Commit af38f6fc authored by Angie Chiang's avatar Angie Chiang

Add vp10_fwd_txfm2d_test

Change-Id: Icbc17403430751d3a841f822a190f0c30450d603
parent 45222e5b
......@@ -173,6 +173,7 @@ LIBVPX_TEST_SRCS-$(CONFIG_VP10) += vp10_inv_txfm_test.cc
LIBVPX_TEST_SRCS-$(CONFIG_VP10) += vp10_txfm_test.h
LIBVPX_TEST_SRCS-$(CONFIG_VP10) += vp10_fwd_txfm1d_test.cc
LIBVPX_TEST_SRCS-$(CONFIG_VP10) += vp10_inv_txfm1d_test.cc
LIBVPX_TEST_SRCS-$(CONFIG_VP10) += vp10_fwd_txfm2d_test.cc
endif # CONFIG_SHARED
......
/*
* Copyright (c) 2015 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "third_party/googletest/src/include/gtest/gtest.h"
#include "test/acm_random.h"
#include "test/vp10_txfm_test.h"
#include "vp10/common/vp10_fwd_txfm2d.h"
#include "vp10/common/vp10_fwd_txfm2d_cfg.h"
using libvpx_test::ACMRandom;
namespace {
const int txfm_size_num = 4;
const int txfm_size_ls[4] = {4, 8, 16, 32};
const TXFM_2D_CFG fwd_txfm_cfg_ls[4][4] = {
{fwd_txfm_2d_cfg_dct_dct_4, fwd_txfm_2d_cfg_dct_adst_4,
fwd_txfm_2d_cfg_adst_adst_4, fwd_txfm_2d_cfg_adst_dct_4},
{fwd_txfm_2d_cfg_dct_dct_8, fwd_txfm_2d_cfg_dct_adst_8,
fwd_txfm_2d_cfg_adst_adst_8, fwd_txfm_2d_cfg_adst_dct_8},
{fwd_txfm_2d_cfg_dct_dct_16, fwd_txfm_2d_cfg_dct_adst_16,
fwd_txfm_2d_cfg_adst_adst_16, fwd_txfm_2d_cfg_adst_dct_16},
{fwd_txfm_2d_cfg_dct_dct_32, fwd_txfm_2d_cfg_dct_adst_32,
fwd_txfm_2d_cfg_adst_adst_32, fwd_txfm_2d_cfg_adst_dct_32}};
const Fwd_Txfm2d_Func fwd_txfm_func_ls[4] = {
vp10_fwd_txfm2d_4x4, vp10_fwd_txfm2d_8x8, vp10_fwd_txfm2d_16x16,
vp10_fwd_txfm2d_32x32};
const int txfm_type_num = 4;
const TYPE_TXFM type_ls_0[4] = {TYPE_DCT, TYPE_DCT, TYPE_ADST, TYPE_ADST};
const TYPE_TXFM type_ls_1[4] = {TYPE_DCT, TYPE_ADST, TYPE_ADST, TYPE_DCT};
TEST(vp10_fwd_txfm2d, accuracy) {
for (int txfm_size_idx = 0; txfm_size_idx < txfm_size_num; ++txfm_size_idx) {
int txfm_size = txfm_size_ls[txfm_size_idx];
int sqr_txfm_size = txfm_size * txfm_size;
int16_t* input = new int16_t[sqr_txfm_size];
int32_t* output = new int32_t[sqr_txfm_size];
double* ref_input = new double[sqr_txfm_size];
double* ref_output = new double[sqr_txfm_size];
for (int txfm_type_idx = 0; txfm_type_idx < txfm_type_num;
++txfm_type_idx) {
TXFM_2D_CFG fwd_txfm_cfg = fwd_txfm_cfg_ls[txfm_size_idx][txfm_type_idx];
Fwd_Txfm2d_Func fwd_txfm_func = fwd_txfm_func_ls[txfm_size_idx];
TYPE_TXFM type0 = type_ls_0[txfm_type_idx];
TYPE_TXFM type1 = type_ls_1[txfm_type_idx];
int amplify_bit =
fwd_txfm_cfg.shift[0] + fwd_txfm_cfg.shift[1] + fwd_txfm_cfg.shift[2];
double amplify_factor =
amplify_bit >= 0 ? (1 << amplify_bit) : (1.0 / (1 << -amplify_bit));
ACMRandom rnd(ACMRandom::DeterministicSeed());
int count = 5000;
double avg_abs_error = 0;
for (int ci = 0; ci < count; ci++) {
for (int ni = 0; ni < sqr_txfm_size; ++ni) {
input[ni] = rnd.Rand16() % base;
ref_input[ni] = static_cast<double>(input[ni]);
output[ni] = 0;
ref_output[ni] = 0;
}
fwd_txfm_func(input, output, txfm_size, &fwd_txfm_cfg, bd);
reference_hybrid_2d(ref_input, ref_output, txfm_size, type0, type1);
for (int ni = 0; ni < sqr_txfm_size; ++ni) {
ref_output[ni] = round(ref_output[ni] * amplify_factor);
EXPECT_LE(fabs(output[ni] - ref_output[ni]) / amplify_factor, 30);
}
avg_abs_error += compute_avg_abs_error<int32_t, double>(
output, ref_output, sqr_txfm_size);
}
avg_abs_error /= amplify_factor;
avg_abs_error /= count;
// max_abs_avg_error comes from upper bound of avg_abs_error
// printf("type0: %d type1: %d txfm_size: %d accuracy_avg_abs_error:
// %f\n", type0, type1, txfm_size, avg_abs_error);
double max_abs_avg_error = 1.5;
EXPECT_LE(avg_abs_error, max_abs_avg_error);
}
delete[] input;
delete[] output;
delete[] ref_input;
delete[] ref_output;
}
}
} // anonymous namespace
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