diff options
Diffstat (limited to '')
-rw-r--r-- | third_party/aom/test/av1_fwd_txfm1d_test.cc | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/third_party/aom/test/av1_fwd_txfm1d_test.cc b/third_party/aom/test/av1_fwd_txfm1d_test.cc new file mode 100644 index 0000000000..6bae9f8364 --- /dev/null +++ b/third_party/aom/test/av1_fwd_txfm1d_test.cc @@ -0,0 +1,108 @@ +/* + * 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 <memory> +#include <new> + +#include "av1/encoder/av1_fwd_txfm1d.h" +#include "test/av1_txfm_test.h" + +using libaom_test::ACMRandom; +using libaom_test::input_base; +using libaom_test::reference_hybrid_1d; +using libaom_test::TYPE_ADST; +using libaom_test::TYPE_DCT; +using libaom_test::TYPE_IDTX; +using libaom_test::TYPE_TXFM; + +namespace { +const int txfm_type_num = 3; +const TYPE_TXFM txfm_type_ls[txfm_type_num] = { TYPE_DCT, TYPE_ADST, + TYPE_IDTX }; + +const int txfm_size_num = 5; + +const int txfm_size_ls[] = { 4, 8, 16, 32, 64 }; + +const TxfmFunc fwd_txfm_func_ls[][txfm_type_num] = { + { av1_fdct4, av1_fadst4, av1_fidentity4_c }, + { av1_fdct8, av1_fadst8, av1_fidentity8_c }, + { av1_fdct16, av1_fadst16, av1_fidentity16_c }, + { av1_fdct32, nullptr, av1_fidentity32_c }, + { av1_fdct64, nullptr, nullptr }, +}; + +// the maximum stage number of fwd/inv 1d dct/adst txfm is 12 +const int8_t cos_bit = 13; +const int8_t range_bit[12] = { 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20 }; + +TEST(av1_fwd_txfm1d, round_shift) { + EXPECT_EQ(round_shift(7, 1), 4); + EXPECT_EQ(round_shift(-7, 1), -3); + + EXPECT_EQ(round_shift(7, 2), 2); + EXPECT_EQ(round_shift(-7, 2), -2); + + EXPECT_EQ(round_shift(8, 2), 2); + EXPECT_EQ(round_shift(-8, 2), -2); +} + +TEST(av1_fwd_txfm1d, av1_cospi_arr_data) { + for (int i = 0; i < 4; i++) { + for (int j = 0; j < 64; j++) { + EXPECT_EQ(av1_cospi_arr_data[i][j], + (int32_t)round(cos(PI * j / 128) * (1 << (cos_bit_min + i)))); + } + } +} + +TEST(av1_fwd_txfm1d, accuracy) { + ACMRandom rnd(ACMRandom::DeterministicSeed()); + for (int si = 0; si < txfm_size_num; ++si) { + int txfm_size = txfm_size_ls[si]; + std::unique_ptr<int32_t[]> input(new (std::nothrow) int32_t[txfm_size]); + std::unique_ptr<int32_t[]> output(new (std::nothrow) int32_t[txfm_size]); + std::unique_ptr<double[]> ref_input(new (std::nothrow) double[txfm_size]); + std::unique_ptr<double[]> ref_output(new (std::nothrow) double[txfm_size]); + ASSERT_NE(input, nullptr); + ASSERT_NE(output, nullptr); + ASSERT_NE(ref_input, nullptr); + ASSERT_NE(ref_output, nullptr); + + for (int ti = 0; ti < txfm_type_num; ++ti) { + TYPE_TXFM txfm_type = txfm_type_ls[ti]; + TxfmFunc fwd_txfm_func = fwd_txfm_func_ls[si][ti]; + int max_error = 7; + + const int count_test_block = 5000; + if (fwd_txfm_func != nullptr) { + for (int i = 0; i < count_test_block; ++i) { + for (int ni = 0; ni < txfm_size; ++ni) { + input[ni] = rnd.Rand16() % input_base - rnd.Rand16() % input_base; + ref_input[ni] = static_cast<double>(input[ni]); + } + + fwd_txfm_func(input.get(), output.get(), cos_bit, range_bit); + reference_hybrid_1d(ref_input.get(), ref_output.get(), txfm_size, + txfm_type); + + for (int ni = 0; ni < txfm_size; ++ni) { + ASSERT_LE( + abs(output[ni] - static_cast<int32_t>(round(ref_output[ni]))), + max_error) + << "tx size = " << txfm_size << ", tx type = " << txfm_type; + } + } + } + } + } +} +} // namespace |