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.
264 lines
7 KiB
C
264 lines
7 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 <math.h>
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#include <error.h>
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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 <dlfcn.h>
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#include <errno.h>
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#include <pthread.h>
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#include <poll.h>
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#include <spa/support/loop.h>
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#include <spa/support/log.h>
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#include <spa/support/dbus.h>
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#include <spa/monitor/monitor.h>
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#include <spa/node/node.h>
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#include <spa/node/io.h>
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#include <spa/param/param.h>
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#include <spa/param/props.h>
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#include <spa/param/audio/format-utils.h>
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#include <spa/param/io.h>
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#define M_PI_M2 ( M_PI + M_PI )
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static struct spa_log *logger;
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#define spa_debug(f,...) spa_log_trace(logger, f, __VA_ARGS__)
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#include <spa/graph/graph.h>
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#include <spa/graph/graph-scheduler2.h>
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#include <spa/debug/pod.h>
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#include <spa/debug/types.h>
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struct buffer {
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struct spa_buffer buffer;
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struct spa_meta metas[1];
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struct spa_meta_header header;
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struct spa_data datas[1];
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struct spa_chunk chunks[1];
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};
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struct data {
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struct spa_log *log;
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struct spa_loop *loop;
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struct spa_loop_control *loop_control;
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struct spa_loop_utils *loop_utils;
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bool running;
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struct spa_dbus *dbus;
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struct spa_support support[7];
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uint32_t n_support;
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struct spa_monitor *monitor;
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struct spa_graph graph;
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struct spa_graph_state graph_state;
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struct spa_graph_data graph_data;
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struct spa_graph_node source_node;
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struct spa_graph_port source_out;
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struct spa_graph_port sink_in;
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struct spa_graph_node sink_node;
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struct spa_node *sink;
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struct spa_node *source;
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struct spa_io_buffers source_sink_io[1];
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struct spa_buffer *source_buffers[1];
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struct buffer source_buffer[1];
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};
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static void inspect_item(struct data *data, struct spa_pod *item)
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{
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spa_debug_pod(0, spa_debug_types, item);
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}
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static void monitor_event(void *_data, struct spa_event *event)
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{
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struct data *data = _data;
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switch (SPA_EVENT_TYPE(event)) {
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case SPA_ID_EVENT_MONITOR_Added:
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fprintf(stderr, "added:\n");
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inspect_item(data, SPA_POD_CONTENTS(struct spa_event, event));
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break;
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case SPA_ID_EVENT_MONITOR_Removed:
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fprintf(stderr, "removed:\n");
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inspect_item(data, SPA_POD_CONTENTS(struct spa_event, event));
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break;
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case SPA_ID_EVENT_MONITOR_Changed:
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fprintf(stderr, "changed:\n");
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inspect_item(data, SPA_POD_CONTENTS(struct spa_event, event));
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break;
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}
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}
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static struct spa_monitor_callbacks monitor_callbacks = {
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SPA_VERSION_MONITOR_CALLBACKS,
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monitor_event,
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};
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static int get_handle(struct data *data,
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struct spa_handle **handle,
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const char *lib,
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const char *name)
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{
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int res;
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void *hnd;
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spa_handle_factory_enum_func_t enum_func;
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uint32_t i;
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if ((hnd = dlopen(lib, RTLD_NOW)) == NULL) {
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printf("can't load %s: %s\n", lib, dlerror());
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return -errno;
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}
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if ((enum_func = dlsym(hnd, SPA_HANDLE_FACTORY_ENUM_FUNC_NAME)) == NULL) {
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printf("can't find enum function\n");
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return -errno;
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}
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for (i = 0;;) {
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const struct spa_handle_factory *factory;
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if ((res = enum_func(&factory, &i)) <= 0) {
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if (res != 0)
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printf("can't enumerate factories: %s\n", spa_strerror(res));
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break;
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}
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if (strcmp(factory->name, name))
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continue;
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*handle = calloc(1, spa_handle_factory_get_size(factory, NULL));
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if ((res = spa_handle_factory_init(factory, *handle, NULL,
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data->support,
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data->n_support)) < 0) {
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printf("can't make factory instance: %d\n", res);
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free(*handle);
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return res;
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}
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return 0;
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}
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return -ENOENT;
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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;
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int res;
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const char *str;
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struct spa_handle *handle;
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void *iface;
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spa_zero(data);
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if ((res = get_handle(&data, &handle,
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"build/spa/plugins/support/libspa-support.so",
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"logger")) < 0) {
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error(-1, res, "can't create logger");
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}
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if ((res = spa_handle_get_interface(handle,
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SPA_ID_INTERFACE_Log,
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&iface)) < 0)
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error(-1, res, "can't get log interface");
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data.log = iface;
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data.support[0] = SPA_SUPPORT_INIT(SPA_ID_INTERFACE_Log, data.log);
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data.n_support = 1;
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if ((str = getenv("SPA_DEBUG")))
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data.log->level = atoi(str);
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if ((res = get_handle(&data, &handle,
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"build/spa/plugins/support/libspa-support.so",
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"loop")) < 0) {
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error(-1, res, "can't create loop");
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}
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if ((res = spa_handle_get_interface(handle,
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SPA_ID_INTERFACE_Loop,
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&iface)) < 0)
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error(-1, res, "can't get loop interface");
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data.loop = iface;
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if ((res = spa_handle_get_interface(handle,
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SPA_ID_INTERFACE_LoopControl,
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&iface)) < 0)
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error(-1, res, "can't get loopcontrol interface");
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data.loop_control = iface;
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if ((res = spa_handle_get_interface(handle,
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SPA_ID_INTERFACE_LoopUtils,
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&iface)) < 0)
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error(-1, res, "can't get looputils interface");
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data.loop_utils = iface;
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data.support[1] = SPA_SUPPORT_INIT(SPA_ID_INTERFACE_DataLoop, data.loop);
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data.support[2] = SPA_SUPPORT_INIT(SPA_ID_INTERFACE_MainLoop, data.loop);
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data.support[3] = SPA_SUPPORT_INIT(SPA_ID_INTERFACE_LoopControl, data.loop_control);
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data.support[4] = SPA_SUPPORT_INIT(SPA_ID_INTERFACE_LoopUtils, data.loop_utils);
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data.n_support = 5;
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if ((res = get_handle(&data, &handle,
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"build/spa/plugins/support/libspa-dbus.so",
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"dbus")) < 0) {
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error(-1, res, "can't create dbus");
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}
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if ((res = spa_handle_get_interface(handle,
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SPA_ID_INTERFACE_DBus,
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&iface)) < 0)
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error(-1, res, "can't get dbus interface");
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data.dbus = iface;
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data.support[5] = SPA_SUPPORT_INIT(SPA_ID_INTERFACE_DBus, data.dbus);
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data.n_support = 6;
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if ((res = get_handle(&data, &handle,
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"build/spa/plugins/bluez5/libspa-bluez5.so",
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"bluez5-monitor")) < 0) {
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error(-1, res, "can't create bluez5-monitor");
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}
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if ((res = spa_handle_get_interface(handle,
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SPA_ID_INTERFACE_Monitor,
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&iface)) < 0)
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error(-1, res, "can't get monitor interface");
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data.monitor = iface;
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spa_graph_init(&data.graph, &data.graph_state);
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spa_graph_data_init(&data.graph_data, &data.graph);
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spa_graph_set_callbacks(&data.graph, &spa_graph_impl_default, &data.graph_data);
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spa_monitor_set_callbacks(data.monitor, &monitor_callbacks, &data);
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data.running = true;
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spa_loop_control_enter(data.loop_control);
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while (data.running) {
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spa_loop_control_iterate(data.loop_control, -1);
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}
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spa_loop_control_leave(data.loop_control);
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return -1;
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}
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