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dsp: make separate nodes for sinks and sources

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Make separate nodes for sinks and sources
Add aliases for ports
This commit is contained in:
Wim Taymans 2018-02-16 12:02:39 +01:00
parent 8c4bb3a104
commit 3db9a44679
1 changed files with 45 additions and 14 deletions
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59
src/modules/module-audio-dsp.c
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@ -68,7 +68,7 @@ struct impl {
struct spa_hook module_listener;
struct pw_properties *properties;
int port_count[2];
int node_count;
struct spa_list node_list;
};
@ -125,6 +125,8 @@ struct node {
int n_in_ports;
struct port *out_ports[MAX_PORTS];
int n_out_ports;
int port_count[2];
};
/** \endcond */
@ -714,14 +716,19 @@ static struct port *make_port(struct node *n, enum pw_direction direction,
return p;
}
static struct pw_node *make_node(struct impl *impl, enum pw_direction direction)
static struct pw_node *make_node(struct impl *impl, const struct pw_properties *props,
enum pw_direction direction)
{
struct pw_node *node;
struct node *n;
struct port *p;
const char *alias;
char node_name[128];
int i;
node = pw_node_new(impl->core, "dsp", NULL, sizeof(struct node));
snprintf(node_name, sizeof(node_name), "system%d", impl->node_count++);
node = pw_node_new(impl->core, node_name, NULL, sizeof(struct node));
if (node == NULL)
goto error;
@ -734,6 +741,9 @@ static struct pw_node *make_node(struct impl *impl, enum pw_direction direction)
n->buffer_size = 1024 / sizeof(float);
pw_node_set_implementation(node, &n->node_impl);
if ((alias = pw_properties_get(props, "alsa.card")) == NULL)
goto error;
p = make_port(n, direction, 0, 0, NULL);
if (p == NULL)
goto error_free_node;
@ -741,16 +751,23 @@ static struct pw_node *make_node(struct impl *impl, enum pw_direction direction)
direction = pw_direction_reverse(direction);
for (i = 0; i < n->channels; i++) {
char port_name[128];
char port_name[128], alias_name[128];
snprintf(port_name, sizeof(port_name), "%s_%d",
direction == PW_DIRECTION_INPUT ? "playback" : "capture",
impl->port_count[direction]++);
n->port_count[direction]);
snprintf(alias_name, sizeof(alias_name), "alsa_pcm:%s:%s%d",
alias,
direction == PW_DIRECTION_INPUT ? "in" : "out",
n->port_count[direction]);
n->port_count[direction]++;
p = make_port(n, direction, i,
PORT_FLAG_DSP | PORT_FLAG_RAW_F32,
pw_properties_new(
"port.dsp", "1",
"port.name", port_name,
"port.alias1", alias_name,
NULL));
if (p == NULL)
goto error_free_node;
@ -788,15 +805,23 @@ static int on_global(void *data, struct pw_global *global)
if ((str = pw_properties_get(properties, "media.class")) == NULL)
return 0;
if (strcmp(str, "Audio/Sink") != 0)
return 0;
if ((ip = pw_node_get_free_port(n, PW_DIRECTION_INPUT)) == NULL)
return 0;
node = make_node(impl, PW_DIRECTION_OUTPUT);
op = pw_node_get_free_port(node, PW_DIRECTION_OUTPUT);
if (op == NULL)
if (strcmp(str, "Audio/Sink") == 0) {
if ((ip = pw_node_get_free_port(n, PW_DIRECTION_INPUT)) == NULL)
return 0;
if ((node = make_node(impl, properties, PW_DIRECTION_OUTPUT)) == NULL)
return 0;
if ((op = pw_node_get_free_port(node, PW_DIRECTION_OUTPUT)) == NULL)
return 0;
}
else if (strcmp(str, "Audio/Source") == 0) {
if ((op = pw_node_get_free_port(n, PW_DIRECTION_OUTPUT)) == NULL)
return 0;
if ((node = make_node(impl, properties, PW_DIRECTION_INPUT)) == NULL)
return 0;
if ((ip = pw_node_get_free_port(node, PW_DIRECTION_INPUT)) == NULL)
return 0;
}
else
return 0;
link = pw_link_new(impl->core,
@ -805,6 +830,12 @@ static int on_global(void *data, struct pw_global *global)
NULL,
pw_properties_new(PW_LINK_PROP_PASSIVE, "true", NULL),
&error, 0);
if (link == NULL) {
pw_log_error("can't create link: %s", error);
free(error);
return 0;
}
pw_link_register(link, NULL, pw_module_get_global(impl->module), NULL);
return 0;