I am trying to play an audio file i saved on parse. I am getting the url from the PFFile from the object i saved to parse. When i run the app the avplayer produces no audio. I tested to see if the avplayer was playing by the first code snippet below and it prints out "Playing" which means the player is playing but no audio. I also tried setting the volume for avplayer and that didn't help. Don't understand why it won't play if anyone would like to help me out.
Audio File URL: http://files.parsetfss.com/292b6f11-5fee-4be7-b317-16fd494dfa3d/tfss-ccc3a843-967b-4773-b92e-1cf2e8f3c1c6-testfile.wav
This Code stops avplayer if it is playing:
if (player.rate > 0) && (player.error == nil) {
// player is playing
println("Playing")
} else {
println("Not Playing")
}
AVPlayer Code:
let objectAudio: PFObject = object as PFObject
let parseAudio: PFFile = objectAudio.valueForKey("audioFileParse") as PFFile
let audioPath: String = parseAudio.url
let urlParse: NSURL = NSURL(fileURLWithPath: audioPath)!
player = AVPlayer(URL: urlParse)
println(player) //prints out <AVPlayer: 0x79e863c0>
player.volume = 1.0
player.play()
You are using the wrong method to get a NSURL here, you try to create a local file URL from an URL that points to a resource on a remote server.
Instead of NSURL(fileURLWithPath: audioPath) you should use the initalizer that accepts an URL string as the input (see here https://developer.apple.com/library/mac/documentation/Cocoa/Reference/Foundation/Classes/NSURL_Class/#//apple_ref/occ/instm/NSURL/initWithString:)
Your current code would point to a local resource which does not exist on the local filesystem whereas it should point to the file on the Parse server.
Just as a reference, the difference between URLWithString and fileURLWithPath What is difference between URLWithString and fileURLWithPath of NSURL?
Related
We have successfully configured Subtitles/Captions in Azure Media Player which plays media on the Web side.
But, how do we configure the same for playing the media managed by AMS in iOS for Native AVPlayer? We know that captions/subtitles can be played in native iOS player with Sidecar WebVTT file, but is the "transcript.vtt" file generated by AMS, the Sidecar WebVTT file ?
If not, how do we generate the sidecar WebVTT file?
We have implemented the code as below with Media file being accessed from AMS link and a locally downloaded transcript.vtt file, but it fails.
[EDITED : 20200413]
However, when we have local media file and local transcript.vtt file, or when we directly access the media file in the media storage account (https://mediastorageaccount.blob.core.windows.net/container/file.mp4) it works fine. But, when we access the encoded file from the link generated by AMS Transform (https://mediaservice-inct.streaming.media.azure.net/788888-6666-4444-aaaa-823422j218/file.ism/manifest(format=m3u8-cmaf)) it fails.
What is wrong here?
func playVideo()
{
let strUrl = "https://mediaservice-inct.streaming.media.azure.net/79510-6eb-340-a90-824218/German-FAST_Lesson-2-Dialog.ism/manifest(format=m3u8-cmaf)"
localVideoAsset = AVURLAsset(url: URL(string: strUrl)!)
//We have to add tracks in AVMutableComposition same like bellow
//First we have to add video track on AVMutableComposition
let videoTrack = videoPlusSubtitles.addMutableTrack(withMediaType: .video, preferredTrackID: kCMPersistentTrackID_Invalid)
do{
guard localVideoAsset!.tracks.count > 0 else{
// error msg
return
}
try? videoTrack?.insertTimeRange(CMTimeRangeMake(start: CMTime.zero, duration: localVideoAsset!.duration),
of:localVideoAsset!.tracks(withMediaType: .video)[0],
at: seconds)
}
//After that we have to add subtitle track in AVMutableComposition
if isEnglishSubtitle {
setSubtitleTrack(subtitle: "transcript")
}else{
setSubtitleTrack(subtitle: "transcript_tr")
}
//After set the video track and subtitle track we have to set in the player same like bellow
player = AVPlayer(playerItem: AVPlayerItem(asset: videoPlusSubtitles))
playerLayer.removeFromSuperlayer()
playerLayer = AVPlayerLayer(player: player)
playerLayer.frame = self.videoView.bounds
playerLayer.videoGravity = .resizeAspect
self.videoView.layer.addSublayer(playerLayer)
player.play()
}
func setSubtitleTrack(subtitle : String){
print(subtitle)
print(seconds)
//Here we have to check if any pre track available. If available then we have to remove it same like bellow
if subtitleTrack != nil{
videoPlusSubtitles.removeTrack(subtitleTrack!)
}
//We have to get subtitle file from path same like bellow
let subtitleAsset = AVURLAsset(url: Bundle.main.url(forResource: subtitle, withExtension: ".vtt")!)
// And we have to add new track from here
subtitleTrack = videoPlusSubtitles.addMutableTrack(withMediaType: .text, preferredTrackID: kCMPersistentTrackID_Invalid)
do{
guard subtitleAsset.tracks.count > 0 else{
//error msg
return
}
try? subtitleTrack?.insertTimeRange(CMTimeRangeMake(start: CMTime.zero, duration: localVideoAsset!.duration),
of:subtitleAsset.tracks(withMediaType: .text)[0],
at: seconds)
}
}
I suspect the issue is not caused by the AMS stream. To double check, you may want to try using another stream HLS(e.g. try a HLS provided by Apple). Apple has specific requirements for playing VTT in AVPlayer. I've included an Apple doc link which has a lot of examples on streaming, and other links that may be helpful:
https://developer.apple.com/streaming/examples/
How to add external .vtt subtitle file to AVPlayerViewController in tvOS
AVUrlAsset and WebVTTs
I'm trying to get my audio file duration to display on my app but my code always return 0. I hope there is a method that notifies me when the AVplayer has data from the file and then I can call my code after that to get the data. Any suggestions?
func loadAudioUrl() {
guard let url = URL(string: sampleShortAudioUrl) else {return}
audioPlayer = AVPlayer(url: url)
audioPlayer?.play()
if let duration = audioPlayer?.currentItem?.duration{
print(duration)
}
}
You can get duration, but you need to wait because content is loading. Your code assumes that it is loaded instantly.
You need to use AVPlayerItem with AVPlayer.
When AVPlayerItem status is ready to play, you can ask for duration. Complete code example is right from Apple here:
AVPlayerItem
You can't get duration from a remote audio url , you must store it's duration remotely in your database and grap it while listening or downloading . . .
I would like to play a video file in my ViewController which is loaded in every page of my PageViewController. As you will be able to see I use a plugin called Carlos to cache the videos (which initially need to be downloaded from a server) so that they do not have to be downloaded every time the user hits a new page. However, I can't figure a way out how to play this downloaded file (NSData). Thus, I would really like to know how I can get the URL of the downloaded file so that I can play it using AVPlayer.
Code (still using URL from server)
let omniCache = videoCache.cache
let request = omniCache.get(URL(string: video!)!)
request
.onSuccess { videoFile in
print("The file..." )
print(videoFile)
//How can I get the local URL here instead of my server url
if let videoURL = URL(string: self.video!){
if self.player == nil {
let playerItemToBePlayed = AVPlayerItem(url: videoURL as URL)
self.player = AVPlayer(playerItem: playerItemToBePlayed)
let playerLayer = AVPlayerLayer(player: self.player)
playerLayer.frame = self.view.frame
self.controlsContainerView.layer.insertSublayer(playerLayer, at: 0)
}
}
}
.onFailure { error in
print("An error occurred :( \(error)")
}
Look at this code of yours:
videoFile in
print("The file..." )
print(videoFile)
if let videoURL = URL(string: self.video!){
So in the first line you print videoFile, which turns out to be the data of the file. But then you ignore it! You never mention videoFile again. Why do you ignore it? That is the data, you already have the data. Now play it!
If the data is a file, get its file URL and play it. If it is in memory — it definitely should not be, because a video held entirely in memory would crash your program — save it, and get that file URL and play it.
[I have to ask, however, why you are interposing this cache plug-in between yourself and such a simple task. Why don't you just download the remote video to disk, yourself?]
I am trying to play a song from a link using the avkit, but nothin is being played. I used an online mp3 file to link converter to generate a link. If anyone has a better method to convert an mp3 file to a link I am all ears. Apart from that the real problem I'm having is why I can't hear anything. I have a feeling it's the link and it is not supported. Keep in mind that playedSong is being called in the viewDidLoad. Link to the song I am trying to play
var urlPath = "http://picosong.com/ANQY"
func playedSong(){
let url: NSURL = NSURL(string: urlPath)!
player = AVPlayer(URL: url)
player.play()
player.rate = 1.0
if(player.rate == 1.0){
print(url)//prints correct url
print("playing")//prints
}else{
print("not playing")
}
}
I am trying to create an AVAudioPlayer that plays NSData downloaded from Parse.
I am pretty certain the sound (.wav format) has been uploaded to Parse. I am also certain that the sound can be downloaded from Parse in the NSData format. So I am creating an AVAudioPlayer object using the downloaded data from Parse:
if audioData != nil {
print("successful downloading audio!") //this prints out
let audioPlayer = try! AVAudioPlayer(data: audioData!, fileTypeHint: AVFileTypeWAVE)
audioPlayer.prepareToPlay()
audioPlayer.volume = 0.5
audioPlayer.play()
}
As you can see above, the audioPlayer is created, but it does not play the sound. Where might be wrong?
Is this code within a function? If so, your making the audioPlayer variable locally. This means that the audioPlayer is created, starts playing and then is deallocated (at the end of the function call), resulting in no audio. Your audioPlayer object needs to be a class property or within global space (such as a singleton for example), so the object life persists after the function ends.