ref: 02bd787c346d2672b7f00a13df4d56520ac3c2d7
dir: /test/encoder/EncUT_GetIntraPredictor.cpp/
#include<gtest/gtest.h> #include<stdlib.h> #include "get_intra_predictor.h" #include "ls_defines.h" #include "macros.h" using namespace WelsSVCEnc; TEST(GetIntraPredictorTest, TestGetI4x4LumaPredV) { uint8_t *pPred = new uint8_t[64]; uint8_t *pRef = new uint8_t[64]; for (int i=0; i<64; i++) pRef[i] = rand() % 256; const int32_t kkiStride = 0; const uint32_t kuiCpuFlag = 0; WelsInitFillingPredFuncs(kuiCpuFlag); WelsI4x4LumaPredV_c(pPred, pRef, kkiStride); for (int i=0; i<4; i++) EXPECT_EQ(LD32(&pPred[4*i]),LD32(&pRef[-kkiStride])); delete []pRef; delete []pPred; } TEST(GetIntraPredictorTest, TestGetI4x4LumaPredH) { const int32_t kiStride = rand()%256+16; const uint32_t kiStride2 = (kiStride<<1)-1; const uint32_t kiStride3 = kiStride + kiStride2; uint8_t *pPred = new uint8_t[64]; uint8_t *pRef = new uint8_t[kiStride3+1]; for (int i=0; i<(static_cast<int32_t>(kiStride3+1)); i++) pRef[i] = rand() % 256; pRef++; const uint8_t kuiH1 = pRef[-1]; const uint8_t kuiH2 = pRef[kiStride-1]; const uint8_t kuiH3 = pRef[kiStride2]; const uint8_t kuiH4 = pRef[kiStride3]; const uint8_t kuiV1[4] = {kuiH1, kuiH1, kuiH1, kuiH1}; const uint8_t kuiV2[4] = {kuiH2, kuiH2, kuiH2, kuiH2}; const uint8_t kuiV3[4] = {kuiH3, kuiH3, kuiH3, kuiH3}; const uint8_t kuiV4[4] = {kuiH4, kuiH4, kuiH4, kuiH4}; const uint32_t kuiCpuFlag = 0; ENFORCE_STACK_ALIGN_1D(uint8_t, uiV, 16, 16)// TobeCont'd about assign opt as follows ST32(&uiV[0], LD32(kuiV1)); ST32(&uiV[4], LD32(kuiV2)); ST32(&uiV[8], LD32(kuiV3)); ST32(&uiV[12], LD32(kuiV4)); WelsInitFillingPredFuncs(kuiCpuFlag); WelsI4x4LumaPredH_c(pPred, pRef, kiStride); for (int i=0; i<4; i++) EXPECT_EQ(LD32(&pPred[4*i]), LD32(&uiV[4*i])); pRef--; delete []pRef; delete []pPred; } TEST(GetIntraPredictorTest, TestGetI4x4LumaPredDDL) { const int32_t kiStride = 0; uint8_t *pPred = new uint8_t[64]; uint8_t *pRef = new uint8_t[64]; for (int i=0; i<64; i++) pRef[i] = rand() % 256; const uint8_t kuiT0 = pRef[-kiStride]; const uint8_t kuiT1 = pRef[1-kiStride]; const uint8_t kuiT2 = pRef[2-kiStride]; const uint8_t kuiT3 = pRef[3-kiStride]; const uint8_t kuiT4 = pRef[4-kiStride]; const uint8_t kuiT5 = pRef[5-kiStride]; const uint8_t kuiT6 = pRef[6-kiStride]; const uint8_t kuiT7 = pRef[7-kiStride]; const uint8_t kuiDDL0 = (2 + kuiT0 + kuiT2 + (kuiT1<<1))>>2; const uint8_t kuiDDL1 = (2 + kuiT1 + kuiT3 + (kuiT2<<1))>>2; const uint8_t kuiDDL2 = (2 + kuiT2 + kuiT4 + (kuiT3<<1))>>2; const uint8_t kuiDDL3 = (2 + kuiT3 + kuiT5 + (kuiT4<<1))>>2; const uint8_t kuiDDL4 = (2 + kuiT4 + kuiT6 + (kuiT5<<1))>>2; const uint8_t kuiDDL5 = (2 + kuiT5 + kuiT7 + (kuiT6<<1))>>2; const uint8_t kuiDDL6 = (2 + kuiT6 + kuiT7 + (kuiT7<<1))>>2; ENFORCE_STACK_ALIGN_1D(uint8_t, uiV, 16, 16) // TobeCont'd about assign opt as follows uiV[0] = kuiDDL0; uiV[1] = uiV[4] = kuiDDL1; uiV[2] = uiV[5] = uiV[8] = kuiDDL2; uiV[3] = uiV[6] = uiV[9] = uiV[12] = kuiDDL3; uiV[7] = uiV[10]= uiV[13]= kuiDDL4; uiV[11]= uiV[14]= kuiDDL5; uiV[15] = kuiDDL6; const uint32_t kuiCpuFlag = 0; WelsInitFillingPredFuncs(kuiCpuFlag); WelsI4x4LumaPredDDL_c(pPred, pRef, kiStride); for (int i=0; i<4; i++) EXPECT_EQ(LD32(&pPred[4*i]),LD32(&uiV[4*i])); delete []pRef; delete []pPred; } TEST(GetIntraPredictorTest, TestGetI4x4LumaPredDDLTop) { const int32_t kiStride = 0; uint8_t *pPred = new uint8_t[64]; uint8_t *pRef = new uint8_t[64]; for (int i=0; i<64; i++) pRef[i] = rand() % 256; const uint8_t kuiT0 = pRef[-kiStride]; const uint8_t kuiT1 = pRef[1-kiStride]; const uint8_t kuiT2 = pRef[2-kiStride]; const uint8_t kuiT3 = pRef[3-kiStride]; const uint8_t kuiDLT0 = (2 + kuiT0 + kuiT2 + (kuiT1<<1))>>2; const uint8_t kuiDLT1 = (2 + kuiT1 + kuiT3 + (kuiT2<<1))>>2; const uint8_t kuiDLT2 = (2 + kuiT2 + kuiT3 + (kuiT3<<1))>>2; const uint8_t kuiDLT3 = (2 + (kuiT3<<2))>>2; ENFORCE_STACK_ALIGN_1D(uint8_t, uiV, 16, 16) // TobeCont'd about assign opt as follows memset(&uiV[6], kuiDLT3, 10*sizeof(uint8_t)); uiV[0] = kuiDLT0; uiV[1] = uiV[4] = kuiDLT1; uiV[2] = uiV[5] = uiV[8] = kuiDLT2; uiV[3] = kuiDLT3; const uint32_t kuiCpuFlag = 0; WelsInitFillingPredFuncs(kuiCpuFlag); WelsI4x4LumaPredDDLTop_c(pPred, pRef, kiStride); for (int i=0; i<4; i++) EXPECT_EQ(LD32(&pPred[4*i]),LD32(&uiV[4*i])); delete []pRef; delete []pPred; } TEST(GetIntraPredictorTest, TestGetI4x4LumaPredDDR) { const int32_t kiStride = rand()%256+16; const int32_t kiStride2 = kiStride<<1; const int32_t kiStride3 = kiStride + kiStride2; uint8_t *pPred = new uint8_t[64]; uint8_t *pRef = new uint8_t[kiStride3+kiStride+1]; for (int i=0; i<kiStride3+kiStride+1; i++) pRef[i] = rand() % 256; pRef += kiStride + 1; const uint8_t kuiLT = pRef[-kiStride-1]; const uint8_t kuiL0 = pRef[-1]; const uint8_t kuiL1 = pRef[kiStride-1]; const uint8_t kuiL2 = pRef[kiStride2-1]; const uint8_t kuiL3 = pRef[kiStride3-1]; const uint8_t kuiT0 = pRef[-kiStride]; const uint8_t kuiT1 = pRef[1-kiStride]; const uint8_t kuiT2 = pRef[2-kiStride]; const uint8_t kuiT3 = pRef[3-kiStride]; const uint16_t kuiTL0 = 1 + kuiLT + kuiL0; const uint16_t kuiLT0 = 1 + kuiLT + kuiT0; const uint16_t kuiT01 = 1 + kuiT0 + kuiT1; const uint16_t kuiT12 = 1 + kuiT1 + kuiT2; const uint16_t kuiT23 = 1 + kuiT2 + kuiT3; const uint16_t kuiL01 = 1 + kuiL0 + kuiL1; const uint16_t kuiL12 = 1 + kuiL1 + kuiL2; const uint16_t kuiL23 = 1 + kuiL2 + kuiL3; const uint8_t kuiDDR0 = (kuiTL0 + kuiLT0) >> 2; const uint8_t kuiDDR1 = (kuiLT0 + kuiT01) >> 2; const uint8_t kuiDDR2 = (kuiT01 + kuiT12) >> 2; const uint8_t kuiDDR3 = (kuiT12 + kuiT23) >> 2; const uint8_t kuiDDR4 = (kuiTL0 + kuiL01) >> 2; const uint8_t kuiDDR5 = (kuiL01 + kuiL12) >> 2; const uint8_t kuiDDR6 = (kuiL12 + kuiL23) >> 2; ENFORCE_STACK_ALIGN_1D(uint8_t, uiV, 16, 16) // TobeCont'd about assign opt as follows uiV[0] = uiV[5] = uiV[10] = uiV[15] = kuiDDR0; uiV[1] = uiV[6] = uiV[11] = kuiDDR1; uiV[2] = uiV[7] = kuiDDR2; uiV[3] = kuiDDR3; uiV[4] = uiV[9] = uiV[14] = kuiDDR4; uiV[8] = uiV[13] = kuiDDR5; uiV[12]= kuiDDR6; const uint32_t kuiCpuFlag = 0; WelsInitFillingPredFuncs(kuiCpuFlag); WelsI4x4LumaPredDDR_c(pPred, pRef, kiStride); for (int i=0; i<4; i++) EXPECT_EQ(LD32(&pPred[4*i]),LD32(&uiV[4*i])); pRef -= kiStride + 1; delete []pRef; delete []pPred; } TEST(GetIntraPredictorTest, TestGetI4x4LumaPredVL) { const int32_t kiStride = 0; uint8_t *pPred = new uint8_t[64]; uint8_t *pRef = new uint8_t[64]; for (int i=0; i<64; i++) pRef[i] = rand() % 256; const uint8_t kuiT0 = pRef[-kiStride]; const uint8_t kuiT1 = pRef[1-kiStride]; const uint8_t kuiT2 = pRef[2-kiStride]; const uint8_t kuiT3 = pRef[3-kiStride]; const uint8_t kuiT4 = pRef[4-kiStride]; const uint8_t kuiT5 = pRef[5-kiStride]; const uint8_t kuiT6 = pRef[6-kiStride]; const uint8_t kuiVL0 = (1 + kuiT0 + kuiT1)>>1; const uint8_t kuiVL1 = (1 + kuiT1 + kuiT2)>>1; const uint8_t kuiVL2 = (1 + kuiT2 + kuiT3)>>1; const uint8_t kuiVL3 = (1 + kuiT3 + kuiT4)>>1; const uint8_t kuiVL4 = (1 + kuiT4 + kuiT5)>>1; const uint8_t kuiVL5 = (2 + kuiT0 + (kuiT1<<1) + kuiT2)>>2; const uint8_t kuiVL6 = (2 + kuiT1 + (kuiT2<<1) + kuiT3)>>2; const uint8_t kuiVL7 = (2 + kuiT2 + (kuiT3<<1) + kuiT4)>>2; const uint8_t kuiVL8 = (2 + kuiT3 + (kuiT4<<1) + kuiT5)>>2; const uint8_t kuiVL9 = (2 + kuiT4 + (kuiT5<<1) + kuiT6)>>2; ENFORCE_STACK_ALIGN_1D(uint8_t, uiV, 16, 16) // TobeCont'd about assign opt as follows uiV[0] = kuiVL0; uiV[1] = uiV[8] = kuiVL1; uiV[2] = uiV[9] = kuiVL2; uiV[3] = uiV[10]= kuiVL3; uiV[4] = kuiVL5; uiV[5] = uiV[12] = kuiVL6; uiV[6] = uiV[13] = kuiVL7; uiV[7] = uiV[14] = kuiVL8; uiV[11]= kuiVL4; uiV[15]= kuiVL9; const uint32_t kuiCpuFlag = 0; WelsInitFillingPredFuncs(kuiCpuFlag); WelsI4x4LumaPredVL_c(pPred, pRef, kiStride); for (int i=0; i<4; i++) EXPECT_EQ(LD32(&pPred[4*i]),LD32(&uiV[4*i])); delete []pRef; delete []pPred; } TEST(GetIntraPredictorTest, TestGetI4x4LumaPredVLTop) { const int32_t kiStride = 0; uint8_t *pPred = new uint8_t[64]; uint8_t *pRef = new uint8_t[64]; for (int i=0; i<64; i++) pRef[i] = rand() % 256; pRef++; uint8_t *pTopLeft = &pRef[-kiStride-1]; // top-left const uint8_t kuiT0 = *(pTopLeft+1); const uint8_t kuiT1 = *(pTopLeft+2); const uint8_t kuiT2 = *(pTopLeft+3); const uint8_t kuiT3 = *(pTopLeft+4); const uint8_t kuiVLT0 = (1 + kuiT0 + kuiT1)>>1; const uint8_t kuiVLT1 = (1 + kuiT1 + kuiT2)>>1; const uint8_t kuiVLT2 = (1 + kuiT2 + kuiT3)>>1; const uint8_t kuiVLT3 = (1 + (kuiT3<<1))>>1; const uint8_t kuiVLT4 = (2 + kuiT0 + (kuiT1<<1) + kuiT2)>>2; const uint8_t kuiVLT5 = (2 + kuiT1 + (kuiT2<<1) + kuiT3)>>2; const uint8_t kuiVLT6 = (2 + kuiT2 + (kuiT3<<1) + kuiT3)>>2; const uint8_t kuiVLT7 = (2 + (kuiT3<<2))>>2; ENFORCE_STACK_ALIGN_1D(uint8_t, uiV, 16, 16) // TobeCont'd about assign opt as follows uiV[0] = kuiVLT0; uiV[1] = uiV[8] = kuiVLT1; uiV[2] = uiV[9] = kuiVLT2; uiV[3] = uiV[10]= uiV[11] = kuiVLT3; uiV[4] = kuiVLT4; uiV[5] = uiV[12] = kuiVLT5; uiV[6] = uiV[13] = kuiVLT6; uiV[7] = uiV[14] = uiV[15] = kuiVLT7; const uint32_t kuiCpuFlag = 0; WelsInitFillingPredFuncs(kuiCpuFlag); WelsI4x4LumaPredVLTop_c(pPred, pRef, kiStride); for (int i=0; i<4; i++) EXPECT_EQ(LD32(&pPred[4*i]),LD32(&uiV[4*i])); pRef--; delete []pRef; delete []pPred; } TEST(GetIntraPredictorTest, TestGetI4x4LumaPredVR) { const int32_t kiStride = rand()%256+16; const int32_t kiStride2 = kiStride<<1; uint8_t *pPred = new uint8_t[64]; uint8_t *pRef = new uint8_t[kiStride2+kiStride+1]; for (int i=0; i<kiStride2+kiStride+1; i++) pRef[i] = rand() % 256; pRef += kiStride + 1; const uint8_t kuiLT = pRef[-kiStride-1]; // top-left const uint8_t kuiL0 = pRef[-1]; const uint8_t kuiL1 = pRef[kiStride-1]; const uint8_t kuiL2 = pRef[kiStride2-1]; const uint8_t kuiT0 = pRef[-kiStride]; const uint8_t kuiT1 = pRef[1-kiStride]; const uint8_t kuiT2 = pRef[2-kiStride]; const uint8_t kuiT3 = pRef[3-kiStride]; const uint8_t kuiVR0 = (1 + kuiLT + kuiT0) >> 1; const uint8_t kuiVR1 = (1 + kuiT0 + kuiT1) >> 1; const uint8_t kuiVR2 = (1 + kuiT1 + kuiT2) >> 1; const uint8_t kuiVR3 = (1 + kuiT2 + kuiT3) >> 1; const uint8_t kuiVR4 = (2 + kuiL0 + (kuiLT << 1) + kuiT0) >> 2; const uint8_t kuiVR5 = (2 + kuiLT + (kuiT0 << 1) + kuiT1) >> 2; const uint8_t kuiVR6 = (2 + kuiT0 + (kuiT1 << 1) + kuiT2) >> 2; const uint8_t kuiVR7 = (2 + kuiT1 + (kuiT2 << 1) + kuiT3) >> 2; const uint8_t kuiVR8 = (2 + kuiLT + (kuiL0 << 1) + kuiL1) >> 2; const uint8_t kuiVR9 = (2 + kuiL0 + (kuiL1 << 1) + kuiL2) >> 2; ENFORCE_STACK_ALIGN_1D(uint8_t, uiV, 16, 16) // TobeCont'd about assign opt as follows uiV[0] = uiV[9] = kuiVR0; uiV[1] = uiV[10] = kuiVR1; uiV[2] = uiV[11] = kuiVR2; uiV[3] = kuiVR3; uiV[4] = uiV[13] = kuiVR4; uiV[5] = uiV[14] = kuiVR5; uiV[6] = uiV[15] = kuiVR6; uiV[7] = kuiVR7; uiV[8] = kuiVR8; uiV[12]= kuiVR9; const uint32_t kuiCpuFlag = 0; WelsInitFillingPredFuncs(kuiCpuFlag); WelsI4x4LumaPredVR_c(pPred, pRef, kiStride); for (int i=0; i<4; i++) EXPECT_EQ(LD32(&pPred[4*i]),LD32(&uiV[4*i])); pRef -= kiStride + 1; delete []pRef; delete []pPred; } TEST(GetIntraPredictorTest, TestGetI4x4LumaPredHU) { const int32_t kiStride = rand()%256+16; const int32_t kiStride2 = kiStride<<1; const int32_t kiStride3 = kiStride + kiStride2; uint8_t *pPred = new uint8_t[64]; uint8_t *pRef = new uint8_t[kiStride3+1]; for (int i=0; i<kiStride3+1; i++) pRef[i] = rand() % 256; pRef++; const uint8_t kuiL0 = pRef[-1]; const uint8_t kuiL1 = pRef[kiStride-1]; const uint8_t kuiL2 = pRef[kiStride2-1]; const uint8_t kuiL3 = pRef[kiStride3-1]; const uint16_t kuiL01 = (1 + kuiL0 + kuiL1); const uint16_t kuiL12 = (1 + kuiL1 + kuiL2); const uint16_t kuiL23 = (1 + kuiL2 + kuiL3); const uint8_t kuiHU0 = kuiL01 >> 1; const uint8_t kuiHU1 = (kuiL01 + kuiL12) >> 2; const uint8_t kuiHU2 = kuiL12 >> 1; const uint8_t kuiHU3 = (kuiL12 + kuiL23) >> 2; const uint8_t kuiHU4 = kuiL23 >> 1; const uint8_t kuiHU5 = (1 + kuiL23 + (kuiL3 << 1)) >> 2; ENFORCE_STACK_ALIGN_1D(uint8_t, uiV, 16, 16) // TobeCont'd about assign opt as follows uiV[0] = kuiHU0; uiV[1] = kuiHU1; uiV[2] = uiV[4] = kuiHU2; uiV[3] = uiV[5] = kuiHU3; uiV[6] = uiV[8] = kuiHU4; uiV[7] = uiV[9] = kuiHU5; memset(&uiV[10], kuiL3, 6*sizeof(uint8_t)); const uint32_t kuiCpuFlag = 0; WelsInitFillingPredFuncs(kuiCpuFlag); WelsI4x4LumaPredHU_c(pPred, pRef, kiStride); for (int i=0; i<4; i++) EXPECT_EQ(LD32(&pPred[4*i]),LD32(&uiV[4*i])); pRef--; delete []pRef; delete []pPred; } TEST(GetIntraPredictorTest, TestGetI4x4LumaPredHD) { const int32_t kiStride = rand()%256+16; const int32_t kiStride2 = kiStride<<1; const int32_t kiStride3 = kiStride + kiStride2; uint8_t *pPred = new uint8_t[64]; uint8_t *pRef = new uint8_t[kiStride3+kiStride+1]; for (int i=0; i<kiStride3+kiStride+1; i++) pRef[i] = rand() % 256; pRef += kiStride + 1; const uint8_t kuiLT = pRef[-kiStride-1]; // top-left const uint8_t kuiL0 = pRef[-1]; const uint8_t kuiL1 = pRef[kiStride-1]; const uint8_t kuiL2 = pRef[kiStride2-1]; const uint8_t kuiL3 = pRef[kiStride3-1]; const uint8_t kuiT0 = pRef[-kiStride]; const uint8_t kuiT1 = pRef[1-kiStride]; const uint8_t kuiT2 = pRef[2-kiStride]; const uint8_t kuiHD0 = (1 + kuiLT + kuiL0)>>1; const uint8_t kuiHD1 = (2 + kuiL0 + (kuiLT<<1) + kuiT0)>>2; const uint8_t kuiHD2 = (2 + kuiLT + (kuiT0<<1) + kuiT1)>>2; const uint8_t kuiHD3 = (2 + kuiT0 + (kuiT1<<1) + kuiT2)>>2; const uint8_t kuiHD4 = (1 + kuiL0 + kuiL1)>>1; const uint8_t kuiHD5 = (2 + kuiLT + (kuiL0<<1) + kuiL1)>>2; const uint8_t kuiHD6 = (1 + kuiL1 + kuiL2)>>1; const uint8_t kuiHD7 = (2 + kuiL0 + (kuiL1<<1) + kuiL2)>>2; const uint8_t kuiHD8 = (1 + kuiL2 + kuiL3)>>1; const uint8_t kuiHD9 = (2 + kuiL1 + (kuiL2<<1) + kuiL3)>>2; ENFORCE_STACK_ALIGN_1D(uint8_t, uiV, 16, 16) // TobeCont'd about assign opt as follows uiV[0] = uiV[6] = kuiHD0; uiV[1] = uiV[7] = kuiHD1; uiV[2] = kuiHD2; uiV[3] = kuiHD3; uiV[4] = uiV[10] = kuiHD4; uiV[5] = uiV[11] = kuiHD5; uiV[8] = uiV[14] = kuiHD6; uiV[9] = uiV[15] = kuiHD7; uiV[12] = kuiHD8; uiV[13] = kuiHD9; const uint32_t kuiCpuFlag = 0; WelsInitFillingPredFuncs(kuiCpuFlag); WelsI4x4LumaPredHD_c(pPred, pRef, kiStride); for (int i=0; i<4; i++) EXPECT_EQ(LD32(&pPred[4*i]),LD32(&uiV[4*i])); pRef -= kiStride + 1; delete []pRef; delete []pPred; } TEST(GetIntraPredictorTest, TestGetIChormaPredV) { uint8_t *pPred = new uint8_t[64]; uint8_t *pRef = new uint8_t[64]; for (int i=0; i<64; i++) pRef[i] = rand() % 256 + 1; const int32_t kiStride = 0; WelsIChormaPredV_c(pPred, pRef, kiStride); for (int i=0; i<8; i++) EXPECT_EQ(LD32(&pPred[8*i]),LD32(&pRef[-kiStride])); delete []pRef; delete []pPred; } TEST(GetIntraPredictorTest, TestGetI16x16LumaPredPlane) { const int32_t kiStride = rand()%16+16; int32_t i, j; uint8_t *pPred = new uint8_t[16*kiStride]; uint8_t *pRef = new uint8_t[16*kiStride+1]; for (i=0; i<16*kiStride+1; i++) pRef[i]=rand()%256+1; pRef += kiStride + 1; int32_t iA=0, iB=0, iC=0, iH=0, iV=0; uint8_t *pTop = &pRef[-kiStride]; uint8_t *pLeft = &pRef[-1]; int32_t iPredStride = 16; for (i=0; i<8; i++) { iH += (i + 1) * (pTop[8 + i] - pTop[6 - i]); iV += (i + 1) * (pLeft[(8 + i)*kiStride] - pLeft[(6 - i)*kiStride]); } iA = (pLeft[15*kiStride] + pTop[15]) << 4; iB = (5 * iH + 32) >> 6; iC = (5 * iV + 32) >> 6; WelsI16x16LumaPredPlane_c(pPred, pRef, kiStride); for (i=0; i<16; i++) { for (j=0; j<16; j++) { EXPECT_EQ(pPred[j],(uint8_t)WelsClip1((iA + iB * (j - 7) + iC * (i - 7) + 16) >> 5)); } pPred += iPredStride; } pRef -= kiStride + 1; delete []pRef; } TEST(GetIntraPredictorTest, TestGetI16x16LumaPredDc) { const int32_t kiStride = rand()%16+16; int i; uint8_t *pPred = new uint8_t[256]; uint8_t *pRef = new uint8_t[16*kiStride]; for (i=0; i<16*kiStride; i++) pRef[i] = rand() % 256 + 1; pRef += kiStride; int32_t iTmp = (kiStride << 4) - kiStride; int32_t iSum = 0; i = 15; uint8_t uiMean = 0; do { iSum += pRef[-1+iTmp] + pRef[-kiStride+i]; iTmp -= kiStride; } while(i-- > 0); uiMean = ( 16 + iSum ) >> 5; WelsI16x16LumaPredDc_c(pPred, pRef, kiStride); for (i=0; i<256; i++) EXPECT_EQ(pPred[i],uiMean); pRef -= kiStride; delete []pRef; delete []pPred; } TEST(GetIntraPredictorTest, TestGetI16x16LumaPredDcTop) { const int32_t kiStride = rand()%16+16; int i; uint8_t *pPred = new uint8_t[256]; uint8_t *pRef = new uint8_t[16*kiStride]; for (i=0; i<16*kiStride; i++) pRef[i] = rand() % 256 + 1; pRef += kiStride; int32_t iSum = 0; i = 15; uint8_t uiMean = 0; do { iSum += pRef[-kiStride+i]; } while(i-- > 0); uiMean = ( 8 + iSum ) >> 4; WelsI16x16LumaPredDcTop_c(pPred, pRef, kiStride); for (i=0; i<256; i++) EXPECT_EQ(pPred[i],uiMean); pRef -= kiStride; delete []pRef; delete []pPred; }