How to get Duration from AVPlayer (Not AVAudioPlayer)?

Question

I would like to make a UISlider(scrubber) for my AVPlayer. But since this is not an AVAudioPlayer, it doesn\'t have a built in duration. Any suggestion on how to create the

Answer 1

In this example avPlayer is the AVPlayer instance.

I have built a video control that uses the following:

to position the slider use something like this to get playhead's percentage through the movie, you will need to fire this function repeatedly. So i would run the function like:

float scrubberBarLocation = (scrubberBgImageView.frame.size.width / 100.0f) * [self moviePercentage];


- (float)moviePercentage {

    CMTime t1 = [avPlayer currentTime];
    CMTime t2 = avPlayer.currentItem.asset.duration;

    float myCurrentTime = CMTimeGetSeconds(t1);
    float myDuration = CMTimeGetSeconds(t2);

    float percent = (myCurrentTime / myDuration)*100.0f;
    return percent;

}

Then to update the video I would do something like:

- (void)updateVideoPercent:(float)thisPercent {

    CMTime t2 = avPlayer.currentItem.asset.duration;
    float myDuration = CMTimeGetSeconds(t2);

    float result = myDuration * thisPercent /100.0f;

    //NSLog(@"this result = %f",result); // debug

    CMTime seekTime = CMTimeMake(result, 1);

    [avPlayer seekToTime:seekTime];

}