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69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
/* Simple Plugin API */
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/* SPDX-FileCopyrightText: Copyright © 2023 Wim Taymans */
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/* SPDX-License-Identifier: MIT */
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#ifndef SPA_PARAM_LATENY_H
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#define SPA_PARAM_LATENY_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \addtogroup spa_param
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* \{
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*/
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#include <spa/param/param.h>
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/** properties for SPA_TYPE_OBJECT_ParamLatency */
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enum spa_param_latency {
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SPA_PARAM_LATENCY_START,
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SPA_PARAM_LATENCY_direction, /**< direction, input/output (Id enum spa_direction) */
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SPA_PARAM_LATENCY_minQuantum, /**< min latency relative to quantum (Float) */
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SPA_PARAM_LATENCY_maxQuantum, /**< max latency relative to quantum (Float) */
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SPA_PARAM_LATENCY_minRate, /**< min latency (Int) relative to rate */
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SPA_PARAM_LATENCY_maxRate, /**< max latency (Int) relative to rate */
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SPA_PARAM_LATENCY_minNs, /**< min latency (Long) in nanoseconds */
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SPA_PARAM_LATENCY_maxNs, /**< max latency (Long) in nanoseconds */
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};
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/** helper structure for managing latency objects */
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struct spa_latency_info {
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enum spa_direction direction;
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float min_quantum;
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float max_quantum;
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uint32_t min_rate;
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uint32_t max_rate;
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uint64_t min_ns;
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uint64_t max_ns;
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};
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#define SPA_LATENCY_INFO(dir,...) ((struct spa_latency_info) { .direction = (dir), ## __VA_ARGS__ })
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/** properties for SPA_TYPE_OBJECT_ParamProcessLatency */
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enum spa_param_process_latency {
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SPA_PARAM_PROCESS_LATENCY_START,
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SPA_PARAM_PROCESS_LATENCY_quantum, /**< latency relative to quantum (Float) */
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SPA_PARAM_PROCESS_LATENCY_rate, /**< latency (Int) relative to rate */
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SPA_PARAM_PROCESS_LATENCY_ns, /**< latency (Long) in nanoseconds */
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};
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/** Helper structure for managing process latency objects */
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struct spa_process_latency_info {
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float quantum;
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uint32_t rate;
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uint64_t ns;
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};
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#define SPA_PROCESS_LATENCY_INFO_INIT(...) ((struct spa_process_latency_info) { __VA_ARGS__ })
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/**
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* \}
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*/
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* SPA_PARAM_LATENY_H */
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