PipeWire  0.3.36
param.h File Reference
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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 }
 

Macro Definition Documentation

◆ SPA_PARAM_INFO_READ

#define SPA_PARAM_INFO_READ   (1<<1)

◆ SPA_PARAM_INFO_READWRITE

#define SPA_PARAM_INFO_READWRITE   (SPA_PARAM_INFO_WRITE|SPA_PARAM_INFO_READ)

◆ SPA_PARAM_INFO_SERIAL

#define SPA_PARAM_INFO_SERIAL   (1<<0)

bit to signal update even when the read/write flags don't change

◆ SPA_PARAM_INFO_WRITE

#define SPA_PARAM_INFO_WRITE   (1<<2)