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filter-chain: support notify to control links as well

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If we can't find data ports to link, try to find notify/control ports
when making a link.

When applying the link, place the output of the notify as the control
data.
This commit is contained in:
Wim Taymans 2023-06-28 15:15:07 +02:00
parent c671c46b87
commit bddfc8c46e
1 changed files with 29 additions and 9 deletions
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38
src/modules/module-filter-chain.c
View file

@ -1603,7 +1603,7 @@ static int parse_link(struct graph *graph, struct spa_json *json)
char output[256] = "";
char input[256] = "";
const char *val;
struct node *def_node;
struct node *def_in_node, *def_out_node;
struct port *in_port, *out_port;
struct link *link;
@ -1628,16 +1628,25 @@ static int parse_link(struct graph *graph, struct spa_json *json)
else if (spa_json_next(json, &val) < 0)
break;
}
def_node = spa_list_first(&graph->node_list, struct node, link);
if ((out_port = find_port(def_node, output, FC_PORT_OUTPUT)) == NULL) {
pw_log_error("unknown output port %s", output);
return -ENOENT;
}
def_node = spa_list_last(&graph->node_list, struct node, link);
if ((in_port = find_port(def_node, input, FC_PORT_INPUT)) == NULL) {
pw_log_error("unknown input port %s", input);
def_out_node = spa_list_first(&graph->node_list, struct node, link);
def_in_node = spa_list_last(&graph->node_list, struct node, link);
out_port = find_port(def_out_node, output, FC_PORT_OUTPUT);
in_port = find_port(def_in_node, input, FC_PORT_INPUT);
if (out_port == NULL && out_port == NULL) {
/* try control ports */
out_port = find_port(def_out_node, output, FC_PORT_OUTPUT | FC_PORT_CONTROL);
in_port = find_port(def_in_node, input, FC_PORT_INPUT | FC_PORT_CONTROL);
}
if (in_port == NULL || out_port == NULL) {
if (out_port == NULL)
pw_log_error("unknown output port %s", output);
if (in_port == NULL)
pw_log_error("unknown input port %s", input);
return -ENOENT;
}
if (in_port->n_links > 0) {
pw_log_info("Can't have more than 1 link to %s, use a mixer", input);
return -ENOTSUP;
@ -1935,9 +1944,20 @@ static int graph_instantiate(struct graph *graph)
for (j = 0; j < desc->n_control; j++) {
port = &node->control_port[j];
d->connect_port(node->hndl[i], port->p, &port->control_data);
spa_list_for_each(link, &port->link_list, input_link) {
struct port *peer = link->output;
pw_log_info("connect control port %s[%d]:%s %p",
node->name, i, d->ports[port->p].name,
&peer->control_data);
d->connect_port(node->hndl[i], port->p, &peer->control_data);
}
}
for (j = 0; j < desc->n_notify; j++) {
port = &node->notify_port[j];
pw_log_info("connect notify port %s[%d]:%s %p",
node->name, i, d->ports[port->p].name,
&port->control_data);
d->connect_port(node->hndl[i], port->p, &port->control_data);
}
if (d->activate)