/******************************************************************************
*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*****************************************************************************
* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
*/
/**
******************************************************************************
* @file ih264e_distortion_metrics.c
*
* @brief
* This file contains definitions of routines that compute distortion
* between two macro/sub blocks of identical dimensions
*
* @author
* Ittiam
*
* @par List of Functions:
* - ime_sub_pel_compute_sad_16x16()
* - ime_calculate_sad4_prog()
* - ime_calculate_sad3_prog()
* - ime_calculate_sad2_prog()
* - ime_compute_sad_16x16()
* - ime_compute_sad_16x16_fast()
* - ime_compute_sad_16x16_ea8()
* - ime_compute_sad_8x8()
* - ime_compute_sad_4x4()
* - ime_compute_sad_16x8()
* - ime_compute_satqd_16x16_lumainter()
* - ime_compute_satqd_8x16_chroma()
* - ime_compute_satqd_16x16_lumaintra()
*
*
* @remarks
* None
*
*******************************************************************************
*/
/*****************************************************************************/
/* File Includes */
/*****************************************************************************/
/* System include files */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* User include files */
#include "ime_typedefs.h"
#include "ime_defs.h"
#include "ime_macros.h"
#include "ime_statistics.h"
#include "ime_platform_macros.h"
#include "ime_distortion_metrics.h"
/*****************************************************************************/
/* Function Definitions */
/*****************************************************************************/
/**
******************************************************************************
*
* @brief computes distortion (SAD) at all subpel points about the src location
*
* @par Description
* This functions computes SAD at all points at a subpel distance from the
* current source location.
*
* @param[in] pu1_src
* UWORD8 pointer to the source
*
* @param[out] pu1_ref_half_x
* UWORD8 pointer to half pel buffer
*
* @param[out] pu1_ref_half_y
* UWORD8 pointer to half pel buffer
*
* @param[out] pu1_ref_half_xy
* UWORD8 pointer to half pel buffer
*
* @param[in] src_strd
* integer source stride
*
* @param[in] ref_strd
* integer ref stride
*
* @param[out] pi4_sad
* integer evaluated sad
* pi4_sad[0] - half x
* pi4_sad[1] - half x - 1
* pi4_sad[2] - half y
* pi4_sad[3] - half y - 1
* pi4_sad[4] - half xy
* pi4_sad[5] - half xy - 1
* pi4_sad[6] - half xy - strd
* pi4_sad[7] - half xy - 1 - strd
*
* @remarks
*
******************************************************************************
*/
void ime_sub_pel_compute_sad_16x16(UWORD8 *pu1_src,
UWORD8 *pu1_ref_half_x,
UWORD8 *pu1_ref_half_y,
UWORD8 *pu1_ref_half_xy,
WORD32 src_strd,
WORD32 ref_strd,
WORD32 *pi4_sad)
{
UWORD8 *pu1_ref_half_x_left = pu1_ref_half_x - 1;
UWORD8 *pu1_ref_half_y_top = pu1_ref_half_y - ref_strd;
UWORD8 *pu1_ref_half_xy_left = pu1_ref_half_xy - 1;
UWORD8 *pu1_ref_half_xy_top = pu1_ref_half_xy - ref_strd;
UWORD8 *pu1_ref_half_xy_top_left = pu1_ref_half_xy - ref_strd - 1;
WORD32 row, col;
memset(pi4_sad, 0, 8 * sizeof(WORD32));
for(row = 0; row < MB_SIZE; row++)
{
for(col = 0; col < MB_SIZE; col++)
{
WORD32 src;
WORD32 diff;
src = pu1_src[col];
diff = src - pu1_ref_half_x[col];
pi4_sad[0] += ABS(diff);
diff = src - pu1_ref_half_x_left[col];
pi4_sad[1] += ABS(diff);
diff = src - pu1_ref_half_y[col];
pi4_sad[2] += ABS(diff);
diff = src - pu1_ref_half_y_top[col];
pi4_sad[3] += ABS(diff);
diff = src - pu1_ref_half_xy[col];
pi4_sad[4] += ABS(diff);
diff = src - pu1_ref_half_xy_left[col];
pi4_sad[5] += ABS(diff);
diff = src - pu1_ref_half_xy_top[col];
pi4_sad[6] += ABS(diff);
diff = src - pu1_ref_half_xy_top_left[col];
pi4_sad[7] += ABS(diff);
}
pu1_src += src_strd;
pu1_ref_half_x += ref_strd;
pu1_ref_half_x_left += ref_strd;
pu1_ref_half_y += ref_strd;
pu1_ref_half_y_top += ref_strd;
pu1_ref_half_xy += ref_strd;
pu1_ref_half_xy_left += ref_strd;
pu1_ref_half_xy_top += ref_strd;
pu1_ref_half_xy_top_left += ref_strd;
}
}
/**
*******************************************************************************
*
* @brief compute sad
*
* @par Description: This function computes the sad at vertices of diamond grid
* centered at reference pointer and at unit distance from it.
*
* @param[in] pu1_ref
* UWORD8 pointer to the reference
*
* @param[out] pu1_src
* UWORD8 pointer to the source
*
* @param[in] ref_strd
* integer reference stride
*
* @param[in] src_strd
* integer source stride
*
* @param[out] pi4_sad
* pointer to integer array evaluated sad
*
* @returns sad at all evaluated vertexes
*
* @remarks none
*
*******************************************************************************
*/
void ime_calculate_sad4_prog(UWORD8 *pu1_ref,
UWORD8 *pu1_src,
WORD32 ref_strd,
WORD32 src_strd,
WORD32 *pi4_sad)
{
/* reference ptrs at unit 1 distance in diamond pattern centered at pu1_ref */
UWORD8 *left_ptr = pu1_ref - 1;
UWORD8 *right_ptr = pu1_ref + 1;
UWORD8 *top_ptr = pu1_ref - ref_strd;
UWORD8 *bot_ptr = pu1_ref + ref_strd;
/* temp var */
WORD32 count2, count3;
UWORD32 u4_ref_buf_offset = ref_strd - MB_SIZE;
UWORD32 u4_cur_buf_offset = src_strd - MB_SIZE;
memset(pi4_sad, 0, 4 * sizeof(WORD32));
for(count2 = MB_SIZE; count2 > 0; count2--)
{
for(count3 = MB_SIZE; count3 > 0 ; count3--)
{
WORD32 src;
WORD32 diff;
src = *pu1_src++;
diff = src - *left_ptr++;
pi4_sad[0] += ABS(diff);
diff = src - *right_ptr++;
pi4_sad[1] += ABS(diff);
diff = src - *top_ptr++;
pi4_sad[2] += ABS(diff);
diff = src - *bot_ptr++;
pi4_sad[3] += ABS(diff);
}
bot_ptr += u4_ref_buf_offset;
left_ptr += u4_ref_buf_offset;
right_ptr += u4_ref_buf_offset;
top_ptr += u4_ref_buf_offset;
pu1_src += u4_cur_buf_offset;
}
}
/**
*******************************************************************************
*
* @brief compute sad
*
* @par Description: This function computes the sad at vertices of diamond grid
* centered at reference pointer and at unit distance from it.
*
* @param[in] pu1_ref1, pu1_ref2, pu1_ref3
* UWORD8 pointer to the reference
*
* @param[out] pu1_src
* UWORD8 pointer to the source
*
* @param[in] ref_strd
* integer reference stride
*
* @param[in] src_strd
* integer source stride
*
* @param[out] pi4_sad
* pointer to integer array evaluated sad
*
* @returns sad at all evaluated vertexes
*
* @remarks none
*
*******************************************************************************
*/
void ime_calculate_sad3_prog(UWORD8 *pu1_ref1,
UWORD8 *pu1_ref2,
UWORD8 *pu1_ref3,
UWORD8 *pu1_src,
WORD32 ref_strd,
WORD32 src_strd,
WORD32 *pi4_sad)
{
/* temp var */
WORD32 i;
UWORD32 u4_ref_buf_offset = ref_strd - MB_SIZE;
UWORD32 u4_cur_buf_offset = src_strd - MB_SIZE;
for(i = 16; i > 0; i--)
{
USADA8(pu1_src, pu1_ref1, pi4_sad[0]);
USADA8(pu1_src, pu1_ref2, pi4_sad[1]);
USADA8(pu1_src, pu1_ref3, pi4_sad[2]);
pu1_src += 4;
pu1_ref1 += 4;
pu1_ref2 += 4;
pu1_ref3 += 4;
USADA8(pu1_src, pu1_ref1, pi4_sad[0]);
USADA8(pu1_src, pu1_ref2, pi4_sad[1]);
USADA8(pu1_src, pu1_ref3, pi4_sad[2]);
pu1_src += 4;
pu1_ref1 += 4;
pu1_ref2 += 4;
pu1_ref3 += 4;
USADA8(pu1_src, pu1_ref1, pi4_sad[0]);
USADA8(pu1_src, pu1_ref2, pi4_sad[1]);
USADA8(pu1_src, pu1_ref3, pi4_sad[2]);
pu1_src += 4;
pu1_ref1 += 4;
pu1_ref2 += 4;
pu1_ref3 += 4;
USADA8(pu1_src, pu1_ref1, pi4_sad[0]);
USADA8(pu1_src, pu1_ref2, pi4_sad[1]);
USADA8(pu1_src, pu1_ref3, pi4_sad[2]);
pu1_src += 4;
pu1_ref1 += 4;
pu1_ref2 += 4;
pu1_ref3 += 4;
pu1_src += u4_cur_buf_offset;
pu1_ref1 += u4_ref_buf_offset;
pu1_ref2 += u4_ref_buf_offset;
pu1_ref3 += u4_ref_buf_offset;
}
}
/**
*******************************************************************************
*
* @brief compute sad
*
* @par Description: This function computes the sad at vertices of diamond grid
* centered at reference pointer and at unit distance from it.
*
* @param[in] pu1_ref1, pu1_ref2
* UWORD8 pointer to the reference
*
* @param[out] pu1_src
* UWORD8 pointer to the source
*
* @param[in] ref_strd
* integer reference stride
*
* @param[in] src_strd
* integer source stride
*
* @param[out] pi4_sad
* pointer to integer array evaluated sad
*
* @returns sad at all evaluated vertexes
*
* @remarks none
*
*******************************************************************************
*/
void ime_calculate_sad2_prog(UWORD8 *pu1_ref1,
UWORD8 *pu1_ref2,
UWORD8 *pu1_src,
WORD32 ref_strd,
WORD32 src_strd,
WORD32 *pi4_sad)
{
/* temp var */
WORD32 i;
UWORD32 u4_ref_buf_offset = ref_strd - MB_SIZE;
UWORD32 u4_cur_buf_offset = src_strd - MB_SIZE;
for(i = 16; i > 0; i--)
{
USADA8(pu1_src, pu1_ref1, pi4_sad[0]);
USADA8(pu1_src, pu1_ref2, pi4_sad[1]);
pu1_src += 4;
pu1_ref1 += 4;
pu1_ref2 += 4;
USADA8(pu1_src, pu1_ref1, pi4_sad[0]);
USADA8(pu1_src, pu1_ref2, pi4_sad[1]);
pu1_src += 4;
pu1_ref1 += 4;
pu1_ref2 += 4;
USADA8(pu1_src, pu1_ref1, pi4_sad[0]);
USADA8(pu1_src, pu1_ref2, pi4_sad[1]);
pu1_src += 4;
pu1_ref1 += 4;
pu1_ref2 += 4;
USADA8(pu1_src, pu1_ref1, pi4_sad[0]);
USADA8(pu1_src, pu1_ref2, pi4_sad[1]);
pu1_src += 4;
pu1_ref1 += 4;
pu1_ref2 += 4;
pu1_src += u4_cur_buf_offset;
pu1_ref1 += u4_ref_buf_offset;
pu1_ref2 += u4_ref_buf_offset;
}
}
/**
******************************************************************************
*
* @brief computes distortion (SAD) between 2 16x16 blocks
*
* @par Description
* This functions computes SAD between 2 16x16 blocks. There is a provision
* for early exit if the up-to computed SAD exceeds maximum allowed SAD. To
* compute the distortion of the entire block set u4_max_sad to USHRT_MAX.
*
* @param[in] pu1_src
* UWORD8 pointer to the source
*
* @param[out] pu1_dst
* UWORD8 pointer to the destination
*
* @param[in] src_strd
* integer source stride
*
* @param[in] dst_strd
* integer destination stride
*
* @param[in] i4_max_sad
* integer maximum allowed distortion
*
* @param[out] pi4_mb_distortion
* integer evaluated sad
*
* @remarks
*
******************************************************************************
*/
void ime_compute_sad_16x16(UWORD8 *pu1_src,
UWORD8 *pu1_est,
WORD32 src_strd,
WORD32 est_strd,
WORD32 i4_max_sad,
WORD32 *pi4_mb_distortion)
{
WORD32 i4_sad = 0;
UWORD32 u4_src_offset = src_strd - 16;
UWORD32 u4_est_offset = est_strd - 16;
UWORD32 i;
GATHER_16x16_SAD_EE_STATS(gu4_16x16_sad_ee_stats, 16);
for(i = 16; i > 0; i--)
{
USADA8(pu1_src, pu1_est, i4_sad);
pu1_src += 4;
pu1_est += 4;
USADA8(pu1_src, pu1_est, i4_sad);
pu1_src += 4;
pu1_est += 4;
USADA8(pu1_src, pu1_est, i4_sad);
pu1_src += 4;
pu1_est += 4;
USADA8(pu1_src, pu1_est, i4_sad);
pu1_src += 4;
pu1_est += 4;
/* early exit */
if(i4_max_sad < i4_sad)
{
GATHER_16x16_SAD_EE_STATS(gu4_16x16_sad_ee_stats, 16-i);
*pi4_mb_distortion = i4_sad;
return ;
}
pu1_src += u4_src_offset;
pu1_est += u4_est_offset;
}
*pi4_mb_distortion = i4_sad;
return ;
}
/**
******************************************************************************
*
* @brief computes distortion (SAD) between 2 16x16 blocks (fast mode)
*
* @par Description
* This functions computes SAD between 2 16x16 blocks. There is a provision
* for early exit if the up-to computed SAD exceeds maximum allowed SAD. To
* compute the distortion of the entire block set u4_max_sad to USHRT_MAX.
*
* @param[in] pu1_src
* UWORD8 pointer to the source
*
* @param[out] pu1_dst
* UWORD8 pointer to the destination
*
* @param[in] src_strd
* integer source stride
*
* @param[in] dst_strd
* integer destination stride
*
* @param[in] i4_max_sad
* integer maximum allowed distortion
*
* @param[out] pi4_mb_distortion
* integer evaluated sad
*
* @remarks
*
******************************************************************************
*/
void ime_compute_sad_16x16_fast(UWORD8 *pu1_src,
UWORD8 *pu1_est,
WORD32 src_strd,
WORD32 est_strd,
WORD32 i4_max_sad,
WORD32 *pi4_mb_distortion)
{
WORD32 i4_sad = 0;
UWORD32 u4_src_offset = 2 * src_strd - 16;
UWORD32 u4_est_offset = 2 * est_strd - 16;
UWORD32 i;
UNUSED(i4_max_sad);
for(i = 16; i > 0; i-= 2)
{
USADA8(pu1_src, pu1_est, i4_sad);
pu1_src += 4;
pu1_est += 4;
USADA8(pu1_src, pu1_est, i4_sad);
pu1_src += 4;
pu1_est += 4;
USADA8(pu1_src, pu1_est, i4_sad);
pu1_src += 4;
pu1_est += 4;
USADA8(pu1_src, pu1_est, i4_sad);
pu1_src += 4;
pu1_est += 4;
pu1_src += u4_src_offset;
pu1_est += u4_est_offset;
}
*pi4_mb_distortion = (i4_sad << 1);
return ;
}
/**
******************************************************************************
*
* @brief computes distortion (SAD) between 2 8x8 blocks
*
* @par Description
* This functions computes SAD between 2 8x8 blocks. There is a provision
* for early exit if the up-to computed SAD exceeds maximum allowed SAD. To
* compute the distortion of the entire block set u4_max_sad to USHRT_MAX.
*
* @param[in] pu1_src
* UWORD8 pointer to the source
*
* @param[out] pu1_dst
* UWORD8 pointer to the destination
*
* @param[in] src_strd
* integer source stride
*
* @param[in] dst_strd
* integer destination stride
*
* @param[in] u4_max_sad
* integer maximum allowed distortion
*
* @param[out] i4_sad
* integer evaluated sad
*
* @remarks
*
******************************************************************************
*/
void ime_compute_sad_8x8(UWORD8 *pu1_src,
UWORD8 *pu1_est,
WORD32 src_strd,
WORD32 est_strd,
WORD32 i4_max_sad,
WORD32 *pi4_mb_distortion)
{
WORD32 i4_sad = 0;
UWORD32 u4_src_offset = src_strd - 8;
UWORD32 u4_est_offset = est_strd - 8;
UWORD32 i, j;
WORD16 temp;
for(i = 8; i > 0; i--)
{
for(j = 8; j > 0; j--)
{
/* SAD */
temp = *pu1_src++ - *pu1_est++;
i4_sad += ABS(temp);
}
/* early exit */
if(i4_max_sad < i4_sad)
{
*pi4_mb_distortion = i4_sad;
return;
}
pu1_src += u4_src_offset;
pu1_est += u4_est_offset;
}
*pi4_mb_distortion = i4_sad;
}
/**
******************************************************************************
*
* @brief computes distortion (SAD) between 2 4x4 blocks
*
* @par Description
* This functions computes SAD between 2 4x4 blocks. There is a provision
* for early exit if the up-to computed SAD exceeds maximum allowed SAD. To
* compute the distortion of the entire block set u4_max_sad to USHRT_MAX.
*
* @param[in] pu1_src
* UWORD8 pointer to the source
*
* @param[out] pu1_dst
* UWORD8 pointer to the destination
*
* @param[in] src_strd
* integer source stride
*
* @param[in] dst_strd
* integer destination stride
*
* @param[in] u4_max_sad
* integer maximum allowed distortion
*
* @param[out] pi4_mb_distortion
* integer evaluated sad
*
* @remarks
*
******************************************************************************
*/
void ime_compute_sad_4x4
(
UWORD8 *pu1_src,
UWORD8 *pu1_est,
WORD32 src_strd,
WORD32 est_strd,
WORD32 i4_max_sad,
WORD32 *pi4_mb_distortion
)
{
WORD32 i4_sad = 0;
UNUSED(i4_max_sad);
USADA8(pu1_src, pu1_est, i4_sad);
pu1_src += src_strd;
pu1_est += est_strd;
USADA8(pu1_src, pu1_est, i4_sad);
pu1_src += src_strd;
pu1_est += est_strd;
USADA8(pu1_src, pu1_est, i4_sad);
pu1_src += src_strd;
pu1_est += est_strd;
USADA8(pu1_src, pu1_est, i4_sad);
*pi4_mb_distortion = i4_sad;
}
/**
******************************************************************************
*
* @brief computes distortion (SAD) between 2 16x8 blocks
*
*
* @par Description
* This functions computes SAD between 2 16x8 blocks. There is a provision
* for early exit if the up-to computed SAD exceeds maximum allowed SAD. To
* compute the distortion of the entire block set u4_max_sad to USHRT_MAX.
*
* @param[in] pu1_src
* UWORD8 pointer to the source
*
* @param[out] pu1_dst
* UWORD8 pointer to the destination
*
* @param[in] src_strd
* integer source stride
*
* @param[in] dst_strd
* integer destination stride
*
* @param[in] u4_max_sad
* integer maximum allowed distortion
*
* @param[out] pi4_mb_distortion
* integer evaluated sad
*
* @remarks
*
******************************************************************************
*/
void ime_compute_sad_16x8
(
UWORD8 *pu1_src,
UWORD8 *pu1_est,
WORD32 src_strd,
WORD32 est_strd,
WORD32 i4_max_sad,
WORD32 *pi4_mb_distortion
)
{
WORD32 i4_sad = 0;
UWORD32 u4_src_offset = src_strd - 16;
UWORD32 u4_est_offset = est_strd - 16;
UWORD32 i, j;
WORD16 temp;
GATHER_16x8_SAD_EE_STATS(gu4_16x8_sad_ee_stats, 8);
for(i = 8; i > 0; i--)
{
for(j = 16; j > 0; j--)
{
/* SAD */
temp = *pu1_src++ - *pu1_est++;
i4_sad += ABS(temp);
}
/* early exit */
if(i4_max_sad < i4_sad)
{
GATHER_16x8_SAD_EE_STATS(gu4_16x8_sad_ee_stats, 8-i);
*pi4_mb_distortion = i4_sad;
return;
}
pu1_src += u4_src_offset;
pu1_est += u4_est_offset;
}
*pi4_mb_distortion = i4_sad;
return;
}
/**
******************************************************************************
*
* @brief computes distortion (SAD) between 2 16x16 blocks
*
* @par Description
* This functions computes SAD between 2 16x16 blocks. There is a provision
* for early exit if the up-to computed SAD exceeds maximum allowed SAD. To
* compute the distortion of the entire block set u4_max_sad to USHRT_MAX.
*
* @param[in] pu1_src
* UWORD8 pointer to the source
*
* @param[out] pu1_dst
* UWORD8 pointer to the destination
*
* @param[in] src_strd
* integer source stride
*
* @param[in] dst_strd
* integer destination stride
*
* @param[in] i4_max_sad
* integer maximum allowed distortion
*
* @param[out] pi4_mb_distortion
* integer evaluated sad
*
* @remarks
*
******************************************************************************
*/
void ime_compute_sad_16x16_ea8(UWORD8 *pu1_src,
UWORD8 *pu1_est,
WORD32 src_strd,
WORD32 est_strd,
WORD32 i4_max_sad,
WORD32 *pi4_mb_distortion)
{
WORD32 i4_sad = 0;
UWORD32 u4_src_offset = src_strd - 16;
UWORD32 u4_est_offset = est_strd - 16;
UWORD32 i, j;
WORD16 temp;
UWORD8 *pu1_src_temp = pu1_src + src_strd;
UWORD8 *pu1_est_temp = pu1_est + est_strd;
for(i = 16; i > 0; i -= 2)
{
for(j = 16; j > 0; j--)
{
/* SAD */
temp = *pu1_src++ - *pu1_est++;
i4_sad += ABS(temp);
}
pu1_src += (u4_src_offset + src_strd);
pu1_est += (u4_est_offset + est_strd);
}
/* early exit */
if(i4_max_sad < i4_sad)
{
*pi4_mb_distortion = i4_sad;
return;
}
pu1_src = pu1_src_temp;
pu1_est = pu1_est_temp;
for(i = 16; i > 0; i -= 2)
{
for(j = 16; j > 0; j--)
{
/* SAD */
temp = *pu1_src++ - *pu1_est++;
i4_sad += ABS(temp);
}
pu1_src += u4_src_offset + src_strd;
pu1_est += u4_est_offset + est_strd;
}
*pi4_mb_distortion = i4_sad;
return;
}
/**
*******************************************************************************
*
* @brief This function computes SAD between two 16x16 blocks
* It also computes if the block will be zero after H264 transform and quant for
* Intra 16x16 blocks
*
* @param[in] pu1_src
* UWORD8 pointer to the source
*
* @param[out] pu1_dst
* UWORD8 pointer to the destination
*
* @param[in] src_strd
* integer source stride
*
* @param[in] dst_strd
* integer destination stride
*
* @param[in] pu2_thrsh
* Threshold for each element of transofrmed quantized block
*
* @param[out] pi4_mb_distortion
* integer evaluated sad
*
* @param[out] pu4_is_zero
* Poitner to store if the block is zero after transform and quantization
*
* @remarks
*
******************************************************************************
*/
void ime_compute_satqd_16x16_lumainter(UWORD8 *pu1_src,
UWORD8 *pu1_est,
WORD32 src_strd,
WORD32 est_strd,
UWORD16 *pu2_thrsh,
WORD32 *pi4_mb_distortion,
UWORD32 *pu4_is_non_zero)
{
UWORD32 i,j;
WORD16 s1,s2,s3,s4,sad_1,sad_2,ls1,ls2,ls3,ls4,ls5,ls6,ls7,ls8;
UWORD8 *pu1_src_lp,*pu1_est_lp;
UWORD32 sad = 0;
(*pi4_mb_distortion) = 0;
for(i=0;i<4;i++)
{
for(j=0;j<4;j++)
{
pu1_src_lp = pu1_src + 4*j;
pu1_est_lp = pu1_est + 4*j;
s1 = ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[3] - (WORD16)pu1_est_lp[3]);
s4 = ABS((WORD16)pu1_src_lp[1] - (WORD16)pu1_est_lp[1])+ ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2]);
pu1_src_lp += src_strd;
pu1_est_lp += est_strd;
s2 = ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[3] - (WORD16)pu1_est_lp[3]);
s3 = ABS((WORD16)pu1_src_lp[1] - (WORD16)pu1_est_lp[1])+ ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2]);
pu1_src_lp += src_strd;
pu1_est_lp += est_strd;
s2 += ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[3] - (WORD16)pu1_est_lp[3]);
s3 += ABS((WORD16)pu1_src_lp[1] - (WORD16)pu1_est_lp[1])+ ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2]);
pu1_src_lp += src_strd;
pu1_est_lp += est_strd;
s1 += ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[3] - (WORD16)pu1_est_lp[3]);
s4 += ABS((WORD16)pu1_src_lp[1] - (WORD16)pu1_est_lp[1])+ ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2]);
sad_1 = s1+s2+s3+s4;
if(sad == 0)
{
sad_2 = sad_1<<1;
ls1 = sad_2 -(s2 + s3);
ls2 = sad_2 -(s1 + s4);
ls3 = sad_2 -(s3 + s4);
ls4 = sad_2 -(s3 - (s1<<1));
ls5 = sad_2 -(s4 - (s2<<1));
ls6 = sad_2 -(s1 + s2);
ls7 = sad_2 -(s2 - (s4<<1));
ls8 = sad_2 -(s1 - (s3<<1));
if(
pu2_thrsh[8] <= sad_1 ||
pu2_thrsh[0] <= ls2 ||
pu2_thrsh[1] <= ls1 ||
pu2_thrsh[2] <= ls8 ||
pu2_thrsh[3] <= ls5 ||
pu2_thrsh[4] <= ls6 ||
pu2_thrsh[5] <= ls3 ||
pu2_thrsh[6] <= ls7 ||
pu2_thrsh[7] <= ls4
)sad = 1;
}
(*pi4_mb_distortion) += sad_1;
}
pu1_src += (src_strd *4);
pu1_est += (est_strd *4);
}
*pu4_is_non_zero = sad;
}
/**
******************************************************************************
*
* @brief computes distortion (SAD and SAQTD) between 2 16x8 (interleaved) chroma blocks
*
*
* @par Description
* This functions computes SAD between2 16x8 chroma blocks(interleaved)
* It also checks if the SATDD(Sum of absolute transformed wuqntized differnce beteern the blocks
* If SAQTD is zero, it gives back zero
* Other wise sad is retrned
* There is no provison for early exit
*
* The transform done here is the transform for chroma blocks in H264
*
* @param[in] pu1_src
* UWORD8 pointer to the source
*
* @param[out] pu1_dst
* UWORD8 pointer to the destination
*
* @param[in] src_strd
* integer source stride
*
* @param[in] dst_strd
* integer destination stride
*
* @param[in] pu2_thrsh
* Threshold for each element of transofrmed quantized block
*
* @param[out] pi4_mb_distortion
* integer evaluated sad
*
* @remarks
* Fucntion code is nit updated.
* Will require debugging and minor modifications
*
******************************************************************************
*/
void ime_compute_satqd_8x16_chroma(UWORD8 *pu1_src,
UWORD8 *pu1_est,
WORD32 src_strd,
WORD32 est_strd,
WORD32 max_sad,
UWORD16 *thrsh)
{
WORD32 i,j,plane;
WORD16 s1,s2,s3,s4,sad_1,sad_2,ls1,ls2,ls3,ls4,ls5,ls6,ls7,ls8;
UWORD8 *pu1_src_lp,*pu1_est_lp,*pu1_src_plane,*pu1_est_plane;
WORD32 sad =0;
UNUSED(max_sad);
pu1_src_plane = pu1_src;
pu1_est_plane = pu1_est;
for(plane =0;plane<2;plane++)
{
for(i=0;i<4;i++)
{
for(j=0;j<4;j++)
{
pu1_src_lp = pu1_src + 8*j;
pu1_est_lp = pu1_est + 8*j;
s1 = ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[6] - (WORD16)pu1_est_lp[6]);
s4 = ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2])+ ABS((WORD16)pu1_src_lp[4] - (WORD16)pu1_est_lp[4]);
pu1_src_lp += src_strd;
pu1_est_lp += est_strd;
s2 = ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[6] - (WORD16)pu1_est_lp[6]);
s3 = ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2])+ ABS((WORD16)pu1_src_lp[4] - (WORD16)pu1_est_lp[4]);
pu1_src_lp += src_strd;
pu1_est_lp += est_strd;
s2 += ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[6] - (WORD16)pu1_est_lp[6]);
s3 += ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2])+ ABS((WORD16)pu1_src_lp[4] - (WORD16)pu1_est_lp[4]);
pu1_src_lp += src_strd;
pu1_est_lp += est_strd;
s1 += ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[6] - (WORD16)pu1_est_lp[6]);
s4 += ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2])+ ABS((WORD16)pu1_src_lp[4] - (WORD16)pu1_est_lp[4]);
sad_1 = s1+s2+s3+s4;
sad_2 = sad_1<<1;
ls1 = sad_2 -(s2 + s3);
ls2 = sad_2 -(s1 + s4);
ls3 = sad_2 -(s3 + s4);
ls4 = sad_2 -(s3 - (s1<<1));
ls5 = sad_2 -(s4 - (s2<<1));
ls6 = sad_2 -(s1 + s2);
ls7 = sad_2 -(s2 - (s4<<1));
ls8 = sad_2 -(s1 - (s3<<1));
if(
//thrsh[0] > sad_1 && Chroma Dc is checked later
thrsh[1] > ls1 &&
thrsh[2] > sad_1 &&
thrsh[3] > ls2 &&
thrsh[4] > ls3 &&
thrsh[5] > ls4 &&
thrsh[6] > ls3 &&
thrsh[7] > ls5 &&
thrsh[8] > sad_1 &&
thrsh[9] > ls1 &&
thrsh[10]> sad_1 &&
thrsh[11]> ls2 &&
thrsh[12]> ls6 &&
thrsh[13]> ls7 &&
thrsh[14]> ls6 &&
thrsh[15]> ls8
)
{
/*set current sad to be zero*/
}
else
return ;
sad += sad_1;
}
pu1_src += (src_strd *4);
pu1_est += (est_strd *4);
}
if(sad < (thrsh[0]<<1))sad = 0;
else return ;
pu1_src = pu1_src_plane+1;
pu1_est = pu1_est_plane+1;
}
return ;
}
/**
******************************************************************************
*
* @brief computes distortion (SAD and SAQTD) between 2 16x16 blocks
*
* @par Description
* This functions computes SAD between 2 16x16 blocks.
* It also checks if the SATDD(Sum of absolute transformed wuqntized differnce beteern the blocks
* If SAQTD is zero, it gives back zero
* Other wise sad is retrned
* There is no provison for early exit
*
* The transform done here is the transform for inter 16x16 blocks in H264
*
* @param[in] pu1_src
* UWORD8 pointer to the source
*
* @param[out] pu1_dst
* UWORD8 pointer to the destination
*
* @param[in] src_strd
* integer source stride
*
* @param[in] dst_strd
* integer destination stride
*
* @param[in] pu2_thrsh
* Threshold for each element of transofrmed quantized block
*
* @param[out] pi4_mb_distortion
* integer evaluated sad
*
* @remarks
*
******************************************************************************
*/
void ime_compute_satqd_16x16_lumaintra(UWORD8 *pu1_src,
UWORD8 *pu1_est,
WORD32 src_strd,
WORD32 est_strd,
WORD32 max_sad,
UWORD16 *thrsh,
WORD32 *pi4_mb_distortion,
UWORD8 *sig_nz_sad)
{
UWORD32 i,j;
WORD16 s1[4],s2[4],s3[4],s4[4],sad[4];
UWORD8 *pu1_src_lp,*pu1_est_lp;
UWORD8 *sig_sad_dc;
UWORD32 nz_sad_sig = 0;
UNUSED(max_sad);
*pi4_mb_distortion =0;
sig_sad_dc = sig_nz_sad;
sig_nz_sad++;
for(i=0;i<4;i++)
{
for(j=0;j<4;j++)
{
pu1_src_lp = pu1_src + 4*j;
pu1_est_lp = pu1_est + 4*j;
s1[j] = ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[3] - (WORD16)pu1_est_lp[3]);
s4[j] = ABS((WORD16)pu1_src_lp[1] - (WORD16)pu1_est_lp[1])+ ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2]);
pu1_src_lp += src_strd;
pu1_est_lp += est_strd;
s2[j] = ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[3] - (WORD16)pu1_est_lp[3]);
s3[j] = ABS((WORD16)pu1_src_lp[1] - (WORD16)pu1_est_lp[1])+ ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2]);
pu1_src_lp += src_strd;
pu1_est_lp += est_strd;
s2[j] += ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[3] - (WORD16)pu1_est_lp[3]);
s3[j] += ABS((WORD16)pu1_src_lp[1] - (WORD16)pu1_est_lp[1])+ ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2]);
pu1_src_lp += src_strd;
pu1_est_lp += est_strd;
s1[j] += ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[3] - (WORD16)pu1_est_lp[3]);
s4[j] += ABS((WORD16)pu1_src_lp[1] - (WORD16)pu1_est_lp[1])+ ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2]);
sad[j] = ((s1[j]+s2[j]+s3[j]+s4[j])<<1);
}
for(j=0;j<4;j++)
{
if(
//thrsh[0] > (sad[j] >> 1) &&Dc goes in the other part
thrsh[1] > (sad[j] -(s2[j] + s3[j])) &&
thrsh[2] > (sad[j]>>1) &&
thrsh[3] > (sad[j] -(s1[j] + s4[j])) &&
thrsh[4] > (sad[j] -(s3[j] + s4[j])) &&
thrsh[5] > (sad[j] -(s3[j] - (s1[j]<<1))) &&
thrsh[6] > (sad[j] -(s3[j] + s4[j])) &&
thrsh[7] > (sad[j] -(s4[j] - (s2[j]<<1))) &&
thrsh[8] > (sad[j]>>1) &&
thrsh[9] > (sad[j] -(s2[j] + s3[j])) &&
thrsh[10]> (sad[j]>>1) &&
thrsh[11]> (sad[j] -(s1[j] + s4[j])) &&
thrsh[12]> (sad[j] -(s1[j] + s2[j])) &&
thrsh[13]> (sad[j] -(s2[j] - (s4[j]<<1))) &&
thrsh[14]> (sad[j] -(s1[j] + s2[j])) &&
thrsh[15]> (sad[j] -(s1[j] - (s3[j]<<1)))
)
{
//sad[j] = 0; /*set current sad to be zero*/
sig_nz_sad[j] = 0;/*Signal that the sad is zero*/
}
else
{
sig_nz_sad[j] = 1;/*signal that sad is non zero*/
nz_sad_sig = 1;
}
(*pi4_mb_distortion) += (sad[j]>>1);
//if((*pi4_mb_distortion) >= max_sad)return; /*return or some thing*/
}
sig_nz_sad += 4;
pu1_src += (src_strd *4);
pu1_est += (est_strd *4);
}
if((*pi4_mb_distortion) < thrsh[0]<<2)
{
*sig_sad_dc = 0;
if(nz_sad_sig == 0)(*pi4_mb_distortion) = 0;
}
else *sig_sad_dc = 1;
}