Adding upstream version 0.3.65.upstream/0.3.65upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1664 insertions, 0 deletions

diff --git a/src/tools/pw-dump.c b/src/tools/pw-dump.c
new file mode 100644
index 0000000..ecc2c55
--- /dev/null
+++ b/src/tools/pw-dump.c
@@ -0,0 +1,1664 @@
+/* PipeWire
+ *
+ * Copyright © 2020 Wim Taymans <wim.taymans@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <string.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <getopt.h>
+#include <limits.h>
+#include <math.h>
+#include <fnmatch.h>
+#include <locale.h>
+
+#if !defined(FNM_EXTMATCH)
+#define FNM_EXTMATCH 0
+#endif
+
+#include <spa/utils/result.h>
+#include <spa/utils/string.h>
+#include <spa/pod/iter.h>
+#include <spa/debug/types.h>
+#include <spa/utils/json.h>
+#include <spa/utils/ansi.h>
+#include <spa/utils/string.h>
+
+#include <pipewire/pipewire.h>
+#include <pipewire/extensions/metadata.h>
+
+#define INDENT 2
+
+static bool colors = false;
+
+#define NORMAL	(colors ? SPA_ANSI_RESET : "")
+#define LITERAL	(colors ? SPA_ANSI_BRIGHT_MAGENTA : "")
+#define NUMBER	(colors ? SPA_ANSI_BRIGHT_CYAN : "")
+#define STRING	(colors ? SPA_ANSI_BRIGHT_GREEN : "")
+#define KEY	(colors ? SPA_ANSI_BRIGHT_BLUE : "")
+
+struct data {
+	struct pw_main_loop *loop;
+	struct pw_context *context;
+
+	struct pw_core_info *info;
+	struct pw_core *core;
+	struct spa_hook core_listener;
+	int sync_seq;
+
+	struct pw_registry *registry;
+	struct spa_hook registry_listener;
+
+	struct spa_list object_list;
+
+	const char *pattern;
+
+	FILE *out;
+	int level;
+#define STATE_KEY	(1<<0)
+#define STATE_COMMA	(1<<1)
+#define STATE_FIRST	(1<<2)
+#define STATE_MASK	0xffff0000
+#define STATE_SIMPLE	(1<<16)
+	uint32_t state;
+
+	unsigned int monitor:1;
+};
+
+struct param {
+	uint32_t id;
+	int32_t seq;
+	struct spa_list link;
+	struct spa_pod *param;
+};
+
+struct object;
+
+struct class {
+	const char *type;
+	uint32_t version;
+	const void *events;
+	void (*destroy) (struct object *object);
+	void (*dump) (struct object *object);
+	const char *name_key;
+};
+
+struct object {
+	struct spa_list link;
+
+	struct data *data;
+
+	uint32_t id;
+	uint32_t permissions;
+	char *type;
+	uint32_t version;
+	struct pw_properties *props;
+
+	const struct class *class;
+	void *info;
+	struct spa_param_info *params;
+	uint32_t n_params;
+
+	int changed;
+	struct spa_list param_list;
+	struct spa_list pending_list;
+	struct spa_list data_list;
+
+	struct pw_proxy *proxy;
+	struct spa_hook proxy_listener;
+	struct spa_hook object_listener;
+};
+
+static void core_sync(struct data *d)
+{
+	d->sync_seq = pw_core_sync(d->core, PW_ID_CORE, d->sync_seq);
+	pw_log_debug("sync start %u", d->sync_seq);
+}
+
+static uint32_t clear_params(struct spa_list *param_list, uint32_t id)
+{
+	struct param *p, *t;
+	uint32_t count = 0;
+
+	spa_list_for_each_safe(p, t, param_list, link) {
+		if (id == SPA_ID_INVALID || p->id == id) {
+			spa_list_remove(&p->link);
+			free(p);
+			count++;
+		}
+	}
+	return count;
+}
+
+static struct param *add_param(struct spa_list *params, int seq,
+		uint32_t id, const struct spa_pod *param)
+{
+	struct param *p;
+
+	if (id == SPA_ID_INVALID) {
+		if (param == NULL || !spa_pod_is_object(param)) {
+			errno = EINVAL;
+			return NULL;
+		}
+		id = SPA_POD_OBJECT_ID(param);
+	}
+
+	p = malloc(sizeof(*p) + (param != NULL ? SPA_POD_SIZE(param) : 0));
+	if (p == NULL)
+		return NULL;
+
+	p->id = id;
+	p->seq = seq;
+	if (param != NULL) {
+		p->param = SPA_PTROFF(p, sizeof(*p), struct spa_pod);
+		memcpy(p->param, param, SPA_POD_SIZE(param));
+	} else {
+		clear_params(params, id);
+		p->param = NULL;
+	}
+	spa_list_append(params, &p->link);
+
+	return p;
+}
+
+static struct object *find_object(struct data *d, uint32_t id)
+{
+	struct object *o;
+	spa_list_for_each(o, &d->object_list, link) {
+		if (o->id == id)
+			return o;
+	}
+	return NULL;
+}
+
+static void object_update_params(struct spa_list *param_list, struct spa_list *pending_list,
+		uint32_t n_params, struct spa_param_info *params)
+{
+	struct param *p, *t;
+	uint32_t i;
+
+	for (i = 0; i < n_params; i++) {
+		spa_list_for_each_safe(p, t, pending_list, link) {
+			if (p->id == params[i].id &&
+			    p->seq != params[i].seq &&
+			    p->param != NULL) {
+				spa_list_remove(&p->link);
+				free(p);
+			}
+		}
+	}
+
+	spa_list_consume(p, pending_list, link) {
+		spa_list_remove(&p->link);
+		if (p->param == NULL) {
+			clear_params(param_list, p->id);
+			free(p);
+		} else {
+			spa_list_append(param_list, &p->link);
+		}
+	}
+}
+
+static void object_destroy(struct object *o)
+{
+	spa_list_remove(&o->link);
+	if (o->proxy)
+		pw_proxy_destroy(o->proxy);
+	pw_properties_free(o->props);
+	clear_params(&o->param_list, SPA_ID_INVALID);
+	clear_params(&o->pending_list, SPA_ID_INVALID);
+	free(o->type);
+	free(o);
+}
+
+static void put_key(struct data *d, const char *key);
+
+static SPA_PRINTF_FUNC(3,4) void put_fmt(struct data *d, const char *key, const char *fmt, ...)
+{
+	va_list va;
+	if (key)
+		put_key(d, key);
+	fprintf(d->out, "%s%s%*s",
+			d->state & STATE_COMMA ? "," : "",
+			d->state & (STATE_MASK | STATE_KEY) ? " " : d->state & STATE_FIRST ? "" : "\n",
+			d->state & (STATE_MASK | STATE_KEY) ? 0 : d->level, "");
+	va_start(va, fmt);
+	vfprintf(d->out, fmt, va);
+	va_end(va);
+	d->state = (d->state & STATE_MASK) + STATE_COMMA;
+}
+
+static void put_key(struct data *d, const char *key)
+{
+	int size = (strlen(key) + 1) * 4;
+	char *str = alloca(size);
+	spa_json_encode_string(str, size, key);
+	put_fmt(d, NULL, "%s%s%s:", KEY, str, NORMAL);
+	d->state = (d->state & STATE_MASK) + STATE_KEY;
+}
+
+static void put_begin(struct data *d, const char *key, const char *type, uint32_t flags)
+{
+	put_fmt(d, key, "%s", type);
+	d->level += INDENT;
+	d->state = (d->state & STATE_MASK) + (flags & STATE_SIMPLE);
+}
+
+static void put_end(struct data *d, const char *type, uint32_t flags)
+{
+	d->level -= INDENT;
+	d->state = d->state & STATE_MASK;
+	put_fmt(d, NULL, "%s", type);
+	d->state = (d->state & STATE_MASK) + STATE_COMMA - (flags & STATE_SIMPLE);
+}
+
+static void put_encoded_string(struct data *d, const char *key, const char *val)
+{
+	put_fmt(d, key, "%s%s%s", STRING, val, NORMAL);
+}
+static void put_string(struct data *d, const char *key, const char *val)
+{
+	int size = (strlen(val) + 1) * 4;
+	char *str = alloca(size);
+	spa_json_encode_string(str, size, val);
+	put_encoded_string(d, key, str);
+}
+
+static void put_literal(struct data *d, const char *key, const char *val)
+{
+	put_fmt(d, key, "%s%s%s", LITERAL, val, NORMAL);
+}
+
+static void put_int(struct data *d, const char *key, int64_t val)
+{
+	put_fmt(d, key, "%s%"PRIi64"%s", NUMBER, val, NORMAL);
+}
+
+static void put_double(struct data *d, const char *key, double val)
+{
+	char buf[128];
+	put_fmt(d, key, "%s%s%s", NUMBER,
+			spa_json_format_float(buf, sizeof(buf), val), NORMAL);
+}
+
+static void put_value(struct data *d, const char *key, const char *val)
+{
+	int64_t li;
+	float fv;
+
+	if (val == NULL)
+		put_literal(d, key, "null");
+	else if (spa_streq(val, "true") || spa_streq(val, "false"))
+		put_literal(d, key, val);
+	else if (spa_atoi64(val, &li, 10))
+		put_int(d, key, li);
+	else if (spa_json_parse_float(val, strlen(val), &fv))
+		put_double(d, key, fv);
+	else
+		put_string(d, key, val);
+}
+
+static void put_dict(struct data *d, const char *key, struct spa_dict *dict)
+{
+	const struct spa_dict_item *it;
+	spa_dict_qsort(dict);
+	put_begin(d, key, "{", 0);
+	spa_dict_for_each(it, dict)
+		put_value(d, it->key, it->value);
+	put_end(d, "}", 0);
+}
+
+static void put_pod_value(struct data *d, const char *key, const struct spa_type_info *info,
+		uint32_t type, void *body, uint32_t size)
+{
+	if (key)
+		put_key(d, key);
+	switch (type) {
+	case SPA_TYPE_Bool:
+		put_value(d, NULL, *(int32_t*)body ? "true" : "false");
+		break;
+	case SPA_TYPE_Id:
+	{
+		const char *str;
+		char fallback[32];
+		uint32_t id = *(uint32_t*)body;
+		str = spa_debug_type_find_short_name(info, *(uint32_t*)body);
+		if (str == NULL) {
+			snprintf(fallback, sizeof(fallback), "id-%08x", id);
+			str = fallback;
+		}
+		put_value(d, NULL, str);
+		break;
+	}
+	case SPA_TYPE_Int:
+		put_int(d, NULL, *(int32_t*)body);
+		break;
+	case SPA_TYPE_Fd:
+	case SPA_TYPE_Long:
+		put_int(d, NULL, *(int64_t*)body);
+		break;
+	case SPA_TYPE_Float:
+		put_double(d, NULL, *(float*)body);
+		break;
+	case SPA_TYPE_Double:
+		put_double(d, NULL, *(double*)body);
+		break;
+	case SPA_TYPE_String:
+		put_string(d, NULL, (const char*)body);
+		break;
+	case SPA_TYPE_Rectangle:
+	{
+                struct spa_rectangle *r = (struct spa_rectangle *)body;
+		put_begin(d, NULL, "{", STATE_SIMPLE);
+		put_int(d, "width", r->width);
+		put_int(d, "height", r->height);
+		put_end(d, "}", STATE_SIMPLE);
+		break;
+	}
+	case SPA_TYPE_Fraction:
+	{
+                struct spa_fraction *f = (struct spa_fraction *)body;
+		put_begin(d, NULL, "{", STATE_SIMPLE);
+		put_int(d, "num", f->num);
+		put_int(d, "denom", f->denom);
+		put_end(d, "}", STATE_SIMPLE);
+		break;
+	}
+	case SPA_TYPE_Array:
+	{
+		struct spa_pod_array_body *b = (struct spa_pod_array_body *)body;
+		void *p;
+		info = info && info->values ? info->values: info;
+		put_begin(d, NULL, "[", STATE_SIMPLE);
+		SPA_POD_ARRAY_BODY_FOREACH(b, size, p)
+			put_pod_value(d, NULL, info, b->child.type, p, b->child.size);
+		put_end(d, "]", STATE_SIMPLE);
+		break;
+	}
+	case SPA_TYPE_Choice:
+	{
+		struct spa_pod_choice_body *b = (struct spa_pod_choice_body *)body;
+		int index = 0;
+
+		if (b->type == SPA_CHOICE_None) {
+			put_pod_value(d, NULL, info, b->child.type,
+					SPA_POD_CONTENTS(struct spa_pod, &b->child),
+					b->child.size);
+		} else {
+			static const char * const range_labels[] = { "default", "min", "max", NULL };
+			static const char * const step_labels[] = { "default", "min", "max", "step", NULL };
+			static const char * const enum_labels[] = { "default", "alt%u" };
+			static const char * const flags_labels[] = { "default", "flag%u" };
+
+			const char * const *labels;
+			const char *label;
+			char buffer[64];
+			int max_labels, flags = 0;
+			void *p;
+
+			switch (b->type) {
+			case SPA_CHOICE_Range:
+				labels = range_labels;
+				max_labels = 3;
+				flags |= STATE_SIMPLE;
+				break;
+			case SPA_CHOICE_Step:
+				labels = step_labels;
+				max_labels = 4;
+				flags |= STATE_SIMPLE;
+				break;
+			case SPA_CHOICE_Enum:
+				labels = enum_labels;
+				max_labels = 1;
+				break;
+			case SPA_CHOICE_Flags:
+				labels = flags_labels;
+				max_labels = 1;
+				break;
+			default:
+				labels = NULL;
+				break;
+			}
+			if (labels == NULL)
+				break;
+
+			put_begin(d, NULL, "{", flags);
+			SPA_POD_CHOICE_BODY_FOREACH(b, size, p) {
+				if ((label = labels[SPA_CLAMP(index, 0, max_labels)]) == NULL)
+					break;
+				snprintf(buffer, sizeof(buffer), label, index);
+				put_pod_value(d, buffer, info, b->child.type, p, b->child.size);
+				index++;
+			}
+			put_end(d, "}", flags);
+		}
+		break;
+	}
+	case SPA_TYPE_Object:
+        {
+		put_begin(d, NULL, "{", 0);
+		struct spa_pod_object_body *b = (struct spa_pod_object_body *)body;
+		struct spa_pod_prop *p;
+		const struct spa_type_info *ti, *ii;
+
+		ti = spa_debug_type_find(info, b->type);
+		ii = ti ? spa_debug_type_find(ti->values, 0) : NULL;
+		ii = ii ? spa_debug_type_find(ii->values, b->id) : NULL;
+
+		info = ti ? ti->values : info;
+
+		SPA_POD_OBJECT_BODY_FOREACH(b, size, p) {
+			char fallback[32];
+			const char *name;
+
+			ii = spa_debug_type_find(info, p->key);
+			name = ii ? spa_debug_type_short_name(ii->name) : NULL;
+			if (name == NULL) {
+				snprintf(fallback, sizeof(fallback), "id-%08x", p->key);
+				name = fallback;
+			}
+			put_pod_value(d, name,
+					ii ? ii->values : NULL,
+					p->value.type,
+					SPA_POD_CONTENTS(struct spa_pod_prop, p),
+					p->value.size);
+		}
+		put_end(d, "}", 0);
+		break;
+	}
+	case SPA_TYPE_Struct:
+	{
+		struct spa_pod *b = (struct spa_pod *)body, *p;
+		put_begin(d, NULL, "[", 0);
+		SPA_POD_FOREACH(b, size, p)
+			put_pod_value(d, NULL, info, p->type, SPA_POD_BODY(p), p->size);
+		put_end(d, "]", 0);
+		break;
+	}
+	case SPA_TYPE_None:
+		put_value(d, NULL, NULL);
+		break;
+	}
+}
+static void put_pod(struct data *d, const char *key, const struct spa_pod *pod)
+{
+	if (pod == NULL) {
+		put_value(d, key, NULL);
+	} else {
+		put_pod_value(d, key, SPA_TYPE_ROOT,
+				SPA_POD_TYPE(pod),
+				SPA_POD_BODY(pod),
+				SPA_POD_BODY_SIZE(pod));
+	}
+}
+
+static void put_params(struct data *d, const char *key,
+		struct spa_param_info *params, uint32_t n_params,
+		struct spa_list *list)
+{
+	uint32_t i;
+
+	put_begin(d, key, "{", 0);
+	for (i = 0; i < n_params; i++) {
+		struct spa_param_info *pi = &params[i];
+		struct param *p;
+		uint32_t flags;
+
+		flags = pi->flags & SPA_PARAM_INFO_READ ? 0 : STATE_SIMPLE;
+
+		put_begin(d, spa_debug_type_find_short_name(spa_type_param, pi->id),
+				"[", flags);
+		spa_list_for_each(p, list, link) {
+			if (p->id == pi->id)
+				put_pod(d, NULL, p->param);
+		}
+		put_end(d, "]", flags);
+	}
+	put_end(d, "}", 0);
+}
+
+struct flags_info {
+	const char *name;
+	uint64_t mask;
+};
+
+static void put_flags(struct data *d, const char *key,
+		uint64_t flags, const struct flags_info *info)
+{
+	uint32_t i;
+	put_begin(d, key, "[", STATE_SIMPLE);
+	for (i = 0; info[i].name != NULL; i++) {
+		if (info[i].mask & flags)
+			put_string(d, NULL, info[i].name);
+	}
+	put_end(d, "]", STATE_SIMPLE);
+}
+
+/* core */
+static void core_dump(struct object *o)
+{
+	static const struct flags_info fl[] = {
+		{ "props", PW_CORE_CHANGE_MASK_PROPS },
+		{ NULL, 0 },
+	};
+
+	struct data *d = o->data;
+	struct pw_core_info *i = d->info;
+
+	put_begin(d, "info", "{", 0);
+	put_int(d, "cookie", i->cookie);
+	put_value(d, "user-name", i->user_name);
+	put_value(d, "host-name", i->host_name);
+	put_value(d, "version", i->version);
+	put_value(d, "name", i->name);
+	put_flags(d, "change-mask", i->change_mask, fl);
+	put_dict(d, "props", i->props);
+	put_end(d, "}", 0);
+}
+
+static const struct class core_class = {
+	.type = PW_TYPE_INTERFACE_Core,
+	.version = PW_VERSION_CORE,
+	.dump = core_dump,
+	.name_key = PW_KEY_CORE_NAME,
+};
+
+/* client */
+static void client_dump(struct object *o)
+{
+	static const struct flags_info fl[] = {
+		{ "props", PW_CLIENT_CHANGE_MASK_PROPS },
+		{ NULL, 0 },
+	};
+
+	struct data *d = o->data;
+	struct pw_client_info *i = o->info;
+
+	put_begin(d, "info", "{", 0);
+	put_flags(d, "change-mask", i->change_mask, fl);
+	put_dict(d, "props", i->props);
+	put_end(d, "}", 0);
+}
+
+static void client_event_info(void *data, const struct pw_client_info *info)
+{
+	struct object *o = data;
+	int changed = 0;
+
+	pw_log_debug("object %p: id:%d change-mask:%08"PRIx64, o, o->id, info->change_mask);
+
+	info = o->info = pw_client_info_update(o->info, info);
+	if (info == NULL)
+		return;
+
+	if (info->change_mask & PW_CLIENT_CHANGE_MASK_PROPS)
+		changed++;
+
+	if (changed) {
+		o->changed += changed;
+		core_sync(o->data);
+	}
+}
+
+static const struct pw_client_events client_events = {
+	PW_VERSION_CLIENT_EVENTS,
+	.info = client_event_info,
+};
+
+static void client_destroy(struct object *o)
+{
+	if (o->info) {
+		pw_client_info_free(o->info);
+		o->info = NULL;
+	}
+}
+
+static const struct class client_class = {
+	.type = PW_TYPE_INTERFACE_Client,
+	.version = PW_VERSION_CLIENT,
+	.events = &client_events,
+	.destroy = client_destroy,
+	.dump = client_dump,
+	.name_key = PW_KEY_APP_NAME,
+};
+
+/* module */
+static void module_dump(struct object *o)
+{
+	static const struct flags_info fl[] = {
+		{ "props", PW_MODULE_CHANGE_MASK_PROPS },
+		{ NULL, 0 },
+	};
+
+	struct data *d = o->data;
+	struct pw_module_info *i = o->info;
+
+	put_begin(d, "info", "{", 0);
+	put_value(d, "name", i->name);
+	put_value(d, "filename", i->filename);
+	put_value(d, "args", i->args);
+	put_flags(d, "change-mask", i->change_mask, fl);
+	put_dict(d, "props", i->props);
+	put_end(d, "}", 0);
+}
+
+static void module_event_info(void *data, const struct pw_module_info *info)
+{
+	struct object *o = data;
+	int changed = 0;
+
+	pw_log_debug("object %p: id:%d change-mask:%08"PRIx64, o, o->id, info->change_mask);
+
+	info = o->info = pw_module_info_update(o->info, info);
+	if (info == NULL)
+		return;
+
+	if (info->change_mask & PW_MODULE_CHANGE_MASK_PROPS)
+		changed++;
+
+	if (changed) {
+		o->changed += changed;
+		core_sync(o->data);
+	}
+}
+
+static const struct pw_module_events module_events = {
+	PW_VERSION_MODULE_EVENTS,
+	.info = module_event_info,
+};
+
+static void module_destroy(struct object *o)
+{
+	if (o->info) {
+		pw_module_info_free(o->info);
+		o->info = NULL;
+	}
+}
+
+static const struct class module_class = {
+	.type = PW_TYPE_INTERFACE_Module,
+	.version = PW_VERSION_MODULE,
+	.events = &module_events,
+	.destroy = module_destroy,
+	.dump = module_dump,
+	.name_key = PW_KEY_MODULE_NAME,
+};
+
+/* factory */
+static void factory_dump(struct object *o)
+{
+	static const struct flags_info fl[] = {
+		{ "props", PW_FACTORY_CHANGE_MASK_PROPS },
+		{ NULL, 0 },
+	};
+
+	struct data *d = o->data;
+	struct pw_factory_info *i = o->info;
+
+	put_begin(d, "info", "{", 0);
+	put_value(d, "name", i->name);
+	put_value(d, "type", i->type);
+	put_int(d, "version", i->version);
+	put_flags(d, "change-mask", i->change_mask, fl);
+	put_dict(d, "props", i->props);
+	put_end(d, "}", 0);
+}
+
+static void factory_event_info(void *data, const struct pw_factory_info *info)
+{
+	struct object *o = data;
+	int changed = 0;
+
+	pw_log_debug("object %p: id:%d change-mask:%08"PRIx64, o, o->id, info->change_mask);
+
+	info = o->info = pw_factory_info_update(o->info, info);
+	if (info == NULL)
+		return;
+
+	if (info->change_mask & PW_FACTORY_CHANGE_MASK_PROPS)
+		changed++;
+
+	if (changed) {
+		o->changed += changed;
+		core_sync(o->data);
+	}
+}
+
+static const struct pw_factory_events factory_events = {
+	PW_VERSION_FACTORY_EVENTS,
+	.info = factory_event_info,
+};
+
+static void factory_destroy(struct object *o)
+{
+	if (o->info) {
+		pw_factory_info_free(o->info);
+		o->info = NULL;
+	}
+}
+
+static const struct class factory_class = {
+	.type = PW_TYPE_INTERFACE_Factory,
+	.version = PW_VERSION_FACTORY,
+	.events = &factory_events,
+	.destroy = factory_destroy,
+	.dump = factory_dump,
+	.name_key = PW_KEY_FACTORY_NAME,
+};
+
+/* device */
+static void device_dump(struct object *o)
+{
+	static const struct flags_info fl[] = {
+		{ "props", PW_DEVICE_CHANGE_MASK_PROPS },
+		{ "params", PW_DEVICE_CHANGE_MASK_PARAMS },
+		{ NULL, 0 },
+	};
+
+	struct data *d = o->data;
+	struct pw_device_info *i = o->info;
+
+	put_begin(d, "info", "{", 0);
+	put_flags(d, "change-mask", i->change_mask, fl);
+	put_dict(d, "props", i->props);
+	put_params(d, "params", i->params, i->n_params, &o->param_list);
+	put_end(d, "}", 0);
+}
+
+static void device_event_info(void *data, const struct pw_device_info *info)
+{
+	struct object *o = data;
+	uint32_t i, changed = 0;
+	int res;
+
+	pw_log_debug("object %p: id:%d change-mask:%08"PRIx64, o, o->id, info->change_mask);
+
+	info = o->info = pw_device_info_update(o->info, info);
+	if (info == NULL)
+		return;
+
+	o->params = info->params;
+	o->n_params = info->n_params;
+
+	if (info->change_mask & PW_DEVICE_CHANGE_MASK_PROPS)
+		changed++;
+
+	if (info->change_mask & PW_DEVICE_CHANGE_MASK_PARAMS) {
+		for (i = 0; i < info->n_params; i++) {
+			uint32_t id = info->params[i].id;
+
+			if (info->params[i].user == 0)
+				continue;
+			info->params[i].user = 0;
+
+			changed++;
+			add_param(&o->pending_list, 0, id, NULL);
+			if (!(info->params[i].flags & SPA_PARAM_INFO_READ))
+				continue;
+
+			res = pw_device_enum_params((struct pw_device*)o->proxy,
+					++info->params[i].seq, id, 0, -1, NULL);
+			if (SPA_RESULT_IS_ASYNC(res))
+				info->params[i].seq = res;
+		}
+	}
+	if (changed) {
+		o->changed += changed;
+		core_sync(o->data);
+	}
+}
+
+static void device_event_param(void *data, int seq,
+		uint32_t id, uint32_t index, uint32_t next,
+		const struct spa_pod *param)
+{
+	struct object *o = data;
+	add_param(&o->pending_list, seq, id, param);
+}
+
+static const struct pw_device_events device_events = {
+	PW_VERSION_DEVICE_EVENTS,
+	.info = device_event_info,
+	.param = device_event_param,
+};
+
+static void device_destroy(struct object *o)
+{
+	if (o->info) {
+		pw_device_info_free(o->info);
+		o->info = NULL;
+	}
+}
+
+static const struct class device_class = {
+	.type = PW_TYPE_INTERFACE_Device,
+	.version = PW_VERSION_DEVICE,
+	.events = &device_events,
+	.destroy = device_destroy,
+	.dump = device_dump,
+	.name_key = PW_KEY_DEVICE_NAME,
+};
+
+/* node */
+static void node_dump(struct object *o)
+{
+	static const struct flags_info fl[] = {
+		{ "input-ports", PW_NODE_CHANGE_MASK_INPUT_PORTS },
+		{ "output-ports", PW_NODE_CHANGE_MASK_OUTPUT_PORTS },
+		{ "state", PW_NODE_CHANGE_MASK_STATE },
+		{ "props", PW_NODE_CHANGE_MASK_PROPS },
+		{ "params", PW_NODE_CHANGE_MASK_PARAMS },
+		{ NULL, 0 },
+	};
+
+	struct data *d = o->data;
+	struct pw_node_info *i = o->info;
+
+	put_begin(d, "info", "{", 0);
+	put_int(d, "max-input-ports", i->max_input_ports);
+	put_int(d, "max-output-ports", i->max_output_ports);
+	put_flags(d, "change-mask", i->change_mask, fl);
+	put_int(d, "n-input-ports", i->n_input_ports);
+	put_int(d, "n-output-ports", i->n_output_ports);
+	put_value(d, "state", pw_node_state_as_string(i->state));
+	put_value(d, "error", i->error);
+	put_dict(d, "props", i->props);
+	put_params(d, "params", i->params, i->n_params, &o->param_list);
+	put_end(d, "}", 0);
+}
+
+static void node_event_info(void *data, const struct pw_node_info *info)
+{
+	struct object *o = data;
+	uint32_t i, changed = 0;
+	int res;
+
+	pw_log_debug("object %p: id:%d change-mask:%08"PRIx64, o, o->id, info->change_mask);
+
+	info = o->info = pw_node_info_update(o->info, info);
+	if (info == NULL)
+		return;
+
+	o->params = info->params;
+	o->n_params = info->n_params;
+
+	if (info->change_mask & PW_NODE_CHANGE_MASK_STATE)
+		changed++;
+
+	if (info->change_mask & PW_NODE_CHANGE_MASK_PROPS)
+		changed++;
+
+	if (info->change_mask & PW_NODE_CHANGE_MASK_PARAMS) {
+		for (i = 0; i < info->n_params; i++) {
+			uint32_t id = info->params[i].id;
+
+			if (info->params[i].user == 0)
+				continue;
+			info->params[i].user = 0;
+
+			changed++;
+			add_param(&o->pending_list, 0, id, NULL);
+			if (!(info->params[i].flags & SPA_PARAM_INFO_READ))
+				continue;
+
+			res = pw_node_enum_params((struct pw_node*)o->proxy,
+					++info->params[i].seq, id, 0, -1, NULL);
+			if (SPA_RESULT_IS_ASYNC(res))
+				info->params[i].seq = res;
+		}
+	}
+	if (changed) {
+		o->changed += changed;
+		core_sync(o->data);
+	}
+}
+
+static void node_event_param(void *data, int seq,
+		uint32_t id, uint32_t index, uint32_t next,
+		const struct spa_pod *param)
+{
+	struct object *o = data;
+	add_param(&o->pending_list, seq, id, param);
+}
+
+static const struct pw_node_events node_events = {
+	PW_VERSION_NODE_EVENTS,
+	.info = node_event_info,
+	.param = node_event_param,
+};
+
+static void node_destroy(struct object *o)
+{
+	if (o->info) {
+		pw_node_info_free(o->info);
+		o->info = NULL;
+	}
+}
+
+static const struct class node_class = {
+	.type = PW_TYPE_INTERFACE_Node,
+	.version = PW_VERSION_NODE,
+	.events = &node_events,
+	.destroy = node_destroy,
+	.dump = node_dump,
+	.name_key = PW_KEY_NODE_NAME,
+};
+
+/* port */
+static void port_dump(struct object *o)
+{
+	static const struct flags_info fl[] = {
+		{ "props", PW_PORT_CHANGE_MASK_PROPS },
+		{ "params", PW_PORT_CHANGE_MASK_PARAMS },
+		{ NULL, },
+	};
+
+	struct data *d = o->data;
+	struct pw_port_info *i = o->info;
+
+	put_begin(d, "info", "{", 0);
+	put_value(d, "direction", pw_direction_as_string(i->direction));
+	put_flags(d, "change-mask", i->change_mask, fl);
+	put_dict(d, "props", i->props);
+	put_params(d, "params", i->params, i->n_params, &o->param_list);
+	put_end(d, "}", 0);
+}
+
+static void port_event_info(void *data, const struct pw_port_info *info)
+{
+	struct object *o = data;
+	uint32_t i, changed = 0;
+	int res;
+
+	pw_log_debug("object %p: id:%d change-mask:%08"PRIx64, o, o->id, info->change_mask);
+
+	info = o->info = pw_port_info_update(o->info, info);
+	if (info == NULL)
+		return;
+
+	o->params = info->params;
+	o->n_params = info->n_params;
+
+	if (info->change_mask & PW_PORT_CHANGE_MASK_PROPS)
+		changed++;
+
+	if (info->change_mask & PW_PORT_CHANGE_MASK_PARAMS) {
+		for (i = 0; i < info->n_params; i++) {
+			uint32_t id = info->params[i].id;
+
+			if (info->params[i].user == 0)
+				continue;
+			info->params[i].user = 0;
+
+			changed++;
+			add_param(&o->pending_list, 0, id, NULL);
+			if (!(info->params[i].flags & SPA_PARAM_INFO_READ))
+				continue;
+
+			res = pw_port_enum_params((struct pw_port*)o->proxy,
+					++info->params[i].seq, id, 0, -1, NULL);
+			if (SPA_RESULT_IS_ASYNC(res))
+				info->params[i].seq = res;
+		}
+	}
+	if (changed) {
+		o->changed += changed;
+		core_sync(o->data);
+	}
+}
+
+static void port_event_param(void *data, int seq,
+		uint32_t id, uint32_t index, uint32_t next,
+		const struct spa_pod *param)
+{
+	struct object *o = data;
+	add_param(&o->pending_list, seq, id, param);
+}
+
+static const struct pw_port_events port_events = {
+	PW_VERSION_PORT_EVENTS,
+	.info = port_event_info,
+	.param = port_event_param,
+};
+
+static void port_destroy(struct object *o)
+{
+	if (o->info) {
+		pw_port_info_free(o->info);
+		o->info = NULL;
+	}
+}
+
+static const struct class port_class = {
+	.type = PW_TYPE_INTERFACE_Port,
+	.version = PW_VERSION_PORT,
+	.events = &port_events,
+	.destroy = port_destroy,
+	.dump = port_dump,
+	.name_key = PW_KEY_PORT_NAME,
+};
+
+/* link */
+static void link_dump(struct object *o)
+{
+	static const struct flags_info fl[] = {
+		{ "state", PW_LINK_CHANGE_MASK_STATE },
+		{ "format", PW_LINK_CHANGE_MASK_FORMAT },
+		{ "props", PW_LINK_CHANGE_MASK_PROPS },
+		{ NULL, },
+	};
+
+	struct data *d = o->data;
+	struct pw_link_info *i = o->info;
+
+	put_begin(d, "info", "{", 0);
+	put_int(d, "output-node-id", i->output_node_id);
+	put_int(d, "output-port-id", i->output_port_id);
+	put_int(d, "input-node-id", i->input_node_id);
+	put_int(d, "input-port-id", i->input_port_id);
+	put_flags(d, "change-mask", i->change_mask, fl);
+	put_value(d, "state", pw_link_state_as_string(i->state));
+	put_value(d, "error", i->error);
+	put_pod(d, "format", i->format);
+	put_dict(d, "props", i->props);
+	put_end(d, "}", 0);
+}
+
+static void link_event_info(void *data, const struct pw_link_info *info)
+{
+	struct object *o = data;
+	uint32_t changed = 0;
+
+	pw_log_debug("object %p: id:%d change-mask:%08"PRIx64, o, o->id, info->change_mask);
+
+	info = o->info = pw_link_info_update(o->info, info);
+	if (info == NULL)
+		return;
+
+	if (info->change_mask & PW_LINK_CHANGE_MASK_STATE)
+		changed++;
+
+	if (info->change_mask & PW_LINK_CHANGE_MASK_FORMAT)
+		changed++;
+
+	if (info->change_mask & PW_LINK_CHANGE_MASK_PROPS)
+		changed++;
+
+	if (changed) {
+		o->changed += changed;
+		core_sync(o->data);
+	}
+}
+
+static const struct pw_link_events link_events = {
+	PW_VERSION_PORT_EVENTS,
+	.info = link_event_info,
+};
+
+static void link_destroy(struct object *o)
+{
+	if (o->info) {
+		pw_link_info_free(o->info);
+		o->info = NULL;
+	}
+}
+
+static const struct class link_class = {
+	.type = PW_TYPE_INTERFACE_Link,
+	.version = PW_VERSION_LINK,
+	.events = &link_events,
+	.destroy = link_destroy,
+	.dump = link_dump,
+};
+
+static void json_dump_val(struct data *d, const char *key, struct spa_json *it, const char *value, int len)
+{
+	struct spa_json sub;
+	if (spa_json_is_array(value, len)) {
+		put_begin(d, key, "[", STATE_SIMPLE);
+		spa_json_enter(it, &sub);
+		while ((len = spa_json_next(&sub, &value)) > 0) {
+			json_dump_val(d, NULL, &sub, value, len);
+		}
+		put_end(d, "]", STATE_SIMPLE);
+	} else if (spa_json_is_object(value, len)) {
+		char val[1024];
+		put_begin(d, key, "{", STATE_SIMPLE);
+		spa_json_enter(it, &sub);
+		while (spa_json_get_string(&sub, val, sizeof(val)) > 0) {
+			if ((len = spa_json_next(&sub, &value)) <= 0)
+				break;
+			json_dump_val(d, val, &sub, value, len);
+		}
+		put_end(d, "}", STATE_SIMPLE);
+	} else if (spa_json_is_string(value, len)) {
+		put_encoded_string(d, key, strndupa(value, len));
+	} else {
+		put_value(d, key, strndupa(value, len));
+	}
+}
+
+static void json_dump(struct data *d, const char *key, const char *value)
+{
+	struct spa_json it[1];
+	int len;
+	const char *val;
+	spa_json_init(&it[0], value, strlen(value));
+	if ((len = spa_json_next(&it[0], &val)) >= 0)
+		json_dump_val(d, key, &it[0], val, len);
+}
+
+/* metadata */
+
+struct metadata_entry {
+	struct spa_list link;
+	uint32_t changed;
+	uint32_t subject;
+	char *key;
+	char *value;
+	char *type;
+};
+
+static void metadata_dump(struct object *o)
+{
+	struct data *d = o->data;
+	struct metadata_entry *e;
+	put_dict(d, "props", &o->props->dict);
+	put_begin(d, "metadata", "[", 0);
+	spa_list_for_each(e, &o->data_list, link) {
+		if (e->changed == 0)
+			continue;
+		put_begin(d, NULL, "{", STATE_SIMPLE);
+		put_int(d, "subject", e->subject);
+		put_value(d, "key", e->key);
+		put_value(d, "type", e->type);
+		if (e->type != NULL && spa_streq(e->type, "Spa:String:JSON"))
+			json_dump(d, "value", e->value);
+		else
+			put_value(d, "value", e->value);
+		put_end(d, "}", STATE_SIMPLE);
+		e->changed = 0;
+	}
+	put_end(d, "]", 0);
+}
+
+static struct metadata_entry *metadata_find(struct object *o, uint32_t subject, const char *key)
+{
+	struct metadata_entry *e;
+	spa_list_for_each(e, &o->data_list, link) {
+		if ((e->subject == subject) &&
+		    (key == NULL || spa_streq(e->key, key)))
+			return e;
+	}
+	return NULL;
+}
+
+static int metadata_property(void *data,
+			uint32_t subject,
+			const char *key,
+			const char *type,
+			const char *value)
+{
+	struct object *o = data;
+	struct metadata_entry *e;
+
+	while ((e = metadata_find(o, subject, key)) != NULL) {
+		spa_list_remove(&e->link);
+		free(e);
+	}
+	if (key != NULL && value != NULL) {
+		size_t size = strlen(key) + 1;
+		size += strlen(value) + 1;
+		size += type ? strlen(type) + 1 : 0;
+
+		e = calloc(1, sizeof(*e) + size);
+		if (e == NULL)
+			return -errno;
+
+		e->subject = subject;
+		e->key = SPA_PTROFF(e, sizeof(*e), void);
+		strcpy(e->key, key);
+		e->value = SPA_PTROFF(e->key, strlen(e->key) + 1, void);
+		strcpy(e->value, value);
+		if (type) {
+			e->type = SPA_PTROFF(e->value, strlen(e->value) + 1, void);
+			strcpy(e->type, type);
+		} else {
+			e->type = NULL;
+		}
+		spa_list_append(&o->data_list, &e->link);
+		e->changed++;
+	}
+	o->changed++;
+	return 0;
+}
+
+static const struct pw_metadata_events metadata_events = {
+	PW_VERSION_METADATA_EVENTS,
+	.property = metadata_property,
+};
+
+static void metadata_destroy(struct object *o)
+{
+	struct metadata_entry *e;
+	spa_list_consume(e, &o->data_list, link) {
+		spa_list_remove(&e->link);
+		free(e);
+	}
+}
+
+static const struct class metadata_class = {
+	.type = PW_TYPE_INTERFACE_Metadata,
+	.version = PW_VERSION_METADATA,
+	.events = &metadata_events,
+	.destroy = metadata_destroy,
+	.dump = metadata_dump,
+	.name_key = PW_KEY_METADATA_NAME,
+};
+
+static const struct class *classes[] =
+{
+	&core_class,
+	&module_class,
+	&factory_class,
+	&client_class,
+	&device_class,
+	&node_class,
+	&port_class,
+	&link_class,
+	&metadata_class,
+};
+
+static const struct class *find_class(const char *type, uint32_t version)
+{
+	SPA_FOR_EACH_ELEMENT_VAR(classes, c) {
+		if (spa_streq((*c)->type, type) &&
+		    (*c)->version <= version)
+			return *c;
+	}
+	return NULL;
+}
+
+static void
+destroy_removed(void *data)
+{
+	struct object *o = data;
+	pw_proxy_destroy(o->proxy);
+}
+
+static void
+destroy_proxy(void *data)
+{
+	struct object *o = data;
+
+	spa_hook_remove(&o->proxy_listener);
+	if (o->class != NULL) {
+		if (o->class->events)
+			spa_hook_remove(&o->object_listener);
+		if (o->class->destroy)
+	                o->class->destroy(o);
+	}
+        o->proxy = NULL;
+}
+
+static const struct pw_proxy_events proxy_events = {
+        PW_VERSION_PROXY_EVENTS,
+        .removed = destroy_removed,
+        .destroy = destroy_proxy,
+};
+
+static void registry_event_global(void *data, uint32_t id,
+			uint32_t permissions, const char *type, uint32_t version,
+			const struct spa_dict *props)
+{
+	struct data *d = data;
+	struct object *o;
+
+	o = calloc(1, sizeof(*o));
+	if (o == NULL) {
+		pw_log_error("can't alloc object for %u %s/%d: %m", id, type, version);
+		return;
+	}
+	o->data = d;
+	o->id = id;
+	o->permissions = permissions;
+	o->type = strdup(type);
+	o->version = version;
+	o->props = props ? pw_properties_new_dict(props) : NULL;
+	spa_list_init(&o->param_list);
+	spa_list_init(&o->pending_list);
+	spa_list_init(&o->data_list);
+
+	o->class = find_class(type, version);
+	if (o->class != NULL) {
+		o->proxy = pw_registry_bind(d->registry,
+				id, type, o->class->version, 0);
+		if (o->proxy == NULL)
+			goto bind_failed;
+
+		pw_proxy_add_listener(o->proxy,
+				&o->proxy_listener,
+				&proxy_events, o);
+
+		if (o->class->events)
+			pw_proxy_add_object_listener(o->proxy,
+					&o->object_listener,
+					o->class->events, o);
+		else
+			o->changed++;
+	} else {
+		o->changed++;
+	}
+	spa_list_append(&d->object_list, &o->link);
+
+	core_sync(d);
+	return;
+
+bind_failed:
+	pw_log_error("can't bind object for %u %s/%d: %m", id, type, version);
+	pw_properties_free(o->props);
+	free(o);
+	return;
+}
+
+static bool object_matches(struct object *o, const char *pattern)
+{
+	uint32_t id;
+	const char *str;
+
+	if (spa_atou32(pattern, &id, 0) && o->id == id)
+		return true;
+
+	if (o->props == NULL)
+		return false;
+
+	if (strstr(o->type, pattern) != NULL)
+		return true;
+	if ((str = pw_properties_get(o->props, PW_KEY_OBJECT_PATH)) != NULL &&
+	    fnmatch(pattern, str, FNM_EXTMATCH) == 0)
+		return true;
+	if ((str = pw_properties_get(o->props, PW_KEY_OBJECT_SERIAL)) != NULL &&
+	    spa_streq(pattern, str))
+		return true;
+	if (o->class != NULL && o->class->name_key != NULL &&
+	    (str = pw_properties_get(o->props, o->class->name_key)) != NULL &&
+	    fnmatch(pattern, str, FNM_EXTMATCH) == 0)
+		return true;
+	return false;
+}
+
+static void registry_event_global_remove(void *data, uint32_t id)
+{
+	struct data *d = data;
+	struct object *o;
+
+	if ((o = find_object(d, id)) == NULL)
+		return;
+
+	d->state = STATE_FIRST;
+	if (d->pattern != NULL && !object_matches(o, d->pattern))
+		return;
+	if (d->state == STATE_FIRST)
+		put_begin(d, NULL, "[", 0);
+	put_begin(d, NULL, "{", 0);
+	put_int(d, "id", o->id);
+	if (o->class && o->class->dump)
+		put_value(d, "info", NULL);
+	else if (o->props)
+		put_value(d, "props", NULL);
+	put_end(d, "}", 0);
+	if (d->state != STATE_FIRST)
+		put_end(d, "]\n", 0);
+
+	object_destroy(o);
+}
+
+static const struct pw_registry_events registry_events = {
+	PW_VERSION_REGISTRY_EVENTS,
+	.global = registry_event_global,
+	.global_remove = registry_event_global_remove,
+};
+
+static void dump_objects(struct data *d)
+{
+	static const struct flags_info fl[] = {
+		{ "r", PW_PERM_R },
+		{ "w", PW_PERM_W },
+		{ "x", PW_PERM_X },
+		{ "m", PW_PERM_M },
+		{ NULL, },
+	};
+
+	struct object *o;
+
+	d->state = STATE_FIRST;
+	spa_list_for_each(o, &d->object_list, link) {
+		if (d->pattern != NULL && !object_matches(o, d->pattern))
+			continue;
+		if (o->changed == 0)
+			continue;
+		if (d->state == STATE_FIRST)
+			put_begin(d, NULL, "[", 0);
+		put_begin(d, NULL, "{", 0);
+		put_int(d, "id", o->id);
+		put_value(d, "type", o->type);
+		put_int(d, "version", o->version);
+		put_flags(d, "permissions", o->permissions, fl);
+		if (o->class && o->class->dump)
+			o->class->dump(o);
+		else if (o->props)
+			put_dict(d, "props", &o->props->dict);
+		put_end(d, "}", 0);
+		o->changed = 0;
+	}
+	if (d->state != STATE_FIRST)
+		put_end(d, "]\n", 0);
+}
+
+static void on_core_error(void *data, uint32_t id, int seq, int res, const char *message)
+{
+	struct data *d = data;
+
+	pw_log_error("error id:%u seq:%d res:%d (%s): %s",
+			id, seq, res, spa_strerror(res), message);
+
+	if (id == PW_ID_CORE && res == -EPIPE)
+		pw_main_loop_quit(d->loop);
+}
+
+static void on_core_info(void *data, const struct pw_core_info *info)
+{
+	struct data *d = data;
+	d->info = pw_core_info_update(d->info, info);
+}
+
+static void on_core_done(void *data, uint32_t id, int seq)
+{
+	struct data *d = data;
+	struct object *o;
+
+	if (id == PW_ID_CORE) {
+		if (d->sync_seq != seq)
+			return;
+
+		pw_log_debug("sync end %u/%u", d->sync_seq, seq);
+
+		spa_list_for_each(o, &d->object_list, link)
+			object_update_params(&o->param_list, &o->pending_list,
+					o->n_params, o->params);
+
+		dump_objects(d);
+		if (!d->monitor)
+			pw_main_loop_quit(d->loop);
+	}
+}
+
+static const struct pw_core_events core_events = {
+	PW_VERSION_CORE_EVENTS,
+	.done = on_core_done,
+	.info = on_core_info,
+	.error = on_core_error,
+};
+
+static void do_quit(void *data, int signal_number)
+{
+	struct data *d = data;
+	pw_main_loop_quit(d->loop);
+}
+
+static void show_help(struct data *data, const char *name, bool error)
+{
+	fprintf(error ? stderr : stdout, "%s [options] [<id>]\n"
+		"  -h, --help                            Show this help\n"
+		"      --version                         Show version\n"
+		"  -r, --remote                          Remote daemon name\n"
+		"  -m, --monitor                         monitor changes\n"
+		"  -N, --no-colors                       disable color output\n"
+		"  -C, --color[=WHEN]                    whether to enable color support. WHEN is `never`, `always`, or `auto`\n",
+		name);
+}
+
+int main(int argc, char *argv[])
+{
+	struct data data = { 0 };
+	struct object *o;
+	struct pw_loop *l;
+	const char *opt_remote = NULL;
+	static const struct option long_options[] = {
+		{ "help",	no_argument,		NULL, 'h' },
+		{ "version",	no_argument,		NULL, 'V' },
+		{ "remote",	required_argument,	NULL, 'r' },
+		{ "monitor",	no_argument,		NULL, 'm' },
+		{ "no-colors",	no_argument,		NULL, 'N' },
+		{ "color",	optional_argument,	NULL, 'C' },
+		{ NULL, 0, NULL, 0}
+	};
+	int c;
+
+	setlocale(LC_ALL, "");
+	pw_init(&argc, &argv);
+
+	data.out = stdout;
+	if (isatty(fileno(data.out)) && getenv("NO_COLOR") == NULL)
+		colors = true;
+	setlinebuf(data.out);
+
+	while ((c = getopt_long(argc, argv, "hVr:mNC", long_options, NULL)) != -1) {
+		switch (c) {
+		case 'h' :
+			show_help(&data, argv[0], false);
+			return 0;
+		case 'V' :
+			printf("%s\n"
+				"Compiled with libpipewire %s\n"
+				"Linked with libpipewire %s\n",
+				argv[0],
+				pw_get_headers_version(),
+				pw_get_library_version());
+			return 0;
+		case 'r' :
+			opt_remote = optarg;
+			break;
+		case 'm' :
+			data.monitor = true;
+			break;
+		case 'N' :
+			colors = false;
+			break;
+		case 'C' :
+			if (optarg == NULL || !strcmp(optarg, "auto"))
+				break; /* nothing to do, tty detection was done
+					  before parsing options */
+			else if (!strcmp(optarg, "never"))
+				colors = false;
+			else if (!strcmp(optarg, "always"))
+				colors = true;
+			else {
+				fprintf(stderr, "Unknown color: %s\n", optarg);
+				show_help(&data, argv[0], true);
+				return -1;
+			}
+			break;
+		default:
+			show_help(&data, argv[0], true);
+			return -1;
+		}
+	}
+
+	if (optind < argc)
+		data.pattern = argv[optind++];
+
+	data.loop = pw_main_loop_new(NULL);
+	if (data.loop == NULL) {
+		fprintf(stderr, "can't create main loop: %m\n");
+		return -1;
+	}
+
+	l = pw_main_loop_get_loop(data.loop);
+	pw_loop_add_signal(l, SIGINT, do_quit, &data);
+	pw_loop_add_signal(l, SIGTERM, do_quit, &data);
+
+	data.context = pw_context_new(l, NULL, 0);
+	if (data.context == NULL) {
+		fprintf(stderr, "can't create context: %m\n");
+		return -1;
+	}
+
+	data.core = pw_context_connect(data.context,
+			pw_properties_new(
+				PW_KEY_REMOTE_NAME, opt_remote,
+				NULL),
+			0);
+	if (data.core == NULL) {
+		fprintf(stderr, "can't connect: %m\n");
+		return -1;
+	}
+
+	spa_list_init(&data.object_list);
+
+	pw_core_add_listener(data.core,
+			&data.core_listener,
+			&core_events, &data);
+	data.registry = pw_core_get_registry(data.core,
+			PW_VERSION_REGISTRY, 0);
+	pw_registry_add_listener(data.registry,
+			&data.registry_listener,
+			&registry_events, &data);
+
+	pw_main_loop_run(data.loop);
+
+	spa_list_consume(o, &data.object_list, link)
+		object_destroy(o);
+	if (data.info)
+		pw_core_info_free(data.info);
+
+	spa_hook_remove(&data.registry_listener);
+	pw_proxy_destroy((struct pw_proxy*)data.registry);
+	spa_hook_remove(&data.core_listener);
+	pw_context_destroy(data.context);
+	pw_main_loop_destroy(data.loop);
+	pw_deinit();
+
+	return 0;
+}