Access and inspect media assets; queue media for playback and customize playback behavior; edit and combine assets; import and export raw media streams.
Framework
- AVFoundation
Media Assets, Playback, and Editing
Topics
First Steps
Guidelines for Apple TV 4K Development
Follow these guidelines when developing for Apple TV 4K.
Creating a Basic Video Player (i
Create a simple video playback app with built-in controls.
Creating a Basic Video Player (mac
Create a simple video playback app with built-in controls.
Media Assets
About the Asset Model
Understand how assets are used as the building blocks for media players.
class AVAssetThe abstract class used to model timed audiovisual media such as videos and sounds.
class AVAssetAn object that provides the track-level inspection interface for an asset’s media tracks.
Asset Manipulation
Retrieve assets for playback or to gather information about an asset.
Asset File Import and Export
Import and export media samples to and from the file system.
Media Playback
Responding to Playback State Changes
Respond to changes in a player's playback state.
Observing the Playback Time
Observe the playback time for an asset in order to update the player's state.
Seeking Through Media
Seek or scrub across a media item to quickly access a specific time point.
Asset Playback
Play audio or video assets modeled by a player item.
Quick
Create, play, and modify QuickTime and ISO-related media assets.
Using HEVC Video with Alpha
Play, write, and export HEVC video with an alpha channel to add overlay effects to your video processing.
Metadata Manipulation
Finding Metadata Values
Retrieve and filter all of the metadata associated with an asset.
Java
Understand the JSON chapter formatting required for HTTP Live Streaming.
class AVMetadataA metadata item associated with an audiovisual asset or one of its tracks.
class AVMetadataA collection of metadata items associated with a timeline segment.
class AVMetadataAn object that filters selected information from a metadata item.
class AVMetadataAn object used to respond to a request to load the value of a metadata item.
class AVMutableA mutable metadata item associated with an audiovisual asset or with one of its tracks.
class AVDateA collection of metadata items that are valid for use within a specific date range.
class AVMutableA mutable collection of metadata items that are valid for use within a specific range of dates.
class AVTimedA collection of metadata items that are valid for use during a specific time range.
class AVMutableA mutable collection of metadata items that are valid for use during a specific time range.
struct AVMetadataA value that defines a metadata format.
Media Item Transfer
class AVPlayerThe abstract class that defines the common interface for moving samples from an asset to a player.
protocol AVPlayerMethods you can implement to respond to changes in the media data sequence.
class AVPlayerAn object that can vend media with a legible characteristic as an attributed string.
class AVPlayerAn object used to vend collections of metadata items carried in metadata tracks.
class AVPlayerAn object that coordinates the output of content associated with a Core Video pixel buffer.
class AVPlayerThe abstract base for media data collectors.
HTTP Live Streaming
About the Common Media Application Format with HTTP Live Streaming
Understand the Common Media Application Format as it applies to HTTP Live Streaming
Using AVFoundation to Play and Persist HTTP Live Streams
Play HTTP Live Streams and preserve streams on disk for offline play back.
Sample Buffer Manipulation
class AVSampleAn object that describes a sample buffer creation request.
class AVSampleAn object that provides information about the current media sample at its current position.
class AVSampleAn object used to create sample buffer opaque objects.
protocol AVQueuedMethods you can implement to enqueue sample buffers for presentation.
Media Composition and Editing
Media Composition
Combine, edit, and remix audio and video tracks from multiple sources in a single composition.
Text Formatting
class AVTextAn object that represents text styling rules applied to text in a media item.
Media Selection
Adding Subtitles and Alternative Audio Tracks
Extend your app's appeal to users by adding subtitles and alternative audio tracks in their native language.
class AVMediaAn object that represents a complete rendition of media selection options on an asset.
class AVMediaAn object that represents a collection of mutually exclusive options for the presentation of media within an asset.
class AVMediaAn object that represents a specific option for the presentation of media within a group of options.
class AVMutableA mutable object that represents a complete rendition of media selection options on an asset.
Content Key Decryption
class AVContentAn object that encapsulates information about a content decryption key request issued from a content key session object.
class AVContentAn object that encapsulates information about a response to a content decryption key request.
class AVContentAn object used to create and track decryption keys for media data.
class AVPersistableAn object that encapsulates information about a persistable content decryption key request issued from a content key session.
Errors
struct AVErrorThe error codes for the AVError domain.
Supporting Types
Video Settings Dictionaries
Define output image and video formats by using the key and value constants.
Video Settings
Dictionary keys for configuring video compression and compression settings for video assets.
struct AVFileA uniform type identifier for various file formats.
struct AVMediaAn identifier for various media types.
struct AVMediaThe options for specifying media type characteristics.
See Also
Playback and Editing
Air
With AirPlay 2, you can wirelessly send your content from any Apple device to a device enabled with AirPlay.