TM-SGNL-iOS/SignalServiceKit/Util/AVAssetExportSession+Async.swift
TeleMessage developers dde0620daf initial commit
2025-05-03 12:28:28 -07:00

30 lines
1.1 KiB
Swift

//
// Copyright 2024 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
//
public import AVFoundation
extension AVAssetExportSession {
/// Workaround for `export(to:as:)` not being back-deployed before iOS 18.
@available(iOSApplicationExtension, obsoleted: 18.0, message: "Use export(to:as:) instead")
@inlinable
public func exportAsync(to url: URL, as fileType: AVFileType, isolation: isolated (any Actor)? = #isolation) async throws {
if #available(iOSApplicationExtension 18.0, *) {
try await export(to: url, as: fileType)
} else {
outputURL = url
outputFileType = fileType
return try await withCheckedThrowingContinuation { continuation in
nonisolated(unsafe) let session = self
exportAsynchronously {
if session.status == .cancelled {
continuation.resume(throwing: CancellationError())
} else {
continuation.resume()
}
}
}
}
}
}