I have used AVQueuePlayer several times and the default behaviour is to continue playing when you change view, but in my case when I navigate to the previous view where I came from by segue, the player stops. I put a breakpoint after dealloc to see if the AVQueuePlayer is released and from what I can see it's not deallocated (I have a strong reference to it using property). Please help!!!
I am streaming audio using several links from a server, not playing local files. I created the url, used the url to make AVPlayerItems, and added the player items into array, I used this array to initiate the AVQueuePlayer. I used GCD to make sure my array is completely ready before I play the AVQueuePlayer.
As soon I click on back button it stops. I am pulling out my hair
Create a singleton class that provides an interface to the AVQueuePlayer. That way you will be sure that it's alive even when you pop your view controllers.
Related
I have an issue where when user is playing a video , while video is being player, he uses siri to search for a different movie, which will load its corresponding movie details page and then select to play that movie, which deeplinks to your app which is playing a movie, when i play a new selected movie and dismiss avplayer and avplayercontroller, audio from previous video still continues to play. somehow avplayer is not cleared although i clear all subviews from window and initialize its super view controller class again. I am cluless what can i do erase older instance of avplayer. Let me know if anyone has any suggestions or faced similar issue.
A few suggestions:
Are you subclassing AVPlayerViewController? If so, that's a bad idea. The API docs specifically say not to do that.
Add a deinit function. If it's not being called when the old AVPlayer is dismissed, you know you have a retention problem. This is often caused by registering for notifications or boundary time observers.
If you view controller has a reference to the AVPlayer object, you might try overriding the viewDidDisappear function to call player.pause() and then setting the player reference first to a new instance of AVPlayer() then to nil. Not sure why this helps, but sometimes it does.
Definitely implement #2 above. If deinit is not getting called, you most certainly have an issue.
I am implementing a video app, that lists video and able to stream or watch local videos. If I try to watch videos with my player that inherits from AVPlayer, a lot of threads initated, after 15-20 times, the system does not alloc the AVPlayer well and, even if I do not get any error, the player view is blank and nothing happening...I need to kill app to restore.
How to deal with it?
Thanks in advance
I had the same issue, in my case the AVPlayerLayer didn’t get DE allocated successfully because somehow a custom label grabbed the strong reference of controller and the controller did not get DE allocated.
Implement
deinit {
}
in your controller and check this called or not. If not you have the solution.
I hope this helps.
In my iOS app, I'm using AVFoundation's AVComposition to create a video, with multiple audio tracks. I am trying to let the user see the volume/power-level for each audio-track. I've successfully implemented this for one track, but as soon as I try to use a second MTAudioProcessingTap, it fails with OSError -12780. In fact, if I use a processingTap and then go 'back' - deallocating the entire view controller, and re-opening that particular window, it won't even attach the processingTap again, even if the first AVPlayer playing the composition has been deallocated. To solve this, I found out from searching that I have to manually release it and clearing out the audioMix for the player, but that's not my problem now. Now, I can't clear out the other processingTap, I need them both!
I'm not completely sure what the MTAudioProcessingTap actually is, as it is the single least documented piece of code ever to come out of the Apple dev-team, by far. I've watched the WWDC, and gone through the iPad-sample-project they have made, but I can't figure out how to have two taps running.
I figured I might not actually need two taps, but maybe use one to handle more than one audioTrack, however if I somehow manage to use the same tap for two AudioTracks, I wouldn't know how to tell the taps apart in the static callbacks. Is there perhaps another way to monitor audio-levels from an AVComposition playing in an AVPlayer, or is there a way like this?
I have 2 view controllers, the first one contains a table of video information list, then one item is selected from list, detail view controller opened via navigation. I used AVPlayer at this detail controller. Sometimes AVPlayer fails with AVPlayerItemStatusFailed and after that failure occurred, avplayer continues to failed with AVPlayerItemStatusFailed. Although i tried to clear the avplayer instance and create new one, i cannot achieve AVPlayerItemStatusFailed failure to solve. Also popping detail view controller from navigation and initializing new item via selecting new item from list does not solve the problem.
So I figured that out AVPlayer cloudn't been cleared completely although the owner view controller is removed from the navigation stack. Is there anybody suggest anything to try for clearing the AVPlayer completely and make it works after failure?
Thanks in advance...
What do you mean by clearing the AVPlayer?
Have you tried to recreate the AVPlayerItem? If your AVPlayer continues to fail after recreating the AVPlayerItem, you may need to recreate the AVPlayer as well. There are certain AVFoundation errors that will cause the AVPlayer to become unusable.
I have multiple AVPlayers, each on separate UIViewControllers playing different songs.
I need to pause one AVPlayer whenever I play another one (otherwise the audio overlaps).
I would like to let the user traverse through the app while the music plays in the background, so pausing the AVPlayer on viewDidDisappear:(BOOL)animated, would not work.
What is the best way to access the controls of each separate AVPlayer?
In my opinion a singleton with only 1 AVPlayer solves this issue well. This way you guarantee that to play another song you have to stop the previous. Then, in that AVPLayerSingleton you have a private property called avPlayer. You can define two methods:
- (void)createPlayerWithSong:(NSString *)currentSong;
- (void)destroyPlayer
Then, in your createPlayerWithSong you can check if avPlayer is already created and destroy it and create a new one for each new song.
Couple of ways you could do it:
Create a shared singleton object that have weak properties that reference each AVPlayer. That way you can control it from anywhere.
OR
Use NSNotificationCenter to send notifications when you want to control an AVPlayer on a different view controller. This might get cumbersome if you have a lot of AVPlayers you want to control.