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...

struct	spa_io_async_buffers
	async buffers 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) /* graph is freewheeling */

#define	SPA_IO_CLOCK_FLAG_XRUN_RECOVER (1u<<1) /* recovering from xrun */

#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

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

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

#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 , SPA_IO_AsyncBuffers }
	IO areas. More...

enum	spa_io_position_state { SPA_IO_POSITION_STATE_STOPPED , SPA_IO_POSITION_STATE_STARTING , SPA_IO_POSITION_STATE_RUNNING }

Detailed Description

Data Structures