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media-session: keep more info about ports

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Parse the DSP type and the channel and keep it around
This commit is contained in:
Wim Taymans 2020-07-22 11:27:23 +02:00
parent 0ca4a5621c
commit f6753eefc3
2 changed files with 25 additions and 2 deletions
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22
src/examples/media-session/media-session.c
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@ -640,6 +640,16 @@ static const struct pw_port_events port_events = {
.info = port_event_info,
};
static enum spa_audio_channel find_channel(const char *name)
{
int i;
for (i = 0; spa_type_audio_channel[i].name; i++) {
if (strcmp(name, spa_debug_type_short_name(spa_type_audio_channel[i].name)) == 0)
return spa_type_audio_channel[i].type;
}
return SPA_AUDIO_CHANNEL_UNKNOWN;
}
static int port_init(void *object)
{
struct sm_port *port = object;
@ -651,11 +661,19 @@ static int port_init(void *object)
if ((str = pw_properties_get(props, PW_KEY_PORT_DIRECTION)) != NULL)
port->direction = strcmp(str, "out") == 0 ?
PW_DIRECTION_OUTPUT : PW_DIRECTION_INPUT;
if ((str = pw_properties_get(props, PW_KEY_FORMAT_DSP)) != NULL) {
if (strcmp(str, "32 bit float mono audio") == 0)
port->type = SM_PORT_TYPE_DSP_AUDIO;
else if (strcmp(str, "8 bit raw midi") == 0)
port->type = SM_PORT_TYPE_DSP_MIDI;
}
if ((str = pw_properties_get(props, PW_KEY_AUDIO_CHANNEL)) != NULL)
port->channel = find_channel(str);
if ((str = pw_properties_get(props, PW_KEY_NODE_ID)) != NULL)
port->node = find_object(impl, atoi(str));
pw_log_debug(NAME" %p: port %d parent node %s (%p) direction:%d", impl,
port->obj.id, str, port->node, port->direction);
pw_log_debug(NAME" %p: port %d parent node %s (%p) direction:%d type:%d", impl,
port->obj.id, str, port->node, port->direction, port->type);
if (port->node) {
spa_list_append(&port->node->port_list, &port->link);
port->node->obj.avail |= SM_NODE_CHANGE_MASK_PORTS;

5
src/examples/media-session/media-session.h
View file

@ -153,6 +153,11 @@ struct sm_port {
struct sm_object obj;
enum pw_direction direction;
#define SM_PORT_TYPE_UNKNOWN 0
#define SM_PORT_TYPE_DSP_AUDIO 1
#define SM_PORT_TYPE_DSP_MIDI 2
uint32_t type;
uint32_t channel;
struct sm_node *node;
struct spa_list link; /**< link in node port_list */