Computes the size of the external buffer for the NV12 resize transform.

Syntax

IppStatus ippiResizeYUV420GetBufferSize(const IppiResizeYUV420Spec* pSpec, IppiSize dstSize, Ipp32s* pBufSize);

Include Files

ippi.h

Domain Dependencies

Headers: ippcore.h, ippvm.h, ipps.h

Libraries: ippcore.lib, ippvm.lib, ipps.lib

Parameters

pSpec

Pointer to the spec structure for the resize filter.

dstSize

Size in pixels of the destination image.

pBufSize

Pointer to the size in bytes of the external buffer.

Description

This function computes the size of the external buffer for the NV12 resize transform. The pSpec parameter defines the resize algorithm parameters. Prior to using the ippiResizeYUV420GetBufferSize function, you need to initialize the pSpec parameter by calling one of the following functions: ippiResizeYUV420LanczosInit and ippiResizeYUV420SuperInit.

Return Values

ippStsNoErr

Indicates no error.

ippStsNullPtrErr

Indicates an error if pBufferSize pointer is NULL.

ippStsNoOperation

Indicates a warning if width or height of the destination image is equal to zero.

ippStsContextMatchErr

Indicates an error if pointer to the spec structure is invalid.

ippStsSizeWrn

Indicates a warning in the following cases:
  • if width or height of the image is odd,

  • if the destination image size is more than the destination image origin size.

ippStsSizeErr

Indicates an error in the following cases:
  • if width or height of the image is equal to 1,

  • if width or height of the destination image is negative,

  • if the calculated buffer size exceeds maximum 32 bit signed integer positive value (the processed image size is too large).

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