Commit b934148f authored by Angie Chiang's avatar Angie Chiang

Add vp10_fwd_txfm1d_test

Change-Id: If3bef2be355227cfc2932e4471b84c21c7cd2b90
parent a9253a20
......@@ -170,6 +170,8 @@ TEST_INTRA_PRED_SPEED_SRCS-$(CONFIG_VP9) += ../md5_utils.h ../md5_utils.c
## VP10
LIBVPX_TEST_SRCS-$(CONFIG_VP10_ENCODER) += vp10_dct_test.cc
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
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 "test/vp10_txfm_test.h"
#include "vp10/common/vp10_fwd_txfm1d.h"
using libvpx_test::ACMRandom;
namespace {
static int txfm_type_num = 2;
static TYPE_TXFM txfm_type_ls[2] = {TYPE_DCT, TYPE_ADST};
static int txfm_size_num = 4;
static int txfm_size_ls[4] = {4, 8, 16, 32};
static TxfmFunc fwd_txfm_func_ls[2][4] = {
{vp10_fdct4_new, vp10_fdct8_new, vp10_fdct16_new, vp10_fdct32_new},
{vp10_fadst4_new, vp10_fadst8_new, vp10_fadst16_new, vp10_fadst32_new}};
// the maximum stage number of fwd/inv 1d dct/adst txfm is 12
static int8_t cos_bit[12] = {14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14};
static int8_t range_bit[12] = {32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32};
TEST(vp10_fwd_txfm1d, round_shift) {
EXPECT_EQ(round_shift(7, 1), 3);
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(vp10_fwd_txfm1d, get_max_bit) {
int max_bit = get_max_bit(8);
EXPECT_EQ(max_bit, 3);
}
TEST(vp10_fwd_txfm1d, half_btf) {
int32_t max = (1 << 15) - 1;
int32_t w0 = max;
int32_t in0 = max;
int32_t w1 = max;
int32_t in1 = max;
int32_t result_32 = half_btf(w0, in0, w1, in1, 0);
int64_t result_64 = (int64_t)w0 * (int64_t)in0 + (int64_t)w1 * (int64_t)in1;
EXPECT_EQ(result_32, result_64);
}
TEST(vp10_fwd_txfm1d, cospi_arr) {
for (int i = 0; i < 7; i++) {
for (int j = 0; j < 64; j++) {
EXPECT_EQ(cospi_arr[i][j],
(int32_t)round(cos(M_PI * j / 128) * (1 << (cos_bit_min + i))));
}
}
}
TEST(vp10_fwd_txfm1d, clamp_block) {
int16_t block[5][5] = {{7, -5, 6, -3, 9},
{7, -5, 6, -3, 9},
{7, -5, 6, -3, 9},
{7, -5, 6, -3, 9},
{7, -5, 6, -3, 9}};
int16_t ref_block[5][5] = {{7, -5, 6, -3, 9},
{7, -5, 6, -3, 9},
{7, -4, 2, -3, 9},
{7, -4, 2, -3, 9},
{7, -4, 2, -3, 9}};
int row = 2;
int col = 1;
int block_size = 3;
int stride = 5;
clamp_block(block[row] + col, block_size, stride, -4, 2);
for (int r = 0; r < stride; r++) {
for (int c = 0; c < stride; c++) {
EXPECT_EQ(block[r][c], ref_block[r][c]);
}
}
}
TEST(vp10_fwd_txfm1d, accuracy) {
ACMRandom rnd(ACMRandom::DeterministicSeed());
for (int si = 0; si < txfm_size_num; ++si) {
int txfm_size = txfm_size_ls[si];
int32_t *input = new int32_t[txfm_size];
int32_t *output = new int32_t[txfm_size];
double *ref_input = new double[txfm_size];
double *ref_output = new double[txfm_size];
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[ti][si];
int max_error = 7;
const int count_test_block = 5000;
for (int ti = 0; ti < count_test_block; ++ti) {
for (int ni = 0; ni < txfm_size; ++ni) {
input[ni] = rnd.Rand16() % base - rnd.Rand16() % base;
ref_input[ni] = static_cast<double>(input[ni]);
}
fwd_txfm_func(input, output, cos_bit, range_bit);
reference_hybrid_1d(ref_input, ref_output, txfm_size, txfm_type);
for (int ni = 0; ni < txfm_size; ++ni) {
EXPECT_LE(
abs(output[ni] - static_cast<int32_t>(round(ref_output[ni]))),
max_error);
}
}
}
delete[] input;
delete[] output;
delete[] ref_input;
delete[] ref_output;
}
}
} // namespace
/*
* 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.
*/
#ifndef VP10_TXFM_TEST_H_
#define VP10_TXFM_TEST_H_
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "third_party/googletest/src/include/gtest/gtest.h"
#include "test/acm_random.h"
#include "vp10/common/vp10_txfm.h"
typedef enum {
TYPE_DCT = 0,
TYPE_ADST,
TYPE_IDCT,
TYPE_IADST,
TYPE_LAST
} TYPE_TXFM;
static double invSqrt2 = 1 / pow(2, 0.5);
static void reference_dct_1d(const double* in, double* out, int size) {
for (int k = 0; k < size; ++k) {
out[k] = 0;
for (int n = 0; n < size; ++n) {
out[k] += in[n] * cos(M_PI * (2 * n + 1) * k / (2 * size));
}
if (k == 0) out[k] = out[k] * invSqrt2;
}
}
static void reference_adst_1d(const double* in, double* out, int size) {
for (int k = 0; k < size; ++k) {
out[k] = 0;
for (int n = 0; n < size; ++n) {
out[k] += in[n] * sin(M_PI * (2 * n + 1) * (2 * k + 1) / (4 * size));
}
}
}
static void reference_hybrid_1d(double* in, double* out, int size, int type) {
if (type == TYPE_DCT)
reference_dct_1d(in, out, size);
else
reference_adst_1d(in, out, size);
}
static void reference_hybrid_2d(double* in, double* out, int size, int type0,
int type1) {
double* tempOut = new double[size * size];
for (int r = 0; r < size; r++) {
// out ->tempOut
for (int c = 0; c < size; c++) {
tempOut[r * size + c] = in[c * size + r];
}
}
// dct each row: in -> out
for (int r = 0; r < size; r++) {
reference_hybrid_1d(tempOut + r * size, out + r * size, size, type0);
}
for (int r = 0; r < size; r++) {
// out ->tempOut
for (int c = 0; c < size; c++) {
tempOut[r * size + c] = out[c * size + r];
}
}
for (int r = 0; r < size; r++) {
reference_hybrid_1d(tempOut + r * size, out + r * size, size, type1);
}
delete[] tempOut;
}
template <typename Type1, typename Type2>
static double compute_avg_abs_error(const Type1* a, const Type2* b,
const int size) {
double error = 0;
for (int i = 0; i < size; i++) {
error += fabs(static_cast<double>(a[i]) - static_cast<double>(b[i]));
}
error = error / size;
return error;
}
typedef void (*TxfmFunc)(const int32_t* in, int32_t* out, const int8_t* cos_bit,
const int8_t* range_bit);
typedef void (*Fwd_Txfm2d_Func)(const int16_t*, int32_t*, const int,
const TXFM_2D_CFG*, const int);
typedef void (*Inv_Txfm2d_Func)(const int32_t*, uint16_t*, const int,
const TXFM_2D_CFG*, const int);
static const int bd = 10;
static const int base = (1 << bd);
#endif // VP10_TXFM_TEST_H_
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