ref: 4eb2db4be113ec2c3b6b52b7cdad9c8863729438
dir: /test/encoder/EncUT_ExpGolomb.cpp/
#include <gtest/gtest.h> #include <math.h> #include "svc_enc_golomb.h" #include "macros.h" using namespace WelsEnc; const double g_kdLog2Factor = 1.0 / log (2.0); TEST (UeExpGolombTest, TestBsSizeUeLt256) { uint32_t uiInVal = 0; for (; uiInVal < 256; ++ uiInVal) { const uint32_t uiActVal = BsSizeUE (uiInVal); const int32_t m = static_cast<int32_t> (log ((uiInVal + 1) * 1.0) * g_kdLog2Factor + 1e-6); const uint32_t uiExpVal = (m << 1) + 1; EXPECT_EQ (uiActVal, uiExpVal); } } TEST (UeExpGolombTest, TestBsSizeUeRangeFrom256To65534) { uint32_t uiInVal = 0x100; for (; uiInVal < 0xFFFF; ++ uiInVal) { const uint32_t uiActVal = BsSizeUE (uiInVal); const int32_t m = static_cast<int32_t> (log ((uiInVal + 1) * 1.0) * g_kdLog2Factor + 1e-6); const uint32_t uiExpVal = (m << 1) + 1; EXPECT_EQ (uiActVal, uiExpVal); } } TEST (UeExpGolombTest, TestBsSizeUeRangeFrom65535ToPlus256) { uint32_t uiInVal = 0xFFFF; const uint32_t uiCountBase = 256; const uint32_t uiInValEnd = uiInVal + uiCountBase; for (; uiInVal < uiInValEnd; ++ uiInVal) { const uint32_t uiActVal = BsSizeUE (uiInVal); // float precision issue in case use math::log const int32_t m = WELS_LOG2 (1 + uiInVal); const uint32_t uiExpVal = (m << 1) + 1; EXPECT_EQ (uiActVal, uiExpVal); } }