ios avplayer trigger streaming is out of buffer

Question

I want to reconnect to the server when the streaming buffer is empty.

How can I trigger a method when the AVPlayer or AVPlayerItem buffer i

Answer 1

Try this code it should solve all your nightmares:

#import 

@interface CustomAVPlayerItem : AVPlayerItem
{
    BOOL bufferEmptyVideoWasStopped;
}

-(void)manuallyRegisterEvents;

@end

=========== in the .m file

#import "CustomAVPlayerItem.h"
#import "AppDelegate.h"

@implementation CustomAVPlayerItem

-(void)manuallyRegisterEvents
{
    //NSLog(@"manuallyRegisterEvents %lu", (unsigned long)self.hash);

    [self addObserver:self forKeyPath:@"playbackBufferEmpty" options:NSKeyValueObservingOptionNew context:NULL];
    [self addObserver:self forKeyPath:@"playbackLikelyToKeepUp" options:NSKeyValueObservingOptionNew context:NULL];

    bufferEmptyVideoWasStopped=NO;
}

- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
{
    if (object == self && [keyPath isEqualToString:@"playbackBufferEmpty"])
    {
        if (self.playbackBufferEmpty)
        {
            //NSLog(@"AVPLAYER playbackBufferEmpty");
            bufferEmptyVideoWasStopped=YES;
            [[NSNotificationCenter defaultCenter] postNotificationName:NOTIFICATION_VIDEO_PLAYBACKBUFFER_EMPTY object:self];
        }
    }
    else if (object == self && [keyPath isEqualToString:@"playbackLikelyToKeepUp"])
    {
        if (self.playbackLikelyToKeepUp)
        {
            //NSLog(@"AVPLAYER playbackLikelyToKeepUp");

            if(bufferEmptyVideoWasStopped)
            {
                bufferEmptyVideoWasStopped=NO;

                [[NSNotificationCenter defaultCenter] postNotificationName:NOTIFICATION_VIDEO_PLAYBACKBUFFER_FULL object:self];
            }
            else
                [[NSNotificationCenter defaultCenter] postNotificationName:NOTIFICATION_VIDEO_PLAYBACKBUFFER_KEEP_UP object:self];

        }
    }
}

-(void)dealloc
{
    //NSLog(@"dealloc CustomAVPlayerItem %lu", (unsigned long)self.hash);

    [self removeObserver:self forKeyPath:@"playbackBufferEmpty"];
    [self removeObserver:self forKeyPath:@"playbackLikelyToKeepUp"];
}

@end

===== and now where you want to use it

-(void)startVideoWithSound
{
    if([CustomLog jsonFieldAvailable:[videoObject objectForKey:@"video_url"]])
    {
        CustomAVPlayerItem *playerItem=[[CustomAVPlayerItem alloc] initWithURL:[[OfflineManager new] getCachedURLForVideoURL:[videoObject objectForKey:@"video_url"]]];

        AVPlayer *player=[AVPlayer playerWithPlayerItem:playerItem];
        [playerItem manuallyRegisterEvents];
        [player play];

        player.muted=NO;

        [viewPlayer setPlayer:player];

        viewPlayer.hidden=NO;

        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(notifBufferEmpty:) name:NOTIFICATION_VIDEO_PLAYBACKBUFFER_EMPTY object:nil];
        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(notifBufferFull:) name:NOTIFICATION_VIDEO_PLAYBACKBUFFER_FULL object:nil];
        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(notifBufferKeepUp:) name:NOTIFICATION_VIDEO_PLAYBACKBUFFER_KEEP_UP object:nil];
    }
}

- (void)notifBufferEmpty:(NSNotification *)notification
{
    //NSLog(@"notifBufferEmpty");

    [[viewPlayer player] play]; // resume it
    viewLoading.hidden=NO;
}

- (void)notifBufferFull:(NSNotification *)notification
{
    //NSLog(@"notifBufferFull");
    viewLoading.hidden=YES;
}

- (void)notifBufferKeepUp:(NSNotification *)notification
{
    //NSLog(@"notifBufferKeepUp");
    viewLoading.hidden=YES;
}