Whats wrong with my code?

gjackson2434 — Fri, 11 Feb 2005 11:57:13 GMT

Please help. I don't understand whats wrong with my code.

I am trying to use ippiYCbCr422ToYCbCr420_8u_C2P3R on an YUY2 image in LPBYTE datatype and store the I420 image in LPBYTE datatype. The manuals are to brief to understand most of the functions in IPP.

int

dstStep[3];

LPBYTE ImageI420[3];

IppiSize RoiSize;

ImageI420[0] = (LPBYTE)

new unsigned char[dwWidth * dwHeight * 3];

ImageI420[1] = (LPBYTE)

new unsigned char[dwWidth * dwHeight * 3];

ImageI420[2] = (LPBYTE)

new unsigned char[dwWidth * dwHeight * 3];

dstStep[0] = dwWidth * dwHeight *

sizeof(ImageI420);

dstStep[1] = dwWidth * dwHeight *

sizeof(ImageI420);

dstStep[2] = dwWidth * dwHeight *

sizeof(ImageI420);

RoiSize.height = dwHeight * 2;

RoiSize.width = dwWidth * 2;

ippiYCbCr422ToYCbCr420_8u_C2P3R(RawImageAddr,dwWidth * dwHeight *

sizeof(char),ImageI420,dstStep,RoiSize);

Re: Whats wrong with my code?

Vladimir_Dudnik — Thu, 17 Feb 2005 06:10:36 GMT

Hi,

there is piece of code from our expert, hope it will help

{
Ipp8u* ImageI420[3];
int stepI420[3];
Ipp8u* ImageYUY2;
int stepYUY2;
IppiSize roiSize = { 1024, 768};

ImageI420[0] = ippiMalloc_8u_C1( roiSize.width, roiSize.height, &(stepI420[0]));

ImageI420[1] = ippiMalloc_8u_C1( roiSize.width, roiSize.height, &(stepI420[1]));

ImageI420[2] = ippiMalloc_8u_C1( roiSize.width, roiSize.height, &(stepI420[2]));

ImageYUY2 = ippiMalloc_8u_C2( roiSize.width, roiSize.height, &stepYUY2 );

ippiYCbCr422ToYCbCr420_8u_C2P3R( ImageYUY2, stepYUY2, ImageI420, stepI420, roiSize);

ippiFree(ImageI420[0]);
ippiFree(ImageI420[1]);
ippiFree(ImageI420[2]);
ippiFree(ImageYUY2);
}

Regards,
Vladimir

topic Re: Whats wrong with my code? in Intel® Integrated Performance Primitives

Whats wrong with my code?

Re: Whats wrong with my code?