CODEWITHSUNDEEP
iphoneobjective-cipad
Tanhan
Tanhan

Reputation: 93

Get the screenshot of a streaming video on iphone

How can i get the screenshot of a streaming video on iphone. I tried several methods.

  1. UIGetScreenImage() -> This is private. The app will be rejected if I use it.

  2. UIGraphicsBeginImageContext(CGSizeMake(1024, 768)); [self.view.layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); 

    The code above cannot take the screenshot of video layer.

  3. MPMoviePlayerController *movie = [[MPMoviePlayerController alloc] initWithContentURL [NSURL URLWithString:@"myMovie.mp4"]]; UIImage *singleFrameImage = [movie thumbnailImageAtTime:10 timeOption:MPMovieTimeOptionExact];

    The code above does not work on a streaming video.

What else can I try besides AVFoundation. Thank you.

Upvotes: 6

Views: 5962

Answers (1)

Alex Chugunov
Alex Chugunov

Reputation: 748

Not sure if it will work, but have you tried using AVPlayer? It should give you access to AVURLAsset which you could pass to AVAssetImageGenerator.

AVPlayerItem *item = [AVPlayerItem playerItemWithURL:yourURL];
AVPlayer *player = [AVPlayer playerWithPlayerItem:pItem];

//observe 'status'
[playerItem addObserver:self forKeyPath:@"status" options:0 context:nil];

- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object
                        change:(NSDictionary *)change context:(void *)context
{ 
    if ([keyPath isEqualToString:@"status"]) {
        AVPlayerItem *item = (AVPlayerItem *)object;
        if (item.status == AVPlayerItemStatusReadyToPlay) {
            AVURLAsset *asset = (AVURLAsset *)item.asset;
            AVAssetImageGenerator *imageGenerator = [[AVAssetImageGenerator alloc] initWithAsset:asset];
            CGImageRef thumb = [imageGenerator copyCGImageAtTime:CMTimeMakeWithSeconds(10.0, 1.0)
                                                      actualTime:NULL
                                                           error:NULL];
        }
    }   
}

Upvotes: 4

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