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io: add latency io area

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This commit is contained in:
Wim Taymans 2018-07-19 15:17:21 +02:00
parent 0d148654c0
commit b67fb6fa5b
1 changed files with 12 additions and 0 deletions
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12
spa/include/spa/node/io.h
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@ -44,6 +44,9 @@ extern "C" {
/** IO area with clock information */ /** IO area with clock information */
#define SPA_TYPE_IO__Clock SPA_TYPE_IO_BASE "Clock" #define SPA_TYPE_IO__Clock SPA_TYPE_IO_BASE "Clock"
/** IO area with latency information */
#define SPA_TYPE_IO__Latency SPA_TYPE_IO_BASE "Latency"
/** Buffers IO area /** Buffers IO area
* *
* IO information for a port on a node. This is allocated * IO information for a port on a node. This is allocated
@ -82,11 +85,19 @@ struct spa_io_clock {
subtract for playback */ subtract for playback */
}; };
/** latency reporting */
struct spa_io_latency {
struct spa_fraction rate; /**< rate for min/max */
uint64_t min; /**< min latency */
uint64_t max; /**< max latency */
};
struct spa_type_io { struct spa_type_io {
uint32_t Buffers; uint32_t Buffers;
uint32_t ControlRange; uint32_t ControlRange;
uint32_t Prop; uint32_t Prop;
uint32_t Clock; uint32_t Clock;
uint32_t Latency;
}; };
static inline void spa_type_io_map(struct spa_type_map *map, struct spa_type_io *type) static inline void spa_type_io_map(struct spa_type_map *map, struct spa_type_io *type)
@ -96,6 +107,7 @@ static inline void spa_type_io_map(struct spa_type_map *map, struct spa_type_io
type->ControlRange = spa_type_map_get_id(map, SPA_TYPE_IO_CONTROL__Range); type->ControlRange = spa_type_map_get_id(map, SPA_TYPE_IO_CONTROL__Range);
type->Prop = spa_type_map_get_id(map, SPA_TYPE_IO__Prop); type->Prop = spa_type_map_get_id(map, SPA_TYPE_IO__Prop);
type->Clock = spa_type_map_get_id(map, SPA_TYPE_IO__Clock); type->Clock = spa_type_map_get_id(map, SPA_TYPE_IO__Clock);
type->Latency = spa_type_map_get_id(map, SPA_TYPE_IO__Latency);
} }
} }