I was trying to merge one audio and video. All are completely fine. But the video is exporting to landscape mode. But I want it to portrait mode.
I know this question is already answered in StackOverflow. But those answers are not working for me. Can anyone please help me. I need it swift 3 version.
This is the answer list I have followed but not working for me
Note: Please do not vote it duplicate. I know this question already have but not correct answer for me. please help me. I am stuck here for a long day.
here what I try to implement
let aVideoAsset : AVAsset = AVAsset(url: videoUrl as URL)
let aAudioAsset : AVAsset = AVAsset(url: audioUrl as URL)
let mainComposition = AVMutableComposition()
let videoTrack = mainComposition.addMutableTrack(withMediaType: AVMediaTypeVideo, preferredTrackID: kCMPersistentTrackID_Invalid)
let videoAssetTrack = aVideoAsset.tracks(withMediaType: AVMediaTypeVideo).first!
try? videoTrack.insertTimeRange(CMTimeRangeMake(kCMTimeZero, aVideoAsset.duration), of: videoAssetTrack, at: kCMTimeZero)
let audioTrack = mainComposition.addMutableTrack(withMediaType: AVMediaTypeAudio, preferredTrackID: kCMPersistentTrackID_Invalid)
let audioAssetTrack = aAudioAsset.tracks(withMediaType: AVMediaTypeAudio).first!
try? audioTrack.insertTimeRange(CMTimeRangeMake(kCMTimeZero, aAudioAsset.duration), of: audioAssetTrack, at: kCMTimeZero)
let videoCompositionLayerInstruction = AVMutableVideoCompositionLayerInstruction(assetTrack: videoTrack)
videoCompositionLayerInstruction.setTransform( videoAssetTrack.preferredTransform, at: kCMTimeZero)
let videoCompositionInstuction = AVMutableVideoCompositionInstruction()
videoCompositionInstuction.timeRange = CMTimeRangeMake(kCMTimeZero, mainComposition.duration)
videoCompositionInstuction.layerInstructions = [ videoCompositionLayerInstruction ]
var renderSize = videoAssetTrack.naturalSize
renderSize = renderSize.applying(videoAssetTrack.preferredTransform)
renderSize = CGSize(width: fabs(renderSize.width), height: fabs(renderSize.height))
let videoComposition = AVMutableVideoComposition()
videoComposition.renderSize = renderSize
videoComposition.renderSize = CGSize( width: 1280, height: 720)
videoComposition.frameDuration = CMTimeMake(1, 30)
videoComposition.instructions = [ videoCompositionInstuction ]
let savePathUrl : NSURL = NSURL(fileURLWithPath: NSHomeDirectory() + "/Documents/newVideo.mp4")
let assetExport = AVAssetExportSession(asset: mainComposition, presetName: AVAssetExportPresetHighestQuality)
assetExport?.outputURL = savePathUrl as URL
assetExport?.outputFileType = AVFileTypeQuickTimeMovie
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.writeVideoAtPath(toSavedPhotosAlbum: savePathUrl as URL!, completionBlock: nil)
print("success")
case AVAssetExportSessionStatus.failed?:
print("failed \(String(describing: assetExport?.error))")
case AVAssetExportSessionStatus.cancelled?:
print("cancelled \(String(describing: assetExport?.error))")
default:
print("complete")
}
}
