VideoEditor

A lightweight video editor without UI. See VideoEditorKit for the version with UI

Requirements

• iOS 13
• Combine

Features

• Adjust speed rate
• Crop using presets
• Trim begining and end

How to use

Generate an AVPlayerItem

Create and configure a video edit object.

var edit = VideoEdit()
edit.isMuted = true
edit.speedRate = 0.5
edit.croppingPreset = .landscape
edit.trimPositions = (
    CMTime(value: 2, timescale: 1),
    CMTime(value: 6, timescale: 1)
)

Ask the video editor to apply these videos edits to a specific asset and

editor.apply(edit: videoEdit, to: asset)
    .map { result -> AVPlayerItem? in
        let item = AVPlayerItem(asset: result.asset)
        item.videoComposition = result.videoComposition
        return item
    }
    .replaceError(with: nil)
    .sink { [weak self] item in
        self?.player.replaceCurrentItem(with: item)
    }

Export to URL

editor.apply(edit: videoEdit, to: asset)
    .flatMap { result in
        result.export(to: outputUrl)
    }.sink { result in
        print("Failed to save edited video at \(outputUrl.path). Error: \(result)")
    } receiveValue: { _ in
        print("Successfully saved edited video at \(outputUrl.path)")
    }

Video Editing Capabilities

Property	Type	Default	Description
isMuted	Bool	false	Mutes the edited video if set to true
speedRate	Double	1.0	Defines the speed ratio of the edited video. (e.g. 2.0 will result in an edited video played twice as fast)
trimPositions	(CMTime, CMTime)?	nil	Defines the times where the video should start and end
croppingPreset	CroppingPreset?	nil	Defines the cropping preset to apply to the edit video. See CroppingPreset

Cropping Presets

Preset	Width / Height
vertical	3/4
standard	4/3
portrait	9/16
square	1/1
landscape	16/9
instagram	4/5

To do

• Tests
• Cropping (custom width/height ratio)