Video rotated after applying AVVideoComposition

Question

After applying an AVVideoComposition to my AVPlayerItem, the filter I apply does work, but the video gets rotated in the AVPlayerLayer.

Answer 1

Try this code below which worked for me

// Grab the source track from AVURLAsset for example.
let assetV = YourAVASSET.tracks(withMediaType: AVMediaTypeVideo).last

// Grab the composition video track from AVMutableComposition you already made.
let compositionV = YourCompostion.tracks(withMediaType: AVMediaTypeVideo).last

// Apply the original transform.
if ((assetV != nil) && (compostionV != nil)) {
    compostionV?.preferredTransform = (assetV?.preferredTransform)!
}

And then go ahead an export your video...