param.h File Reference
SPA » Parameters

`spa/param/param.h` More...

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## Data Structures

struct | spa_param_info
| information about a parameter More...

## Macros

#define | SPA_PARAM_INFO_SERIAL (1<<0)
| bit to signal update even when the read/write flags don't change More...
#define | SPA_PARAM_INFO_READ (1<<1)
#define | SPA_PARAM_INFO_WRITE (1<<2)
#define | SPA_PARAM_INFO_READWRITE (SPA_PARAM_INFO_WRITE|SPA_PARAM_INFO_READ)
#define | SPA_PARAM_INFO(id, flags) (struct spa_param_info){ (id), (flags) }

## Enumerations

enum | spa_param_type { SPA_PARAM_Invalid , SPA_PARAM_PropInfo , SPA_PARAM_Props , SPA_PARAM_EnumFormat , SPA_PARAM_Format , SPA_PARAM_Buffers , SPA_PARAM_Meta , SPA_PARAM_IO , SPA_PARAM_EnumProfile , SPA_PARAM_Profile , SPA_PARAM_EnumPortConfig , SPA_PARAM_PortConfig , SPA_PARAM_EnumRoute , SPA_PARAM_Route , SPA_PARAM_Control , SPA_PARAM_Latency , SPA_PARAM_ProcessLatency }
| different parameter types that can be queried More...
enum | spa_param_buffers { SPA_PARAM_BUFFERS_START , SPA_PARAM_BUFFERS_buffers , SPA_PARAM_BUFFERS_blocks , SPA_PARAM_BUFFERS_size , SPA_PARAM_BUFFERS_stride , SPA_PARAM_BUFFERS_align , SPA_PARAM_BUFFERS_dataType }
| properties for SPA_TYPE_OBJECT_ParamBuffers More...
enum | spa_param_meta { SPA_PARAM_META_START , SPA_PARAM_META_type , SPA_PARAM_META_size }
| properties for SPA_TYPE_OBJECT_ParamMeta More...
enum | spa_param_io { SPA_PARAM_IO_START , SPA_PARAM_IO_id , SPA_PARAM_IO_size }
| properties for SPA_TYPE_OBJECT_ParamIO More...
enum | spa_param_availability { SPA_PARAM_AVAILABILITY_unknown , SPA_PARAM_AVAILABILITY_no , SPA_PARAM_AVAILABILITY_yes }
enum | spa_param_profile { SPA_PARAM_PROFILE_START , SPA_PARAM_PROFILE_index , SPA_PARAM_PROFILE_name , SPA_PARAM_PROFILE_description , SPA_PARAM_PROFILE_priority , SPA_PARAM_PROFILE_available , SPA_PARAM_PROFILE_info , SPA_PARAM_PROFILE_classes , SPA_PARAM_PROFILE_save }
| properties for SPA_TYPE_OBJECT_ParamProfile More...
enum | spa_param_port_config_mode { SPA_PARAM_PORT_CONFIG_MODE_none , SPA_PARAM_PORT_CONFIG_MODE_passthrough , SPA_PARAM_PORT_CONFIG_MODE_convert , SPA_PARAM_PORT_CONFIG_MODE_dsp }
enum | spa_param_port_config { SPA_PARAM_PORT_CONFIG_START , SPA_PARAM_PORT_CONFIG_direction , SPA_PARAM_PORT_CONFIG_mode , SPA_PARAM_PORT_CONFIG_monitor , SPA_PARAM_PORT_CONFIG_control , SPA_PARAM_PORT_CONFIG_format }
| properties for SPA_TYPE_OBJECT_ParamPortConfig More...
enum | spa_param_route { SPA_PARAM_ROUTE_START , SPA_PARAM_ROUTE_index , SPA_PARAM_ROUTE_direction , SPA_PARAM_ROUTE_device , SPA_PARAM_ROUTE_name , SPA_PARAM_ROUTE_description , SPA_PARAM_ROUTE_priority , SPA_PARAM_ROUTE_available , SPA_PARAM_ROUTE_info , SPA_PARAM_ROUTE_profiles , SPA_PARAM_ROUTE_props , SPA_PARAM_ROUTE_devices , SPA_PARAM_ROUTE_profile , SPA_PARAM_ROUTE_save }
| properties for SPA_TYPE_OBJECT_ParamRoute More...
enum | spa_param_latency { SPA_PARAM_LATENCY_START , SPA_PARAM_LATENCY_direction , SPA_PARAM_LATENCY_minQuantum , SPA_PARAM_LATENCY_maxQuantum , SPA_PARAM_LATENCY_minRate , SPA_PARAM_LATENCY_maxRate , SPA_PARAM_LATENCY_minNs , SPA_PARAM_LATENCY_maxNs }
| properties for SPA_TYPE_OBJECT_ParamLatency More...
enum | spa_param_process_latency { SPA_PARAM_PROCESS_LATENCY_START , SPA_PARAM_PROCESS_LATENCY_quantum , SPA_PARAM_PROCESS_LATENCY_rate , SPA_PARAM_PROCESS_LATENCY_ns }
| properties for SPA_TYPE_OBJECT_ParamProcessLatency More...
enum | spa_param_bitorder { SPA_PARAM_BITORDER_unknown , SPA_PARAM_BITORDER_msb , SPA_PARAM_BITORDER_lsb }

## Detailed Description

`spa/param/param.h`