How to detect if a video file was recorded in portrait orientation, or landscape in iOS

by

Based on the previous answer, you can use the following to determine the video orientation:

+ (UIInterfaceOrientation)orientationForTrack:(AVAsset *)asset
{
    AVAssetTrack *videoTrack = [[asset tracksWithMediaType:AVMediaTypeVideo] objectAtIndex:0];
    CGSize size = [videoTrack naturalSize];
    CGAffineTransform txf = [videoTrack preferredTransform];

    if (size.width == txf.tx && size.height == txf.ty)
        return UIInterfaceOrientationLandscapeRight;
    else if (txf.tx == 0 && txf.ty == 0)
        return UIInterfaceOrientationLandscapeLeft;
    else if (txf.tx == 0 && txf.ty == size.width)
        return UIInterfaceOrientationPortraitUpsideDown;
    else
        return UIInterfaceOrientationPortrait;
}

More Related Contents:

  1. Constants in Objective-C
  2. Cropping an UIImage
  3. Difference between ‘YYYY’ and ‘yyyy’ in NSDateFormatter
  4. Programmatically retrieve memory usage on iPhone
  5. Undefined symbols for architecture i386: _OBJC_CLASS_$_SKPSMTPMessage”, referenced from: error
  6. iOS: Convert UTC NSDate to local Timezone
  7. Setting up buttons in SKScene
  8. How to play a local video with Swift?
  9. How do I set bold and italic on UILabel of iPhone/iPad?
  10. Sorting NSArray of dictionaries by value of a key in the dictionaries
  11. iOS 8 SDK: modal UIWebView and camera/image picker
  12. Dynamic cell width of UICollectionView depending on label width
  13. Detect Language of NSString
  14. Objective-C Declare vars with ({ … })
  15. Custom UITableViewCell selection style?
  16. Get UTC time and local time from NSDate object
  17. app rejected because of advertisingIdentifier in Facebook SDK and Flurry SDK
  18. Instantiate View Controller from Storyboard vs. Creating New Instance
  19. iPhone app under test crashes after a few days
  20. How Do I detect the orientation of the device on iOS?
  21. Confused about Orthographic Projection of camera in SceneKit
  22. Error: CUICatalog: Invalid asset name supplied: (null), or invalid scale factor : 2.000000
  23. Duplicate Symbols for Architecture arm64
  24. UISlider that snaps to a fixed number of steps (like Text Size in the iOS 7 Settings app)
  25. Open UISplitViewController to Master View rather than Detail
  26. How to prevent status bar from overlapping content with hidesBarsOnSwipe set on UINavigationController?
  27. UIRefreshControl with UICollectionView in iOS7
  28. Round top corners of a UIView and add border
  29. How can I get the iOS device CPU architecture in runtime
  30. MKMapView MKPointAnnotation tap event

Leave a Comment