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pipewire/spa/tests/test-props2.c

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Add POD helper objects POD (plain old data) objects are similar to LV2 Atoms and allows storage and construction of datastructures in memory or on the stack. They can be copied with a simple memcpy. The idea is to use this to construct the network messages and to replace the structures used for describing formats and properties.
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/* 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>
Reorganise SPA tree Reorganise the SPA includes to make it more extensible later Simplify the naming of the buffer and meta params
2017-11-10 13:36:14 +01:00
#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>
Debug: remove logger Make a default logger and mapper in a .h file to be used by examples Remove logger and mapper from libs Make method to set the default mapper for the debug methods
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remove spalib
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#include <spa/debug/pod.h>
Remove dynamic types 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.
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#include <spa/debug/types.h>
Add POD helper objects POD (plain old data) objects are similar to LV2 Atoms and allows storage and construction of datastructures in memory or on the stack. They can be copied with a simple memcpy. The idea is to use this to construct the network messages and to replace the structures used for describing formats and properties.
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indent
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int main(int argc, char *argv[])
Add POD helper objects POD (plain old data) objects are similar to LV2 Atoms and allows storage and construction of datastructures in memory or on the stack. They can be copied with a simple memcpy. The idea is to use this to construct the network messages and to replace the structures used for describing formats and properties.
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{
indent
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struct spa_pod_builder b = { NULL, };
uint8_t buffer[1024];
clean up pod_builder Remove the frame argument from the builder, we can use the builder allocated frames. Add deref function to builder to make it more flexible later. Add some more recursion depth checks in the parser. Improve props filter, also filter other types.
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uint32_t ref;
indent
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struct spa_pod *obj;
Add new pod parser and builder Add a new pod builder and parser that is less verbose and a little more powerful.
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struct spa_pod_parser prs;
Debug: remove logger Make a default logger and mapper in a .h file to be used by examples Remove logger and mapper from libs Make method to set the default mapper for the debug methods
2017-06-06 13:30:34 +02:00
indent
2017-05-26 08:05:01 +02:00
b.data = buffer;
b.size = 1024;
clean up pod_builder Remove the frame argument from the builder, we can use the builder allocated frames. Add deref function to builder to make it more flexible later. Add some more recursion depth checks in the parser. Improve props filter, also filter other types.
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spa_pod_builder_push_object(&b, 0, 0);
indent
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uint32_t formats[] = { 1, 2 };
Type changes 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.
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spa_pod_builder_prop(&b, 1, 0);
spa_pod_builder_push_array(&b);
indent
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spa_pod_builder_int(&b, 1);
spa_pod_builder_int(&b, formats[0]);
spa_pod_builder_int(&b, formats[1]);
clean up pod_builder Remove the frame argument from the builder, we can use the builder allocated frames. Add deref function to builder to make it more flexible later. Add some more recursion depth checks in the parser. Improve props filter, also filter other types.
2017-11-08 15:48:31 +01:00
spa_pod_builder_pop(&b);
indent
2017-05-26 08:05:01 +02:00
Type changes 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.
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spa_pod_builder_prop(&b, 2, 0);
indent
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spa_pod_builder_int(&b, 42);
struct spa_rectangle sizes[] = { {0, 0}, {1024, 1024} };
Type changes 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.
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spa_pod_builder_prop(&b, 3, 0);
spa_pod_builder_push_array(&b);
indent
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spa_pod_builder_rectangle(&b, 320, 240);
spa_pod_builder_raw(&b, sizes, sizeof(sizes));
clean up pod_builder Remove the frame argument from the builder, we can use the builder allocated frames. Add deref function to builder to make it more flexible later. Add some more recursion depth checks in the parser. Improve props filter, also filter other types.
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spa_pod_builder_pop(&b);
indent
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remove property flags Remove the property flags, we will add info about properties with the param interface.
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spa_pod_builder_prop(&b, 4, 0);
clean up pod_builder Remove the frame argument from the builder, we can use the builder allocated frames. Add deref function to builder to make it more flexible later. Add some more recursion depth checks in the parser. Improve props filter, also filter other types.
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ref = spa_pod_builder_push_struct(&b);
indent
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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);
clean up pod_builder Remove the frame argument from the builder, we can use the builder allocated frames. Add deref function to builder to make it more flexible later. Add some more recursion depth checks in the parser. Improve props filter, also filter other types.
2017-11-08 15:48:31 +01:00
spa_pod_builder_push_array(&b);
indent
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spa_pod_builder_int(&b, 4);
spa_pod_builder_int(&b, 5);
spa_pod_builder_int(&b, 6);
clean up pod_builder Remove the frame argument from the builder, we can use the builder allocated frames. Add deref function to builder to make it more flexible later. Add some more recursion depth checks in the parser. Improve props filter, also filter other types.
2017-11-08 15:48:31 +01:00
spa_pod_builder_pop(&b);
spa_pod_builder_pop(&b);
builder: make deref safer Don't try to deref objects that did not fit into the memory. Deref now returns the object
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obj = spa_pod_builder_pop(&b);
indent
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debug: allow custom type root
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spa_debug_pod(0, NULL, obj);
indent
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Improve enum_param Add an argument to pass the result param to the caller instead of having the caller have to pick it up from the builder. Improve docs for node, clock and monitor Pass spa_pod everywhere instead of spa_pod_object. Pass result argument to spa_pod_filter to make things a little nicer.
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struct spa_pod_prop *p = spa_pod_find_prop(obj, 4);
Type changes 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.
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spa_debug_pod(0, NULL, &p->value);
indent
2017-05-26 08:05:01 +02:00
clean up pod_builder Remove the frame argument from the builder, we can use the builder allocated frames. Add deref function to builder to make it more flexible later. Add some more recursion depth checks in the parser. Improve props filter, also filter other types.
2017-11-08 15:48:31 +01:00
obj = spa_pod_builder_deref(&b, ref);
indent
2017-05-26 08:05:01 +02:00
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;
Add new pod parser and builder Add a new pod builder and parser that is less verbose and a little more powerful.
2017-09-21 18:57:41 +02:00
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);
indent
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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,
vfr.denom);
SPA_POD_ARRAY_BODY_FOREACH(&va->body, SPA_POD_BODY_SIZE(va), pi) {
printf("%d\n", *pi);
}
return 0;
Add POD helper objects POD (plain old data) objects are similar to LV2 Atoms and allows storage and construction of datastructures in memory or on the stack. They can be copied with a simple memcpy. The idea is to use this to construct the network messages and to replace the structures used for describing formats and properties.
2017-02-22 13:12:32 +01:00
}
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