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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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12
spa/plugins/alsa/alsa-pcm-source.c
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@ -457,12 +457,7 @@ impl_node_port_enum_params(void *object, int seq,
case SPA_PARAM_Latency:
switch (result.index) {
case 0:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_ParamLatency, id,
SPA_PARAM_LATENCY_direction, SPA_POD_Id(direction),
SPA_PARAM_LATENCY_quantum, SPA_POD_Float(this->latency_quantum),
SPA_PARAM_LATENCY_min, SPA_POD_Int(this->latency),
SPA_PARAM_LATENCY_max, SPA_POD_Int(this->latency));
param = spa_latency_build(&b, id, &this->latency);
break;
default:
return 0;
@ -794,8 +789,9 @@ impl_init(const struct spa_handle_factory *factory,
spa_hook_list_init(&this->hooks);
this->stream = SND_PCM_STREAM_CAPTURE;
this->latency_quantum = 1.0f;
this->latency = SPA_LATENCY_INFO(SPA_DIRECTION_OUTPUT);
this->latency.min_quantum = 1.0f;
this->latency.max_quantum = 1.0f;
this->info_all = SPA_NODE_CHANGE_MASK_FLAGS |
SPA_NODE_CHANGE_MASK_PROPS |