mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-11-09 13:30:06 -05:00
b38ecafe81
Use counters instead of void* to iterate items. This simplifies some things and makes it easier to do over the wire. Add format description to NodeInfo and use this to add format descriptions to pinos devices. Small fixes to fix leaks and crashes.
146 lines
4 KiB
C
146 lines
4 KiB
C
/* Pinos
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* Copyright (C) 2015 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 <dlfcn.h>
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#include <spa/include/spa/node.h>
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#include "spa-node.h"
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typedef struct {
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PinosSpaNode this;
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PinosCore *core;
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void *hnd;
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} PinosSpaNodeImpl;
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PinosSpaNode *
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pinos_spa_node_load (PinosCore *core,
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const char *lib,
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const char *factory_name,
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const char *name,
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PinosProperties *properties,
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SetupNode setup_func)
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{
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PinosSpaNode *this;
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PinosSpaNodeImpl *impl;
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SpaNode *spa_node;
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SpaClock *spa_clock;
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SpaResult res;
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SpaHandle *handle;
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void *hnd;
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unsigned int index;
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SpaEnumHandleFactoryFunc enum_func;
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const SpaHandleFactory *factory;
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void *iface;
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if ((hnd = dlopen (lib, RTLD_NOW)) == NULL) {
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pinos_log_error ("can't load %s: %s", lib, dlerror());
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return NULL;
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}
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if ((enum_func = dlsym (hnd, "spa_enum_handle_factory")) == NULL) {
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pinos_log_error ("can't find enum function");
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goto no_symbol;
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}
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for (index = 0; ; index++) {
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if ((res = enum_func (&factory, index)) < 0) {
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if (res != SPA_RESULT_ENUM_END)
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pinos_log_error ("can't enumerate factories: %d", res);
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goto enum_failed;
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}
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if (strcmp (factory->name, factory_name) == 0)
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break;
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}
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handle = calloc (1, factory->size);
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if ((res = spa_handle_factory_init (factory,
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handle,
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NULL,
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core->support,
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core->n_support)) < 0) {
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pinos_log_error ("can't make factory instance: %d", res);
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goto init_failed;
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}
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if ((res = spa_handle_get_interface (handle,
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core->uri.spa_node,
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&iface)) < 0) {
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pinos_log_error ("can't get interface %d", res);
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goto interface_failed;
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}
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spa_node = iface;
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if ((res = spa_handle_get_interface (handle,
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core->uri.spa_clock,
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&iface)) < 0) {
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iface = NULL;
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}
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spa_clock = iface;
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impl = calloc (1, sizeof (PinosSpaNodeImpl));
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impl->core = core;
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impl->hnd = hnd;
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this = &impl->this;
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if (setup_func != NULL) {
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if (setup_func (spa_node, properties) != SPA_RESULT_OK) {
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pinos_log_debug ("Unrecognized properties");
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}
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}
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this->node = pinos_node_new (core,
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name,
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spa_node,
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spa_clock,
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properties);
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this->lib = strdup (lib);
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this->factory_name = strdup (factory_name);
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this->handle = handle;
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return this;
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interface_failed:
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spa_handle_clear (handle);
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init_failed:
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free (handle);
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enum_failed:
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no_symbol:
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dlclose (hnd);
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return NULL;
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}
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void
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pinos_spa_node_destroy (PinosSpaNode * node)
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{
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PinosSpaNodeImpl *impl = SPA_CONTAINER_OF (node, PinosSpaNodeImpl, this);
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pinos_log_debug ("spa-node %p: destroy", impl);
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pinos_signal_emit (&node->destroy_signal, node);
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pinos_node_destroy (node->node);
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spa_handle_clear (node->handle);
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free (node->handle);
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free (node->lib);
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free (node->factory_name);
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dlclose (impl->hnd);
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free (impl);
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}
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