Replay items in AVQueuePlayer after last
I need to create something like an infinite loop in my AVQueuePlayer . Especially, I want to replay the whole NSArray of AVPlayerItem s once the last component finishes playing.
I must admit that I actually do not have any idea how to achieve this and hope you can give me some clues.
This is it pretty much from scratch. The components are:
(NOTE: The AVPlayerDemoPlaybackView comes from the Apple "AVPlayerDemo" sample. Simply a subclass of UIView with a setter)
BOOL videoShouldLoop = YES;
NSFileManager *fileManager = [NSFileManager defaultManager];
NSMutableArray *videoQueue = [[NSMutableArray alloc] init];
AVQueuePlayer *mPlayer;
AVPlayerDemoPlaybackView *mPlaybackView;
// You'll need to get an array of the files you want to queue as NSARrray *fileList:
for (NSString *videoPath in fileList) {
// Add all files to the queue as AVPlayerItems
if ([fileManager fileExistsAtPath: videoPath]) {
NSURL *videoURL = [NSURL fileURLWithPath: videoPath];
AVPlayerItem *playerItem = [AVPlayerItem playerItemWithURL: videoURL];
// Setup the observer
[[NSNotificationCenter defaultCenter] addObserver: self
selector: @selector(playerItemDidReachEnd:)
name: AVPlayerItemDidPlayToEndTimeNotification
object: playerItem];
// Add the playerItem to the queue
[videoQueue addObject: playerItem];
}
}
// Add the queue array to the AVQueuePlayer
mPlayer = [AVQueuePlayer queuePlayerWithItems: videoQueue];
// Add the player to the view
[mPlaybackView setPlayer: mPlayer];
// If you should only have one video, this allows it to stop at the end instead of blanking the display
if ([[mPlayer items] count] == 1) {
mPlayer.actionAtItemEnd = AVPlayerActionAtItemEndNone;
}
// Start playing
[mPlayer play];
- (void) playerItemDidReachEnd: (NSNotification *)notification
{
// Loop the video
if (videoShouldLoop) {
// Get the current item
AVPlayerItem *playerItem = [mPlayer currentItem];
// Set it back to the beginning
[playerItem seekToTime: kCMTimeZero];
// Tell the player to do nothing when it reaches the end of the video
// -- It will come back to this method when it's done
mPlayer.actionAtItemEnd = AVPlayerActionAtItemEndNone;
// Play it again, Sam
[mPlayer play];
} else {
mPlayer.actionAtItemEnd = AVPlayerActionAtItemEndAdvance;
}
}
That's it! Let me know of something needs further explanation.
best way to loop a sequence of videos in AVQueuePlayer.
observe for each playeritem in AVQueuePlayer.
queuePlayer.actionAtItemEnd = AVPlayerActionAtItemEndNone;
for(AVPlayerItem *item in items) {
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(nextVideo:)
name:AVPlayerItemDidPlayToEndTimeNotification
object:item ];
}
on each nextVideo insert the currentItem again to queue it for playback. make sure to seek to zero for each item. after advanceToNextItem the AVQueuePlayer will remove the currentItem from queue.
-(void) nextVideo:(NSNotification*)notif {
AVPlayerItem *currItem = notif.userInfo[@"object"];
[currItem seekToTime:kCMTimeZero];
[queuePlayer advanceToNextItem];
[queuePlayer insertItem:currItem afterItem:nil];
}
I figured out a solution to loop over all the videos in my video queue, not just one. First I initialized my AVQueuePlayer :
- (void)viewDidLoad
{
NSMutableArray *vidItems = [[NSMutableArray alloc] init];
for (int i = 0; i < 5; i++)
{
// create file name and make path
NSString *fileName = [NSString stringWithFormat:@"intro%i", i];
NSString *path = [[NSBundle mainBundle] pathForResource:fileName ofType:@"mov"];
NSURL *movieUrl = [NSURL fileURLWithPath:path];
// load url as player item
AVPlayerItem *item = [AVPlayerItem playerItemWithURL:movieUrl];
// observe when this item ends
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(playerItemDidReachEnd:)
name:AVPlayerItemDidPlayToEndTimeNotification
object:item];
// add to array
[vidItems addObject:item];
}
// initialize avqueueplayer
_moviePlayer = [AVQueuePlayer queuePlayerWithItems:vidItems];
_moviePlayer.actionAtItemEnd = AVPlayerActionAtItemEndNone;
// create layer for viewing
AVPlayerLayer *layer = [AVPlayerLayer playerLayerWithPlayer:_moviePlayer];
layer.frame = self.view.bounds;
layer.videoGravity = AVLayerVideoGravityResizeAspectFill;
// add layer to uiview container
[_movieViewContainer.layer addSublayer:layer];
}
When the notification is posted
- (void)playerItemDidReachEnd:(NSNotification *)notification {
AVPlayerItem *p = [notification object];
// keep playing the queue
[_moviePlayer advanceToNextItem];
// if this is the last item in the queue, add the videos back in
if (_moviePlayer.items.count == 1)
{
// it'd be more efficient to make this a method being we're using it a second time
for (int i = 0; i < 5; i++)
{
NSString *fileName = [NSString stringWithFormat:@"intro%i", i];
NSString *path = [[NSBundle mainBundle] pathForResource:fileName ofType:@"mov"];
NSURL *movieUrl = [NSURL fileURLWithPath:path];
AVPlayerItem *item = [AVPlayerItem playerItemWithURL:movieUrl];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(playerItemDidReachEnd:)
name:AVPlayerItemDidPlayToEndTimeNotification
object:item];
// the difference from last time, we're adding the new item after the last item in our player to maintain the order
[_moviePlayer insertItem:item afterItem:[[_moviePlayer items] lastObject]];
}
}
}
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