An abstract class that defines an interface for reading a single collection of samples of a common media type from an asset reader object.
SDKs
Framework
There are several subclasses of AVAsset for specific tasks, such as AVAsset or AVAsset.
You can read the media data of an asset by adding one or more concrete instances of AVAsset to an AVAsset object using add(_:).
func copyCopies the next sample buffer for the output synchronously.
var alwaysA Boolean value that indicates whether the data in buffers gets copied before being vended.
var mediaA string representing the media type of the track (or tracks) represented by the output.
func markInforms the receiver that no more reconfiguration of time ranges is necessary and allows the attached AVAsset to advance to AVAssetReaderStatusCompleted.
func reset(forRestarts reading with a new set of time ranges.
var supportsA Boolean value that indicates whether the asset reader output supports reconfiguration of the time ranges to read.
class AVAssetA reader object used to obtain the media data of an asset, either file-based or consisting of an assemblage of media data from multiple sources.
class AVAssetAn object that defines an interface for reading audio samples that result from mixing the audio from one or more tracks of an asset.
class AVAssetAn object that defines an interface for reading media data from a single track of an asset reader's asset.
class AVAssetAn object that defines an interface for reading sample references from a single asset track.
class AVAssetAn object that reads video frames that have been composited from the frames in one or more tracks of a reader's assets.
class AVAssetAn object that defines an interface for reading metadata.
class AVAssetAn object that provides thumbnail or preview images of assets independently of playback.