spa_data Struct Reference

Data for a buffer this stays constant for a buffer. More...

Data Fields
uint32_t	type
	memory type, one of enum spa_data_type, when allocating memory, the type contains a bitmask of allowed types. More...
uint32_t	flags
	data flags More...
int64_t	fd
	optional fd for data More...
uint32_t	mapoffset
	offset to map fd at More...
uint32_t	maxsize
	max size of data More...
void *	data
	optional data pointer More...
struct spa_chunk *	chunk
	valid chunk of memory More...

Detailed Description

Data for a buffer this stays constant for a buffer.

Examples

export-source.c, spa/examples/adapter-control.c, spa/examples/example-control.c, spa/examples/local-libcamera.c, spa/examples/local-v4l2.c, video-src-alloc.c, video-src-fixate.c, and video-src-reneg.c.

Field Documentation

type

uint32_t spa_data::type

memory type, one of enum spa_data_type, when allocating memory, the type contains a bitmask of allowed types.

SPA_ID_INVALID is a special value for the allocator to indicate that the other side did not explicitly specify any supported data types. It should probably use a memory type that does not require special handling in addition to simple mmap/munmap.

Examples

export-sink.c, export-source.c, local-v4l2.c, video-play-fixate.c, video-src-alloc.c, video-src-fixate.c, and video-src-reneg.c.

flags

uint32_t spa_data::flags

data flags

Examples

video-src-alloc.c, video-src-fixate.c, and video-src-reneg.c.

fd

int64_t spa_data::fd

optional fd for data

Examples

export-sink.c, export-source.c, local-v4l2.c, video-src-alloc.c, video-src-fixate.c, and video-src-reneg.c.

mapoffset

uint32_t spa_data::mapoffset

offset to map fd at

Examples

export-sink.c, export-source.c, local-v4l2.c, video-src-alloc.c, video-src-fixate.c, and video-src-reneg.c.

maxsize

uint32_t spa_data::maxsize

max size of data

Examples

audio-src.c, export-sink.c, export-source.c, local-v4l2.c, tutorial4.c, video-src-alloc.c, video-src-fixate.c, and video-src-reneg.c.

data

void* spa_data::data

optional data pointer

Examples

audio-src.c, export-sink.c, export-source.c, local-v4l2.c, spa/examples/local-libcamera.c, spa/examples/local-v4l2.c, tutorial4.c, tutorial5.c, video-dsp-play.c, video-play-fixate.c, video-play-pull.c, video-play-reneg.c, video-play.c, video-src-alloc.c, video-src-fixate.c, video-src-reneg.c, and video-src.c.

chunk

struct spa_chunk* spa_data::chunk

valid chunk of memory

Examples

audio-src.c, export-sink.c, export-source.c, local-v4l2.c, spa/examples/local-libcamera.c, spa/examples/local-v4l2.c, tutorial4.c, tutorial5.c, video-dsp-play.c, video-play-fixate.c, video-play-pull.c, video-play-reneg.c, video-play.c, video-src-alloc.c, video-src-fixate.c, video-src-reneg.c, and video-src.c.

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The documentation for this struct was generated from the following file:

• spa/buffer/buffer.h