man pages section 3: Multimedia Library Functions

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Updated: July 2014
 
 

mlib_VideoInterpY_U8_U8_16x16(3MLIB)

Name

mlib_VideoInterpY_U8_U8_16x16, mlib_VideoInterpY_U8_U8_16x8, mlib_VideoInterpY_U8_U8_8x16, mlib_VideoInterpY_U8_U8_8x8, mlib_VideoInterpY_U8_U8_8x4 - half-pixel interpolation in the Y direction

Synopsis

cc [ flag... ] file... –lmlib [ library... ]
#include <mlib.h>

mlib_status mlib_VideoInterpY_U8_U8_16x16(mlib_u8 *curr_block,
     const mlib_u8 *ref_block, mlib_s32 frm_stride,
     mlib_s32 fld_stride);
mlib_status mlib_VideoInterpY_U8_U8_16x8(mlib_u8 *curr_block,
     const mlib_u8 *ref_block, mlib_s32 frm_stride,
     mlib_s32 fld_stride);
mlib_status mlib_VideoInterpY_U8_U8_8x16(mlib_u8 *curr_block,
     const mlib_u8 *ref_block, mlib_s32 frm_stride,
     mlib_s32 fld_stride);
mlib_status mlib_VideoInterpY_U8_U8_8x8(mlib_u8 *curr_block,
     const mlib_u8 *ref_block, mlib_s32 frm_stride,
     mlib_s32 fld_stride);
mlib_status mlib_VideoInterpY_U8_U8_8x4(mlib_u8 *curr_block,
     const mlib_u8 *ref_block, mlib_s32 frm_stride,
     mlib_s32 fld_stride);

Description

Each of these functions performs half-pixel interpolation in the Y direction for a reference block of data type mlib_u8 and a current block of data type mlib_u8. In this mode, the motion-compensated reference block becomes the current block. Thus, the stride applies to both the input reference block and the current block.

Parameters

Each of the functions takes the following arguments:

curr_block

Pointer to the current block. curr_block must be 8-byte aligned.

ref_block

Pointer to the reference block.

frm_stride

Stride, in bytes, between adjacent rows in a frame in both the current block and reference block. frm_stride must be a multiple of eight.

fld_stride

Stride, in bytes, between adjacent rows in a field in both the current block and reference block. fld_stride must be a multiple of eight.

Return Values

Each of the functions returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.

Attributes

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE
ATTRIBUTE VALUE
Interface Stability
Committed
MT-Level
MT-Safe

See also

mlib_VideoAddBlock_U8_S16(3MLIB), mlib_VideoCopyRef_S16_U8(3MLIB), mlib_VideoCopyRef_S16_U8_16x16(3MLIB), mlib_VideoCopyRef_U8_U8(3MLIB), mlib_VideoCopyRef_U8_U8_16x16(3MLIB), mlib_VideoCopyRefAve_U8_U8(3MLIB), mlib_VideoCopyRefAve_U8_U8_16x16(3MLIB), mlib_VideoH263OverlappedMC_S16_U8(3MLIB), mlib_VideoH263OverlappedMC_U8_U8(3MLIB), mlib_VideoInterpAveX_U8_U8(3MLIB), mlib_VideoInterpAveX_U8_U8_16x16(3MLIB), mlib_VideoInterpAveXY_U8_U8(3MLIB), mlib_VideoInterpAveXY_U8_U8_16x16(3MLIB), mlib_VideoInterpAveY_U8_U8(3MLIB), mlib_VideoInterpAveY_U8_U8_16x16(3MLIB), mlib_VideoInterpX_S16_U8(3MLIB), mlib_VideoInterpX_S16_U8_16x16(3MLIB), mlib_VideoInterpX_U8_U8(3MLIB), mlib_VideoInterpXY_S16_U8(3MLIB), mlib_VideoInterpXY_S16_U8_16x16(3MLIB), mlib_VideoInterpXY_U8_U8(3MLIB), mlib_VideoInterpXY_U8_U8_16x16(3MLIB), mlib_VideoInterpY_S16_U8(3MLIB), mlib_VideoInterpY_S16_U8_16x16(3MLIB), mlib_VideoInterpY_U8_U8(3MLIB), mlib_VideoP64Decimate_U8_U8(3MLIB), mlib_VideoP64Loop_S16_U8(3MLIB), mlib_VideoP64Loop_U8_U8(3MLIB), attributes(5)