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Swift Объединить аудио и видео файлы в одно видео

Я написал программу в Swift. Я хочу объединить видео с аудиофайлом, но получил эту ошибку.

"не удалось Ошибка домена = AVFoundationErrorDomain Code = -11838" Операция остановлена ​​ "UserInfo = 0x17da4230 {NSLocalizedDescription = Операция остановлена, NSLocalizedFailureReason = Операция не поддерживается для этого носителя.}"

код

func mergeAudio(audioURL: NSURL, moviePathUrl: NSURL, savePathUrl: NSURL) {
    var composition = AVMutableComposition()
    let trackVideo:AVMutableCompositionTrack = composition.addMutableTrackWithMediaType(AVMediaTypeVideo, preferredTrackID: CMPersistentTrackID())
    let trackAudio:AVMutableCompositionTrack = composition.addMutableTrackWithMediaType(AVMediaTypeAudio, preferredTrackID: CMPersistentTrackID())
    let option = NSDictionary(object: true, forKey: "AVURLAssetPreferPreciseDurationAndTimingKey")
    let sourceAsset = AVURLAsset(URL: moviePathUrl, options: option as [NSObject : AnyObject])
    let audioAsset = AVURLAsset(URL: audioURL, options: option as [NSObject : AnyObject])

    let tracks = sourceAsset.tracksWithMediaType(AVMediaTypeVideo)
    let audios = audioAsset.tracksWithMediaType(AVMediaTypeAudio)

    if tracks.count > 0 {
        let assetTrack:AVAssetTrack = tracks[0] as! AVAssetTrack
        let assetTrackAudio:AVAssetTrack = audios[0] as! AVAssetTrack

        let audioDuration:CMTime = assetTrackAudio.timeRange.duration
        let audioSeconds:Float64 = CMTimeGetSeconds(assetTrackAudio.timeRange.duration)

        trackVideo.insertTimeRange(CMTimeRangeMake(kCMTimeZero,audioDuration), ofTrack: assetTrack, atTime: kCMTimeZero, error: nil)
        trackAudio.insertTimeRange(CMTimeRangeMake(kCMTimeZero,audioDuration), ofTrack: assetTrackAudio, atTime: kCMTimeZero, error: nil)
    }

    var assetExport: AVAssetExportSession = AVAssetExportSession(asset: composition, presetName: AVAssetExportPresetPassthrough)
    assetExport.outputFileType = AVFileTypeMPEG4
    assetExport.outputURL = savePathUrl
    self.tmpMovieURL = savePathUrl
    assetExport.shouldOptimizeForNetworkUse = true
    assetExport.exportAsynchronouslyWithCompletionHandler { () -> Void in
        switch assetExport.status {
        case AVAssetExportSessionStatus.Completed:
            let assetsLib = ALAssetsLibrary()
            assetsLib.writeVideoAtPathToSavedPhotosAlbum(savePathUrl, completionBlock: nil)
            println("success")
        case  AVAssetExportSessionStatus.Failed:
            println("failed \(assetExport.error)")
        case AVAssetExportSessionStatus.Cancelled:
            println("cancelled \(assetExport.error)")
        default:
            println("complete")
        }
    }

}

В моей идее тип мультимедиа, такой как mpeg4, неверен. В чем проблема? Что мне не хватает?

4b9b3361

ОТВЕТЫ

Ответ 1

  

В предыдущем вопросе такая же ошибка, которую я обнаружил из-за неправильного сохраненияPathUrl, целевой URL должен быть как ниже кода, включая новое видео.

  

Я искал код Объединить аудио и видео файлы в одно видео, но не смог найти нигде, поэтому, проведя часы, читая документы Apple, я написал этот код.

ПРИМЕЧАНИЕ. Это проверено и 100% рабочий код для меня.

Stap: 1 Импортируйте эти модули в свой viewController.

import UIKit
import AVFoundation
import AVKit
import AssetsLibrary

шаг 2: Добавьте эту функцию в свой код

func mergeFilesWithUrl(videoUrl:NSURL, audioUrl:NSURL)
{
    let mixComposition : AVMutableComposition = AVMutableComposition()
    var mutableCompositionVideoTrack : [AVMutableCompositionTrack] = []
    var mutableCompositionAudioTrack : [AVMutableCompositionTrack] = []
    let totalVideoCompositionInstruction : AVMutableVideoCompositionInstruction = AVMutableVideoCompositionInstruction()


    //start merge

    let aVideoAsset : AVAsset = AVAsset(URL: videoUrl)
    let aAudioAsset : AVAsset = AVAsset(URL: audioUrl)

    mutableCompositionVideoTrack.append(mixComposition.addMutableTrackWithMediaType(AVMediaTypeVideo, preferredTrackID: kCMPersistentTrackID_Invalid))
    mutableCompositionAudioTrack.append( mixComposition.addMutableTrackWithMediaType(AVMediaTypeAudio, preferredTrackID: kCMPersistentTrackID_Invalid))

    let aVideoAssetTrack : AVAssetTrack = aVideoAsset.tracksWithMediaType(AVMediaTypeVideo)[0]
    let aAudioAssetTrack : AVAssetTrack = aAudioAsset.tracksWithMediaType(AVMediaTypeAudio)[0]



    do{
        try mutableCompositionVideoTrack[0].insertTimeRange(CMTimeRangeMake(kCMTimeZero, aVideoAssetTrack.timeRange.duration), ofTrack: aVideoAssetTrack, atTime: kCMTimeZero)

        //In my case my audio file is longer then video file so i took videoAsset duration
        //instead of audioAsset duration

        try mutableCompositionAudioTrack[0].insertTimeRange(CMTimeRangeMake(kCMTimeZero, aVideoAssetTrack.timeRange.duration), ofTrack: aAudioAssetTrack, atTime: kCMTimeZero)

        //Use this instead above line if your audiofile and video file playing durations are same

        //            try mutableCompositionAudioTrack[0].insertTimeRange(CMTimeRangeMake(kCMTimeZero, aVideoAssetTrack.timeRange.duration), ofTrack: aAudioAssetTrack, atTime: kCMTimeZero)

    }catch{

    }

    totalVideoCompositionInstruction.timeRange = CMTimeRangeMake(kCMTimeZero,aVideoAssetTrack.timeRange.duration )

    let mutableVideoComposition : AVMutableVideoComposition = AVMutableVideoComposition()
    mutableVideoComposition.frameDuration = CMTimeMake(1, 30)

    mutableVideoComposition.renderSize = CGSizeMake(1280,720)

    //        playerItem = AVPlayerItem(asset: mixComposition)
    //        player = AVPlayer(playerItem: playerItem!)
    //
    //
    //        AVPlayerVC.player = player



    //find your video on this URl
    let savePathUrl : NSURL = NSURL(fileURLWithPath: NSHomeDirectory() + "/Documents/newVideo.mp4")

    let assetExport: AVAssetExportSession = AVAssetExportSession(asset: mixComposition, presetName: AVAssetExportPresetHighestQuality)!
    assetExport.outputFileType = AVFileTypeMPEG4
    assetExport.outputURL = savePathUrl
    assetExport.shouldOptimizeForNetworkUse = true

    assetExport.exportAsynchronouslyWithCompletionHandler { () -> Void in
        switch assetExport.status {

        case AVAssetExportSessionStatus.Completed:

            //Uncomment this if u want to store your video in asset

            //let assetsLib = ALAssetsLibrary()
            //assetsLib.writeVideoAtPathToSavedPhotosAlbum(savePathUrl, completionBlock: nil)

            print("success")
        case  AVAssetExportSessionStatus.Failed:
            print("failed \(assetExport.error)")
        case AVAssetExportSessionStatus.Cancelled:
            print("cancelled \(assetExport.error)")
        default:
            print("complete")
        }
    }


}

Шаг 3: Вызовите функцию, где u хотите как это

let videoUrl : NSURL =  NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("SampleVideo", ofType: "mp4")!)
let audioUrl : NSURL = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("SampleAudio", ofType: "mp3")!)

mergeFilesWithUrl(videoUrl, audioUrl: audioUrl)

надеюсь, что это поможет вам и сэкономит ваше время.

Ответ 2

Улучшенный код (из ответа Говинда) с некоторыми дополнительными функциями:

  1. Слияние аудио видео + внешнее аудио (первоначальный ответ отбрасывал звук видео)
  2. Переверните видео по горизонтали, если это необходимо (я лично использую его, когда пользователь снимает с помощью фронтальной камеры, кстати, Instagram также переворачивает его)
  3. Правильно применяет preferredTransform преобразование, которое решает проблему, когда видео было сохранено повернуто (видео является внешним: снято на другом устройстве/сгенерировано другим приложением)
  4. Удален неиспользуемый код с VideoComposition.
  5. Добавлен обработчик завершения в метод, чтобы его можно было вызывать из другого класса.
  6. Обновление до Swift 4.

Шаг 1.

import UIKit
import AVFoundation
import AVKit
import AssetsLibrary

Шаг 2.

/// Merges video and sound while keeping sound of the video too
///
/// - Parameters:
///   - videoUrl: URL to video file
///   - audioUrl: URL to audio file
///   - shouldFlipHorizontally: pass True if video was recorded using frontal camera otherwise pass False
///   - completion: completion of saving: error or url with final video
func mergeVideoAndAudio(videoUrl: URL,
                        audioUrl: URL,
                        shouldFlipHorizontally: Bool = false,
                        completion: @escaping (_ error: Error?, _ url: URL?) -> Void) {

    let mixComposition = AVMutableComposition()
    var mutableCompositionVideoTrack = [AVMutableCompositionTrack]()
    var mutableCompositionAudioTrack = [AVMutableCompositionTrack]()
    var mutableCompositionAudioOfVideoTrack = [AVMutableCompositionTrack]()

    //start merge

    let aVideoAsset = AVAsset(url: videoUrl)
    let aAudioAsset = AVAsset(url: audioUrl)

    let compositionAddVideo = mixComposition.addMutableTrack(withMediaType: AVMediaTypeVideo,
                                                                   preferredTrackID: kCMPersistentTrackID_Invalid)

    let compositionAddAudio = mixComposition.addMutableTrack(withMediaType: AVMediaTypeAudio,
                                                                 preferredTrackID: kCMPersistentTrackID_Invalid)

    let compositionAddAudioOfVideo = mixComposition.addMutableTrack(withMediaType: AVMediaTypeAudio,
                                                                        preferredTrackID: kCMPersistentTrackID_Invalid)

    let aVideoAssetTrack: AVAssetTrack = aVideoAsset.tracks(withMediaType: AVMediaTypeVideo)[0]
    let aAudioOfVideoAssetTrack: AVAssetTrack? = aVideoAsset.tracks(withMediaType: AVMediaTypeAudio).first
    let aAudioAssetTrack: AVAssetTrack = aAudioAsset.tracks(withMediaType: AVMediaTypeAudio)[0]

    // Default must have tranformation
    compositionAddVideo.preferredTransform = aVideoAssetTrack.preferredTransform

    if shouldFlipHorizontally {
        // Flip video horizontally
        var frontalTransform: CGAffineTransform = CGAffineTransform(scaleX: -1.0, y: 1.0)
        frontalTransform = frontalTransform.translatedBy(x: -aVideoAssetTrack.naturalSize.width, y: 0.0)
        frontalTransform = frontalTransform.translatedBy(x: 0.0, y: -aVideoAssetTrack.naturalSize.width)
        compositionAddVideo.preferredTransform = frontalTransform
    }

    mutableCompositionVideoTrack.append(compositionAddVideo)
    mutableCompositionAudioTrack.append(compositionAddAudio)
    mutableCompositionAudioOfVideoTrack.append(compositionAddAudioOfVideo)

    do {
        try mutableCompositionVideoTrack[0].insertTimeRange(CMTimeRangeMake(kCMTimeZero,
                                                                            aVideoAssetTrack.timeRange.duration),
                                                            of: aVideoAssetTrack,
                                                            at: kCMTimeZero)

        //In my case my audio file is longer then video file so i took videoAsset duration
        //instead of audioAsset duration
        try mutableCompositionAudioTrack[0].insertTimeRange(CMTimeRangeMake(kCMTimeZero,
                                                                            aVideoAssetTrack.timeRange.duration),
                                                            of: aAudioAssetTrack,
                                                            at: kCMTimeZero)

        // adding audio (of the video if exists) asset to the final composition
        if let aAudioOfVideoAssetTrack = aAudioOfVideoAssetTrack {
            try mutableCompositionAudioOfVideoTrack[0].insertTimeRange(CMTimeRangeMake(kCMTimeZero,
                                                                                       aVideoAssetTrack.timeRange.duration),
                                                                       of: aAudioOfVideoAssetTrack,
                                                                       at: kCMTimeZero)
        }
    } catch {
        print(error.localizedDescription)
    }

    // Exporting
    let savePathUrl: URL = URL(fileURLWithPath: NSHomeDirectory() + "/Documents/newVideo.mp4")
    do { // delete old video
        try FileManager.default.removeItem(at: savePathUrl)
    } catch { print(error.localizedDescription) }

    let assetExport: AVAssetExportSession = AVAssetExportSession(asset: mixComposition, presetName: AVAssetExportPresetHighestQuality)!
    assetExport.outputFileType = AVFileTypeMPEG4
    assetExport.outputURL = savePathUrl
    assetExport.shouldOptimizeForNetworkUse = true

    assetExport.exportAsynchronously { () -> Void in
        switch assetExport.status {
        case AVAssetExportSessionStatus.completed:
            print("success")
            completion(nil, savePathUrl)
        case AVAssetExportSessionStatus.failed:
            print("failed \(assetExport.error?.localizedDescription ?? "error nil")")
            completion(assetExport.error, nil)
        case AVAssetExportSessionStatus.cancelled:
            print("cancelled \(assetExport.error?.localizedDescription ?? "error nil")")
            completion(assetExport.error, nil)
        default:
            print("complete")
            completion(assetExport.error, nil)
        }
    }

}

Снова благодаря ответу @Govind! Это мне очень помогло!

Надеюсь, что это обновление кому-то тоже поможет :)

Ответ 3

Версия Swift3 с URL и новым синтаксисом.

func mergeFilesWithUrl(videoUrl:URL, audioUrl:URL)
{
    let mixComposition : AVMutableComposition = AVMutableComposition()
    var mutableCompositionVideoTrack : [AVMutableCompositionTrack] = []
    var mutableCompositionAudioTrack : [AVMutableCompositionTrack] = []
    let totalVideoCompositionInstruction : AVMutableVideoCompositionInstruction = AVMutableVideoCompositionInstruction()


    //start merge

    let aVideoAsset : AVAsset = AVAsset(url: videoUrl)
    let aAudioAsset : AVAsset = AVAsset(url: audioUrl)

    mutableCompositionVideoTrack.append(mixComposition.addMutableTrack(withMediaType: AVMediaTypeVideo, preferredTrackID: kCMPersistentTrackID_Invalid))
    mutableCompositionAudioTrack.append( mixComposition.addMutableTrack(withMediaType: AVMediaTypeAudio, preferredTrackID: kCMPersistentTrackID_Invalid))

    let aVideoAssetTrack : AVAssetTrack = aVideoAsset.tracks(withMediaType: AVMediaTypeVideo)[0]
    let aAudioAssetTrack : AVAssetTrack = aAudioAsset.tracks(withMediaType: AVMediaTypeAudio)[0]



    do{
        try mutableCompositionVideoTrack[0].insertTimeRange(CMTimeRangeMake(kCMTimeZero, aVideoAssetTrack.timeRange.duration), of: aVideoAssetTrack, at: kCMTimeZero)

        //In my case my audio file is longer then video file so i took videoAsset duration
        //instead of audioAsset duration

        try mutableCompositionAudioTrack[0].insertTimeRange(CMTimeRangeMake(kCMTimeZero, aVideoAssetTrack.timeRange.duration), of: aAudioAssetTrack, at: kCMTimeZero)

        //Use this instead above line if your audiofile and video file playing durations are same

        //            try mutableCompositionAudioTrack[0].insertTimeRange(CMTimeRangeMake(kCMTimeZero, aVideoAssetTrack.timeRange.duration), ofTrack: aAudioAssetTrack, atTime: kCMTimeZero)

    }catch{

    }

    totalVideoCompositionInstruction.timeRange = CMTimeRangeMake(kCMTimeZero,aVideoAssetTrack.timeRange.duration )

    let mutableVideoComposition : AVMutableVideoComposition = AVMutableVideoComposition()
    mutableVideoComposition.frameDuration = CMTimeMake(1, 30)

    mutableVideoComposition.renderSize = CGSize(width: 1280, height: 720)
    //        playerItem = AVPlayerItem(asset: mixComposition)
    //        player = AVPlayer(playerItem: playerItem!)
    //
    //
    //        AVPlayerVC.player = player

    //find your video on this URl
    let savePathUrl : URL = URL(fileURLWithPath: NSHomeDirectory() + "/Documents/newVideo.mp4")

    let assetExport: AVAssetExportSession = AVAssetExportSession(asset: mixComposition, presetName: AVAssetExportPresetHighestQuality)!
    assetExport.outputFileType = AVFileTypeMPEG4
    assetExport.outputURL = savePathUrl
    assetExport.shouldOptimizeForNetworkUse = true

    assetExport.exportAsynchronously { () -> Void in
        switch assetExport.status {

        case AVAssetExportSessionStatus.completed:

            //Uncomment this if u want to store your video in asset

            //let assetsLib = ALAssetsLibrary()
            //assetsLib.writeVideoAtPathToSavedPhotosAlbum(savePathUrl, completionBlock: nil)

            print("success")
        case  AVAssetExportSessionStatus.failed:
            print("failed \(assetExport.error)")
        case AVAssetExportSessionStatus.cancelled:
            print("cancelled \(assetExport.error)")
        default:
            print("complete")
        }
    }
}

Ответ 4

Свифт 4.2/5

func mergeVideoWithAudio(videoUrl: URL, audioUrl: URL, success: @escaping ((URL) -> Void), failure: @escaping ((Error?) -> Void)) {


    let mixComposition: AVMutableComposition = AVMutableComposition()
    var mutableCompositionVideoTrack: [AVMutableCompositionTrack] = []
    var mutableCompositionAudioTrack: [AVMutableCompositionTrack] = []
    let totalVideoCompositionInstruction : AVMutableVideoCompositionInstruction = AVMutableVideoCompositionInstruction()

    let aVideoAsset: AVAsset = AVAsset(url: videoUrl)
    let aAudioAsset: AVAsset = AVAsset(url: audioUrl)

    if let videoTrack = mixComposition.addMutableTrack(withMediaType: .video, preferredTrackID: kCMPersistentTrackID_Invalid), let audioTrack = mixComposition.addMutableTrack(withMediaType: .audio, preferredTrackID: kCMPersistentTrackID_Invalid) {
        mutableCompositionVideoTrack.append(videoTrack)
        mutableCompositionAudioTrack.append(audioTrack)

    if let aVideoAssetTrack: AVAssetTrack = aVideoAsset.tracks(withMediaType: .video).first, let aAudioAssetTrack: AVAssetTrack = aAudioAsset.tracks(withMediaType: .audio).first {
        do {
            try mutableCompositionVideoTrack.first?.insertTimeRange(CMTimeRangeMake(start: CMTime.zero, duration: aVideoAssetTrack.timeRange.duration), of: aVideoAssetTrack, at: CMTime.zero)
            try mutableCompositionAudioTrack.first?.insertTimeRange(CMTimeRangeMake(start: CMTime.zero, duration: aVideoAssetTrack.timeRange.duration), of: aAudioAssetTrack, at: CMTime.zero)
               videoTrack.preferredTransform = aVideoAssetTrack.preferredTransform 

        } catch{
            print(error)
        }


       totalVideoCompositionInstruction.timeRange = CMTimeRangeMake(start: CMTime.zero,duration: aVideoAssetTrack.timeRange.duration)
    }
    }

    let mutableVideoComposition: AVMutableVideoComposition = AVMutableVideoComposition()
    mutableVideoComposition.frameDuration = CMTimeMake(value: 1, timescale: 30)
    mutableVideoComposition.renderSize = CGSize(width: 480, height: 640)

    if let documentsPath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).first {
        let outputURL = URL(fileURLWithPath: documentsPath).appendingPathComponent("\("fileName").m4v")

        do {
            if FileManager.default.fileExists(atPath: outputURL.path) {

                try FileManager.default.removeItem(at: outputURL)
            }
        } catch { }

        if let exportSession = AVAssetExportSession(asset: mixComposition, presetName: AVAssetExportPresetHighestQuality) {
            exportSession.outputURL = outputURL
            exportSession.outputFileType = AVFileType.mp4
            exportSession.shouldOptimizeForNetworkUse = true

            /// try to export the file and handle the status cases
            exportSession.exportAsynchronously(completionHandler: {
                switch exportSession.status {
                case .failed:
                    if let _error = exportSession.error {
                        failure(_error)
                    }

                case .cancelled:
                    if let _error = exportSession.error {
                        failure(_error)
                    }

                default:
                    print("finished")
                    success(outputURL)
                }
            })
        } else {
            failure(nil)
        }
    }
}