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endpoint: add some useful API for querying info about streams & controls

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This commit is contained in:
George Kiagiadakis 2019-06-18 17:42:06 +03:00
parent ecad76d995
commit ca1453febd
2 changed files with 118 additions and 3 deletions
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113
lib/wp/endpoint.c
View file

@ -425,6 +425,26 @@ wp_endpoint_register_stream (WpEndpoint * self, GVariant * stream)
g_ptr_array_add (priv->streams, g_variant_ref_sink (stream));
}
GVariant *
wp_endpoint_get_stream (WpEndpoint * self, guint32 stream_id)
{
WpEndpointPrivate *priv;
guint32 id;
gint i;
g_return_val_if_fail (WP_IS_ENDPOINT (self), NULL);
priv = wp_endpoint_get_instance_private (self);
for (i = 0; i < priv->streams->len; i++) {
GVariant *v = g_ptr_array_index (priv->streams, i);
if (g_variant_lookup (v, "id", "u", &id) && id == stream_id) {
return g_variant_ref (v);
}
}
return NULL;
}
/**
* wp_endpoint_list_streams:
* @self: the endpoint
@ -445,6 +465,30 @@ wp_endpoint_list_streams (WpEndpoint * self)
(GVariant * const *) priv->streams->pdata, priv->streams->len);
}
guint32
wp_endpoint_find_stream (WpEndpoint * self, const gchar * name)
{
WpEndpointPrivate *priv;
const gchar *tmp = NULL;
guint32 id = WP_STREAM_ID_NONE;
gint i;
g_return_val_if_fail (WP_IS_ENDPOINT (self), WP_STREAM_ID_NONE);
g_return_val_if_fail (name != NULL, WP_STREAM_ID_NONE);
priv = wp_endpoint_get_instance_private (self);
for (i = 0; i < priv->streams->len; i++) {
GVariant *v = g_ptr_array_index (priv->streams, i);
if (g_variant_lookup (v, "name", "&s", &tmp) && !g_strcmp0 (tmp, name)) {
/* found, return the id */
g_variant_lookup (v, "id", "u", &id);
break;
}
}
return id;
}
/**
* wp_endpoint_register_control:
* @self: the endpoint
@ -462,6 +506,26 @@ wp_endpoint_register_control (WpEndpoint * self, GVariant * control)
g_ptr_array_add (priv->controls, g_variant_ref_sink (control));
}
GVariant *
wp_endpoint_get_control (WpEndpoint * self, guint32 control_id)
{
WpEndpointPrivate *priv;
guint32 id;
gint i;
g_return_val_if_fail (WP_IS_ENDPOINT (self), NULL);
priv = wp_endpoint_get_instance_private (self);
for (i = 0; i < priv->controls->len; i++) {
GVariant *v = g_ptr_array_index (priv->controls, i);
if (g_variant_lookup (v, "id", "u", &id) && id == control_id) {
return g_variant_ref (v);
}
}
return NULL;
}
/**
* wp_endpoint_list_controls:
* @self: the endpoint
@ -482,6 +546,44 @@ wp_endpoint_list_controls (WpEndpoint * self)
(GVariant * const *) priv->controls->pdata, priv->controls->len);
}
guint32
wp_endpoint_find_control (WpEndpoint * self, guint32 stream_id,
const gchar * name)
{
WpEndpointPrivate *priv;
const gchar *tmp = NULL;
guint32 tmp_id = WP_STREAM_ID_NONE;
guint32 id = WP_CONTROL_ID_NONE;
gint i;
g_return_val_if_fail (WP_IS_ENDPOINT (self), WP_CONTROL_ID_NONE);
g_return_val_if_fail (name != NULL, WP_CONTROL_ID_NONE);
priv = wp_endpoint_get_instance_private (self);
for (i = 0; i < priv->controls->len; i++) {
GVariant *v = g_ptr_array_index (priv->controls, i);
/*
* if the stream-id exists, it must match @stream_id
* if it doesn't exist, then @stream_id must be NONE
*/
if (g_variant_lookup (v, "stream-id", "u", &tmp_id)) {
if (stream_id != tmp_id)
continue;
} else if (stream_id != WP_STREAM_ID_NONE) {
continue;
}
if (g_variant_lookup (v, "name", "&s", &tmp) && !g_strcmp0 (tmp, name)) {
/* found, return the id */
g_variant_lookup (v, "id", "u", &id);
break;
}
}
return id;
}
/**
* wp_endpoint_get_control_value: (virtual get_control_value)
* @self: the endpoint
@ -522,13 +624,18 @@ gboolean
wp_endpoint_set_control_value (WpEndpoint * self, guint32 control_id,
GVariant * value)
{
gboolean ret = FALSE;
g_return_val_if_fail (WP_IS_ENDPOINT (self), FALSE);
if (WP_ENDPOINT_GET_CLASS (self)->set_control_value)
return WP_ENDPOINT_GET_CLASS (self)->set_control_value (self, control_id,
ret = WP_ENDPOINT_GET_CLASS (self)->set_control_value (self, control_id,
value);
else
return FALSE;
if (g_variant_is_floating (value))
g_variant_unref (value);
return ret;
}
/**

8
lib/wp/endpoint.h
View file

@ -13,6 +13,9 @@
G_BEGIN_DECLS
static const guint32 WP_STREAM_ID_NONE = 0xffffffff;
static const guint32 WP_CONTROL_ID_NONE = 0xffffffff;
#define WP_TYPE_ENDPOINT (wp_endpoint_get_type ())
G_DECLARE_DERIVABLE_TYPE (WpEndpoint, wp_endpoint, WP, ENDPOINT, GObject)
@ -43,10 +46,15 @@ const gchar * wp_endpoint_get_name (WpEndpoint * self);
const gchar * wp_endpoint_get_media_class (WpEndpoint * self);
void wp_endpoint_register_stream (WpEndpoint * self, GVariant * stream);
GVariant * wp_endpoint_get_stream (WpEndpoint * self, guint32 stream_id);
GVariant * wp_endpoint_list_streams (WpEndpoint * self);
guint32 wp_endpoint_find_stream (WpEndpoint * self, const gchar * name);
void wp_endpoint_register_control (WpEndpoint * self, GVariant * control);
GVariant * wp_endpoint_get_control (WpEndpoint * self, guint32 control_id);
GVariant * wp_endpoint_list_controls (WpEndpoint * self);
guint32 wp_endpoint_find_control (WpEndpoint * self, guint32 stream_id,
const gchar * name);
GVariant * wp_endpoint_get_control_value (WpEndpoint * self,
guint32 control_id);