感谢这两篇帖子，我在创建AVPLayerItem期间解决了这个问题AVQueuePlayer playback without gap and freeze AVPlayer "freezes" the app at the start of buffering an audio stream
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
AVURLAsset *asset = [[AVURLAsset alloc] initWithURL:[NSURL URLWithString:urlString] options:@{AVURLAssetPreferPreciseDurationAndTimingKey : @(YES)}];
NSArray *keys = @[@"playable", @"tracks",@"duration" ];
[asset loadValuesAsynchronouslyForKeys:keys completionHandler:^()
{
for (NSString *thisKey in keys) {
NSError *error = nil;
AVKeyValueStatus keyStatus = [asset statusOfValueForKey:thisKey error:&error];
if (keyStatus == AVKeyValueStatusFailed) {
return ;
}
}
AVPlayerItem *item = [[AVPlayerItem alloc] initWithAsset:asset];
dispatch_async(dispatch_get_main_queue(), ^ {
[item addObserver:self forKeyPath:@"status" options:NSKeyValueObservingOptionNew context:nil];
[player insertItem:item afterItem:nil];
});
}];
});
但是，使用来自Soundcloud（https://api.soundcloud.com/tracks/146924238/stream?client_id=76395c48f97de903ff44861e230116bd）的流，在项目状态准备好播放（AVPlayerStatusReadyToPlay）之后，AVQueueplayer继续在主线程"freezing" UI中执行某些操作（跟踪继续在后台线程中播放） .
我注意到这个问题在网络较低时更为重要，然后我得出结论，当项目缓冲流时，这种冻结存在 .
有人有解决方案或诀窍吗？