AVAssetExportSession

Declaration

class AVAssetExportSession

Mentioned in

• Exporting video to alternative formats

Overview

You configure this object to export an instance of AVAsset by setting an export preset, an output file type, and an output URL.

Topics

Creating an export session

• init(asset:presetName:)
• Export presets

Accessing export presets

• presetName
• determineCompatibleFileTypes(completionHandler:)
• allExportPresets()
• determineCompatibility(ofExportPreset:with:outputFileType:completionHandler:)

Configuring output

• supportedFileTypes
• allowsParallelizedExport
• shouldOptimizeForNetworkUse
• canPerformMultiplePassesOverSourceMediaData
• timeRange
• fileLengthLimit
• directoryForTemporaryFiles

Configuring metadata

• metadata
• metadataItemFilter

Configuring video output

• videoComposition
• customVideoCompositor

Configuring track groups

• audioTrackGroupHandling
• AVAssetTrackGroupOutputHandling

Configuring audio output

• audioMix
• audioTimePitchAlgorithm

Exporting media

• export(to:as:isolation:)

Monitoring export progress

• states(updateInterval:)
• AVAssetExportSession.State
• AVAssetExportSession.Status

Estimating file length and duration

• estimateOutputFileLength(completionHandler:)

Estimating duration

• estimateMaximumDuration(completionHandler:)

Accessing the asset

• asset

Configuring resumable export

• configureForResumableExport()
• AVAssetExportSession.ResumptionState
• AVAssetExportSession.ResumptionFailureReason

Deprecated

• Deprecated symbols

Relationships

Inherits From

• NSObject

Conforms To

• CVarArg
• CustomDebugStringConvertible
• CustomStringConvertible
• Equatable
• Hashable
• NSObjectProtocol

See Also

Media export

• Exporting video to alternative formats