mlib_VideoP64Loop_S16_U8

- applies a 2-dimensional (2D) 3x3 spatial filter on the reference block

Synopsis

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

mlib_status mlib_VideoP64Loop_S16_U8(mlib_s16 mc_block[64],
     const mlib_u8 *ref_block, mlib_s32 stride);

Description

The mlib_VideoP64Loop_S16_U8() function applies a 2-dimensional (2D) 3x3 spatial filter on the reference block. The filter is separable into 1D horizontal and vertical functions, where the filter coefficients are 0.25, 0.5, 0.25, except at the block edges where the coefficients are 0, 1, 0. In this mode, the output must be added to the IDCT output to reconstruct the block in the current frame. Thus, the stride applies only to the input reference block. This function requires the motion-compensated block to be 8-bit aligned.

Parameters

The function takes the following arguments:

mc_block

Pointer to the motion-compensated reference block.

ref_block

Pointer to the reference block.

stride

Stride, in bytes, between adjacent rows in the reference block.

Return Values

The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.

Attributes

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

See Also

mlib_VideoAddBlock_U8_S16(3MLIB), mlib_VideoCopyRef_S16_U8(3MLIB), mlib_VideoCopyRef_S16_U8_16x16(3MLIB), mlib_VideoCopyRef_U8_U8_16x16(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_VideoInterpY_U8_U8_16x16(3MLIB), mlib_VideoP64Decimate_U8_U8(3MLIB), mlib_VideoP64Loop_U8_U8(3MLIB), attributes(5)