195 lines
4.8 KiB
C
195 lines
4.8 KiB
C
/* WirePlumber
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*
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* Copyright © 2019 Collabora Ltd.
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* @author Julian Bouzas <julian.bouzas@collabora.com>
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*
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* SPDX-License-Identifier: MIT
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*/
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#include "error.h"
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#include "proxy-port.h"
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#include <pipewire/pipewire.h>
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#include <spa/param/audio/format-utils.h>
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struct _WpProxyPort
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{
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WpProxy parent;
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/* The task to signal the proxy is initialized */
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GTask *init_task;
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/* The port proxy listener */
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struct spa_hook listener;
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/* The port info */
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struct pw_port_info *info;
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/* The port format */
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uint32_t media_type;
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uint32_t media_subtype;
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struct spa_audio_info_raw format;
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};
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static void wp_proxy_port_async_initable_init (gpointer iface,
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gpointer iface_data);
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G_DEFINE_TYPE_WITH_CODE (WpProxyPort, wp_proxy_port, WP_TYPE_PROXY,
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G_IMPLEMENT_INTERFACE (G_TYPE_ASYNC_INITABLE,
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wp_proxy_port_async_initable_init))
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static void
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port_event_info(void *data, const struct pw_port_info *info)
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{
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WpProxyPort *self = data;
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/* Update the port info */
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self->info = pw_port_info_update(self->info, info);
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}
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static void
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port_event_param(void *data, int seq, uint32_t id, uint32_t index,
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uint32_t next, const struct spa_pod *param)
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{
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WpProxyPort *self = data;
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/* Make sure the task is valid */
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if (!self->init_task)
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return;
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/* Only handle EnumFormat */
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if (id != SPA_PARAM_EnumFormat)
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return;
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/* Parse the format */
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spa_format_parse(param, &self->media_type, &self->media_subtype);
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/* Only handle raw audio formats for now */
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if (self->media_type != SPA_MEDIA_TYPE_audio ||
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self->media_subtype != SPA_MEDIA_SUBTYPE_raw)
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return;
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/* Parse the raw audio format */
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spa_pod_fixate((struct spa_pod*)param);
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spa_format_audio_raw_parse(param, &self->format);
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/* Finish the creation of the proxy */
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g_task_return_boolean (self->init_task, TRUE);
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g_clear_object (&self->init_task);
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}
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static const struct pw_port_proxy_events port_events = {
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PW_VERSION_PORT_PROXY_EVENTS,
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.info = port_event_info,
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.param = port_event_param,
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};
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static void
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wp_proxy_port_finalize (GObject * object)
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{
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WpProxyPort *self = WP_PROXY_PORT(object);
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/* Destroy the init task */
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g_clear_object (&self->init_task);
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/* Clear the indo */
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if (self->info) {
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pw_port_info_free(self->info);
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self->info = NULL;
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}
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G_OBJECT_CLASS (wp_proxy_port_parent_class)->finalize (object);
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}
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static void
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wp_proxy_port_destroy (WpProxy * proxy)
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{
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WpProxyPort *self = WP_PROXY_PORT(proxy);
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GError *error = NULL;
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/* Return error if the pipewire destruction happened while the async creation
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* of this proxy port object has not finished */
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if (self->init_task) {
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g_set_error (&error, WP_DOMAIN_LIBRARY, WP_LIBRARY_ERROR_OPERATION_FAILED,
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"pipewire port proxy destroyed before finishing");
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g_task_return_error (self->init_task, error);
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g_clear_object (&self->init_task);
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}
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}
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static void
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wp_proxy_port_init_async (GAsyncInitable *initable, int io_priority,
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GCancellable *cancellable, GAsyncReadyCallback callback, gpointer data)
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{
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WpProxyPort *self = WP_PROXY_PORT(initable);
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WpProxy *wp_proxy = WP_PROXY(initable);
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struct pw_port_proxy *proxy = NULL;
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/* Create the async task */
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self->init_task = g_task_new (initable, cancellable, callback, data);
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/* Get the proxy from the base class */
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proxy = wp_proxy_get_pw_proxy(wp_proxy);
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/* Add the port proxy listener */
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pw_port_proxy_add_listener(proxy, &self->listener, &port_events, self);
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/* Emit the EnumFormat param */
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pw_port_proxy_enum_params((struct pw_port_proxy*)proxy, 0,
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SPA_PARAM_EnumFormat, 0, -1, NULL);
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}
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static void
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wp_proxy_port_async_initable_init (gpointer iface, gpointer iface_data)
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{
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GAsyncInitableIface *ai_iface = iface;
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/* Only set the init_async */
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ai_iface->init_async = wp_proxy_port_init_async;
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}
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static void
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wp_proxy_port_init (WpProxyPort * self)
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{
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}
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static void
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wp_proxy_port_class_init (WpProxyPortClass * klass)
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{
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GObjectClass *object_class = (GObjectClass *) klass;
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WpProxyClass *proxy_class = (WpProxyClass *) klass;
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object_class->finalize = wp_proxy_port_finalize;
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proxy_class->destroy = wp_proxy_port_destroy;
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}
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void
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wp_proxy_port_new (guint global_id, gpointer proxy,
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GAsyncReadyCallback callback, gpointer user_data)
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{
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g_async_initable_new_async (
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WP_TYPE_PROXY_PORT, G_PRIORITY_DEFAULT, NULL, callback, user_data,
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"global-id", global_id,
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"pw-proxy", proxy,
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NULL);
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}
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WpProxyPort *
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wp_proxy_port_new_finish(GObject *initable, GAsyncResult *res, GError **error)
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{
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GAsyncInitable *ai = G_ASYNC_INITABLE(initable);
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return WP_PROXY_PORT(g_async_initable_new_finish(ai, res, error));
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}
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const struct pw_port_info *
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wp_proxy_port_get_info (WpProxyPort * self)
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{
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return self->info;
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}
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const struct spa_audio_info_raw *
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wp_proxy_port_get_format (WpProxyPort * self)
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{
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return &self->format;
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}
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