mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
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fca3e1d85d
Do not use dynamic types anymore. The reason is that it's difficult: - to maintain a shared type database over a network. - the extra overhead when translating between processes and for maintaining the translation tables. - race conditions in translating in RT-threads, this is a problem because we want to make event streams. We now have simple enums with types and extension points for all types. This is also nicer to use in general. We don't need the mapper anymore or pass strings around as types. There is a parallel type info system to get more info about ids and enums and their hierarchy. It can also be used for debugging.
118 lines
3.2 KiB
C
118 lines
3.2 KiB
C
/* Spa
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* Copyright (C) 2017 Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <spa/support/log-impl.h>
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#include <spa/pod/pod.h>
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#include <spa/pod/builder.h>
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#include <spa/pod/parser.h>
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#include <spa/param/video/format.h>
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#include <spa/debug/pod.h>
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#include <spa/debug/types.h>
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int main(int argc, char *argv[])
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{
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struct spa_pod_builder b = { NULL, };
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uint8_t buffer[1024];
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uint32_t ref;
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struct spa_pod *obj;
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struct spa_pod_parser prs;
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b.data = buffer;
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b.size = 1024;
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spa_pod_builder_push_object(&b, 0, 0);
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uint32_t formats[] = { 1, 2 };
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spa_pod_builder_push_prop(&b, 1, SPA_POD_PROP_RANGE_ENUM);
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spa_pod_builder_int(&b, 1);
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spa_pod_builder_int(&b, formats[0]);
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spa_pod_builder_int(&b, formats[1]);
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spa_pod_builder_pop(&b);
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spa_pod_builder_push_prop(&b, 2, 0);
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spa_pod_builder_int(&b, 42);
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spa_pod_builder_pop(&b);
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struct spa_rectangle sizes[] = { {0, 0}, {1024, 1024} };
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spa_pod_builder_push_prop(&b,
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3, SPA_POD_PROP_RANGE_MIN_MAX | SPA_POD_PROP_FLAG_UNSET);
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spa_pod_builder_rectangle(&b, 320, 240);
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spa_pod_builder_raw(&b, sizes, sizeof(sizes));
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spa_pod_builder_pop(&b);
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spa_pod_builder_push_prop(&b, 4, SPA_POD_PROP_FLAG_READONLY);
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ref = spa_pod_builder_push_struct(&b);
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spa_pod_builder_int(&b, 4);
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spa_pod_builder_long(&b, 6000);
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spa_pod_builder_float(&b, 4.0);
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spa_pod_builder_double(&b, 3.14);
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spa_pod_builder_string(&b, "test123");
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spa_pod_builder_rectangle(&b, 320, 240);
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spa_pod_builder_fraction(&b, 25, 1);
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spa_pod_builder_push_array(&b);
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spa_pod_builder_int(&b, 4);
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spa_pod_builder_int(&b, 5);
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spa_pod_builder_int(&b, 6);
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spa_pod_builder_pop(&b);
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spa_pod_builder_pop(&b);
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spa_pod_builder_pop(&b);
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obj = spa_pod_builder_pop(&b);
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spa_debug_pod(0, spa_debug_types, obj);
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struct spa_pod_prop *p = spa_pod_find_prop(obj, 4);
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printf("%d %d\n", p->body.key, p->body.flags);
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spa_debug_pod(0, spa_debug_types, &p->body.value);
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obj = spa_pod_builder_deref(&b, ref);
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int32_t vi, *pi;
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int64_t vl;
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float vf;
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double vd;
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char *vs;
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struct spa_rectangle vr;
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struct spa_fraction vfr;
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struct spa_pod_array *va;
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spa_pod_parser_pod(&prs, obj);
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spa_pod_parser_get(&prs,
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"["
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"i", &vi,
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"l", &vl,
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"f", &vf,
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"d", &vd,
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"s", &vs,
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"R", &vr,
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"F", &vfr,
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"P", &va, 0);
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printf("%u %lu %f %g %s %ux%u %u/%u\n", vi, vl, vf, vd, vs, vr.width, vr.height, vfr.num,
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vfr.denom);
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SPA_POD_ARRAY_BODY_FOREACH(&va->body, SPA_POD_BODY_SIZE(va), pi) {
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printf("%d\n", *pi);
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}
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return 0;
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}
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