mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-11-04 13:30:12 -05:00
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.
146 lines
3.7 KiB
C
146 lines
3.7 KiB
C
/* PipeWire
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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 <stdio.h>
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#include <sys/mman.h>
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#include <signal.h>
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#include <spa/param/video/format-utils.h>
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#include <spa/param/props.h>
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#include <pipewire/pipewire.h>
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#include <pipewire/factory.h>
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struct data {
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struct pw_main_loop *loop;
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struct pw_core *core;
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struct pw_remote *remote;
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struct spa_hook remote_listener;
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struct pw_node *node;
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const char *library;
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const char *factory;
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const char *path;
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};
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static int make_node(struct data *data)
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{
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struct pw_factory *factory;
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struct pw_properties *props;
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factory = pw_core_find_factory(data->core, "spa-node-factory");
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if (factory == NULL)
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return -1;
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props = pw_properties_new("spa.library.name", data->library,
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"spa.factory.name", data->factory, NULL);
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if (data->path) {
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pw_properties_set(props, PW_NODE_PROP_AUTOCONNECT, "1");
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pw_properties_set(props, PW_NODE_PROP_TARGET_NODE, data->path);
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}
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data->node = pw_factory_create_object(factory,
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NULL,
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PW_ID_INTERFACE_Node,
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PW_VERSION_NODE,
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props, SPA_ID_INVALID);
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pw_node_set_active(data->node, true);
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pw_remote_export(data->remote, data->node);
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return 0;
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}
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static void on_state_changed(void *_data, enum pw_remote_state old, enum pw_remote_state state, const char *error)
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{
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struct data *data = _data;
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switch (state) {
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case PW_REMOTE_STATE_ERROR:
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printf("remote error: %s\n", error);
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pw_main_loop_quit(data->loop);
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break;
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case PW_REMOTE_STATE_CONNECTED:
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printf("remote state: \"%s\"\n", pw_remote_state_as_string(state));
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if (make_node(data) < 0) {
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pw_log_error("can't make node");
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pw_main_loop_quit(data->loop);
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}
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break;
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default:
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printf("remote state: \"%s\"\n", pw_remote_state_as_string(state));
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break;
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}
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}
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static const struct pw_remote_events remote_events = {
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PW_VERSION_REMOTE_EVENTS,
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.state_changed = on_state_changed,
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};
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static void do_quit(void *data, int signal_number)
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{
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struct data *d = data;
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pw_main_loop_quit(d->loop);
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}
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int main(int argc, char *argv[])
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{
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struct data data = { 0, };
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struct pw_loop *l;
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pw_init(&argc, &argv);
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if (argc < 3) {
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fprintf(stderr, "usage: %s <library> <factory> [path]\n\n"
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"\texample: %s v4l2/libspa-v4l2 v4l2-source\n\n",
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argv[0], argv[0]);
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return -1;
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}
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data.loop = pw_main_loop_new(NULL);
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l = pw_main_loop_get_loop(data.loop);
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pw_loop_add_signal(l, SIGINT, do_quit, &data);
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pw_loop_add_signal(l, SIGTERM, do_quit, &data);
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data.core = pw_core_new(l, NULL);
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data.remote = pw_remote_new(data.core, NULL, 0);
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data.library = argv[1];
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data.factory = argv[2];
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if (argc > 3)
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data.path = argv[3];
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pw_module_load(data.core, "libpipewire-module-spa-node-factory", NULL, NULL, NULL, NULL);
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pw_remote_add_listener(data.remote, &data.remote_listener, &remote_events, &data);
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pw_remote_connect(data.remote);
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pw_main_loop_run(data.loop);
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pw_core_destroy(data.core);
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pw_main_loop_destroy(data.loop);
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return 0;
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}
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