Data Structures
struct	spa_meta
	A metadata element. More...

struct	spa_meta_header
	Describes essential buffer header metadata such as flags and timestamps. More...

struct	spa_meta_region
	metadata structure for Region or an array of these for RegionArray More...

struct	spa_meta_bitmap
	Bitmap information. More...

struct	spa_meta_cursor
	Cursor information. More...

struct	spa_meta_control
	a timed set of events associated with the buffer More...

struct	spa_meta_busy
	a busy counter for the buffer More...

struct	spa_meta_videotransform
	a transformation of the buffer More...

struct	spa_meta_sync_timeline
	A timeline point for explicit sync. More...

Macros
#define	spa_meta_first spa_meta_first

#define	spa_meta_end spa_meta_end

#define	spa_meta_check(p, m) (SPA_PTROFF(p,sizeof(*(p)),void) <= spa_meta_end(m))

#define	SPA_META_HEADER_FLAG_DISCONT (1 << 0)
	data is not continuous with previous buffer

#define	SPA_META_HEADER_FLAG_CORRUPTED (1 << 1)
	data might be corrupted

#define	SPA_META_HEADER_FLAG_MARKER (1 << 2)
	media specific marker

#define	SPA_META_HEADER_FLAG_HEADER (1 << 3)
	data contains a codec specific header

#define	SPA_META_HEADER_FLAG_GAP (1 << 4)
	data contains media neutral data

#define	SPA_META_HEADER_FLAG_DELTA_UNIT (1 << 5)
	cannot be decoded independently

#define	spa_meta_region_is_valid spa_meta_region_is_valid

#define	spa_meta_for_each(pos, meta)
	iterate all the items in a metadata

#define	spa_meta_bitmap_is_valid(m) ((m)->format != 0)

#define	spa_meta_cursor_is_valid(m) ((m)->id != 0)

Functions
static void *	spa_meta_first (const struct spa_meta *m)

static void *	spa_meta_end (const struct spa_meta *m)

static bool	spa_meta_region_is_valid (const struct spa_meta_region *m)

Detailed Description

Enumerations
enum	spa_meta_type { SPA_META_Invalid , SPA_META_Header , SPA_META_VideoCrop , SPA_META_VideoDamage , SPA_META_Bitmap , SPA_META_Cursor , SPA_META_Control , SPA_META_Busy , SPA_META_VideoTransform , SPA_META_SyncTimeline , _SPA_META_LAST }

enum	spa_meta_videotransform_value { SPA_META_TRANSFORMATION_None = 0 , SPA_META_TRANSFORMATION_90 , SPA_META_TRANSFORMATION_180 , SPA_META_TRANSFORMATION_270 , SPA_META_TRANSFORMATION_Flipped , SPA_META_TRANSFORMATION_Flipped90 , SPA_META_TRANSFORMATION_Flipped180 , SPA_META_TRANSFORMATION_Flipped270 }

Data Structures