allenhumphreys

CVPixelBufferRef createCroppedPixelBufferBiPlanar(CVPixelBufferRef srcPixelBuffer, CGRect croppingRect, CGSize scaleSize) {

    OSType inputPixelFormat = CVPixelBufferGetPixelFormatType(srcPixelBuffer);
    assert(inputPixelFormat == kCVPixelFormatType_420YpCbCr8BiPlanarFullRange
           || inputPixelFormat == kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange);

    size_t inputWidth = CVPixelBufferGetWidth(srcPixelBuffer);
    size_t inputHeight = CVPixelBufferGetHeight(srcPixelBuffer);

    assert(CGRectGetMinX(croppingRect) >= 0);