Contents

AVAssetWriter

An object that writes media data to a container file.

Declaration

class AVAssetWriter

Overview

You use an asset writer to write media to file formats such as the QuickTime movie file format and MPEG-4 file format. An asset writer automatically supports interleaving media data from concurrent tracks for efficient playback and storage. It can reencode media samples it writes to the output file, and may also write collections of metadata to the output file.

Topics

Creating an asset writer

Configuring inputs

Configuring input receivers

Configuring input groups

Configuring output

Configuring fragment output

Managing writing sessions

Inspecting writing status

Configuring segment writing

Accessing output settings

Initializers

See Also

Media writing