NSInteger cropX0 = 100,
        cropY0 = 100,
        cropHeight = 100,
        cropWidth = 100,
        outWidth = 480,
        outHeight = 480;

CVImageBufferRef imageBuffer = CMSampleBufferGetImageBuffer(sampleBuffer);
CVPixelBufferLockBaseAddress(imageBuffer,0);
void *baseAddress = CVPixelBufferGetBaseAddress(imageBuffer);
size_t bytesPerRow = CVPixelBufferGetBytesPerRow(imageBuffer);

vImage_Buffer inBuff;
inBuff.height = cropHeight;
inBuff.width = cropWidth;
inBuff.rowBytes = bytesPerRow;

int startpos = cropY0*bytesPerRow+4*cropX0;
inBuff.data = baseAddress+startpos;

unsigned char *outImg= (unsigned char*)malloc(4*outWidth*outHeight);
vImage_Buffer outBuff = {outImg, outHeight, outWidth, 4*outWidth};

vImage_Error err = vImageScale_ARGB8888(&inBuff, &outBuff, NULL, 0);
if (err != kvImageNoError) NSLog(@" error %ld", err);

CVPixelBufferRef pixelBuffer;
    CVPixelBufferCreate(kCFAllocatorSystemDefault, 480, 480, kCVPixelFormatType_32BGRA, NULL, &pixelBuffer);

    CVPixelBufferLockBaseAddress( pixelBuffer, 0 );

    vImage_CGImageFormat format = {
        .bitsPerComponent = 8,
        .bitsPerPixel = 32,
        .bitmapInfo = kCGBitmapByteOrder32Little | kCGImageAlphaNoneSkipFirst,  //BGRX8888
        .colorSpace = NULL,    //sRGB
    };

    vImageBuffer_CopyToCVPixelBuffer(&outBuff,
                                     &format,
                                     pixelBuffer,
                                     NULL,
                                     NULL,
                                     kvImageNoFlags); // Here is the crash!


    CVPixelBufferUnlockBaseAddress( pixelBuffer, 0 );