PipeWire 1.2.6
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meta.h File Reference

spa/buffer/meta.h More...

Go to the source code of this file.

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)
 

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
}
 

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