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Introduce the concept of a Port

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A port is an input or output on a Node.
Channels are created from the ports and inherit the direction of the
port.
do automatic port selection based on the direction and caps and
node/port name.
Simplify stream_connect by passing the direction.
Fix pinossink to connect in setcaps so that we know the format and can
select a good sink to connect to.
This commit is contained in:
Wim Taymans 2016-05-06 13:01:52 +02:00
parent b885d40390
commit ba4ef9b5d9
35 changed files with 1939 additions and 2120 deletions
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74
pinos/server/daemon.c
View file

@ -17,6 +17,8 @@
* Boston, MA 02110-1301, USA.
*/
#include <string.h>
#include <gio/gio.h>
#include "config.h"
@ -380,47 +382,83 @@ pinos_daemon_remove_node (PinosDaemon *daemon,
}
/**
* pinos_daemon_find_node:
* pinos_daemon_find_port:
* @daemon: a #PinosDaemon
* @name: a node name
* @props: node properties
* @name: a port name
* @props: port properties
* @format_filter: a format filter
* @error: location for an error
*
* Find the best node in @daemon that matches the given parameters.
* Find the best port in @daemon that matches the given parameters.
*
* Returns: a #PinosNode or %NULL when no node could be found.
* Returns: a #PinosPort or %NULL when no port could be found.
*/
PinosNode *
pinos_daemon_find_node (PinosDaemon *daemon,
PinosPort *
pinos_daemon_find_port (PinosDaemon *daemon,
PinosDirection direction,
const gchar *name,
PinosProperties *props,
GBytes *format_filter,
GError **error)
{
PinosDaemonPrivate *priv;
PinosNode *best = NULL;
GList *walk;
PinosPort *best = NULL;
GList *node, *port;
gboolean have_name;
g_return_val_if_fail (PINOS_IS_DAEMON (daemon), NULL);
priv = daemon->priv;
for (walk = priv->nodes; walk; walk = g_list_next (walk)) {
PinosNode *n = walk->data;
have_name = name ? strlen (name) > 0 : FALSE;
if (name == NULL) {
best = n;
break;
for (node = priv->nodes; node; node = g_list_next (node)) {
PinosNode *n = node->data;
gboolean node_found = FALSE;
/* we found the node */
if (have_name && g_str_has_suffix (pinos_node_get_object_path (n), name)) {
g_debug ("name \"%s\" matches node %s", name, pinos_node_get_object_path (n));
node_found = TRUE;
}
else if (g_str_has_suffix (pinos_node_get_object_path (n), name))
best = n;
}
for (port = pinos_node_get_ports (n); port; port = g_list_next (port)) {
PinosPort *p = port->data;
PinosDirection dir;
GBytes *format;
g_object_get (p, "direction", &dir, NULL);
if (dir != direction)
continue;
if (have_name && !node_found) {
if (!g_str_has_suffix (pinos_port_get_object_path (p), name))
continue;
g_debug ("name \"%s\" matches port %s", name, pinos_port_get_object_path (p));
best = p;
node_found = TRUE;
break;
}
format = pinos_port_get_formats (p, format_filter, NULL);
if (format != NULL) {
g_debug ("port %s with format %s matches filter %s",
pinos_port_get_object_path (p),
(gchar*)g_bytes_get_data (format, NULL),
format_filter ? (gchar*)g_bytes_get_data (format_filter, NULL) : "ANY");
g_bytes_unref (format);
best = p;
node_found = TRUE;
break;
}
}
if (node_found)
break;
}
if (best == NULL) {
if (error)
*error = g_error_new (G_IO_ERROR,
G_IO_ERROR_NOT_FOUND,
"Node not found");
"No matching Port found");
}
return best;
}