f8bcb88467
In Xcode 16 beta 4, this API was marked as back-deployed before iOS 18, but that changed in beta 5. Because calling the older export() API now generates a (possibly spurious) warning about the export session leaving its isolation, introduce a wrapper that's available before iOS 18 and uses the proper isolation.
33 lines
1.1 KiB
Swift
33 lines
1.1 KiB
Swift
//
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// Copyright 2024 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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//
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import AVFoundation
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extension AVAssetExportSession {
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#if compiler(>=6.0)
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/// Workaround for `export(to:as:)` not being back-deployed before iOS 18.
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@available(iOSApplicationExtension, obsoleted: 18.0, message: "Use export(to:as:) instead")
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@inlinable
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public func exportAsync(to url: URL, as fileType: AVFileType, isolation: isolated (any Actor)? = #isolation) async throws {
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if #available(iOSApplicationExtension 18.0, *) {
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try await export(to: url, as: fileType)
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} else {
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outputURL = url
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outputFileType = fileType
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return try await withCheckedThrowingContinuation { continuation in
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nonisolated(unsafe) let session = self
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exportAsynchronously {
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if session.status == .cancelled {
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continuation.resume(throwing: CancellationError())
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} else {
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continuation.resume()
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}
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}
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}
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}
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}
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#endif
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}
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