Я подозреваю, что Xcode 11 с iOS13 не работает Xcode 10.2.1 с iOS12.2 работает нормально
Я пытаюсь объединить два аудиофайла в один аудиофайл.
Сильфонный код работает нормально Xcode 10.2.1 с iOS 12.2, но теперь работает xcode 11 с iOS13
@objc func applyMergeAudio(){
playmerge(audio1: Bundle.main.url(forResource: "audio0", withExtension: "mp3")!,audio2: Bundle.main.url(forResource: "Asteroid_Sound", withExtension: "mp3")!)
}
func playmerge(audio1: URL, audio2: URL)
{
let composition = AVMutableComposition()
let compositionAudioTrack1:AVMutableCompositionTrack = composition.addMutableTrack(withMediaType: AVMediaType.audio, preferredTrackID: CMPersistentTrackID())!
let compositionAudioTrack2:AVMutableCompositionTrack = composition.addMutableTrack(withMediaType: AVMediaType.audio, preferredTrackID: CMPersistentTrackID())!
let documentDirectoryURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
let fileDestinationUrl = documentDirectoryURL.appendingPathComponent("resultmerge.m4a")
let filemanager = FileManager.default
if (!filemanager.fileExists(atPath: fileDestinationUrl.path))
{
do
{
try filemanager.removeItem(at: fileDestinationUrl)
}
catch let error as NSError
{
NSLog("Error: \(error)")
}
}
let avAsset1 = AVURLAsset(url: audio1, options: nil)
let avAsset2 = AVURLAsset(url: audio2, options: nil)
var tracks1 = avAsset1.tracks(withMediaType: AVMediaType.audio)
var tracks2 = avAsset2.tracks(withMediaType: AVMediaType.audio)
let assetTrack1:AVAssetTrack = tracks1[0]
let assetTrack2:AVAssetTrack = tracks2[0]
let duration1: CMTime = assetTrack1.timeRange.duration
let duration2: CMTime = assetTrack2.timeRange.duration
let timeRange1 = CMTimeRangeMake(start: CMTime.zero, duration: duration1)
let timeRange2 = CMTimeRangeMake(start: CMTime.zero, duration: duration2)
do
{
try compositionAudioTrack1.insertTimeRange(timeRange1, of: assetTrack1, at: CMTime.zero)
try compositionAudioTrack2.insertTimeRange(timeRange2, of: assetTrack2, at: CMTime.zero)
}
catch
{
print(error)
}
//below line force unwarp Version xcode 10.2.1 working fine with iOS12.2. but xcode 11 with iOS13 got crush . .
let assetExport = AVAssetExportSession(asset: composition, presetName: AVAssetExportPresetAppleM4A)
assetExport?.outputFileType = AVFileType.m4a
assetExport?.outputURL = fileDestinationUrl
assetExport?.exportAsynchronously(completionHandler:
{
//xcode 11 with iOS13 not fire this block but xcode 10.2.1 with iOS12.2 working fine.
print(fileDestinationUrl)
})
}
, так что вы бы сказали мне альтернативное решение или я что-то пропустил ?.