gst/gstvalue.c: Add some union implementations. We didn't have any previously.

Original commit message from CVS:
* gst/gstvalue.c: (gst_value_union_int_int_range),
(gst_value_union_int_range_int_range), (gst_value_can_union),
(gst_value_union), (_gst_value_initialize):  Add some union
implementations.  We didn't have any previously.
* testsuite/caps/Makefile.am:
* testsuite/caps/audioscale.c: (gst_audioscale_expand_value),
(gst_audioscale_getcaps), (test_caps), (main): A little test
that is the same as the caps manipulation in audioscale.
This commit is contained in:
David Schleef 2004-03-31 21:49:19 +00:00
parent e38802a565
commit e6a6307944
6 changed files with 420 additions and 3 deletions

View file

@ -1,3 +1,14 @@
2004-03-31 David Schleef <ds@schleef.org>
* gst/gstvalue.c: (gst_value_union_int_int_range),
(gst_value_union_int_range_int_range), (gst_value_can_union),
(gst_value_union), (_gst_value_initialize): Add some union
implementations. We didn't have any previously.
* testsuite/caps/Makefile.am:
* testsuite/caps/audioscale.c: (gst_audioscale_expand_value),
(gst_audioscale_getcaps), (test_caps), (main): A little test
that is the same as the caps manipulation in audioscale.
2004-03-30 Benjamin Otte <in7y118@public.uni-hamburg.de>
* docs/faq/general.xml:

View file

@ -1009,6 +1009,46 @@ gst_value_deserialize_string (GValue * dest, const char *s)
/*************************************/
/* unions */
static gboolean
gst_value_union_int_int_range (GValue * dest, const GValue * src1,
const GValue * src2)
{
g_return_val_if_fail (G_VALUE_TYPE (src1) == G_TYPE_INT, FALSE);
g_return_val_if_fail (G_VALUE_TYPE (src2) == GST_TYPE_INT_RANGE, FALSE);
if (src2->data[0].v_int <= src1->data[0].v_int &&
src2->data[1].v_int >= src1->data[0].v_int) {
gst_value_init_and_copy (dest, src2);
return TRUE;
}
return FALSE;
}
static gboolean
gst_value_union_int_range_int_range (GValue * dest, const GValue * src1,
const GValue * src2)
{
int min;
int max;
g_return_val_if_fail (G_VALUE_TYPE (src1) == GST_TYPE_INT_RANGE, FALSE);
g_return_val_if_fail (G_VALUE_TYPE (src2) == GST_TYPE_INT_RANGE, FALSE);
min = MAX (src1->data[0].v_int, src2->data[0].v_int);
max = MIN (src1->data[1].v_int, src2->data[1].v_int);
if (min <= max) {
g_value_init (dest, GST_TYPE_INT_RANGE);
gst_value_set_int_range (dest,
MIN (src1->data[0].v_int, src2->data[0].v_int),
MAX (src1->data[1].v_int, src2->data[1].v_int));
return TRUE;
}
return FALSE;
}
/*************************************/
/* intersection */
@ -1226,6 +1266,9 @@ gst_value_can_union (const GValue * value1, const GValue * value2)
if (union_info->type1 == G_VALUE_TYPE (value1) &&
union_info->type2 == G_VALUE_TYPE (value2))
return TRUE;
if (union_info->type1 == G_VALUE_TYPE (value2) &&
union_info->type2 == G_VALUE_TYPE (value1))
return TRUE;
}
return FALSE;
@ -1251,7 +1294,15 @@ gst_value_union (GValue * dest, const GValue * value1, const GValue * value2)
union_info = &g_array_index (gst_value_union_funcs, GstValueUnionInfo, i);
if (union_info->type1 == G_VALUE_TYPE (value1) &&
union_info->type2 == G_VALUE_TYPE (value2)) {
return union_info->func (dest, value1, value2);
if (union_info->func (dest, value1, value2)) {
return TRUE;
}
}
if (union_info->type1 == G_VALUE_TYPE (value2) &&
union_info->type2 == G_VALUE_TYPE (value1)) {
if (union_info->func (dest, value2, value1)) {
return TRUE;
}
}
}
@ -1641,4 +1692,9 @@ _gst_value_initialize (void)
gst_value_intersect_double_double_range);
gst_value_register_intersect_func (GST_TYPE_DOUBLE_RANGE,
GST_TYPE_DOUBLE_RANGE, gst_value_intersect_double_range_double_range);
gst_value_register_union_func (G_TYPE_INT, GST_TYPE_INT_RANGE,
gst_value_union_int_int_range);
gst_value_register_union_func (GST_TYPE_INT_RANGE, GST_TYPE_INT_RANGE,
gst_value_union_int_range_int_range);
}

View file

@ -12,7 +12,8 @@ tests_pass = \
intersect2 \
caps \
value_compare \
value_intersect
value_intersect \
audioscale
tests_fail =

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@ -0,0 +1,174 @@
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/* Element-Checklist-Version: 5 */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include <math.h>
#include <gst/gst.h>
static void
gst_audioscale_expand_value (GValue * dest, const GValue * src)
{
int rate_min, rate_max;
if (G_VALUE_TYPE (src) == G_TYPE_INT ||
G_VALUE_TYPE (src) == GST_TYPE_INT_RANGE) {
if (G_VALUE_TYPE (src) == G_TYPE_INT) {
rate_min = g_value_get_int (src);
rate_max = rate_min;
} else {
rate_min = gst_value_get_int_range_min (src);
rate_max = gst_value_get_int_range_max (src);
}
rate_min /= 2;
if (rate_min < 1)
rate_min = 1;
if (rate_max < G_MAXINT / 2) {
rate_max *= 2;
} else {
rate_max = G_MAXINT;
}
g_value_init (dest, GST_TYPE_INT_RANGE);
gst_value_set_int_range (dest, rate_min, rate_max);
return;
}
if (G_VALUE_TYPE (src) == GST_TYPE_LIST) {
int i;
g_value_init (dest, GST_TYPE_LIST);
for (i = 0; i < gst_value_list_get_size (src); i++) {
const GValue *s = gst_value_list_get_value (src, i);
GValue d = { 0 };
int j;
gst_audioscale_expand_value (&d, s);
for (j = 0; j < gst_value_list_get_size (dest); j++) {
const GValue *s2 = gst_value_list_get_value (dest, j);
GValue d2 = { 0 };
gst_value_union (&d2, &d, s2);
if (G_VALUE_TYPE (&d2) == GST_TYPE_INT_RANGE) {
g_value_unset ((GValue *) s2);
gst_value_init_and_copy ((GValue *) s2, &d2);
break;
}
g_value_unset (&d2);
}
if (j == gst_value_list_get_size (dest)) {
gst_value_list_append_value (dest, &d);
}
g_value_unset (&d);
}
if (gst_value_list_get_size (dest) == 1) {
const GValue *s = gst_value_list_get_value (dest, 0);
GValue d = { 0 };
gst_value_init_and_copy (&d, s);
g_value_unset (dest);
gst_value_init_and_copy (dest, &d);
g_value_unset (&d);
}
return;
}
GST_ERROR ("unexpected value type");
}
static GstCaps *
gst_audioscale_getcaps (const GstCaps * othercaps)
{
GstCaps *caps;
int i;
caps = gst_caps_copy (othercaps);
/* we do this hack, because the audioscale lib doesn't handle
* rate conversions larger than a factor of 2 */
for (i = 0; i < gst_caps_get_size (caps); i++) {
GstStructure *structure = gst_caps_get_structure (caps, i);
const GValue *value;
GValue dest = { 0 };
value = gst_structure_get_value (structure, "rate");
if (value == NULL) {
GST_ERROR ("caps structure doesn't have required rate field");
return NULL;
}
gst_audioscale_expand_value (&dest, value);
gst_structure_set_value (structure, "rate", &dest);
}
return caps;
}
void
test_caps (const char *s)
{
GstCaps *caps;
GstCaps *caps2;
char *s2;
caps = gst_caps_from_string (s);
caps2 = gst_audioscale_getcaps (caps);
s2 = gst_caps_to_string (caps2);
g_print ("original: %s\nfiltered: %s\n\n", s, s2);
g_free (s2);
gst_caps_free (caps);
gst_caps_free (caps2);
}
int
main (int argc, char *argv[])
{
gst_init (&argc, &argv);
test_caps ("audio/x-raw-int, rate=(int)1");
test_caps ("audio/x-raw-int, rate=(int)10");
test_caps ("audio/x-raw-int, rate=(int)100");
test_caps ("audio/x-raw-int, rate=(int)10000");
test_caps ("audio/x-raw-int, rate=(int)2000000000");
test_caps ("audio/x-raw-int, rate=(int)[1,100]");
test_caps ("audio/x-raw-int, rate=(int)[1000,40000]");
test_caps ("audio/x-raw-int, rate=(int){1,100}");
test_caps ("audio/x-raw-int, rate=(int){100,200,300}");
test_caps ("audio/x-raw-int, rate=(int){[100,200],1000}");
return 0;
}

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@ -12,7 +12,8 @@ tests_pass = \
intersect2 \
caps \
value_compare \
value_intersect
value_intersect \
audioscale
tests_fail =

174
testsuite/caps/audioscale.c Normal file
View file

@ -0,0 +1,174 @@
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/* Element-Checklist-Version: 5 */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include <math.h>
#include <gst/gst.h>
static void
gst_audioscale_expand_value (GValue * dest, const GValue * src)
{
int rate_min, rate_max;
if (G_VALUE_TYPE (src) == G_TYPE_INT ||
G_VALUE_TYPE (src) == GST_TYPE_INT_RANGE) {
if (G_VALUE_TYPE (src) == G_TYPE_INT) {
rate_min = g_value_get_int (src);
rate_max = rate_min;
} else {
rate_min = gst_value_get_int_range_min (src);
rate_max = gst_value_get_int_range_max (src);
}
rate_min /= 2;
if (rate_min < 1)
rate_min = 1;
if (rate_max < G_MAXINT / 2) {
rate_max *= 2;
} else {
rate_max = G_MAXINT;
}
g_value_init (dest, GST_TYPE_INT_RANGE);
gst_value_set_int_range (dest, rate_min, rate_max);
return;
}
if (G_VALUE_TYPE (src) == GST_TYPE_LIST) {
int i;
g_value_init (dest, GST_TYPE_LIST);
for (i = 0; i < gst_value_list_get_size (src); i++) {
const GValue *s = gst_value_list_get_value (src, i);
GValue d = { 0 };
int j;
gst_audioscale_expand_value (&d, s);
for (j = 0; j < gst_value_list_get_size (dest); j++) {
const GValue *s2 = gst_value_list_get_value (dest, j);
GValue d2 = { 0 };
gst_value_union (&d2, &d, s2);
if (G_VALUE_TYPE (&d2) == GST_TYPE_INT_RANGE) {
g_value_unset ((GValue *) s2);
gst_value_init_and_copy ((GValue *) s2, &d2);
break;
}
g_value_unset (&d2);
}
if (j == gst_value_list_get_size (dest)) {
gst_value_list_append_value (dest, &d);
}
g_value_unset (&d);
}
if (gst_value_list_get_size (dest) == 1) {
const GValue *s = gst_value_list_get_value (dest, 0);
GValue d = { 0 };
gst_value_init_and_copy (&d, s);
g_value_unset (dest);
gst_value_init_and_copy (dest, &d);
g_value_unset (&d);
}
return;
}
GST_ERROR ("unexpected value type");
}
static GstCaps *
gst_audioscale_getcaps (const GstCaps * othercaps)
{
GstCaps *caps;
int i;
caps = gst_caps_copy (othercaps);
/* we do this hack, because the audioscale lib doesn't handle
* rate conversions larger than a factor of 2 */
for (i = 0; i < gst_caps_get_size (caps); i++) {
GstStructure *structure = gst_caps_get_structure (caps, i);
const GValue *value;
GValue dest = { 0 };
value = gst_structure_get_value (structure, "rate");
if (value == NULL) {
GST_ERROR ("caps structure doesn't have required rate field");
return NULL;
}
gst_audioscale_expand_value (&dest, value);
gst_structure_set_value (structure, "rate", &dest);
}
return caps;
}
void
test_caps (const char *s)
{
GstCaps *caps;
GstCaps *caps2;
char *s2;
caps = gst_caps_from_string (s);
caps2 = gst_audioscale_getcaps (caps);
s2 = gst_caps_to_string (caps2);
g_print ("original: %s\nfiltered: %s\n\n", s, s2);
g_free (s2);
gst_caps_free (caps);
gst_caps_free (caps2);
}
int
main (int argc, char *argv[])
{
gst_init (&argc, &argv);
test_caps ("audio/x-raw-int, rate=(int)1");
test_caps ("audio/x-raw-int, rate=(int)10");
test_caps ("audio/x-raw-int, rate=(int)100");
test_caps ("audio/x-raw-int, rate=(int)10000");
test_caps ("audio/x-raw-int, rate=(int)2000000000");
test_caps ("audio/x-raw-int, rate=(int)[1,100]");
test_caps ("audio/x-raw-int, rate=(int)[1000,40000]");
test_caps ("audio/x-raw-int, rate=(int){1,100}");
test_caps ("audio/x-raw-int, rate=(int){100,200,300}");
test_caps ("audio/x-raw-int, rate=(int){[100,200],1000}");
return 0;
}