uint8_t* baseAddress = CVPixelBufferGetBaseAddress(imageBuffer);
void* free_me = 0;
if (true) { // iOS bug?
uint8_t* tmp = baseAddress;
int bytes = bytesPerRow*height;
free_me = baseAddress = (uint8_t*)malloc(bytes);
baseAddress[0] = 0xdb;
memcpy(baseAddress,tmp,bytes);
}
free(free_me);