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Diffstat (limited to 'third_party/aom/test/idct8x8_test.cc')
-rw-r--r-- | third_party/aom/test/idct8x8_test.cc | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/third_party/aom/test/idct8x8_test.cc b/third_party/aom/test/idct8x8_test.cc deleted file mode 100644 index f99a4075f..000000000 --- a/third_party/aom/test/idct8x8_test.cc +++ /dev/null @@ -1,86 +0,0 @@ -/* - * Copyright (c) 2016, Alliance for Open Media. All rights reserved - * - * This source code is subject to the terms of the BSD 2 Clause License and - * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License - * was not distributed with this source code in the LICENSE file, you can - * obtain it at www.aomedia.org/license/software. If the Alliance for Open - * Media Patent License 1.0 was not distributed with this source code in the - * PATENTS file, you can obtain it at www.aomedia.org/license/patent. -*/ - -#include <math.h> -#include <stdlib.h> -#include <string.h> - -#include "third_party/googletest/src/googletest/include/gtest/gtest.h" - -#include "./aom_dsp_rtcd.h" -#include "test/acm_random.h" -#include "aom/aom_integer.h" -#include "aom_ports/msvc.h" // for round() - -using libaom_test::ACMRandom; - -namespace { - -void reference_dct_1d(double input[8], double output[8]) { - const double kPi = 3.141592653589793238462643383279502884; - const double kInvSqrt2 = 0.707106781186547524400844362104; - for (int k = 0; k < 8; k++) { - output[k] = 0.0; - for (int n = 0; n < 8; n++) - output[k] += input[n] * cos(kPi * (2 * n + 1) * k / 16.0); - if (k == 0) output[k] = output[k] * kInvSqrt2; - } -} - -void reference_dct_2d(int16_t input[64], double output[64]) { - // First transform columns - for (int i = 0; i < 8; ++i) { - double temp_in[8], temp_out[8]; - for (int j = 0; j < 8; ++j) temp_in[j] = input[j * 8 + i]; - reference_dct_1d(temp_in, temp_out); - for (int j = 0; j < 8; ++j) output[j * 8 + i] = temp_out[j]; - } - // Then transform rows - for (int i = 0; i < 8; ++i) { - double temp_in[8], temp_out[8]; - for (int j = 0; j < 8; ++j) temp_in[j] = output[j + i * 8]; - reference_dct_1d(temp_in, temp_out); - for (int j = 0; j < 8; ++j) output[j + i * 8] = temp_out[j]; - } - // Scale by some magic number - for (int i = 0; i < 64; ++i) output[i] *= 2; -} - -TEST(AV1Idct8x8Test, AccuracyCheck) { - ACMRandom rnd(ACMRandom::DeterministicSeed()); - const int count_test_block = 10000; - for (int i = 0; i < count_test_block; ++i) { - int16_t input[64]; - tran_low_t coeff[64]; - double output_r[64]; - uint8_t dst[64], src[64]; - - for (int j = 0; j < 64; ++j) { - src[j] = rnd.Rand8(); - dst[j] = rnd.Rand8(); - } - // Initialize a test block with input range [-255, 255]. - for (int j = 0; j < 64; ++j) input[j] = src[j] - dst[j]; - - reference_dct_2d(input, output_r); - for (int j = 0; j < 64; ++j) - coeff[j] = static_cast<tran_low_t>(round(output_r[j])); - aom_idct8x8_64_add_c(coeff, dst, 8); - for (int j = 0; j < 64; ++j) { - const int diff = dst[j] - src[j]; - const int error = diff * diff; - EXPECT_GE(1, error) << "Error: 8x8 FDCT/IDCT has error " << error - << " at index " << j; - } - } -} - -} // namespace |