Data Structures
struct	spa_io_buffers
	IO area to exchange buffers. More...

struct	spa_io_memory
	IO area to exchange a memory region. More...

struct	spa_io_range
	A range, suitable for input ports that can suggest a range to output ports. More...

struct	spa_io_clock
	Absolute time reporting. More...

struct	spa_io_video_size

struct	spa_io_latency
	latency reporting More...

struct	spa_io_sequence
	control stream, io area for SPA_IO_Control and SPA_IO_Notify More...

struct	spa_io_segment_bar
	bar and beat segment More...

struct	spa_io_segment_video
	video frame segment More...

struct	spa_io_segment
	A segment converts a running time to a segment (stream) position. More...

struct	spa_io_position
	The position information adds extra meaning to the raw clock times. More...

struct	spa_io_rate_match
	rate matching More...

Macros
#define	SPA_STATUS_OK 0

#define	SPA_STATUS_NEED_DATA (1<<0)

#define	SPA_STATUS_HAVE_DATA (1<<1)

#define	SPA_STATUS_STOPPED (1<<2)

#define	SPA_STATUS_DRAINED (1<<3)

#define	SPA_IO_BUFFERS_INIT (struct spa_io_buffers) { SPA_STATUS_OK, SPA_ID_INVALID, }

#define	SPA_IO_MEMORY_INIT (struct spa_io_memory) { SPA_STATUS_OK, 0, NULL, }

#define	SPA_IO_CLOCK_FLAG_FREEWHEEL (1u<<0)

#define	SPA_IO_VIDEO_SIZE_VALID (1<<0)

#define	SPA_IO_SEGMENT_BAR_FLAG_VALID (1<<0)

#define	SPA_IO_SEGMENT_VIDEO_FLAG_VALID (1<<0)

#define	SPA_IO_SEGMENT_VIDEO_FLAG_DROP_FRAME (1<<1)

#define	SPA_IO_SEGMENT_VIDEO_FLAG_PULL_DOWN (1<<2)

#define	SPA_IO_SEGMENT_VIDEO_FLAG_INTERLACED (1<<3)

#define	SPA_IO_SEGMENT_FLAG_LOOPING (1<<0)
	after the duration, the segment repeats More...

#define	SPA_IO_SEGMENT_FLAG_NO_POSITION (1<<1)
	position is invalid. More...

#define	SPA_IO_POSITION_MAX_SEGMENTS 8
	the maximum number of segments visible in the future More...

#define	SPA_IO_RATE_MATCH_FLAG_ACTIVE (1 << 0)

Enumerations
enum	spa_io_type { SPA_IO_Invalid, SPA_IO_Buffers, SPA_IO_Range, SPA_IO_Clock, SPA_IO_Latency, SPA_IO_Control, SPA_IO_Notify, SPA_IO_Position, SPA_IO_RateMatch, SPA_IO_Memory }
	IO areas. More...

enum	spa_io_position_state { SPA_IO_POSITION_STATE_STOPPED, SPA_IO_POSITION_STATE_STARTING, SPA_IO_POSITION_STATE_RUNNING }

Macro Definition Documentation

◆ SPA_IO_CLOCK_FLAG_FREEWHEEL

#define SPA_IO_CLOCK_FLAG_FREEWHEEL (1u<<0)

◆ SPA_IO_RATE_MATCH_FLAG_ACTIVE

#define SPA_IO_RATE_MATCH_FLAG_ACTIVE (1 << 0)

◆ SPA_IO_SEGMENT_BAR_FLAG_VALID

#define SPA_IO_SEGMENT_BAR_FLAG_VALID (1<<0)

◆ SPA_IO_SEGMENT_FLAG_LOOPING

#define SPA_IO_SEGMENT_FLAG_LOOPING (1<<0)

after the duration, the segment repeats

◆ SPA_IO_SEGMENT_FLAG_NO_POSITION

#define SPA_IO_SEGMENT_FLAG_NO_POSITION (1<<1)

position is invalid.

The position can be invalid after a seek, for example, when the exact mapping of the extra segment info (bar, video, ...) to position has not been determined yet

◆ SPA_IO_SEGMENT_VIDEO_FLAG_DROP_FRAME

#define SPA_IO_SEGMENT_VIDEO_FLAG_DROP_FRAME (1<<1)

◆ SPA_IO_SEGMENT_VIDEO_FLAG_INTERLACED

#define SPA_IO_SEGMENT_VIDEO_FLAG_INTERLACED (1<<3)

◆ SPA_IO_SEGMENT_VIDEO_FLAG_PULL_DOWN

#define SPA_IO_SEGMENT_VIDEO_FLAG_PULL_DOWN (1<<2)

◆ SPA_IO_SEGMENT_VIDEO_FLAG_VALID

#define SPA_IO_SEGMENT_VIDEO_FLAG_VALID (1<<0)

◆ SPA_IO_VIDEO_SIZE_VALID

#define SPA_IO_VIDEO_SIZE_VALID (1<<0)

◆ SPA_STATUS_DRAINED

#define SPA_STATUS_DRAINED (1<<3)

◆ SPA_STATUS_HAVE_DATA

#define SPA_STATUS_HAVE_DATA (1<<1)

◆ SPA_STATUS_NEED_DATA

#define SPA_STATUS_NEED_DATA (1<<0)

◆ SPA_STATUS_OK

#define SPA_STATUS_OK 0

◆ SPA_STATUS_STOPPED

#define SPA_STATUS_STOPPED (1<<2)

Data Structures

Macros

Enumerations