76 строки
2.6 KiB
C++
76 строки
2.6 KiB
C++
/*
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* Copyright (c) 2015 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "test/av1_txfm_test.h"
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#include "av1/common/av1_fwd_txfm1d.h"
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#include "av1/common/av1_inv_txfm1d.h"
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using libaom_test::ACMRandom;
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using libaom_test::input_base;
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namespace {
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const int txfm_type_num = 2;
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const int txfm_size_num = 5;
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const int txfm_size_ls[5] = { 4, 8, 16, 32 };
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const TxfmFunc fwd_txfm_func_ls[2][5] = {
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{ av1_fdct4_new, av1_fdct8_new, av1_fdct16_new, av1_fdct32_new, NULL },
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{ av1_fadst4_new, av1_fadst8_new, av1_fadst16_new, av1_fadst32_new, NULL }
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};
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const TxfmFunc inv_txfm_func_ls[2][5] = {
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{ av1_idct4_new, av1_idct8_new, av1_idct16_new, av1_idct32_new, NULL },
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{ av1_iadst4_new, av1_iadst8_new, av1_iadst16_new, av1_iadst32_new, NULL }
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};
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// the maximum stage number of fwd/inv 1d dct/adst txfm is 12
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const int8_t cos_bit[12] = { 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14 };
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const int8_t range_bit[12] = { 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32 };
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TEST(av1_inv_txfm1d, round_trip) {
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ACMRandom rnd(ACMRandom::DeterministicSeed());
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for (int si = 0; si < txfm_size_num; ++si) {
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int txfm_size = txfm_size_ls[si];
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int32_t *input = new int32_t[txfm_size];
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int32_t *output = new int32_t[txfm_size];
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int32_t *round_trip_output = new int32_t[txfm_size];
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for (int ti = 0; ti < txfm_type_num; ++ti) {
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TxfmFunc fwd_txfm_func = fwd_txfm_func_ls[ti][si];
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TxfmFunc inv_txfm_func = inv_txfm_func_ls[ti][si];
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int max_error = 2;
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if (fwd_txfm_func != NULL) {
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const int count_test_block = 5000;
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for (int ci = 0; ci < count_test_block; ++ci) {
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for (int ni = 0; ni < txfm_size; ++ni) {
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input[ni] = rnd.Rand16() % input_base - rnd.Rand16() % input_base;
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}
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fwd_txfm_func(input, output, cos_bit, range_bit);
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inv_txfm_func(output, round_trip_output, cos_bit, range_bit);
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for (int ni = 0; ni < txfm_size; ++ni) {
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int node_err =
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abs(input[ni] - round_shift(round_trip_output[ni],
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get_max_bit(txfm_size) - 1));
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EXPECT_LE(node_err, max_error);
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}
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}
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}
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}
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delete[] input;
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delete[] output;
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delete[] round_trip_output;
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}
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}
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} // namespace
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