AVPlayer does not play video Instantly on iOS 10, while audio playing only

Question

I am creating video with AVAssetExportSession and playing video when it finishes. But Visual Part not showing instantly but only audio is playing instantly. Visual part comes af

Answer 1

I do next:

First

I add watcher

- (void)attachWatcherBlock {
    [self removeWatcherBlock];
    if (self.videoPlayer) {
        __weak typeof(self) wSelf = self;
        self.timeObserver = [self.videoPlayer addPeriodicTimeObserverForInterval:CMTimeMake(1, NSEC_PER_SEC) queue:dispatch_get_main_queue() usingBlock:^(CMTime time) {
            if (wSelf.playerBlock && wSelf.videoPlayer) {
                CGFloat playTime = CMTimeGetSeconds(wSelf.videoPlayer.currentTime);
                CGFloat duration = CMTimeGetSeconds(wSelf.videoPlayer.currentItem.duration);
                if (playTime > 0.0f) {
                    [wSelf replaceCoverToVideo];
                }
                wSelf.playerBlock(wSelf, playTime, duration);
            }
        }];
    }
 [self.videoPlayer play];
}

And then if in block playTime equals duration call replay

- (void)replay {
    __weak typeof(self) wSelf = self;
    dispatch_async(dispatch_get_main_queue(), ^{
        __strong typeof(wSelf) self = wSelf;
        if (self.videoPlayer) {
            [self.videoPlayer seekToTime:kCMTimeZero];
        }
    });
}

All this in my UIView subclass called NDVideoPlayerView