mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-10-29 05:40:27 -04:00
cc842cbdc8
Only allow properties inside objects, this makes it easier to iterate the object, which is needed for efficiently processing control streams. Add a choice type to mark variable properties. SPA_TYPE_Enum -> SPA_TYPE_Id to avoid confusion with choice enum Make it easier to allocate and initialize properties on the stack Make more efficient methods to make objects.
116 lines
3.1 KiB
C
116 lines
3.1 KiB
C
/* Spa
|
|
* Copyright (C) 2017 Wim Taymans <wim.taymans@gmail.com>
|
|
*
|
|
* 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., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
|
|
#include <spa/support/log-impl.h>
|
|
#include <spa/pod/pod.h>
|
|
#include <spa/pod/builder.h>
|
|
#include <spa/pod/parser.h>
|
|
#include <spa/param/video/format.h>
|
|
|
|
#include <spa/debug/pod.h>
|
|
#include <spa/debug/types.h>
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
struct spa_pod_builder b = { NULL, };
|
|
uint8_t buffer[1024];
|
|
uint32_t ref;
|
|
struct spa_pod *obj;
|
|
struct spa_pod_parser prs;
|
|
|
|
b.data = buffer;
|
|
b.size = 1024;
|
|
|
|
spa_pod_builder_push_object(&b, 0, 0);
|
|
|
|
uint32_t formats[] = { 1, 2 };
|
|
spa_pod_builder_prop(&b, 1, 0);
|
|
spa_pod_builder_push_array(&b);
|
|
spa_pod_builder_int(&b, 1);
|
|
spa_pod_builder_int(&b, formats[0]);
|
|
spa_pod_builder_int(&b, formats[1]);
|
|
spa_pod_builder_pop(&b);
|
|
|
|
spa_pod_builder_prop(&b, 2, 0);
|
|
spa_pod_builder_int(&b, 42);
|
|
|
|
struct spa_rectangle sizes[] = { {0, 0}, {1024, 1024} };
|
|
spa_pod_builder_prop(&b, 3, 0);
|
|
spa_pod_builder_push_array(&b);
|
|
spa_pod_builder_rectangle(&b, 320, 240);
|
|
spa_pod_builder_raw(&b, sizes, sizeof(sizes));
|
|
spa_pod_builder_pop(&b);
|
|
|
|
spa_pod_builder_prop(&b, 4, SPA_POD_PROP_FLAG_READONLY);
|
|
ref = spa_pod_builder_push_struct(&b);
|
|
spa_pod_builder_int(&b, 4);
|
|
spa_pod_builder_long(&b, 6000);
|
|
spa_pod_builder_float(&b, 4.0);
|
|
spa_pod_builder_double(&b, 3.14);
|
|
spa_pod_builder_string(&b, "test123");
|
|
spa_pod_builder_rectangle(&b, 320, 240);
|
|
spa_pod_builder_fraction(&b, 25, 1);
|
|
spa_pod_builder_push_array(&b);
|
|
spa_pod_builder_int(&b, 4);
|
|
spa_pod_builder_int(&b, 5);
|
|
spa_pod_builder_int(&b, 6);
|
|
spa_pod_builder_pop(&b);
|
|
spa_pod_builder_pop(&b);
|
|
obj = spa_pod_builder_pop(&b);
|
|
|
|
spa_debug_pod(0, NULL, obj);
|
|
|
|
struct spa_pod_prop *p = spa_pod_find_prop(obj, 4);
|
|
spa_debug_pod(0, NULL, &p->value);
|
|
|
|
obj = spa_pod_builder_deref(&b, ref);
|
|
|
|
int32_t vi, *pi;
|
|
int64_t vl;
|
|
float vf;
|
|
double vd;
|
|
char *vs;
|
|
struct spa_rectangle vr;
|
|
struct spa_fraction vfr;
|
|
struct spa_pod_array *va;
|
|
spa_pod_parser_pod(&prs, obj);
|
|
spa_pod_parser_get(&prs,
|
|
"["
|
|
"i", &vi,
|
|
"l", &vl,
|
|
"f", &vf,
|
|
"d", &vd,
|
|
"s", &vs,
|
|
"R", &vr,
|
|
"F", &vfr,
|
|
"P", &va, 0);
|
|
|
|
printf("%u %lu %f %g %s %ux%u %u/%u\n", vi, vl, vf, vd, vs, vr.width, vr.height, vfr.num,
|
|
vfr.denom);
|
|
SPA_POD_ARRAY_BODY_FOREACH(&va->body, SPA_POD_BODY_SIZE(va), pi) {
|
|
printf("%d\n", *pi);
|
|
}
|
|
return 0;
|
|
}
|