/****************************************************************************** * * 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 #include #include /* 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; }