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spa: add some latency helpers

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Add more fields to the latency object.
Add methods to create, parse and process latency info.
This commit is contained in:
Wim Taymans 2021-05-24 18:01:19 +02:00
parent 0779862cda
commit b9b89b92b2
15 changed files with 245 additions and 145 deletions
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35
pipewire-jack/src/pipewire-jack.c
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@ -142,9 +142,7 @@ struct object {
struct port *port;
bool is_monitor;
struct object *node;
float latency_quantum[2];
uint32_t latency_min[2];
uint32_t latency_max[2];
struct spa_latency_info latency[2];
} port;
};
struct pw_proxy *proxy;
@ -2188,22 +2186,10 @@ static void port_param(void *object, int seq,
switch (id) {
case SPA_PARAM_Latency:
{
uint32_t direction;
float latency_quantum;
uint32_t latency_min, latency_max;
if (spa_pod_parse_object(param,
SPA_TYPE_OBJECT_ParamLatency, NULL,
SPA_PARAM_LATENCY_direction,SPA_POD_Id(&direction),
SPA_PARAM_LATENCY_quantum,SPA_POD_Float(&latency_quantum),
SPA_PARAM_LATENCY_min, SPA_POD_Int(&latency_min),
SPA_PARAM_LATENCY_max, SPA_POD_Int(&latency_max)) < 0)
struct spa_latency_info info;
if (spa_latency_parse(param, &info) < 0)
return;
direction &= 1;
o->port.latency_quantum[direction] = latency_quantum;
o->port.latency_min[direction] = latency_min;
o->port.latency_max[direction] = latency_max;
o->port.latency[info.direction] = info;
break;
}
default:
@ -4422,8 +4408,9 @@ void jack_port_get_latency_range (jack_port_t *port, jack_latency_callback_mode_
{
struct object *o = (struct object *) port;
struct client *c;
jack_nframes_t nframes;
jack_nframes_t nframes, rate;
int direction;
struct spa_latency_info *info;
spa_return_if_fail(o != NULL);
c = o->client;
@ -4434,9 +4421,13 @@ void jack_port_get_latency_range (jack_port_t *port, jack_latency_callback_mode_
direction = SPA_DIRECTION_INPUT;
nframes = jack_get_buffer_size((jack_client_t*)c);
nframes *= o->port.latency_quantum[direction];
range->min = nframes + o->port.latency_min[direction];
range->max = nframes + o->port.latency_max[direction];
rate = jack_get_sample_rate((jack_client_t*)c);
info = &o->port.latency[direction];
range->min = (info->min_quantum * nframes) +
info->min_rate + (info->min_ns * rate) / SPA_NSEC_PER_SEC;
range->max = (info->max_quantum * nframes) +
info->max_rate + (info->max_ns * rate) / SPA_NSEC_PER_SEC;
}
SPA_EXPORT