How do I export UIImage array as a movie?

Question

I have a serious problem: I have an NSArray with several UIImage objects. What I now want to do, is create movie from those UIImages.

Answer 1

For those still doing the journey in 2020, and getting distortion in their movies because its not width 16px

change

CGContextRef context = CGBitmapContextCreate(pxdata,
                                             width, height,
                                             8, 4 * width,
                                             rgbColorSpace,
                                             kCGImageAlphaNoneSkipFirst);

to

CGContextRef context = CGBitmapContextCreate(pxdata,
                                             width, height,
                                             8, CVPixelBufferGetBytesPerRow(pxbuffer),
                                             rgbColorSpace,
                                             kCGImageAlphaNoneSkipFirst);

Credit to @bluedays Output from AVAssetWriter (UIImages written to video) distorted