Rotating Video with AVMutableVideoCompositionLayerInstruction

Question

I\'m shooting video on an iPhone 4 with the front camera and combining the video with some other media assets. I\'d like for this video to be portrait orientation - the default

Answer 1

Also may be relevant, but there is a bug in the preferredTransform being set when using the front-facing camera .. see here for example, where the guys in the SDAVAssetExportSession project have coded a work-around:

https://github.com/rs/SDAVAssetExportSession/pull/70