Skip to content

Instantly share code, notes, and snippets.

@vparihar01
Created June 26, 2015 14:17
Show Gist options
  • Save vparihar01/2b883aca2fddf46a8215 to your computer and use it in GitHub Desktop.
Save vparihar01/2b883aca2fddf46a8215 to your computer and use it in GitHub Desktop.
Importing video using the AVAssetExportSession session
Hey Isarathg this is classic use case of IOS devices. Which don't let you access any Photo Album assets directly using path value. To cross check my answer please just check FileExistsAtPath for your file like below -:
println(NSFileManager.defaultManager().fileExistsAtPath( urlvalue.path!))
O/P you will get => False
I also end up with this issue couple of days back After reading the whole IOS documentation. What I have figured it out "We can only access PhotoAlbum Assets if and only if we have PHImageManager session open". To cross check this statement please try below code -:
var currentVideofetch: PHFetchResult!
required init(coder aDecoder: NSCoder) {
let options = PHFetchOptions()
options.sortDescriptors = [
NSSortDescriptor(key: "creationDate", ascending: true)
]
currentVideofetch = PHAsset.fetchAssetsWithMediaType(.Video, options: options)
super.init(coder: aDecoder)
}
func checkImageExists(){
let asset = self.currentVideofetch.objectAtIndex(1) as? PHAsset
}
if let checkedAsset = asset {
PHImageManager.defaultManager().requestAVAssetForVideo(checkedAsset, options: nil, resultHandler: {[weak self](result: AVAsset!, audioMix: AVAudioMix!, info: [NSObject : AnyObject]!) in
println(NSFileManager.defaultManager().fileExistsAtPath(self.urlvalue.path!))
})
}
O/P you will get => True
After opening the PHImageManager session and then when i tried accessing the video with the path. It worked fine. Also able to successfully copy all videos files to our local app directory using the relative path of videos in Photo Album.
If you need i can send you my implementation for this. But not sure if it is correct way or not. But working fine for me.
Second and most effective solution i found is using
> AVAssetExportSession
It works like a charm. My implementation is as follows -:
func importVideoToAppDir(videoURL: NSURL, videoFinalPath: NSURL, handler: ((NSURL?) -> Void)?) {
var assetDuration: CMTime!
var asset: AVAsset!
asset = AVAsset.assetWithURL(videoURL) as! AVAsset
assetDuration = asset!.duration
if (DirOperations.DeleteIfExists(videoTempPath) && DirOperations.DeleteIfExists(videoFinalPath)) {
let startTime = kCMTimeZero
let assetDurationSeconds = CMTimeGetSeconds(self.asset!.duration)
var range: CMTimeRange!
if assetDurationSeconds > Float64(maxDuration) {
let stopTime = CMTimeMakeWithSeconds(Float64(maxDuration), 1)
range = CMTimeRangeFromTimeToTime(startTime, stopTime)
} else {
let stopTime = CMTimeMakeWithSeconds(assetDurationSeconds, 1)
range = CMTimeRangeFromTimeToTime(startTime, stopTime)
}
var exporter :AVAssetExportSession = AVAssetExportSession(asset: self.asset, presetName: AVAssetExportPresetHighestQuality)
exporter.outputURL = videoFinalPath
exporter.outputFileType = AVFileTypeQuickTimeMovie
exporter.timeRange = range
exporter.exportAsynchronouslyWithCompletionHandler { () -> Void in
switch exporter.status {
case AVAssetExportSessionStatus.Failed:
println("failed import video: \(exporter.error)")
handler?(nil)
case AVAssetExportSessionStatus.Cancelled:
println("cancelled import video: \(exporter.error)")
handler?(nil)
default:
println("completed import video")
println(videoFinalPath)
handler?(videoFinalPath)
}
}
}
}
func DeleteIfExists(path: NSURL) -> Bool {
var deleted = true
var error: NSError?
if (NSFileManager.defaultManager().fileExistsAtPath(path.path!)) {
deleted = NSFileManager.defaultManager().removeItemAtPath(path.path!, error: &error)
}
return deleted
}
Hope it helps.
@rajeshsonu
Copy link

Hello
I have question i hope you wont mind.
Im getting a captured video AVURLAsset.url path im able to play video with that path what i want is to upload the video to sever by means of data. Im unable to generate data from AVURLAsset.url

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment