Combine, edit, and remix audio and video tracks from multiple sources in a single composition.
Framework
- AVFoundation
Media Composition
Topics
Media Composition
class AVCompositionAn object that combines media data from multiple file-based sources to present or process media data from multiple sources.
class AVCompositionA track in a composition object, consisting of a media type, a track identifier, and track segments.
class AVCompositionA segment of a track, consisting of a URL, a track identifier, and a time mapping from the source track to the composition track.
class AVMutableA mutable object used to create a new composition from existing assets.
class AVMutableA mutable track in a composition object that you use to insert, remove, and scale track segments without affecting their low-level representation.
Video Composition
class AVVideoAn object that represents an immutable video composition.
class AVMutableAn object that represents a mutable video composition.
class AVAsynchronousAn object that supprts using Core Image filters to process an individual video frame in a video composition.
class AVAsynchronousAn object that contains the information necessary for a video compositor to render an output pixel buffer.
class AVMutableAn operation performed by a compositor.
class AVMutableAn object used to modify the transform, cropping, and opacity ramps applied to a given track in a mutable composition.
class AVVideoAn object used to incorporate Core Animation into a video composition.
class AVVideoAn operation performed by a compositor.
class AVVideoAn object used to modify the transform, cropping, and opacity ramps applied to a given track in a composition.
class AVVideoAn object that defines the context within which custom compositors render new output pixel buffers.
Movie Editing
class AVMutableA mutable object that represents the audiovisual containers that conform to a QuickTime- or ISO-based media file format.
class AVMutableA mutable track that conforms to a QuickTime- or ISO-based media file format.
Audio Mixing
class AVAudioAn object that manages the input parameters for mixing audio tracks.
class AVAudioAn object that represents the parameters that you apply when adding an audio track to a mix.
class AVMutableAn object that manages the input parameters for mixing audio tracks.
class AVMutableThe parameters you use when adding an audio track to a mix.