Module composition 

Multi-track video composition and audio mixing.

This module provides MultiTrackComposer for compositing multiple video layers onto a solid-colour canvas, and MultiTrackAudioMixer for mixing multiple audio tracks into a single output stream.

Both types produce source-only FilterGraph instances — call FilterGraph::pull_video or FilterGraph::pull_audio in a loop to extract output frames.

Structs

AudioConcatenator

Concatenates multiple audio clips into a single seamless output stream.

AudioTrack

A single audio track in a MultiTrackAudioMixer mix.

ClipJoiner

Joins two video clips with a cross-dissolve transition.

MultiTrackAudioMixer

Mixes multiple audio tracks into a single output stream.

MultiTrackComposer

Composes multiple video layers onto a solid-colour canvas.

VideoConcatenator

Concatenates multiple video clips into a single seamless output stream.

VideoLayer

A single video layer in a MultiTrackComposer composition.