spa_chunk Struct Reference

Chunk of memory, can change for each buffer. More...

#include <spa/buffer/buffer.h>

Data Fields
uint32_t	offset
	offset of valid data.
uint32_t	size
	size of valid data.
int32_t	stride
	stride of valid data
int32_t	flags
	chunk flags

Detailed Description

Chunk of memory, can change for each buffer.

Examples

local-v4l2.c, spa/examples/adapter-control.c, spa/examples/example-control.c, spa/examples/local-libcamera.c, spa/examples/local-v4l2.c, and spa/examples/local-videotestsrc.c.

Field Documentation

offset

uint32_t spa_chunk::offset

offset of valid data.

Should be taken modulo the data maxsize to get the offset in the data memory.

Examples

audio-src-ring.c, audio-src-ring2.c, audio-src.c, export-source.c, midi-src.c, tutorial4.c, video-dsp-src.c, video-src-alloc.c, video-src-fixate.c, video-src-reneg.c, and video-src.c.

size

uint32_t spa_chunk::size

size of valid data.

Should be clamped to maxsize.

Examples

audio-capture.c, audio-src-ring.c, audio-src-ring2.c, audio-src.c, export-source.c, midi-src.c, tutorial4.c, tutorial5.c, video-dsp-play.c, video-dsp-src.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.

stride

int32_t spa_chunk::stride

stride of valid data

Examples

audio-src-ring.c, audio-src-ring2.c, audio-src.c, export-sink.c, export-source.c, local-v4l2.c, midi-src.c, spa/examples/local-libcamera.c, spa/examples/local-v4l2.c, spa/examples/local-videotestsrc.c, tutorial4.c, video-dsp-play.c, video-dsp-src.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.

flags

int32_t spa_chunk::flags

chunk flags

Examples

midi-src.c.

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

• spa/buffer/buffer.h