ArTrack

External data recording.

Summary

Typedefs
ArTrack	typedef struct ArTrack_ A track recording configuration struct of type data.

Functions
ArTrack_create(const ArSession *session, ArTrack **out_track)	void Initializes an ArTrack.
ArTrack_destroy(ArTrack *track)	void Releases memory used by the provided data track config object.
ArTrack_setId(const ArSession *session, ArTrack *track, const uint8_t *track_id_uuid_16)	void Sets the Track Id.
ArTrack_setMetadata(const ArSession *session, ArTrack *track, const uint8_t *track_metadata_buffer, size_t track_metadata_buffer_size)	void Sets the Track Metadata.
ArTrack_setMimeType(const ArSession *session, ArTrack *track, const char *mime_type)	void Sets the MIME type for the Data Track.

Typedefs

ArTrack

struct ArTrack_ ArTrack

A track recording configuration struct of type data.

(value type).

• Create with: ArTrack_create
• Release with: ArTrack_destroy

Functions

ArTrack_create

void ArTrack_create(
  const ArSession *session,
  ArTrack **out_track
)

Initializes an ArTrack.

Details
Parameters	session The ARCore session out_track Pointer to an ArTrack to receive the address of the newly allocated ArTrack

ArTrack_destroy

void ArTrack_destroy(
  ArTrack *track
)

Releases memory used by the provided data track config object.

Details
Parameters	track The track config object to release

ArTrack_setId

void ArTrack_setId(
  const ArSession *session,
  ArTrack *track,
  const uint8_t *track_id_uuid_16
)

Sets the Track Id.

Details
Parameters	session The ARCore session track The track object to change track_id_uuid_16 The track ID as UUID as a byte array of 16 bytes in size

ArTrack_setMetadata

void ArTrack_setMetadata(
  const ArSession *session,
  ArTrack *track,
  const uint8_t *track_metadata_buffer,
  size_t track_metadata_buffer_size
)

Sets the Track Metadata.

Details
Parameters	session The ARCore session track The external track object to change track_metadata_buffer bytes describing arbitrary data about the track. track_metadata_buffer_size size of the track_metadata_buffer

ArTrack_setMimeType

void ArTrack_setMimeType(
  const ArSession *session,
  ArTrack *track,
  const char *mime_type
)

Sets the MIME type for the Data Track.

Default value is "application/text".

Details
Parameters	session The ARCore session track The track object to change mime_type The string representing the MIME type label as a null-terminated string in UTF-8 format. This will be the MIME type set on the additional stream created for this ArTrack, another convenient means of identification, particularly for applications that do not support UUID as a means of identification.