Ios 合并两个录制的视频会产生相反方向的输出
我正在尝试用以下代码合并两个录制的视频:Ios 合并两个录制的视频会产生相反方向的输出,ios,swift,avfoundation,video-processing,Ios,Swift,Avfoundation,Video Processing,我正在尝试用以下代码合并两个录制的视频: func exportVideo3() { transprentView.hidden = false activityIndicator.startAnimating() let composition = AVMutableComposition() let trackVideo = composition.addMutableTrackWithMediaType(AVMediaTypeVideo, preferre
func exportVideo3() {
transprentView.hidden = false
activityIndicator.startAnimating()
let composition = AVMutableComposition()
let trackVideo = composition.addMutableTrackWithMediaType(AVMediaTypeVideo, preferredTrackID: CMPersistentTrackID())
let trackAudio = composition.addMutableTrackWithMediaType(AVMediaTypeAudio, preferredTrackID: CMPersistentTrackID())
var insertTime = kCMTimeZero
let path = NSFileManager.defaultManager().URLForDirectory(.DocumentDirectory, inDomain: .UserDomainMask, appropriateForURL: nil, create: false, error: nil)!.path!
for index in 1...2 {
let movieUrl = index == 1 ? video1URL : video2URL
let sourceAsset = AVURLAsset(URL: movieUrl, options: nil)
let tracks = sourceAsset.tracksWithMediaType(AVMediaTypeVideo)
let audios = sourceAsset.tracksWithMediaType(AVMediaTypeAudio)
if tracks.count > 0{
let assetTrack:AVAssetTrack = tracks[0] as! AVAssetTrack
trackVideo.insertTimeRange(CMTimeRangeMake(kCMTimeZero,sourceAsset.duration), ofTrack: assetTrack, atTime: insertTime, error: nil)
let assetTrackAudio:AVAssetTrack = audios[0] as! AVAssetTrack
trackAudio.insertTimeRange(CMTimeRangeMake(kCMTimeZero,sourceAsset.duration), ofTrack: assetTrackAudio, atTime: insertTime, error: nil)
insertTime = CMTimeAdd(insertTime, sourceAsset.duration)
}
}
let exporter = AVAssetExportSession(asset: composition, presetName: AVAssetExportPresetHighestQuality)
exporter.outputURL = documentsDirectoryURL.URLByAppendingPathComponent("mergedMovie.mp4")
if NSFileManager.defaultManager().fileExistsAtPath(exporter.outputURL.path!) {
NSFileManager.defaultManager().removeItemAtURL(exporter.outputURL, error: nil)
}
mergedVideoURL = exporter.outputURL
exporter.outputFileType = AVFileTypeMPEG4
exporter.exportAsynchronouslyWithCompletionHandler({
switch exporter.status{
case AVAssetExportSessionStatus.Failed:
println("failed \(exporter.error)")
case AVAssetExportSessionStatus.Cancelled:
println("cancelled \(exporter.error)")
default:
self.transprentView.hidden = true
self.activityIndicator.stopAnimating()
println("complete")
}
})
}
这是工作良好,但新的视频有相反的方向。i、 e当我在纵向录制并合并两个视频时,新视频将以横向模式播放;当我在横向录制并合并两个视频时,新视频将以纵向模式播放
所以,我如何解决这个问题,比如当我以横向模式录制视频时,我希望以横向模式输出,并与纵向模式相同
这是我的示例项目供更多参考。我希望这将帮助您解决我的相同问题。我希望这将帮助您解决我的相同问题。我希望这将帮助您解决我的相同问题。