEP (src2));
3549 max = max / step * step;
3553 g_value_init (dest, GST_TYPE_INT_RANGE);
3554 gst_value_set_int_range_step (dest, min, max, step);
3560 g_value_init (dest, G_TYPE_INT);
3561 g_value_set_int (dest, min);
3569 #define INT64_RANGE_MIN_VAL(v) (INT64_RANGE_MIN (v) * INT64_RANGE_STEP (v))
3570 #define INT64_RANGE_MAX_VAL(v) (INT64_RANGE_MAX (v) * INT64_RANGE_STEP (v))
3573 gst_value_intersect_int64_int64_range (GValue * dest, const GValue * src1,
3574 const GValue * src2)
3576 if (INT64_RANGE_MIN_VAL (src2) <= src1->data[0].v_int64 &&
3577 INT64_RANGE_MAX_VAL (src2) >= src1->data[0].v_int64 &&
3578 src1->data[0].v_int64 % INT64_RANGE_STEP (src2) == 0) {
3580 gst_value_init_and_copy (dest, src1);
3588 gst_value_intersect_int64_range_int64_range (GValue * dest, const GValue * src1,
3589 const GValue * src2)
3596 INT64_RANGE_STEP (src1) /
3597 gst_util_greatest_common_divisor_int64 (INT64_RANGE_STEP (src1),
3598 INT64_RANGE_STEP (src2));
3599 if (G_MAXINT64 / INT64_RANGE_STEP (src2) < step)
3601 step *= INT64_RANGE_STEP (src2);
3604 MAX (INT64_RANGE_MIN (src1) * INT64_RANGE_STEP (src1),
3605 INT64_RANGE_MIN (src2) * INT64_RANGE_STEP (src2));
3606 min = (min + step - 1) / step * step;
3608 MIN (INT64_RANGE_MAX (src1) * INT64_RANGE_STEP (src1),
3609 INT64_RANGE_MAX (src2) * INT64_RANGE_STEP (src2));
3610 max = max / step * step;
3614 g_value_init (dest, GST_TYPE_INT64_RANGE);
3615 gst_value_set_int64_range_step (dest, min, max, step);
3621 g_value_init (dest, G_TYPE_INT64);
3622 g_value_set_int64 (dest, min);
3631 gst_value_intersect_double_double_range (GValue * dest, const GValue * src1,
3632 const GValue * src2)
3634 if (src2->data[0].v_double <= src1->data[0].v_double &&
3635 src2->data[1].v_double >= src1->data[0].v_double) {
3637 gst_value_init_and_copy (dest, src1);
3645 gst_value_intersect_double_range_double_range (GValue * dest,
3646 const GValue * src1, const GValue * src2)
3651 min = MAX (src1->data[0].v_double, src2->data[0].v_double);
3652 max = MIN (src1->data[1].v_double, src2->data[1].v_double);
3656 g_value_init (dest, GST_TYPE_DOUBLE_RANGE);
3657 gst_value_set_double_range (dest, min, max);
3663 g_value_init (dest, G_TYPE_DOUBLE);
3664 g_value_set_int (dest, (int) min);
3673 gst_value_intersect_list (GValue * dest, const GValue * value1,
3674 const GValue * value2)
3677 GValue intersection = { 0, };
3678 gboolean ret = FALSE;
3680 size = VALUE_LIST_SIZE (value1);
3681 for (i = 0; i < size; i++) {
3682 const GValue *cur = VALUE_LIST_GET_VALUE (value1, i);
3684 /* quicker version when we don't need the resulting set */
3686 if (gst_value_intersect (NULL, cur, value2)) {
3693 if (gst_value_intersect (&intersection, cur, value2)) {
3696 gst_value_move (dest, &intersection);
3698 } else if (GST_VALUE_HOLDS_LIST (dest)) {
3699 _gst_value_list_append_and_take_value (dest, &intersection);
3703 gst_value_move (&temp, dest);
3704 gst_value_list_merge (dest, &temp, &intersection);
3705 g_value_unset (&temp);
3706 g_value_unset (&intersection);
3715 gst_value_intersect_array (GValue * dest, const GValue * src1,
3716 const GValue * src2)
3722 /* only works on similar-sized arrays */
3723 size = gst_value_array_get_size (src1);
3724 if (size != gst_value_array_get_size (src2))
3727 /* quicker value when we don't need the resulting set */
3729 for (n = 0; n < size; n++) {
3730 if (!gst_value_intersect (NULL, gst_value_array_get_value (src1, n),
3731 gst_value_array_get_value (src2, n))) {
3738 g_value_init (dest, GST_TYPE_ARRAY);
3740 for (n = 0; n < size; n++) {
3741 if (!gst_value_intersect (&val, gst_value_array_get_value (src1, n),
3742 gst_value_array_get_value (src2, n))) {
3743 g_value_unset (dest);
3746 _gst_value_array_append_and_take_value (dest, &val);
3753 gst_value_intersect_fraction_fraction_range (GValue * dest, const GValue * src1,
3754 const GValue * src2)
3758 GstValueCompareFunc compare;
3760 vals = src2->data[0].v_pointer;
3765 if ((compare = gst_value_get_compare_func (src1))) {
3766 res1 = gst_value_compare_with_func (&vals[0], src1, compare);
3767 res2 = gst_value_compare_with_func (&vals[1], src1, compare);
3769 if ((res1 == GST_VALUE_EQUAL || res1 == GST_VALUE_LESS_THAN) &&
3770 (res2 == GST_VALUE_EQUAL || res2 == GST_VALUE_GREATER_THAN)) {
3772 gst_value_init_and_copy (dest, src1);
3781 gst_value_intersect_fraction_range_fraction_range (GValue * dest,
3782 const GValue * src1, const GValue * src2)
3787 GValue *vals1, *vals2;
3788 GstValueCompareFunc compare;
3790 vals1 = src1->data[0].v_pointer;
3791 vals2 = src2->data[0].v_pointer;
3792 g_return_val_if_fail (vals1 != NULL && vals2 != NULL, FALSE);
3794 if ((compare = gst_value_get_compare_func (&vals1[0]))) {
3795 /* min = MAX (src1.start, src2.start) */
3796 res = gst_value_compare_with_func (&vals1[0], &vals2[0], compare);
3797 g_return_val_if_fail (res != GST_VALUE_UNORDERED, FALSE);
3798 if (res == GST_VALUE_LESS_THAN)
3799 min = &vals2[0]; /* Take the max of the 2 */
3803 /* max = MIN (src1.end, src2.end) */
3804 res = gst_value_compare_with_func (&vals1[1], &vals2[1], compare);
3805 g_return_val_if_fail (res != GST_VALUE_UNORDERED, FALSE);
3806 if (res == GST_VALUE_GREATER_THAN)
3807 max = &vals2[1]; /* Take the min of the 2 */
3811 res = gst_value_compare_with_func (min, max, compare);
3812 g_return_val_if_fail (res != GST_VALUE_UNORDERED, FALSE);
3813 if (res == GST_VALUE_LESS_THAN) {
3815 g_value_init (dest, GST_TYPE_FRACTION_RANGE);
3816 vals1 = dest->data[0].v_pointer;
3817 g_value_copy (min, &vals1[0]);
3818 g_value_copy (max, &vals1[1]);
3822 if (res == GST_VALUE_EQUAL) {
3824 gst_value_init_and_copy (dest, min);
3837 gst_value_subtract_int_int_range (GValue * dest, const GValue * minuend,
3838 const GValue * subtrahend)
3840 gint min = gst_value_get_int_range_min (subtrahend);
3841 gint max = gst_value_get_int_range_max (subtrahend);
3842 gint step = gst_value_get_int_range_step (subtrahend);
3843 gint val = g_value_get_int (minuend);
3848 /* subtracting a range from an int only works if the int is not in the
3850 if (val < min || val > max || val % step) {
3851 /* and the result is the int */
3853 gst_value_init_and_copy (dest, minuend);
3859 /* creates a new int range based on input values.
3862 gst_value_create_new_range (GValue * dest, gint min1, gint max1, gint min2,
3863 gint max2, gint step)
3867 GValue *pv1, *pv2; /* yeah, hungarian! */
3869 g_return_val_if_fail (step > 0, FALSE);
3870 g_return_val_if_fail (min1 % step == 0, FALSE);
3871 g_return_val_if_fail (max1 % step == 0, FALSE);
3872 g_return_val_if_fail (min2 % step == 0, FALSE);
3873 g_return_val_if_fail (max2 % step == 0, FALSE);
3875 if (min1 <= max1 && min2 <= max2) {
3878 } else if (min1 <= max1) {
3881 } else if (min2 <= max2) {
3892 g_value_init (pv1, GST_TYPE_INT_RANGE);
3893 gst_value_set_int_range_step (pv1, min1, max1, step);
3894 } else if (min1 == max1) {
3895 g_value_init (pv1, G_TYPE_INT);
3896 g_value_set_int (pv1, min1);
3899 g_value_init (pv2, GST_TYPE_INT_RANGE);
3900 gst_value_set_int_range_step (pv2, min2, max2, step);
3901 } else if (min2 == max2) {
3902 g_value_init (pv2, G_TYPE_INT);
3903 g_value_set_int (pv2, min2);
3906 if (min1 <= max1 && min2 <= max2) {
3907 gst_value_list_concat_and_take_values (dest, pv1, pv2);
3913 gst_value_subtract_int_range_int (GValue * dest, const GValue * minuend,
3914 const GValue * subtrahend)
3916 gint min = gst_value_get_int_range_min (minuend);
3917 gint max = gst_value_get_int_range_max (minuend);
3918 gint step = gst_value_get_int_range_step (minuend);
3919 gint val = g_value_get_int (subtrahend);
3921 g_return_val_if_fail (min < max, FALSE);
3926 /* value is outside of the range, return range unchanged */
3927 if (val < min || val > max || val % step) {
3929 gst_value_init_and_copy (dest, minuend);
3932 /* max must be MAXINT too as val <= max */
3933 if (val >= G_MAXINT - step + 1) {
3937 /* min must be MININT too as val >= max */
3938 if (val <= G_MININT + step - 1) {
3943 gst_value_create_new_range (dest, min, val - step, val + step, max, step);
3949 gst_value_subtract_int_range_int_range (GValue * dest, const GValue * minuend,
3950 const GValue * subtrahend)
3952 gint min1 = gst_value_get_int_range_min (minuend);
3953 gint max1 = gst_value_get_int_range_max (minuend);
3954 gint step1 = gst_value_get_int_range_step (minuend);
3955 gint min2 = gst_value_get_int_range_min (subtrahend);
3956 gint max2 = gst_value_get_int_range_max (subtrahend);
3957 gint step2 = gst_value_get_int_range_step (subtrahend);
3960 if (step1 != step2) {
3970 if (max2 >= max1 && min2 <= min1) {
3972 } else if (max2 >= max1) {
3973 return gst_value_create_new_range (dest, min1, MIN (min2 - step, max1),
3975 } else if (min2 <= min1) {
3976 return gst_value_create_new_range (dest, MAX (max2 + step, min1), max1,
3979 return gst_value_create_new_range (dest, min1, MIN (min2 - step, max1),
3980 MAX (max2 + step, min1), max1, step);
3985 gst_value_subtract_int64_int64_range (GValue * dest, const GValue * minuend,
3986 const GValue * subtrahend)
3988 gint64 min = gst_value_get_int64_range_min (subtrahend);
3989 gint64 max = gst_value_get_int64_range_max (subtrahend);
3990 gint64 step = gst_value_get_int64_range_step (subtrahend);
3991 gint64 val = g_value_get_int64 (minuend);
3995 /* subtracting a range from an int64 only works if the int64 is not in the
3997 if (val < min || val > max || val % step) {
3998 /* and the result is the int64 */
4000 gst_value_init_and_copy (dest, minuend);
4006 /* creates a new int64 range based on input values.
4009 gst_value_create_new_int64_range (GValue * dest, gint64 min1, gint64 max1,
4010 gint64 min2, gint64 max2, gint64 step)
4014 GValue *pv1, *pv2; /* yeah, hungarian! */
4016 g_return_val_if_fail (step > 0, FALSE);
4017 g_return_val_if_fail (min1 % step == 0, FALSE);
4018 g_return_val_if_fail (max1 % step == 0, FALSE);
4019 g_return_val_if_fail (min2 % step == 0, FALSE);
4020 g_return_val_if_fail (max2 % step == 0, FALSE);
4022 if (min1 <= max1 && min2 <= max2) {
4025 } else if (min1 <= max1) {
4028 } else if (min2 <= max2) {
4039 g_value_init (pv1, GST_TYPE_INT64_RANGE);
4040 gst_value_set_int64_range_step (pv1, min1, max1, step);
4041 } else if (min1 == max1) {
4042 g_value_init (pv1, G_TYPE_INT64);
4043 g_value_set_int64 (pv1, min1);
4046 g_value_init (pv2, GST_TYPE_INT64_RANGE);
4047 gst_value_set_int64_range_step (pv2, min2, max2, step);
4048 } else if (min2 == max2) {
4049 g_value_init (pv2, G_TYPE_INT64);
4050 g_value_set_int64 (pv2, min2);
4053 if (min1 <= max1 && min2 <= max2) {
4054 gst_value_list_concat_and_take_values (dest, pv1, pv2);
4060 gst_value_subtract_int64_range_int64 (GValue * dest, const GValue * minuend,
4061 const GValue * subtrahend)
4063 gint64 min = gst_value_get_int64_range_min (minuend);
4064 gint64 max = gst_value_get_int64_range_max (minuend);
4065 gint64 step = gst_value_get_int64_range_step (minuend);
4066 gint64 val = g_value_get_int64 (subtrahend);
4068 g_return_val_if_fail (min < max, FALSE);
4073 /* value is outside of the range, return range unchanged */
4074 if (val < min || val > max || val % step) {
4076 gst_value_init_and_copy (dest, minuend);
4079 /* max must be MAXINT64 too as val <= max */
4080 if (val >= G_MAXINT64 - step + 1) {
4084 /* min must be MININT64 too as val >= max */
4085 if (val <= G_MININT64 + step - 1) {
4090 gst_value_create_new_int64_range (dest, min, val - step, val + step, max,
4097 gst_value_subtract_int64_range_int64_range (GValue * dest,
4098 const GValue * minuend, const GValue * subtrahend)
4100 gint64 min1 = gst_value_get_int64_range_min (minuend);
4101 gint64 max1 = gst_value_get_int64_range_max (minuend);
4102 gint64 step1 = gst_value_get_int64_range_step (minuend);
4103 gint64 min2 = gst_value_get_int64_range_min (subtrahend);
4104 gint64 max2 = gst_value_get_int64_range_max (subtrahend);
4105 gint64 step2 = gst_value_get_int64_range_step (subtrahend);
4108 if (step1 != step2) {
4119 if (max2 >= max1 && min2 <= min1) {
4121 } else if (max2 >= max1) {
4122 return gst_value_create_new_int64_range (dest, min1, MIN (min2 - step,
4123 max1), step, 0, step);
4124 } else if (min2 <= min1) {
4125 return gst_value_create_new_int64_range (dest, MAX (max2 + step, min1),
4126 max1, step, 0, step);
4128 return gst_value_create_new_int64_range (dest, min1, MIN (min2 - step,
4129 max1), MAX (max2 + step, min1), max1, step);
4134 gst_value_subtract_double_double_range (GValue * dest, const GValue * minuend,
4135 const GValue * subtrahend)
4137 gdouble min = gst_value_get_double_range_min (subtrahend);
4138 gdouble max = gst_value_get_double_range_max (subtrahend);
4139 gdouble val = g_value_get_double (minuend);
4141 if (val < min || val > max) {
4143 gst_value_init_and_copy (dest, minuend);
4150 gst_value_subtract_double_range_double (GValue * dest, const GValue * minuend,
4151 const GValue * subtrahend)
4153 /* since we don't have open ranges, we cannot create a hole in
4154 * a double range. We return the original range */
4156 gst_value_init_and_copy (dest, minuend);
4161 gst_value_subtract_double_range_double_range (GValue * dest,
4162 const GValue * minuend, const GValue * subtrahend)
4164 /* since we don't have open ranges, we have to approximate */
4165 /* done like with ints */
4166 gdouble min1 = gst_value_get_double_range_min (minuend);
4167 gdouble max2 = gst_value_get_double_range_max (minuend);
4168 gdouble max1 = MIN (gst_value_get_double_range_min (subtrahend), max2);
4169 gdouble min2 = MAX (gst_value_get_double_range_max (subtrahend), min1);
4172 GValue *pv1, *pv2; /* yeah, hungarian! */
4174 if (min1 < max1 && min2 < max2) {
4177 } else if (min1 < max1) {
4180 } else if (min2 < max2) {
4191 g_value_init (pv1, GST_TYPE_DOUBLE_RANGE);
4192 gst_value_set_double_range (pv1, min1, max1);
4195 g_value_init (pv2, GST_TYPE_DOUBLE_RANGE);
4196 gst_value_set_double_range (pv2, min2, max2);
4199 if (min1 < max1 && min2 < max2) {
4200 gst_value_list_concat_and_take_values (dest, pv1, pv2);
4206 gst_value_subtract_from_list (GValue * dest, const GValue * minuend,
4207 const GValue * subtrahend)
4210 GValue subtraction = { 0, };
4211 gboolean ret = FALSE;
4214 ltype = gst_value_list_get_type ();
4216 size = VALUE_LIST_SIZE (minuend);
4217 for (i = 0; i < size; i++) {
4218 const GValue *cur = VALUE_LIST_GET_VALUE (minuend, i);
4220 /* quicker version when we can discard the result */
4222 if (gst_value_subtract (NULL, cur, subtrahend)) {
4229 if (gst_value_subtract (&subtraction, cur, subtrahend)) {
4231 gst_value_move (dest, &subtraction);
4233 } else if (G_VALUE_HOLDS (dest, ltype)
4234 && !G_VALUE_HOLDS (&subtraction, ltype)) {
4235 _gst_value_list_append_and_take_value (dest, &subtraction);
4239 gst_value_move (&temp, dest);
4240 gst_value_list_concat_and_take_values (dest, &temp, &subtraction);
4248 gst_value_subtract_list (GValue * dest, const GValue * minuend,
4249 const GValue * subtrahend)
4252 GValue data[2] = { {0,}, {0,} };
4253 GValue *subtraction = &data[0], *result = &data[1];
4255 gst_value_init_and_copy (result, minuend);
4256 size = VALUE_LIST_SIZE (subtrahend);
4257 for (i = 0; i < size; i++) {
4258 const GValue *cur = VALUE_LIST_GET_VALUE (subtrahend, i);
4260 if (gst_value_subtract (subtraction, result, cur)) {
4261 GValue *temp = result;
4263 result = subtraction;
4265 g_value_unset (subtraction);
4267 g_value_unset (result);
4272 gst_value_move (dest, result);
4274 g_value_unset (result);
4280 gst_value_subtract_fraction_fraction_range (GValue * dest,
4281 const GValue * minuend, const GValue * subtrahend)
4283 const GValue *min = gst_value_get_fraction_range_min (subtrahend);
4284 const GValue *max = gst_value_get_fraction_range_max (subtrahend);
4285 GstValueCompareFunc compare;
4287 if ((compare = gst_value_get_compare_func (minuend))) {
4288 /* subtracting a range from an fraction only works if the fraction
4289 * is not in the range */
4290 if (gst_value_compare_with_func (minuend, min, compare) ==
4291 GST_VALUE_LESS_THAN ||
4292 gst_value_compare_with_func (minuend, max, compare) ==
4293 GST_VALUE_GREATER_THAN) {
4294 /* and the result is the value */
4296 gst_value_init_and_copy (dest, minuend);
4304 gst_value_subtract_fraction_range_fraction (GValue * dest,
4305 const GValue * minuend, const GValue * subtrahend)
4307 /* since we don't have open ranges, we cannot create a hole in
4308 * a range. We return the original range */
4310 gst_value_init_and_copy (dest, minuend);
4315 gst_value_subtract_fraction_range_fraction_range (GValue * dest,
4316 const GValue * minuend, const GValue * subtrahend)
4318 /* since we don't have open ranges, we have to approximate */
4319 /* done like with ints and doubles. Creates a list of 2 fraction ranges */
4320 const GValue *min1 = gst_value_get_fraction_range_min (minuend);
4321 const GValue *max2 = gst_value_get_fraction_range_max (minuend);
4322 const GValue *max1 = gst_value_get_fraction_range_min (subtrahend);
4323 const GValue *min2 = gst_value_get_fraction_range_max (subtrahend);
4327 GValue *pv1, *pv2; /* yeah, hungarian! */
4328 GstValueCompareFunc compare;
4330 g_return_val_if_fail (min1 != NULL && max1 != NULL, FALSE);
4331 g_return_val_if_fail (min2 != NULL && max2 != NULL, FALSE);
4333 compare = gst_value_get_compare_func (min1);
4334 g_return_val_if_fail (compare, FALSE);
4336 cmp1 = gst_value_compare_with_func (max2, max1, compare);
4337 g_return_val_if_fail (cmp1 != GST_VALUE_UNORDERED, FALSE);
4338 if (cmp1 == GST_VALUE_LESS_THAN)
4340 cmp1 = gst_value_compare_with_func (min1, min2, compare);
4341 g_return_val_if_fail (cmp1 != GST_VALUE_UNORDERED, FALSE);
4342 if (cmp1 == GST_VALUE_GREATER_THAN)
4345 cmp1 = gst_value_compare_with_func (min1, max1, compare);
4346 cmp2 = gst_value_compare_with_func (min2, max2, compare);
4348 if (cmp1 == GST_VALUE_LESS_THAN && cmp2 == GST_VALUE_LESS_THAN) {
4351 } else if (cmp1 == GST_VALUE_LESS_THAN) {
4354 } else if (cmp2 == GST_VALUE_LESS_THAN) {
4364 if (cmp1 == GST_VALUE_LESS_THAN) {
4365 g_value_init (pv1, GST_TYPE_FRACTION_RANGE);
4366 gst_value_set_fraction_range (pv1, min1, max1);
4368 if (cmp2 == GST_VALUE_LESS_THAN) {
4369 g_value_init (pv2, GST_TYPE_FRACTION_RANGE);
4370 gst_value_set_fraction_range (pv2, min2, max2);
4373 if (cmp1 == GST_VALUE_LESS_THAN && cmp2 == GST_VALUE_LESS_THAN) {
4374 gst_value_list_concat_and_take_values (dest, pv1, pv2);
4385 * gst_value_get_compare_func:
4386 * @value1: a value to get the compare function for
4388 * Determines the compare function to be used with values of the same type as
4389 * @value1. The function can be given to gst_value_compare_with_func().
4391 * Returns: A #GstValueCompareFunc value
4393 static GstValueCompareFunc
4394 gst_value_get_compare_func (const GValue * value1)
4396 GstValueTable *table, *best = NULL;
4400 type1 = G_VALUE_TYPE (value1);
4402 /* this is a fast check */
4403 best = gst_value_hash_lookup_type (type1);
4406 if (G_UNLIKELY (!best || !best->compare)) {
4407 guint len = gst_value_table->len;
4410 for (i = 0; i < len; i++) {
4411 table = &g_array_index (gst_value_table, GstValueTable, i);
4412 if (table->compare && g_type_is_a (type1, table->type)) {
4413 if (!best || g_type_is_a (table->type, best->type))
4418 if (G_LIKELY (best))
4419 return best->compare;
4425 * gst_value_can_compare:
4426 * @value1: a value to compare
4427 * @value2: another value to compare
4429 * Determines if @value1 and @value2 can be compared.
4431 * Returns: %TRUE if the values can be compared
4434 gst_value_can_compare (const GValue * value1, const GValue * value2)
4436 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
4437 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
4439 if (G_VALUE_TYPE (value1) != G_VALUE_TYPE (value2))
4442 return gst_value_get_compare_func (value1) != NULL;
4446 gst_value_list_equals_range (const GValue * list, const GValue * value)
4448 const GValue *first;
4451 g_return_val_if_fail (G_IS_VALUE (list), FALSE);
4452 g_return_val_if_fail (G_IS_VALUE (value), FALSE);
4453 g_return_val_if_fail (GST_VALUE_HOLDS_LIST (list), FALSE);
4455 /* TODO: compare against an empty list ? No type though... */
4456 list_size = VALUE_LIST_SIZE (list);
4460 /* compare the basic types - they have to match */
4461 first = VALUE_LIST_GET_VALUE (list, 0);
4462 #define CHECK_TYPES(type,prefix) \
4463 (prefix##_VALUE_HOLDS_##type(first) && GST_VALUE_HOLDS_##type##_RANGE (value))
4464 if (CHECK_TYPES (INT, G)) {
4465 const gint rmin = gst_value_get_int_range_min (value);
4466 const gint rmax = gst_value_get_int_range_max (value);
4467 const gint rstep = gst_value_get_int_range_step (value);
4470 /* note: this will overflow for min 0 and max INT_MAX, but this
4471 would only be equal to a list of INT_MAX elements, which seems
4473 if (list_size != rmax / rstep - rmin / rstep + 1)
4475 for (n = 0; n < list_size; ++n) {
4476 gint v = g_value_get_int (VALUE_LIST_GET_VALUE (list, n));
4477 if (v < rmin || v > rmax || v % rstep) {
4482 } else if (CHECK_TYPES (INT64, G)) {
4483 const gint64 rmin = gst_value_get_int64_range_min (value);
4484 const gint64 rmax = gst_value_get_int64_range_max (value);
4485 const gint64 rstep = gst_value_get_int64_range_step (value);
4486 GST_DEBUG ("List/range of int64s");
4489 if (list_size != rmax / rstep - rmin / rstep + 1)
4491 for (n = 0; n < list_size; ++n) {
4492 gint64 v = g_value_get_int64 (VALUE_LIST_GET_VALUE (list, n));
4493 if (v < rmin || v > rmax || v % rstep)
4500 /* other combinations don't make sense for equality */
4504 /* "Pure" variant of gst_value_compare which is guaranteed to
4505 * not have list arguments and therefore does basic comparisions
4508 _gst_value_compare_nolist (const GValue * value1, const GValue * value2)
4510 GstValueCompareFunc compare;
4512 if (G_VALUE_TYPE (value1) != G_VALUE_TYPE (value2))
4513 return GST_VALUE_UNORDERED;
4515 compare = gst_value_get_compare_func (value1);
4517 return compare (value1, value2);
4520 g_critical ("unable to compare values of type %s\n",
4521 g_type_name (G_VALUE_TYPE (value1)));
4522 return GST_VALUE_UNORDERED;
4526 * gst_value_compare:
4527 * @value1: a value to compare
4528 * @value2: another value to compare
4530 * Compares @value1 and @value2. If @value1 and @value2 cannot be
4531 * compared, the function returns GST_VALUE_UNORDERED. Otherwise,
4532 * if @value1 is greater than @value2, GST_VALUE_GREATER_THAN is returned.
4533 * If @value1 is less than @value2, GST_VALUE_LESS_THAN is returned.
4534 * If the values are equal, GST_VALUE_EQUAL is returned.
4536 * Returns: comparison result
4539 gst_value_compare (const GValue * value1, const GValue * value2)
4543 g_return_val_if_fail (G_IS_VALUE (value1), GST_VALUE_LESS_THAN);
4544 g_return_val_if_fail (G_IS_VALUE (value2), GST_VALUE_GREATER_THAN);
4546 /* Special cases: lists and scalar values ("{ 1 }" and "1" are equal),
4547 as well as lists and ranges ("{ 1, 2 }" and "[ 1, 2 ]" are equal) */
4548 ltype = gst_value_list_get_type ();
4549 if (G_VALUE_HOLDS (value1, ltype) && !G_VALUE_HOLDS (value2, ltype)) {
4552 if (gst_value_list_equals_range (value1, value2)) {
4553 return GST_VALUE_EQUAL;
4556 n = gst_value_list_get_size (value1);
4558 return GST_VALUE_UNORDERED;
4560 for (i = 0; i < n; i++) {
4563 elt = gst_value_list_get_value (value1, i);
4564 ret = gst_value_compare (elt, value2);
4565 if (ret != GST_VALUE_EQUAL && n == 1)
4567 else if (ret != GST_VALUE_EQUAL)
4568 return GST_VALUE_UNORDERED;
4571 return GST_VALUE_EQUAL;
4572 } else if (G_VALUE_HOLDS (value2, ltype) && !G_VALUE_HOLDS (value1, ltype)) {
4575 if (gst_value_list_equals_range (value2, value1)) {
4576 return GST_VALUE_EQUAL;
4579 n = gst_value_list_get_size (value2);
4581 return GST_VALUE_UNORDERED;
4583 for (i = 0; i < n; i++) {
4586 elt = gst_value_list_get_value (value2, i);
4587 ret = gst_value_compare (elt, value1);
4588 if (ret != GST_VALUE_EQUAL && n == 1)
4590 else if (ret != GST_VALUE_EQUAL)
4591 return GST_VALUE_UNORDERED;
4594 return GST_VALUE_EQUAL;
4597 /* And now handle the generic case */
4598 return _gst_value_compare_nolist (value1, value2);
4602 * gst_value_compare_with_func:
4603 * @value1: a value to compare
4604 * @value2: another value to compare
4605 * @compare: compare function
4607 * Compares @value1 and @value2 using the @compare function. Works like
4608 * gst_value_compare() but allows to save time determining the compare function
4611 * Returns: comparison result
4614 gst_value_compare_with_func (const GValue * value1, const GValue * value2,
4615 GstValueCompareFunc compare)
4619 if (G_VALUE_TYPE (value1) != G_VALUE_TYPE (value2))
4620 return GST_VALUE_UNORDERED;
4622 return compare (value1, value2);
4628 * gst_value_can_union:
4629 * @value1: a value to union
4630 * @value2: another value to union
4632 * Determines if @value1 and @value2 can be non-trivially unioned.
4633 * Any two values can be trivially unioned by adding both of them
4634 * to a #GstValueList. However, certain types have the possibility
4635 * to be unioned in a simpler way. For example, an integer range
4636 * and an integer can be unioned if the integer is a subset of the
4637 * integer range. If there is the possibility that two values can
4638 * be unioned, this function returns %TRUE.
4640 * Returns: %TRUE if there is a function allowing the two values to
4644 gst_value_can_union (const GValue * value1, const GValue * value2)
4646 GstValueUnionInfo *union_info;
4649 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
4650 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
4652 len = gst_value_union_funcs->len;
4654 for (i = 0; i < len; i++) {
4655 union_info = &g_array_index (gst_value_union_funcs, GstValueUnionInfo, i);
4656 if (union_info->type1 == G_VALUE_TYPE (value1) &&
4657 union_info->type2 == G_VALUE_TYPE (value2))
4659 if (union_info->type1 == G_VALUE_TYPE (value2) &&
4660 union_info->type2 == G_VALUE_TYPE (value1))
4669 * @dest: (out caller-allocates): the destination value
4670 * @value1: a value to union
4671 * @value2: another value to union
4673 * Creates a GValue corresponding to the union of @value1 and @value2.
4675 * Returns: %TRUE if the union succeeded.
4678 gst_value_union (GValue * dest, const GValue * value1, const GValue * value2)
4680 const GstValueUnionInfo *union_info;
4684 g_return_val_if_fail (dest != NULL, FALSE);
4685 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
4686 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
4687 g_return_val_if_fail (gst_value_list_or_array_are_compatible (value1, value2),
4690 len = gst_value_union_funcs->len;
4691 type1 = G_VALUE_TYPE (value1);
4692 type2 = G_VALUE_TYPE (value2);
4694 for (i = 0; i < len; i++) {
4695 union_info = &g_array_index (gst_value_union_funcs, GstValueUnionInfo, i);
4696 if (union_info->type1 == type1 && union_info->type2 == type2) {
4697 return union_info->func (dest, value1, value2);
4699 if (union_info->type1 == type2 && union_info->type2 == type1) {
4700 return union_info->func (dest, value2, value1);
4704 gst_value_list_concat (dest, value1, value2);
4708 /* gst_value_register_union_func: (skip)
4709 * @type1: a type to union
4710 * @type2: another type to union
4711 * @func: a function that implements creating a union between the two types
4713 * Registers a union function that can create a union between #GValue items
4714 * of the type @type1 and @type2.
4716 * Union functions should be registered at startup before any pipelines are
4717 * started, as gst_value_register_union_func() is not thread-safe and cannot
4718 * be used at the same time as gst_value_union() or gst_value_can_union().
4721 gst_value_register_union_func (GType type1, GType type2, GstValueUnionFunc func)
4723 GstValueUnionInfo union_info;
4725 union_info.type1 = type1;
4726 union_info.type2 = type2;
4727 union_info.func = func;
4729 g_array_append_val (gst_value_union_funcs, union_info);
4735 * gst_value_can_intersect:
4736 * @value1: a value to intersect
4737 * @value2: another value to intersect
4739 * Determines if intersecting two values will produce a valid result.
4740 * Two values will produce a valid intersection if they have the same
4743 * Returns: %TRUE if the values can intersect
4746 gst_value_can_intersect (const GValue * value1, const GValue * value2)
4748 GstValueIntersectInfo *intersect_info;
4750 GType ltype, type1, type2;
4752 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
4753 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
4755 ltype = gst_value_list_get_type ();
4758 if (G_VALUE_HOLDS (value1, ltype) || G_VALUE_HOLDS (value2, ltype))
4761 type1 = G_VALUE_TYPE (value1);
4762 type2 = G_VALUE_TYPE (value2);
4764 /* practically all GstValue types have a compare function (_can_compare=TRUE)
4765 * GstStructure and GstCaps have npot, but are intersectable */
4769 /* check registered intersect functions */
4770 len = gst_value_intersect_funcs->len;
4771 for (i = 0; i < len; i++) {
4772 intersect_info = &g_array_index (gst_value_intersect_funcs,
4773 GstValueIntersectInfo, i);
4774 if ((intersect_info->type1 == type1 && intersect_info->type2 == type2) ||
4775 (intersect_info->type1 == type2 && intersect_info->type2 == type1))
4779 return gst_value_can_compare (value1, value2);
4783 * gst_value_intersect:
4784 * @dest: (out caller-allocates) (transfer full): a uninitialized #GValue that will hold the calculated
4785 * intersection value. May be %NULL if the resulting set if not needed.
4786 * @value1: a value to intersect
4787 * @value2: another value to intersect
4789 * Calculates the intersection of two values. If the values have
4790 * a non-empty intersection, the value representing the intersection
4791 * is placed in @dest, unless %NULL. If the intersection is non-empty,
4792 * @dest is not modified.
4794 * Returns: %TRUE if the intersection is non-empty
4797 gst_value_intersect (GValue * dest, const GValue * value1,
4798 const GValue * value2)
4800 GstValueIntersectInfo *intersect_info;
4802 GType ltype, type1, type2;
4804 g_return_val_if_fail (G_IS_VALUE (value1), FALSE);
4805 g_return_val_if_fail (G_IS_VALUE (value2), FALSE);
4807 ltype = gst_value_list_get_type ();
4809 /* special cases first */
4810 if (G_VALUE_HOLDS (value1, ltype))
4811 return gst_value_intersect_list (dest, value1, value2);
4812 if (G_VALUE_HOLDS (value2, ltype))
4813 return gst_value_intersect_list (dest, value2, value1);
4815 if (_gst_value_compare_nolist (value1, value2) == GST_VALUE_EQUAL) {
4817 gst_value_init_and_copy (dest, value1);
4821 type1 = G_VALUE_TYPE (value1);
4822 type2 = G_VALUE_TYPE (value2);
4824 len = gst_value_intersect_funcs->len;
4825 for (i = 0; i < len; i++) {
4826 intersect_info = &g_array_index (gst_value_intersect_funcs,
4827 GstValueIntersectInfo, i);
4828 if (intersect_info->type1 == type1 && intersect_info->type2 == type2) {
4829 return intersect_info->func (dest, value1, value2);
4831 if (intersect_info->type1 == type2 && intersect_info->type2 == type1) {
4832 return intersect_info->func (dest, value2, value1);
4840 /* gst_value_register_intersect_func: (skip)
4841 * @type1: the first type to intersect
4842 * @type2: the second type to intersect
4843 * @func: the intersection function
4845 * Registers a function that is called to calculate the intersection
4846 * of the values having the types @type1 and @type2.
4848 * Intersect functions should be registered at startup before any pipelines are
4849 * started, as gst_value_register_intersect_func() is not thread-safe and
4850 * cannot be used at the same time as gst_value_intersect() or
4851 * gst_value_can_intersect().
4854 gst_value_register_intersect_func (GType type1, GType type2,
4855 GstValueIntersectFunc func)
4857 GstValueIntersectInfo intersect_info;
4859 intersect_info.type1 = type1;
4860 intersect_info.type2 = type2;
4861 intersect_info.func = func;
4863 g_array_append_val (gst_value_intersect_funcs, intersect_info);
4870 * gst_value_subtract:
4871 * @dest: (out caller-allocates): the destination value for the result if the
4872 * subtraction is not empty. May be %NULL, in which case the resulting set
4873 * will not be computed, which can give a fair speedup.
4874 * @minuend: the value to subtract from
4875 * @subtrahend: the value to subtract
4877 * Subtracts @subtrahend from @minuend and stores the result in @dest.
4878 * Note that this means subtraction as in sets, not as in mathematics.
4880 * Returns: %TRUE if the subtraction is not empty
4883 gst_value_subtract (GValue * dest, const GValue * minuend,
4884 const GValue * subtrahend)
4886 GstValueSubtractInfo *info;
4888 GType ltype, mtype, stype;
4890 g_return_val_if_fail (G_IS_VALUE (minuend), FALSE);
4891 g_return_val_if_fail (G_IS_VALUE (subtrahend), FALSE);
4893 ltype = gst_value_list_get_type ();
4895 /* special cases first */
4896 if (G_VALUE_HOLDS (minuend, ltype))
4897 return gst_value_subtract_from_list (dest, minuend, subtrahend);
4898 if (G_VALUE_HOLDS (subtrahend, ltype))
4899 return gst_value_subtract_list (dest, minuend, subtrahend);
4901 mtype = G_VALUE_TYPE (minuend);
4902 stype = G_VALUE_TYPE (subtrahend);
4904 len = gst_value_subtract_funcs->len;
4905 for (i = 0; i < len; i++) {
4906 info = &g_array_index (gst_value_subtract_funcs, GstValueSubtractInfo, i);
4907 if (info->minuend == mtype && info->subtrahend == stype) {
4908 return info->func (dest, minuend, subtrahend);
4912 if (_gst_value_compare_nolist (minuend, subtrahend) != GST_VALUE_EQUAL) {
4914 gst_value_init_and_copy (dest, minuend);
4923 gst_value_subtract (GValue * dest, const GValue * minuend,
4924 const GValue * subtrahend)
4926 gboolean ret = gst_value_subtract2 (dest, minuend, subtrahend);
4928 g_printerr ("\"%s\" - \"%s\" = \"%s\"\n", gst_value_serialize (minuend),
4929 gst_value_serialize (subtrahend),
4930 ret ? gst_value_serialize (dest) : "---");
4936 * gst_value_can_subtract:
4937 * @minuend: the value to subtract from
4938 * @subtrahend: the value to subtract
4940 * Checks if it's possible to subtract @subtrahend from @minuend.
4942 * Returns: %TRUE if a subtraction is possible
4945 gst_value_can_subtract (const GValue * minuend, const GValue * subtrahend)
4947 GstValueSubtractInfo *info;
4949 GType ltype, mtype, stype;
4951 g_return_val_if_fail (G_IS_VALUE (minuend), FALSE);
4952 g_return_val_if_fail (G_IS_VALUE (subtrahend), FALSE);
4954 ltype = gst_value_list_get_type ();
4957 if (G_VALUE_HOLDS (minuend, ltype) || G_VALUE_HOLDS (subtrahend, ltype))
4960 mtype = G_VALUE_TYPE (minuend);
4961 stype = G_VALUE_TYPE (subtrahend);
4963 len = gst_value_subtract_funcs->len;
4964 for (i = 0; i < len; i++) {
4965 info = &g_array_index (gst_value_subtract_funcs, GstValueSubtractInfo, i);
4966 if (info->minuend == mtype && info->subtrahend == stype)
4970 return gst_value_can_compare (minuend, subtrahend);
4973 /* gst_value_register_subtract_func: (skip)
4974 * @minuend_type: type of the minuend
4975 * @subtrahend_type: type of the subtrahend
4976 * @func: function to use
4978 * Registers @func as a function capable of subtracting the values of
4979 * @subtrahend_type from values of @minuend_type.
4981 * Subtract functions should be registered at startup before any pipelines are
4982 * started, as gst_value_register_subtract_func() is not thread-safe and
4983 * cannot be used at the same time as gst_value_subtract().
4986 gst_value_register_subtract_func (GType minuend_type, GType subtrahend_type,
4987 GstValueSubtractFunc func)
4989 GstValueSubtractInfo info;
4991 g_return_if_fail (!gst_type_is_fixed (minuend_type)
4992 || !gst_type_is_fixed (subtrahend_type));
4994 info.minuend = minuend_type;
4995 info.subtrahend = subtrahend_type;
4998 g_array_append_val (gst_value_subtract_funcs, info);
5002 * gst_value_register:
5003 * @table: structure containing functions to register
5005 * Registers functions to perform calculations on #GValue items of a given
5006 * type. Each type can only be added once.
5009 gst_value_register (const GstValueTable * table)
5011 GstValueTable *found;
5013 g_return_if_fail (table != NULL);
5015 g_array_append_val (gst_value_table, *table);
5017 found = gst_value_hash_lookup_type (table->type);
5019 g_warning ("adding type %s multiple times", g_type_name (table->type));
5021 /* FIXME: we're not really doing the const justice, we assume the table is
5023 gst_value_hash_add_type (table->type, table);
5027 * gst_value_init_and_copy:
5028 * @dest: (out caller-allocates): the target value
5029 * @src: the source value
5031 * Initialises the target value to be of the same type as source and then copies
5032 * the contents from source to target.
5035 gst_value_init_and_copy (GValue * dest, const GValue * src)
5037 g_return_if_fail (G_IS_VALUE (src));
5038 g_return_if_fail (dest != NULL);
5040 g_value_init (dest, G_VALUE_TYPE (src));
5041 g_value_copy (src, dest);
5044 /* move src into dest and clear src */
5046 gst_value_move (GValue * dest, GValue * src)
5048 g_assert (G_IS_VALUE (src));
5049 g_assert (dest != NULL);
5052 memset (src, 0, sizeof (GValue));
5056 * gst_value_serialize:
5057 * @value: a #GValue to serialize
5059 * tries to transform the given @value into a string representation that allows
5060 * getting back this string later on using gst_value_deserialize().
5062 * Free-function: g_free
5064 * Returns: (transfer full): the serialization for @value or %NULL if none exists
5067 gst_value_serialize (const GValue * value)
5070 GValue s_val = { 0 };
5071 GstValueTable *table, *best;
5075 g_return_val_if_fail (G_IS_VALUE (value), NULL);
5077 type = G_VALUE_TYPE (value);
5079 best = gst_value_hash_lookup_type (type);
5081 if (G_UNLIKELY (!best || !best->serialize)) {
5082 len = gst_value_table->len;
5084 for (i = 0; i < len; i++) {
5085 table = &g_array_index (gst_value_table, GstValueTable, i);
5086 if (table->serialize && g_type_is_a (type, table->type)) {
5087 if (!best || g_type_is_a (table->type, best->type))
5092 if (G_LIKELY (best))
5093 return best->serialize (value);
5095 g_value_init (&s_val, G_TYPE_STRING);
5096 if (g_value_transform (value, &s_val)) {
5097 s = gst_string_wrap (g_value_get_string (&s_val));
5101 g_value_unset (&s_val);
5107 * gst_value_deserialize:
5108 * @dest: (out caller-allocates): #GValue to fill with contents of
5110 * @src: string to deserialize
5112 * Tries to deserialize a string into the type specified by the given GValue.
5113 * If the operation succeeds, %TRUE is returned, %FALSE otherwise.
5115 * Returns: %TRUE on success
5118 gst_value_deserialize (GValue * dest, const gchar * src)
5120 GstValueTable *table, *best;
5124 g_return_val_if_fail (src != NULL, FALSE);
5125 g_return_val_if_fail (G_IS_VALUE (dest), FALSE);
5127 type = G_VALUE_TYPE (dest);
5129 best = gst_value_hash_lookup_type (type);
5130 if (G_UNLIKELY (!best || !best->deserialize)) {
5131 len = gst_value_table->len;
5133 for (i = 0; i < len; i++) {
5134 table = &g_array_index (gst_value_table, GstValueTable, i);
5135 if (table->deserialize && g_type_is_a (type, table->type)) {
5136 if (!best || g_type_is_a (table->type, best->type))
5141 if (G_LIKELY (best))
5142 return best->deserialize (dest, src);
5148 * gst_value_is_fixed:
5149 * @value: the #GValue to check
5151 * Tests if the given GValue, if available in a GstStructure (or any other
5152 * container) contains a "fixed" (which means: one value) or an "unfixed"
5153 * (which means: multiple possible values, such as data lists or data
5156 * Returns: true if the value is "fixed".
5160 gst_value_is_fixed (const GValue * value)
5164 g_return_val_if_fail (G_IS_VALUE (value), FALSE);
5166 type = G_VALUE_TYPE (value);
5168 /* the most common types are just basic plain glib types */
5169 if (type <= G_TYPE_MAKE_FUNDAMENTAL (G_TYPE_RESERVED_GLIB_LAST)) {
5173 if (type == GST_TYPE_ARRAY) {
5177 /* check recursively */
5178 size = gst_value_array_get_size (value);
5179 for (n = 0; n < size; n++) {
5180 kid = gst_value_array_get_value (value, n);
5181 if (!gst_value_is_fixed (kid))
5186 return gst_type_is_fixed (type);
5191 * @dest: the #GValue destination
5192 * @src: the #GValue to fixate
5194 * Fixate @src into a new value @dest.
5195 * For ranges, the first element is taken. For lists and arrays, the
5196 * first item is fixated and returned.
5197 * If @src is already fixed, this function returns %FALSE.
5199 * Returns: %TRUE if @dest contains a fixated version of @src.
5202 gst_value_fixate (GValue * dest, const GValue * src)
5204 g_return_val_if_fail (G_IS_VALUE (src), FALSE);
5205 g_return_val_if_fail (dest != NULL, FALSE);
5207 if (G_VALUE_TYPE (src) == GST_TYPE_INT_RANGE) {
5208 g_value_init (dest, G_TYPE_INT);
5209 g_value_set_int (dest, gst_value_get_int_range_min (src));
5210 } else if (G_VALUE_TYPE (src) == GST_TYPE_DOUBLE_RANGE) {
5211 g_value_init (dest, G_TYPE_DOUBLE);
5212 g_value_set_double (dest, gst_value_get_double_range_min (src));
5213 } else if (G_VALUE_TYPE (src) == GST_TYPE_FRACTION_RANGE) {
5214 gst_value_init_and_copy (dest, gst_value_get_fraction_range_min (src));
5215 } else if (G_VALUE_TYPE (src) == GST_TYPE_LIST) {
5216 GValue temp = { 0 };
5218 /* list could be empty */
5219 if (gst_value_list_get_size (src) <= 0)
5222 gst_value_init_and_copy (&temp, gst_value_list_get_value (src, 0));
5224 if (!gst_value_fixate (dest, &temp)) {
5225 gst_value_move (dest, &temp);
5227 g_value_unset (&temp);
5229 } else if (G_VALUE_TYPE (src) == GST_TYPE_ARRAY) {
5230 gboolean res = FALSE;
5233 len = gst_value_array_get_size (src);
5234 g_value_init (dest, GST_TYPE_ARRAY);
5235 for (n = 0; n < len; n++) {
5237 const GValue *orig_kid = gst_value_array_get_value (src, n);
5239 if (!gst_value_fixate (&kid, orig_kid))
5240 gst_value_init_and_copy (&kid, orig_kid);
5243 _gst_value_array_append_and_take_value (dest, &kid);
5247 g_value_unset (dest);
5261 /* helper functions */
5263 gst_value_init_fraction (GValue * value)
5265 value->data[0].v_int = 0;
5266 value->data[1].v_int = 1;
5270 gst_value_copy_fraction (const GValue * src_value, GValue * dest_value)
5272 dest_value->data[0].v_int = src_value->data[0].v_int;
5273 dest_value->data[1].v_int = src_value->data[1].v_int;
5277 gst_value_collect_fraction (GValue * value, guint n_collect_values,
5278 GTypeCValue * collect_values, guint collect_flags)
5280 if (n_collect_values != 2)
5281 return g_strdup_printf ("not enough value locations for `%s' passed",
5282 G_VALUE_TYPE_NAME (value));
5283 if (collect_values[1].v_int == 0)
5284 return g_strdup_printf ("passed '0' as denominator for `%s'",
5285 G_VALUE_TYPE_NAME (value));
5286 if (collect_values[0].v_int < -G_MAXINT)
5289 ("passed value smaller than -G_MAXINT as numerator for `%s'",
5290 G_VALUE_TYPE_NAME (value));
5291 if (collect_values[1].v_int < -G_MAXINT)
5294 ("passed value smaller than -G_MAXINT as denominator for `%s'",
5295 G_VALUE_TYPE_NAME (value));
5297 gst_value_set_fraction (value,
5298 collect_values[0].v_int, collect_values[1].v_int);
5304 gst_value_lcopy_fraction (const GValue * value, guint n_collect_values,
5305 GTypeCValue * collect_values, guint collect_flags)
5307 gint *numerator = collect_values[0].v_pointer;
5308 gint *denominator = collect_values[1].v_pointer;
5311 return g_strdup_printf ("numerator for `%s' passed as NULL",
5312 G_VALUE_TYPE_NAME (value));
5314 return g_strdup_printf ("denominator for `%s' passed as NULL",
5315 G_VALUE_TYPE_NAME (value));
5317 *numerator = value->data[0].v_int;
5318 *denominator = value->data[1].v_int;
5324 * gst_value_set_fraction:
5325 * @value: a GValue initialized to #GST_TYPE_FRACTION
5326 * @numerator: the numerator of the fraction
5327 * @denominator: the denominator of the fraction
5329 * Sets @value to the fraction specified by @numerator over @denominator.
5330 * The fraction gets reduced to the smallest numerator and denominator,
5331 * and if necessary the sign is moved to the numerator.
5334 gst_value_set_fraction (GValue * value, gint numerator, gint denominator)
5338 g_return_if_fail (GST_VALUE_HOLDS_FRACTION (value));
5339 g_return_if_fail (denominator != 0);
5340 g_return_if_fail (denominator >= -G_MAXINT);
5341 g_return_if_fail (numerator >= -G_MAXINT);
5343 /* normalize sign */
5344 if (denominator < 0) {
5345 numerator = -numerator;
5346 denominator = -denominator;
5349 /* check for reduction */
5350 gcd = gst_util_greatest_common_divisor (numerator, denominator);
5356 g_assert (denominator > 0);
5358 value->data[0].v_int = numerator;
5359 value->data[1].v_int = denominator;
5363 * gst_value_get_fraction_numerator:
5364 * @value: a GValue initialized to #GST_TYPE_FRACTION
5366 * Gets the numerator of the fraction specified by @value.
5368 * Returns: the numerator of the fraction.
5371 gst_value_get_fraction_numerator (const GValue * value)
5373 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (value), 0);
5375 return value->data[0].v_int;
5379 * gst_value_get_fraction_denominator:
5380 * @value: a GValue initialized to #GST_TYPE_FRACTION
5382 * Gets the denominator of the fraction specified by @value.
5384 * Returns: the denominator of the fraction.
5387 gst_value_get_fraction_denominator (const GValue * value)
5389 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (value), 1);
5391 return value->data[1].v_int;
5395 * gst_value_fraction_multiply:
5396 * @product: a GValue initialized to #GST_TYPE_FRACTION
5397 * @factor1: a GValue initialized to #GST_TYPE_FRACTION
5398 * @factor2: a GValue initialized to #GST_TYPE_FRACTION
5400 * Multiplies the two #GValue items containing a #GST_TYPE_FRACTION and sets
5401 * @product to the product of the two fractions.
5403 * Returns: %FALSE in case of an error (like integer overflow), %TRUE otherwise.
5406 gst_value_fraction_multiply (GValue * product, const GValue * factor1,
5407 const GValue * factor2)
5409 gint n1, n2, d1, d2;
5412 g_return_val_if_fail (product != NULL, FALSE);
5413 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (factor1), FALSE);
5414 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (factor2), FALSE);
5416 n1 = factor1->data[0].v_int;
5417 n2 = factor2->data[0].v_int;
5418 d1 = factor1->data[1].v_int;
5419 d2 = factor2->data[1].v_int;
5421 if (!gst_util_fraction_multiply (n1, d1, n2, d2, &res_n, &res_d))
5424 gst_value_set_fraction (product, res_n, res_d);
5430 * gst_value_fraction_subtract:
5431 * @dest: a GValue initialized to #GST_TYPE_FRACTION
5432 * @minuend: a GValue initialized to #GST_TYPE_FRACTION
5433 * @subtrahend: a GValue initialized to #GST_TYPE_FRACTION
5435 * Subtracts the @subtrahend from the @minuend and sets @dest to the result.
5437 * Returns: %FALSE in case of an error (like integer overflow), %TRUE otherwise.
5440 gst_value_fraction_subtract (GValue * dest,
5441 const GValue * minuend, const GValue * subtrahend)
5443 gint n1, n2, d1, d2;
5446 g_return_val_if_fail (dest != NULL, FALSE);
5447 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (minuend), FALSE);
5448 g_return_val_if_fail (GST_VALUE_HOLDS_FRACTION (subtrahend), FALSE);
5450 n1 = minuend->data[0].v_int;
5451 n2 = subtrahend->data[0].v_int;
5452 d1 = minuend->data[1].v_int;
5453 d2 = subtrahend->data[1].v_int;
5455 if (!gst_util_fraction_add (n1, d1, -n2, d2, &res_n, &res_d))
5457 gst_value_set_fraction (dest, res_n, res_d);
5463 gst_value_serialize_fraction (const GValue * value)
5465 gint32 numerator = value->data[0].v_int;
5466 gint32 denominator = value->data[1].v_int;
5467 gboolean positive = TRUE;
5469 /* get the sign and make components absolute */
5470 if (numerator < 0) {
5471 numerator = -numerator;
5472 positive = !positive;
5474 if (denominator < 0) {
5475 denominator = -denominator;
5476 positive = !positive;
5479 return g_strdup_printf ("%s%d/%d",
5480 positive ? "" : "-", numerator, denominator);
5484 gst_value_deserialize_fraction (GValue * dest, const gchar * s)
5489 if (G_UNLIKELY (s == NULL))
5492 if (G_UNLIKELY (dest == NULL || !GST_VALUE_HOLDS_FRACTION (dest)))
5495 if (sscanf (s, "%d/%d%n", &num, &den, &num_chars) >= 2) {
5496 if (s[num_chars] != 0)
5501 gst_value_set_fraction (dest, num, den);
5503 } else if (g_ascii_strcasecmp (s, "1/max") == 0) {
5504 gst_value_set_fraction (dest, 1, G_MAXINT);
5506 } else if (sscanf (s, "%d%n", &num, &num_chars) >= 1) {
5507 if (s[num_chars] != 0)
5509 gst_value_set_fraction (dest, num, 1);
5511 } else if (g_ascii_strcasecmp (s, "min") == 0) {
5512 gst_value_set_fraction (dest, -G_MAXINT, 1);
5514 } else if (g_ascii_strcasecmp (s, "max") == 0) {
5515 gst_value_set_fraction (dest, G_MAXINT, 1);
5523 gst_value_transform_fraction_string (const GValue * src_value,
5524 GValue * dest_value)
5526 dest_value->data[0].v_pointer = gst_value_serialize_fraction (src_value);
5530 gst_value_transform_string_fraction (const GValue * src_value,
5531 GValue * dest_value)
5533 if (!gst_value_deserialize_fraction (dest_value,
5534 src_value->data[0].v_pointer))
5535 /* If the deserialize fails, ensure we leave the fraction in a
5536 * valid, if incorrect, state */
5537 gst_value_set_fraction (dest_value, 0, 1);
5541 gst_value_transform_double_fraction (const GValue * src_value,
5542 GValue * dest_value)
5544 gdouble src = g_value_get_double (src_value);
5547 gst_util_double_to_fraction (src, &n, &d);
5548 gst_value_set_fraction (dest_value, n, d);
5552 gst_value_transform_float_fraction (const GValue * src_value,
5553 GValue * dest_value)
5555 gfloat src = g_value_get_float (src_value);
5558 gst_util_double_to_fraction (src, &n, &d);
5559 gst_value_set_fraction (dest_value, n, d);
5563 gst_value_transform_fraction_double (const GValue * src_value,
5564 GValue * dest_value)
5566 dest_value->data[0].v_double = ((double) src_value->data[0].v_int) /
5567 ((double) src_value->data[1].v_int);
5571 gst_value_transform_fraction_float (const GValue * src_value,
5572 GValue * dest_value)
5574 dest_value->data[0].v_float = ((float) src_value->data[0].v_int) /
5575 ((float) src_value->data[1].v_int);
5579 gst_value_compare_fraction (const GValue * value1, const GValue * value2)
5585 n1 = value1->data[0].v_int;
5586 n2 = value2->data[0].v_int;
5587 d1 = value1->data[1].v_int;
5588 d2 = value2->data[1].v_int;
5590 /* fractions are reduced when set, so we can quickly see if they're equal */
5591 if (n1 == n2 && d1 == d2)
5592 return GST_VALUE_EQUAL;
5594 if (d1 == 0 && d2 == 0)
5595 return GST_VALUE_UNORDERED;
5597 return GST_VALUE_GREATER_THAN;
5599 return GST_VALUE_LESS_THAN;
5601 ret = gst_util_fraction_compare (n1, d1, n2, d2);
5603 return GST_VALUE_LESS_THAN;
5605 return GST_VALUE_GREATER_THAN;
5607 /* Equality can't happen here because we check for that
5609 g_return_val_if_reached (GST_VALUE_UNORDERED);
5617 gst_value_compare_date (const GValue * value1, const GValue * value2)
5619 const GDate *date1 = (const GDate *) g_value_get_boxed (value1);
5620 const GDate *date2 = (const GDate *) g_value_get_boxed (value2);
5624 return GST_VALUE_EQUAL;
5626 if ((date1 == NULL || !g_date_valid (date1))
5627 && (date2 != NULL && g_date_valid (date2))) {
5628 return GST_VALUE_LESS_THAN;
5631 if ((date2 == NULL || !g_date_valid (date2))
5632 && (date1 != NULL && g_date_valid (date1))) {
5633 return GST_VALUE_GREATER_THAN;
5636 if (date1 == NULL || date2 == NULL || !g_date_valid (date1)
5637 || !g_date_valid (date2)) {
5638 return GST_VALUE_UNORDERED;
5641 j1 = g_date_get_julian (date1);
5642 j2 = g_date_get_julian (date2);
5645 return GST_VALUE_EQUAL;
5647 return GST_VALUE_LESS_THAN;
5649 return GST_VALUE_GREATER_THAN;
5653 gst_value_serialize_date (const GValue * val)
5655 const GDate *date = (const GDate *) g_value_get_boxed (val);
5657 if (date == NULL || !g_date_valid (date))
5658 return g_strdup ("9999-99-99");
5660 return g_strdup_printf ("%04u-%02u-%02u", g_date_get_year (date),
5661 g_date_get_month (date), g_date_get_day (date));
5665 gst_value_deserialize_date (GValue * dest, const gchar * s)
5667 guint year, month, day;
5669 if (!s || sscanf (s, "%04u-%02u-%02u", &year, &month, &day) != 3)
5672 if (!g_date_valid_dmy (day, month, year))
5675 g_value_take_boxed (dest, g_date_new_dmy (day, month, year));
5684 gst_value_compare_date_time (const GValue * value1, const GValue * value2)
5686 const GstDateTime *date1 = (const GstDateTime *) g_value_get_boxed (value1);
5687 const GstDateTime *date2 = (const GstDateTime *) g_value_get_boxed (value2);
5690 return GST_VALUE_EQUAL;
5692 if ((date1 == NULL) && (date2 != NULL)) {
5693 return GST_VALUE_LESS_THAN;
5695 if ((date2 == NULL) && (date1 != NULL)) {
5696 return GST_VALUE_LESS_THAN;
5699 /* returns GST_VALUE_* */
5700 return __gst_date_time_compare (date1, date2);
5704 gst_value_serialize_date_time (const GValue * val)
5706 GstDateTime *date = (GstDateTime *) g_value_get_boxed (val);
5709 return g_strdup ("null");
5711 return __gst_date_time_serialize (date, TRUE);
5715 gst_value_deserialize_date_time (GValue * dest, const gchar * s)
5717 GstDateTime *datetime;
5719 if (!s || strcmp (s, "null") == 0) {
5723 datetime = gst_date_time_new_from_iso8601_string (s);
5724 if (datetime != NULL) {
5725 g_value_take_boxed (dest, datetime);
5728 GST_WARNING ("Failed to deserialize date time string '%s'", s);
5733 gst_value_transform_date_string (const GValue * src_value, GValue * dest_value)
5735 dest_value->data[0].v_pointer = gst_value_serialize_date (src_value);
5739 gst_value_transform_string_date (const GValue * src_value, GValue * dest_value)
5741 gst_value_deserialize_date (dest_value, src_value->data[0].v_pointer);
5749 /* helper functions */
5751 gst_value_init_bitmask (GValue * value)
5753 value->data[0].v_uint64 = 0;
5757 gst_value_copy_bitmask (const GValue * src_value, GValue * dest_value)
5759 dest_value->data[0].v_uint64 = src_value->data[0].v_uint64;
5763 gst_value_collect_bitmask (GValue * value, guint n_collect_values,
5764 GTypeCValue * collect_values, guint collect_flags)
5766 if (n_collect_values != 1)
5767 return g_strdup_printf ("not enough value locations for `%s' passed",
5768 G_VALUE_TYPE_NAME (value));
5770 gst_value_set_bitmask (value, (guint64) collect_values[0].v_int64);
5776 gst_value_lcopy_bitmask (const GValue * value, guint n_collect_values,
5777 GTypeCValue * collect_values, guint collect_flags)
5779 guint64 *bitmask = collect_values[0].v_pointer;
5782 return g_strdup_printf ("value for `%s' passed as NULL",
5783 G_VALUE_TYPE_NAME (value));
5785 *bitmask = value->data[0].v_uint64;
5791 * gst_value_set_bitmask:
5792 * @value: a GValue initialized to #GST_TYPE_BITMASK
5793 * @bitmask: the bitmask
5795 * Sets @value to the bitmask specified by @bitmask.
5798 gst_value_set_bitmask (GValue * value, guint64 bitmask)
5800 g_return_if_fail (GST_VALUE_HOLDS_BITMASK (value));
5802 value->data[0].v_uint64 = bitmask;
5806 * gst_value_get_bitmask:
5807 * @value: a GValue initialized to #GST_TYPE_BITMASK
5809 * Gets the bitmask specified by @value.
5811 * Returns: the bitmask.
5814 gst_value_get_bitmask (const GValue * value)
5816 g_return_val_if_fail (GST_VALUE_HOLDS_BITMASK (value), 0);
5818 return value->data[0].v_uint64;
5822 gst_value_serialize_bitmask (const GValue * value)
5824 guint64 bitmask = value->data[0].v_uint64;
5826 return g_strdup_printf ("0x%016" G_GINT64_MODIFIER "x", bitmask);
5830 gst_value_deserialize_bitmask (GValue * dest, const gchar * s)
5832 gchar *endptr = NULL;
5835 if (G_UNLIKELY (s == NULL))
5838 if (G_UNLIKELY (dest == NULL || !GST_VALUE_HOLDS_BITMASK (dest)))
5841 val = g_ascii_strtoull (s, &endptr, 16);
5842 if (val == G_MAXUINT64 && (errno == ERANGE || errno == EINVAL))
5844 if (val == 0 && endptr == s)
5847 gst_value_set_bitmask (dest, val);
5853 gst_value_transform_bitmask_string (const GValue * src_value,
5854 GValue * dest_value)
5856 dest_value->data[0].v_pointer = gst_value_serialize_bitmask (src_value);
5860 gst_value_transform_string_bitmask (const GValue * src_value,
5861 GValue * dest_value)
5863 if (!gst_value_deserialize_bitmask (dest_value, src_value->data[0].v_pointer))
5864 gst_value_set_bitmask (dest_value, 0);
5868 gst_value_transform_uint64_bitmask (const GValue * src_value,
5869 GValue * dest_value)
5871 dest_value->data[0].v_uint64 = src_value->data[0].v_uint64;
5875 gst_value_transform_bitmask_uint64 (const GValue * src_value,
5876 GValue * dest_value)
5878 dest_value->data[0].v_uint64 = src_value->data[0].v_uint64;
5882 gst_value_compare_bitmask (const GValue * value1, const GValue * value2)
5886 v1 = value1->data[0].v_uint64;
5887 v2 = value2->data[0].v_uint64;
5890 return GST_VALUE_EQUAL;
5892 return GST_VALUE_UNORDERED;
5896 /***********************
5897 * GstAllocationParams *
5898 ***********************/
5900 gst_value_compare_allocation_params (const GValue * value1,
5901 const GValue * value2)
5903 GstAllocationParams *v1, *v2;
5905 v1 = value1->data[0].v_pointer;
5906 v2 = value2->data[0].v_pointer;
5908 if (v1 == NULL && v1 == v2)
5909 return GST_VALUE_EQUAL;
5911 if (v1 == NULL || v2 == NULL)
5912 return GST_VALUE_UNORDERED;
5914 if (v1->flags == v2->flags && v1->align == v2->align &&
5915 v1->prefix == v2->prefix && v1->padding == v2->padding)
5916 return GST_VALUE_EQUAL;
5918 return GST_VALUE_UNORDERED;
5927 gst_value_compare_object (const GValue * value1, const GValue * value2)
5931 v1 = value1->data[0].v_pointer;
5932 v2 = value2->data[0].v_pointer;
5935 return GST_VALUE_EQUAL;
5937 return GST_VALUE_UNORDERED;
5941 gst_value_transform_object_string (const GValue * src_value,
5942 GValue * dest_value)
5947 obj = g_value_get_object (src_value);
5950 g_strdup_printf ("(%s) %s", G_OBJECT_TYPE_NAME (obj),
5951 GST_OBJECT_NAME (obj));
5953 str = g_strdup ("NULL");
5956 dest_value->data[0].v_pointer = str;
5959 static GTypeInfo _info = {
5972 static GTypeFundamentalInfo _finfo = {
5976 #define FUNC_VALUE_GET_TYPE(type, name) \
5977 GType _gst_ ## type ## _type = 0; \
5979 GType gst_ ## type ## _get_type (void) \
5981 static volatile GType gst_ ## type ## _type = 0; \
5983 if (g_once_init_enter (&gst_ ## type ## _type)) { \
5985 _info.value_table = & _gst_ ## type ## _value_table; \
5986 _type = g_type_register_fundamental ( \
5987 g_type_fundamental_next (), \
5988 name, &_info, &_finfo, 0); \
5989 _gst_ ## type ## _type = _type; \
5990 g_once_init_leave(&gst_ ## type ## _type, _type); \
5993 return gst_ ## type ## _type; \
5996 static const GTypeValueTable _gst_int_range_value_table = {
5997 gst_value_init_int_range,
5999 gst_value_copy_int_range,
6002 gst_value_collect_int_range,
6004 gst_value_lcopy_int_range
6007 FUNC_VALUE_GET_TYPE (int_range, "GstIntRange");
6009 static const GTypeValueTable _gst_int64_range_value_table = {
6010 gst_value_init_int64_range,
6011 gst_value_free_int64_range,
6012 gst_value_copy_int64_range,
6015 gst_value_collect_int64_range,
6017 gst_value_lcopy_int64_range
6020 FUNC_VALUE_GET_TYPE (int64_range, "GstInt64Range");
6022 static const GTypeValueTable _gst_double_range_value_table = {
6023 gst_value_init_double_range,
6025 gst_value_copy_double_range,
6028 gst_value_collect_double_range,
6030 gst_value_lcopy_double_range
6033 FUNC_VALUE_GET_TYPE (double_range, "GstDoubleRange");
6035 static const GTypeValueTable _gst_fraction_range_value_table = {
6036 gst_value_init_fraction_range,
6037 gst_value_free_fraction_range,
6038 gst_value_copy_fraction_range,
6041 gst_value_collect_fraction_range,
6043 gst_value_lcopy_fraction_range
6046 FUNC_VALUE_GET_TYPE (fraction_range, "GstFractionRange");
6048 static const GTypeValueTable _gst_value_list_value_table = {
6049 gst_value_init_list_or_array,
6050 gst_value_free_list_or_array,
6051 gst_value_copy_list_or_array,
6052 gst_value_list_or_array_peek_pointer,
6054 gst_value_collect_list_or_array,
6056 gst_value_lcopy_list_or_array
6059 FUNC_VALUE_GET_TYPE (value_list, "GstValueList");
6061 static const GTypeValueTable _gst_value_array_value_table = {
6062 gst_value_init_list_or_array,
6063 gst_value_free_list_or_array,
6064 gst_value_copy_list_or_array,
6065 gst_value_list_or_array_peek_pointer,
6067 gst_value_collect_list_or_array,
6069 gst_value_lcopy_list_or_array
6072 FUNC_VALUE_GET_TYPE (value_array, "GstValueArray");
6074 static const GTypeValueTable _gst_fraction_value_table = {
6075 gst_value_init_fraction,
6077 gst_value_copy_fraction,
6080 gst_value_collect_fraction,
6082 gst_value_lcopy_fraction
6085 FUNC_VALUE_GET_TYPE (fraction, "GstFraction");
6087 static const GTypeValueTable _gst_bitmask_value_table = {
6088 gst_value_init_bitmask,
6090 gst_value_copy_bitmask,
6093 gst_value_collect_bitmask,
6095 gst_value_lcopy_bitmask
6098 FUNC_VALUE_GET_TYPE (bitmask, "GstBitmask");
6101 gst_g_thread_get_type (void)
6103 #if GLIB_CHECK_VERSION(2,35,3)
6104 return G_TYPE_THREAD;
6106 static volatile gsize type_id = 0;
6108 if (g_once_init_enter (&type_id)) {
6110 g_boxed_type_register_static (g_intern_static_string ("GstGThread"),
6111 (GBoxedCopyFunc) g_thread_ref,
6112 (GBoxedFreeFunc) g_thread_unref);
6113 g_once_init_leave (&type_id, tmp);
6121 _priv_gst_value_initialize (void)
6123 gst_value_table = g_array_new (FALSE, FALSE, sizeof (GstValueTable));
6124 gst_value_hash = g_hash_table_new (NULL, NULL);
6125 gst_value_union_funcs = g_array_new (FALSE, FALSE,
6126 sizeof (GstValueUnionInfo));
6127 gst_value_intersect_funcs = g_array_new (FALSE, FALSE,
6128 sizeof (GstValueIntersectInfo));
6129 gst_value_subtract_funcs = g_array_new (FALSE, FALSE,
6130 sizeof (GstValueSubtractInfo));
6133 static GstValueTable gst_value = {
6135 gst_value_compare_int_range,
6136 gst_value_serialize_int_range,
6137 gst_value_deserialize_int_range,
6140 gst_value.type = gst_int_range_get_type ();
6141 gst_value_register (&gst_value);
6145 static GstValueTable gst_value = {
6147 gst_value_compare_int64_range,
6148 gst_value_serialize_int64_range,
6149 gst_value_deserialize_int64_range,
6152 gst_value.type = gst_int64_range_get_type ();
6153 gst_value_register (&gst_value);
6157 static GstValueTable gst_value = {
6159 gst_value_compare_double_range,
6160 gst_value_serialize_double_range,
6161 gst_value_deserialize_double_range,
6164 gst_value.type = gst_double_range_get_type ();
6165 gst_value_register (&gst_value);
6169 static GstValueTable gst_value = {
6171 gst_value_compare_fraction_range,
6172 gst_value_serialize_fraction_range,
6173 gst_value_deserialize_fraction_range,
6176 gst_value.type = gst_fraction_range_get_type ();
6177 gst_value_register (&gst_value);
6181 static GstValueTable gst_value = {
6183 gst_value_compare_list,
6184 gst_value_serialize_list,
6185 gst_value_deserialize_list,
6188 gst_value.type = gst_value_list_get_type ();
6189 gst_value_register (&gst_value);
6193 static GstValueTable gst_value = {
6195 gst_value_compare_array,
6196 gst_value_serialize_array,
6197 gst_value_deserialize_array,
6200 gst_value.type = gst_value_array_get_type ();
6201 gst_value_register (&gst_value);
6206 static const GTypeValueTable value_table = {
6207 gst_value_init_buffer,
6209 gst_value_copy_buffer,
6212 NULL, /*gst_value_collect_buffer, */
6214 NULL /*gst_value_lcopy_buffer */
6217 static GstValueTable gst_value = {
6219 gst_value_compare_buffer,
6220 gst_value_serialize_buffer,
6221 gst_value_deserialize_buffer,
6224 gst_value.type = GST_TYPE_BUFFER;
6225 gst_value_register (&gst_value);
6228 static GstValueTable gst_value = {
6230 gst_value_compare_sample,
6231 gst_value_serialize_sample,
6232 gst_value_deserialize_sample,
6235 gst_value.type = GST_TYPE_SAMPLE;
6236 gst_value_register (&gst_value);
6239 static GstValueTable gst_value = {
6241 gst_value_compare_fraction,
6242 gst_value_serialize_fraction,
6243 gst_value_deserialize_fraction,
6246 gst_value.type = gst_fraction_get_type ();
6247 gst_value_register (&gst_value);
6250 static GstValueTable gst_value = {
6252 gst_value_compare_caps,
6253 gst_value_serialize_caps,
6254 gst_value_deserialize_caps,
6257 gst_value.type = GST_TYPE_CAPS;
6258 gst_value_register (&gst_value);
6261 static GstValueTable gst_value = {
6264 gst_value_serialize_segment,
6265 gst_value_deserialize_segment,
6268 gst_value.type = GST_TYPE_SEGMENT;
6269 gst_value_register (&gst_value);
6272 static GstValueTable gst_value = {
6275 gst_value_serialize_structure,
6276 gst_value_deserialize_structure,
6279 gst_value.type = GST_TYPE_STRUCTURE;
6280 gst_value_register (&gst_value);
6283 static GstValueTable gst_value = {
6286 gst_value_serialize_caps_features,
6287 gst_value_deserialize_caps_features,
6290 gst_value.type = GST_TYPE_CAPS_FEATURES;
6291 gst_value_register (&gst_value);
6294 static GstValueTable gst_value = {
6297 gst_value_serialize_tag_list,
6298 gst_value_deserialize_tag_list,
6301 gst_value.type = GST_TYPE_TAG_LIST;
6302 gst_value_register (&gst_value);
6305 static GstValueTable gst_value = {
6307 gst_value_compare_date,
6308 gst_value_serialize_date,
6309 gst_value_deserialize_date,
6312 gst_value.type = G_TYPE_DATE;
6313 gst_value_register (&gst_value);
6316 static GstValueTable gst_value = {
6318 gst_value_compare_date_time,
6319 gst_value_serialize_date_time,
6320 gst_value_deserialize_date_time,
6323 gst_value.type = gst_date_time_get_type ();
6324 gst_value_register (&gst_value);
6328 static GstValueTable gst_value = {
6330 gst_value_compare_bitmask,
6331 gst_value_serialize_bitmask,
6332 gst_value_deserialize_bitmask,
6335 gst_value.type = gst_bitmask_get_type ();
6336 gst_value_register (&gst_value);
6340 static GstValueTable gst_value = {
6342 gst_value_compare_allocation_params,
6347 gst_value.type = gst_allocation_params_get_type ();
6348 gst_value_register (&gst_value);
6352 static GstValueTable gst_value = {
6354 gst_value_compare_object,
6359 gst_value.type = G_TYPE_OBJECT;
6360 gst_value_register (&gst_value);
6363 REGISTER_SERIALIZATION (G_TYPE_DOUBLE, double);
6364 REGISTER_SERIALIZATION (G_TYPE_FLOAT, float);
6366 REGISTER_SERIALIZATION (G_TYPE_STRING, string);
6367 REGISTER_SERIALIZATION (G_TYPE_BOOLEAN, boolean);
6368 REGISTER_SERIALIZATION (G_TYPE_ENUM, enum);
6370 REGISTER_SERIALIZATION (G_TYPE_FLAGS, flags);
6372 REGISTER_SERIALIZATION (G_TYPE_INT, int);
6374 REGISTER_SERIALIZATION (G_TYPE_INT64, int64);
6375 REGISTER_SERIALIZATION (G_TYPE_LONG, long);
6377 REGISTER_SERIALIZATION (G_TYPE_UINT, uint);
6378 REGISTER_SERIALIZATION (G_TYPE_UINT64, uint64);
6379 REGISTER_SERIALIZATION (G_TYPE_ULONG, ulong);
6381 REGISTER_SERIALIZATION (G_TYPE_UCHAR, uchar);
6383 g_value_register_transform_func (GST_TYPE_INT_RANGE, G_TYPE_STRING,
6384 gst_value_transform_int_range_string);
6385 g_value_register_transform_func (GST_TYPE_INT64_RANGE, G_TYPE_STRING,
6386 gst_value_transform_int64_range_string);
6387 g_value_register_transform_func (GST_TYPE_DOUBLE_RANGE, G_TYPE_STRING,
6388 gst_value_transform_double_range_string);
6389 g_value_register_transform_func (GST_TYPE_FRACTION_RANGE, G_TYPE_STRING,
6390 gst_value_transform_fraction_range_string);
6391 g_value_register_transform_func (GST_TYPE_LIST, G_TYPE_STRING,
6392 gst_value_transform_list_string);
6393 g_value_register_transform_func (GST_TYPE_ARRAY, G_TYPE_STRING,
6394 gst_value_transform_array_string);
6395 g_value_register_transform_func (GST_TYPE_FRACTION, G_TYPE_STRING,
6396 gst_value_transform_fraction_string);
6397 g_value_register_transform_func (G_TYPE_STRING, GST_TYPE_FRACTION,
6398 gst_value_transform_string_fraction);
6399 g_value_register_transform_func (GST_TYPE_FRACTION, G_TYPE_DOUBLE,
6400 gst_value_transform_fraction_double);
6401 g_value_register_transform_func (GST_TYPE_FRACTION, G_TYPE_FLOAT,
6402 gst_value_transform_fraction_float);
6403 g_value_register_transform_func (G_TYPE_DOUBLE, GST_TYPE_FRACTION,
6404 gst_value_transform_double_fraction);
6405 g_value_register_transform_func (G_TYPE_FLOAT, GST_TYPE_FRACTION,
6406 gst_value_transform_float_fraction);
6407 g_value_register_transform_func (G_TYPE_DATE, G_TYPE_STRING,
6408 gst_value_transform_date_string);
6409 g_value_register_transform_func (G_TYPE_STRING, G_TYPE_DATE,
6410 gst_value_transform_string_date);
6411 g_value_register_transform_func (GST_TYPE_OBJECT, G_TYPE_STRING,
6412 gst_value_transform_object_string);
6413 g_value_register_transform_func (GST_TYPE_BITMASK, G_TYPE_UINT64,
6414 gst_value_transform_bitmask_uint64);
6415 g_value_register_transform_func (GST_TYPE_BITMASK, G_TYPE_STRING,
6416 gst_value_transform_bitmask_string);
6417 g_value_register_transform_func (G_TYPE_UINT64, GST_TYPE_BITMASK,
6418 gst_value_transform_uint64_bitmask);
6419 g_value_register_transform_func (G_TYPE_STRING, GST_TYPE_BITMASK,
6420 gst_value_transform_string_bitmask);
6422 gst_value_register_intersect_func (G_TYPE_INT, GST_TYPE_INT_RANGE,
6423 gst_value_intersect_int_int_range);
6424 gst_value_register_intersect_func (GST_TYPE_INT_RANGE, GST_TYPE_INT_RANGE,
6425 gst_value_intersect_int_range_int_range);
6426 gst_value_register_intersect_func (G_TYPE_INT64, GST_TYPE_INT64_RANGE,
6427 gst_value_intersect_int64_int64_range);
6428 gst_value_register_intersect_func (GST_TYPE_INT64_RANGE, GST_TYPE_INT64_RANGE,
6429 gst_value_intersect_int64_range_int64_range);
6430 gst_value_register_intersect_func (G_TYPE_DOUBLE, GST_TYPE_DOUBLE_RANGE,
6431 gst_value_intersect_double_double_range);
6432 gst_value_register_intersect_func (GST_TYPE_DOUBLE_RANGE,
6433 GST_TYPE_DOUBLE_RANGE, gst_value_intersect_double_range_double_range);
6434 gst_value_register_intersect_func (GST_TYPE_ARRAY,
6435 GST_TYPE_ARRAY, gst_value_intersect_array);
6436 gst_value_register_intersect_func (GST_TYPE_FRACTION, GST_TYPE_FRACTION_RANGE,
6437 gst_value_intersect_fraction_fraction_range);
6438 gst_value_register_intersect_func (GST_TYPE_FRACTION_RANGE,
6439 GST_TYPE_FRACTION_RANGE,
6440 gst_value_intersect_fraction_range_fraction_range);
6442 gst_value_register_subtract_func (G_TYPE_INT, GST_TYPE_INT_RANGE,
6443 gst_value_subtract_int_int_range);
6444 gst_value_register_subtract_func (GST_TYPE_INT_RANGE, G_TYPE_INT,
6445 gst_value_subtract_int_range_int);
6446 gst_value_register_subtract_func (GST_TYPE_INT_RANGE, GST_TYPE_INT_RANGE,
6447 gst_value_subtract_int_range_int_range);
6448 gst_value_register_subtract_func (G_TYPE_INT64, GST_TYPE_INT64_RANGE,
6449 gst_value_subtract_int64_int64_range);
6450 gst_value_register_subtract_func (GST_TYPE_INT64_RANGE, G_TYPE_INT64,
6451 gst_value_subtract_int64_range_int64);
6452 gst_value_register_subtract_func (GST_TYPE_INT64_RANGE, GST_TYPE_INT64_RANGE,
6453 gst_value_subtract_int64_range_int64_range);
6454 gst_value_register_subtract_func (G_TYPE_DOUBLE, GST_TYPE_DOUBLE_RANGE,
6455 gst_value_subtract_double_double_range);
6456 gst_value_register_subtract_func (GST_TYPE_DOUBLE_RANGE, G_TYPE_DOUBLE,
6457 gst_value_subtract_double_range_double);
6458 gst_value_register_subtract_func (GST_TYPE_DOUBLE_RANGE,
6459 GST_TYPE_DOUBLE_RANGE, gst_value_subtract_double_range_double_range);
6460 gst_value_register_subtract_func (GST_TYPE_FRACTION, GST_TYPE_FRACTION_RANGE,
6461 gst_value_subtract_fraction_fraction_range);
6462 gst_value_register_subtract_func (GST_TYPE_FRACTION_RANGE, GST_TYPE_FRACTION,
6463 gst_value_subtract_fraction_range_fraction);
6464 gst_value_register_subtract_func (GST_TYPE_FRACTION_RANGE,
6465 GST_TYPE_FRACTION_RANGE,
6466 gst_value_subtract_fraction_range_fraction_range);
6468 /* see bug #317246, #64994, #65041 */
6470 volatile GType date_type = G_TYPE_DATE;
6472 g_type_name (date_type);
6475 gst_value_register_union_func (G_TYPE_INT, GST_TYPE_INT_RANGE,
6476 gst_value_union_int_int_range);
6477 gst_value_register_union_func (GST_TYPE_INT_RANGE, GST_TYPE_INT_RANGE,
6478 gst_value_union_int_range_int_range);
6481 /* Implement these if needed */
6482 gst_value_register_union_func (GST_TYPE_FRACTION, GST_TYPE_FRACTION_RANGE,
6483 gst_value_union_fraction_fraction_range);
6484 gst_value_register_union_func (GST_TYPE_FRACTION_RANGE,
6485 GST_TYPE_FRACTION_RANGE, gst_value_union_fraction_range_fraction_range);